ClassID:

142570

F04B1/0413 - 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 Cams

Sub-classes:
Recent Application in this class:
#1
20250382861
2025-12-18

HYDRAULIC FRACTURING PUMPS TO ENHANCE FLOW OF FRACTURING FLUID INTO WELLHEADS AND RELATED METHODS

#2
20250250971
2025-08-07

AXIAL PUMP ASSEMBLIES

#3
20240229781
2024-07-11

Piston Compressor

#4
20240044235
2024-02-08

HYDRAULIC FRACTURING PUMPS TO ENHANCE FLOW OF FRACTURING FLUID INTO WELLHEADS AND RELATED METHODS

#5
20240026906
2024-01-25

VARIABLE OUTPUT, HYDRAULIC DRIVE SYSTEM

#6
20230392487
2023-12-07

HYDRAULIC FRACTURING PUMPS TO ENHANCE FLOW OF FRACTURING FLUID INTO WELLHEADS AND RELATED METHODS

#7
20230358217
2023-11-09

PARTIAL STROKE FLUIDIC PUMP-MOTOR WITH HIGH MECHANICAL EFFICIENCY

#8
20230313786
2023-10-05

Axial pump assemblies

#9
20230235729
2023-07-27

COMPACT OPPOSED PUMP

#10
20230082868
2023-03-16

Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods

#11
20230018875
2023-01-19

Supply pump

#12
20220412201
2022-12-29

Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods

#13
20220372857
2022-11-24

Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods

#14
20220349394
2022-11-03

RADIAL RECIPROCATING ENGINE HAVING A BALL PISTON

#15
20220349393
2022-11-03

Axial pump assemblies

#16
20220119140
2022-04-21

Pump comprising balls for displacement of fluid

#17
20220018366
2022-01-20

Variable output, hydraulic drive system

#18
20210017968
2021-01-21

Axial pump assemblies with reciprocating element having ramped cam surfaces

#19
20200277922
2020-09-03

Fuel injection pump

#20
20200200133
2020-06-25

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

#21
20200080541
2020-03-12

Method and system for harnessing wind energy using a tethered airfoil

#22
20200055351
2020-02-20

Compressor assembly comprising a beaded cylindrical cam

#23
20190162141
2019-05-30

Roller drive mechanism for GDI pump

#24
20190154016
2019-05-23

Fluid pump with cam geometry to reduce pulsations

#25
20180306172
2018-10-25

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

#26
20180274647
2018-09-27

Cam follower roller device

#27
20180202421
2018-07-19

RADIAL PISTON PUMPS AND MOTORS

#28
20180172323
2018-06-21

Caloric heat pump system

#29
20180171949
2018-06-21

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

#30
20180163710
2018-06-14

Cam mechanism for the implementation of a variable stroke

#31
20180058728
2018-03-01

Pump for a heat pump system

#32
20180023852
2018-01-25

Caloric heat pump system

#33
20180010602
2018-01-11

High-pressure pump and production method thereof

#34
20170342969
2017-11-30

Pump, in particular a high-pressure fuel pump

#35
20170276125
2017-09-28

Fuel pump

#36
20170198690
2017-07-13

Piston rod having cap recess

#37
20170184064
2017-06-29

Fuel pump

#38
20170175591
2017-06-22

Cam follower roller device

#39
20170167473
2017-06-15

Camshaft thrust control secured by drive gear

#40
20170082094
2017-03-23

Pump

#41
20170074253
2017-03-16

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

#42
20160377042
2016-12-29

High pressure pump

#43
20160305421
2016-10-20

Reciprocating plunger pump and its engine body, the slider crank mechanism and the slide block, the bearing seat, the crankcase upper cover and the plunger seat

