JPS6480708A - Valve system for v-type d.o.h.c. engine - Google Patents

Valve system for v-type d.o.h.c. engine

Info

Publication number
JPS6480708A
JPS6480708A JP23593487A JP23593487A JPS6480708A JP S6480708 A JPS6480708 A JP S6480708A JP 23593487 A JP23593487 A JP 23593487A JP 23593487 A JP23593487 A JP 23593487A JP S6480708 A JPS6480708 A JP S6480708A
Authority
JP
Japan
Prior art keywords
cam
adjuster
bank
leading
inlet
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
JP23593487A
Other languages
Japanese (ja)
Other versions
JP2519475B2 (en
Inventor
Naohide Koshimoto
Junichi Okita
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP23593487A priority Critical patent/JP2519475B2/en
Publication of JPS6480708A publication Critical patent/JPS6480708A/en
Application granted granted Critical
Publication of JP2519475B2 publication Critical patent/JP2519475B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/022—Chain drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement

Abstract

PURPOSE:To prevent sinking of an adjuster by locating a hydraulic lash- adjusting type end pivot on the side of leading the direction of cam rotation. CONSTITUTION:Inlet cam shafts 101, 102 and exhaust cam shafts 103, 104 are located on the symmetrically opposed sides of the center of V-bank. Inlet and exhaust cam shafts of each bank are reversed by a couple of gears. Hydraulic lash-adjusting type end pivots 113-116 are located on the side of leading the direction of cam-rotation. Because points of action of each cam on swing arms 109-112 slide from the valve shaft side to the end pivots, a torque ratio in the beginning of opening the valve is larger on the valve shaft side. The pressure pressing against an adjuster thus becomes smaller, and sinking of the adjuster can prevented.
JP23593487A 1987-09-19 1987-09-19 V type DOHC engine valve operating system Expired - Lifetime JP2519475B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23593487A JP2519475B2 (en) 1987-09-19 1987-09-19 V type DOHC engine valve operating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23593487A JP2519475B2 (en) 1987-09-19 1987-09-19 V type DOHC engine valve operating system

Publications (2)

Publication Number Publication Date
JPS6480708A true JPS6480708A (en) 1989-03-27
JP2519475B2 JP2519475B2 (en) 1996-07-31

Family

ID=16993396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23593487A Expired - Lifetime JP2519475B2 (en) 1987-09-19 1987-09-19 V type DOHC engine valve operating system

Country Status (1)

Country Link
JP (1) JP2519475B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420290A2 (en) * 1989-09-29 1991-04-03 Mazda Motor Corporation Valve driving device of engine
JPH08312311A (en) * 1996-06-03 1996-11-26 Mazda Motor Corp Cam shaft driving device of v-engine
DE10001066A1 (en) * 2000-01-13 2001-03-22 Daimler Chrysler Ag Camshaft drive device for vee engine, with induction camshaft in one cylinder head and exhaust camshaft in other one driven by crankshaft
JP2010133355A (en) * 2008-12-05 2010-06-17 Mitsubishi Motors Corp Multi-bank engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420290A2 (en) * 1989-09-29 1991-04-03 Mazda Motor Corporation Valve driving device of engine
US5097805A (en) * 1989-09-29 1992-03-24 Mazda Motor Corporation Valve driving system for internal combustion engine
JPH08312311A (en) * 1996-06-03 1996-11-26 Mazda Motor Corp Cam shaft driving device of v-engine
DE10001066A1 (en) * 2000-01-13 2001-03-22 Daimler Chrysler Ag Camshaft drive device for vee engine, with induction camshaft in one cylinder head and exhaust camshaft in other one driven by crankshaft
JP2010133355A (en) * 2008-12-05 2010-06-17 Mitsubishi Motors Corp Multi-bank engine

Also Published As

Publication number Publication date
JP2519475B2 (en) 1996-07-31

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