Patents-Review.com
ClassID:

143418 ⎘

F04C2/10 - CPC Classification

Classification description:

Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

Sub-classes:
Recent Application in this class:
#1
20260149328
2026-05-28

ENHANCED MOTOR HOUSING FOR MOTOR AND PUMP SYSTEM

 #2
20260139670
2026-05-21

HIG OUTER ROTOR SHADOW POCKETS

 #3
20260104045
2026-04-16

ELECTRIC PUMP

 #4
20260036126
2026-02-05

ELECTRIC PUMP

 #5
20250369442
2025-12-04

SEAL ASSEMBLY FOR PROGRESSIVE CAVITY PUMP

 #6
20250343455
2025-11-06

MODULAR FLUID PUMP FOR USE IN DIVERSE APPLICATIONS

 #7
20250305575
2025-10-02

AN OIL COOLING ARRANGEMENT

 #8
20250297606
2025-09-25

ELECTRICAL MACHINE

 #9
20250297605
2025-09-25

ELECTRIC LIQUID PUMP

 #10
20250281690
2025-09-11

OPERABLE IMPLANT

 #11
20250224307
2025-07-10

ANALYZER

 #12
20250198309
2025-06-19

FLUID PUMP FOR AN AIRCRAFT TURBOMACHINE, LUBRICATION CIRCUIT AND AIRCRAFT TURBOMACHINE

 #13
20250101978
2025-03-27

TANDEM PUMP COMPRISING A MAIN FLOW AND A DRY SUMP FLOW

 #14
20250096629
2025-03-20

PERMANENT MAGNET EMBEDDED MOTOR AND PUMP DEVICE

 #15
20250092872
2025-03-20

OIL PUMP FOR A MOTOR VEHICLE

 #16
20250059972
2025-02-20

ELECTRIC OIL PUMP

 #17
20250059970
2025-02-20

AUTOMOTIVE ELECTRIC LIQUID PUMP

 #18
20250059969
2025-02-20

INTEGRATED ELECTRIC OIL PUMP

 #19
20250059905
2025-02-20

INTEGRATED ELECTRIC OIL PUMP AND OPERATION METHOD THEREOF

 #20
20250035112
2025-01-30

Grease pump unit comprising two serially connected pumps

 #21
20240410366
2024-12-12

PUMP ASSEMBLY FIXTURE

 #22
20240392782
2024-11-28

LIQUID PUMP DEVICE

 #23
20240392778
2024-11-28

ELECTRIC DEVICE

 #24
20240352933
2024-10-24

Oil pump not requiring changing positions of suction port and discharge port according to forward rotation and reverse rotation

