ClassID:

143557

F04C18/0246 - CPC Classification

Classification description:

Rotary-piston pumps specially adapted for elastic fluids 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 both members having co-operating elements in spiral form Details concerning the involute wraps or their base, e.g. geometry

Sub-classes:
Recent Application in this class:
#1
20260028991
2026-01-29

SCROLL FOR SCROLL COMPRESSOR AND SCROLL COMPRESSOR

#2
20250270995
2025-08-28

ELECTRIC COMPRESSOR WITH PASSIVE PRESSURE SYSTEM BETWEEN HIGH AND LOW PRESSURE REGIONS

#3
20250172142
2025-05-29

SCROLL COMPRESSOR AND REFRIGERATING APPARATUS

#4
20240318654
2024-09-26

SCROLL COMPRESSOR

#5
20240287985
2024-08-29

SCROLL COMPRESSOR WITH INTERMEDIATE INJECTION

#6
20240133379
2024-04-25

SCROLL COMPRESSOR

#7
20240102469
2024-03-28

Retainer block bypass hole valve assembly arranged in non-orbiting scroll of a compressor

#8
20240060492
2024-02-22

Scroll machine and refrigeration system

#9
20230417245
2023-12-28

Scroll compressor

#10
20230392596
2023-12-07

Scroll compressor with improved sealing performance of back pressure chamber

#11
20230374631
2023-11-23

ALUMINUM ALLOY FOR SLIDING COMPONENTS, AND SLIDING COMPONENT

#12
20230304496
2023-09-28

Scroll compressor with Oldham ring and keys in orbiting scroll

#13
20230114913
2023-04-13

Compressor having lubrication system

#14
20230107523
2023-04-06

Scroll compressor with a thin section in the orbiting volute wall

#15
20230055808
2023-02-23

SCROLL COMPRESSOR WITH A COMPRESSION SECTION MADE OF SOLID SOLUTION STRENGTHENED FERRITIC DUCTILE IRON

#16
20230037942
2023-02-09

Aerostatic thrust bearing and method of aerostatically supporting a thrust load in a scroll compressor

#17
20230003221
2023-01-05

Scroll compressor with bypass portions

#18
20220403844
2022-12-22

Compressor having a bushing assembly

#19
20220120277
2022-04-21

Compressor having lubrication system

#20
20220120272
2022-04-21

Scroll compressor

#21
20220074411
2022-03-10

Scroll compressor

#22
20220065245
2022-03-03

Fixed scroll disk and scroll compressor having the same

#23
20220010797
2022-01-13

Scroll compressor

#24
20210148361
2021-05-20

Scroll compressor including fixed and orbiting scroll having stepped portions and a surface hardened treatment

#25
20210148359
2021-05-20

Scroll compressor having hub plate

#26
20210010473
2021-01-14

Compressor with enhanced stiffness at contact point between fixed and orbiting scrolls

#27
20200400144
2020-12-24

Scroll compressor containing scroll self-rotation prevention arrangement

#28
20200309131
2020-10-01

Scroll fluid machine and tip seal

#29
20200291941
2020-09-17

Hub of movable scroll device for scroll compressor including centroid-adjusting recess and method for manufacturing same

#30
20200240410
2020-07-30

Scroll compressor with bypass portions

#31
20200217321
2020-07-09

Thermal and sound optimized lattice-cored additive manufactured compressor components

#32
20200208632
2020-07-02

Compressor having Oldham keys

#33
20200141399
2020-05-07

Lattice-cored additive manufactured compressor components with fluid delivery features

#34
20200080557
2020-03-12

MOTOR-OPERATED COMPRESSOR

#35
20200072219
2020-03-05

Spiral compressor with oil recirculation unit

#36
20200056610
2020-02-20

Scroll compressor with different sized gaps formed between inner and outer peripheral surfaces of scroll laps

#37
20200011328
2020-01-09

Scroll compressor

#38
20190376514
2019-12-12

Compressor

#39
20190301460
2019-10-03

Scroll compressor

#40
20190293071
2019-09-26

Scroll fluid machine that maintains control accuracy of back pressure

#41
20190271312
2019-09-05

Scroll compressor with integral driving shaft and eccentric shaft

#42
20190264688
2019-08-29

Scroll compressor having offset portion provided on discharge port to reduce backflow

#43
20190178248
2019-06-13

Scroll compressor

#44
20190162185
2019-05-30

Scroll compressor having cutout provided on movable wrap to reduce backflow

#45
20190113034
2019-04-18

Electric refrigerant drive

#46
20190078567
2019-03-14

Scroll compressor with bypass portions

#47
20190040861
2019-02-07

Scroll compressor having hub plate

#48
20190032659
2019-01-31

Scroll compressor and air conditioning apparatus including the same

#49
20180363658
2018-12-20

Aerostatic thrust bearing and method of aerostatically supporting a thrust load in a scroll compressor

#50
20180363657
2018-12-20

Aerostatic thrust bearing and method of aerostatically supporting a thrust load in a scroll compressor

#51
20180363656
2018-12-20

Aerostatic thrust bearing method and method of aerostatically supporting a thrust load in a scroll compressor

