基本信息:
- 专利标题： VARIABLE DISPLACEMENT PUMP WITH MULTIPLE PRESSURE CHAMBERS
- 专利标题（中）：具有多个室变
- 申请号：EP14740821.5 申请日：2014-01-15
- 公开(公告)号：EP2946113A2 公开(公告)日：2015-11-25
- 发明人： BOWING, Oliver , KUTZER, Hans, Peter
- 申请人： Stackpole International Engineered Products, Ltd.
- 申请人地址： 1325 Cormorant Rd., Ancaster ON ON L9G 4V5 CA
- 专利权人： Stackpole International Engineered Products, Ltd.
- 当前专利权人： Stackpole International Engineered Products, Ltd.
- 当前专利权人地址： 1325 Cormorant Rd., Ancaster ON ON L9G 4V5 CA
- 代理机构： Carpmaels & Ransford LLP
- 优先权： US201313742237 20130115
- 国际公布： WO2014111813 20140724
- 主分类号： F04C2/324
- IPC分类号： F04C2/324 ; F04B49/16 ; F04C14/18 ; F04C15/00 ; F04C2/22
摘要：
A variable displacement vane pump has a plurality of seals between the inner surface defining the housing's internal chamber and an outer surface of the control ring. The seals define a plurality of pressure regulating chambers comprising a first chamber and a second chamber each for receiving pressurized fluid. The first chamber is defined between a pair of seals located in a circumferential direction of the ring on opposing sides of the pivotal mounting of the control ring and having at least one inlet for receiving pressurized fluid. The circumferential extent of the first chamber is greater along a portion for applying force to the ring in a second pivotal direction than along a portion for applying force in the first pivotal direction such that a net force is applied in the second pivotal direction. The second chamber is defined between a pair of seals located in the circumferential direction of the ring and has at least one outlet for receiving pressurized fluid such that the entire circumferential extent of the second chamber applies force to the ring in the second pivotal direction.
公开/授权文献:
- EP2946113B1 VARIABLE DISPLACEMENT PUMP WITH MULTIPLE PRESSURE CHAMBERS 公开/授权日：2018-04-04