JPS6098705U - Low-noise engine valve system - Google Patents

Low-noise engine valve system

Info

Publication number
JPS6098705U
JPS6098705U JP19174883U JP19174883U JPS6098705U JP S6098705 U JPS6098705 U JP S6098705U JP 19174883 U JP19174883 U JP 19174883U JP 19174883 U JP19174883 U JP 19174883U JP S6098705 U JPS6098705 U JP S6098705U
Authority
JP
Japan
Prior art keywords
hydraulic
valve
lifter
low
oil chamber
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
JP19174883U
Other languages
Japanese (ja)
Inventor
青木　弘文
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP19174883U priority Critical patent/JPS6098705U/en
Publication of JPS6098705U publication Critical patent/JPS6098705U/en
Pending legal-status Critical Current

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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図は従来装置の断面図、第２図はそのハイドロリッ
クパルプリフタの断面図、第３図はこの考案の実施例を
示す要部断面図、第４図はその作動状態図である。 ４．５・・・吸排気バルブ、６・・・カムシャフト、７
．８・・・ロッカシャフト、９Ａ・・・リフトガイド、
１０Ａ・・・ハイドロリックパルプリフタ、１１Ａ・・
・ボディ、１４Ａ・・・プランジャ、１５Ａ・・・プラ
ンジャヘッド、１８Ａ・・・油溜室、１９Ａ・・・チェ
ックバルブ、２０Ａ・・・高圧室、２１Ａ・・・リター
ンスプリ　　−・ング、２９・・・油圧室、３１・・・
油通路、３７・・・オリフィス、４０・・・チェックバ
ルブ。Fig. 1 is a sectional view of a conventional device, Fig. 2 is a sectional view of its hydraulic pulp lifter, Fig. 3 is a sectional view of a main part showing an embodiment of this invention, and Fig. 4 is a diagram of its operating state. 4.5... Intake and exhaust valve, 6... Camshaft, 7
．． 8...Rocker shaft, 9A...Lift guide,
10A...Hydraulic pulp lifter, 11A...
・Body, 14A...Plunger, 15A...Plunger head, 18A...Oil reservoir chamber, 19A...Check valve, 20A...High pressure chamber, 21A...Return spring, 29. ...Hydraulic chamber, 31...
Oil passage, 37...orifice, 40...check valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] カムシャフトとロッカアームの間にリフタガイドに案内
されて摺動するハイドロリックバルブリフタを介在させ
た自動車用エンジンの動弁機構において、ハイドロリッ
クパルプリフタとりフタガイドの摺動間隙にハイドロリ
ックパルプリフタの昇降に伴って拡縮する油室を形成し
、この油室にハイドロリックバルブリフトの上昇時にチ
ェックバルブを介して油を流入させ、同じく下降時にバ
ルブ着座直前で油室からの油の流出に抵抗を付与する手
段を設けたことを特徴とするエンジンの低騒音動弁装置
。In an automobile engine valve mechanism in which a hydraulic valve lifter that slides while being guided by a lifter guide is interposed between the camshaft and rocker arm, the hydraulic pulp lifter is raised and lowered in the sliding gap between the hydraulic pulp lifter and the lid guide. An oil chamber is formed that expands and contracts as the hydraulic valve lift increases, and oil flows into this oil chamber via a check valve when the hydraulic valve lift rises. Similarly, when the hydraulic valve lift goes up, oil is prevented from flowing out of the oil chamber just before the valve is seated. A low-noise valve operating system for an engine, characterized in that it is provided with a means for reducing noise.
JP19174883U 1983-12-13 1983-12-13 Low-noise engine valve system Pending JPS6098705U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19174883U JPS6098705U (en) 1983-12-13 1983-12-13 Low-noise engine valve system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19174883U JPS6098705U (en) 1983-12-13 1983-12-13 Low-noise engine valve system

Publications (1)

Publication Number Publication Date
JPS6098705U true JPS6098705U (en) 1985-07-05

Family

ID=30412836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19174883U Pending JPS6098705U (en) 1983-12-13 1983-12-13 Low-noise engine valve system

Country Status (1)

Country Link
JP (1) JPS6098705U (en)

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