 #25
20240352929
2024-10-24

Hypotrochoid positive-displacement machine

 #26
20240328493
2024-10-03

Vehicle driving apparatus

 #27
20240328416
2024-10-03

ELECTRONIC POSITIVE DISPLACEMENT FLUID PUMP WITH PUMPING RING ALIGNMENT

 #28
20240328414
2024-10-03

ELECTRONIC OIL PUMP

 #29
20240328413
2024-10-03

Electronic positive displacement fluid pump and method of encapsulating the same

 #30
20240318650
2024-09-26

Electric motor with dual pump for providing scavenge and delivery functions

 #31
20240318648
2024-09-26

FLUID DRIVE DEVICE

 #32
20240280103
2024-08-22

PUMP

 #33
20240183355
2024-06-06

Electronic oil pump

 #34
20240171049
2024-05-23

ELECTRONIC OIL PUMP

 #35
20240167402
2024-05-23

ENGINE OILING SYSTEM

 #36
20240011483
2024-01-11

Dual gerotor apparatus, a powertrain assembley and an electrified vehicle

 #37
20240011481
2024-01-11

Flexible crescent for low pressure fuel pump

 #38
20230417240
2023-12-28

HYBRID MODULE WITH MULTI-GEROTOR PUMP

 #39
20230392683
2023-12-07

Gerotor pump as for a transmission

 #40
20230374983
2023-11-23

Electric pump

 #41
20230349377
2023-11-02

PUMP DEVICE

 #42
20230336057
2023-10-19

ELECTRIC OIL PUMP

 #43
20230332599
2023-10-19

ELECTRIC OIL PUMP

 #44
20230323876
2023-10-12

Pump Arrangement

 #45
20230323875
2023-10-12

Pump shaft support structure

 #46
20230323874
2023-10-12

Fluid pump with thrust bearing driver

 #47
20230313793
2023-10-05

Hydraulic machine with lubricated rotating spool

 #48
20230304494
2023-09-28

Pump Assembly

 #49
20230299634
2023-09-21

MODULAR FLUID PUMP FOR USE IN DIVERSE APPLICATIONS

 #50
20230250819
2023-08-10

Variable displacement gerotor pump

 #51
20230228284
2023-07-20

CYLINDER ON DEMAND HYDRAULIC DEVICE

 #52
20230191905
2023-06-22

Electric drive apparatus for vehicle

 #53
20230113348
2023-04-13

METHOD AND SYSTEM WITH HIGH SPEED MOTOR AND SPEED LIMITED PUMP

 #54
20230075042
2023-03-09

LIQUID PUMP DEVICE

 #55
20230012331
2023-01-12

Pump

 #56
20220412351
2022-12-29

Pump

 #57
20220412350
2022-12-29

Oil pump device

 #58
20220403842
2022-12-22

Double pump

 #59
20220397113
2022-12-15

Hypotrochoid positive-displacement machine

 #60
20220372973
2022-11-24

TURBOMACHINE PROVIDED WITH AN ELECTROMAGNETIC PUMP WITH AXIAL MAGNETIC FLUX

 #61
20220364558
2022-11-17

MULTI-PUMP APPARATUS AND METHOD

 #62
20220356876
2022-11-10

3-DIMENSIONAL PUMP ROTOR PROFILE

 #63
20220341419
2022-10-27

Pump device with air introduction hole that opens into pump chamber at predetermined opening time immediately before suction stroke

 #64
20220325729
2022-10-13

CYLINDER ON DEMAND HYDRAULIC DEVICE

 #65
20220307496
2022-09-29

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

 #66
20220299021
2022-09-22

Pump assembly having a controller including a circuit board and 3D rotary sensor for detecting rotation of its pump

 #67
20220275803
2022-09-01

Pump

 #68
20220252067
2022-08-11

Motor-pump system

 #69
20220252066
2022-08-11

Split power gerotor pump

 #70
20220209698
2022-06-30

Control device of brushless DC motor

 #71
20220184299
2022-06-16

Operable implant

 #72
20220178374
2022-06-09

Diaphragm pump with heat dissipation mechanism

 #73
20220170457
2022-06-02

ELECTRIC PUMP

 #74
20220128052
2022-04-28

Electric motor with integrated hydraulic pump and motor controller

 #75
20220074406
2022-03-10

Oil pump including resin pump cover

 #76
20220065249
2022-03-03

Pump-motor unit comprising an integrative housing cover

 #77
20220034314
2022-02-03

METAL FELT AND BRUSH STRUCTURES AS SEALING ELEMENTS IN METAL-METAL MUD MOTORS

 #78
20210355942
2021-11-18

Dual drive gerotor pump

 #79
20210332879
2021-10-28

Oil pump receiving bore lip

 #80
20210285443
2021-09-16

Pump insert and pump array comprising such a pump insert

 #81
20210277894
2021-09-09

PUMP DEVICE

 #82
20210254619
2021-08-19

Rotary pump with axial compensation, outlet gasket for a pump and pre-fitted pump unit

