JPH0419610U - - Google Patents
Info
- Publication number
- JPH0419610U JPH0419610U JP6083790U JP6083790U JPH0419610U JP H0419610 U JPH0419610 U JP H0419610U JP 6083790 U JP6083790 U JP 6083790U JP 6083790 U JP6083790 U JP 6083790U JP H0419610 U JPH0419610 U JP H0419610U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder head
- timing mechanism
- passage
- camshafts
- variable valve
- 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
- 239000010720 hydraulic oil Substances 0.000 claims 5
Landscapes
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
図面は本考案の実施例を示すもので、第１図は
一部を破断して示したエンジンの部分平面図、第
２図は第１図の−線切断線に沿つて見た断面
図、第３図は第１図の−切断線に沿つて見た
概略拡大断面図、第４図は第１図の−切断線
に沿つて見た作動状態における電磁ソレノイド弁
の一部を切り欠いて示した要部拡大側面図、第５
図は第４図の−線切断線に沿つて見た断面図
、第６図は非作動状態における電磁ソレノイド弁
の一部を切り欠いて示した要部拡大側面図である
。
２……シリンダヘツド、４……第１カムシヤフ
ト、５……第２カムシヤフト、１５……排気バル
ブ、１７……吸気バルブ、１８……上部空間、１
９……シリンダヘツドカバー、２６……可変バル
ブタイミング機構、４５……電磁ソレノイド弁、
５０……ソレノイドコイル部、４２……供給通路
、４７……導入通路、４８……排出通路、５５…
…弁体、５８……リリーフ通路。
The drawings show an embodiment of the present invention; FIG. 1 is a partial plan view of the engine partially cut away; FIG. 2 is a sectional view taken along the - line cutting line in FIG. 1; Fig. 3 is a schematic enlarged sectional view taken along the - section line in Fig. 1, and Fig. 4 is a partially cutaway view of the electromagnetic solenoid valve in the operating state, taken along the - section line in Fig. 1. Enlarged side view of main parts shown, No. 5
This figure is a sectional view taken along the - line cutting line in FIG. 4, and FIG. 6 is an enlarged side view of the main part of the electromagnetic solenoid valve in a non-operating state, with a portion thereof cut away. 2... Cylinder head, 4... First camshaft, 5... Second camshaft, 15... Exhaust valve, 17... Intake valve, 18... Upper space, 1
9... Cylinder head cover, 26... Variable valve timing mechanism, 45... Electromagnetic solenoid valve,
50...Solenoid coil section, 42...Supply passage, 47...Introduction passage, 48...Discharge passage, 55...
...Valve body, 58...Relief passage.
Claims (1)
ンダヘツドの上部空間に、吸、排気バルブをそれ
ぞれ開閉させる１対のカムシヤフトが配設されて
いると共に、少なくとも一方のカムシヤフトにク
ランクシヤフトに対する位相を変化させる油圧作
動式の可変バルブタイミング機構が備えられたＤ
ＯＨＣエンジンのシリンダヘツドであつて、上記
可変バルブタイミング機構に対して作動油を給排
制御する電磁ソレノイド弁が、上記シリンダヘツ
ドの上部に位置する１対のカムシヤフト間に配設
されていると共に、上記ソレノイド弁の少なくと
もソレノイドコイル部がシリンダヘツドの上記上
部空間に露出するように取り付けられていること
を特徴とする可変バルブタイミング機構を備えた
ＤＯＨＣエンジンのシリンダヘツド。 (2) シリンダヘツドの上部に吸、排気バルブを
それぞれ開閉させる１対のカムシヤフトが配設さ
れていると共に、少なくとも一方のカムシヤフト
にクランクシヤフトに対する位相を変化させる油
圧作動式の可変バルブタイミング機構が備えられ
たＤＯＨＣエンジンのシリンダヘツドであつて、
上記可変バルブタイミング機構に対して作動油を
給排制御する電磁ソレノイド弁がシリンダヘツド
に取り付けられて、該シリンダヘツドには、上記
作動油の導入通路と、作動油を上記タイミング機
構へ導く供給通路と、この供給通路をドレンさせ
る排出通路とが設けられていると共に、上記電磁
ソレノイド弁に設けられて上記導入通路に対して
供給通路を連通、遮断させる弁体に、該供給通路
の作動油を上記排出通路へ逃がす通路が形成され
ていることを特徴とする可変バルブタイミング機
構を備えたＤＯＨＣエンジンのシリンダヘツド。[Claims for Utility Model Registration] (1) A pair of camshafts that open and close the intake and exhaust valves are disposed in the upper space of the cylinder head covered by the cylinder head cover, and at least one of the camshafts opens and closes the intake and exhaust valves. D equipped with a hydraulically operated variable valve timing mechanism that changes the phase relative to the crankshaft.
