JPH0552108A - Gasket structure having orifice function - Google Patents

Gasket structure having orifice function

Info

Publication number
JPH0552108A
JPH0552108A JP21237991A JP21237991A JPH0552108A JP H0552108 A JPH0552108 A JP H0552108A JP 21237991 A JP21237991 A JP 21237991A JP 21237991 A JP21237991 A JP 21237991A JP H0552108 A JPH0552108 A JP H0552108A
Authority
JP
Japan
Prior art keywords
oil
cylinder head
gasket
oil passage
end surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21237991A
Other languages
Japanese (ja)
Inventor
Yoshizo Takatsu
喜造 高津
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP21237991A priority Critical patent/JPH0552108A/en
Publication of JPH0552108A publication Critical patent/JPH0552108A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/0868—Aspects not related to the edges of the gasket

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Gasket Seals (AREA)

Abstract

PURPOSE:To reduce a working cost by eliminating an oil reservoir provided on the end surface of a cylinder head, in a system where an orifice for adjusting the amount and pressure of oil supplied to a valve system, is formed on a gasket sandwiched between the end surface of a cylinder block and the end surface of a cylinder head. CONSTITUTION:A notch 8 formed on a gasket 2 is provided with an oil supplying hole 13 connected to the oil passage of a cylinder block, an oil discharging hole 14 communicated with the oil passage of a cylinder head, and a connecting part 15 for connecting the oil supplying hole 13 to the oil discharging hole 14, and the connecting part 15 is sandwiched between the cylinder block and the cylinder head so as to construct an orifice 16. There is no necessity to form an oil reservoir on the end surface of the cylinder head opposing to the oil supplying hole 13, since oil passes through the connecting part 15 in the direction vertical to the thickness direction of the gasket 2.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、内燃機関のシリンダブ
ロックとシリンダヘッド間に挟持されるガスケットにオ
イルを調量・調圧するオリフィス機能を持たせたガスケ
ット構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gasket structure in which a gasket sandwiched between a cylinder block and a cylinder head of an internal combustion engine has an orifice function for adjusting and adjusting the amount of oil.

【０００２】[0002]

【従来の技術】内燃機関のシリンダヘッドに設けられた
動弁機構には、クランクシャフトにより駆動されるオイ
ルポンプで汲み上げたオイルが、シリンダブロックに穿
設したオイル通路とシリンダヘッドに穿設したオイル通
路を通って供給される。前記オイルを調量・調圧すべく
一般にシリンダブロックのオイル通路の開口部にオリフ
ィス形成部材が装着されるが、そのオリフィス形成部材
を省略して部品点数を削減するために、シリンダブロッ
クの端面とシリンダヘッドの端面間に挟持されるガスケ
ットにオリフィスとして機能する小孔を貫通形成し、前
記シリンダブロックのオイル通路からシリンダヘッドの
オイル通路に流入するオイルを前記小孔によって調量・
調圧するものが提案されている（実開昭６１−１３２４
０６号公報）。2. Description of the Related Art In a valve mechanism provided in a cylinder head of an internal combustion engine, oil pumped by an oil pump driven by a crankshaft is used for oil passage formed in a cylinder block and oil formed in a cylinder head. Supplied through the passage. An orifice forming member is generally attached to the opening of the oil passage of the cylinder block in order to adjust and regulate the oil, but in order to omit the orifice forming member and reduce the number of parts, the end face of the cylinder block and the cylinder A small hole that functions as an orifice is formed through the gasket sandwiched between the end faces of the head, and the oil that flows from the oil passage of the cylinder block into the oil passage of the cylinder head is adjusted by the small hole.
A pressure regulator has been proposed (Shokaisho 61-1324).
No. 06 publication).

【０００３】[0003]

【発明が解決しようとする課題】ところで上記公報に記
載されたものは、シリンダブロックの端面に開口するオ
イル通路からガスケットの小孔を通過したオイルは、一
旦シリンダヘッドの端面に凹設したオイル溜りに噴出
し、そこからシリンダヘッドに穿設したオイル通路に流
入するように構成されているため、シリンダヘッドに前
記オイル溜りを形成するための加工が必要であった。SUMMARY OF THE INVENTION By the way, in the one disclosed in the above publication, the oil that has passed through the small hole of the gasket from the oil passage opening at the end surface of the cylinder block is temporarily stored in the oil pool which is recessed at the end surface of the cylinder head. Since it is configured so as to be jetted out into the oil passage and flow into the oil passage bored in the cylinder head from there, it is necessary to perform processing for forming the oil sump in the cylinder head.

