ClassID:

142932

F04B35/002 - CPC Classification

Classification description:

Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by internal combustion engines

Recent Application in this class:
#1
20260043519
2026-02-12

METHANE AND EMISSIONS REDUCTION SYSTEM

#2
20250320972
2025-10-16

COMPRESSOR SYSTEM FOR EVACUATING UTILITY PIPE

#3
20240310003
2024-09-19

SELF-ENERGIZED COMPRESSION STATION FOR A GAS PIPELINE

#4
20240254979
2024-08-01

MULTI-PIECE FLUID END

#5
20240068620
2024-02-29

METHANE AND EMISSIONS REDUCTION SYSTEM

#6
20240068473
2024-02-29

METHODS AND SYSTEMS FOR AIR COMPRESSOR AND ENGINE DRIVEN CONTROL

#7
20230279852
2023-09-07

Gas lift compressor system and method for supplying compressed gas to multiple wells

#8
20230250752
2023-08-10

METHOD AND SYSTEM FOR COMPRESSED AIR SUPPLY

#9
20230193813
2023-06-22

Method and system for an on board compressor

#10
20220170596
2022-06-02

Methane and emissions reduction system

#11
20220163022
2022-05-26

Mobile thick matter pump

#12
20220090595
2022-03-24

Gas lift compressor system and method for supplying compressed gas to multiple wells

#13
20220010761
2022-01-13

Drawdown compressor assembly

#14
20220001723
2022-01-06

Compressor systems and methods for use by vehicle heating, ventilating, and air conditioning systems

#15
20210348604
2021-11-11

Gas lift compressor system and method for supplying compressed gas to multiple wells

#16
20210332745
2021-10-28

AIR COMPRESSOR

#17
20210262524
2021-08-26

Method of mounting a bearing to an air compressor, and air compressor having a bearing mounted by the method

#18
20210148363
2021-05-20

Methods and systems for air compressor and engine driven control

#19
20210095650
2021-04-01

Multi-Piece Fluid End

#20
20210054837
2021-02-25

Methane and emissions reduction system

#21
20210039454
2021-02-11

Electrified air system for use with central tire inflation system

#22
20210039453
2021-02-11

Electrified air system for use with central tire inflation system

#23
20210039452
2021-02-11

Electrified air system for use with central tire inflation system

#24
20210025377
2021-01-28

Valve unit for pumps

#25
20210003121
2021-01-07

PROCESS FOR OPERATING A SINGLE-STROKE COMBUSTION ENGINE

#26
20200392951
2020-12-17

Cooling block for multi-cylinder air compressor

#27
20200284233
2020-09-10

Hybrid electric hydraulic motor system for vehicles

#28
20200284148
2020-09-10

POSITIVE DISPLACEMENT HEAT MACHINES WITH SCAVENGING

#29
20200277946
2020-09-03

Dual engine-compressor system

#30
20200232450
2020-07-23

Multi-Piece Fluid End

#31
20200191131
2020-06-18

Flexible supply gas routing for gas compressors

#32
20200173391
2020-06-04

Fuel pump and inlet valve assembly thereof

#33
20200173340
2020-06-04

System and method for a variable speed cooling fan on a skid mounted compressor

#34
20200040880
2020-02-06

Dual engine-compressor system

#35
20190271304
2019-09-05

Method and system for gas compressor control

#36
20190257552
2019-08-22

Gas compression cooling system

#37
20190211815
2019-07-11

BYPASS SYSTEM FOR REGULATING LUBRICATION OF RECIPROCATING MACHINES

#38
20190194909
2019-06-27

Construction machine

#39
20190170192
2019-06-06

Method of mounting a bearing to an air compressor, and air compressor having a bearing mounted by the method

#40
20190170129
2019-06-06

Service pack comprising an engine driving a pneumatic air compression system with a flow control system to adjust a position of a proportional control valve, regulate a variable pressure acting on a flow control member, and regulate a power demand placed on the engine

#41
20190145412
2019-05-16

Methods and systems for air compressor and engine driven control

#42
20190136842
2019-05-09

Multi-Piece Fluid End

#43
20190071190
2019-03-07

Variable pneumatic output with constant electrical output driven by a single engine

#44
20190055932
2019-02-21

Thermodynamic boiler with thermal compressor

#45
20190040855
2019-02-07

Compressor having an energy saving apparatus, and method for relieving the compressor

