US Patent 6964162 Hydraulic pressure generating apparatus
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Patent abstract
A hydraulic pressure generating apparatus includes a hydraulic oil feed line for feeding hydraulic oil with high pressure from an oil tank to a hydraulic pressure control system of a generator by an oil feeding pump unit, a hydraulic oil return line for returning drain oil from the hydraulic pressure control system to the oil tank, and a circulation line for circulating and purifying the hydraulic oil of the oil tank by a circulating pump unit. In such apparatus, the hydraulic oil is flame resistant hydraulic oil which is hardly deteriorated by direct heating, and the flame resistant hydraulic oil is heated by a heater disposed in the oil tank.
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Patent Inventor Names
Atsushi Narabe0
Makoto Takahashi0
Osamu Shindo0
Date of Patent
November 15, 2005
0Patent Application Number
107215450
Date Filed
November 26, 2003
0Patent Primary Examiner
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US Patent 6964162 Hydraulic pressure generating apparatus
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