ClassID:

136732

F01C21/10 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in groups  -  Outer members for co-operation with rotary pistons; Casings

Sub-classes:
Recent Application in this class:
#1
20250376982
2025-12-11

ROLLING PISTON ROTARY COMPRESSOR

#2
20250243759
2025-07-31

ROTATIONAL ENGINE WITH INNER AND OUTER RINGS

#3
20250146416
2025-05-08

ROTARY MACHINE

#4
20250075622
2025-03-06

FRETTING RESISTANT ROTARY ENGINE HOUSINGS

#5
20240360829
2024-10-31

Internal gear machine with helical toothing

#6
20240271619
2024-08-15

HYDRAULIC PUMP UNIT HAVING KNURLED CONNECTION OF A PILLOW BLOCK TO A HOUSING

#7
20240191626
2024-06-13

Rotary machine

#8
20240141789
2024-05-02

Rotational engine with inner and outer rings

#9
20230258185
2023-08-17

Scroll electric compressor

#10
20230250819
2023-08-10

Variable displacement gerotor pump

#11
20230228195
2023-07-20

Wankel pump cycle residual boost system

#12
20230203950
2023-06-29

Rotary machine

#13
20230076739
2023-03-09

Multiple stage vacuum pump

#14
20230033204
2023-02-02

DRY VACUUM PUMP

#15
20220307499
2022-09-29

Electric pump

#16
20220307496
2022-09-29

Electric pump including a motor unit and an axially extending attachment surface

#17
20220290566
2022-09-15

VANE MOTOR

#18
20220290565
2022-09-15

Rotary engine with recirculating arc roller power transfer

#19
20220127962
2022-04-28

Multistage pump body and multistage gas pump

#20
20220065249
2022-03-03

Pump-motor unit comprising an integrative housing cover

#21
20220018255
2022-01-20

Rotational engine with inner and outer rings

#22
20210317831
2021-10-14

Two-piece suction fitting

#23
20210254466
2021-08-19

Scroll expander with exhaust path thru bearings and a partition plate

#24
20210062810
2021-03-04

Vane pump

#25
20210054872
2021-02-25

Rotary engine

#26
20200300092
2020-09-24

Variable lubricant vane pump

#27
20200284148
2020-09-10

POSITIVE DISPLACEMENT HEAT MACHINES WITH SCAVENGING

#28
20200256335
2020-08-13

Variable displacement lubricant vane pump

#29
20200232465
2020-07-23

Adaptive connector position for high/low voltage inverter

#30
20200173444
2020-06-04

Temperature control of a pumped gas flow

#31
20200141405
2020-05-07

Variable displacement gear pump

#32
20200114478
2020-04-16

Repair of cast iron bore inner diameter surfaces

#33
20200049010
2020-02-13

SCROLL FLUID MACHINE

#34
20200040891
2020-02-06

Compressor unit for refrigerating machine for domestic or commercial use and refrigerating machine for domestic or commercial use which comprises it

#35
20200040813
2020-02-06

Method of manufacturing a rotary engine casing

#36
20190368354
2019-12-05

MULTI-STAGE VACUUM BOOSTER PUMP COUPLING

#37
20190331116
2019-10-31

Method for cooling a compressor or vacuum pump and a compressor or vacuum pump applying such a method

