Power plants – Pressure fluid source and motor – With control means for structure storing work driving energy
Reexamination Certificate
2006-08-01
2006-08-01
Lazo, Thomas E. (Department: 3745)
Power plants
Pressure fluid source and motor
With control means for structure storing work driving energy
C180S165000
Reexamination Certificate
active
07082757
ABSTRACT:
A system for transmitting power hydraulically to and from the wheels of a motor vehicle includes an accumulator containing fluid at relatively high pressure, a reservoir containing fluid at lower pressure, and a pump/motor driveably connected to the wheels and having a variable volumetric displacement for pumping fluid between the accumulator and the reservoir. A first circuit connects the inlet to the reservoir and the outlet to the accumulator. A second circuit includes a first path having a low flow rate capacity, a second path having a higher flow rate capacity. A controller switches between pumping operation and motoring operation, opens and closes the first path during motoring operation, and reduces the displacement before switching between pumping operation and motoring operation.
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Carlson Cliff
Chalk Peter
Kepner Ron
Tang Chuanchi
Teslak Chris
Ford Global Technologies LLC
Kelley David B.
Lazo Thomas E.
MacMillan Sobanski & Todd
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