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Class Information
Number: 91/506
Name: Motors: expansible chamber type > Three or more cylinders arranged in parallel radial or conical relationship with rotary transmission axis > Cylinders parallel to rotation axis > Stroke control > By varying reaction plate inclination relative to cylinder axes > Motor operated
Description: Apparatus in which the transmission element is angularly adjusted by means of a motor.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617761 |
Opposing pump/motors |
Nov. 17, 2009 |
| 7503173 |
Control devices for swashplate type variable displacement piston pump |
Mar. 17, 2009 |
| 7373870 |
Universal hybrid engine, compressor and pump, and method of operation |
May. 20, 2008 |
| 7367258 |
Longitudinally adjustable reversible axial piston machine |
May. 6, 2008 |
| 7299738 |
Axial piston machine having a device for the electrically proportional adjustment of the volumetric displacement |
Nov. 27, 2007 |
| 7162948 |
Variable stroke assembly balancing |
Jan. 16, 2007 |
| 7121188 |
Axial piston machine having a device for the electrically proportional adjustment of its volumetric displacement |
Oct. 17, 2006 |
| 7076948 |
Hydraulic continuously variable transmission |
Jul. 18, 2006 |
| 7021904 |
Swash plate type hydraulic pump or motor |
Apr. 4, 2006 |
| 6957604 |
Axial-piston drive system with a continuously adjustable piston stroke |
Oct. 25, 2005 |
| 6951164 |
Swash plate type servo device for a plunger hydraulic unit |
Oct. 4, 2005 |
| 6925799 |
Speed control apparatus for hydraulic actuator |
Aug. 9, 2005 |
| 6893228 |
Axial piston pump with fluid bearing arrangement |
May. 17, 2005 |
| 6880450 |
Axial piston engine comprising a return device |
Apr. 19, 2005 |
| 6874994 |
Hydraulic pump and motor |
Apr. 5, 2005 |
| 6725658 |
Adjusting device of a swashplate piston engine |
Apr. 27, 2004 |
| 6715997 |
Housing for a rotary hydraulic unit with a servo piston |
Apr. 6, 2004 |
| 6698196 |
Drive circuit for fluid motor |
Mar. 2, 2004 |
| 6655255 |
Swashplate arrangement for an axial piston pump |
Dec. 2, 2003 |
| 6629488 |
Method and apparatus for controlling axial device |
Oct. 7, 2003 |
| 6553891 |
Hydrostatic variable displacement pump having springs arranged outside the servocylinder pressure chamber |
Apr. 29, 2003 |
| 6374722 |
Apparatus and method for controlling a discharge pressure of a variable displacement hydraulic pump |
Apr. 23, 2002 |
| 6354809 |
Variable swash plate compressor |
Mar. 12, 2002 |
| 6283721 |
Production of hydrostatic axial piston machines by means of stepper motors |
Sep. 4, 2001 |
| 6279452 |
Axial piston motor with bearing flushing |
Aug. 28, 2001 |
| 6276134 |
Apparatus for controlling a plurality of hydraulic motors and a clutch |
Aug. 21, 2001 |
| 6260468 |
Single-piece proportional control |
Jul. 17, 2001 |
| 6257119 |
Ball joint for servo piston actuation in a bent axis hydraulic unit |
Jul. 10, 2001 |
| 6206650 |
Variable axial piston displacement machine with maximized swivel angle |
Mar. 27, 2001 |
| 6186747 |
Axial plunger slurry pump |
Feb. 13, 2001 |
| 6174139 |
Axial piston machine with damping element for the inclined or wobble plate |
Jan. 16, 2001 |
| 6158969 |
Hydrostatic pump and disable control therefor |
Dec. 12, 2000 |
| 6099273 |
Hydraulic motor with function selector |
Aug. 8, 2000 |
| 6024541 |
Hydraulic axial piston pumps |
Feb. 15, 2000 |
| 5979294 |
Method and apparatus for controlling axial pump |
Nov. 9, 1999 |
| 5918529 |
Hydrostatic axial piston machine utilizing bridge segments which are radially inward of the piston bores |
Jul. 6, 1999 |
| 5881629 |
Control device for variable hydraulic machines |
Mar. 16, 1999 |
| 5850775 |
Pump piston |
Dec. 22, 1998 |
| 5826488 |
Swash plate angle changing apparatus for a piston pump/motor of swash plate type |
Oct. 27, 1998 |
| 5799562 |
Regenerative braking method and apparatus therefor |
Sep. 1, 1998 |
| 5794515 |
Swashplate control system for an axial piston pump |
Aug. 18, 1998 |
| 5678405 |
Continuously variable hydrostatic transmission |
Oct. 21, 1997 |
| 5673606 |
Swash plate actuating device for axial piston pumps and motors |
Oct. 7, 1997 |
| 5649468 |
Swash plate type hydraulic motor having offset swash plate pivot axis |
Jul. 22, 1997 |
| 5630707 |
Variable displacement mechanism for swash plate type hydraulic pump and motor |
May. 20, 1997 |
| 5584214 |
Transmission having a static, hydraulic continuously-variable-speed transmission mechanism |
Dec. 17, 1996 |
| 5440878 |
Variable hydraulic machine |
Aug. 15, 1995 |
| 5285641 |
Flow dividing pump |
Feb. 15, 1994 |
| 5251537 |
Hydraulic driving system |
Oct. 12, 1993 |
| 5251536 |
Axial piston pump with off-center pivot |
Oct. 12, 1993 |
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