ClassID:

142708

F04B9/042 - CPC Classification

Classification description:

Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams

Recent Application in this class:
#1
20260139646
2026-05-21

GAS SUPPLY PUMP FOR SHIP DUAL FUEL ENGINE

#2
20260078870
2026-03-19

COMPACT VOLUMETRIC PUMP

#3
20260063115
2026-03-05

CONSTANT FLOW PUMP

#4
20260028971
2026-01-29

PISTON PUMP AND METHOD OF MANUFACTURING THE SAME

#5
20250376977
2025-12-11

PUMP DRIVE SYSTEM

#6
20250347269
2025-11-13

PISTON PUMP AND METHOD OF MANUFACTURING THE SAME

#7
20250249568
2025-08-07

HYDRAULIC PUMP

#8
20250207575
2025-06-26

DRIVE SYSTEM FOR A POSITIVE DISPLACEMENT PUMP

#9
20250172132
2025-05-29

GAS SUPPLY PUMP FOR SHIP DUAL FUEL ENGINE

#10
20240401581
2024-12-05

MULTIPLE DIAPHRAGM PUMP

#11
20240376886
2024-11-14

ACTIVE PRESSURE COMPENSATOR FOR DEEP-SEA SAMPLING AND PRESSURE COMPENSATION METHOD THEREOF

#12
20240328389
2024-10-03

WIND TURBINE GENERATOR WITH HYDRAULIC PUMP

#13
20240309859
2024-09-19

PISTON COMPRESSOR AND METHOD OF OPERATING THE SAME

#14
20240301876
2024-09-12

HIGH-PRESSURE WATER PUMP LUBRICATED BY WATER OR AQUEOUS SOLUTION

#15
20240261953
2024-08-08

Hydraulic pump

#16
20240247647
2024-07-25

COMPACT VOLUMETRIC PUMP

#17
20240229783
2024-07-11

Balanced Pump-Axial Piston Pump

#18
20240229781
2024-07-11

Piston Compressor

#19
20240209854
2024-06-27

RADIAL PISTON PUMPS

#20
20240167462
2024-05-23

DESMODROMIC MECHANISM AND FLUID PUMP

#21
20240141880
2024-05-02

BATTERY-OPERATED RECIPROCATING PUMP FOR LUBRICANTS

#22
20240125313
2024-04-18

Drive system for a positive displacement pump

#23
20240068458
2024-02-29

INLINE FLUID DISPENSE PUMP ASSEMBLY

#24
20240068457
2024-02-29

ROTATING RECIPROCATING PISTON PUMP WITH A BARREL CAM

#25
20240026906
2024-01-25

VARIABLE OUTPUT, HYDRAULIC DRIVE SYSTEM

#26
20240003322
2024-01-04

FUEL PUMP

#27
20230321341
2023-10-12

PRECISION PUMP WITH AUTOMATIC VALVE SWITCHING AND LOW TOLERANCE STACK-UP USING SIDE PORTED CANNULA FOR SMALL VOLUME PUMPING

