Hydraulic system having pressure compensated bypass

Details Hydraulic system having pressure compensated bypass Hydraulic system having pressure compensated bypass

2008-01-22

2008-01-22

Kershteyn, Igor (Department: 3745)

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

C091S361000

Reexamination Certificate

active

07320216

ABSTRACT:
The present disclosure is directed to a hydraulic system. The system includes a first source of pressurized fluid and at least one fluid actuator. The system also includes a first valve disposed between the first source and the at least one fluid actuator being configured to selectively communicate pressurized fluid from the first source to a source of low pressure. The system further includes a controller configured to determine a first amount of displacement of the first valve, determine a second amount of displacement of the first valve, and modify the first amount of displacement as a function of the second amount of displacement when a first pressure is less than or equal to a pressure of pressurized fluid acting on the at least one fluid actuator.

REFERENCES:
patent: 3366202 (1968-01-01), James
patent: 4046270 (1977-09-01), Baron et al.
patent: 4222409 (1980-09-01), Budzich
patent: 4250794 (1981-02-01), Haak et al.
patent: 4416187 (1983-11-01), Nystrom
patent: 4437385 (1984-03-01), Kramer et al.
patent: 4480527 (1984-11-01), Lonnemo
patent: 4581893 (1986-04-01), Lindbom
patent: 4586330 (1986-05-01), Watanabe et al.
patent: 4623118 (1986-11-01), Kumar
patent: 4662601 (1987-05-01), Andersson
patent: 4706932 (1987-11-01), Yoshida et al.
patent: 4747335 (1988-05-01), Budzich
patent: 4799420 (1989-01-01), Budzich
patent: 5079919 (1992-01-01), Nakamura et al.
patent: 5137254 (1992-08-01), Aardema et al.
patent: 5152142 (1992-10-01), Budzich
patent: 5211196 (1993-05-01), Schwelm
patent: 5212950 (1993-05-01), Shirai et al.
patent: 5277027 (1994-01-01), Aoyagi et al.
patent: 5287794 (1994-02-01), Andersson
patent: 5297381 (1994-03-01), Eich et al.
patent: 5313873 (1994-05-01), Gall et al.
patent: 5350152 (1994-09-01), Hutchison et al.
patent: 5366202 (1994-11-01), Lunzman
patent: 5447093 (1995-09-01), Budzich
patent: 5477677 (1995-12-01), Krnavek
patent: 5537818 (1996-07-01), Hosseini et al.
patent: 5540049 (1996-07-01), Lunzman
patent: 5553452 (1996-09-01), Snow et al.
patent: 5568759 (1996-10-01), Aardema
patent: 5678470 (1997-10-01), Koehler et al.
patent: 5701933 (1997-12-01), Lunzman
patent: 5784945 (1998-07-01), Krone et al.
patent: 5813226 (1998-09-01), Krone
patent: 5813309 (1998-09-01), Taka et al.
patent: 5857330 (1999-01-01), Ishizaki et al.
patent: 5868059 (1999-02-01), Smith
patent: 5873244 (1999-02-01), Cobo et al.
patent: 5878647 (1999-03-01), Wilke et al.
patent: 5890362 (1999-04-01), Wilke
patent: 5946910 (1999-09-01), Hayashi et al.
patent: 5947140 (1999-09-01), Aardema et al.
patent: 5960695 (1999-10-01), Aardema et al.
patent: 5974796 (1999-11-01), Ishikawa et al.
patent: 6009708 (2000-01-01), Miki et al.
patent: 6026730 (2000-02-01), Yoshida et al.
patent: 6082106 (2000-07-01), Hamamoto
patent: 6216456 (2001-04-01), Mitchell
patent: 6275757 (2001-08-01), Watanabe et al.
patent: 6367365 (2002-04-01), Weichert et al.
patent: 6467264 (2002-10-01), Stephenson et al.
patent: 6502393 (2003-01-01), Stephenson et al.
patent: 6502500 (2003-01-01), Yoshino
patent: 6516614 (2003-02-01), Knoll
patent: 6598391 (2003-07-01), Lunzman et al.
patent: 6619183 (2003-09-01), Yoshino
patent: 6655136 (2003-12-01), Holt et al.
patent: 6662705 (2003-12-01), Huang et al.
patent: 6691603 (2004-02-01), Linerode et al.
patent: 6694860 (2004-02-01), Yoshino
patent: 6715402 (2004-04-01), Pfaff et al.
patent: 6718759 (2004-04-01), Tabor
patent: 6725131 (2004-04-01), Lunzman
patent: 6732512 (2004-05-01), Pfaff et al.
patent: 6748738 (2004-06-01), Smith
patent: 6761029 (2004-07-01), Linerode
patent: 6874319 (2005-04-01), Nakatani
patent: 6880332 (2005-04-01), Pfaff et al.
patent: 2003/0121256 (2003-07-01), Mather
patent: 2003/0121409 (2003-07-01), Lunzman et al.
patent: 2003/0125840 (2003-07-01), Lunzman et al.
patent: 2003/0196545 (2003-10-01), Jensen et al.
patent: 2004/0055288 (2004-03-01), Pfaff et al.
patent: 2004/0055289 (2004-03-01), Pfaff et al.
patent: 2004/0055452 (2004-03-01), Tabor
patent: 2004/0055453 (2004-03-01), Tabor
patent: 2004/0055454 (2004-03-01), Pfaff et al.
patent: 2004/0055455 (2004-03-01), Tabor et al.
patent: 1 536 071 (2005-06-01), None
patent: 02613041 (1997-05-01), None
patent: 10306677 (1998-11-01), None

Affiliated with

Also associated with

Rating

Hydraulic system having pressure compensated bypass does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic system having pressure compensated bypass, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic system having pressure compensated bypass will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2784250