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Class Information
Number: 418/29
Name: Rotary expansible chamber devices > With changeable working chamber magnitude > Rotating inner working or reacting member repositioned relative to cylinder
Description: Apparatus in which either the working member or other inner rotatable member forming a part of the working chamber is translatably adjusted with respect to an adjacent surface of the cylinder to thereby vary the volumetric dimension of the working chamber.










Patents under this class:

Patent Number Title Of Patent Date Issued
8562316 Variable capacity vane pump Oct. 22, 2013
8506270 Variable displacement vane pump Aug. 13, 2013
8425210 Two-setting variable-eccentricity vane pump Apr. 23, 2013
8419392 Variable displacement vane pump Apr. 16, 2013
8356986 Compressor Jan. 22, 2013
8348646 Variable displacement vane pump Jan. 8, 2013
8348645 Balanced pressure, variable displacement, dual lobe, single ring, vane pump Jan. 8, 2013
8113804 Vane pump with rotating cam ring and increased under vane pressure Feb. 14, 2012
7862311 Variable displacement vane pump Jan. 4, 2011
7736134 Vane machine, in particular vane pump Jun. 15, 2010
7563084 Rotary fluid machine Jul. 21, 2009
7481631 Variable capacity rotary compressor Jan. 27, 2009
7393695 Collider chamber apparatus and method of use of same Jul. 1, 2008
7354250 Variable capacity rotary compressor Apr. 8, 2008
7341437 Capacity-changing unit of orbiting vane compressor Mar. 11, 2008
7293968 Capacity-changing unit of orbiting vane compressor Nov. 13, 2007
7281914 Variable capacity rotary compressor Oct. 16, 2007
7270521 Variable capacity rotary compressor with pressure adjustment device Sep. 18, 2007
7223081 Variable capacity rotary compressor May. 29, 2007
7192259 Variable capacity rotary compressor Mar. 20, 2007
7186100 Variable capacity rotary compressor Mar. 6, 2007
7175401 Variable capacity rotary compressor Feb. 13, 2007
7153109 Variable capacity rotary compressor Dec. 26, 2006
7150602 Variable capacity rotary compressor Dec. 19, 2006
7150608 Variable capacity rotary compressor Dec. 19, 2006
7140844 Variable capacity rotary compressor Nov. 28, 2006
7134845 Variable capacity rotary compressor Nov. 14, 2006
7070395 Variable capacity rotary compressor Jul. 4, 2006
7059842 Variable capacity rotary compressor Jun. 13, 2006
6962486 Variable capacity rotary compressor Nov. 8, 2005
6860724 Rotary compressor Mar. 1, 2005
6659744 Rotary two axis expansible chamber pump with pivotal link Dec. 9, 2003
6447274 Rotary compressor having a cylinder block of sintered metal Sep. 10, 2002
6109898 Compressor ring attachment Aug. 29, 2000
5306127 Fluid pump with axially adjustable gears Apr. 26, 1994
4958992 Variable capacity swivelling vane pump Sep. 25, 1990
4902209 Sliding segment rotary fluid power translation device Feb. 20, 1990
4887580 Supercharger device for reciprocating internal combustion engines, particularly for motor vehicles Dec. 19, 1989
4684143 Two-wheeled vehicle with hydraulic transmission Aug. 4, 1987
4678413 Variable displacement vane pump or motor Jul. 7, 1987
4357800 Rotary heat engine Nov. 9, 1982
4239466 Rotary machine with adjustable means for its eccentric rotor Dec. 16, 1980
4219314 Rolling piston rotary compressor Aug. 26, 1980
4084926 Rotary gear pump Apr. 18, 1978
3966365 Hydraulic power transmission and braking system for vehicles Jun. 29, 1976











 
 
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