发明名称 |
HYDRAULIC RADIAL PISTON MOTOR |
摘要 |
The invention concerns a hydraulic radial piston motor comprising a cam, a distributor and a cylinder block whereof the cylinders are connected to communication orifices located in a communicating surface of the cylinder block. The directional valve has a distribution surface wherein emerge distribution orifices adapted to communicate with the communication orifices during the relative rotation of the cylinder block and of the distributor. The cam has several lobes each including two ramps (50) having each a convex portion (51) and a concave portion (52). The edge of each distribution orifice has a leading portion (B1) through which the communication of said orifice with the communication orifices is opened, and a separating portion (B2) through which said communication is closed. The leading portion and the separating portion (B1, B2) of the edge of at least some distribution orifices (21A, 23A) have each an edge fitting (53A; 53B) comprising at least a recess (54A; 54B), said edge fittings being different depending on whether they are in angular correspondence with the convex zone (51) or the concave zone (52) of the cam ramp.
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申请公布号 |
WO03056172(A1) |
申请公布日期 |
2003.07.10 |
申请号 |
WO2002FR04494 |
申请日期 |
2002.12.20 |
申请人 |
POCLAIN HYDRAULICS INDUSTRIE;ALLART, BERNARD;BIGO, LOUIS |
发明人 |
ALLART, BERNARD;BIGO, LOUIS |
分类号 |
F03C1/047;F03C1/38;F03C1/40;(IPC1-7):F03C1/04 |
主分类号 |
F03C1/047 |
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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