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Class Information
Number: 418/55.1
Name: Rotary expansible chamber devices > Working member has planetary or planetating movement > Helical working member, e.g., scroll
Description: Apparatus in which the working member includes continuous working portions in the form of a spiral either (1) lying in the same plane and having increasing radius or (2) extending axially.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7614860 |
Scroll compressor |
Nov. 10, 2009 |
| 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 |
| 7611345 |
Structure for preventing axial leakage in scroll compressor |
Nov. 3, 2009 |
| 7604465 |
Fluid machine and scroll compressor having a crankshaft with a large diameter shaft section |
Oct. 20, 2009 |
| 7594803 |
Orbit control device for a scroll compressor |
Sep. 29, 2009 |
| 7585164 |
Backflow preventing apparatus for compressor |
Sep. 8, 2009 |
| 7578664 |
Oil supply structure of scroll compressor |
Aug. 25, 2009 |
| 7568897 |
Scroll machine with seal |
Aug. 4, 2009 |
| 7566210 |
Horizontal scroll compressor |
Jul. 28, 2009 |
| 7563510 |
Fluid machinery |
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 |
| 7556482 |
Scroll compressor with enhanced lubrication |
Jul. 7, 2009 |
| 7553140 |
Flanged sleeve guide |
Jun. 30, 2009 |
| 7547195 |
Scroll compressor with high side to low side oil bleed valve |
Jun. 16, 2009 |
| 7544047 |
Compressor with two cooling chambers |
Jun. 9, 2009 |
| 7540726 |
Scroll compressor and method for machining scroll wrap |
Jun. 2, 2009 |
| 7537440 |
Scroll compressor with multiple isolated inlet ports |
May. 26, 2009 |
| 7527484 |
Muffler of scroll compressor |
May. 5, 2009 |
| 7520737 |
Positive-displacement fluid machine |
Apr. 21, 2009 |
| 7510382 |
Apparatus for preventing overheating of scroll compressor |
Mar. 31, 2009 |
| 7497673 |
Scroll fluid machine having forced convection generating portion |
Mar. 3, 2009 |
| 7497674 |
Scroll compressor having shoulder and rotation-preventing portions positioned as different phases |
Mar. 3, 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 |
| 7481632 |
Scroll compressor with an oil passage plug to limit oil flow |
Jan. 27, 2009 |
| 7467933 |
Scroll-type fluid displacement apparatus with fully compliant floating scrolls |
Dec. 23, 2008 |
| 7458152 |
Method of manufacturing an orbiting scroll in a scroll fluid machine |
Dec. 2, 2008 |
| 7458220 |
Complex fluid machine |
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 |
| 7445437 |
Scroll type fluid machine having a first scroll wrap unit with a scroll member and a scroll receiving member, and a second scroll wrap unit engaged with the first scroll wrap unit |
Nov. 4, 2008 |
| 7442016 |
Scroll pump and method of assembling same |
Oct. 28, 2008 |
| 7442017 |
Displacement type compressor having a self-start synchronous motor and start load reducing means |
Oct. 28, 2008 |
| 7442018 |
Compressor having an oil residue pool |
Oct. 28, 2008 |
| 7429167 |
Scroll machine having a discharge valve assembly |
Sep. 30, 2008 |
| 7413422 |
Compressor including pressure relief mechanism |
Aug. 19, 2008 |
| 7404706 |
Scroll fluid machine having oil-supply holes being formed through a reinforcement bearing plate on a rear surface of the orbiting scroll |
Jul. 29, 2008 |
| 7393190 |
Discharge valve system of scroll compressor |
Jul. 1, 2008 |
| 7393191 |
Internal refrigerant gas circulation apparatus for a closed-type scroll compressor |
Jul. 1, 2008 |
| 7390180 |
Oil pumping device of hermetic compressor |
Jun. 24, 2008 |
| 7390179 |
Scroll machine having counterweights with changeable cavity |
Jun. 24, 2008 |
| 7387503 |
Scroll fluid machine having a fixed scroll with a heat-releasing projection |
Jun. 17, 2008 |
| 7384250 |
Oil discharge preventing apparatus of scroll compressor |
Jun. 10, 2008 |
| 7381037 |
Apparatus for varying capacity of scroll compressor |
Jun. 3, 2008 |
| 7377759 |
Scroll fluid machine with a self-rotation-preventing device having ears for an orbiting scroll |
May. 27, 2008 |
| 7371058 |
Oil feeding propeller of scroll compressor |
May. 13, 2008 |
| 7371059 |
Scroll compressor with discharge valve |
May. 13, 2008 |
| 7364418 |
Scroll fluid machine having an adjustment member with a deformable element |
Apr. 29, 2008 |
| 7357627 |
Scroll fluid machine |
Apr. 15, 2008 |
| 7344365 |
Scroll compressor with bypass holes communicating with an intake chamber |
Mar. 18, 2008 |
| 7344364 |
Fluid machine |
Mar. 18, 2008 |
| 7341439 |
Scroll fluid machine having an adiabatic expansion chamber |
Mar. 11, 2008 |
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