发明名称 |
Fluid supply system for vehicles |
摘要 |
A single hydraulic pump (6) is employed in a vehicle for supplementing fluid to a hydrostatic transmission (1) and for supplying fluid to a fluid-operated clutch (2) and to high pressure-actuated hydraulic actuators (3, 4, 5). Fluid discharge path (7) of the pump is connected to the hydrostatic transmission through a pressure-reducing valve (8). Fluid drain path (9) of the reducing valve is fashioned to a fluid supply path for the clutch. A second fluid supply path (11) is connected to the discharge path for supplying fluid to the hydraulic actuators and include a relief valve (12) or orifice (12A) for maintaining fluid pressure in the discharge path higher than the output pressure of the reducing valve. A high pressure relief valve (10) for establishing fluid pressure to be applied to the actuators is connected to the discharge path for minimizing a discharge pressure required to the pump.
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申请公布号 |
US5069037(A) |
申请公布日期 |
1991.12.03 |
申请号 |
US19900613082 |
申请日期 |
1990.11.14 |
申请人 |
KANZAKI KOKYUKOKI MFG. CO., LTD. |
发明人 |
SAKIGAWA, SHIGENORI;OHASHI, RYOTA;SHIBATA, JIRO;KAWAMURA, MASAHISA |
分类号 |
B60K17/10;B60K17/28;B60K25/02;B62B13/18;F15B11/17 |
主分类号 |
B60K17/10 |
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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