Charge pump for a hydraulic pump

Details Charge pump for a hydraulic pump Charge pump for a hydraulic pump

2007-10-09

2007-10-09

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

C091S499000, C417S206000

Reexamination Certificate

active

10869276

ABSTRACT:
A charge pump design for a hydraulic drive apparatus such as a hydrostatic transmission, integrated hydrostatic transaxle or pump having a rotatable pump cylinder block mounted in a sump and connected to a hydraulic circuit by means of a center section or the like. A fluid gallery for charge fluid is in communication with the hydraulic circuit and the charge pump is mounted adjacent to and is driven by the pump cylinder block to provide hydraulic fluid from the sump to the fluid gallery. The charge pump can be of many different styles such as a gerotor, a centrifugal pump or a flexible impeller style.

REFERENCES:
patent: 3202101 (1965-08-01), Tinker et al.
patent: 3250227 (1966-05-01), Kouns
patent: 3667867 (1972-06-01), Boydell et al.
patent: 3669568 (1972-06-01), McLeod
patent: 3690789 (1972-09-01), Spence
patent: 3774505 (1973-11-01), McLeod
patent: 4014628 (1977-03-01), Ruseff et al.
patent: 4037521 (1977-07-01), McLeod
patent: 4212596 (1980-07-01), Ruseff
patent: 4223594 (1980-09-01), Gherner
patent: 4281971 (1981-08-01), Kouns
patent: 4366672 (1983-01-01), Claar et al.
patent: 4934253 (1990-06-01), Berthold et al.
patent: 5123815 (1992-06-01), Larkin et al.
patent: 5176066 (1993-01-01), Kanamaru et al.
patent: 5251536 (1993-10-01), Engel
patent: 5538401 (1996-07-01), Schaffner et al.
patent: 5647266 (1997-07-01), Claas
patent: 6022198 (2000-02-01), Hoffmeister
patent: 6244160 (2001-06-01), Kunze
patent: 6629822 (2003-10-01), Larkin et al.
patent: 6782699 (2004-08-01), Thoma et al.

Affiliated with

Also associated with

Rating

Charge pump for a hydraulic pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Charge pump for a hydraulic pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge pump for a hydraulic pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3902864