【０００４】本発明は前述の事情に鑑みてなされたもの
で、前記シリンダヘッドのオイル溜りを廃止して加工コ
ストを削減し得る、オリフィス機能を持つガスケット構
造を提供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a gasket structure having an orifice function, which can eliminate the oil reservoir of the cylinder head and reduce the processing cost.

【０００５】[0005]

【課題を解決するための手段】上記目的を達成するため
に、本発明のオリフィス機能を持つガスケット構造は、
シリンダブロックの端面とシリンダヘッドの端面間に挟
持されるガスケットに、両端が前記シリンダブロックの
端面に開口するオイル通路と前記シリンダヘッドの端面
に開口するオイル通路とに連通する切欠きを設け、その
切欠きの中間にそこを流れるオイルを調量・調圧するオ
リフィスを形成したことを特徴とする。In order to achieve the above object, a gasket structure having an orifice function of the present invention is
The gasket sandwiched between the end surface of the cylinder block and the end surface of the cylinder head is provided with a notch that communicates with an oil passage whose both ends open to the end surface of the cylinder block and an oil passage that opens to the end surface of the cylinder head. It is characterized by forming an orifice in the middle of the notch for adjusting and regulating the oil flowing therethrough.

【０００６】[0006]

【実施例】以下、図面に基づいて本発明の実施例を説明
する。Embodiments of the present invention will be described below with reference to the drawings.

【０００７】図１に示すように、内燃機関のシリンダブ
ロック１の端面１1には、金属製のガスケット２を挟ん
でシリンダヘッド３の端面３1 が重ね合わされ、ボルト
４で結合される。シリンダヘッド３の上部にはカムホル
ダ５がボルト６で固定され、シリンダヘッド３とカムホ
ルダ５の間には動弁機構のカムシャフト７が回転自在に
支持される。As shown in FIG. 1, an end face 3 1 of a cylinder head 3 is superposed on an end face 1 1 of a cylinder block 1 of an internal combustion engine with a gasket 2 made of metal interposed therebetween, and is joined with a bolt 4. A cam holder 5 is fixed to the upper part of the cylinder head 3 with bolts 6, and a cam shaft 7 of a valve mechanism is rotatably supported between the cylinder head 3 and the cam holder 5.

【０００８】シリンダブロック１には図示せぬオイルポ
ンプに接続するオイル通路１2 が穿設され、そのオイル
通路１2 の上端はシリンダブロック１の端面１1 に開口
する。一方、シリンダヘッド３には前記ボルト４の挿通
孔として利用されるオイル通路３2 が穿設され、そのオ
イル通路３2 の下端は前記オイル通路１2 の開口の近傍
においてシリンダヘッド３の端面３1 に開口する。シリ
ンダヘッド３のオイル通路３2 は他のオイル通路３3 を
介して前記カムシャフト７の外周に連通する。ガスケッ
ト２には、オイル通路１2 の上端開口とオイル通路３2
の下端開口とに連通する切欠き８が貫通形成される。[0008] The cylinder block 1 oil passage 1 2 connected to the oil pump (not shown) is drilled, the upper end of the oil passage 1 2 is open on the end face 1 1 of the cylinder block 1. On the other hand, the cylinder head 3 is provided with an oil passage 3 2 used as an insertion hole for the bolt 4, and the lower end of the oil passage 3 2 is near the opening of the oil passage 1 2 and the end face 3 of the cylinder head 3 is formed. Open to 1 . The oil passage 3 2 of the cylinder head 3 communicates with the outer circumference of the camshaft 7 via another oil passage 3 3 . In the gasket 2, the upper end opening of the oil passage 1 2 and the oil passage 3 2
A notch 8 communicating with the lower end opening of the is formed.

【０００９】図２および図３を併せて参照すると明らか
なように、ガスケット２には前記切欠き８に加えて、シ
リンダおよび燃焼室に対応するボア開口９、前記ボルト
４が貫通するボルト挿通孔１０、冷却水入口孔１１、お
よび冷却水出口孔１２がそれぞれ複数個ずつ形成され
る。切欠き８には、シリンダブロック１のオイル通路１
2 の上端に連通する円形のオイル供給孔１３と、シリン
ダヘッド３のオイル通路３2 の下端に連通し、ボルト４
の挿通孔としても機能する円形のオイル排出孔１４が隣
接して形成される。そして、前記切欠き８のオイル供給
孔１３とオイル排出孔１４は幅狭の接続部１５により連
通し、ガスケット２がシリンダブロック１とシリンダヘ
ッド３の両端面１1，３1 間に挟持された時、前記接続
部１５によってオリフィス１６が形成される。Obviously referring to FIGS. 2 and 3 together
In addition to the notch 8, the gasket 2
Bore opening 9 corresponding to the Linda and the combustion chamber, the bolt
4, a bolt insertion hole 10, a cooling water inlet hole 11,
And a plurality of cooling water outlet holes 12 are formed.
It The oil passage 1 of the cylinder block 1 is provided in the notch 8.
2Circular oil supply hole 13 communicating with the upper end of the
Oil passage 3 of da head 32Connect to the lower end of the
Adjacent to the circular oil drain hole 14 that also functions as an insertion hole for
Formed in contact. And the oil supply of the notch 8
The hole 13 and the oil discharge hole 14 are connected by a narrow connecting portion 15.
Through the gasket 2 to the cylinder block 1 and the cylinder.
Both ends 1 of the pad 31, 31The connection when sandwiched between
An orifice 16 is formed by the portion 15.

