Dual pump apparatus

Details Dual pump apparatus Dual pump apparatus

2007-08-21

2007-08-21

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Having plural energy input means, pumps or diverse pump outlets

C060S488000

Reexamination Certificate

active

11316314

ABSTRACT:
A dual pump apparatus having first and second pump housings is disclosed. A first end cap is mounted to the first housing to form a first sump and a first pump cylinder block is located therein. A second end cap is mounted to the second housing to form a second sump and a second pump cylinder block is located therein. A charge pump is sandwiched between the end caps to provide charged hydraulic fluid to one or both cylinder blocks. An input shaft having a first end external to the hydraulic pump apparatus extends into both housings to simultaneously drive the first pump cylinder block, the second pump cylinder block and the charge pump.

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