发明公开
EP2894295A1 A control ring for a displacement pump and a displacement pump
有权
SteuerringfüreineVerdrängerpumpeundVerdrängerpumpe
- 专利标题： A control ring for a displacement pump and a displacement pump
- 专利标题（中）： SteuerringfüreineVerdrängerpumpeundVerdrängerpumpe
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申请号： EP14150744.2申请日： 2014-01-10
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公开(公告)号： EP2894295A1公开(公告)日： 2015-07-15
- 发明人: Forssell, Jonas , Odenmarck, Christer
- 申请人： Volvo Car Corporation
- 申请人地址： 40531 Göteborg SE
- 专利权人： Volvo Car Corporation
- 当前专利权人： Volvo Car Corporation
- 当前专利权人地址： 40531 Göteborg SE
- 代理机构： Kraenzmer, Martin
- 主分类号： F01C1/10
- IPC分类号： F01C1/10 ; F01C20/14 ; F04C2/10 ; F04C14/14 ; F01B3/00 ; F01B3/10 ; F16H39/36
摘要：
Control ring (210; 310) for controlling the flow of a pressure medium in a displacement pump (200), said control ring (210; 310) is;
• extending along a first rotational axis (ax1),
• a first and a second axial surface (213, 214; 313, 314), wherein
said first axial surface (213; 313) having an interface section (220; 320) provided with at least a first and a second opening (21, 22; 221, 222), which first and second openings (221, 222; 321, 322) are arc shaped and are separated by a first and a second land (215, 216; 315, 316), characterised in, that
said first land (215, 315) is provided with a first tapered groove (), extending from said first opening (221; 321) into said first land (215; 315), and having its broader edge in direction of said first opening (221; 321) and its tip in direction of the other of said second opening (222, 322), wherein said first tapered groove (240; 340) extends into said first land (215; 315) such that an angular distance (ad1, ad2) between said first and second opening over said first land (215; 315) is different at different radial distances (r1, r2).
• extending along a first rotational axis (ax1),
• a first and a second axial surface (213, 214; 313, 314), wherein
said first axial surface (213; 313) having an interface section (220; 320) provided with at least a first and a second opening (21, 22; 221, 222), which first and second openings (221, 222; 321, 322) are arc shaped and are separated by a first and a second land (215, 216; 315, 316), characterised in, that
said first land (215, 315) is provided with a first tapered groove (), extending from said first opening (221; 321) into said first land (215; 315), and having its broader edge in direction of said first opening (221; 321) and its tip in direction of the other of said second opening (222, 322), wherein said first tapered groove (240; 340) extends into said first land (215; 315) such that an angular distance (ad1, ad2) between said first and second opening over said first land (215; 315) is different at different radial distances (r1, r2).
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