 #83
20210254618
2021-08-19

OIL PUMP

 #84
20210239115
2021-08-05

Electric oil pump

 #85
20210222692
2021-07-22

Gerotor pump and method for producing same

 #86
20210180591
2021-06-17

INTERNAL GEAR PUMP

 #87
20210148357
2021-05-20

FLUID PUMP

 #88
20210131428
2021-05-06

INTERNAL GEAR PUMP

 #89
20210095651
2021-04-01

Electric oil pump

 #90
20210048022
2021-02-18

Split power gerotor pump

 #91
20210001711
2021-01-07

In-wheel motor vehicle drive apparatus

 #92
20200369490
2020-11-26

Reel braking system

 #93
20200325898
2020-10-15

Integrated motor and pump including axially placed coils

 #94
20200325896
2020-10-15

Cartridge-style fluid pump assembly with integrated pump cover mount

 #95
20200313505
2020-10-01

ELECTRIC OIL PUMP

 #96
20200309122
2020-10-01

Oil pump

 #97
20200300243
2020-09-24

Enhancing fluid flow in gerotor systems

 #98
20200300241
2020-09-24

ELECTRIC OIL PUMP

 #99
20200277953
2020-09-03

Gear pump

 #100
20200248693
2020-08-06

Internal gear pump

 #101
20200208629
2020-07-02

PUMP ASSEMBLY HAVING TWO PUMPS PROVIDED IN A SINGLE HOUSING

 #102
20200200168
2020-06-25

OIL PUMP

 #103
20200191143
2020-06-18

GEROTOR PUMP OR MOTOR DEVICE WITH ROLLING SUPPORT

 #104
20200141405
2020-05-07

Variable displacement gear pump

 #105
20200131956
2020-04-30

Control system for oil supply mechanism

 #106
20200088180
2020-03-19

Compressor having oil guide path

 #107
20200072217
2020-03-05

Power transmitting component having a shaft with a circumferential channel communicating fluid between a shaft-driven pump and a feed conduit formed in the shaft

 #108
20200018309
2020-01-16

PUMP APPARATUS

 #109
20190353161
2019-11-21

Integrated eccentric motor and pump assembly

 #110
20190301596
2019-10-03

Electric oil pump

 #111
20190301456
2019-10-03

Integrated motor and pump including radially movable outer gerator

 #112
20190277283
2019-09-12

Magnetically engaged pump

 #113
20190271307
2019-09-05

PRESSURE SENSOR DEVICE AND ELECTRICALLY POWERED PUMP

 #114
20190265120
2019-08-29

Pressure sensor device and electrically powered pump

 #115
20190249663
2019-08-15

Lubrication strategy for dry run pump system

 #116
20190234406
2019-08-01

PUMP DEVICE

 #117
20190234405
2019-08-01

PUMP DEVICE

 #118
20190234404
2019-08-01

PUMP DEVICE

 #119
20190226481
2019-07-25

Lubricant supply device and a compressor using the same

 #120
20190219052
2019-07-18

Drive apparatus having oil passage defined in stopper body

 #121
20190214926
2019-07-11

Control device, control method, motor, and electric oil pump

 #122
20190207480
2019-07-04

Drive device

 #123
20190186204
2019-06-20

Stator and rotor profile for improved power section performance and reliability

 #124
20190181723
2019-06-13

Drive device

 #125
20190170140
2019-06-06

Drive device

 #126
20190162181
2019-05-30

Drive apparatus including housing which contains oil

 #127
20190145810
2019-05-16

DEVICE COMPRISING A CANNED MOTOR FOR MEASURING FLOW PROCESSES OF MEASURING FLUIDS

 #128
20190145809
2019-05-16

Coolable device for measuring through-flow processes of fluids

 #129
20190145409
2019-05-16

Bidirectionally flow-impinged device for measuring flow processes of fluids

 #130
20190145408
2019-05-16

Flushable device for measuring flow processes of fluids

 #131
20190120228
2019-04-25

Scavenge pump with improved lubrication

 #132
20190111206
2019-04-18

Operable implant

 #133
20190101207
2019-04-04

Air vent structure of oil pump for automatic transmission, and method for assembling air vent structure

 #134
20190093647
2019-03-28

Lubricating oil supply apparatus and compressor using lubricating oil supply apparatus

