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Class Information
Number: 60/445
Name: Power plants > Pressure fluid source and motor > Condition responsive control of pump or motor displacement
Description: Apparatus having means by which the amount of motive fluid displaced for each stroke or revolution of a pump or motor device can be adjusted and having structure sensing a condition or position controlling the adjusting means.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7571604 |
Method for shaking a work implement |
Aug. 11, 2009 |
| 7549287 |
Hydrostatic auto/manual speed control |
Jun. 23, 2009 |
| 7536856 |
System for controlling a power output |
May. 26, 2009 |
| 7469534 |
Load control structure for work vehicle |
Dec. 30, 2008 |
| 7430859 |
Fluid pump control system for excavators |
Oct. 7, 2008 |
| 7415821 |
Hydraulic motor unit |
Aug. 26, 2008 |
| 7290390 |
Travel control device for excavators |
Nov. 6, 2007 |
| 7284371 |
Hydraulic control system for working machine |
Oct. 23, 2007 |
| 7269945 |
Method for compensating flow rate at neutral position of operation lever of construction equipment |
Sep. 18, 2007 |
| 7210293 |
Hydrostatic transmission vehicle and hydrostatic transmission controller |
May. 1, 2007 |
| 7178334 |
Hydrostatic vehicle drive system comprising a differential lock |
Feb. 20, 2007 |
| 7134277 |
Driving force distribution apparatus for right and left wheels |
Nov. 14, 2006 |
| 7082758 |
Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof |
Aug. 1, 2006 |
| 7077222 |
Transaxle apparatus and four-wheel driving working vehicle using the apparatus |
Jul. 18, 2006 |
| 7059125 |
Hydraulic controller for construction machine |
Jun. 13, 2006 |
| 7037236 |
Hydraulic transmission vehicle |
May. 2, 2006 |
| 6981371 |
Control device for working machine |
Jan. 3, 2006 |
| 6976357 |
Conduit loss compensation for a distributed electrohydraulic system |
Dec. 20, 2005 |
| 6973779 |
Hydraulic power system for agricultural implement including flow-rate indicator |
Dec. 13, 2005 |
| 6966180 |
Control arrangement and method for a hydraulic system |
Nov. 22, 2005 |
| 6937931 |
Vehicle control system |
Aug. 30, 2005 |
| 6902017 |
Transaxle apparatus and four-wheel driving working vehicle using the apparatus |
Jun. 7, 2005 |
| 6883313 |
Electro-hydraulic pump displacement control with proportional force feedback |
Apr. 26, 2005 |
| 6820355 |
Hydraulic control circuit of boom cylinder in work machine |
Nov. 23, 2004 |
| 6789387 |
System for recovering energy in hydraulic circuit |
Sep. 14, 2004 |
| 6725105 |
Bucket shakeout mechanism for electro-hydraulic machines |
Apr. 20, 2004 |
| 6675577 |
Anti-stall transmission control for utility vehicle |
Jan. 13, 2004 |
| 6564549 |
Displacement control device for hydraulic pump and brake control device for hydraulic motor |
May. 20, 2003 |
| 6527660 |
Method and apparatus to transfer torque at a nominally constant speed to a dynamoelectric machine from a variable speed engine |
Mar. 4, 2003 |
| 6453585 |
Hydraulic drive device of working machine |
Sep. 24, 2002 |
| 6408876 |
Control valve |
Jun. 25, 2002 |
| 6389809 |
Volume control valve of variable displacement hydraulic rotating machine |
May. 21, 2002 |
| 6351945 |
Hydrostatic gear unit |
Mar. 5, 2002 |
| 6311488 |
Cooling fan drive apparatus |
Nov. 6, 2001 |
| 6285939 |
Power train control system |
Sep. 4, 2001 |
| 6282890 |
Hydraulic circuit for construction machines |
Sep. 4, 2001 |
| H1977 |
Closed loop hydraulic system with variable charge pressure |
Aug. 7, 2001 |
| 6212886 |
Hydraulic drive system and directional control valve apparatus in hydraulic machine |
Apr. 10, 2001 |
| 6202411 |
Flow rate control device in a hydraulic excavator |
Mar. 20, 2001 |
| 6182448 |
Speed changing device for hydraulic driving apparatus and speed change control method thereof |
Feb. 6, 2001 |
| 6179570 |
Variable pump control for hydraulic fan drive |
Jan. 30, 2001 |
| 6176085 |
Hydraulic drive system |
Jan. 23, 2001 |
| 6173572 |
Method and apparatus for controlling a bypass valve of a fluid circuit |
Jan. 16, 2001 |
| 6164402 |
Control of pump for hydraulic front wheel drive |
Dec. 26, 2000 |
| 6158969 |
Hydrostatic pump and disable control therefor |
Dec. 12, 2000 |
| 6105367 |
Hydraulic drive system |
Aug. 22, 2000 |
| 5992147 |
Hydraulic control system in construction machine |
Nov. 30, 1999 |
| 5974796 |
Hydraulic circuit system for hydraulic working machine |
Nov. 2, 1999 |
| 5913663 |
Device for regulating the total power of at least two variable displacement hydrostatic pumps |
Jun. 22, 1999 |
| 5907951 |
Hydraulic control system for construction machine |
Jun. 1, 1999 |
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