WO1999030036A1 - Reciprocating compressor - Google Patents
Reciprocating compressor Download PDFInfo
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- WO1999030036A1 WO1999030036A1 PCT/JP1998/005482 JP9805482W WO9930036A1 WO 1999030036 A1 WO1999030036 A1 WO 1999030036A1 JP 9805482 W JP9805482 W JP 9805482W WO 9930036 A1 WO9930036 A1 WO 9930036A1
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- valve
- discharge
- plate
- suction
- chamber
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
Definitions
- the present invention relates to a reciprocating compressor such as a swash plate compressor and an oscillating plate compressor.
- a conventional swash plate type compressor is disposed between a cylinder block and a cylinder head, and a valve plate that separates a compression chamber from a discharge chamber and a suction chamber, and discharges refrigerant gas from the compression chamber.
- a discharge port for discharging into the chamber a suction port for drawing refrigerant gas from the suction chamber into the compression chamber, a discharge valve for opening and closing the discharge port, and a suction valve for opening and closing the suction port.
- a stopper for suppressing the opening amount of the discharge valve.
- FIG. 5 is a partial cross-sectional view of a conventional swash plate compressor in which a valve plate, a valve sheet, and a top plate are stacked.
- a discharge port 103 a is formed in the knob plate 103.
- the valve sheet 127 has a discharge valve 127a opposed to the discharge port 103a.
- the stop plate 1229 is provided with a stop 1229a corresponding to the discharge valve 127a.
- the present invention has been made in view of such circumstances, and an object thereof is to provide a reciprocating compressor having excellent discharge valve durability and low noise. Disclosure of the invention
- a reciprocating compressor is provided between a cylinder block and a cylinder head to partition a compression chamber from a high-pressure chamber and a low-pressure chamber.
- a discharge port for discharging the refrigerant gas from the compression chamber to the high-pressure chamber; a suction port for drawing the refrigerant gas from the low-pressure chamber into the compression chamber; and a discharge port for opening and closing the discharge port.
- a reciprocating compressor comprising: a discharge valve; a suction valve for opening and closing the suction port; and a stopper for suppressing an opening amount of the discharge valve. It is characterized in that it is located between the stopper and the valve plate.
- the discharge valve When the compressor is stopped, the discharge valve is located between the stop and the valve plate.Therefore, when the discharge valve is opened and closed, the displacement of the discharge valve decreases, and the discharge valve valve The impact at the time of sitting on the vehicle is reduced. As a result, the impact sound is suppressed, and the discharge valve can be prevented from being damaged, and the durability is improved. improves.
- the stop and the suction port are formed on the same plate, and the tip of the suction valve is separated from the plate when the compressor stops operating. It is characterized by
- FIG. 1 is a cross-sectional view taken along the line 1A-1A in FIG. 4 (a).
- FIG. 2 is a longitudinal sectional view of the swash plate compressor according to one embodiment of the present invention.
- FIG. 3 is an exploded perspective view showing a valve plate, a valve sheet, and a top plate.
- Fig. 4 (a) is a plan view of a part of the stop plate when the valve plate, valve sheet and stop plate are stacked
- Fig. 4 (b) is Fig. 4 (b). It is sectional drawing which follows the 4B-4B line of (a).
- FIG. 5 is a cross-sectional view of a conventional swash plate type compressor in which a valve plate, a valve sheet, and a top plate are stacked.
- FIG. 2 is a longitudinal sectional view of the swash plate compressor according to one embodiment of the present invention.
- the front-side cylinder block 1 and the rear-side cylinder block 2 are axially opposed to each other.
- One end of the joined cylinder blocks 1 and 2 is connected to the front head 4 via a valve plate 3, a valve sheet 27 and a stop plate (plate) 29. Is fixed, and the other end is fixed to a rear head 6 via a valve plate 5, a valve sheet 28 and a stop plate (plate) 30.
- a front shell 13 is provided integrally with the front head 4 and a rear shell 14 is provided integrally with the rear head 6, and the front shell 13 and the rear shell 13 are provided integrally.
- the shell 14 is fitted in the axial direction via the O-ring 38.
- the front head 4, the cylinder blocks 1 and 2, the shells 13 and 14, and the rear head 6 pass through and are axially connected by a port 39.
- a drive shaft 7 is disposed at the center of the cylinder blocks 1 and 2, and a swash plate 8 is fixed to the drive shaft 7.
- the drive shaft 7 and the swash plate 8 are bearings 9 and 1. It is rotatably supported by 0.
- the swash plate 8 tilts and lays on an imaginary plane orthogonal to the drive shaft 7.
- Each of the cylinder blocks 1 and 2 is provided with a plurality of cylinder pores 11.
- Each of the cylinder pores 11 is parallel to the drive shaft 7 and has a predetermined interval in a circumferential direction around the drive shaft 7. It is arranged every other.
- a piston 12 is slidably accommodated in each cylinder bore 11.
- Compression chambers 21 and 22 are formed on both sides of the piston 12 in each cylinder pore 11.
