发明名称 |
Cam follower piston |
摘要 |
A piston for a hydrostatic machine comprises a cam follower ball in a seating in a piston body. An aperture through the piston body provides access for working fluid to reach the seating to give lubrication and hydrostatic support. A low friction insert of synthetic plastics material in the seating provides a bearing surface for the ball. The insert is retained in the piston body by a lip which prevents or inhibits extrusion of the plastics material under working load pressure.
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申请公布号 |
US4043255(A) |
申请公布日期 |
1977.08.23 |
申请号 |
US19750597984 |
申请日期 |
1975.07.22 |
申请人 |
NATIONAL RESEARCH DEVELOPMENT CORPORATION |
发明人 |
CUNNINGHAM, SINCLAIR UPTON |
分类号 |
F01B3/00;F04B1/12;F16J1/10;F16J1/22;(IPC1-7):F16J1/08 |
主分类号 |
F01B3/00 |
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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