#28
20230287873
2023-09-14

FUEL PUMP ASSEMBLY

#29
20230220838
2023-07-13

Gas supply pump for ship dual fuel engine

#30
20230213010
2023-07-06

High-pressure fuel pump

#31
20230167794
2023-06-01

SLIDING CAM FOLLOWER

#32
20230160385
2023-05-25

PUMP ACTUATOR WITH STAMP-ALIGNED ANTI-ROTATION FEATURE

#33
20230075848
2023-03-09

OSCILLATORY-ROTARY LIQUID DISPENSING DEVICE WITH SPRING, AND ASSOCIATED METHOD

#34
20230064224
2023-03-02

VALVE SHAFT PUMP WITH COORDINATED PUMPING AND VALVING OPERATIONS

#35
20230018875
2023-01-19

Supply pump

#36
20220275778
2022-09-01

Roller tappet for a high-pressure fuel pump

#37
20220220950
2022-07-14

PUMP DRIVE SYSTEM

#38
20220185257
2022-06-16

Piston pump for brake system

#39
20220170452
2022-06-02

FLUID EJECTION APPARATUS FOR DISCREET PACKET TRANSFER OF FLUID

#40
20220163021
2022-05-26

Pump And Releasably Coupled Pump Actuator

#41
20220119140
2022-04-21

Pump comprising balls for displacement of fluid

#42
20220099083
2022-03-31

Multiple diaphragm pump

#43
20220099074
2022-03-31

Plunger pump, liquid feeding device, and liquid chromatography device

#44
20220042499
2022-02-10

Wobble plate pump drive with gear box

#45
20220018366
2022-01-20

Variable output, hydraulic drive system

#46
20210317827
2021-10-14

Control arrangement for variable displacement pump

#47
20210310475
2021-10-07

Drive system for a positive displacement pump

#48
20210301801
2021-09-30

Pump drive system

#49
20210301799
2021-09-30

Leveraged Compressor

#50
20210301661
2021-09-30

Piston cam drive

#51
20210254615
2021-08-19

Variable flow rate mechanical pump assembly

#52
20210215127
2021-07-15

METHOD FOR MANUFACTURING ASSEMBLY, PARTS SET, METHOD FOR MANUFACTURING FUEL INJECTION PUMP, AND FUEL INJECTION PUMP

#53
20210190049
2021-06-24

HIGH PRESSURE PUMP

#54
20210155005
2021-05-27

Fluid pumps with shifters

#55
20210122342
2021-04-29

Piston pump assembly for a hydraulic power vehicle braking system

#56
20210033079
2021-02-04

Valves

#57
20210017969
2021-01-21

Micropump with cam mechanism for axial displacement of rotor

#58
20200378375
2020-12-03

Micropump

#59
20200277922
2020-09-03

Fuel injection pump

#60
20200200133
2020-06-25

Camshaft for a pump, in particular a high pressure fuel pump, and pump having a camshaft

#61
20200116147
2020-04-16

Piston pump for brake

#62
20200094803
2020-03-26

Brake system

#63
20200072201
2020-03-05

Reciprocating pumps having a pivoting arm

#64
20200025189
2020-01-23

Compressor assembly for a compressed-air feed of a compressed-air supply system

#65
20200001446
2020-01-02

Hydraulic piston pump for a hydraulic tool

#66
20190368485
2019-12-05

Pump actuator with stamp-aligned anti-rotation feature

#67
20190353147
2019-11-21

INJECTION PUMP

#68
20190345919
2019-11-14

PRESS MACHINE

#69
20190329565
2019-10-31

Diaphragm pump, pump unit, and inkjet printer

#70
20190316668
2019-10-17

ROLLER LIFTER AND METHOD OF MANUFACTURING THE SAME

#71
20190316573
2019-10-17

Pump

#72
20190234454
2019-08-01

Pump Apparatus and Brake Apparatus

#73
20190195208
2019-06-27

Non-pulsation pump having stroke adjustment mechanism

#74
20190176786
2019-06-13

Piston pump having an operating chamber with an inlet and an outlet a pressure medium connection and a connecting duct fluidly connecting the pressure medium connection to the operating chamber in an alternating controllable manner

#75
20190162141
2019-05-30

Roller drive mechanism for GDI pump

#76
20190154016
2019-05-23

Fluid pump with cam geometry to reduce pulsations

#77
20190145365
2019-05-16

Fuel pump

#78
20190107106
2019-04-11

Fuel pump for pressurizing low pressure fuel suctioned into a pressurizing chamber and discharging high pressure fuel pressurized in the pressurizing chamber

