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Patent Searching and Data


Title:
内燃機関の可変動弁装置
Document Type and Number:
Japanese Patent JP4590746
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the manufacturing cost of a variable valve device provided with a lift/operation angle variable mechanism and a phase variable mechanism while minimizing the performance deterioration in the device. SOLUTION: The variable valve device has a valve lift/operation angle variable mechanism capable of controlling simultaneous and continuous expansion or reduction of the lift/operation angle of a valve in an internal combustion engine and a phase variable mechanism for advancing or delaying the phase of the lift center angle of the valve, and is characterized in that when the ratio of the controllable range of each variable mechanism to a maximum variable amount variable in each mechanism is defined as a variable ratio, the variable ratio is changed by the temperature of the engine.

Inventors:
竹村 信一
青山 俊一
野原 常靖
杉山 孝伸
Application Number:
JP2001025105A
Publication Date:
December 01, 2010
Filing Date:
February 01, 2001
Export Citation:
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Assignee:
日産自動車株式会社
International Classes:
F01L1/18; F02D13/02; F01L1/34; F01L13/00; F02D41/06; F02D45/00
Domestic Patent References:
JP2000234533A
JP8270470A
JP2000008915A
JP2000034913A
Attorney, Agent or Firm:
橋本 剛
小林 博通
富岡 潔