ClassID:

143562

F04C18/0284 - 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; Details concerning the involute wraps Details of the wrap tips

Recent Application in this class:
#1
20260055765
2026-02-26

SCROLL COMPRESSOR

#2
20250354554
2025-11-20

SCROLL COMPRESSOR

#3
20240401592
2024-12-05

COMPRESSOR AND A DYNAMIC VORTEX DISK THEREOF

#4
20240209855
2024-06-27

Vacuum pump with movable trapezoidal seal

#5
20240060492
2024-02-22

Scroll machine and refrigeration system

#6
20220372977
2022-11-24

Centrifugal compressor

#7
20220372975
2022-11-24

Scroll compressor including a first and a second axial stabilizing arrangement

#8
20220299028
2022-09-22

Scroll compressor including a fixed-side first region receiving a force which presses a movable scroll against a moveable scroll against a fixed scroll

#9
20220220960
2022-07-14

Scroll compressor including end-plate side stepped portions of each of the scrolls corresponding to wall-portion side stepped portions of each of the scrolls

#10
20220034322
2022-02-03

Sealing structure and scroll air compressor having same

#11
20210156382
2021-05-27

Tip seal and scroll fluid machine using same

#12
20210131433
2021-05-06

FLUID MACHINE

#13
20200370556
2020-11-26

Scroll fluid machine including first and second scroll members

#14
20200309131
2020-10-01

Scroll fluid machine and tip seal

#15
20200095993
2020-03-26

Scroll fluid machine with decreasing inter-facing surface and arc shape end plate central portion

#16
20200025201
2020-01-23

Low cost scroll compressor or vacuum pump

#17
20190353162
2019-11-21

Tip seal for scroll compressor

#18
20190323502
2019-10-24

Scroll compression device having a sealing device, and scroll compressor including such a scroll compression device

#19
20190301462
2019-10-03

Scroll compressor

#20
20190277284
2019-09-12

Dual-vane scroll compressor with capacity modulation

#21
20190211824
2019-07-11

Multi-stage scroll vacuum pumps and related scroll devices

#22
20190120229
2019-04-25

Scroll fluid machine and method for producing same

#23
20190113033
2019-04-18

Scroll fluid machine, and method for processing scroll member

#24
20190101118
2019-04-04

SCROLL PUMP TIP SEALING

#25
20190101116
2019-04-04

Scroll compressor having gap between tip spiral scroll wrap to end plate of fixed and orbiting scrolls that differs in axial length from gap between support of oldham ring and end plate of orbiting scroll

#26
20190072094
2019-03-07

Displacement machine according to the spiral principle, method to regulate pressure in the counter-pressure chamber by using a pressure difference and characteristic curve

#27
20190063433
2019-02-28

SCROLL PUMP TIP SEALING

#28
20180335031
2018-11-22

Scroll compressor for a vehicle air-conditioning system having spiral wall including conical cut

#29
20180306187
2018-10-25

Scroll compressor with wrap contour modification

#30
20180142687
2018-05-24

Scroll compressor with different materials and thickness of scroll laps

#31
20180128270
2018-05-10

Scroll compressor and refrigeration cycle apparatus

#32
20180038367
2018-02-08

Scroll compressor including end-plate side stepped portions of each of the scrolls corresponding to wall-portion side stepped portions of each of the scrolls

#33
20180023569
2018-01-25

Scallop step for a scroll compressor

#34
20180017055
2018-01-18

Scroll compressor with different chamfered corners

#35
20170306956
2017-10-26

Scroll compressor with coated sliding surface

#36
20170268514
2017-09-21

Scroll device having a pressure plate

#37
20170074265
2017-03-16

Scroll fluid machine having tip seal member separated into different portions

#38
20160341200
2016-11-24

Scroll compressor

#39
20160327042
2016-11-10

Multi stage scroll vacuum pumps and related scroll devices

#40
20160319818
2016-11-03

Scroll compressor

#41
20160238007
2016-08-18

Scroll member and scroll-type fluid machine

#42
20160201674
2016-07-14

Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump

#43
20160131136
2016-05-12

Tip seal

#44
20160131134
2016-05-12

Scroll compressor having a scroll wrap with tiered inner end

#45
20160108915
2016-04-21

Scroll compressor

#46
20150369246
2015-12-24

Scroll compressor

#47
20150233375
2015-08-20

Scroll compressor

#48
20150219101
2015-08-06

Scroll compressor including seal with axial length that is greater than radial width

#49
20150152863
2015-06-04

Scroll type fluid machine

#50
20150093274
2015-04-02

Powder metal scrolls with modified tip designs

#51
20140363325
2014-12-11

Scroll compressor with an arcuate and a logarithmic spiral sections

#52
20140348681
2014-11-27

Scroll-type compressor and COvehicle air conditioning system having a scroll-type compressor

#53
20140308146
2014-10-16

Scroll compressor with inclined surfaces on the stepped portions

#54
20140294640
2014-10-02

Scroll pump having separable orbiting plate scroll and method of replacing tip seal

#55
20140248172
2014-09-04

Scroll compressor including a sealing member

#56
20130315769
2013-11-28

Scroll fluid machine

#57
20130251576
2013-09-26

Scroll compressor and processing method of scroll including a projection on a tip seal and a hole in a tip seal groove

#58
20130004354
2013-01-03

Scroll compressor

#59
20120141311
2012-06-07

Scroll pump

#60
20120134863
2012-05-31

Scroll pump having pockets formed in an axial end face of a scroll wall

#61
20120134862
2012-05-31

Scroll pump having tip seal containing engaging portions intermediate nonengaging portions that interface with a scroll base

#62
20120100026
2012-04-26

Scroll compressor including flow path with differing axial extents

#63
20110286871
2011-11-24

Scroll compressor having tip seals of different lengths having different thickness or widths

#64
20110243777
2011-10-06

Scroll compressor with passage in the spiral wrap

#65
20110070116
2011-03-24

Scroll fluid machine having seal member with plural linear cut arrangement

#66
20100172780
2010-07-08

Scroll compressor for preventing performance deterioration and variation due to gas leakage

#67
20080247895
2008-10-09

Injection molded scroll form

#68
20080193313
2008-08-14

Scroll compressor with an orbiting scroll and two fixed scrolls and ring and tip seals

#69
20070104604
2007-05-10

Scroll fluid machine having an adjustment member with a deformable element

#70
20050287028
2005-12-29

Multi-stage scroll fluid machine having a set a seal elements between compression sections