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2. 发明公开

EP0353988A1 Valve operating system for internal combustion engine 有权
标题翻译： VentilsteuervorrichtungfürBrennkraftmaschinen。
公开(公告)号：EP0353988A1
公开(公告)日：1990-02-07
申请号：EP89307801.4
申请日：1989-08-01
申请人： HONDA GIKEN KOGYO KABUSHIKI KAISHA
发明人： Matsumoto, Yukihiro K.K. Honda Gijutsu Kenkyusho , Yoshihara, Kenji K.K. Honda Gijutsu Kenkyusho , Kajiura, Tetsuya K.K. Honda Gijutsu Kenkyusho , Niizato, Tomonori K.K. Honda Gijutsu Kenkyusho , Yamada, Noriyuki K.K. Honda Gijutsu Kenkyusho
IPC分类号： F01L31/22 , F01L13/00 , F01L1/26
CPC分类号： F01L1/267 , F01L1/053 , F01L1/26 , F01L2001/34436 , F01M1/16 , F01M9/10 , F01M9/101 , F01M9/102 , F01M9/108 , F02B1/04 , F02B2275/18 , F02F1/4214 , F02F2001/245
摘要： A valve operating system for an internal combustion engine includes a valve operation mode changing mechanism (26i) capable of changing at least one of either the lift amount of opening of an engine valve openably and closably carried in an engine body or the opening or closing timing in accordance with a variation in hydraulic pressure supplied to the changing mechanism. A selector valve (69) is provided and includes a valve element (92) slidably received in a housing (91) attached to the engine body to change the supply of hydraulic pressure to the valve operation mode changing mechanism. The housing of the selector valve is provided with a working oil chamber (95) which receives an oil pressure for driving the valve element (92) toward a position to supply a higher hydraulic pressure to the valve operation mode changing mechanism, the valve element being biased toward a position to supply a lower hydraulic pressure to the valve operation mode changing mechanism. The working oil chamber is connected through a leak jet (109) to a drain chamber provided in the engine body. The leak jet permits the hydraulic pressure to be quickly released from the working oil chamber when the valve element of the selector valve is driven to block the communication between the hydraulic pressure supply source and the valve operation mode changing mechanism, thereby leading to a quick changing operation of the valve operation mode changing mechanism.
摘要翻译：一种用于内燃机的气门操作系统，包括一个能够改变发动机主体可开启和关闭地承载的发动机气门的开启提升量或开启或关闭定时中的至少一个的阀操作模式改变机构（26i）根据提供给变化机构的液压的变化。设置有选择阀（69），并且包括可滑动地容纳在附接到发动机主体的壳体（91）中的阀元件（92），以改变对阀操作模式改变机构的液压供应。选择阀的壳体设置有工作油室（95），其接收用于驱动阀元件（92）的油压朝向阀操作模式改变机构提供较高液压的位置，阀元件为偏压到向阀操作模式改变机构提供较低液压的位置。工作油室通过泄漏喷嘴（109）连接到设置在发动机主体中的排水室。泄漏喷嘴允许当驱动选择阀的阀元件以阻止液压供应源和阀操作模式改变机构之间的连通时液压从工作油室快速释放，从而导致快速变化操作阀操作模式改变机构。

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