KR20100033216A - Swash plate type compressor - Google Patents

Abstract

PURPOSE: A swash plate type compressor is provided to minimize a dead volume of a compression space by transferring a refrigerant to the inside of a cylinder bore using a plate rotary valve. CONSTITUTION: A swash plate type compressor comprises a cylinder block(110), a front housing(120), a rear housing(130), a rotary shaft(140), a piston(115), and a plate rotary valve(160). The cylinder block includes a center bore(111) and plural cylinder bores(113). The front housing forms a crank chamber(121) while being installed on the front end of the cylinder block. The rear housing includes a discharge chamber(131) and a suction chamber(133) while being installed in the rear end of the cylinder block. The rotary shaft is installed through the center bore and the crank chamber to rotate. A swash plate(148) is installed on the rotary shaft to rotate with the rotary shaft.

Description

Swash plate type compressor {Swash plate type compressor}

The present invention relates to a swash plate compressor, and more particularly, to a swash plate compressor for compressing a refrigerant by linearly reciprocating a plurality of pistons respectively provided on a plurality of cylinder bores of a cylinder block using a swash plate installed on a rotating shaft.

Looking briefly at the air conditioning system of the vehicle, first, the refrigerant of the high temperature low pressure gas state is brought into the high temperature high pressure gas state by the compressor. The refrigerant in the high temperature and high pressure gas state becomes a high temperature high pressure liquid state by a condensation action of the condenser via a condenser, and the refrigerant in the high temperature and high pressure liquid state becomes a low temperature low pressure liquid state by a throttling action of the expansion valve through an expansion valve. do. The refrigerant in the low temperature low pressure liquid state is returned to the high temperature low pressure gas state through heat exchange in the evaporator through the evaporator, and the high temperature low pressure gas is compressed by the compressor to become a high temperature high pressure gas state. By repeating this process, the vehicle air conditioning system is operated.

Compressors for compressing a refrigerant include a reciprocating type that actually compresses a working fluid, a reciprocating type that performs compression while reciprocating, and a rotary type that performs compression while rotating.

The reciprocating type includes a crank type for transmitting the driving force of the drive source to the plurality of pistons using a crank, a swash plate type for transmitting using a rotating shaft provided with a swash plate, and a wobble plate type using a wobble plate. Rotary type includes vane rotary type using rotary rotary shaft and vane, and scroll type using rotary scroll and fixed scroll.

1 shows a configuration of a variable displacement swash plate compressor according to the prior art. According to this, the swash plate compressor 1 is provided with a cylinder block 10. The cylinder block 10 forms part of the appearance and skeleton of the compressor 1. A center bore 11 is formed through the center of the cylinder block 10. The center bore 11 is a portion in which the rotating shaft 40 to be described below is rotatably installed.

A plurality of cylinder bores 13 are formed to radially penetrate the center bore 11 and penetrate the cylinder block 10. The communication path 14 is formed so that the cylinder bore 13 and the center bore 11 communicate with each other. The communication path 14 becomes a passage for transferring the refrigerant to the cylinder bore 13.

 The piston 15 is installed inside the cylinder bore 13 to enable a straight reciprocating motion. The piston 15 has a cylindrical shape, and the cylinder bore 13 has a cylindrical shape corresponding thereto. One end portion of the piston 15, that is, a portion 17 protruding to the outside of the cylinder bore 13 is formed with a connecting portion 17. The piston 15 compresses the refrigerant while linearly reciprocating in the cylinder bore 13.

One front housing 20 is installed at one end of the cylinder block 10. The front housing 20 is recessed to face the cylinder block 10 to form a crank chamber 21 together with the cylinder block 10. The crank chamber 21 is kept airtight with the outside.

A pulley shaft part 22 in which a pulley (not shown) is rotatably installed on the opposite side of the cylinder block 10 is formed to protrude from the front housing 20. A shaft hole 23 is formed by penetrating the center of the pulley shaft portion 22 and penetrating the front housing 20 back and forth to the crank chamber 21. The shaft hole 23 is formed to coincide with the center bore 11. One end of the rotation shaft 40 is rotatably supported by the shaft hole 23.

