JPH01114904U - - Google Patents

Info

Publication number
JPH01114904U
JPH01114904U JP911788U JP911788U JPH01114904U JP H01114904 U JPH01114904 U JP H01114904U JP 911788 U JP911788 U JP 911788U JP 911788 U JP911788 U JP 911788U JP H01114904 U JPH01114904 U JP H01114904U
Authority
JP
Japan
Prior art keywords
upper seat
valve
spring
valve stem
intake
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
JP911788U
Other languages
Japanese (ja)
Other versions
JPH0629442Y2 (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 JP1988009117U priority Critical patent/JPH0629442Y2/en
Publication of JPH01114904U publication Critical patent/JPH01114904U/ja
Application granted granted Critical
Publication of JPH0629442Y2 publication Critical patent/JPH0629442Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)

Description

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

第１図は、本考案の実施例の動弁構造を示す断
面図。 ２……燃焼室、３……吸気ポート、４……吸気
バルブ、５……弁部、６……バルブステム、８…
…バルブステム頭部、１０……アツパーシート、
１１……係合部、１２……スプリング座、１４…
…スイングアーム、１６……支軸部、１７……当
接部、２１……カムシヤフト、２２……カム、２
３……スプリング。 FIG. 1 is a sectional view showing a valve train structure according to an embodiment of the present invention. 2... Combustion chamber, 3... Intake port, 4... Intake valve, 5... Valve section, 6... Valve stem, 8...
...Valve stem head, 10...Upper seat,
11... Engaging portion, 12... Spring seat, 14...
...Swing arm, 16... Support shaft portion, 17... Contact portion, 21... Camshaft, 22... Cam, 2
3...Spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 燃焼室に開口する吸気あるいは排気ポートを開
閉する弁部の上方にバルブステムを有する吸、排
気バルブと、上記バルブステムの頭部付近に取付
けられるアツパーシートと、該アツパーシートの
下方に位置しアツパーシートを介して上記吸、排
気バルブを上方へ付勢するスプリングと、一端に
支軸部を有し他端に上記バルブステム頭部に当接
する当接部を有するスイングアームと、該スイン
グアームの支軸部と当接部の間に軸支されカムシ
ヤフトのカムと当接するローラーとを備えたエン
ジンの動弁構造において、上記アツパーシートに
て上記スプリングからの付勢力を受けるスプリン
グ座を上記バルブステムと係合する係合部より下
方に形成するとともに、上記アツパーシートの形
状を上記係合部からスプリング座にかけて上記バ
ルブステムの軸心に対して徐々に外方へ広がる形
状としたことを特徴とするエンジンの動弁構造。 Intake and exhaust valves have valve stems above the valve parts that open and close intake or exhaust ports opening into the combustion chamber, an upper seat attached near the head of the valve stem, and an upper seat located below the upper seat. a spring that urges the intake and exhaust valves upward; a swing arm having a support shaft portion at one end and an abutment portion contacting the valve stem head at the other end; and a support shaft portion of the swing arm. In an engine valve operating structure including a roller that is pivotally supported between a contact portion and contacts a cam of a camshaft, a spring seat that receives an urging force from the spring at the upper seat is engaged with the valve stem. A valve train for an engine, characterized in that the upper seat is formed below the engaging portion, and the shape of the upper seat gradually widens outward from the engaging portion to the spring seat with respect to the axis of the valve stem. structure.
JP1988009117U 1988-01-27 1988-01-27 Engine valve structure Expired - Lifetime JPH0629442Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988009117U JPH0629442Y2 (en) 1988-01-27 1988-01-27 Engine valve structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988009117U JPH0629442Y2 (en) 1988-01-27 1988-01-27 Engine valve structure

Publications (2)

Publication Number Publication Date
JPH01114904U true JPH01114904U (en) 1989-08-02
JPH0629442Y2 JPH0629442Y2 (en) 1994-08-10

Family

ID=31215585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988009117U Expired - Lifetime JPH0629442Y2 (en) 1988-01-27 1988-01-27 Engine valve structure

Country Status (1)

Country Link
JP (1) JPH0629442Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6449943B1 (en) 2017-06-30 2019-01-09 ヤマハ発動機株式会社 Valve spring retainer and internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6432008A (en) * 1987-07-28 1989-02-02 Mitsubishi Motors Corp Tappet valve mechanism with inclined spring seat face

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6432008A (en) * 1987-07-28 1989-02-02 Mitsubishi Motors Corp Tappet valve mechanism with inclined spring seat face

Also Published As

Publication number Publication date
JPH0629442Y2 (en) 1994-08-10

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