JPH0224006U - - Google Patents

Info

Publication number
JPH0224006U
JPH0224006U JP10269288U JP10269288U JPH0224006U JP H0224006 U JPH0224006 U JP H0224006U JP 10269288 U JP10269288 U JP 10269288U JP 10269288 U JP10269288 U JP 10269288U JP H0224006 U JPH0224006 U JP H0224006U
Authority
JP
Japan
Prior art keywords
camshaft
helical gear
oil passage
internal combustion
combustion engine
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
Application number
JP10269288U
Other languages
Japanese (ja)
Other versions
JP2504996Y2 (en
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 filed Critical
Priority to JP1988102692U priority Critical patent/JP2504996Y2/en
Publication of JPH0224006U publication Critical patent/JPH0224006U/ja
Application granted granted Critical
Publication of JP2504996Y2 publication Critical patent/JP2504996Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本考案による可変バルブタイミング機
構を有した内燃機関の部分的シリンダヘツド上視
図；第２図は第１図―線に沿う部分的なカム
シヤフト断面図；第３図は可変バルブタイミング
機構のバルブタイミング切換領域例を示すマツプ
図；第４図は上記機構によるバルブリフト特性を
示すグラフ；第５図は高・低速型バルブタイミン
グ夫々のエンジン出力、トルク特性を示す図。 ２……排気用カムシヤフト、３……排気側ヘリ
カルギヤ、４……吸気用カムシヤフト、５……吸
気側ヘリカルギヤ、４ｂ……油路、１５……コン
トロールバルブ（弁装置）、１７……ソレノイド
（弁装置）。 Fig. 1 is a top view of a partial cylinder head of an internal combustion engine having a variable valve timing mechanism according to the present invention; Fig. 2 is a partial sectional view of a camshaft taken along the line of Fig. 1; Fig. 3 is a variable valve timing A map diagram showing an example of the valve timing switching range of the mechanism; FIG. 4 is a graph showing valve lift characteristics by the above mechanism; FIG. 5 is a diagram showing engine output and torque characteristics for high and low speed valve timings, respectively. 2... Exhaust camshaft, 3... Exhaust side helical gear, 4... Intake camshaft, 5... Intake side helical gear, 4b... Oil passage, 15... Control valve (valve device), 17... Solenoid (valve) Device).

Claims (1)

【実用新案登録請求の範囲】 吸気用カムシヤフト及び排気用カムシヤフトを
備え、該カムシヤフトのいずれか一方をクランク
シヤフトに連動させ、他方のカムシヤフトを、上
記カムシヤフトに対応して夫々設けられたヘリカ
ルギヤを介して連動連結する内燃機関において、 上記他方のカムシヤフトと、そのヘリカルギヤ
とをスプライン結合すると共にカムシヤフト内部
にヘリカルギヤ端面及びカムシヤフト端部に開口
する油路を形成し、該カムシヤフト端部に機関運
転条件に応じて上記油路内圧力を可変ならしめる
弁装置を整列配置し、以つて上記運転条件に応じ
て上記ヘリカルギヤをカムシヤフト軸方向に移動
せしめることを特徴とする内燃機関の可変バルブ
タイミング機構。[Scope of Claim for Utility Model Registration] An intake camshaft and an exhaust camshaft are provided, one of the camshafts is interlocked with a crankshaft, and the other camshaft is connected via a helical gear provided correspondingly to the camshaft. In an interlocking internal combustion engine, the other camshaft and its helical gear are spline-coupled, and an oil passage is formed inside the camshaft that opens to the helical gear end face and the camshaft end, and the camshaft end has an oil passage that opens to the helical gear end face and the camshaft end. A variable valve timing mechanism for an internal combustion engine, characterized in that valve devices for making the pressure in the oil passage variable are arranged in an array, and the helical gear is moved in the axial direction of a camshaft depending on the operating conditions.
JP1988102692U 1988-08-04 1988-08-04 Variable valve timing mechanism for internal combustion engine Expired - Lifetime JP2504996Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988102692U JP2504996Y2 (en) 1988-08-04 1988-08-04 Variable valve timing mechanism for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988102692U JP2504996Y2 (en) 1988-08-04 1988-08-04 Variable valve timing mechanism for internal combustion engine

Publications (2)

Publication Number Publication Date
JPH0224006U true JPH0224006U (en) 1990-02-16
JP2504996Y2 JP2504996Y2 (en) 1996-07-24

Family

ID=31332835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988102692U Expired - Lifetime JP2504996Y2 (en) 1988-08-04 1988-08-04 Variable valve timing mechanism for internal combustion engine

Country Status (1)

Country Link
JP (1) JP2504996Y2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058805U (en) * 1983-09-30 1985-04-24 いすゞ自動車株式会社 Intake/exhaust valve open period control device
JPS6127908U (en) * 1984-07-24 1986-02-19 日産自動車株式会社 valve drive device
JPS62191606A (en) * 1986-02-17 1987-08-22 Nissan Motor Co Ltd Valve timing variable controller of engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058805U (en) * 1983-09-30 1985-04-24 いすゞ自動車株式会社 Intake/exhaust valve open period control device
JPS6127908U (en) * 1984-07-24 1986-02-19 日産自動車株式会社 valve drive device
JPS62191606A (en) * 1986-02-17 1987-08-22 Nissan Motor Co Ltd Valve timing variable controller of engine

Also Published As

Publication number Publication date
JP2504996Y2 (en) 1996-07-24

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