The rear housing 30 is installed at the other end of the cylinder block 10, that is, on the opposite side to which the front housing 20 is installed. The rear housing 30 is formed with a discharge chamber 31 in selective communication with the cylinder bore 13. The discharge chamber 31 is formed along an edge of a surface of the rear housing 30 facing the cylinder block 10. The discharge chamber 31 is a place where the refrigerant compressed in the cylinder bore 13 is discharged and temporarily stays.

The rear housing 30 has a suction chamber 33 is formed. The suction chamber 33 is also in selective communication with the cylinder bore 13. The suction chamber 33 is formed in an area corresponding to the center of the surface of the rear housing 30 facing the cylinder block 10. The suction chamber 33 serves to deliver the refrigerant to be compressed into the cylinder bore 13. The suction chamber 33 transfers the refrigerant to the communication path 14 through a flow path 41 formed in the rotary shaft 40 to be described below. Reference numeral 33 ′ serves as a suction port to transfer the refrigerant from the outside of the compressor 10 to the suction chamber 33.

The bolt 37 is fastened through to fasten the cylinder block 10, the front housing 20, and the rear housing 30 to each other. A plurality of bolts 37 are fastened through the edges of the cylinder block 10, the front housing 20, and the rear housing 30 simultaneously.

The rotating shaft 40 is rotatably installed through the center bore 11 of the cylinder block 10 and the shaft hole 23 of the front housing 20. The rotating shaft 40 is rotated by the driving force transmitted from the engine. The rotating shaft 40 is rotatably supported by a bearing 42 installed in the front housing 20. The flow path 41 is formed inside the rotation shaft 40. The flow passage 41 is opened to the rear end of the rotation shaft 40 to communicate with the suction chamber 33. An outlet 41 ′ is formed in the flow path 41 to selectively communicate with the communication path 14. The outlet 41 ′ is opened to the outer circumferential surface of the rotation shaft 40 and selectively communicates with the communication path 14.

The rotor 44 is installed on the rotation shaft 40. The rotor 44 is installed in the crank chamber 21 so that the rotating shaft 40 passes through the center and rotates integrally with the rotating shaft 40. The rotor 44 is fixed to the rotating shaft 40 in a substantially disk shape is installed. The hinge arm 46 protrudes from one surface of the rotor 44. A hinge slot 47 is formed in the hinge arm 46.

The swash plate 48 is installed on the rotation shaft 40. The swash plate 48 is formed to protrude a connecting arm 49 is connected to the hinge arm 46 of the rotor 44. A hinge pin 49 'is installed at a distal end of the connecting arm 49 in a direction orthogonal to the longitudinal direction of the connecting arm 49. The hinge pin 49' is a hinge arm 46 of the rotor 44. It is movably hung on the hinge slot 47 formed at the tip of the head.

The swash plate 48 is hinged and rotated together with the rotor 44. The swash plate 48 is installed so that the angle is variable on the rotation shaft 40, between the state orthogonal to the longitudinal direction of the rotation shaft 40 and inclined at a predetermined angle with respect to the rotation shaft 40 To be in position.

The radial shaft spring 50, which is a coil spring, is installed on the rotary shaft 40 to surround the rotary shaft 40. The radial yarn spring 50 exerts an elastic force between the rotor 44 and the swash plate 48. The radial yarn spring 50 exerts an elastic force in a direction in which the inclination angle of the swash plate 48 decreases, and absorbs a force acting on the swash plate 48 when the compressor 1 is stopped. do.

The swash plate 48 has its edge connected via the pistons 15 and the shoe 52. That is, the edge of the swash plate 48 is connected to the connecting portion 17 of the piston 15 through the shoe 52 so that the piston 15 is rotated in the cylinder bore 13 by the rotation of the swash plate 48. Make a straight reciprocating movement.