#79
20190063414
2019-02-28

Pressurized fluid supply apparatus and method of supplying pressurized fluid

#80
20190063413
2019-02-28

BARREL CAM DRIVEN RECIPROCATING PUMP

#81
20190048837
2019-02-14

Fuel Pump For A Fuel Injection System

#82
20190047339
2019-02-14

Tire inflation system

#83
20190032685
2019-01-31

Bellows system for fluid end

#84
20190024773
2019-01-24

Self-aligning cam follower roller device

#85
20190024645
2019-01-24

Method to form impulse jet

#86
20190017499
2019-01-17

Multiple diaphragm pump

#87
20190003475
2019-01-03

Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism

#88
20180368551
2018-12-27

Device for dispensing a fluid product

#89
20180347687
2018-12-06

Transmission arrangement for a motor vehicle

#90
20180313313
2018-11-01

High-pressure fuel supply pump, manufacturing method thereof, and method of bonding two members

#91
20180306172
2018-10-25

Piston pump assembly comprising piston with variable stroke and vehicle braking system comprising the same

#92
20180266374
2018-09-20

Tappet roller retaining approach

#93
20180230979
2018-08-16

Reciprocating pump and transmission assembly having a one-way clutch

#94
20180209414
2018-07-26

DIRECT ACTUATED VALVE CONTROL HYDRAULIC PUMP AND MOTOR

#95
20180187663
2018-07-05

Precision fuel additive system

#96
20180187637
2018-07-05

High-pressure pump

#97
20180172323
2018-06-21

Caloric heat pump system

#98
20180171949
2018-06-21

Common rail multi-cylinder fuel pump with independent pumping plunger extension

#99
20180163710
2018-06-14

Cam mechanism for the implementation of a variable stroke

#100
20180135578
2018-05-17

Pinless tappet in a common rail high pressure fuel pump

#101
20180119658
2018-05-03

Fuel supply device and fuel supply method

#102
20180087492
2018-03-29

Lubrication pump

#103
20180066646
2018-03-08

Metering for fluid motor and pump combination

#104
20180066638
2018-03-08

High pressure pump

#105
20180058728
2018-03-01

Pump for a heat pump system

#106
20180030966
2018-02-01

DEVICE OF GREASE GUN

#107
20180023854
2018-01-25

CALORIC HEAT PUMP SYSTEM

#108
20180023853
2018-01-25

Caloric heat pump system

#109
20180023852
2018-01-25

Caloric heat pump system

#110
20180014878
2018-01-18

DIAPHRAGM PUMPS FOR MEDICAL APPLICATIONS

#111
20180003169
2018-01-04

Peristaltic pumphead and methods for assembly thereof

#112
20180003166
2018-01-04

Delivery device

#113
20170342969
2017-11-30

Pump, in particular a high-pressure fuel pump

#114
20170335832
2017-11-23

Pump System for Inline Conditioning

#115
20170321644
2017-11-09

Method and device for controlling a high-pressure fuel pump in an internal combustion engine

#116
20170306935
2017-10-26

Reciprocating pump

#117
20170292485
2017-10-12

High pressure pump for complex injection engines

#118
20170291586
2017-10-12

Piston pump having a stepped piston

#119
20170276130
2017-09-28

Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism

#120
20170276125
2017-09-28

Fuel pump

#121
20170260947
2017-09-14

Reciprocating pump

#122
20170254237
2017-09-07

Systems and methods for reducing the oil volume and windage in fuel pumps

#123
20170211558
2017-07-27

High-pressure pump control unit

#124
20170204824
2017-07-20

Roller Tappet Device and Method for Producing a Roller Tappet Device

#125
20170198690
2017-07-13

Piston rod having cap recess

#126
20170184064
2017-06-29

Fuel pump

#127
20170167474
2017-06-15

AXIAL PUMP AND HYDRAULIC DRIVE SYSTEM

#128
20170159628
2017-06-08

High-pressure fuel pump and pressure control device

#129
20170089311
2017-03-30

Single piston pump with reduced piston side loads

#130
20170089291
2017-03-30

High pressure pump controller

#131
20170082094
2017-03-23

Pump

#132
20170074253
2017-03-16

Fuel unit pump and internal combustion engine including a fuel unit pump

#133
20170074221
2017-03-16

Fuel pump mounting structure for engine

#134
20170058879
2017-03-02

Positive displacement pump

#135
20170030314
2017-02-02

High pressure pump having lubricating and cooling structure

#136
20170015159
2017-01-19

Tire inflation system

#137
20170002779
2017-01-05

High pressure pump

#138
20160377065
2016-12-29

Duplex Metering Pump Having a Single Liquid End

#139
20160377042
2016-12-29

High pressure pump

#140
20160369791
2016-12-22

HIGH PRESSURE PUMP

#141
20160369789
2016-12-22

Occlusion detection techniques for a fluid infusion device having a rotary pump mechanism and sensor contact elements

