Work vehicle hydraulic system

Details Work vehicle hydraulic system Work vehicle hydraulic system

2007-08-07

2007-08-07

Lopez, F. Daniel (Department: 3745)

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of...

Reexamination Certificate

active

10811042

ABSTRACT:
A hybrid hydraulic system for a work vehicle is provided that includes a first fixed displacement hydraulic pump whose outlet is connected to a priority valve. The priority valve, in turn, directs the pump's flow to a first group of closed center backhoe valves on a primary circuit and a second group of open center loader valves on a secondary circuit. A second hydraulic pump is provided with independent load sensing capability to supplement fluid flow provided by the first pump.

REFERENCES:
patent: 3760689 (1973-09-01), Johnston
patent: 4024710 (1977-05-01), Zelle
patent: 4044786 (1977-08-01), Yip
patent: 4214446 (1980-07-01), Bettin
patent: 4308787 (1982-01-01), Parquet et al.
patent: 4449365 (1984-05-01), Hancock
patent: 4454715 (1984-06-01), Muller et al.
patent: 4470260 (1984-09-01), Miller et al.
patent: 4479349 (1984-10-01), Westveer
patent: 4508013 (1985-04-01), Barbagli
patent: 4809586 (1989-03-01), Gage et al.
patent: 4898078 (1990-02-01), Gage et al.
patent: 5179835 (1993-01-01), Casey et al.
patent: 5333449 (1994-08-01), Takahashi et al.
patent: 5413452 (1995-05-01), Lech et al.
patent: 5471908 (1995-12-01), Lech
patent: 5505275 (1996-04-01), Phillips
patent: 5617724 (1997-04-01), Ko
patent: 5722190 (1998-03-01), Arnold
patent: 5832729 (1998-11-01), Reid et al.
patent: 5896943 (1999-04-01), Christensen
patent: 6029445 (2000-02-01), Lech
patent: 6205781 (2001-03-01), A'Hearn
patent: 6321535 (2001-11-01), Ikari et al.
patent: 6658843 (2003-12-01), Kauss
patent: 2001/0008068 (2001-07-01), Ikari et al.
patent: 2003/0097837 (2003-05-01), Hiraki et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3858144