- the piston 12 is connected to the swash plate through a substantially hemispherical shroud 19, 20, and the piston 12 is provided in the cylinder bore 11 as the swash plate 8 rotates. Reciprocate.
- Fig. 3 is an exploded perspective view showing a valve plate, a valve sheet and a stop plate
- Fig. 4 (a) shows a valve plate, a valve sheet and a stop plate
- Fig. 4 (b) is a cross-sectional view taken along line 4B-4B of Fig. 4 (a)
- Fig. 1 is a cross-sectional view of a part of the top plate when stacked.
- FIG. 2 is a cross-sectional view taken along line 1 A-1 A of a).
- the substantially disk-shaped valve plates 3 and 5 have compression chambers 21 and
- 3 c and 5 c are formed respectively.
- the suction valve relief holes 3b and 5b are adjacent to the suction ports 29d and 30d via the suction valves 27d and 28d, respectively, and the suction valves 27d and 28d When opened, it communicates with suction ports 29d and 30d.
- Tongue-shaped discharge valves 27a, 28a and tongue-shaped suction valves 27d, 28d are formed in the substantially disk-shaped valve sheets 27, 28, respectively. With the bolt through hole 27 c and 28 c are formed.
- the substantially disk-shaped toe plate 29, 30 has a groove-shaped toe plate 29a, 30 that suppresses the opening or deformation of the discharge valves 27a, 28a. a, suction ports 29 d and 30 d for allowing the refrigerant gas in the suction chamber (low-pressure chamber) 23 to be sucked into the compression chambers 21 and 22, and port through holes 29 c and 30 c are provided. Each is formed.
- discharge holes 29b and 30b are formed along the longitudinal direction of the stop holes 29a and 30a.
- the discharge valves 27a, 2a are placed on the discharge ports 3a, 5a. 8a are opposed to each other via the discharge ports 3a and 5a of the valve plates 3 and 5 and the discharge holes 29b and 30b of the stopper ⁇ ° plates 29 and 30.
- the compression chambers 2 1 and 2 2 communicate with the discharge chamber 24.
- the swash plate 8 When the drive shaft 7 rotates, the swash plate 8 also rotates integrally. The rotation of the swash plate 8 causes the piston 12 to reciprocate in the cylinder pore 11.
- the piston 12 moves to the valve plate 5 side, and the compression chamber 21 side moves.
- the suction stroke is completed, and in the compression chamber 22, the compression stroke and the discharge stroke are completed.
- the swash plate 8 further rotates 1 Z 2 from this state, the suction stroke is completed in the compression chamber 22, and the compression stroke and the discharge stroke are completed in the compression chamber 21.
- the suction valves 27 d and 28 d serve as suction valve escape holes.
- the discharge valves 27a and 28a are elastically deformed toward the discharge chamber by the refrigerant gas compressed in the compression chambers 21 and 22 and the discharge ports 3a and 5a and the discharge ports are discharged. High-pressure refrigerant gas is discharged from the compression chambers 21 and 22 to the discharge chamber 24 through the holes 29b and 30b.
- the discharge valves 27a and 28a are located between the stoppers 29a and 30a and the valve plates 3 and 5, the discharge valves 27a and 28a are opened and closed.
- the movement amount of 28a is small, and the shock when the discharge valves 27a, 28a are seated on the knob plates 3, 5 is reduced. As a result, noise is reduced, and the discharge valves 27a and 28a can be prevented from being damaged, and durability is improved.
- discharge valves 27a and 28a are pulled toward the valve plates 3 and 5 during the refrigerant gas suction stroke, so that the compression The valve will open promptly.
- the high-pressure refrigerant gas quickly flows from the compression chambers 21 and 22 to the discharge chamber 24, suppressing overcompression of the refrigerant gas and reducing power consumption.
- the discharge valves 27a and 28a are arranged in the middle between the stoppers 29a and 30a and the discharge ports 3a and 5a. At the beginning, before the discharge valves 27a and 28a close, the high-pressure refrigerant gas flows back into the compression chambers 21 and 22 and the performance may be reduced.
- the tip of the suction valve 27d, 28d in the assembled state should be bent so as to be away from the top plate 29, 30.
- the high-pressure refrigerant gas flowing backward from the discharge chamber 24 to the compression chambers 21 and 22 flows out to the suction chamber 23, and the suction valves 27d and 28d are quickly discharged. Since the valve opens very well, performance degradation can be suppressed.
- the invention of the present application is applied to a swash plate compressor with a shell.
- the invention can be applied to a compressor without a shell.
- the reciprocating compressor according to the present invention is useful as a refrigerant compressor for an air conditioner for a vehicle.
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- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
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Abstract
A reciprocating compressor, wherein a discharge valve (27a, 28a) is positioned halfway between a stopper plate (29, 30) and a valve plate (3, 5) when the compressor is stopped, the amount of movement of the discharge valve (27a, 28a) becoming small when it is opened and closed, whereby an impact occurring when the discharge valve (27a, 28a) is seated on the valve plate (3, 5) is cushioned.