#142
20160367750
2016-12-22

Occlusion detection techniques for a fluid infusion device having a rotary pump mechanism and a force sensor

#143
20160363202
2016-12-15

Variable displacement linkage mechanism

#144
20160341194
2016-11-24

High pressure fuel pump

#145
20160333799
2016-11-17

Method and system for operating a cam-driven pump

#146
20160324388
2016-11-10

Variable flow rate mechanical pump assembly

#147
20160319813
2016-11-03

Two piece pump rod

#148
20160296930
2016-10-13

Assay fluid delivery system

#149
20160281706
2016-09-29

Removable shim clip for adjustable piston pump

#150
20160273532
2016-09-22

A COMPONENT WHICH CONDUCTS A HIGH-PRESSURE MEDIUM

#151
20160245248
2016-08-25

Fuel pump

#152
20160222960
2016-08-04

High-pressure fuel pump

#153
20160177930
2016-06-23

Self-calibrating return spring pump, in particular self-calibrating return spring dosing pump

#154
20160161059
2016-06-09

Chemical injection system

#155
20160160986
2016-06-09

Mechanical system forming a cam follower or a rocker arm, injection pump or valve actuator comprising such a mechanical system and method for manufacturing such a mechanical system

#156
20160160854
2016-06-09

ROTARY-WAVE SUB-ASSEMBLY FOR PUMPING A FLUID AND ROTARY-WAVE PUMPING DEVICE

#157
20160160416
2016-06-09

Compressed air supplying device of a sewing machine

#158
20160153413
2016-06-02

High-pressure pump

#159
20160108875
2016-04-21

High pressure pump for a fuel injection system

#160
20160091075
2016-03-31

Mechanical system forming a cam follower or a rocker arm

#161
20160084209
2016-03-24

Pump control apparatus and method

#162
20160040662
2016-02-11

System and method for improved flow uniformity in a peristaltic pump mechanism

#163
20160032878
2016-02-04

Mechanical fuel pump deactivation

#164
20160000999
2016-01-07

Internal cam metering pump

#165
20150345447
2015-12-03

Plug-in pump

#166
20150337939
2015-11-26

Cam follower with anti-rotation device

#167
20150337827
2015-11-26

Four-compression-chamber diaphragm pump with diaphragm positioning structures to reduce vibration

#168
20150300334
2015-10-22

ROTARY DRIVE LINEAR ROD DISPLACEMENT PUMP

#169
20150292493
2015-10-15

FLUID-PRESSURE PUMP

#170
20150231656
2015-08-20

Pump suction/expulsion for liquids and gases versatile

#171
20150219092
2015-08-06

LIQUID TRANSPORT METHOD AND LIQUID TRANSPORT APPARATUS

#172
20150211454
2015-07-30

HIGH PRESSURE FUEL PUMP

#173
20150144655
2015-05-28

Supplying device of fixed colorants volume for a colorant dispenser

#174
20150118066
2015-04-30

LOAD REDUCTION

#175
20150093265
2015-04-02

DRIVESHAFT LUBRICATION

#176
20150071802
2015-03-12

Device for dosing a fill product into a container to be filled

#177
20150059520
2015-03-05

Transmission element

#178
20150053044
2015-02-26

Camshaft for HP common rail oil pump, manufacturing method thereof and interference assembly device thereof