【００１０】次に、前述の本発明の実施例の作用につい
て説明する。Next, the operation of the above-described embodiment of the present invention will be described.

【００１１】クランクシャフトにより駆動されるオイル
ポンプからシリンダブロック１のオイル通路１2 に圧送
されたオイルは、オイル通路１2の上端開口からガスケ
ット２に形成した切欠き８のオイル供給孔１３に流入し
た後、横方向に９０°方向を変えて接続部１５を通過
し、オイル排出孔１４に流入する。オイル排出孔１４の
オイルは上向きに９０°方向を変えてシリンダヘッド３
のオイル通路３2 に流入し、更にオイル通路３3 を通っ
てカムシャフト７の外周に達して該カムシャフト７の摺
動面を潤滑する。そして、前記オイルがガスケット２の
切欠き８を通過する際に、シリンダブロック１の端面１
1 とシリンダヘッド３の端面３1 に挟まれた接続部１５
により形成されるオリフィス１６を通過し、そこで流量
と圧力が調節される。The oil pumped from the oil pump driven by the crankshaft to the oil passage 1 2 of the cylinder block 1 flows into the oil supply hole 13 of the notch 8 formed in the gasket 2 from the upper end opening of the oil passage 1 2. After that, it changes the direction by 90 ° in the lateral direction, passes through the connecting portion 15, and flows into the oil discharge hole 14. The oil in the oil discharge hole 14 changes its direction by 90 ° upward, and
The flows into the oil passage 3 2, further lubricating the sliding surface of the cam shaft 7 reaches the outer periphery of the cam shaft 7 through an oil passage 3 3. Then, when the oil passes through the notch 8 of the gasket 2, the end surface 1 of the cylinder block 1
1 and the connecting portion 15 sandwiched between the end face 3 1 of the cylinder head 3
It passes through an orifice 16 formed by, where the flow rate and pressure are regulated.

【００１２】而して、上記ガスケット２の構造により、
シリンダブロック１の端面１1 に開口するオイル通路１
2 に対向するオイル溜りをシリンダヘッド３の端面３1
に形成する必要が無いため、加工コストを削減すること
ができる。また前記オリフィス１６はガスケット２を組
み付けた状態でのみオリフィス機能を発揮するものであ
るため、分解した際にその点検や清掃を容易に行うこと
ができる。Thus, due to the structure of the gasket 2,
Oil passage 1 opening to the end face 1 1 of the cylinder block 1
The oil sump facing 2 is attached to the end face 3 1 of the cylinder head 3.
Since it is not necessary to form it, the processing cost can be reduced. Further, since the orifice 16 exhibits the orifice function only in the state where the gasket 2 is assembled, it can be easily inspected and cleaned when disassembled.

【００１３】以上、本発明の実施例を詳述したが、本発
明は前記実施例に限定されるものではなく、特許請求の
範囲に記載された本発明を逸脱することなく種々の小設
計変更を行うことが可能である。Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various small design changes can be made without departing from the present invention described in the claims. It is possible to

【００１４】例えば、実施例では精度が高く耐久性に優
れた金属製のガスケット２を例示したが、本発明はアス
ベスト等の他の材料で形成したガスケットに対しても適
用可能である。For example, in the embodiment, the metal gasket 2 having high accuracy and excellent durability is exemplified, but the present invention can be applied to a gasket made of other material such as asbestos.

【００１５】[0015]

【発明の効果】以上のように本発明によれば、ガスケッ
トにシリンダブロックのオイル通路とシリンダヘッドの
オイル通路とに連通する切欠きを形成し、そのガスケッ
トをシリンダブロックとシリンダヘッド間に挟持するこ
とにより、切欠きに流入したオイルをガスケットの厚さ
方向と直交する方向に流してオリフィス機能を発揮させ
ているので、従来必要であったシリンダヘッドのオイル
溜りが不要になって加工コストが削減される。しかも分
解によりガスケットを取り外すと、オリフィスを構成す
る切欠きが大きく開口するため、その点検や清掃を極め
て容易に行うことができる。As described above, according to the present invention, the gasket is formed with the notch communicating with the oil passage of the cylinder block and the oil passage of the cylinder head, and the gasket is sandwiched between the cylinder block and the cylinder head. By doing so, the oil that flows into the notch is made to flow in the direction orthogonal to the thickness direction of the gasket to exert the orifice function, so the oil pool of the cylinder head, which was required in the past, is not required and the processing cost is reduced. To be done. Moreover, when the gasket is removed by disassembly, the notch that constitutes the orifice opens greatly, so that inspection and cleaning can be performed extremely easily.