Description
明細書 往復式圧縮機 技術分野 Description Reciprocating compressor Technical field
こ の発明は例えば斜板式圧縮機、 揺動板式圧縮機等の 往復式圧縮機に関する。 背景技術 The present invention relates to a reciprocating compressor such as a swash plate compressor and an oscillating plate compressor. Background art
従来の斜板式圧縮機は、 シ リ ンダブロ ッ ク と シ リ ンダ へ ッ ド と の間に配置され、 圧縮室と吐出室及び吸入室と を仕切るバルブプレー ト と 、 圧縮室の冷媒ガス を吐出室 に吐出するための吐出ポー ト と、 吸入室の冷媒ガス を圧 縮室に吸入するための吸入ポー ト と、 吐出ポー ト を開閉 する吐出弁 と、 吸入ポー ト を開閉する吸入弁と、 吐出弁 の開き量を抑制するス ト ツ パ と を備える。 A conventional swash plate type compressor is disposed between a cylinder block and a cylinder head, and a valve plate that separates a compression chamber from a discharge chamber and a suction chamber, and discharges refrigerant gas from the compression chamber. A discharge port for discharging into the chamber, a suction port for drawing refrigerant gas from the suction chamber into the compression chamber, a discharge valve for opening and closing the discharge port, and a suction valve for opening and closing the suction port. And a stopper for suppressing the opening amount of the discharge valve.
第 5 図 は従来の斜板式圧縮機のバルブプレー 卜 と弁 シ 一 ト とス ト ツ パプレー ト と を重ねた ときの部分断面図で ある。 FIG. 5 is a partial cross-sectional view of a conventional swash plate compressor in which a valve plate, a valve sheet, and a top plate are stacked.
ノ ルブプレ一 卜 1 0 3 には、 吐出ポー ト 1 0 3 a が形 成されて いる。 A discharge port 103 a is formed in the knob plate 103.
弁シー ト 1 2 7 には吐出ポー ト 1 0 3 a と対向する吐 出弁 1 2 7 a が形成されている。 The valve sheet 127 has a discharge valve 127a opposed to the discharge port 103a.
ス ト ツ パプレー ト 1 2 9 には、 吐出弁 1 2 7 a に対応 する ス ト ツ パ 1 2 9 a が形成されている。 The stop plate 1229 is provided with a stop 1229a corresponding to the discharge valve 127a.
開閉時における吐出弁 1 2 7 a の移動量が大き い場合、
吐出弁 1 2 7 a が 2 点鎖線で示す位置か ら第 5 図の矢印 で示すよ う に移動 してバルブプレー ト 1 0 3 に着座 した と きの衝撃も大き く なるので、 大きな衝撃音が発生する ばか り か、 高速運転時に吐出弁 1 2 7 a が破損する と い う 問題があっ た。 If the displacement of the discharge valve 1 2 7a during opening and closing is large, Since the discharge valve 1 27a moves from the position shown by the two-dot chain line as shown by the arrow in FIG. There was a problem that not only would occur, but the discharge valve 127a would be damaged during high-speed operation.
こ の発明は こ のよ う な事情に鑑みてなされた も ので、 その課題は吐出弁の耐久性に優れ、 騒音が小さ い往復式 圧縮機を提供する こ とであ る。 発明の開示 The present invention has been made in view of such circumstances, and an object thereof is to provide a reciprocating compressor having excellent discharge valve durability and low noise. Disclosure of the invention
前述の課題を解決するため こ の発明の往復式圧縮機は、 シ リ ンダブロ ッ ク と シ リ ンダヘ ッ ド と の間に配置され、 圧縮室と高圧室及び低圧室と を仕切るバルブプレー ト と、 前記圧縮室の冷媒ガス を前記高圧室に吐出するための吐 出ポー ト と 、 前記低圧室の冷媒ガス を前記圧縮室に吸入 するための吸入ポー ト と、 前記吐出ポー ト を開閉する吐 出弁 と、 前記吸入ポー ト を開閉する吸入弁 と 、 前記吐出 弁の開き量を抑制するス ト ツ パ と を備えた往復式圧縮機 において、 前記吐出弁は、 圧縮機運転停止時に、 前記ス ト ッパ と前記バルブプレー ト と の中間に位置 している こ と を特徴とする。 In order to solve the above-mentioned problems, a reciprocating compressor according to the present invention is provided between a cylinder block and a cylinder head to partition a compression chamber from a high-pressure chamber and a low-pressure chamber. A discharge port for discharging the refrigerant gas from the compression chamber to the high-pressure chamber; a suction port for drawing the refrigerant gas from the low-pressure chamber into the compression chamber; and a discharge port for opening and closing the discharge port. A reciprocating compressor comprising: a discharge valve; a suction valve for opening and closing the suction port; and a stopper for suppressing an opening amount of the discharge valve. It is characterized in that it is located between the stopper and the valve plate.