#38
20190293071
2019-09-26

Scroll fluid machine that maintains control accuracy of back pressure

#39
20190293069
2019-09-26

Automotive variable mechanical lubricant pump

#40
20190292980
2019-09-26

Groove trap apparatus for combustion and compression machinery

#41
20190277291
2019-09-12

Co-rotating scroll compressor

#42
20190271314
2019-09-05

Rotary compressor and assembly method thereof

#43
20190264685
2019-08-29

Rotary device having a circular guide ring

#44
20190249662
2019-08-15

Horizontally split screw-spindle pump

#45
20190242383
2019-08-08

Rotary vacuum pump with a rotor end groove

#46
20190242340
2019-08-08

Fuel pump having a motor housing and pump housing against one another

#47
20190219069
2019-07-18

Motor oil pump assembly, steering system, and vehicle

#48
20190219050
2019-07-18

Pump sleeve for a charge and scavenge pump of an integrated drive generator

#49
20190211820
2019-07-11

Scroll-type machine

#50
20190203718
2019-07-04

Screw compressor for a utility vehicle

#51
20190162183
2019-05-30

Eccentric screw pump

#52
20190145417
2019-05-16

Pump device

#53
20190101115
2019-04-04

Scroll-type fluid machine and method for assembling same

#54
20180347457
2018-12-06

Method of manufacturing a rotary engine casing

#55
20180320519
2018-11-08

Scroll compressor having a baseplate including first and second cylindrical rim portions

#56
20180306183
2018-10-25

Pump

#57
20180291894
2018-10-11

ENGINE OIL PUMP

#58
20180283377
2018-10-04

Electric gear pump with specific proportions for the fluid passages

#59
20180274713
2018-09-27

Housing for a compressor or expander installation, vacuum pump, generator or the like

#60
20180245591
2018-08-30

Fluid machinery, heat exchange equipment, and operating method for fluid machinery

#61
20180238311
2018-08-23

Electric vacuum pump, in particular for arranging in a vehicle

#62
20180223823
2018-08-09

Compressor discharge valve assembly

#63
20180216461
2018-08-02

Scroll-type fluid machine and maintenance method for same

#64
20180209272
2018-07-26

Pneumatic motor with dual air intake

#65
20180180045
2018-06-28

Pump and system for supplying a consumer

#66
20180145560
2018-05-24

Energy-saving Device with Functions of Air Feeding and Power Generation

#67
20180142554
2018-05-24

Oil-lubricated slide vane rotary vacuum pump with oil separating and reconditioning device

#68
20180135631
2018-05-17

Screw compressor and a compressor body thereof

#69
20180128106
2018-05-10

Multiple axis rotary engine

#70
20180128105
2018-05-10

Rotary piston and cylinder devices

#71
20180066659
2018-03-08

Electrically-driven compressor

#72
20180058448
2018-03-01

Rotary device having a circular guide ring

#73
20180023568
2018-01-25

Electric compressor

#74
20170350251
2017-12-07

OPTIMAL EXPANDER OUTLET PORTING

#75
20170350250
2017-12-07

FREE ROTARY FLUID MACHINE

#76
20170334212
2017-11-23

Gear pump and printing apparatus provided with same

#77
20170284398
2017-10-05

Rotary pump having a casing being formed with a communicating hole communicating a space that is between the side plate and the wall surface of the driving machine

#78
20170234130
2017-08-17

Scroll fluid machine with improved reliability and performance of components thereof

#79
20170229943
2017-08-10

Electric compressor

#80
20170226857
2017-08-10

ENERGY RECOVERY DEVICE WITH HEAT DISSIPATION MECHANISMS

#81
20170218760
2017-08-03

Engine assembly with turbine support casing

#82
20170211390
2017-07-27

SCROLL TYPE FLUID MACHINE

#83
20170175744
2017-06-22

Compressor with ribbed cooling jacket

#84
20170175620
2017-06-22

Rotary engine casing with seal engaging plate having mating surface defining a fluid cavity