#179
20150030476
2015-01-29

Pump unit driven by an electric motor

#180
20150017041
2015-01-15

Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism

#181
20140331975
2014-11-13

System and method for operating a direct injection fuel pump

#182
20140260969
2014-09-18

Pump with water management

#183
20140255227
2014-09-11

PLUNGER ASSEMBLY FOR A HIGH-PRESSURE FUEL PUMP, AND HIGH-PRESSURE FUEL PUMP

#184
20140219824
2014-08-07

PUMP SYSTEM AND METHOD THEREOF

#185
20140205474
2014-07-24

Hydrogen storage container

#186
20140186195
2014-07-03

Tire inflation system

#187
20140150643
2014-06-05

Cam engine

#188
20140147291
2014-05-29

RECIPROCATING PUMP ASSEMBLY AND METHOD THEREOF

#189
20140093402
2014-04-03

Passive pressure regulation mechanism

#190
20140086773
2014-03-27

Hydraulic Radial-piston Pump for Wind Turbines

#191
20140064989
2014-03-06

High-pressure fuel pump device

#192
20140060651
2014-03-06

Chemical injection system

#193
20140044563
2014-02-13

Diaphragm pumps

#194
20140041622
2014-02-13

XY separate crank mechanism and driving device provided therewith

#195
20140034018
2014-02-06

Drain for fuel pump

#196
20140010680
2014-01-09

Energy extraction system

#197
20140003969
2014-01-02

Energy extraction system

#198
20140000756
2014-01-02

Passive pressure regulation mechanism

#199
20140000755
2014-01-02

Tire inflation system

#200
20130343923
2013-12-26

Variable radial fluid devices in series

#201
20130343915
2013-12-26

Variable radial fluid device with counteracting cams

#202
20130251553
2013-09-26

Tire inflation system

#203
20130251552
2013-09-26

Energy extraction system

#204
20130199465
2013-08-08

Engine usable as a power source or pump

#205
20130152779
2013-06-20

Shaft arrangement for an axial piston pump assembly

#206
20130149172
2013-06-13

System and method for improved flow uniformity in a peristaltic pump mechanism

#207
20130061745
2013-03-14

Removable shim clip for adjustable piston pump

#208
20130061744
2013-03-14

Offset cam for piston pump

#209
20130017108
2013-01-17

High pressure pump

#210
20130017099
2013-01-17

Micropump

#211
20130008843
2013-01-10

Dialysis fluid pump, and hemodialysis apparatus having same

#212
20120325736
2012-12-27

DIALYSIS FLUID PUMP, AND HEMODIALYSIS APPARATUS HAVING SAME

#213
20120312158
2012-12-13

Ring cam and fluid-working machine including ring cam

#214
20120312105
2012-12-13

MECHANISM FOR TRANSFORMING CIRCULAR MOTION INTO TRANSLATIONAL MOTION TO DRIVE THE PISTON OF A CNG COMPRESSOR

#215
20120308413
2012-12-06

Toothed wheel and pump aggregate with such a toothed wheel

#216
20120260795
2012-10-18

RING CAM AND FLUID-WORKING MACHINE INCLUDING RING CAM

#217
20120260765
2012-10-18

RING CAM AND FLUID-WORKING MACHINE INCLUDING RING CAM

#218
20120244018
2012-09-27

Pumping devices, systems including multiple pistons and methods for use with medical fluids