吐出弁は、 圧縮機運転停止時に、 ス ト ツ バ とバルブプ レー 卜 と の中間に位置 している ので、 吐出弁の開閉時、 吐出弁の移動量が小さ く な り 、 吐出弁のバルブプレー ト への着座時の衝撃が緩和される。 その結果、 衝撃音が抑 制される と と も に、 吐出弁の破損を防止でき、 耐久性が
向上する。 When the compressor is stopped, the discharge valve is located between the stop and the valve plate.Therefore, when the discharge valve is opened and closed, the displacement of the discharge valve decreases, and the discharge valve valve The impact at the time of sitting on the vehicle is reduced. As a result, the impact sound is suppressed, and the discharge valve can be prevented from being damaged, and the durability is improved. improves.
こ の発明の往復式圧縮機は、 前記ス ト ツ バ と前記吸入 ポー ト とが同 じプレー ト に形成され、 前記吸入弁の先端 部は、 圧縮機運転停止時に、 前記プレー ト か ら離れてい る こ と を特徴 とする。 In the reciprocating compressor according to the present invention, the stop and the suction port are formed on the same plate, and the tip of the suction valve is separated from the plate when the compressor stops operating. It is characterized by
吸入弁の先端部は、 圧縮機運転停止時に、 ス ト ツ バか ら離れてい る ので、 吸入弁が速く 開弁 し、 圧縮室か ら 吸 入室へ冷媒ガスが流入 し、 圧縮行程後、 吸入行程に入る と きの吐出弁に発生する冷媒ガス の逆流が相殺され、 性 能低下が防止される。 図面の簡単な説明 When the compressor is stopped, the tip of the suction valve is away from the stove, so the suction valve opens quickly, refrigerant gas flows from the compression chamber into the suction chamber, and after the compression stroke, the suction The backflow of the refrigerant gas generated in the discharge valve at the time of entering the stroke is canceled, and the performance is prevented from deteriorating. BRIEF DESCRIPTION OF THE FIGURES
第 1 図は第 4 図 ( a ) の 1 A — 1 A線に沿 う 断面図で ある。 FIG. 1 is a cross-sectional view taken along the line 1A-1A in FIG. 4 (a).
第 2 図は こ の発明の一実施形態に係る斜板式圧縮機の 縦断面図であ る。 FIG. 2 is a longitudinal sectional view of the swash plate compressor according to one embodiment of the present invention.
第 3 図はバルブプレー ト と弁シ一 ト とス ト ツ パプレー ト と を示す分解斜視図であ る。 FIG. 3 is an exploded perspective view showing a valve plate, a valve sheet, and a top plate.
第 4 図 ( a ) はバルブプレー ト と弁シー ト とス ト ッ ノ° プレー ト と を重ねた と きのス ト ツ パプレー 卜 の一部分の 平面図、 第 4 図 ( b ) は第 4 図 ( a ) の 4 B — 4 B線に 沿 う 断面図である。 Fig. 4 (a) is a plan view of a part of the stop plate when the valve plate, valve sheet and stop plate are stacked, and Fig. 4 (b) is Fig. 4 (b). It is sectional drawing which follows the 4B-4B line of (a).
第 5 図は従来の斜板式圧縮機のバルブプレー ト と弁シ 一 ト とス ト ツ パプレー ト と を重ねた ときの断面図であ る。 発明を実施するための最良の形態
以下、 こ の発明の実施の形態を図面に基づいて説明す る。 FIG. 5 is a cross-sectional view of a conventional swash plate type compressor in which a valve plate, a valve sheet, and a top plate are stacked. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第 2 図は こ の発明の一実施形態に係る斜板式圧縮機の 縦断面図であ る。 FIG. 2 is a longitudinal sectional view of the swash plate compressor according to one embodiment of the present invention.
フ ロ ン ト側の シ リ ンダブロ ッ ク 1 と リ ャ側の シ リ ンダ ブロ ッ ク 2 と は互いに軸方向に対向接合されている。 接 合された シ リ ンダブロ ッ ク 1 , 2 の一端にはバルブプレ ー ト 3 、 弁シー ト 2 7 及びス ト ッ パプレー ト (プレー ト) 2 9 を介 してフ ロ ン ト へ ッ ド 4 が固定され、 他端にはバ ルブプレー ト 5 、弁シー ト 2 8 及びス ト ッ パプレー ト(プ レー ト) 3 0 を介 して リ ャヘ ッ ド 6 が固定さ れてレゝる。 The front-side cylinder block 1 and the rear-side cylinder block 2 are axially opposed to each other. One end of the joined cylinder blocks 1 and 2 is connected to the front head 4 via a valve plate 3, a valve sheet 27 and a stop plate (plate) 29. Is fixed, and the other end is fixed to a rear head 6 via a valve plate 5, a valve sheet 28 and a stop plate (plate) 30.
フ ロ ン ト ヘッ ド 4 にフ ロ ン ト側のシェル 1 3 が、 リ ャ ヘ ッ ド 6 に リ ャ側のシェル 1 4 がそれぞれ一体に設け ら れ、 フ ロ ン ト シェル 1 3 と リ ャ側シェル 1 4 とが O リ ン グ 3 8 を介 して軸方向に互いに嵌合 してい る。 フ ロ ン ト ヘッ ド 4 、 シ リ ンダブロ ッ ク 1 , 2 、 シェル 1 3 , 1 4 及びリ ャへ ッ ド 6 は通 しポル ト 3 9 で軸方向に結合さ れ ている。 A front shell 13 is provided integrally with the front head 4 and a rear shell 14 is provided integrally with the rear head 6, and the front shell 13 and the rear shell 13 are provided integrally. The shell 14 is fitted in the axial direction via the O-ring 38. The front head 4, the cylinder blocks 1 and 2, the shells 13 and 14, and the rear head 6 pass through and are axially connected by a port 39.