A cylinder head of an OHC engine, in which an electromagnetic solenoid valve for controlling the supply and discharge of hydraulic oil to and from the variable valve timing mechanism is disposed between a pair of camshafts located at the upper part of the cylinder head, and A cylinder head for a DOHC engine equipped with a variable valve timing mechanism, characterized in that at least a solenoid coil portion of the solenoid valve is mounted so as to be exposed in the upper space of the cylinder head. (2) A pair of camshafts are installed at the top of the cylinder head to open and close the intake and exhaust valves, respectively, and at least one of the camshafts is equipped with a hydraulically operated variable valve timing mechanism that changes the phase relative to the crankshaft. A cylinder head of a DOHC engine,
An electromagnetic solenoid valve that controls the supply and discharge of hydraulic oil to and from the variable valve timing mechanism is attached to the cylinder head, and the cylinder head includes an introduction passage for the hydraulic oil and a supply passage that guides the hydraulic oil to the timing mechanism. and a discharge passage for draining the supply passage, and a valve element provided in the electromagnetic solenoid valve that communicates and shuts off the supply passage with the introduction passage, drains the hydraulic oil in the supply passage. A cylinder head for a DOHC engine equipped with a variable valve timing mechanism, characterized in that a passage is formed to escape to the exhaust passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990060837U JP2525238Y2 (en) | 1990-06-08 | 1990-06-08 | DOHC engine cylinder head with variable valve timing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990060837U JP2525238Y2 (en) | 1990-06-08 | 1990-06-08 | DOHC engine cylinder head with variable valve timing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0419610U true JPH0419610U (en) | 1992-02-19 |
| JP2525238Y2 JP2525238Y2 (en) | 1997-02-05 |
Family
ID=31588554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990060837U Expired - Lifetime JP2525238Y2 (en) | 1990-06-08 | 1990-06-08 | DOHC engine cylinder head with variable valve timing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525238Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002046583A1 (en) * | 2000-12-04 | 2002-06-13 | Mitsubishi Denki Kabushiki Kaisha | Oil control valve and method of mounting the oil control valve |
| JP2002242617A (en) * | 2001-02-14 | 2002-08-28 | Mazda Motor Corp | Lubrication device for variable valve timing mechanism of internal combustion engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63108490A (en) * | 1986-10-27 | 1988-05-13 | 松下電工株式会社 | Guidance apparatus |
-
1990
- 1990-06-08 JP JP1990060837U patent/JP2525238Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63108490A (en) * | 1986-10-27 | 1988-05-13 | 松下電工株式会社 | Guidance apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002046583A1 (en) * | 2000-12-04 | 2002-06-13 | Mitsubishi Denki Kabushiki Kaisha | Oil control valve and method of mounting the oil control valve |
| JP2002242617A (en) * | 2001-02-14 | 2002-08-28 | Mazda Motor Corp | Lubrication device for variable valve timing mechanism of internal combustion engine |
| JP4517514B2 (en) * | 2001-02-14 | 2010-08-04 | マツダ株式会社 | Oiling device for variable valve timing mechanism of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2525238Y2 (en) | 1997-02-05 |
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