A valve assembly 53 is provided between the cylinder block 10 and the rear housing 30 to control the flow of the refrigerant between the discharge chamber 31 and the cylinder bore 13. The valve assembly 53 is composed of a valve plate 54 and a discharge lead 56 having a discharge hole 54 ′, which controls the flow of refrigerant from the cylinder bore 13 to the discharge chamber 31.

Hereinafter, the operation of the swash plate compressor according to the prior art having the configuration as described above will be described.

The driving force of the engine is transmitted to the rotary shaft 40 to rotate the rotary shaft 40. When the rotation shaft 40 is rotated, the rotor 44 rotates together, and the swash plate 48 rotates together by the rotor 44. Rotation of the swash plate 48 is transmitted to the piston 15 through the shoe 52.

Accordingly, the piston 15 compresses the refrigerant while linearly reciprocating in the cylinder bore 13. At this time, the stroke distance of the piston 15 is determined according to the angle of the swash plate 48. The angle of the swash plate 48 may be adjusted by the pressure of the refrigerant delivered into the crank chamber 21.

On the other hand, it will be described that the refrigerant is delivered into the cylinder bore (13). The refrigerant is sucked from the outside through the suction port 33 ′ to the suction chamber 33, and the refrigerant transferred to the suction chamber 33 is transferred to the flow path 41 of the rotary shaft 40. Refrigerant delivered to the flow path 41 is each by the outlet 41 'is sequentially communicated with each cylinder bore 13 and each communication path 14 in accordance with the rotation of the rotary shaft 40 It is delivered to the cylinder bore (13).

The refrigerant compressed and delivered to the cylinder bore 13 is delivered to the discharge chamber 31 by the valve assembly 53 and to the outside of the compressor 10. That is, when the refrigerant is compressed and the pressure inside the cylinder bore 13 becomes large, the tip of the discharge lead 56 is pushed by the pressure, and the discharge hole 54 'is opened to open the inside of the cylinder bore 13. Discharges the coolant into the discharge chamber 31.

For reference, as the refrigerant is sucked into the cylinder bore 13, the pressure in the cylinder bore 13 drops while the piston 15 moves to the bottom dead center, and the rotating shaft 40 through the communication path 14. This is because the inner flow passage 41 and the cylinder bore 13 communicate with each other.

However, the above-described conventional techniques have the following problems.

In the compressor that delivers and compresses the refrigerant to the cylinder bore 13 through the flow path 41 formed on the rotating shaft 40 as described above, the communication path 14 becomes dead volume, which lowers the efficiency of the compressor. There is this.

On the other hand, in a compressor using a plate-type rotary valve, such as US Patent No. 5,562,425 to minimize the dead volume, the front of the rotary valve is rubbed with the valve plate, the rear is a seal and friction is installed in the housing of the rear housing Should be. Therefore, in order to drive a plate-type rotary valve, a lot of power must be lost, and the wear of the rotary valve is large and there is a problem in durability.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, to provide a swash plate compressor that can minimize the dead volume.

Another object of the present invention is to provide a swash plate compressor which can minimize the friction of the valve for supplying the refrigerant to the cylinder bore while minimizing the dead volume.

According to a feature of the present invention for achieving the object as described above, the present invention is a cylinder block formed through the center and a plurality of cylinder bores formed around the center bore, and the front end of the cylinder block A front housing which is installed to form a crank chamber therein, a rear housing which is installed at a rear end of the cylinder block and has a discharge chamber and a suction chamber formed therein, and is installed and rotated through the center bore and the crank chamber to be rotated. A swash plate is installed so that the swash plate is rotated together, the rotary shaft is provided with an interlocking pin eccentrically at the center of rotation and the piston for receiving the rotation of the rotary shaft through the swash plate to compress the refrigerant in the cylinder bore, respectively. And a plate rotary valve having a suction opening for selectively communicating the cylinder bore with the suction chamber. In the swash plate-type compressor comprising a, the plate rotary valve is supported by a plurality of support balls in the suction chamber and is pivoted to draw a circular trajectory by the interlocking pin of the rotary shaft.

The plate rotary valve is in close contact with the valve plate is formed in the suction hole is in communication with the cylinder bore and the other side is formed with a groove in which the support ball is seated is supported by the support ball on the inner surface of the suction chamber is rotated.