シ リ ンダブロ ッ ク 1 , 2 の中心部には駆動軸 7 が配設 され、 こ の駆動軸 7 には斜板 8 が固定され、 駆動軸 7 及 び斜板 8 はベア リ ング 9 , 1 0 によ っ て回転可能に支持 されている。 斜板 8 は駆動軸 7 と直交する仮想面に対 し て傾いてレゝる。 A drive shaft 7 is disposed at the center of the cylinder blocks 1 and 2, and a swash plate 8 is fixed to the drive shaft 7. The drive shaft 7 and the swash plate 8 are bearings 9 and 1. It is rotatably supported by 0. The swash plate 8 tilts and lays on an imaginary plane orthogonal to the drive shaft 7.
シ リ ンダブロ ッ ク 1 , 2 には複数のシ リ ンダポア 1 1 が設け られている。 各シ リ ンダポア 1 1 は駆動軸 7 に平 行であっ て、 駆動軸 7 を中心とする 円周方向に所定間隔
おき に配置さ れている。 各シ リ ンダボア 1 1 内には ピス ト ン 1 2 が摺動可能に収容されている。 Each of the cylinder blocks 1 and 2 is provided with a plurality of cylinder pores 11. Each of the cylinder pores 11 is parallel to the drive shaft 7 and has a predetermined interval in a circumferential direction around the drive shaft 7. It is arranged every other. A piston 12 is slidably accommodated in each cylinder bore 11.
各シ リ ンダポア 1 1 内の ピス ト ン 1 2 の両側には圧縮 室 2 1 , 2 2 が形成されている。 ピス ト ン 1 2 はほぼ半 球体状の シュ一 1 9 , 2 0 を介 して斜板に連結さ れ、 ピ ス ト ン 1 2 は斜板 8 の回転に連れて シ リ ンダボア 1 1 内 を往復運動する。 Compression chambers 21 and 22 are formed on both sides of the piston 12 in each cylinder pore 11. The piston 12 is connected to the swash plate through a substantially hemispherical shroud 19, 20, and the piston 12 is provided in the cylinder bore 11 as the swash plate 8 rotates. Reciprocate.
第 3 図はバルブプレー ト と弁シー ト とス ト ッ ノ \°プレー ト と を示す分解斜視図、 第 4 図 ( a ) はバルブプレー ト と弁 シ一 ト と ス ト ツ パプレー ト と を重ねた と きのス ト ツ パプレ一 卜 の一部分の平面図、 第 4 図( b ) は第 4 図 ( a ) の 4 B — 4 B 線に沿う 断面図、 第 1 図は第 4 図 ( a ) の 1 A — 1 A線に沿 う 断面図である。 Fig. 3 is an exploded perspective view showing a valve plate, a valve sheet and a stop plate, and Fig. 4 (a) shows a valve plate, a valve sheet and a stop plate. Fig. 4 (b) is a cross-sectional view taken along line 4B-4B of Fig. 4 (a), and Fig. 1 is a cross-sectional view of a part of the top plate when stacked. FIG. 2 is a cross-sectional view taken along line 1 A-1 A of a).
ほぼ円板状のバルブプレー ト 3 , 5 には、 圧縮室 2 1 , The substantially disk-shaped valve plates 3 and 5 have compression chambers 21 and
2 2 の冷媒ガス を吐出室 (高圧室) 2 4 へ吐出する ため の吐出ポー ト 3 a , 5 a 、 吸入時に吸入弁 2 7 d , 2 8 d を圧縮室 2 1 , 2 2 側へ逃がす吸入弁逃が し孔 3 b , 5 b 及び通 しポル ト 3 9 を挿入するためのポル ト通 し孔Discharge ports 3a and 5a for discharging the refrigerant gas of 22 to the discharge chamber (high-pressure chamber) 24, and the suction valves 27d and 28d are released to the compression chambers 21 and 22 during suction. Suction valve escape holes 3b, 5b and port through holes for inserting through port 39
3 c , 5 c がそれぞれ形成されている。 3 c and 5 c are formed respectively.
吸入弁逃がし孔 3 b , 5 b は、 吸入弁 2 7 d , 2 8 d を介 して吸入ポー ト 2 9 d , 3 0 d に隣接し 、 吸入時に 吸入弁 2 7 d , 2 8 d が開いた と き に吸入ポー ト 2 9 d , 3 0 d と連通する。 The suction valve relief holes 3b and 5b are adjacent to the suction ports 29d and 30d via the suction valves 27d and 28d, respectively, and the suction valves 27d and 28d When opened, it communicates with suction ports 29d and 30d.
