JPH0444438U - - Google Patents

Info

Publication number
JPH0444438U
JPH0444438U JP8756990U JP8756990U JPH0444438U JP H0444438 U JPH0444438 U JP H0444438U JP 8756990 U JP8756990 U JP 8756990U JP 8756990 U JP8756990 U JP 8756990U JP H0444438 U JPH0444438 U JP H0444438U
Authority
JP
Japan
Prior art keywords
intake
piston
drive mechanism
utility
dead center
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
JP8756990U
Other languages
Japanese (ja)
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 JP8756990U priority Critical patent/JPH0444438U/ja
Publication of JPH0444438U publication Critical patent/JPH0444438U/ja
Pending 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図は本考案実施例の４サイクルエンジンに
おける各行程のピストン位置と吸排気弁の状態及
び吸排気弁タイミングの説明図、第２図は本考案
の他の実施例における吸排気弁タイミング説明図
、第３図は本考案実施例のＯＨＣ動弁機構におけ
るカム及びバルブ付近の断面図、第４図は従来例
における吸排気弁タイミング説明図である。 １……シリンダ、２……ピストン、３……シリ
ンダヘツド、４……吸気弁、５……排気弁。 Fig. 1 is an explanatory diagram of the piston position, intake/exhaust valve status, and intake/exhaust valve timing for each stroke in a four-cycle engine according to an embodiment of the present invention, and Fig. 2 is an explanation of intake/exhaust valve timing in another embodiment of the present invention. 3 is a cross-sectional view of the vicinity of the cam and valve in the OHC valve mechanism according to the embodiment of the present invention, and FIG. 4 is an explanatory diagram of the intake and exhaust valve timing in the conventional example. 1... Cylinder, 2... Piston, 3... Cylinder head, 4... Intake valve, 5... Exhaust valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ４サイクルエンジンの吸排気弁の駆動機構にお
いて、吸気弁の閉弁時期をピストン下死点近傍部
に設定したことを特徴とする、低ＮＯｘエンジン
。 A low NOx engine characterized in that, in a drive mechanism for intake and exhaust valves of a four-cycle engine, the closing timing of the intake valve is set near the bottom dead center of the piston.
JP8756990U 1990-08-21 1990-08-21 Pending JPH0444438U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8756990U JPH0444438U (en) 1990-08-21 1990-08-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8756990U JPH0444438U (en) 1990-08-21 1990-08-21

Publications (1)

Publication Number Publication Date
JPH0444438U true JPH0444438U (en) 1992-04-15

Family

ID=31820021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8756990U Pending JPH0444438U (en) 1990-08-21 1990-08-21

Country Status (1)

Country Link
JP (1) JPH0444438U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6962049B2 (en) 2002-03-08 2005-11-08 Nissan Motor Co., Ltd. Exhaust manifold for four-cylinder engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0431608A (en) * 1990-05-28 1992-02-03 Honda Motor Co Ltd Valve drive method of internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0431608A (en) * 1990-05-28 1992-02-03 Honda Motor Co Ltd Valve drive method of internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6962049B2 (en) 2002-03-08 2005-11-08 Nissan Motor Co., Ltd. Exhaust manifold for four-cylinder engine
US7520127B2 (en) 2002-03-08 2009-04-21 Nissan Motor Co., Ltd. Exhaust manifold for four-cylinder engine

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