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21. 发明授权

US5826552A Variable valve timing device 失效
标题翻译：可变气门正时装置
公开(公告)号：US5826552A
公开(公告)日：1998-10-27
申请号：US988668
申请日：1997-12-11
申请人： Yuji Noguchi , Kongo Aoki , Katsuhiko Eguchi
发明人： Yuji Noguchi , Kongo Aoki , Katsuhiko Eguchi
IPC分类号： F01L1/34 , F01L1/344
CPC分类号： F01L1/3442 , Y10T74/2102
摘要： A variable valve timing device includes a rotation shaft and a rotation transmitting member rotatably mounted thereon so as to define a pressure chamber between the shaft and the member. The pressure chamber is divided by a vane extending from the shaft into an advance angle space and a delay angle space. Differentiating pressures in both spaces establishes rotation of the shaft, which enables an adjustment of the phase angle between the shaft and the member. A retracting bore and a receiving bore are formed in the member and the shaft, respectively. A locking valve and a piston are fitted in the retracting bore and the receiving bore, respectively. A fluid passage is formed which extends to a boundary portion between the piston and the locking valve.
摘要翻译：可变气门正时装置包括旋转轴和可旋转地安装在其上的旋转传递构件，以便在轴和构件之间限定压力室。压力室由从轴延伸到提前角空间和延迟角空间的叶片分开。两个空间中的微分压力建立了轴的旋转，这使得能够调节轴和构件之间的相位角。分别在构件和轴中形成有缩回孔和接收孔。锁定阀和活塞分别装配在收缩孔和收纳孔中。形成流体通道，其延伸到活塞和锁定阀之间的边界部分。

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