ほぼ円板状の弁シー ト 2 7 , 2 8 には、 舌片状の吐出 弁 2 7 a , 2 8 a 及び舌片状の吸入弁 2 7 d , 2 8 d 力 それぞれ切込み形成されている と と も に、 ボル ト通 し孔
2 7 c , 2 8 c が形成されて レ る。 Tongue-shaped discharge valves 27a, 28a and tongue-shaped suction valves 27d, 28d are formed in the substantially disk-shaped valve sheets 27, 28, respectively. With the bolt through hole 27 c and 28 c are formed.
吐出弁 2 7 a , 2 8 a は、 第 1 図 に示すよ う に、 圧縮 機停止時に、 ス ト ッ パ 2 9 a , 3 0 a とノ ルブプレー ト As shown in Fig. 1, when the compressor is stopped, the discharge valves 27a and 28a are connected to the stoppers 29a and 30a and the noble plate.
3 , 5 と の中間に位置 している。 It is located between 3, 5 and.
ほぼ円板状のス ト ツ バプレー ト 2 9 , 3 0 には、 吐出 弁 2 7 a , 2 8 a の開 き量又は変形量を抑制する溝状の ス ト ツ バ 2 9 a , 3 0 a 、 吸入室 (低圧室) 2 3 の冷媒 ガス を圧縮室 2 1 , 2 2 に吸入させるための吸入ポー ト 2 9 d , 3 0 d 及びポル ト通 し孔 2 9 c , 3 0 c がそれ ぞれ形成さ れてい る。 The substantially disk-shaped toe plate 29, 30 has a groove-shaped toe plate 29a, 30 that suppresses the opening or deformation of the discharge valves 27a, 28a. a, suction ports 29 d and 30 d for allowing the refrigerant gas in the suction chamber (low-pressure chamber) 23 to be sucked into the compression chambers 21 and 22, and port through holes 29 c and 30 c are provided. Each is formed.
また、 ス ト ッ パプレー 卜 2 9 , 3 0 には、 ス ト ッ ノ° 2 9 a , 3 0 a の長手方向に沿 う 吐出用孔 2 9 b , 3 0 b が形成されている。 In the stop plates 29 and 30, discharge holes 29b and 30b are formed along the longitudinal direction of the stop holes 29a and 30a.
ノ ルブプレ一 ト 3 , 5 と弁シ一 ト 2 7 , 2 8 とス ト ツ パプレー ト 2 9 , 3 0 と を重ねた とき、 吐出ポー ト 3 a , 5 a に吐出弁 2 7 a , 2 8 a が対向 し、 バルブプレー ト 3 , 5 の吐出ポー ト 3 a , 5 a 及びス ト ッ ノ \°プレー ト 2 9 , 3 0 の吐出用孔 2 9 b , 3 0 b を介 して、 圧縮室 2 1 , 2 2 と吐出室 2 4 とが連通する。 When the nozzle plates 3, 5 and the valve sheets 27, 28 and the top plate 29, 30 are overlapped, the discharge valves 27a, 2a are placed on the discharge ports 3a, 5a. 8a are opposed to each other via the discharge ports 3a and 5a of the valve plates 3 and 5 and the discharge holes 29b and 30b of the stopper \ ° plates 29 and 30. The compression chambers 2 1 and 2 2 communicate with the discharge chamber 24.
次に、 こ の実施形態の斜板式圧縮機の動作を説明する。 駆動軸 7 が回転する と、 斜板 8 も一体に回転する。 斜 板 8 の回転によ り ピス ト ン 1 2 がシ リ ンダポア 1 1 内を 往復運動する。 ピス ト ン 1 2 がバルブプレー ト 3 に最も 近付いた位置 ( ピス ト ン 1 2 が圧縮室 2 1 側で上死点に 位置する と き) か ら 、 斜板 8 が 1 Z 2 回転する と、 ビス ト ン 1 2 がバルブプレー ト 5 側へ移動し 、 圧縮室 2 1 側
では吸入行程が完了 し、 圧縮室 2 2 では圧縮行程、 吐出 行程が終了する。 こ の状態か ら斜板 8 が更に 1 Z 2 回転 する と 、 逆に圧縮室 2 2 で吸入行程が完了 し、 圧縮室 2 1 側で圧縮行程、 吐出行程が終了する。 Next, the operation of the swash plate type compressor of this embodiment will be described. When the drive shaft 7 rotates, the swash plate 8 also rotates integrally. The rotation of the swash plate 8 causes the piston 12 to reciprocate in the cylinder pore 11. When the swash plate 8 rotates 1 Z 2 from the position where piston 12 is closest to the valve plate 3 (when piston 12 is located at the top dead center on the compression chamber 21 side). The piston 12 moves to the valve plate 5 side, and the compression chamber 21 side moves. In, the suction stroke is completed, and in the compression chamber 22, the compression stroke and the discharge stroke are completed. When the swash plate 8 further rotates 1 Z 2 from this state, the suction stroke is completed in the compression chamber 22, and the compression stroke and the discharge stroke are completed in the compression chamber 21.
吸入行程では吸入弁 2 7 d , 2 8 d が吸入弁逃がし孔 In the suction stroke, the suction valves 27 d and 28 d serve as suction valve escape holes.