#85
20170167262
2017-06-15

Scroll expander

#86
20170138359
2017-05-18

Piston machine with cooling function

#87
20170130583
2017-05-11

Positive displacement rotary motion device including a pulse detonation device

#88
20170114785
2017-04-27

Screw spindle pump

#89
20170114641
2017-04-27

Internal bearing plate for gearmotor assembly

#90
20170108255
2017-04-20

Oil-gas balancing apparatus and compressor system with the same

#91
20170096897
2017-04-06

Method for expanding a gas flow and device thereby applied

#92
20170074266
2017-03-16

Screw compressor

#93
20170074099
2017-03-16

Multi-vane impeller device

#94
20170067462
2017-03-09

Vane pump and vane pump manufacturing method

#95
20170067461
2017-03-09

Triangular pump cover

#96
20170037851
2017-02-09

Motor vehicle vacuum pump having an adhesive

#97
20170009582
2017-01-12

Rotary engine seals

#98
20170002813
2017-01-05

Method for forming hole-processed cast, cast casing, and screw compressor casing

#99
20170002812
2017-01-05

Two-piece suction fitting

#100
20160377095
2016-12-29

Discharge casing insert for pump performance characteristics control

#101
20160369804
2016-12-22

Suction/compression assembly for a waste material aspiration system

#102
20160369800
2016-12-22

Suction/compression assembly for a waste material intake equipment or system

#103
20160369795
2016-12-22

Variable delivery external gear machine

#104
20160363113
2016-12-15

Friction-free Rotary Piston Scissor Action Motor / Hot Air Energy Generator

#105
20160348677
2016-12-01

Scroll compressor

#106
20160333875
2016-11-17

Fuel pump

#107
20160327039
2016-11-10

Attachment structure for compressor

#108
20160305430
2016-10-20

Scroll compressor having an insulated high-strength partition assembly

#109
20160303864
2016-10-20

Gear pump and printing apparatus provided with same

#110
20160273537
2016-09-22

Compressor and method for producing compressor

#111
20160258291
2016-09-08

Reversing mechanism for a power tool

#112
20160194959
2016-07-07

Rotary engine vane drive method and apparatus

#113
20160185188
2016-06-30

On-vehicle electric compressor having a protecting member protecting a cover for a motor driving circuit against an external force caused when a vehicle has a collision

#114
20160177948
2016-06-23

Rotary pump with a compact setting structure for adjusting the delivery volume

#115
20160153452
2016-06-02

Motor-driven compressor

#116
20160146331
2016-05-26

Delivery device for delivering oil from a reservoir to a transmission of a motor vehicle

#117
20160115958
2016-04-28

Compressor shell assembly

#118
20160115955
2016-04-28

Compressor shell assembly

#119
20160115950
2016-04-28

Compressor, oil-free screw compressor, and method of manufacturing casing used therefor

#120
20160115792
2016-04-28

Hydrostatic positive displacement machine

#121
20160108916
2016-04-21

Rotor with a resin layer that has circular or spiral grooves

#122
20160053677
2016-02-25

Advanced alternating piston rotary engine

#123
20160047380
2016-02-18

Scroll compressor

#124
20160010633
2016-01-14

Housing and method of manufacturing the same

#125
20150372559
2015-12-24

Inverter circuit board and inverter-containing electric compressor using same

#126
20150369239
2015-12-24

Screw pump with at least two parts

#127
20150357886
2015-12-10

Electric motor and electric pump

#128
20150345498
2015-12-03

Vacuum pump for a motor vehicle

#129
20150337835
2015-11-26

Pump

#130
20150337834
2015-11-26

Scroll-type fluid machine

#131
20150322946
2015-11-12

Eccentric screw pump

#132
20150308430
2015-10-29

Vacuum pump

#133
20150300355
2015-10-22

Automotive electric liquid pump

#134
20150300174
2015-10-22

Unitary pump and turbine energy exchanger

#135
20150295467
2015-10-15

Inverter-integrated electric compressor

#136
20150292328
2015-10-15

Rotary internal combustion engine

#137
20150292101
2015-10-15

METHOD FOR COATING A SLIDING SURFACE OF A TROCHOID HOUSING IN A ROTARY ENGINE AND TROCHOID HOUSING COMPRISING A COATED SLIDING SURFACE