In the swash plate compressor according to the present invention having such a configuration, the following effects can be obtained.

In the present invention, since the plate-shaped plate rotating valve is used to transfer the refrigerant into the cylinder bore, there is an effect of minimizing the dead volume of the compression space in the cylinder bore.

In addition, in the present invention, since the plate rotating valve is rotatably supported by using a plurality of balls, the area in which the plate rotating valve is rubbed with the surrounding parts is minimized, thereby minimizing wear of the plate rotating valve and improving durability of the plate rotating valve. There is.

In addition, since the plate rotary valve is supported and operated by a plurality of balls, the input for the rotation of the plate rotary valve can be minimized, thereby increasing the efficiency of the compressor.

Hereinafter, the configuration of a preferred embodiment of the swash plate compressor according to the present invention will be described in detail with reference to the accompanying drawings.

2 shows a configuration of a preferred embodiment of the swash plate compressor according to the present invention. According to this, the swash plate compressor 100 is provided with a cylinder block 110. The cylinder block 110 forms part of an appearance and a skeleton of the compressor 100. A center bore 111 is formed through the center of the cylinder block 100. The center bore 111 is a portion in which the rotating shaft 140 to be described below is rotatably installed.

A plurality of cylinder bores 113 are formed to radially penetrate the center bore 111 and penetrate the cylinder block 110. The piston 115 is installed inside the cylinder bore 113 to enable a straight reciprocating motion. The piston 115 is cylindrical and the cylinder bore 113 is a cylindrical space corresponding thereto. One end portion of the piston 115, that is, a portion protruding to the outside of the cylinder bore 113 is formed with a connecting portion 117. The piston 115 compresses the refrigerant while linearly reciprocating in the cylinder bore 113.

The front housing 120 is installed at one end of the cylinder block 110. The front housing 120 has a concave side facing the cylinder block 110 to form a crank chamber 121 together with the cylinder block 110. The crank chamber 121 is kept airtight with the outside.

A pulley shaft portion 122 in which the pulley (not shown) is rotatably installed is formed on the opposite side of the cylinder block 110 of the front housing 120 to protrude. The shaft hole 123 is formed by penetrating the center of the pulley shaft portion 122 and penetrating the front housing 120 back and forth to the crank chamber 121. The shaft hole 123 is formed to coincide with the center bore 111. One end of the rotating shaft 140 is rotatably supported by the shaft hole 123.

The other end of the cylinder block 110, that is, the rear housing 130 is installed on the opposite side where the front housing 120 is installed. The rear housing 130 is formed with a discharge chamber 131 in selective communication with the cylinder bore 113. The discharge chamber 131 is formed along an edge of a surface of the rear housing 130 that faces the cylinder block 110. In particular, the discharge chamber 131 is formed along a position adjacent to the outer peripheral side edge of the rear housing 130. The discharge chamber 131 is a place where the refrigerant compressed in the cylinder bore 113 is discharged and temporarily stays.

A suction chamber 133 is formed in the rear housing 130. The suction chamber 133 also selectively communicates with the cylinder bore 113. The suction chamber 133 is formed in an area corresponding to the center of the surface of the rear housing 130 facing the cylinder block 110. The suction chamber 133 serves to deliver a refrigerant to be compressed into the cylinder bore 113. In this embodiment, the suction port for transferring the refrigerant from the outside to the suction chamber 133 is not shown.

The bolt 137 penetrates and fastens the cylinder block 110, the front housing 120, and the rear housing 130 to be fastened to each other. A plurality of bolts 137 penetrates through the edges of the cylinder block 110, the front housing 120, and the rear housing 130 simultaneously.

