A pump apparatus includes: a pump that ejects a hydraulic fluid; and a selector valve that switches a direction of a flow of the hydraulic fluid to be supplied to one of a first chamber and a second chamber into which a cylinder apparatus is internally partitioned by a piston, the first chamber extending during a stroke of the piston for extending the cylinder apparatus, and the second chamber extending during a stroke of the piston for shortening the cylinder apparatus, and the selective valve has, at a channel connected to the second chamber, an orifice that is narrower than a channel connected to the first chamber.
Pump apparatus and hydraulic actuator
2015-09-30
Patent
Electronic Resource
English
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |