ClassID:

143526

F04C15/0026 - CPC Classification

Classification description:

Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups  - ; Sealing arrangements in rotary-piston machines or pumps; Axial sealings for working fluid Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Recent Application in this class:
#1
20250180016
2025-06-05

Bearing for Pump

#2
20240301878
2024-09-12

SPRING RETAINER FOR GEAR PUMP BEARING PLATE

#3
20240287987
2024-08-29

SEALANT APPLICATION SYSTEM

#4
20240280098
2024-08-22

Internal gear pump and internal gear motor

#5
20230175503
2023-06-08

Spring retainer for gear pump bearing plate

#6
20230141341
2023-05-11

Pressure pockets on the hollow wheel

#7
20230138342
2023-05-04

Rotary positive displacement pump

#8
20230127244
2023-04-27

Gear pump with cooled journal bearings

#9
20230062955
2023-03-02

Pump system and method for optimized torque requirements and volumetric efficiencies

#10
20230033416
2023-02-02

Controlling pressure on a journal bearing

#11
20230014002
2023-01-19

Bushing assembly and positive displacement rotary pump comprising said bushing assembly

#12
20220307499
2022-09-29

Electric pump

#13
20220307496
2022-09-29

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

#14
20220145884
2022-05-12

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

#15
20220112894
2022-04-14

Helical gear pump and helical gear motor

#16
20220112808
2022-04-14

Rotary pump with discharge control

#17
20220074409
2022-03-10

Gear pump with self-lubricating bearings

#18
20220074406
2022-03-10

Oil pump including resin pump cover

#19
20220065246
2022-03-03

Rotary pump with rotor bearing ring

#20
20210396226
2021-12-23

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

#21
20210372399
2021-12-02

HIGH PRESSURE PUMP

#22
20210310485
2021-10-07

Geared volumetric machine

#23
20210262464
2021-08-26

Positive displacement pump including an unloading device

#24
20210095663
2021-04-01

Gear pump

#25
20200392997
2020-12-17

Bearing with an eccentric seal groove

#26
20200362860
2020-11-19

Compact dual-section gear pump

#27
20200347726
2020-11-05

Sealing arrangement

#28
20200240408
2020-07-30

Stabilizing bushing constructed of fiber reinforced structural composite

#29
20200141402
2020-05-07

Gear pump device having three member seal mechanism containing fitted insertion part to seal axial face of gear pump between inner and outer gear

#30
20200072214
2020-03-05

Oil pump including gap between flange portion of tubular core and flange-opposing portion of resin housing

#31
20200003208
2020-01-02

Adaptive self-sealing microfluidic gear pump

#32
20190301455
2019-10-03

Rotary pump with a lubricant feed connecting a rotor bearing and a radial sealing gap

#33
20190285068
2019-09-19

Positive displacement pump including an unloading device

#34
20190242410
2019-08-08

Miniature high pressure pump and electrical hydraulic actuation system

#35
20190032654
2019-01-31

Geared positive-displacement machine with integral rolling tracks for the rolling bodies

#36
20190003478
2019-01-03

Self adjusting pump for ice cream freezer

#37
20180320685
2018-11-08

Multi-phase pump with cooled liquid reservoir

#38
20180298899
2018-10-18

Gear pump journal bearing lubrication flow feed

#39
20180245589
2018-08-30

Variable oil pump

#40
20180245588
2018-08-30

Variable oil pump

#41
20180209419
2018-07-26

Fuel flow control assembly of aircraft engine and method

#42
20180180045
2018-06-28

Pump and system for supplying a consumer

#43
20180142686
2018-05-24

Positive-Displacement Pump, Method for Operating a Positive-Displacement Pump, and Steering System

#44
20180112662
2018-04-26

GEAR PUMP DEVICE

#45
20180100504
2018-04-12

GEAR PUMP BEARING

#46
20180051696
2018-02-22

Bearing structures for gear pumps

#47
20180051695
2018-02-22

Pump for an engine

#48
20180030982
2018-02-01

Geared fluid machine with circumferential seal having first and second spaced apart seal limbs

#49
20170284391
2017-10-05

Electric oil pump, in particular for a motor vehicle

#50
20170107872
2017-04-20

Lubricating fluid system for a vehicle with self compensation plate

#51
20170058894
2017-03-02

Pump with shaped face seal

#52
20160265528
2016-09-15

Gear pump or hydraulic gear motor with helical toothing provided with hydraulic system for axial thrust balance

#53
20160201694
2016-07-14

Miniature high pressure pump and electrical hydraulic actuation system

#54
20160169225
2016-06-16

Hydraulic device

#55
20160069345
2016-03-10

Internal gear pump including a separating piece

#56
20160061200
2016-03-03

Screw pump with vapor barrier

#57
20160047377
2016-02-18

Positive displacement gear pump

#58
20160046271
2016-02-18

Pre-assemblage internal gear pump

#59
20160009264
2016-01-14

Internal gear pump

#60
20150369242
2015-12-24

Internal gear pump having a rotationally fixed axial disk

#61
20150354562
2015-12-10

Gear pump driven gear stationary bearing

#62
20150354561
2015-12-10

Gear pump drive gear stationary bearing

#63
20150337836
2015-11-26

Gear pump

#64
20150337835
2015-11-26

Pump

#65
20150322945
2015-11-12

Rotary fluid machine

#66
20150308428
2015-10-29

Gear machine with eccentricity at the gearwheels

#67
20150274141
2015-10-01

Internal gear pump for a hydraulic vehicle brake system

#68
20150267701
2015-09-24

Motor-pump unit

#69
20150267699
2015-09-24

Motor-pump unit

#70
20150132171
2015-05-14

Roots-style blower with leakage mechanisms

#71
20150096294
2015-04-09

Rotating pumping apparatus with seal mechanism

#72
20150030488
2015-01-29

Gear pump

#73
20150017049
2015-01-15

Oil pump

#74
20150017046
2015-01-15

Rotary compressor having gate axially movable with respect to rotor

#75
20140377114
2014-12-25

Internal gear pump

#76
20140369876
2014-12-18

Gear pump and gear pump operating method

#77
20140345451
2014-11-27

Method and device for fixing and synchronizing rotary pistons in a rotary piston pump