#52
20180347568
2018-12-06

Compressor having oil recovery means

#53
20180306187
2018-10-25

Scroll compressor with wrap contour modification

#54
20180142687
2018-05-24

Scroll compressor with different materials and thickness of scroll laps

#55
20180080446
2018-03-22

Co-rotating scroll compressor having back pressure structure

#56
20180045199
2018-02-15

Scroll compressor with step

#57
20170342981
2017-11-30

Scroll compressor having compression chamber communicating with discharge port via a gap between recessed part formed on front face of movable-side plate and tip of fixed-side lap

#58
20170306952
2017-10-26

Scroll compressor with bypass portions

#59
20170184108
2017-06-29

Thermal and sound optimized lattice-cored additive manufactured compressor components

#60
20170043446
2017-02-16

Scroll machining method and scroll machining apparatus

#61
20160160859
2016-06-09

Sealing member, scroll compressor including a sealing member and method for manufacturing a sealing member for a scroll compressor

#62
20160123326
2016-05-05

Scroll compressor including oldham coupling having keys that are slidingly received in slots of a non-orbiting scroll and/or an orbiting scroll

#63
20160115954
2016-04-28

Compressor

#64
20160053759
2016-02-25

Scroll compressor with recesses and protrusions

#65
20160040667
2016-02-11

Scroll compressor having an area of bypass holes formed at a compression chamber with a larger volume reduction gradient larger than an area of bypass holes at the other compression chamber

#66
20150369246
2015-12-24

Scroll compressor

#67
20150369244
2015-12-24

Scroll compressor

#68
20150316055
2015-11-05

Scroll compressor having a back pressure chamber assembly disposed on a fixed scroll plate and an elastic member disposed between a floating plate and a discharge cover

#69
20150233375
2015-08-20

Scroll compressor

#70
20150192125
2015-07-09

Switchable single-start or multi-start scroll pump

#71
20150037189
2015-02-05

Scroll compressor reducing over-compression loss

#72
20150036955
2015-02-05

Sliding member and manufacturing method therefor

#73
20140308146
2014-10-16

Scroll compressor with inclined surfaces on the stepped portions

#74
20140234148
2014-08-21

Scroll compressor with intermittent communication between back pressure chamber and compression chambers

#75
20140154123
2014-06-05

Scroll pump with overpressure exhaust

#76
20130294956
2013-11-07

Scroll fluid machine with axial sealing unit

#77
20130219950
2013-08-29

Scroll compressor and air conditioner

#78
20130089449
2013-04-11

Scroll compressor with bypass hole

#79
20130089448
2013-04-11

Scroll refrigeration compressor with a delivery valve and a bypass valve

#80
20130071276
2013-03-21

Valve arrangement for a scroll refrigeration compressor

#81
20130052068
2013-02-28

Scroll compressor with cover covering driving shaft of driving motor

#82
20130028730
2013-01-31

COMPRESSOR

#83
20120251369
2012-10-04

Scroll compressor and method for machining discharge port of the same

#84
20120156068
2012-06-21

Hermetically sealed scroll compressor

#85
20110103990
2011-05-05

Scroll compressor

#86
20110033327
2011-02-10

Scroll compressor with noise reducing discharge opening

#87
20100284844
2010-11-11

METHOD FOR MANUFACTURING COMPRESSOR SLIDER, AND COMPRESSOR

#88
20100215533
2010-08-26

Scroll type compressor including a suction pipe having iron portion and copper portion

#89
20100202911
2010-08-12

SCROLL-TYPE POSITIVE DISPLACEMENT APPARATUS WITH PLASTIC SCROLLS

#90
20100143172
2010-06-10

Multistage compressor for a CO2 cycle that includes a rotary compressing mechanism and a scroll compressing mechanism

#91
20100129240
2010-05-27

Hermetically sealed scroll compressor

#92
20100111739
2010-05-06

Scroll member, method of manufacturing same, compression mechanism and scroll compressor

#93
20100111738
2010-05-06

Scroll member, method of manufacturing same, compression mechanism and scroll compressor

#94
20100086427
2010-04-08

Scroll compressor having spiral bodies with seal projections

#95
20100061871
2010-03-11

Compressor slider, slider preform, scroll part, and compressor

#96
20090208348
2009-08-20

Capacity varying device for scroll compressor

#97
20070104603
2007-05-10

Scroll and manufacture method therefor

#98
20060233655
2006-10-19

Scroll machine with axially compliant mounting

#99
20060177334
2006-08-10

Axial force reducing structure of orbiting vane compressor

#100
20060115371
2006-06-01

Scroll compressor

#101
20050271534
2005-12-08

Scroll compressor and air-conditioning system for vehicle using the scroll compressor

#102
20050265879
2005-12-01

Scroll fluid machine having permanent magnets mounted on respective the stationary and orbiting end plates for preventing axial motion of the orbiting scroll

#103
20050262689
2005-12-01

Method of manufacturing an orbiting scroll in a scroll fluid machine

#104
20050226755
2005-10-13

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

#105
20050201883
2005-09-15

Scroll machine with stepped sleeve guide

#106
20050100469
2005-05-12

Scroll compressor

#107
20050053508
2005-03-10

Scroll compressor having a throttle pin moving in the longitudinal hole of the oil supply passage