Multi-control valve unit
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsAkihiro Kondo, Yoshiyuki Tode, Koki Mibu
Life of this patent
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Abstract
A multi-control valve unit includes a housing with built-in spools that are parallel to each other. The housing includes pilot chambers formed therein, the pilot chambers corresponding to both ends of the spools. Solenoid proportional valves are mounted to the housing, such that the solenoid proportional valves are connected to the respective pilot chambers. A hydraulic pressure generator is mounted to the housing, such that the hydraulic pressure generator is connected to the solenoid proportional valves. The hydraulic pressure generator includes an electric motor and a pump.
Claims3
A multi-control valve unit comprising:
- a housing with built-in spools that are parallel to each other, the housing including first pilot chambers and second pilot chambers formed therein, the first pilot chambers corresponding to one end of the built-in spools, the second pilot chambers corresponding to an other end of the built-in spools;
- first solenoid proportional valves mounted to the housing, such that the first solenoid proportional valves are connected to the respective first pilot chambers;
- second solenoid proportional valves mounted to the housing, such that the second solenoid proportional valves are connected to the respective second pilot chambers;
- and
- a hydraulic pressure generator mounted to the housing, such that the hydraulic pressure generator is connected to the first solenoid proportional valves and the second solenoid proportional valves, the hydraulic pressure generator including an electric motor and a pump, wherein
- the housing includes a housing body and a cover, the housing body being provided with through-holes, in which the respective built-in spools are inserted, the cover being fixed to the housing body in a manner to cover the through-holes from one side of an axial direction of the built-in spools, the cover forming the first pilot chambers, and
- the first solenoid proportional valves and the hydraulic pressure generator are mounted to the cover.
Dependencies are inferred from the claim text.