 #135
20190055942
2019-02-21

PUMPING ASSEMBLY TO FEED FUEL, PREFERABLY DIESEL FUEL, TO AN INTERNAL COMBUSTION ENGINE

 #136
20190036409
2019-01-31

Motor

 #137
20190024660
2019-01-24

Magnetically engaged pump

 #138
20190017505
2019-01-17

Automotive electrical oil pump

 #139
20190010943
2019-01-10

Automotive electrical oil pump

 #140
20190003477
2019-01-03

Electric pump system and method

 #141
20180306148
2018-10-25

Fuel pump

 #142
20180294692
2018-10-11

IN-WHEEL MOTOR DRIVING DEVICE

 #143
20180283377
2018-10-04

Electric gear pump with specific proportions for the fluid passages

 #144
20180283175
2018-10-04

Rotary engine with oil pump

 #145
20180274540
2018-09-27

Electric oil pump apparatus and base plate for electric oil pump

 #146
20180258929
2018-09-13

Fluid pump with rotating pumping element wear reduction

 #147
20180254685
2018-09-06

MOTOR AND ELECTRIC OIL PUMP

 #148
20180250760
2018-09-06

Machine and method for spark erosion machining of a gerotor pump

 #149
20180245589
2018-08-30

Variable oil pump

 #150
20180245588
2018-08-30

Variable oil pump

 #151
20180245587
2018-08-30

Variable oil pump having adjustment ring containing guide portion with flat surface

 #152
20180238325
2018-08-23

ELECTRIC PUMP AND METHOD FOR PRODUCING SAME

 #153
20180230994
2018-08-16

Rotor assemblies having radial deformation control members

 #154
20180223839
2018-08-09

VARIABLE DISPLACEMENT GEAR PUMP

 #155
20180209416
2018-07-26

Gear pump

 #156
20180209406
2018-07-26

Submersible pump assembly

 #157
20180163721
2018-06-14

Pump device

 #158
20180119695
2018-05-03

Gear pump and method for realising it

 #159
20180118378
2018-05-03

Anti-stall hydraulic pump for a thrust vector control system

 #160
20180112660
2018-04-26

Variable speed multi-stage pump

 #161
20180111679
2018-04-26

Oscillating pump systems for use on aircraft

 #162
20180106251
2018-04-19

Oil pump

 #163
20180100503
2018-04-12

Liquid pump/electric motor combination

 #164
20180100415
2018-04-12

SYSTEMS OF PREVENTING ENGINE BEARING DAMAGE

 #165
20180087504
2018-03-29

Fuel pump

 #166
20180038326
2018-02-08

Fuel pump

 #167
20180030983
2018-02-01

Vacuum pump with cooling apparatus

 #168
20180023565
2018-01-25

Pump assembly having integrated controller and motor with internal active cooling

 #169
20180016871
2018-01-18

Diverter valve for progressing cavity pump

 #170
20170350527
2017-12-07

Solenoid valve and oil pump

 #171
20170328362
2017-11-16

Integrated eccentric motor and pump

 #172
20170321794
2017-11-09

FLUID SUPPLY DEVICE FOR A TRANSMISSION FOR A MOTOR VEHICLE

 #173
20170314556
2017-11-02

Balance shaft module

 #174
20170306950
2017-10-26

Rotary pump comprising a lubricating groove in the sealing stay

 #175
20170298941
2017-10-19

Electric pump having plastic circuit housing

 #176
20170292419
2017-10-12

SYSTEMS OF PREVENTING ENGINE BEARING DAMAGE

 #177
20170284391
2017-10-05

Electric oil pump, in particular for a motor vehicle

 #178
20170276131
2017-09-28

Internal gear pump

 #179
20170268504
2017-09-21

Internal gear pump

 #180
20170241416
2017-08-24

Variable displacement oil pump

 #181
20170227006
2017-08-10

Gear pump with dual pressure relief

 #182
20170227003
2017-08-10

Oil pump having extension portions that reduce the effect of #the collapse of bubbles in the oil

