Patents-Review.com
ClassID:

142569 ⎘

F04B1/0408 - CPC Classification

Classification description:

Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement; Details or component parts Pistons

Recent Application in this class:
#1
20260071614
2026-03-12

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

 #2
20260049602
2026-02-19

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

 #3
20260028971
2026-01-29

PISTON PUMP AND METHOD OF MANUFACTURING THE SAME

 #4
20250347269
2025-11-13

PISTON PUMP AND METHOD OF MANUFACTURING THE SAME

 #5
20250257728
2025-08-14

PUMP WITH CONDUIT SYSTEM FLUIDLY COUPLED TO CYLINDERS

 #6
20250223962
2025-07-10

FLUID END ASSEMBLY

 #7
20250207574
2025-06-26

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

 #8
20250075697
2025-03-06

Fluid end assembly

 #9
20250075688
2025-03-06

FLUID WORKING MACHINE

 #10
20240426294
2024-12-26

FLUID END ASSEMBLY

 #11
20240352890
2024-10-24

Oil pump for gas turbine engine and associated method of pumping oil

 #12
20240254986
2024-08-01

Flexible manifold for reciprocating pump

 #13
20240218864
2024-07-04

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

 #14
20240209845
2024-06-27

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

 #15
20240175433
2024-05-30

Fracturing pump arrangement using a plunger with an internal fluid passage

 #16
20240167471
2024-05-23

Fluid dispensing system having a piston rod and wear sleeve

 #17
20240068455
2024-02-29

Fracturing pump arrangement using a plunger with an internal fluid passage

 #18
20230383746
2023-11-30

Piston with sleeve for fluid pump

 #19
20230304462
2023-09-28

Gasoline direct injection fuel pump with isolated plunger sleeve

 #20
20230287882
2023-09-14

Fluid end assembly

 #21
20230279846
2023-09-07

System and method for sealing fluid passages in reciprocating engine

 #22
20230193884
2023-06-22

Fracturing pump arrangement using a plunger with an internal fluid passage

 #23
20230116452
2023-04-13

FLUID END ASSEMBLY

 #24
20230091943
2023-03-23

POSITIVE DISPLACEMENT PRESSURIZING/DEPRESSURIZING PUMP

 #25
20230075447
2023-03-09

Fracturing pump arrangement using a plunger with an internal fluid passage

 #26
20230053004
2023-02-16

Removable piston rod sleeve for fluid pump

 #27
20230042317
2023-02-09

Radial piston hydraulic device distributed by pilot operated check valves

 #28
20220372972
2022-11-24

Fluid end assembly

 #29
20220349394
2022-11-03

RADIAL RECIPROCATING ENGINE HAVING A BALL PISTON

 #30
20220316461
2022-10-06

Plunger, hydraulic end and plunger pump

 #31
20220275778
2022-09-01

Roller tappet for a high-pressure fuel pump

 #32
20220195853
2022-06-23

Fracturing pump with in-line fluid end

 #33
20220154704
2022-05-19

Flexible manifold for reciprocating pump

 #34
20220145867
2022-05-12

Filling device for filling a defined quantity of a product

 #35
20220119140
2022-04-21

Pump comprising balls for displacement of fluid

 #36
20220003233
2022-01-06

High-pressure fuel pump

 #37
20210293227
2021-09-23

HIGH-PRESSURE HOMOGENISER

 #38
20210231121
2021-07-29

Piston rod assembly for a fluid pump

 #39
20210215154
2021-07-15

Fluid end assembly

 #40
20210131407
2021-05-06

Automatic bidirectional valve and pump provided with said valve

 #41
20210123440
2021-04-29

Pump assemblies configured for drive and pump end interchangeability

 #42
20200362855
2020-11-19

Flexible manifold for reciprocating pump

 #43
20200347706
2020-11-05

Fracturing pump with in-line fluid end

 #44
20200300240
2020-09-24

Fluid end assembly

 #45
20200291928
2020-09-17

Hydraulic fluid pump and retainer assembly for same

 #46
20200284253
2020-09-10

Fluid end assembly

 #47
20200262401
2020-08-20

Pressure-medium control valve and piston pump for an electronically slip-controllable vehicle brake system

 #48
20200224646
2020-07-16

Piston pump, particularly a high-pressure fuel pump for an internal combustion engine

 #49
20200208619
2020-07-02

ROTARY CYLINDER DEVICE

 #50
20200200156
2020-06-25

PUMPING DEVICE

 #51
20200191129
2020-06-18

Piston pump

 #52
20200166025
2020-05-28

Pump and a desalination system including the pump

 #53
20200131605
2020-04-30

Aluminum alloy

 #54
20200116141
2020-04-16

High pressure pump and method for compressing a fluid

 #55
20200088190
2020-03-19

Piston rod assembly for a paint pump

 #56
20200080541
2020-03-12

Method and system for harnessing wind energy using a tethered airfoil

 #57
20190301615
2019-10-03

Packing stack carrier for paint and other fluid pumps

 #58
20190271396
2019-09-05

Rotating piston for pumps

 #59
20190113032
2019-04-18

High pressure fuel pump

 #60
20190093616
2019-03-28

Piston device and pump device

 #61
20190032685
2019-01-31

Bellows system for fluid end

 #62
20190017503
2019-01-17

Fluid end assembly

 #63
20180372044
2018-12-27

High pressure pump with pump spring sealing sleeve

 #64
20180347417
2018-12-06

Hydraulic piston with a cooling and lubricating gasket valve

 #65
20180274647
2018-09-27

Cam follower roller device

 #66
20180238324
2018-08-23

Removable piston rod sleeve for fluid pump

 #67
20180180006
2018-06-28

Piston fuel pump for an internal combustion engine

 #68
20180163710
2018-06-14

Cam mechanism for the implementation of a variable stroke

 #69
20180135621
2018-05-17

Fluid end and center feed suction manifold

 #70
20180135619
2018-05-17

High-pressure fuel pump

 #71
20180112653
2018-04-26

Pump and a desalination system including the pump

 #72
20180017047
2018-01-18

BOX LUBRICATION PUMP

 #73
20180017046
2018-01-18

BOX LUBRICATION PUMP

 #74
20180010602
2018-01-11

High-pressure pump and production method thereof

 #75
20170373766
2017-12-28

System for piston rod monitoring

 #76
20170333963
2017-11-23

Method of manufacturing piston of pump for brake system and pump for brake system including the piston

 #77
20170328322
2017-11-16

Pump, in particular high-pressure fuel pump

 #78
20170306912
2017-10-26

Piston fuel pump for an internal combustion engine

 #79
20170291586
2017-10-12

Piston pump having a stepped piston

 #80
20170260947
2017-09-14

Reciprocating pump

 #81
20170211558
2017-07-27

High-pressure pump control unit

 #82
20170191563
2017-07-06

Rotating piston for pumps

 #83
20170191478
2017-07-06

Fluted piston components for pumps

 #84
20170184064
2017-06-29

Fuel pump

 #85
20170159628
2017-06-08

High-pressure fuel pump and pressure control device

 #86
20170089311
2017-03-30

Single piston pump with reduced piston side loads

 #87
20170082094
2017-03-23

Pump

 #88
20170016441
2017-01-19

High pressure sealing arrangement

 #89
20170009767
2017-01-12

Piston fuel pump for an internal combustion engine

 #90
20160377079
2016-12-29

Hydraulic machine

 #91
20160377042
2016-12-29

High pressure pump

 #92
20160356160
2016-12-08

Fluid working machine having offset valve cylinders

 #93
20160280350
2016-09-29

Side-intake piston jet propulsor

 #94
20160245248
2016-08-25

Fuel pump

 #95
20160201461
2016-07-14

Piston unit and hydrostatic radial-piston machine

 #96
20160160847
2016-06-09

Piston pump for brake

 #97
20160138541
2016-05-19

Mechanical system forming a cam follower or a rocker arm

 #98
20160131131
2016-05-12

Wiper seal assemblies for a reciprocating pump and methods relating thereto

 #99
20160123311
2016-05-05

Fluid working machine having first and second valve cylinder devices in fluid communication with each other via a common conduit

 #100
20160108900
2016-04-21

Piston pump

 #101
20160076524
2016-03-17

Piston included in liquid-pressure rotating device and liquid-pressure rotating device

