Power plants – Pressure fluid source and motor – Having condition responsive control in a system of distinct...
Reexamination Certificate
2006-05-16
2006-05-16
Lazo, Thomas E. (Department: 3745)
Power plants
Pressure fluid source and motor
Having condition responsive control in a system of distinct...
C060S459000, C060S464000
Reexamination Certificate
active
07043906
ABSTRACT:
A hydraulic apparatus realizes the same function as that of a variable discharge pump by regulating a hydraulic device such as a control valve in a state always operated at a substantially constant number of revolutions with a high efficiency regardless of the type of a hydraulic pump driven by a driving source such as a heat engine or electric motor. This hydraulic apparatus drives a hydraulic pump with a driving source internally or additionally provided with a predetermined amount of inertia, so as to construct a fixed pressure hydraulic source, and further provides peripheral devices corresponding to a required load, so as to open/close a control valve according to a state of a load including an energy accumulating device, a hydraulic motor, or the like such that the load can be supplied with an operating fluid ranging from a low flow rate at a high pressure to a high flow rate at a low pressure.
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Aoyama Kouichi
Itoh Takahiko
Seki Sumiko
Shimada Satoru
Suzuki Shigeru
Lazo Thomas E.
Morgan & Lewis & Bockius, LLP
Saxa Inc.
Yukigawa Institute Co., Ltd.
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