The rotating shaft 140 is rotatably installed through the center bore 111 of the cylinder block 110 and the shaft hole 123 of the front housing 120. The rotating shaft 140 is rotated by the driving force transmitted from the engine. The rotation shaft 140 is rotatably supported by a bearing 142 installed on the front housing 120. The rear end of the rotary shaft 140 is provided with an interlocking pin 141. The interlocking pin 141 serves to pivot the plate rotating valve 160 to be described below. The interlocking pin 141 has a center at a position eccentrically away from the rotation center of the rotation shaft 140 to draw a predetermined circular trajectory by the rotation of the rotation shaft 140. In this embodiment, the interlocking pin 141 is located in the area of the cross section of the rotation shaft 140, as shown in FIG. That is, when the rotary shaft 140 is viewed in the longitudinal direction at one end, it does not protrude to the outer circumferential surface of the rotary shaft 140 but extends in the longitudinal direction of the rotary shaft 140.

The rotor 144 is installed on the rotation shaft 140. The rotor 144 is installed in the crank chamber 121 so that the rotating shaft 140 passes through the center and rotates integrally with the rotating shaft 140. The rotor 144 is fixed to the rotating shaft 140 in a substantially disk shape is installed. The hinge arm 146 protrudes from one surface of the rotor 144.

The swash plate 148 is installed on the rotation shaft 140. The swash plate 148 is formed by projecting a connecting arm 149 hinged to the hinge arm 146 of the rotor 144. The connecting arm 149 is connected at the distal end by the hinge arm 146 and the hinge structure 149 '. Thus, the swash plate 148 is hinged to the rotor 144 is rotated together.

The swash plate 148 is installed so that the angle is variable on the rotating shaft 140, between the state orthogonal to the longitudinal direction of the rotating shaft 140 and inclined at a predetermined angle with respect to the rotating shaft 140 To be in position.

The radial shaft spring 150, which is a coil spring, is installed on the rotary shaft 140 to surround the rotary shaft 140. The radial yarn spring 150 exerts an elastic force between the rotor 144 and the swash plate 148. The radial yarn spring 150 exerts an elastic force in a direction in which the inclination angle of the swash plate 148 decreases, and absorbs a force acting on the swash plate 148 when the compressor 100 is stopped. do.

The swash plate 148 has an edge thereof connected to the pistons 115 and the shoe 152. That is, the edge of the swash plate 148 is connected to the connecting portion 117 of the piston 115 through the shoe 152 so that the piston 115 is rotated in the cylinder bore 113 by the rotation of the swash plate 148. Make a straight reciprocating movement.

A valve assembly 153 is provided between the cylinder block 110 and the rear housing 130 to control the flow of the refrigerant between the discharge chamber 131 and the cylinder bore 113. The valve assembly 153 is constituted by a valve plate 154 and a discharge lead 156 having a discharge hole 154 ′, which controls the flow of refrigerant from the cylinder bore 113 to the discharge chamber 131.

In the valve plate 154, the discharge hole 154 ′ and the suction hole 155 are drilled at positions corresponding to the respective cylinder bores 113. The discharge hole 154 ′ is a path through which the compressed refrigerant exits the discharge chamber 131, and the suction hole 155 is a path through which the refrigerant is transferred from the suction chamber 133 to the cylinder bore 113. Becomes

Next, a plate rotating valve 160 for controlling refrigerant intake into the cylinder bore 113 is installed in the suction chamber 133. The plate rotary valve 160 is formed in a substantially disk shape, and is rotated to draw a predetermined circular trajectory by the rotation of the rotary shaft 140 by an interlocking pin 141 provided at the rear end of the rotary shaft 140. It works. The plate rotary valve 160 is formed by a plurality of grooves 164 grooves. The ball recess 164 is formed on a surface facing the rear housing 130. The ball groove 164 is mounted to the support ball 170 to be described below.

The plate rotating valve 160 is formed with suction openings 166: 166a, 166b, and 166c selectively communicating with the suction hole 155 formed in the valve plate 154. The suction opening 166 is formed through the plate rotating valve 160. The suction opening 166 is formed by the number of the cylinder bores 113. Therefore, the suction opening 166 is disposed in a circular shape on the plate rotary valve 160, as the cylinder bore 113 is arranged in a circular shape around the center bore (111).

