ClassID:

142613

F04B1/128 - CPC Classification

Classification description:

Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis Driving means

Recent Application in this class:
#1
20260078746
2026-03-19

COOLING FOR AN ELECTRICALLY OPERATED DISPLACEMENT PUMP

#2
20250101967
2025-03-27

SYSTEM FOR DETECTING ABNORMALITY IN HYDRAULIC ROTATING EQUIPMENT

#3
20250101966
2025-03-27

INTEGRATED ELECTRO-HYDRAULIC UNIT

#4
20240401577
2024-12-05

Positive Displacement Pump

#5
20240337256
2024-10-10

ELECTRO-HYDRAULIC APPARATUS, AND VEHICLE COMPRISING ELECTRO-HYDRAULIC APPARATUS

#6
20240253770
2024-08-01

ELECTROHYDRAULIC PITCH SETTING WITH REVERSIBLE PUMP

#7
20240229783
2024-07-11

Balanced Pump-Axial Piston Pump

#8
20240183347
2024-06-06

COOLING FOR AN ELECTRICALLY OPERATED DISPLACEMENT PUMP

#9
20230400088
2023-12-14

DRIVE DEVICE FOR A HIGH PRESSURE CLEANING APPLIANCE

#10
20220213890
2022-07-07

Fracturing pump assembly

#11
20220176929
2022-06-09

Brake hydraulic pressure control apparatus

#12
20220042499
2022-02-10

Wobble plate pump drive with gear box

#13
20210246889
2021-08-12

Electrically driven power end apparatus and methods

#14
20210123420
2021-04-29

Rotary barrel pump having separate guiding means and centering means for the barrel

#15
20210079901
2021-03-18

Ultra-long stroke multi-cylinder reciprocating pump

#16
20210071528
2021-03-11

Hydrostatic piston machine unit

#17
20210048008
2021-02-18

Motor-hydraulic machine unit for attachment to a hydraulic assembly

#18
20200392812
2020-12-17

Electric/hydraulic safety valve

#19
20200362838
2020-11-19

ELECTRIC LINEAR-ACTUATOR PUMPING SYSTEM

#20
20200072201
2020-03-05

Reciprocating pumps having a pivoting arm

#21
20190316572
2019-10-17

Hydrostatic axial piston machine

#22
20190145390
2019-05-16

Hydraulic pump with speed and pressure compensation

#23
20190120215
2019-04-25

VARIABLE CONTROLLED RECIPROCATION DEVICE FOR FLUIDS

#24
20190113028
2019-04-18

Rotatable piston assembly

#25
20180163718
2018-06-14

Pump plunger for a linearly actuated pump

#26
20180135622
2018-05-17

Piston cartridge for piston pump

#27
20180066638
2018-03-08

High pressure pump

#28
20180058441
2018-03-01

High pressure fuel gas pump

#29
20170370274
2017-12-28

COOLANT PUMP WITH INTEGRATED CLOSED-LOOP CONTROL

#30
20170350386
2017-12-07

Pump assembly with electric starter

#31
20170260977
2017-09-14

POSITIVE DISPLACEMENT LACT PUMP METERING

#32
20170184089
2017-06-29

Rotary Hydraulic Pump with ESP Motor

#33
20170146008
2017-05-25

PUMP FOR SUPPLYING AN APPLICATION SYSTEM OF A LIQUID COVERING PRODUCT

#34
20170145991
2017-05-25

Vibratory drive with hydraulic pulse generator

#35
20170138355
2017-05-18

Method for manufacturing a spherical-cap-shaped recess in a drive shaft, drive shaft comprising the recess, and hydrostatic axial piston machine comprising the drive shaft

#36
20170074080
2017-03-16

Subterranean pump with pump cleaning mode

#37
20170030344
2017-02-02

End of stroke detection for plunger velocity correction

#38
20170030341
2017-02-02

MULTI-PLUNGER CRYOGENIC PUMP HAVING INTAKE MANIFOLD

#39
20160377068
2016-12-29

Hydraulic drive multi-element cryogenic pump

#40
20160348716
2016-12-01

Roller bearing and hydrostatic axial piston machine of swashplate design with a roller bearing

#41
20160244343
2016-08-25

Liquid treatment apparatus

#42
20160230748
2016-08-11

MECHANICAL LEVER-DRIVER FOR PRESSURE PUMP

#43
20160153443
2016-06-02

SENSOR ASSEMBLY FOR MEASURING DYNAMIC PRESSURE IN RECIPROCATING PUMPS

#44
20160146198
2016-05-26

Metering Pump

#45
20150377233
2015-12-31

Integrated lubrication pump

#46
20150322755
2015-11-12

Subterranean pump with pump cleaning mode

#47
20150292307
2015-10-15

Synchronized pump down control for a dual well unit with regenerative assist

#48
20150275891
2015-10-01

INTEGRATED MOTOR AND PUMP ASSEMBLY

#49
20150211502
2015-07-30

Swash plate type variable displacement compressor

#50
20150135943
2015-05-21

Cylinder block for a compressor, in particular swash plate compressor, and swash plate compressor

#51
20140134008
2014-05-15

PUMP HAVING PULSATION-REDUCING ENGAGEMENT SURFACE

#52
20140093411
2014-04-03

Wobble drive mechanism

#53
20140003971
2014-01-02

Hydrostatic machine, in particular axial piston machine

#54
20130316874
2013-11-28

Hydraulic apparatus comprising an improved assembly of a hydraulic machine and a clutch

#55
20120244018
2012-09-27

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

#56
20110113954
2011-05-19

Swash plate type liquid-pressure rotating device

#57
20110017060
2011-01-27

Hydraulic pump

#58
20100316510
2010-12-16

Reciprocating piston machine

#59
20100038959
2010-02-18

LINEAR DUAL CHANNEL HYDRAULIC CONTROL UNIT

#60
20090313785
2009-12-24

Vacuum cleaner with additional functions

#61
20090289008
2009-11-26

Liquid treatment apparatus

#62
20090263258
2009-10-22

VIBRATION DAMPENING MEDIA IN HYDRAULIC POWER UNITS

#63
20090127925
2009-05-21

Linear single channel hydraulic control unit

#64
20090007773
2009-01-08

Axial plunger pump or motor

#65
20080029344
2008-02-07

High-pressure cleaning appliance

#66
20070245891
2007-10-25

One piece slipper holddown device

#67
20070053780
2007-03-08

IMPROVED DESIGN OF INTEGRATED ELECTRO-HYDRAULIC POWER UNIT

#68
20060239839
2006-10-26

Universal hybrid engine, compressor and pump, and method of operation

#69
20060207247
2006-09-21

Actuator

#70
20060140787
2006-06-29

Hydraulic assembly

#71
20060051216
2006-03-09

High-efficiency, large angle, variable displacement hydraulic pump/motor

#72
20060008362
2006-01-12

Multi-piston pump/compressor