 #102
20150361976
2015-12-17

Output shaft lubricating structure of liquid pressurizing pump

 #103
20150361937
2015-12-17

Tappet

 #104
20150336454
2015-11-26

Hydraulic motor integrated in a vehicular wheel

 #105
20150300476
2015-10-22

Cam follower roller device, notably for a fuel injection pump

 #106
20150300331
2015-10-22

PUMP MECHANISM

 #107
20150292491
2015-10-15

Pump Element for a Hydraulic Unit having a Pump Piston

 #108
20150209986
2015-07-30

Method for producing a piston

 #109
20150192098
2015-07-09

Tappet

 #110
20150096515
2015-04-09

Mechanical system, injection pump and valve actuator comprising such a mechanical system and manufacturing method

 #111
20150004012
2015-01-01

Lubrication apparatus of high pressure pump for common rail system

 #112
20140363324
2014-12-11

Piston pump for a vehicle brake system

 #113
20140308143
2014-10-16

Plunger pump

 #114
20140255226
2014-09-11

Box lubrication pump

 #115
20140015202
2014-01-16

High pressure sealing arrangement

 #116
20130228071
2013-09-05

Piston unit

 #117
20130213181
2013-08-22

Roller tappet

 #118
20130209301
2013-08-15

Radial piston machine and piston for a radial piston machine of this type

 #119
20130167957
2013-07-04

Hydraulic piston pump with a variable displacement throttle mechanism

 #120
20130104818
2013-05-02

Tappet

 #121
20130104730
2013-05-02

Pump, in particular a high-pressure fuel pump

 #122
20130084198
2013-04-04

PUMP WITH CENTRALIZED SPRING FORCES

 #123
20130064692
2013-03-14

Filter and retainer assembly for piston pump

 #124
20130061744
2013-03-14

Offset cam for piston pump

 #125
20130017108
2013-01-17

High pressure pump

 #126
20120234277
2012-09-20

Roller tappet

 #127
20120199103
2012-08-09

High-Pressure Fuel Pump

 #128
20120195779
2012-08-02

High pressure pump

 #129
20120195778
2012-08-02

HIGH PRESSURE PUMP

 #130
20120145131
2012-06-14

Fuel supply pump

 #131
20120111185
2012-05-10

Compact Eccentric Radial Piston Hydraulic Machine

 #132
20120080013
2012-04-05

HIGH PRESSURE PUMP AND TAPPET ASSEMBLY

 #133
20120079936
2012-04-05

POSITIVE DISPLACEMENT MACHINE PISTON WITH WAVY SURFACE FORM

 #134
20120073133
2012-03-29

Method of manufacturing a piston for a hydraulic motor having radial pistons

 #135
20120051950
2012-03-01

ENGINE OIL PUMP PROVIDED AUTOMATIC ADJUSTMENT OF OIL SUPPLY AMOUNT

 #136
20120042776
2012-02-23

Piston Guide Element

 #137
20120036996
2012-02-16

Piston Pumps for a Hydraulic Vehicle Brake System

 #138
20110303195
2011-12-15

Single piston pump with dual return springs

 #139
20110274573
2011-11-10

Half-sleeved and sleeveless plastic piston pumps

 #140
20110253109
2011-10-20

High-pressure fuel pump assembly mechanism

 #141
20110239857
2011-10-06

Piston pump

 #142
20110138997
2011-06-16

Coupling arrangement providing an axial space between a plunger and plunger adaptor of a high pressure fluid pump

 #143
20110115283
2011-05-19

Sealing structure for piston and piston pump and brake hydraulic pressure control device incorporating the structure

