发明名称 |
VARIABLE DISPLACEMENT LUBRICANT VANE PUMP |
摘要 |
<p>A variable displacement lubricant vane pump (10) is provided with a pump rotor (20) rotating around a rotor axis (21) and with a rotor body (24) provided with vane slits (25) wherein shiftable rotor vanes (26) are arranged. A shiftable control ring (30) is provided wherein the slidable vanes (26) are rotating, the control ring (30) being actuated to control the eccentricity of the control ring (30) with respect to the rotor axis (21). A metal pump housing (12) including two parallel sidewalls (16, 17) is provided which axially cover the rotor body (24), the rotor vanes (26) and the control ring (30). The control ring (30; 30') is provided with a control ring body (31; 31') made out of the same plastic material with a thermal expansion coefficient a P of 65% to 150% of the thermal expansion coefficient a M of the housing metal.</p> |
申请公布号 |
EP2926008(A1) |
申请公布日期 |
2015.10.07 |
申请号 |
EP20130796066 |
申请日期 |
2013.11.27 |
申请人 |
PIERBURG PUMP TECHNOLOGY GMBH |
发明人 |
TESTA, ALESSANDRO;ARMENIO, GIACOMO |
分类号 |
F04C2/348;F04C14/22 |
主分类号 |
F04C2/348 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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