发明名称 |
Hydraulic control apparatus for a servo-motor, particularly for vehicle steering |
摘要 |
The invention relates to a steering control unit for a bidirectional servomotor which is connectable to steerable wheels. A steering wheel controlled quantity setting unit of a known type has ports connectable to a pump and a return tank and two control ports through which metered quantities of fluid flow to opposite sides of the servomotor and to other parts of the apparatus for actuating the servomotor. A directional control valve for selectively directing pressurized fluid from a power circuit to opposite sides of the servomotor is controlled by a control circuit containing the setting unit. A utility valve having the pressure regulating and control and power valve capabilities required for this type of apparatus is characterized by having only a single slide spool for performing all of these functions.
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申请公布号 |
US4535678(A) |
申请公布日期 |
1985.08.20 |
申请号 |
US19820419154 |
申请日期 |
1982.09.16 |
申请人 |
DANFOSS A/S |
发明人 |
THOMSEN, SVEND E.;CHRISTENSEN, THORKILD |
分类号 |
F15B9/08;B62D5/07;B62D5/087;B62D5/09;F16K17/22;(IPC1-7):F15B13/042 |
主分类号 |
F15B9/08 |
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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