#78
20140294649
2014-10-02

Sealing for a pump device

#79
20140294648
2014-10-02

Apparatus for sealing a pump chamber of a rotary lobe pump, and a rotary lobe pump having said apparatus

#80
20140294627
2014-10-02

Liquid pump

#81
20140271311
2014-09-18

Internal gear pump with axial disk and intermediate piece

#82
20140212316
2014-07-31

Double-helical gear rotary positive displacement pump

#83
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

#84
20140152084
2014-06-05

Rotating pump and brake system using same

#85
20140117748
2014-05-01

Rotary pump and braking system having the same

#86
20140056746
2014-02-27

Elliptical gear pump fluid driving apparatus

#87
20140030132
2014-01-30

Gear pump device with seal mechanism

#88
20140010696
2014-01-09

Axial disc and gear pump with axial disc

#89
20140003987
2014-01-02

Aircraft main engine fuel pump with multiple gear stages using shared journals

#90
20130330223
2013-12-12

Internal gear pump having a lubricant feed from the suction region

#91
20130302201
2013-11-14

Gear Pump

#92
20130228148
2013-09-05

Oil pump apparatus

#93
20130223999
2013-08-29

DUAL-CHAMBER OIL PUMP

#94
20130156564
2013-06-20

MULTI-DISCHARGE HYDRAULIC VANE PUMP

#95
20120315175
2012-12-13

Double internal gear pump

#96
20120308423
2012-12-06

Oil pump

#97
20120244028
2012-09-27

Internal Gear Pump for a Hydraulic Vehicle Braking System

#98
20120242140
2012-09-27

PUMP DEVICE

#99
20120219442
2012-08-30

Pump device for ice cream or yogurt machine

#100
20120207639
2012-08-16

Rotary compressor having gate axially movable with respect to rotor

#101
20120177518
2012-07-12

Semi-plugged star gerotor and method of assembling the same

#102
20120156080
2012-06-21

Hydraulic Toothed Wheel Machine

#103
20120051961
2012-03-01

Pump apparatus with pressing means

#104
20120034121
2012-02-09

Balance plate assembly for a fluid device

#105
20110229361
2011-09-22

Rotary pump including inner rotor and outer rotor having different axial size of an axial clearance

#106
20110211984
2011-09-01

Pump unit of a vane pump with movable sleeve and spring element

#107
20110150687
2011-06-23

Progressive cavity pump including inner and outer rotors and a wheel gear maintaining an interrelated speed ratio

#108
20110150684
2011-06-23

Variable displacement vane pump

#109
20110103992
2011-05-05

GEAR PUMPS AND METHODS FOR USING GEAR PUMPS

#110
20100247362
2010-09-30

Gear Pump

#111
20100239449
2010-09-23

Gear pump having optimal axial play

#112
20100237689
2010-09-23

Gear pump and gear pump for brake apparatus

#113
20100215538
2010-08-26

Fuel pump

#114
20100202913
2010-08-12

GEAR PUMP

#115
20100196186
2010-08-05

GEAR PUMP

#116
20100150764
2010-06-17

Pump having modular shaft bearings and seals

#117
20100124513
2010-05-20

Gear pump

#118
20100060074
2010-03-11

Rotary pump and brake device in which rotary pump is provided

#119
20090304540
2009-12-10

PD pumps with a common gearbox module and varying capacities and easy access to mechanical seals

#120
20090175751
2009-07-09

Electric pump with relief valve

#121
20090162232
2009-06-25

Vane pump

#122
20090160134
2009-06-25

Rotary transmission leadthrough and torque transmission device with a rotary transmission leadthrough

#123
20090148333
2009-06-11

Gear pump cavitation reduction

#124
20090123320
2009-05-14

Power steering system hydraulic pump

#125
20090110584
2009-04-30

High pressure telescoping gear pumps and motors

#126
20090081064
2009-03-26

Rotary compressor having gate axially movable with respect to rotor

#127
20090081063
2009-03-26

Rotary fluid-displacement assembly

#128
20080298994
2008-12-04

Power transfer assembly with high efficiency pump

#129
20080219876
2008-09-11

Rotary piston machine

#130
20080099271
2008-05-01

Variable displacement pump

#131
20070264148
2007-11-15

Gear pump arrangement with erosion resistant insert

#132
20070253855
2007-11-01

Pump apparatus and power steering

#133
20070248482
2007-10-25

Inner gear being biased to pump cover due to meshing of inner and outer gears

#134
20060263229
2006-11-23

Balancing plate—shuttle ball

#135
20060251528
2006-11-09

Metering pump for varnish or lacquer

#136
20060140811
2006-06-29

Gear pump having optimal axial play

#137
20060088432
2006-04-27

High efficiency gerotor pump

#138
20060051229
2006-03-09

Axial piston engine with integrated filling pump

#139
20050226757
2005-10-13

Variable capacity pump/motor

#140
20050058566
2005-03-17

Gear motor start up control

#141
17968998
2023-06-20

Hydraulic gear pump with radial pressure compensator

#142
17672906
2023-04-11

Anchored low pressure gear pump wear plate

#143
16951512
2023-06-20

Hydraulic gear pump with axial compensation

#144
16951480
2022-11-22

Hydraulic gear pump with radial pressure compensator