#138
20150275670
2015-10-01

VANE MACHINE HAVING STATIONARY AND ROTATING CYLINDERS WITH REDUCED CLEARANCE

#139
20150260189
2015-09-17

Scroll compressor

#140
20150240813
2015-08-27

Electric gear pump with specific proportions for the fluid passages

#141
20150214805
2015-07-30

Electric compressor

#142
20150204325
2015-07-23

Internal gear pump

#143
20150198170
2015-07-16

Sealing joint for a compressor casing

#144
20150165639
2015-06-18

Arrangement for achieving a reciprocal motion in particular for a chain saw

#145
20150147216
2015-05-28

Gas compressor

#146
20150139845
2015-05-21

Housing for a rotary vane pump

#147
20150139831
2015-05-21

Pump module and electric pump including the same

#148
20150093275
2015-04-02

Scroll type fluid machine with notches on a motor housing

#149
20150078928
2015-03-19

Compressor, air conditioner system comprising the compressor and heat pump water heater system

#150
20150064044
2015-03-05

Gas compressor for reducing oscillation in a housing thereof

#151
20150050177
2015-02-19

HYDRAULIC MACHINE, IN PARTICULAR HYDRAULIC PRESSURE EXCHANGER

#152
20150037186
2015-02-05

Structure for stabilizing an orbiting scroll in a scroll compressor

#153
20150023820
2015-01-22

Offset electrical terminal box with angled studs

#154
20150004037
2015-01-01

Ristau conical rotor orbital engine

#155
20140377113
2014-12-25

Pump and/or compressor arrangement including mating, oscillatable vane members for the simultaneous admission and discharge of fluid

