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Class Information
Number: 418/57
Name: Rotary expansible chamber devices > Working member has planetary or planetating movement > Adjustable or resiliently biased working member
Description: Apparatus in which means is provided to either (1) selectively move the working member with respect to the cylinder wall surface or (2) positively urge the working member into sealing engagement with the cylinder wall surface by a spring or other biasing means as the working member moves incident to the expansion and contraction of the working chamber.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7614859 |
Scroll compressor with certain pressure ratio between discharge pressure and suction pressure and with certain ratio of diameter of orbiting mirror plate and outer diameter of the annular seal |
Nov. 10, 2009 |
| 7611344 |
Sealing tabs on orbiting scroll |
Nov. 3, 2009 |
| 7611345 |
Structure for preventing axial leakage in scroll compressor |
Nov. 3, 2009 |
| 7568897 |
Scroll machine with seal |
Aug. 4, 2009 |
| 7563080 |
Rotary compressor |
Jul. 21, 2009 |
| 7556483 |
Electronic compressor having a reservoir chamber and an oil return passage for connecting the reservoir chamber with a suction chamber |
Jul. 7, 2009 |
| 7553140 |
Flanged sleeve guide |
Jun. 30, 2009 |
| 7549851 |
Rotary fluid machine having a pair of rotation mechanisms and a partition plate disposed between the rotation mechanisms |
Jun. 23, 2009 |
| 7547202 |
Scroll compressor with capacity modulation |
Jun. 16, 2009 |
| 7491045 |
Scroll compressor having a position adjustment device urging the stationary scroll towards the movable scroll by moving a seal formed between a support and the stationary scroll |
Feb. 17, 2009 |
| 7476092 |
Scroll compressor with tapered slider block |
Jan. 13, 2009 |
| 7467934 |
Axial piston engine with integrated filling pump |
Dec. 23, 2008 |
| 7458788 |
Scroll fluid machine including back-pressure chamber with increased pressure receiving area |
Dec. 2, 2008 |
| 7455508 |
Scroll type fluid machine having counter weight provided on driving bush and sub weight radially protruding from rotary shaft |
Nov. 25, 2008 |
| 7442017 |
Displacement type compressor having a self-start synchronous motor and start load reducing means |
Oct. 28, 2008 |
| 7419370 |
Scroll compressor having a position adjustment device urging the movable scroll towards the stationary scroll by moving a seal formed between a support and the movable scroll |
Sep. 2, 2008 |
| 7384250 |
Oil discharge preventing apparatus of scroll compressor |
Jun. 10, 2008 |
| 7381037 |
Apparatus for varying capacity of scroll compressor |
Jun. 3, 2008 |
| 7363696 |
Method of assembling a sealed type motor-driven compressor |
Apr. 29, 2008 |
| 7364416 |
Scroll type compressor with an enhanced sealing arrangement |
Apr. 29, 2008 |
| 7357627 |
Scroll fluid machine |
Apr. 15, 2008 |
| 7354259 |
Scroll compressor having a valved back pressure chamber and a bypass for overcompression |
Apr. 8, 2008 |
| 7344365 |
Scroll compressor with bypass holes communicating with an intake chamber |
Mar. 18, 2008 |
| 7341440 |
Scroll compressor |
Mar. 11, 2008 |
| 7338264 |
Recesses for pressure equalization in a scroll compressor |
Mar. 4, 2008 |
| 7338265 |
Scroll machine with single plate floating seal |
Mar. 4, 2008 |
| 7331774 |
Back pressure control mechanism of orbiting scroll in scroll compressor |
Feb. 19, 2008 |
| 7326039 |
Apparatus for varying capacity of scroll compressor |
Feb. 5, 2008 |
| 7322807 |
Scroll machine with axially compliant mounting |
Jan. 29, 2008 |
| 7316550 |
Scroll compressor |
Jan. 8, 2008 |
| 7309220 |
Back pressure apparatus for orbiting vane compressors |
Dec. 18, 2007 |
| 7300265 |
Flanged sleeve guide |
Nov. 27, 2007 |
| 7284972 |
Scroll compressor with stop structure to prevent slider block movement |
Oct. 23, 2007 |
| 7278832 |
Scroll compressor with enlarged vapor injection port area |
Oct. 9, 2007 |
| 7275918 |
Scroll apparatus with an axial gap control function |
Oct. 2, 2007 |
| 7273361 |
Coupling structure of eccentric bush of scroll compressor |
Sep. 25, 2007 |
| 7273363 |
Scroll compressor with slider block having recess |
Sep. 25, 2007 |
| 7273362 |
Scroll compressor with an eccentric pin having a higher contact point |
Sep. 25, 2007 |
| 7264453 |
Horizontal scroll compressor having a connecting passage on the opposite side of a suction port for connecting a motor accommodating chamber with a suction chamber |
Sep. 4, 2007 |
| 7247009 |
Scroll compressor with slider block having upper surface over enlarged area |
Jul. 24, 2007 |
| 7229261 |
Scroll compressor having an annular recess located outside an annular seal portion and another recess communicating with suction port of fixed scroll |
Jun. 12, 2007 |
| 7214044 |
Compressor having an oil passage which one end is connected to oil collecting groove and other end is opened to cover end surface of bearing |
May. 8, 2007 |
| 7201568 |
Scroll fluid machine |
Apr. 10, 2007 |
| 7195470 |
Scroll compressor having a supply passage connecting the back pressure chamber to discharge pressure region and passing a clearance at a sliding portion |
Mar. 27, 2007 |
| 7192261 |
Scroll fluid machine having permanent magnets mounted on respective the stationary and orbiting end plates for preventing axial motion of the orbiting scroll |
Mar. 20, 2007 |
| 7189067 |
Scroll compressor having vacuum preventing structure |
Mar. 13, 2007 |
| 7175402 |
Eccentric coupling device in radial compliance scroll compressor |
Feb. 13, 2007 |
| 7163386 |
Scroll compressor having a movable auxiliary portion with contact plane of a stopper portion to contact a pane of the fixed scroll through elastic pressure of high pressure fluid |
Jan. 16, 2007 |
| 7150609 |
Eccentric coupling device in radial compliance scroll compressor |
Dec. 19, 2006 |
| 7140851 |
Axial compliance mechanism of scroll compressor |
Nov. 28, 2006 |
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