Pump

Details Pump Pump

2007-02-20

2007-02-20

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Including by-pass or restrictor controlling flow circuit

C060S488000, C092S086000, C092S128000, C417S238000

Reexamination Certificate

active

11288892

ABSTRACT:
A hydraulic pump apparatus having an internal sump formed by a housing having an internal portion and an end cap secured to the housing. A rotatable cylinder block is located in the sump and driven by an input shaft extending into the housing. The pump apparatus also has a system of hydraulic porting in fluid communication with the cylinder block. The porting includes a pair of system ports located on a first side of the hydraulic pump apparatus, a fluid inlet on a second side of the hydraulic pump apparatus, opposite the first side, and a bypass valve positioned on the second side adjacent to the fluid inlet. A case drain may also be formed on a third side of the pump apparatus.

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