#156
20140377097
2014-12-25

Motor-driven compressor

#157
20140308147
2014-10-16

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#158
20140301881
2014-10-09

Rotary compressor with oil retaining portion

#159
20140294623
2014-10-02

Thermal/noise management in a scroll pump

#160
20140286809
2014-09-25

Pump having fitting portions

#161
20140286806
2014-09-25

Multi-stage vacuum pump

#162
20140255235
2014-09-11

Self adjusting gear pump

#163
20140255232
2014-09-11

Planetary rotor machine manifold

#164
20140219831
2014-08-07

Vacuum pump mounting structure

#165
20140205478
2014-07-24

Modular electric compressor including a built-in securing device

#166
20140178219
2014-06-26

Electric pump

#167
20140170010
2014-06-19

Vane rotary compressor having a hinge-coupled vane

#168
20140161645
2014-06-12

Gas pump with a sealing oil groove

#169
20140154122
2014-06-05

Scroll fluid machine with cooling fan and passage

#170
20140154110
2014-06-05

Motor spacer, motor spacer applied to variable-speed compressor and compressor

#171
20140134034
2014-05-15

Fluid machine

#172
20140060056
2014-03-06

Rotational Engine

#173
20140044583
2014-02-13

Process for manufacturing casing, and vacuum pump

#174
20140037470
2014-02-06

Motor-driven compressor including a shield to block electromagnetic noise

#175
20140021650
2014-01-23

Plastic pump housing and manufacture thereof

#176
20140017062
2014-01-16

Vacuum pump with longitudinal and annular seals

#177
20140010697
2014-01-09

Polyetherimide pump

#178
20130294957
2013-11-07

Pump enveloped with thermally conductive material

#179
20130280062
2013-10-24

Coupling structure for vacuum exhaust device and vacuum exhaust system

#180
20130272910
2013-10-17

Scroll compressor

#181
20130272907
2013-10-17

Electric compressor

#182
20130259717
2013-10-03

Vacuum pump for applications in vacuum packaging machines

#183
20130251581
2013-09-26

Two-spindle pump of single-flow construction

#184
20130251562
2013-09-26

Suction duct with stabilizing ribs

#185
20130251551
2013-09-26

COMPRESSOR SHELL WITH MULTIPLE DIAMETERS

#186
20130251549
2013-09-26

Offset electrical terminal box with angled studs

#187
20130251544
2013-09-26

Suction duct with adjustable diametric fit

#188
20130224054
2013-08-29

Scroll compressor

#189
20130224050
2013-08-29

Motor-driven compressor

#190
20130219952
2013-08-29

Hermetically sealed rotary compressor and refrigeration cycle device

#191
20130202473
2013-08-08

Two-spindle screw pump of double-flow construction

#192
20130202464
2013-08-08

Electric oil pump system

#193
20130142682
2013-06-06

Compressor motor and electric compressor including the same

#194
20130136586
2013-05-30

Electric pump

#195
20130133765
2013-05-30

Fuel pump assembly

#196
20130115122
2013-05-09

Rotary compressor with vibration reduction and oil control

#197
20130064601
2013-03-14

FRICTION BONDING STRUCTURE AND PUMP DEVICE

#198
20130058821
2013-03-07

Scroll-Type Fluid Machine

#199
20130048102
2013-02-28

Gasket and motor-driven compressor

#200
20130039795
2013-02-14

Shaft rotating double-stator multi-speed motor with curves of constant width

#201
20130028730
2013-01-31

COMPRESSOR

#202
20130022458
2013-01-24

Screw pump having an integrated pressure limiting valve

#203
20130017100
2013-01-17

MOTOR-DRIVEN COMPRESSOR

#204
20130011286
2013-01-10

Positive displacement rotary machine

#205
20120308422
2012-12-06

Scroll compressor with oldham ring having scroll-side keys and bearing-side keys

#206
20120308414
2012-12-06

INVERTER-INTEGRATED ELECTRIC COMPRESSOR

#207
20120282124
2012-11-08

Compressor and enclosure assembly for electrical components

#208
20120275939
2012-11-01

Electrically driven compressor system for vehicles

#209
20120275907
2012-11-01

Fluid energy machine

#210
20120263617
2012-10-18

Positive displacement rotary system

#211
20120263615
2012-10-18

Scroll Fluidic Device

#212
20120263614
2012-10-18

Housingless positive displacement pump assembly

#213
20120251358
2012-10-04

Motor-driven compressor

#214
20120251356
2012-10-04

Shock protector for a compressor's drive circuit

#215
20120251348
2012-10-04

MOTOR-DRIVEN COMPRESSOR

#216
20120244021
2012-09-27

PUMP MOUNTING STRUCTURE

#217
20120237381
2012-09-20

Vehicular scroll compressor having housing arrangements for improved vibration isolation

#218
20120237376
2012-09-20

Inverter cover for motor-driven compressor

#219
20120213657
2012-08-23

FLUID PUMP MECHANICAL SEAL

#220
20120201709
2012-08-09

Compressor having intercooler core

#221
20120183420
2012-07-19

Inverter-integrated electric compressor

#222
20120171067
2012-07-05

Hermetic compressor and manufacturing method thereof

#223
20120171066
2012-07-05

Compressor

#224
20120171065
2012-07-05

Compressor

#225
20120171064
2012-07-05

Compressor in which a shaft center of a suction pipe is disposed to not correspond to a shaft center of a refrigerant suction passage of a stationary shaft and an upper end of the stationary shaft protrudes higher than a bottom of an accumulator chamber