 #144
20110108007
2011-05-12

Fuel pump with reduced seal wear for a direct injection system

 #145
20110073078
2011-03-31

HIGH-PRESSURE FUEL PUMP

 #146
20110070112
2011-03-24

Piston pump assembly having a cylinder member with strain-absorbing portions

 #147
20110030213
2011-02-10

HYDRAULIC INSTALLATION TOOL FOR PUMP PLUNGER

 #148
20100294126
2010-11-25

Hydraulic fluid pump having a sealing element

 #149
20100276234
2010-11-04

Pump element, hydraulic block with pump element, and installation method

 #150
20100269795
2010-10-28

Pump, in particular high-pressure fuel pump

 #151
20100266427
2010-10-21

GUIDE RING FOR A PISTON PUMP, AND PISTON PUMP

 #152
20100215530
2010-08-26

Piston pump for a vehicle brake system, having a piston rod

 #153
20100209273
2010-08-19

Piston pump

 #154
20100140879
2010-06-10

Piston with guide rings

 #155
20100098567
2010-04-22

Piston pump

 #156
20100083821
2010-04-08

Piston pump for a vehicle brake system

 #157
20100074783
2010-03-25

High pressure pump having plunger

 #158
20100074782
2010-03-25

High pressure pump having plunger

 #159
20100054967
2010-03-04

High-Pressure Fuel Pump

 #160
20100043760
2010-02-25

Fuel pump

 #161
20100040486
2010-02-18

High pressure pump

 #162
20090272260
2009-11-05

Pressure attenuated pump piston

 #163
20090269227
2009-10-29

PISTON PUMP WITH AT LEAST ONE STEPPED PISTON ELEMENT

 #164
20090269226
2009-10-29

Pump drive cartridge assembly

 #165
20090183629
2009-07-23

Piston for radial piston hydraulic engine and method for making same

 #166
20090165641
2009-07-02

Piston for a hydraulic motor having radial pistons, and a method of manufacturing such a piston

 #167
20090158924
2009-06-25

PISTON PUMP

 #168
20090114190
2009-05-07

High pressure pump and method of reducing fluid mixing within same

 #169
20090110571
2009-04-30

HYDRAULIC PUMP FOR BRAKE SYSTEM

 #170
20090104045
2009-04-23

High pressure pump having plunger

 #171
20090097991
2009-04-16

Fuel pump

 #172
20080310971
2008-12-18

Piston pump

 #173
20080307955
2008-12-18

Piston pump with compact retention device for a restoring spring

 #174
20080247891
2008-10-09

High-pressure pump piston/cylinder unit

 #175
20080246225
2008-10-09

Piston pump

 #176
20080236385
2008-10-02

Piston pump with reduced clearance volume

 #177
20080226479
2008-09-18

Piston pump with improved piston

 #178
20080206081
2008-08-28

Piston pump

 #179
20080205802
2008-08-28

Radial piston machine

 #180
20080060513
2008-03-13

Piston cartridge

 #181
20080031754
2008-02-07

Piston pump

 #182
20080031744
2008-02-07

High-pressure pump for a fuel injection system of an internal combustion engine

 #183
20080025855
2008-01-31

Piston Pump And Piston Ring

 #184
20080017140
2008-01-24

Rotary radial piston machine

 #185
20070289442
2007-12-20

Half-sleeved and sleeveless plastic piston pumps

 #186
20070128058
2007-06-07

High-pressure pump

 #187
20070114837
2007-05-24

Braking system for vehicle

 #188
20070098580
2007-05-03

Pump gear

 #189
20070041850
2007-02-22

Multi-piston pump and valve arrangement

 #190
20060275165
2006-12-07

Pump with reciprocating high pressure seal and valve for vehicle braking systems

 #191
20060275164
2006-12-07

High pressure pump

 #192
20060201484
2006-09-14

High pressure pump and method of reducing fluid mixing within same

 #193
20060182640
2006-08-17

High pressure pump

 #194
20060177326
2006-08-10

Piston pump

 #195
20060159555
2006-07-20

High pressure pump having plunger

 #196
20060104843
2006-05-18

High pressure fuel pump

 #197
20060083629
2006-04-20

Piston pump

 #198
20060062677
2006-03-23

High pressure pump

 #199
20060013702
2006-01-19

Conveyor device

 #200
20050132879
2005-06-23

Piston pump useful for aerosol generation

 #201
20050074349
2005-04-07

Pump with reciprocating high pressure seal and valve for vehicle braking systems

 #202
20050063846
2005-03-24

Piston pump

 #203
20050063835
2005-03-24

Surfaces of the polygon or piston base stroke disc of injection pumps and processes for their manufacture

 #204
19069120
2025-11-11

Piston pump and method of manufacturing the same

 #205
18658876
2025-04-08

Piston pump and method of manufacturing the same