F04C 2/02

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Description

Class  F04C : ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS


Subclass 2/02: Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C 3/00; with the working-chamber walls at least partly resiliently deformable F04C 5/00; with fluid ring or the like F04C 7/00; rotary-piston pumps specially adapted for elastic fluids F04C 18/00, F04C 19/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B) of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12241670 Multi-compressor system with normally-open valves in oil balancing connectionsMar 13, 23Mar 04, 25Danfoss Commercial Compressors
12146489 Valve assembly for an electrical refrigerant compressorAug 22, 19Nov 19, 24Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg
12129854 CompressorSep 04, 19Oct 29, 24LG Electronics Inc.
12116998 Flexible spinning scroll coupling deviceMay 05, 23Oct 15, 24Air Squared, Inc.
12117002 Scroll compressor having oil supply groove in communication with oil supply hole defined from oil passage to rotating shaft surfaceJan 04, 23Oct 15, 24LG Electronics Inc.
12110891 Scroll compressorFeb 15, 24Oct 08, 24Kabushiki Kaisha Toyota Jidoshokki
12098721 Sealing and compliance in a scroll compressorJun 23, 22Sep 24, 24Copeland Europe GmbH
12049891 Scroll pump having a biasing apparatus for axially movable fixed and orbiting scrolls against each other via first and second pads that formed material from fixed and orbiting scrollsJul 22, 20Jul 30, 24Edwards Limited
12049893 Electric compressor having a compression device with a fixed scroll having a modified scroll floor and a fixed scroll having a modified scroll floorSep 13, 22Jul 30, 24Mahle International GmbH
11988206 Scroll compressor with grooves and auxiliary discharge portsFeb 24, 23May 21, 24Kabushiki Kaisha Toyota Jidoshokki
11990800 Motor-driven compressorJul 05, 22May 21, 24Kabushiki Kaisha Toyota Jidoshokki
11965507 Compressor and valve assemblyFeb 28, 23Apr 23, 24Copeland LP
11965508 Scroll compressorMar 15, 23Apr 23, 24KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
11927186 Scroll compressorJan 04, 23Mar 12, 24LG Electronics Inc.
11923746 Magnetic bearing cooling managementJan 06, 21Mar 05, 24Carrier Corporation
11920589 Scroll compressor including an electrical box containing a wire guiding partDec 08, 21Mar 05, 24Danfoss Commercial Compressors
11846286 Scroll compressorMay 13, 22Dec 19, 23Daikin Industries Ltd.
11846296 Flushing of a touchdown bearingFeb 26, 21Dec 19, 23Carrier Corporation
11815090 Scroll compressorMar 11, 21Nov 14, 23Samsung Electronics Co., Ltd.
11802721 Heat source unit and scroll compressorNov 21, 22Oct 31, 23Daikin Industries Ltd.

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0101,976 SCROLL COMPRESSORSep 16, 24Mar 27, 25Samsung Electronics Co. Ltd.
2025/0101,980 TENSIONING DEVICE FOR A SCROLL COMPRESSORSep 25, 24Mar 27, 25Not available
2025/0035,110 ELECTRIC COMPRESSORJul 17, 24Jan 30, 25Kabushiki Kaisha Toyota Jidoshokki
2024/0405,653 AIR GAP MAGNETIC COUPLING WITH THERMAL ISOLATIONOct 22, 21Dec 05, 24Not available
2024/0337,260 TWIN-TYPE SCROLL FLUID MACHINEMar 01, 24Oct 10, 24Not available
2024/0287,985 SCROLL COMPRESSOR WITH INTERMEDIATE INJECTIONFeb 28, 23Aug 29, 24Not available
2024/0149,048 FLUID PUMP CHANGEABLE IN DIAMETER, IN PARTICULAR FOR MEDICAL APPLICATIONAug 28, 23May 09, 24ECP ENTWICKLUNGSGESELLSCHAFT MBH
2024/0084,794 ELECTRIC COMPRESSOR WITH DOMED INVERTER COVERSep 13, 22Mar 14, 24MAHLE International GmbH
2024/0084,795 ELECTRIC COMPRESSOR WITH SCROLL BEARING INJECTION ORIFICESep 13, 22Mar 14, 24MAHLE International GmbH
2024/0084,797 ELECTRIC COMPRESSOR WITH A MULTICAVITY PULSATION MUFFLER SYSTEMSep 13, 22Mar 14, 24MAHLE International GmbH
2024/0068,470 ELECTRIC COMPRESSORJul 25, 23Feb 29, 24Kabushiki Kaisha Toyota Jidoshokki
2023/0349,376 SCROLL PUMP WITH AXIAL LOAD CONTROL SYSTEMApr 28, 23Nov 02, 23Not available
2023/0213,033 SCROLL COMPRESSORFeb 27, 23Jul 06, 23GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGIES CORPORATION LIMITED
2022/0235,762 Compressor Having Directed SuctionJan 27, 21Jul 28, 22Emerson Climate Technologies, Inc.
2021/0277,892 COMPRESSORFeb 25, 21Sep 09, 21Not available
2021/0246,895 COMPRESSORJan 20, 21Aug 12, 21Not available
2021/0239,113 Compressor BearingJan 31, 20Aug 05, 21Emerson Climate Technologies, Inc.
2021/0199,111 SCROLL COMPRESSORDec 23, 20Jul 01, 21Not available
2021/0115,917 SCROLL COMPRESSORFeb 13, 17Apr 22, 21Not available
2018/0328,358 Scroll-Type Fluid Machine and Maintenance Method for SameAug 26, 16Nov 15, 18HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.

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Patents Issued To Date - By Filing Year

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