JPH0414706U - - Google Patents
Info
- Publication number
- JPH0414706U JPH0414706U JP5478590U JP5478590U JPH0414706U JP H0414706 U JPH0414706 U JP H0414706U JP 5478590 U JP5478590 U JP 5478590U JP 5478590 U JP5478590 U JP 5478590U JP H0414706 U JPH0414706 U JP H0414706U
- Authority
- JP
- Japan
- Prior art keywords
- camshaft
- oil
- cylinder head
- camshafts
- driving
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
図面は本考案にかかるＤＯＨＣエンジンのシリ
ンダヘツドの実施例を示し、第１図はシリンダヘ
ツドの平面図、第２図は該ヘツドの側面図、第３
図は同じくシリンダヘツドの一部破断図、第４図
はバルブタイミング機構の断面拡大図、第５図は
動弁機構部分の断面拡大図、第６図および第７図
は制御弁の断面図であつて、第６図は開弁時の状
態図、第７図は閉弁時の状態図である。
１……ＶＯＨＣエンジン、２，３……カムシヤ
フト、４……シリンダヘツド、５，６……軸受け
部、７，８……カムシヤフトギア、１０……可変
バルブタイミング機構、２２……流体式バルブラ
ツシユ機構、３７，４４……中空部（中空通路）
、４１，４２……オイル通路、４６……軸受け用
オイル通路、４９……制御弁。
The drawings show an embodiment of a cylinder head for a DOHC engine according to the present invention, and FIG. 1 is a plan view of the cylinder head, FIG. 2 is a side view of the head, and FIG.
The figure is also a partially cutaway view of the cylinder head, Figure 4 is an enlarged cross-sectional view of the valve timing mechanism, Figure 5 is an enlarged cross-sectional view of the valve mechanism, and Figures 6 and 7 are cross-sectional views of the control valve. FIG. 6 is a state diagram when the valve is open, and FIG. 7 is a state diagram when the valve is closed. 1... VOHC engine, 2, 3... Camshaft, 4... Cylinder head, 5, 6... Bearing section, 7, 8... Camshaft gear, 10... Variable valve timing mechanism, 22... Fluid valve lock Mechanism, 37, 44...Hollow part (hollow passage)
, 41, 42...oil passage, 46...bearing oil passage, 49...control valve.
Claims (1)
ムシヤフトがシリンダヘツドに備えられ、これら
のカムシヤフトの一方がクランクシヤフトにより
駆動されると共に、該駆動側のカムシヤフトの一
端部に可変バルブタイミング機構が装備され、か
つ該バルブタイミング機構の近傍で上記駆動側の
カムシヤフトが他方のカムシヤフトに一対のカム
シヤフトギヤを介して連動されているＤＯＨＣエ
ンジンにおいて、上記シリンダヘツドにおける一
対のカムシヤフトの間に、オイルポンプから送り
込まれるオイルを、上記カムシヤフトと吸・排気
バルブとの間に介設された流体式バルブラツシユ
機構に供給する２本のオイル通路を両カムシヤフ
トに平行して並設すると共に、上記駆動側カムシ
ヤフトの他端部近傍に、上記オイル通路から該駆
動側カムシヤフトの中空部を通して上記可変バル
ブタイミング機構にオイルを供給する制御弁を設
け、かつ上記オイル通路から分岐して駆動側カム
シヤフトの軸受け部にオイルを供給する別のオイ
ル通路を、シリンダヘツドにおける駆動側カムシ
ヤフトの外側に設けたことを特徴とするＤＯＨＣ
エンジンのシリンダヘツド。 A pair of camshafts for opening and closing intake and exhaust valves are provided in the cylinder head, one of these camshafts is driven by a crankshaft, and one end of the driving camshaft is equipped with a variable valve timing mechanism, and In a DOHC engine in which the driving side camshaft is interlocked with the other camshaft via a pair of camshaft gears near the valve timing mechanism, oil is sent from an oil pump between the pair of camshafts in the cylinder head. Two oil passages for supplying a fluid-type valve lash mechanism interposed between the camshaft and the intake/exhaust valves are arranged in parallel to both camshafts, and near the other end of the drive-side camshaft, A control valve is provided for supplying oil from the oil passage to the variable valve timing mechanism through the hollow part of the driving camshaft, and another oil passage is branched from the oil passage and supplies oil to the bearing part of the driving camshaft. is provided on the outside of the drive side camshaft in the cylinder head.
Engine cylinder head.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5478590U JP2506432Y2 (en) | 1990-05-24 | 1990-05-24 | DOHC engine cylinder head |
| US07/676,574 US5143034A (en) | 1990-03-29 | 1991-03-28 | Lubrication system for V-type overhead camshaft engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5478590U JP2506432Y2 (en) | 1990-05-24 | 1990-05-24 | DOHC engine cylinder head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0414706U true JPH0414706U (en) | 1992-02-06 |
| JP2506432Y2 JP2506432Y2 (en) | 1996-08-07 |
Family
ID=31577159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5478590U Expired - Lifetime JP2506432Y2 (en) | 1990-03-29 | 1990-05-24 | DOHC engine cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2506432Y2 (en) |
-
1990
- 1990-05-24 JP JP5478590U patent/JP2506432Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2506432Y2 (en) | 1996-08-07 |
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