3 b , 5 側へ弾性変形 し、 吸入ポー ト 2 9 d , 3 0 d 及び吸入弁逃がし孔 3 b , 5 b を通 じて圧縮室 2 1 , 2 2 へ低圧の冷媒ガスが流入する。 It is elastically deformed to the 3b, 5 side, and low-pressure refrigerant gas flows into the compression chambers 21, 22 through the suction ports 29d, 30d and the suction valve relief holes 3b, 5b.
吐出行程では圧縮室 2 1 , 2 2 内で圧縮された冷媒ガ ス によ つ て吐出弁 2 7 a , 2 8 a が吐出室側へ弾性変形 し、 吐出ポー 卜 3 a , 5 a 及び吐出用孔 2 9 b , 3 0 b を通 じて圧縮室 2 1 , 2 2 か ら吐出室 2 4 へ高圧の冷媒 ガスが吐出 さ れる In the discharge stroke, the discharge valves 27a and 28a are elastically deformed toward the discharge chamber by the refrigerant gas compressed in the compression chambers 21 and 22 and the discharge ports 3a and 5a and the discharge ports are discharged. High-pressure refrigerant gas is discharged from the compression chambers 21 and 22 to the discharge chamber 24 through the holes 29b and 30b.
吐出弁 2 7 a , 2 8 a はス ト ッ ノ° 2 9 a , 3 0 a とバ ルブプレ— 卜 3 , 5 と の中間に位置してい る ので、 開閉 動作時、 吐出弁 2 7 a , 2 8 a の移動量が小さ く 、 吐出 弁 2 7 a , 2 8 a のノ ルブプレー ト 3 , 5 への着座時の 衝撃が緩和さ れる。 その結果、 騒音が低減される と と も に、 吐出弁 2 7 a , 2 8 a の破損を防止でき、 耐久性が 向上する Since the discharge valves 27a and 28a are located between the stoppers 29a and 30a and the valve plates 3 and 5, the discharge valves 27a and 28a are opened and closed. The movement amount of 28a is small, and the shock when the discharge valves 27a, 28a are seated on the knob plates 3, 5 is reduced. As a result, noise is reduced, and the discharge valves 27a and 28a can be prevented from being damaged, and durability is improved.
その結果、 衝撃音が抑制される と と も に、 高速運転時 に吐出弁 2 7 a , 2 8 a が破損 し に く く な り 、 吐出弁 2 7 a , 2 8 a (弁シー ト 2 7 , 2 8 ) の耐久性が向上す る。 As a result, the impact noise is suppressed, and the discharge valves 27a and 28a are hardly damaged during high-speed operation, and the discharge valves 27a and 28a (valve sheet 2 The durability of 7, 28) is improved.
また、 吐出弁 2 7 a , 2 8 a は冷媒ガスの吸入行程時 にバルブプレー 卜 3 , 5 側へ引 っ 張 られる ので、 圧縮行
程時に速やかに開弁する。 Also, the discharge valves 27a and 28a are pulled toward the valve plates 3 and 5 during the refrigerant gas suction stroke, so that the compression The valve will open promptly.
その結果、 高圧の冷媒ガスが圧縮室 2 1 , 2 2 か ら 吐 出室 2 4 へ速やかに流れ、冷媒ガス の過圧縮が抑制され、 消費動力が低減する。 As a result, the high-pressure refrigerant gas quickly flows from the compression chambers 21 and 22 to the discharge chamber 24, suppressing overcompression of the refrigerant gas and reducing power consumption.
なお、 上記実施形態では吐出弁 2 7 a , 2 8 a を、 ス ト ツ パ 2 9 a , 3 0 a と吐出ポ一 ト 3 a , 5 a との中間 に配置 したので、 吸入行程時の初期では、 吐出弁 2 7 a , 2 8 a が閉弁する前に高圧の冷媒ガスが圧縮室 2 1 , 2 2 へ逆流 し、 性能が低下するおそれがあ る。 In the above embodiment, the discharge valves 27a and 28a are arranged in the middle between the stoppers 29a and 30a and the discharge ports 3a and 5a. At the beginning, before the discharge valves 27a and 28a close, the high-pressure refrigerant gas flows back into the compression chambers 21 and 22 and the performance may be reduced.
こ の問題を解決する には、組立状態時の吸入弁 2 7 d , 2 8 d の先端部をス ト ツ パプレー ト 2 9 , 3 0 か ら離れ る よ う に曲げておけばよ い。 こ の構成を採用すれば、 吐 出室 2 4 か ら圧縮室 2 1 , 2 2 に逆流 した高圧の冷媒ガ スが吸入室 2 3 に流出 し、 吸入弁 2 7 d , 2 8 d が早 く 開弁する ので、 性能の低下を抑える こ とができ る。 To solve this problem, the tip of the suction valve 27d, 28d in the assembled state should be bent so as to be away from the top plate 29, 30. With this configuration, the high-pressure refrigerant gas flowing backward from the discharge chamber 24 to the compression chambers 21 and 22 flows out to the suction chamber 23, and the suction valves 27d and 28d are quickly discharged. Since the valve opens very well, performance degradation can be suppressed.
