Power plants – Pressure fluid source and motor – With control means for structure storing work driving energy
Reexamination Certificate
2007-07-10
2007-07-10
Kershteyn, Igor (Department: 3745)
Power plants
Pressure fluid source and motor
With control means for structure storing work driving energy
C060S456000, C091S516000
Reexamination Certificate
active
11107953
ABSTRACT:
An electro-hydraulic system for a machine may include a brake charging system including at least one accumulator. A fan drive system may include a fan and a fan motor. A fluid source may be in communication with the brake charging system and the fan drive system. The fluid source may be configured to provide pressurized fluid to the brake charging system and the fan drive system to charge at least one accumulator and to drive a fan motor. A priority valve may be configured to provide pressure from the fluid source to the brake charging system, such that the fluid pressure at the accumulator is maintained at a substantially constant level during normal operating conditions.
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Huang Xiaodong
Khalil Rabie E.
Krone John James
Caterpillar Inc
Finnegan Henderson Farabow Garrett & Dunner
Kershteyn Igor
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