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Class Information
Number: 60/452
Name: Power plants > Pressure fluid source and motor > Condition responsive control of pump or motor displacement > Pump displacement controlled by pump discharge or motor feed pressure
Description: Apparatus including a variable displacement pump the displacement of which is controlled by structure responsive to the pump discharge pressure.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7610755 |
Hydraulic control apparatus of working machine |
Nov. 3, 2009 |
| 7607297 |
Total power controller |
Oct. 27, 2009 |
| 7584611 |
Control system for hydraulic construction machine |
Sep. 8, 2009 |
| 7555899 |
Regulator device and a valve unit for a hydraulic pump |
Jul. 7, 2009 |
| 7543448 |
Control system for hydraulic construction machine |
Jun. 9, 2009 |
| 7506507 |
Arrangement and a method for controlling a work vehicle |
Mar. 24, 2009 |
| 7467514 |
System and method for controlling shakability of a work tool |
Dec. 23, 2008 |
| 7464545 |
Hydraulic system and work machine comprising such a system |
Dec. 16, 2008 |
| 7458211 |
Hydraulic control system for heavy construction equipment |
Dec. 2, 2008 |
| 7454904 |
Laying apparatus for cables, lines, conductors or suchlike, and relative laying method |
Nov. 25, 2008 |
| 7430859 |
Fluid pump control system for excavators |
Oct. 7, 2008 |
| 7415822 |
Load sense boost device |
Aug. 26, 2008 |
| 7395664 |
Hydraulic system for utility vehicles, in particular agricultural tractors |
Jul. 8, 2008 |
| 7392653 |
Hydraulic control system for working machine |
Jul. 1, 2008 |
| 7386978 |
Method for controlling a hydraulic system of a mobile working machine |
Jun. 17, 2008 |
| 7305821 |
Hydraulic control apparatus |
Dec. 11, 2007 |
| 7272928 |
Hydraulic circuit of construction machinery |
Sep. 25, 2007 |
| 7204085 |
Power source derating component protection system |
Apr. 17, 2007 |
| 7124577 |
Vehicular steering control device |
Oct. 24, 2006 |
| 7093433 |
Laying apparatus for cables, lines, conductors or suchlike, and relative laying method |
Aug. 22, 2006 |
| 7089733 |
Hydraulic control valve system with electronic load sense control |
Aug. 15, 2006 |
| 7076947 |
Hydraulic circuit of construction machinery |
Jul. 18, 2006 |
| 7073328 |
Method for controlling a pressure supply device in a hydraulic circuit |
Jul. 11, 2006 |
| 7051525 |
Method and apparatus for monitoring operation of percussion device |
May. 30, 2006 |
| 7048515 |
Hydraulic drive system and method using a fuel injection control unit |
May. 23, 2006 |
| 7043907 |
Electro-hydraulic actuation system |
May. 16, 2006 |
| 6993904 |
Integrated valve system |
Feb. 7, 2006 |
| 6978607 |
Hydraulic control system |
Dec. 27, 2005 |
| 6976358 |
Circuit for controlling discharge amount of hydraulic pump |
Dec. 20, 2005 |
| 6874318 |
Automatic remote pressure compensation in an open circuit pump |
Apr. 5, 2005 |
| 6848254 |
Method and apparatus for controlling a hydraulic motor |
Feb. 1, 2005 |
| 6823672 |
Control device for construction machine |
Nov. 30, 2004 |
| 6820355 |
Hydraulic control circuit of boom cylinder in work machine |
Nov. 23, 2004 |
| 6782697 |
Pressure-compensating valve with load check |
Aug. 31, 2004 |
| 6782698 |
Steering control unit with low null band load sensing boost |
Aug. 31, 2004 |
| 6769348 |
Hydraulic system with flow priority function |
Aug. 3, 2004 |
| 6752600 |
Fluid system |
Jun. 22, 2004 |
| 6732512 |
Velocity based electronic control system for operating hydraulic equipment |
May. 11, 2004 |
| 6684636 |
Electro-hydraulic pump control system |
Feb. 3, 2004 |
| 6679340 |
Hydraulic tool |
Jan. 20, 2004 |
| 6672055 |
Hydraulic pump control device |
Jan. 6, 2004 |
| RE38355 |
Electrohydraulic control device for double-acting consumer |
Dec. 23, 2003 |
| 6662558 |
Variable delivery control arrangement for a pump |
Dec. 16, 2003 |
| 6644335 |
Precision orificing for pilot operated control valves |
Nov. 11, 2003 |
| 6584770 |
Hydraulic drive system |
Jul. 1, 2003 |
| 6564548 |
Speed control apparatus of working vehicle and speed control method thereof |
May. 20, 2003 |
| 6560962 |
Control system of a hydraulic construction machine |
May. 13, 2003 |
| 6553760 |
Control devices of a hydrostatic transmission |
Apr. 29, 2003 |
| 6516614 |
Method and control device for controlling a hydraulic consumer |
Feb. 11, 2003 |
| 6459976 |
Method and system for controlling steady-state speed of hydraulic cylinders in an electrohydraulic system |
Oct. 1, 2002 |
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