 #183
20170191481
2017-07-06

Pump devices

 #184
20170184099
2017-06-29

Oil pump with sloping extension portion between discharge

 #185
20170184092
2017-06-29

INTEGRATED DISPLACEMENT CONTROLLED PUMP

 #186
20170183948
2017-06-29

PRECONDITIONING FLOW TO AN ELECTRICAL SUBMERSIBLE PUMP

 #187
20170122311
2017-05-04

Gerotor pump for a vehicle

 #188
20170082105
2017-03-23

Pump provided with a system for compensating the internal pressure

 #189
20170002809
2017-01-05

Rotating body, rotating body material, and method of manufacturing rotating body

 #190
20160363119
2016-12-15

Liquid pump and rankine cycle system

 #191
20160290334
2016-10-06

Polymeric materials

 #192
20160281713
2016-09-29

HIGH PRESSURE PUMP

 #193
20160265471
2016-09-15

Method for controlling an electric motor of a vehicle pump

 #194
20160252083
2016-09-01

Turbomachine which can be operated both as hydraulic motor and as pump

 #195
20160245283
2016-08-25

Electric Oil Pump

 #196
20160238093
2016-08-18

Hydraulic control device for drive power distribution device

 #197
20160236285
2016-08-18

Coring apparatus for rubber stator

 #198
20160230667
2016-08-11

Accumulator assisted gas turbine engine start system and methods therefor

 #199
20160223070
2016-08-04

Vehicle drive device

 #200
20160186753
2016-06-30

Trochoid pump with air ejection port

 #201
20160186746
2016-06-30

Liquid pump and rankine cycle apparatus

 #202
20160177948
2016-06-23

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

 #203
20160146331
2016-05-26

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

 #204
20160146205
2016-05-26

Structure for fixing shaft member in rotor member for fluid pump

 #205
20160146108
2016-05-26

Fuel pumping unit

 #206
20160138590
2016-05-19

Gerotor apparatus having outer gerotor with strengthening members

 #207
20160138587
2016-05-19

G-rotor pump assembly

 #208
20160123267
2016-05-05

Method and apparatus for operating an EC-fuel pump

 #209
20160090983
2016-03-31

Oil pump structure

 #210
20160084123
2016-03-24

Oil pump, engine cover and engine comprising the same

 #211
20160076539
2016-03-17

Electric oil pump

 #212
20160069345
2016-03-10

Internal gear pump including a separating piece

 #213
20160061313
2016-03-03

Oil suction device for vehicle

 #214
20160061201
2016-03-03

PUMP HAVING AN ELECTRIC MOTOR

 #215
20160025092
2016-01-28

Electric pump unit

 #216
20160025091
2016-01-28

Pump system

 #217
20160024898
2016-01-28

Oil Well Pump Apparatus

 #218
20160003245
2016-01-07

Oil pump and power transmitting device equipped with the same

 #219
20160003240
2016-01-07

Engine oil pump with reduced noise and vibration

 #220
20150377098
2015-12-31

Control device for oil pump

 #221
20150374906
2015-12-31

Operable implant

 #222
20150361978
2015-12-17

OIL PUMP FOR AUTOMATIC TRANSMISSION

 #223
20150361977
2015-12-17

OIL PUMP FOR AUTOMATIC TRANSMISSION

 #224
20150360669
2015-12-17

Hydraulic unit for vehicle brake apparatus

 #225
20150337835
2015-11-26

Pump

 #226
20150322942
2015-11-12

Oil pump, engine cover and engine comprising the same

 #227
20150285246
2015-10-08

Variable displacement oil pump

 #228
20150285244
2015-10-08

Oil pump, engine cover and engine comprising the same

 #229
20150275696
2015-10-01

Liquid pump including a gas accumulation area and rankine cycle device including a liquid pump

 #230
20150274141
2015-10-01

Internal gear pump for a hydraulic vehicle brake system

 #231
20150247497
2015-09-03

Waterproof pump enclosure and system including same

 #232
20150240813
2015-08-27

Electric gear pump with specific proportions for the fluid passages

 #233
20150240811
2015-08-27

Electric pump

 #234
20150204329
2015-07-23

PUMPING DEVICE

 #235
20150198158
2015-07-16

Displacement pump and a control ring for a displacement pump

 #236
20150184659
2015-07-02

Drive unit for a submersible oil pump, with a fluid passage allowing the fluid in the motor housing to be discharged to the ambient enviroment

