JPS60188806U - engine decompressor - Google Patents

engine decompressor

Info

Publication number
JPS60188806U
JPS60188806U JP7784384U JP7784384U JPS60188806U JP S60188806 U JPS60188806 U JP S60188806U JP 7784384 U JP7784384 U JP 7784384U JP 7784384 U JP7784384 U JP 7784384U JP S60188806 U JPS60188806 U JP S60188806U
Authority
JP
Japan
Prior art keywords
valve
holding device
engine
combustion chamber
oil
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
JP7784384U
Other languages
Japanese (ja)
Inventor
土田　剛
Original Assignee
マツダ株式会社
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 マツダ株式会社 filed Critical マツダ株式会社
Priority to JP7784384U priority Critical patent/JPS60188806U/en
Publication of JPS60188806U publication Critical patent/JPS60188806U/en
Pending legal-status Critical Current

Links

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案第１実施例に係るデコンプレッサーを備
えたエンジンの要部縦断面図、第２図は第１図の■−■
縦断面図、第３図は第２図に示したデコンプレッサーの
タイムチャート、第４図は本考案第２実施例に係るデコ
ンプレッサーの縦断面図、第５図は第４図に示したデコ
ンプレッサーのタイムチャートである。 １・・・エンジン、２・・・シリンダブロック、３・・
・シリンダヘッド、４・・・ヘッドカバー、５・・・ピ
ストン、６・・・燃焼室、７・・・吸気通路、８・・・
排気通路、９・・・吸気弁、１０・・・排気弁、１１・
・・カムシャフト、１２・・・カムシャフトキャップ、
１３，１４゜５７・・・ロッカアーム、１５，１６・・
・ロッカシャフト、３０．５０・・・デコンプレッサー
、３１．５２・・・開弁保持装置、３２・・・開閉弁、
３３・・・ロックピン、３４・・・ロックピン付勢バネ
、３６・・・油通路、３８・・・ニードル、４０・・・
ソレノイドコイル、４１・・・嵌合穴、４２・・・タイ
マー、４３・・・イグニッションスイッチ、５２・・・
ピストンロンド、５３・・・ピストンロンド付勢バネ、
５８・・・係合突片。Fig. 1 is a vertical cross-sectional view of the main parts of an engine equipped with a decompressor according to the first embodiment of the present invention, and Fig. 2 is a cross-sectional view of the main part of the engine equipped with a decompressor according to the first embodiment of the present invention.
3 is a time chart of the decompressor shown in FIG. 2, FIG. 4 is a longitudinal sectional view of the decompressor according to the second embodiment of the present invention, and FIG. 5 is a time chart of the decompressor shown in FIG. 4. This is a compressor time chart. 1...Engine, 2...Cylinder block, 3...
・Cylinder head, 4... Head cover, 5... Piston, 6... Combustion chamber, 7... Intake passage, 8...
Exhaust passage, 9... Intake valve, 10... Exhaust valve, 11.
...Camshaft, 12...Camshaft cap,
13,14゜57...Rocker arm, 15,16...
・Rocker shaft, 30.50... Decompressor, 31.52... Valve opening holding device, 32... Opening/closing valve,
33...Lock pin, 34...Lock pin biasing spring, 36...Oil passage, 38...Needle, 40...
Solenoid coil, 41... Fitting hole, 42... Timer, 43... Ignition switch, 52...
Piston rond, 53... Piston rond biasing spring,
58... Engaging protrusion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 燃焼室に連通ずる吸気通路に該吸気通路と前記燃焼室と
の間を開閉する吸気弁を、また前記燃焼室に連通ずる排
気通路に該排気通路と燃焼室との間を開閉する排気弁を
それぞれ設けたエンジンにおいて、オイルポンプにより
エンジンの各所に圧送されるエンジンオイルの油圧を受
けて作動し、前記吸気弁と排気弁のうち少なくともいず
れか一方を開弁状態に保持する開弁保持装置と、該開弁
保持装置と前記オイルポンプとの間を接続する油通路に
介設され、イグニッションスイッチのＯＮ状態からＯＦ
Ｆ状態への変化に関連する信号からエンジンの停止を検
出する停止検出手段の信号を受けて前記開弁保持装置を
作動させるとともに、エンジンの起動を検出する起動検
出手段の信号を受けて前記開弁保持装置を非作動とする
如く該開弁保持装置へ供給される圧油の流通を制御する
開閉弁とを備えたことを特徴とするエンジンのデコンプ
レッサー。An intake passage communicating with the combustion chamber includes an intake valve that opens and closes between the intake passage and the combustion chamber, and an exhaust passage that communicates with the combustion chamber includes an exhaust valve that opens and closes between the exhaust passage and the combustion chamber. a valve-open holding device that operates in response to hydraulic pressure of engine oil pumped to various parts of the engine by an oil pump and holds at least one of the intake valve and the exhaust valve in an open state; , is interposed in an oil passage connecting between the valve-open holding device and the oil pump, and is installed in an oil passage connecting the valve-open holding device and the oil pump, and
The valve opening holding device is actuated in response to a signal from a stop detection means for detecting engine stop from a signal related to a change to the F state, and the valve opening holding device is operated in response to a signal from a start detection means for detecting engine start. 1. A decompressor for an engine, comprising an on-off valve that controls the flow of pressure oil supplied to the valve holding device so as to deactivate the valve holding device.
JP7784384U 1984-05-25 1984-05-25 engine decompressor Pending JPS60188806U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7784384U JPS60188806U (en) 1984-05-25 1984-05-25 engine decompressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7784384U JPS60188806U (en) 1984-05-25 1984-05-25 engine decompressor

Publications (1)

Publication Number Publication Date
JPS60188806U true JPS60188806U (en) 1985-12-14

Family

ID=30621277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7784384U Pending JPS60188806U (en) 1984-05-25 1984-05-25 engine decompressor

Country Status (1)

Country Link
JP (1) JPS60188806U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016505760A (en) * 2012-12-18 2016-02-25 ジェイコブス ビークル システムズ、インコーポレイテッド Rocker latch for controlling engine valve operation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016505760A (en) * 2012-12-18 2016-02-25 ジェイコブス ビークル システムズ、インコーポレイテッド Rocker latch for controlling engine valve operation
EP2935808A4 (en) * 2012-12-18 2016-08-24 Jacobs Vehicle Systems Inc Rocker latch for controlling engine valve actuation
US9739184B2 (en) 2012-12-18 2017-08-22 Jacobs Vehicle Systems, Inc. Start of an internal combustion engine with at least one engine valve in an open state during cranking

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