#219
20120234277
2012-09-20

Roller tappet

#220
20120177505
2012-07-12

Variable stroke control structure for high pressure fuel pump

#221
20120168305
2012-07-05

Reader devices for manipulating multi-fluidic cartridges for sample analysis

#222
20120152404
2012-06-21

Delivery for deliver fluid products and method of using

#223
20120145263
2012-06-14

Device and method to deliver fluid products

#224
20120095401
2012-04-19

LIQUID SUPPLY PUMP AND MEDICAL INSTRUMENT

#225
20120031223
2012-02-09

Cam follower

#226
20110286867
2011-11-24

Mud pump

#227
20110198887
2011-08-18

DOUBLE-ACTING PISTON COMPRESSOR OF WHICH THE PISTON IS GUIDED BY A ROLLER AND DRIVEN BY A PINION AND RACKS

#228
20110192277
2011-08-11

Cam mechanism and liquid sending pump having same

#229
20110171045
2011-07-14

PRESSURE WASHER PUMP

#230
20110100319
2011-05-05

Lubrication system for fuel pump of GDI engine

#231
20110079036
2011-04-07

Refrigerant recovery machine with improved cam wheel assembly

#232
20100292787
2010-11-18

Scotch-yoke mechanism for redundant actuation applications

#233
20100236522
2010-09-23

Rotary Cylindrical Device With Coupled Pairs of Pistons

#234
20100229812
2010-09-16

Tappet

#235
20100178179
2010-07-15

Multiplex reciprocating pump

#236
20100170480
2010-07-08

HIGH-PRESSURE FUEL PUMP WITH ROLLER TAPPET

#237
20100158726
2010-06-24

Plunger Pump

#238
20100150747
2010-06-17

Pump having pulsation-reducing engagement surface

#239
20100129246
2010-05-27

FLUID PUMP ASSEMBLY

#240
20100126460
2010-05-27

Lubrication apparatus of fuel pump driven by fuel pump drive cam

#241
20100089047
2010-04-15

ACTUATOR, UNCLAMP APPARATUS HAVING ACTUATOR, AND MACHINING APPARATUS

#242
20100040496
2010-02-18

Device for driving a piston pump

#243
20100040486
2010-02-18

High pressure pump

#244
20090311117
2009-12-17

PUMP DEVICE, FOR INSTANCE FOR FRONT AND REAR WHEEL DRIVEN MOTORCYCLE

#245
20090297374
2009-12-03

Pump with stabilization component

#246
20090272365
2009-11-05

Cam lobe profile for driving a mechanical fuel pump

#247
20090246045
2009-10-01

Device for Concentrating a Liquid, and Differential Piston Pump

#248
20090164093
2009-06-25

High pressure pump actuation in a vehicle

#249
20090123309
2009-05-14

Micropump

#250
20090092511
2009-04-09

HEART-SHAPED CAM CONSTANT FLOW PUMP

#251
20090092508
2009-04-09

Electric thrust piston pump device

#252
20090068034
2009-03-12

PUMPING SYSTEM WITH PRECISE RATIO OUTPUT

#253
20090047146
2009-02-19

Eccentric Radial Piston Pump and Eccentric Radial Piston Motor

#254
20080219861
2008-09-11

Cam driven piston compressor

#255
20080213115
2008-09-04

High-pressure gas compressor and method of operating a high-pressure gas compressor

#256
20080121216
2008-05-29

Opposed pumping load high pressure common rail fuel pump

#257
20080115770
2008-05-22

Pump with torque reversal avoidance feature and engine system using same

#258
20080006237
2008-01-10

Rotary cylindrical power device

#259
20080003110
2008-01-03

Pressure generation device

#260
20070169619
2007-07-26

Piston pump with cam follower arrangement

#261
20070140871
2007-06-21

Cams and cam followers

#262
20070128056
2007-06-07

Highly efficient durable fluid pump and method

#263
20070116585
2007-05-24

Cam driven piston compressor apparatus

#264
20070020125
2007-01-25

Motor with eccentric part and pump device using the same

#265
20060201323
2006-09-14

Multiple-stroke hydrostatic axial piston machine

#266
20050244276
2005-11-03

Pump drive

#267
20050076888
2005-04-14

Safety fuel injection pump

#268
20050002809
2005-01-06

Plunger pump

#269
19069120
2025-11-11

Piston pump and method of manufacturing the same

#270
18782689
2025-10-07

Water pump structure and oral irrigator

#271
18658876
2025-04-08

Piston pump and method of manufacturing the same

#272
15185207
2018-10-30

Impulse pump

#273
15149067
2020-09-01

High efficiency, high pressure pump suitable for remote installations and solar power sources