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2. 发明公开

EP0268483A1 Hydraulically operated continuously variable transmission 失效
标题翻译： Hydraulisch betriebener，stufenlosveränderbarerAntrieb。
公开(公告)号：EP0268483A1
公开(公告)日：1988-05-25
申请号：EP87310233.9
申请日：1987-11-19
申请人： HONDA GIKEN KOGYO KABUSHIKI KAISHA
发明人： Yamamoto, Noboru , Furumoto, Mitsumasa , Kawahara, Eiichiro , Ikehjiri, Kenichi
IPC分类号： F16H39/14
CPC分类号： F16H39/14 , F16H61/4139 , F16H61/4165
摘要： In a hydraullically operated, continuously variable transmission, a hydraulic motor (M) and a hydraulic pump (P) are interconnected by a closed hydraulic circuit (C). A lubricating chamber is defined around the sliding surfaces of the swash plate and the plungers of at least one of the hydraulic pump and the hydraulic motor. A hydraulically hermetic chamber (31) is defined in surrounding relation to at least one of the hydraulic pump and the hydraulic motor. The hydraulically hermetic chamber (31) is connected to a replenshing pump (F) by a relief valve (150) which is openable at a pressure level. A pressure control valve (50) is disposed in a discharge passageway of the hydraulically hermetic chamber and openable at a first pressure level lower than the pressure level for the relief valve. A second pressure control valve is connected to a junction between the first pressure control valve and the lubricating chamber and openable at a second pressure level lower than the second pressure level.
摘要翻译：在液压操作的无级变速器中，液压马达（M）和液压泵（P）通过闭合的液压回路（C）相互连接。润滑室围绕旋转斜盘的滑动表面和至少一个液压泵和液压马达的柱塞限定。液压密封室（31）被限定为与液压泵和液压马达中的至少一个相关联。液压密封腔（31）通过可在压力水平打开的安全阀（150）连接到补充泵（F）。压力控制阀（50）设置在液压密封室的排放通道中，并且能够在低于安全阀的压力水平的第一压力水平下打开。第二压力控制阀连接到第一压力控制阀和润滑室之间的接合处，并且可在低于第二压力水平的第二压力水平下打开。

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