 #237
20150167669
2015-06-18

PUMP STRUCTURE

 #238
20150159638
2015-06-11

Pump device

 #239
20150152871
2015-06-04

Method and pump arrangement for evacuating a chamber

 #240
20150152865
2015-06-04

Compact structure of gear pump designed to minimize loss of pumping torque

 #241
20150132172
2015-05-14

Pump device having a micro pump and bearing member for a micro pump

 #242
20150132170
2015-05-14

PUMP UNIT

 #243
20150132163
2015-05-14

ELECTRIC PUMP FOR A HYBRID VEHICLE

 #244
20150078948
2015-03-19

Oil pump

 #245
20150078944
2015-03-19

Variable displacement vane pump

 #246
20150071796
2015-03-12

Structure of a ventilated passage for ventilating the inside of the motor of an electric pump apparatus

 #247
20150050176
2015-02-19

Cycloidal Pinwheel Pair with Uniform Contact and One-tooth Difference

 #248
20150037193
2015-02-05

Oil return passage structure for oil pump

 #249
20150037181
2015-02-05

Pump arrangement having temperature control components

 #250
20150030488
2015-01-29

Gear pump

 #251
20140377114
2014-12-25

Internal gear pump

 #252
20140369879
2014-12-18

Hollow gerotor

 #253
20140369874
2014-12-18

Adjustable stop for check valve

 #254
20140348683
2014-11-27

SEALING SYSTEM FOR GEROTOR APPARATUS

 #255
20140341769
2014-11-20

Pump rotor and internal gear pump using the same

 #256
20140301877
2014-10-09

Pump device for delivering a medium

 #257
20140294649
2014-10-02

Sealing for a pump device

 #258
20140286801
2014-09-25

Pumping device for pumping oil from a storage container to a transmission system of a motor vehicle

 #259
20140284041
2014-09-25

Coolant supply device and supply method

 #260
20140255234
2014-09-11

Pump System

 #261
20140219852
2014-08-07

Gerotor hydraulic device with adjustable output

 #262
20140196447
2014-07-17

Hydraulic circuit for transmissions

 #263
20140178234
2014-06-26

Internal rotor-type fluid machine

 #264
20140178233
2014-06-26

Oil pump rotor

 #265
20140178219
2014-06-26

Electric pump

 #266
20140169995
2014-06-19

Electric oil pump

 #267
20140154125
2014-06-05

Gear ring pump including housing containing port support therein with the port support formed of a material having a greater heat expansion coefficient than a material of the housing

 #268
20140154120
2014-06-05

Internal gear pump including an outer ring having cam protruded parts

 #269
20140154119
2014-06-05

Internal gear pump

 #270
20140152084
2014-06-05

Rotating pump and brake system using same

 #271
20140134035
2014-05-15

Trochoidal rotary device

 #272
20140117748
2014-05-01

Rotary pump and braking system having the same

 #273
20140112816
2014-04-24

Internal gear pump

 #274
20140112813
2014-04-24

Hydraulic motor

 #275
20140090462
2014-04-03

Method for circuit separation testing in a double gearwheel pump

 #276
20140086778
2014-03-27

Internal gear pump having an internally toothed ring gear supported in a rotatable bearing

 #277
20140050562
2014-02-20

Rotary pump exhibiting an adjustable delivery volume, in particular for adjusting a coolant pump

 #278
20140030132
2014-01-30

Gear pump device with seal mechanism

 #279
20130323106
2013-12-05

Rotor for oil pump with different contours for the drive-side versus non-drive side of the teeth

 #280
20130281259
2013-10-24

Controlled gerotor actuated pre-trans parallel hybrid

 #281
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PUMP STRUCTURE FOR UREA SCR SYSTEM

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FRICTION BONDING STRUCTURE AND PUMP DEVICE

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Oil well pump apparatus

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Relief device for oil pump

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AUTOMATED HYDRAULIC POWER SYSTEM AND A METHOD OF OPERATING AN AUTOMATED HYDRAULIC POWER SYSTEM

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Housingless positive displacement pump assembly

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Electric pump unit

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Speed changing control method and speed changing mechanism thereof

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Enhancement of surface-active solid-phase heterogeneous catalysts

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Pumps and pump-heads with separately removable field-serviceable portion

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Internal-Rotation Type Gear Pump and Method of Assembling and Repairing an Internal-Rotation Type Gear Pump

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