The support ball 170 is seated in the ball recess 164. The support ball 170 serves to smoothly rotate while supporting the plate rotating valve 160. An inner surface of the suction chamber 133 of the rear housing 130 may be formed with a guide channel (not shown) for guiding the support ball 170 to move.

Hereinafter, the operation of the swash plate compressor according to the present invention having the configuration as described above will be described.

The driving force of the engine is transmitted to the rotary shaft 140 to rotate the rotary shaft 140. When the rotation shaft 140 is rotated, the rotor 144 rotates together, and the swash plate 148 rotates together by the rotor 144. Rotation of the swash plate 148 is transmitted to the piston 115 through the shoe 152.

Accordingly, the piston 115 compresses the refrigerant while linearly reciprocating in the cylinder bore 113. At this time, the stroke distance of the piston 115 is determined according to the angle of the swash plate 148. The angle of the swash plate 148 may be adjusted by the pressure of the refrigerant delivered into the crank chamber 121.

On the other hand, it will be described that the refrigerant is delivered into the cylinder bore (113). The refrigerant is sucked into the suction chamber 133 from the outside through the suction port, and the refrigerant delivered to the suction chamber 133 is sucked through the suction opening 166 of the plate rotating valve 160. ) Is sucked into the cylinder bore (113) in communication with.

At this time, the refrigerant is sucked into the cylinder bore 113, the piston 115 is moved to the bottom dead center in the cylinder bore 113, the pressure inside the cylinder bore 113 drops, and the plate rotary valve ( The suction opening 166 of the 160 is possible by communicating with the suction hole 155 of the cylinder bore 113.

Here, it will be described that the plate rotating valve 160 is driven to suck the refrigerant in the suction chamber 133 into each cylinder bore 113. The plate rotary valve 160 is operated together by the rotation of the rotary shaft 140. That is, the plate rotation valve 160 is idle to draw a predetermined circular trajectory because the linking pin 141 of the rotary shaft 140 is formed at a predetermined distance away from the rotation center of the rotary shaft 140. In addition, the plate rotating valve 160 does not rotate with respect to the interlocking pin 141.

On the other hand, the suction opening 166 is sequentially communicated with the suction hole 155 of each cylinder bore 113 will be described by comparing with FIG. 4 is a state in which the communication state between the suction opening 166 and the suction hole 155 is changed by further rotating the rotation shaft 140 in the state of FIG. As shown in FIG. 4, when the rotation shaft 140 rotates in the direction of arrow A, the plate rotation valve 160 is pivoted by drawing the circular locus in the direction of arrow B by the interlocking pin 141. Therefore, when comparing the state shown in FIG. 3 with the state shown in FIG. 4, the suction opening 166a is another suction hole adjacent to the rotational direction of the plate rotation valve 160 in the suction hole 155 which has been communicated with FIG. 3. In communication with 155, the refrigerant is delivered to the corresponding cylinder bore 113. In this case, the other suction openings 166b and 166c adjacent to the suction opening 166a are partially in communication with the suction hole 155 adjacent to the suction opening 155a, respectively. Therefore, the refrigerant is also sucked into the cylinder bores 113 corresponding to the suction holes 155 communicating with the suction openings 166a, 166b, and 166c, respectively. At this time, the compression and discharge operations are performed in the cylinder rod 113 corresponding to the other suction hole 155.

As shown in Figure 4, the suction opening 166a is in communication with the suction hole 155 adjacent in the rotational direction of the plate rotation valve 160, the suction stroke is made in the corresponding cylinder bore (113). Of course, each of the cylinder bores 113 corresponding to the suction hole 155 communicating with the suction openings 166b and 166c adjacent to the suction opening 166a is also subjected to the suction stroke.

In this manner, the suction stroke is made to the cylinder bore 113 and the cylinder bore 113 adjacent thereto corresponding to the suction hole 155 communicating with the suction opening 166a, and the plate rotation valve 160 rotates. By the suction stroke is sequentially made in each cylinder bore 113, and the compression and discharge stroke is made in the remaining cylinder bores (113).