なお、 上記実施形態においては、 本願発明を シェル付 きの斜板式圧縮機に適用 したが、 シェルを持たない構造 の も の に適用する こ と も でき る 。 産業上の利用可能性 In the above embodiment, the invention of the present application is applied to a swash plate compressor with a shell. However, the invention can be applied to a compressor without a shell. Industrial applicability
以上のよ う に、 本発明に係る往復式圧縮機は、 自動車 用空気調和装置の冷媒圧縮機と して有用であ る。
As described above, the reciprocating compressor according to the present invention is useful as a refrigerant compressor for an air conditioner for a vehicle.
Claims
1 . シ リ ンダブロ ッ ク と シ リ ンダヘッ ド と の間に配置 さ れ、 圧縮室 と高圧室及び低圧室と を仕切るバルブプレ — 卜 と、 1. A valve plate that is arranged between the cylinder block and the cylinder head and separates the compression chamber from the high-pressure chamber and the low-pressure chamber;
前記圧縮室の冷媒ガス を前記高圧室に吐出するための 吐出ポー ト と、 A discharge port for discharging the refrigerant gas from the compression chamber to the high-pressure chamber;
前記低圧室の冷媒ガス を前記圧縮室に吸入するための 吸入ポー ト と 、 A suction port for sucking the refrigerant gas in the low-pressure chamber into the compression chamber;
前記吐出ポー ト を開閉する吐出弁と、 A discharge valve for opening and closing the discharge port;
前記吸入ポー ト を開閉する吸入弁 と、 A suction valve for opening and closing the suction port;
前記吐出弁の開き量を抑制するス ト ツ バ と を備えた往 復式圧縮機において、 A reciprocating compressor comprising: a stove that suppresses an opening amount of the discharge valve;
前記吐出弁は、 圧縮機運転停止時に、 前記ス ト ツ バ と 前記バルブプレー ト との中間に位置 している こ と を特徴 とする往復式圧縮機。 The reciprocating compressor, wherein the discharge valve is located at an intermediate position between the stop and the valve plate when the operation of the compressor is stopped.
2 . 前記ス ト ツ バ と前記吸入ポー ト とが同 じ プレー ト に形成され、 前記吸入弁の先端部は、 圧縮機運転停止時 に、 前記プレー ト か ら離れている こ と を特徴 とする請求 の範囲第 1 項記載の往復式圧縮機。
2. The stop and the suction port are formed in the same plate, and the tip of the suction valve is separated from the plate when the compressor operation is stopped. The reciprocating compressor according to claim 1, wherein:
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP9352357A JPH11173269A (en) | 1997-12-05 | 1997-12-05 | Reciprocating compressor |
JP9/352357 | 1997-12-05 |
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WO1999030036A1 true WO1999030036A1 (en) | 1999-06-17 |
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PCT/JP1998/005482 WO1999030036A1 (en) | 1997-12-05 | 1998-12-04 | Reciprocating compressor |
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WO (1) | WO1999030036A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2869956A1 (en) * | 2004-05-10 | 2005-11-11 | Sanden Corp | INCLINED PLATE TYPE COMPRESSORS AND AIR CONDITIONING SYSTEMS COMPRISING THESE COMPRESSORS |
US7208483B2 (en) | 1999-01-08 | 2007-04-24 | Emisphere Technologies, Inc. | Polymeric delivery agents and delivery agent compounds |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3933020B2 (en) * | 2001-09-28 | 2007-06-20 | Jfeスチール株式会社 | Stainless steel with excellent fatigue characteristics and toughness of fillet welded joints when forming fillet welded joints |
JP2009091932A (en) * | 2007-10-05 | 2009-04-30 | Sanden Corp | Compressor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0791376A (en) * | 1993-09-22 | 1995-04-04 | Toyota Autom Loom Works Ltd | Valve device of compressor |
JPH0874735A (en) * | 1994-09-06 | 1996-03-19 | Sanden Corp | Compressor |
-
1997
- 1997-12-05 JP JP9352357A patent/JPH11173269A/en active Pending
-
1998
- 1998-12-04 WO PCT/JP1998/005482 patent/WO1999030036A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0791376A (en) * | 1993-09-22 | 1995-04-04 | Toyota Autom Loom Works Ltd | Valve device of compressor |
JPH0874735A (en) * | 1994-09-06 | 1996-03-19 | Sanden Corp | Compressor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7208483B2 (en) | 1999-01-08 | 2007-04-24 | Emisphere Technologies, Inc. | Polymeric delivery agents and delivery agent compounds |
US7727558B2 (en) | 1999-01-08 | 2010-06-01 | Emisphere Technologies, Inc. | Polymeric delivery agents and delivery agent compounds |
FR2869956A1 (en) * | 2004-05-10 | 2005-11-11 | Sanden Corp | INCLINED PLATE TYPE COMPRESSORS AND AIR CONDITIONING SYSTEMS COMPRISING THESE COMPRESSORS |
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JPH11173269A (en) | 1999-06-29 |
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