Hydraulic apparatus

Details Hydraulic apparatus Hydraulic apparatus

2007-06-19

2007-06-19

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

With control means for structure storing work driving energy

C060S466000, C060S468000

Reexamination Certificate

active

10531426

ABSTRACT:
A hydraulic system10of the present invention has a hydraulic pump driven by a driving source14, a hydraulic pump motor52driven by an operating oil discharged from the hydraulic pump and flowing in an oil path50, an inertial body60connected to a rotary shaft of the hydraulic pump motor, an oil path62connected between an outlet port of the hydraulic pump motor and a load22, an unloading oil path64branched from the oil path62, and an on-off valve68inserted in the unloading oil path. In this configuration, as the on-off valve is opened and closed, a high pressure is generated in the oil path62by making use of kinetic energy of the inertial body. The inertial body is driven by hydraulic power and the inertial body is separated from the driving source, which also provides an effect of increasing degrees of freedom for an instrument layout.

REFERENCES:
patent: 53-036004 (1978-04-01), None
patent: 53-036005 (1978-04-01), None
patent: 60-121503 (1985-08-01), None
patent: 60-159464 (1985-08-01), None
patent: 06-287952 (1994-10-01), None
patent: 2003-130006 (2003-05-01), None
patent: WO 84/03127 (1984-08-01), None
patent: WO 03/361000 (2003-05-01), None
Takahiko Itoh et al. “The new theory and technology for hydraulic transmission,”The Japan Society of Mechanical Engineers Kanto Shibu, Sep. 2002, pp. 243-244.

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