【図面の簡単な説明】[Brief description of drawings]

【図１】内燃機関のシリンダヘッド部分の断面図FIG. 1 is a sectional view of a cylinder head portion of an internal combustion engine.

【図２】ガスケットの部分平面図FIG. 2 is a partial plan view of the gasket.

【図３】図２の３部拡大斜視図FIG. 3 is an enlarged perspective view of part 3 of FIG.

【符号の説明】[Explanation of symbols]

１・・・・・シリンダブロック １1 ・・・・端面 １2 ・・・・オイル通路 ２・・・・・ガスケット ３・・・・・シリンダヘッド ３1 ・・・・端面 ３2 ・・・・オイル通路 ８・・・・・切欠き １６・・・・オリフィス1 ... Cylinder block 1 1 ... End face 1 2 ... Oil passage 2 ... Gasket 3 ... Cylinder head 3 1 ... End face 3 2 ...・ Oil passage 8 ・ ・ ・ Notch 16 ・ ・ ・ Orifice

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 シリンダブロック（１）の端面（１1 ）
とシリンダヘッド（３）の端面（３1 ）間に挟持される
ガスケット（２）に、両端が前記シリンダブロック
（１）の端面（１1 ）に開口するオイル通路（１2 ）と
前記シリンダヘッド（３）の端面（３1 ）に開口するオ
イル通路（３2 ）とに連通する切欠き（８）を設け、そ
の切欠き（８）の中間にそこを流れるオイルを調量・調
圧するオリフィス（１６）を形成したことを特徴とす
る、オリフィス機能を持つガスケット構造。1. An end surface (1 1 ) of a cylinder block ( 1 )
And an oil passage (1 2 ) whose both ends open to the end surface (1 1 ) of the cylinder block (1), and the gasket (2) sandwiched between the end surface (3 1 ) of the cylinder head (3) and the cylinder head (3). A notch (8) communicating with an oil passage (3 2 ) opening at the end face (3 1 ) of (3) is provided, and an orifice for adjusting and regulating the oil flowing therethrough in the middle of the notch (8). A gasket structure having an orifice function, characterized in that (16) is formed.
JP21237991A 1991-08-23 1991-08-23 Gasket structure having orifice function Pending JPH0552108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21237991A JPH0552108A (en) 1991-08-23 1991-08-23 Gasket structure having orifice function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21237991A JPH0552108A (en) 1991-08-23 1991-08-23 Gasket structure having orifice function

Publications (1)

Publication Number Publication Date
JPH0552108A true JPH0552108A (en) 1993-03-02

Family

ID=16621600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21237991A Pending JPH0552108A (en) 1991-08-23 1991-08-23 Gasket structure having orifice function

Country Status (1)

Country Link
JP (1) JPH0552108A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008223582A (en) * 2007-03-12 2008-09-25 Japan Metal Gasket Co Ltd Metal gasket
EP2050990A1 (en) 2007-10-16 2009-04-22 Carl Freudenberg KG Gasket
US20100326393A1 (en) * 2009-06-26 2010-12-30 Ford Global Technologies, Llc Lubrication and sealing system for internal combustion engine
JP2011038431A (en) * 2009-08-07 2011-02-24 Mazda Motor Corp Auxiliary machine oil feeder of engine
JP2015068214A (en) * 2013-09-27 2015-04-13 本田技研工業株式会社 Cam bearing oil supply structure of internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008223582A (en) * 2007-03-12 2008-09-25 Japan Metal Gasket Co Ltd Metal gasket
EP2050990A1 (en) 2007-10-16 2009-04-22 Carl Freudenberg KG Gasket
US20100326393A1 (en) * 2009-06-26 2010-12-30 Ford Global Technologies, Llc Lubrication and sealing system for internal combustion engine
US8245685B2 (en) * 2009-06-26 2012-08-21 Ford Global Technologies Lubrication and sealing system for internal combustion engine
JP2011038431A (en) * 2009-08-07 2011-02-24 Mazda Motor Corp Auxiliary machine oil feeder of engine
JP2015068214A (en) * 2013-09-27 2015-04-13 本田技研工業株式会社 Cam bearing oil supply structure of internal combustion engine

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