Dual pump transmission

Details Dual pump transmission Dual pump transmission

2007-06-12

2007-06-12

Freay, Charles G. (Department: 3746)

Pumps

Three or more cylinders arranged in parallel, radial, or...

C092S071000, C060S484000

Reexamination Certificate

active

11110055

ABSTRACT:
A dual pump apparatus having two pumps mounted in a housing, where the housing comprises two elements mounted on opposite sides of a hydraulic mounting member or center section. The pumps are mounted on one side of the hydraulic mounting member in a pump cavity, and the center section and second housing element form a gear cavity in which gears to connect the two pump input shafts are located. Various charge pumps or auxiliary pump configurations are disclosed, including one embodiment where the input shaft gears themselves may act as a charge pump for the pump assembly.

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