#44
20160245278
2016-08-25

Reciprocating compressor with vapor injection system

#45
20160245248
2016-08-25

Fuel pump

#46
20150361976
2015-12-17

Output shaft lubricating structure of liquid pressurizing pump

#47
20150308419
2015-10-29

Vehicle

#48
20150300476
2015-10-22

Cam follower roller device, notably for a fuel injection pump

#49
20150118066
2015-04-30

LOAD REDUCTION

#50
20150053044
2015-02-26

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

#51
20150004012
2015-01-01

Lubrication apparatus of high pressure pump for common rail system

#52
20140369873
2014-12-18

Compressor for pressurized fluid output

#53
20140331975
2014-11-13

System and method for operating a direct injection fuel pump

#54
20140311463
2014-10-23

Electric supercharging device

#55
20140216417
2014-08-07

Fuel pump

#56
20140170003
2014-06-19

Reciprocating compressor with vapor injection system

#57
20140034018
2014-02-06

Drain for fuel pump

#58
20130206112
2013-08-15

Fuel supply pump

#59
20130192563
2013-08-01

Fuel supply pump

#60
20130152779
2013-06-20

Shaft arrangement for an axial piston pump assembly

#61
20130149171
2013-06-13

Fluid-working machine with multi-lobe ring cam

#62
20130098239
2013-04-25

Radial hydraulic pump with a variable eccentricity and delivery

#63
20130084198
2013-04-04

PUMP WITH CENTRALIZED SPRING FORCES

#64
20130061744
2013-03-14

Offset cam for piston pump

#65
20130047836
2013-02-28

Multi-speed hydraulic pump

#66
20130022482
2013-01-24

NON-CIRCULAR BEARING AND A METHOD FOR ROTATING A CAM

#67
20130017108
2013-01-17

High pressure pump

#68
20120312158
2012-12-13

Ring cam and fluid-working machine including ring cam

#69
20120297972
2012-11-29

Subassembly forming a hydrobase for hydraulic motors, and assembly method

#70
20120291747
2012-11-22

INTERNAL COMBUSTION ENGINE FUEL SUPPLY SYSTEM

#71
20120260795
2012-10-18

RING CAM AND FLUID-WORKING MACHINE INCLUDING RING CAM

#72
20120260765
2012-10-18

RING CAM AND FLUID-WORKING MACHINE INCLUDING RING CAM

#73
20120031223
2012-02-09

Cam follower

#74
20110280754
2011-11-17

CAM-TYPE PUMP STRUCTURE FOR A REFRIGERANT RECYCLING MACHINE

#75
20110274573
2011-11-10

Half-sleeved and sleeveless plastic piston pumps

#76
20110220065
2011-09-15

Common Rail High Pressure Pump

#77
20110139125
2011-06-16

Piston pump

#78
20100040486
2010-02-18

High pressure pump

#79
20090311117
2009-12-17

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

#80
20090184570
2009-07-23

DRIVE UNIT FOR HYDRAULIC PISTON PUMPS WITH AN ECCENTRIC ELEMENT OF A VEHICLE BRAKE SYSTEM

#81
20090151704
2009-06-18

Fuel pump set

#82
20090123304
2009-05-14

Drive device

#83
20090120280
2009-05-14

Fuel injection pump and method for assembling the same

#84
20090107134
2009-04-30

PUMP, IN PARTICULAR FOR A HYDRAULIC UNIT

#85
20090068034
2009-03-12

PUMPING SYSTEM WITH PRECISE RATIO OUTPUT

#86
20090047146
2009-02-19

Eccentric Radial Piston Pump and Eccentric Radial Piston Motor

#87
20080295807
2008-12-04

High pressure pump, in particular for a fuel injection system of an internal combustion engine

#88
20080230036
2008-09-25

Roller actuator for a mechanical fuel pump

#89
20080175731
2008-07-24

Transfer pump for injection of fuel at high pressure

#90
20080121216
2008-05-29

Opposed pumping load high pressure common rail fuel pump

#91
20080110331
2008-05-15

CAM RING FOR AN INJECTION PUMP

#92
20080003110
2008-01-03

Pressure generation device

#93
20070289442
2007-12-20

Half-sleeved and sleeveless plastic piston pumps

#94
20070199391
2007-08-30

Apparatuses And Methods For Pumping Fluids

#95
20070176484
2007-08-02

Horizontally opposed hydraulic piston pumps

#96
20070154326
2007-07-05

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

#97
20070140871
2007-06-21

Cams and cam followers

#98
20070098580
2007-05-03

Pump gear

#99
20070071621
2007-03-29

Plunger driving structure

#100
20070020125
2007-01-25

Motor with eccentric part and pump device using the same

#101
20060280620
2006-12-14

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

#102
20060275164
2006-12-07

High pressure pump

#103
20060254416
2006-11-16

Motor/pump unit, particularly for anti-skid vehicle brake systems

#104
20060245940
2006-11-02

Eccentric drive mechanism for volumetric pumps or motors

#105
20060239847
2006-10-26

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

#106
20060216157
2006-09-28

Radial piston pump for providing high pressure in fuel injection systems of internal combustion engines

#107
20060182640
2006-08-17

High pressure pump

#108
20060177327
2006-08-10

Pump assembly for a vehicle braking system with eccentric drive actuator

#109
20060127228
2006-06-15

High pressure open discharge pump system

#110
20060093490
2006-05-04

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

#111
20060083634
2006-04-20

Pressure washer having oilless high pressure pump

#112
20060062677
2006-03-23

High pressure pump

#113
20050129532
2005-06-16

Fuel supply pump having inner lubricating groove

#114
20050079065
2005-04-14

Radial piston pump

#115
20050076888
2005-04-14

Safety fuel injection pump

#116
20050063835
2005-03-24

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

#117
20050002809
2005-01-06

Plunger pump