#226
20120156072
2012-06-21

Compressor

#227
20120139260
2012-06-07

Power supply systems

#228
20120138011
2012-06-07

Lubrication circuit layout

#229
20120137875
2012-06-07

CYLINDER ASSEMBLY FOR PNEUMATIC MOTOR AND PNEUMATIC MOTOR COMPRISING THE SAME

#230
20120121442
2012-05-17

Multistage dry vacuum pump

#231
20120034110
2012-02-09

VACUUM PUMP HOUSING AND SET OF COOLING ELEMENTS FOR A VACCUM PUMP HOUSING

#232
20120020824
2012-01-26

ROOTS SUPERCHARGER WITH A SHUNT PULSATION TRAP

#233
20120003107
2012-01-05

Pumps and pump heads comprising volume-compensation feature

#234
20110311387
2011-12-22

High efficiency fixed displacement vane pump including a compression spring

#235
20110286840
2011-11-24

Liquid ring pump with liner

#236
20110236242
2011-09-29

Compressor having a shutdown valve

#237
20110223046
2011-09-15

Positive displacement rotary system

#238
20110211977
2011-09-01

Oil Separator Built-In Compressor

#239
20110209448
2011-09-01

OIL SEPARATOR BUILT-IN SCROLL-TYPE COMPRESSOR

#240
20110200471
2011-08-18

Compressor and manufacturing method thereof

#241
20110200468
2011-08-18

POWER DRIVEN COMPRESSOR SYSTEM FOR VEHICLES

#242
20110200467
2011-08-18

POWER DRIVEN COMPRESSOR THAT PREVENTS OVERHEATING OF CONTROL CIRCUIT

#243
20110200466
2011-08-18

Compact structure for an electric compressor

#244
20110174095
2011-07-21

Rotary piston and cylinder devices

#245
20110146073
2011-06-23

Compressor having shell with alignment features

#246
20110139116
2011-06-16

Rotary, internal combustion engine

#247
20110138885
2011-06-16

Vane pump and evaporation leak check system using the same

#248
20110129377
2011-06-02

Scroll Compressor and Method for Manufacturing the Same

#249
20110129367
2011-06-02

Motorized vacuum pump with sound absorbing unit

#250
20110091337
2011-04-21

Integrated-inverter electric compressor

#251
20110030652
2011-02-10

Inertial Rotation Internal Combustion Engine

#252
20100319652
2010-12-23

ROTOR HOUSING ASSEMBLY FOR ROTARY ENGINE AND RELATED DEVICES AND METHODS

#253
20100307343
2010-12-09

Compressor incorporated with oil separator

#254
20100290933
2010-11-18

Electric pump

#255
20100266435
2010-10-21

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#256
20100247366
2010-09-30

Screw compressor

#257
20100202913
2010-08-12

GEAR PUMP

#258
20100172756
2010-07-08

Rotary compressor

#259
20100143165
2010-06-10

ELECTRIC COMPRESSOR WITH INTEGRAL INVERTER

#260
20100099002
2010-04-22

FLUID PUMP WITH AN INTEGRATED MOUNTING INTERFACE

#261
20100084933
2010-04-08

Electric compressor

#262
20100074786
2010-03-25

Indexed positive displacement rotary motion device

#263
20100074773
2010-03-25

ELECTRIC COMPRESSOR

#264
20100071657
2010-03-25

Rotary heat engine

#265
20100047104
2010-02-25

Fluid machine with divided housing

#266
20100028184
2010-02-04

TEMPERATURE PROTECTION SWITCH BIASED AGAINST SCROLL COMPRESSOR SHELL

#267
20100021320
2010-01-28

Electric compressor

#268
20090285711
2009-11-19

Root pump

#269
20090169406
2009-07-02

Scroll Compressor

#270
20090159617
2009-06-25

Hot melt adhesive metering pump assembly with integral reservoir tank

#271
20090139227
2009-06-04

Rotary heat engine

#272
20090068045
2009-03-12

Compressor having a shutdown valve

#273
20090068044
2009-03-12

Compressor with retaining mechanism

#274
20090068043
2009-03-12

Compressor having shell with alignment features

#275
20090010786
2009-01-08

Electrically-Driven Compressor

#276
20080260547
2008-10-23

Compressor sound suppression

#277
20080240945
2008-10-02

Motor/Pump Unit

#278
20080236192
2008-10-02

Rotary compressor and heat pump system

#279
20080232993
2008-09-25

Fastener member and gas compressor using the same

#280
20080226483
2008-09-18

Compressor with oil separation and storage

#281
20080181791
2008-07-31

Electric compressor

#282
20080138228
2008-06-12

Scroll type fluid machine having a circulation path and inlet path for guiding refrigerant from a discharge chamber to a drive casing and to a rear-side of movable scroll

#283
20080131303
2008-06-05

Compressor terminal plate

#284
20070292293
2007-12-20

Fluid machine and scroll compressor having a crankshaft with a large diameter shaft section

#285
20070148011
2007-06-28

Vane-cell pump provided with a deep-drawn metal-sheet pot

#286
20070116589
2007-05-24

Method and apparatus for compressor re-manufacture

#287
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