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Class Information
Number: 91/504
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
Description: Apparatus in which there is provided means to selectively vary the length of the reciprocating stroke between said cylinders and their respective relatively reciprocating pistons.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7076948 |
Hydraulic continuously variable transmission |
Jul. 18, 2006 |
| 7056101 |
Inline tandem pump |
Jun. 6, 2006 |
| 6893228 |
Axial piston pump with fluid bearing arrangement |
May. 17, 2005 |
| 6874994 |
Hydraulic pump and motor |
Apr. 5, 2005 |
| 6810665 |
Stirling engine with variable stroke |
Nov. 2, 2004 |
| 6736048 |
Hydrostatic axial piston machine |
May. 18, 2004 |
| 6672844 |
Apparatus and method for controlling variable displacement compressor |
Jan. 6, 2004 |
| 6640687 |
Control system for hydrostatic pump |
Nov. 4, 2003 |
| 6520066 |
Adjusting means for an axial piston machine of inclined-axis construction |
Feb. 18, 2003 |
| 6510779 |
Electronic bore pressure optimization mechanism |
Jan. 28, 2003 |
| 6439857 |
Axial piston compressor |
Aug. 27, 2002 |
| 6431841 |
Compressor with a part of a spring chamber in a rear housing |
Aug. 13, 2002 |
| 6413055 |
Swashplate position assist mechanism |
Jul. 2, 2002 |
| 6360647 |
Hydraulic rotating axial piston engine |
Mar. 26, 2002 |
| 6312231 |
Axial piston pump with oblique disk |
Nov. 6, 2001 |
| 6203283 |
Single piece yoke stroking device for bent axis type hydraulic pumps and variable motors |
Mar. 20, 2001 |
| 5904044 |
Fluid expander |
May. 18, 1999 |
| 5894782 |
Compressor |
Apr. 20, 1999 |
| 5554007 |
Variable displacement axial piston hydraulic unit |
Sep. 10, 1996 |
| 5438831 |
Axle driving apparatus |
Aug. 8, 1995 |
| 5184536 |
Swash plate type piston pump/motor |
Feb. 9, 1993 |
| 5182978 |
Bent axis type variable displacement hydraulic machine |
Feb. 2, 1993 |
| 5096157 |
Planetary roller type flow control valve |
Mar. 17, 1992 |
| 5094144 |
Bent axis type variable displacement hydraulic machine |
Mar. 10, 1992 |
| 5085128 |
Variable displacement bent axis type hydraulic machine |
Feb. 4, 1992 |
| 5083431 |
Torque controlled variable displacement hydraulic motor |
Jan. 28, 1992 |
| 5079993 |
Axial piston machine |
Jan. 14, 1992 |
| 5070696 |
Torque transmission device for variable speed control |
Dec. 10, 1991 |
| 5033358 |
Axial piston type motor |
Jul. 23, 1991 |
| 5024143 |
Swashplate type hydraulic axial piston machine having a tracking device for the cage of the segmental rolling contact bearing of the swashplate |
Jun. 18, 1991 |
| 5017095 |
Power transmission |
May. 21, 1991 |
| 4920860 |
Device for biasing a cylinder drum of a variable-displacement axial piston machine against an associated slide valve member |
May. 1, 1990 |
| 4788902 |
Thrust hydrostatic bearing device for use in axial piston machine |
Dec. 6, 1988 |
| 4593604 |
Driving device of a rotating cylinder block of a pump or hydraulic motor |
Jun. 10, 1986 |
| 4493189 |
Differential flow hydraulic transmission |
Jan. 15, 1985 |
| 4487108 |
Variable displacement pump/motor |
Dec. 11, 1984 |
| 4361077 |
Variable positive displacement fluid motor/pump apparatus |
Nov. 30, 1982 |
| 4252508 |
Pump unit |
Feb. 24, 1981 |
| 4223594 |
Hydraulic motor |
Sep. 23, 1980 |
| 4185508 |
Motion change transmission |
Jan. 29, 1980 |
| 4164169 |
Axial-piston machine having a cylinder drum and a reversing device |
Aug. 14, 1979 |
| 4007662 |
Axial piston machine of oblique-axle construction with tiltable cylinder drum |
Feb. 15, 1977 |
| 3998130 |
Pressure driven motor |
Dec. 21, 1976 |
| 3935796 |
Variable hydraulic pumping apparatus |
Feb. 3, 1976 |
| 3933083 |
Variable displacement cylindrical pump |
Jan. 20, 1976 |
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