Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid pump and motor in one of plural paths to or from...
Reexamination Certificate
2008-09-05
2010-10-05
Estremsky, Sherry L (Department: 3655)
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid pump and motor in one of plural paths to or from...
C475S078000
Reexamination Certificate
active
07806796
ABSTRACT:
A power device for motor vehicles installed on a motor vehicle with an internal combustion engine is composed of a first variable displacement hydraulic activator (107), a second variable displacement hydraulic activator (108), a planetary gear mechanism (103) and a mechanical transmission (104). The power device further includes a hydraulic control device (109) and an electronic control device (112) which are used to control the first and second variable displacement hydraulic activators. The control device may carry out the following controls, that is, during the period when the engine outputs power, part of mechanical energy is converted into electric energy via the motor to be stored in the chargeable cell when the power requirement from the motor vehicle increases.
REFERENCES:
patent: 4313351 (1982-02-01), Hagin
Cheng Clement
Estremsky Sherry L
Young Edwin A.
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