Power plants – Pressure fluid source and motor – With control means for structure storing work driving energy
Reexamination Certificate
2007-08-07
2009-11-10
Leslie, Michael (Department: 3745)
Power plants
Pressure fluid source and motor
With control means for structure storing work driving energy
C060S421000
Reexamination Certificate
active
07614224
ABSTRACT:
A hydraulic circuit of a hybrid type industrial vehicle drivable by an engine and an electric motor is disclosed. A generator motor is driven by the engine and generates electricity. A cargo handling hydraulic pump is actuated in conjunction with an operation of the generator motor and supplies hydraulic oil to a cargo handling circuit. Electricity generated by the generator motor is stored in a battery and drives a steering electric motor. A steering hydraulic pump is actuated in conjunction with an operation of the steering electric motor and supplies hydraulic oil to a steering circuit. A bypass passage connects the cargo handling circuit and the steering circuit to each other, and supplies the hydraulic oil of the cargo handling circuit to the steering circuit. A switching valve is located in the bypass passage.
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Kabushiki Kaisha Toyota Jidoshokki
Leslie Michael
Woodcock & Washburn LLP
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