As described above, when the plate rotary valve 160 moves by drawing the circular trajectory by the rotation of the rotary shaft 140, the suction opening 166 of the plate rotary valve 160 is each cylinder bore ( In order to coincide with the suction hole 155 of 113, the suction chamber 133 and each of the cylinder bores 113 are sequentially communicated. As a result, the refrigerant is delivered to each cylinder bore 113. For reference, as shown in FIG. 3, suction is performed in the first cylinder bore 113 ′ and the second cylinder bore 113 ″, and compression or discharge is performed in the rest.

On the other hand, the plate rotary valve 160 is rotated by the rotary shaft 140, one surface is in close contact with the valve plate 154, the other surface is supported by the support ball 170. The support ball 170 serves to rotatably support the plate rotating valve 160 with respect to the inner surface of the suction chamber 133 of the rear housing 130. As such, by rotatably supporting the plate rotating valve 160 using the plurality of support balls 170, the driving force for driving the plate rotating valve 160 may be minimized.

The refrigerant delivered to the cylinder bore 113 and compressed by the piston 115 is delivered to the discharge chamber 131 by the valve assembly 153 and is transferred to the outside of the compressor 100. That is, when the refrigerant is compressed to increase the pressure inside the cylinder bore 113, the discharge lead 156 opens the discharge hole 154 ′ to discharge the refrigerant into the discharge chamber 131 inside the cylinder bore 113. It is.

The scope of the invention is defined not by the embodiments described above and shown in the drawings, but as defined in the claims. And it is apparent to those skilled in the art that various modifications and adaptations can be made to those skilled in the art without departing from the scope of the claims. Do.

1 is a cross-sectional view showing the internal configuration of a swash plate compressor according to the prior art.

2 is a cross-sectional view showing the internal configuration of a preferred embodiment of the swash plate compressor according to the present invention.

Figure 3 is a front view showing the configuration of a plate rotary valve constituting an embodiment of the present invention.

Figure 4 is an operating state showing that the swash plate compressor of the embodiment of the present invention is operated.

Explanation of symbols on the main parts of the drawings

100: compressor 110: cylinder block

111: center bore 113: cylinder bore

115: piston 117: connecting portion

120: front housing 121: crankcase

122: pulley shaft portion 123: shaft hole

130: rear housing 131: discharge chamber

133: suction chamber 140: rotation axis

141: interlocking pin 142: bearing

144: rotor 146: hinge arm

148: Saphan 149: connecting arm

149 ': Hinge structure 150: Radial yarn spring

152: shoe 153: valve assembly

154: valve plate 154 ': discharge hole

155: suction hole 156: discharge lead

160: plate rotary valve 162: interlocking hole

164: ball groove 166: suction opening

170: support ball

Claims (2)

A center block 111 formed through the center and having a plurality of cylinder bores 113 centered on the center bore 111; A front housing 120 installed at the front end of the cylinder block 110 to form a crank chamber 121 therein; A rear housing 130 installed at a rear end of the cylinder block 110 and having a discharge chamber 131 and a suction chamber 133 formed therein; Interlocking pins 141 rotated and installed through the center bore 111 and the crank chamber 121, and the swash plate 148 is installed to be positioned in the crank chamber 121, rotated together, and eccentrically rotated at one end thereof. Rotating shaft 140 is provided, and Piston 115 for receiving the rotation of the rotary shaft 140 through the swash plate 148 to compress the refrigerant in the cylinder bore 113, respectively; In the swash plate compressor comprising a plate rotary valve 160 having a suction opening 166 for selectively communicating the cylinder bore 113 and the suction chamber 133, The plate rotating valve 160 is supported by the plurality of support balls 170 in the suction chamber 133 is installed and is rotated to draw a circular trajectory by the interlocking pin 141 of the rotating shaft 140. Swash plate compressor. According to claim 1, The plate rotary valve 160 is one surface is in close contact with the valve plate 154 is formed with a suction hole 154 'is in communication with the cylinder bore 113, the other side the support ball 170 is The swash plate-type compressor, characterized in that the ball groove 164 is seated is supported by the support ball 170 on the inner surface of the suction chamber 133 is rotated.

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