#46
20180372087
2018-12-27

Piston Compressor Having a Venting Device

#47
20180371981
2018-12-27

System and method involving a variable speed cooling fan used with a compressor and an internal combustion engine

#48
20180119685
2018-05-03

Device and method for controlling compressor of vehicles to accumulate cold air energy in an evaporator during a speed-reducing condition and using the latter in a release condition

#49
20180058434
2018-03-01

Air compressor

#50
20180002037
2018-01-04

INTEGRATED MOBILE GROUND SUPPORT SYSTEM FOR SERVICING AIRCRAFT

#51
20170254320
2017-09-07

Engine compressor unit

#52
20170248137
2017-08-31

System and method for emissions testing a compressor, turbine, or engine

#53
20170248130
2017-08-31

DUAL SERVICE COMPRESSOR SYSTEM FOR CONDITIONING HYDROCARBON GAS

#54
20170226945
2017-08-10

Regeneration method for exhaust-gas aftertreatment device in engine-driven compressor, and engine-driven compressor provided with said aftertreatment device

#55
20170211428
2017-07-27

Air compressor having supplemental power source

#56
20170167478
2017-06-15

Reciprocating integral linear engine compressor

#57
20170159872
2017-06-08

Skeleton base for a compressor system

#58
20170037843
2017-02-09

Autolift-resistant piston assembly for an unloader valve of an air compressor

#59
20170016437
2017-01-19

Compressor with crankshaft and insert

#60
20160348661
2016-12-01

A COMPRESSOR TRAIN WITH A STIRLING ENGINE

#61
20160272046
2016-09-22

Device and method for controlling compressor of vehicles

#62
20160264119
2016-09-15

Management of the differential pressure thresholds of a vacuum pump connected to the braking system of a motor vehicle

#63
20160230748
2016-08-11

MECHANICAL LEVER-DRIVER FOR PRESSURE PUMP

#64
20160115960
2016-04-28

Coolant pump with plastic bonded magnet

#65
20160090973
2016-03-31

Air compressor

#66
20160084244
2016-03-24

Negative pressure pump and cylinder head cover

#67
20150247304
2015-09-03

Implement system having hydraulic start assist

#68
20150239309
2015-08-27

Tire inflation apparatus

#69
20150037172
2015-02-05

Method of controlling vacuum pump for vehicle brake booster

#70
20140369853
2014-12-18

Control for engine driven compressor

#71
20140341754
2014-11-20

Vacuum Truck with Loading Pump

#72
20140338526
2014-11-20

Variable-volume head

#73
20140334949
2014-11-13

LABYRINTHINE RADIAL PISTON-HYDRAULIC VARIABLE WATERPUMP ACTUATION SYSTEM

#74
20140328703
2014-11-06

Internal combustion engine provided with a cooling pump that can be mechanically disconnected

#75
20140322044
2014-10-30

HYDRAULIC TRANSMISSION DEVICE SUITABLE FOR CONSTITUTING A COMPACT HYDRAULIC STARTER MOTOR

#76
20140318095
2014-10-30

Engine mounting system

#77
20140314588
2014-10-23

Fuel injection pump

#78
20140301872
2014-10-09

COMPRESSOR

#79
20140294622
2014-10-02

Vehicle comprising a mounted-implement coupling and mounted implement therefor

#80
20140271267
2014-09-18

CONTROLLABLE COOLANT PUMP HAVING A FLUIDIC ACTUATOR

#81
20140234124
2014-08-21

Drive train cooling arrangement and method for operating same

#82
20140212305
2014-07-31

Drive train of a vehicle

#83
20140212300
2014-07-31

Hydrostatic power unit as hydraulic starter of an internal combustion engine

#84
20140206494
2014-07-24

Compressor system and method for operating a compessor system

#85
20140170002
2014-06-19

FUEL PUMP

#86
20140079562
2014-03-20

Apparatus and method for generating air pressure in eco-friendly vehicle

#87
20140064992
2014-03-06

Proportional air flow delivery control for a compressor

#88
20140064986
2014-03-06

Motor drive system

#89
20130189118
2013-07-25

Torque allocating system for a variable displacement hydraulic system

#90
20130061419
2013-03-14

PROPANE VACUUM

#91
20130058801
2013-03-07

HYBRID COMPRESSOR FOR AN AIR-CONDITIONING CIRCUIT

#92
20130058795
2013-03-07

METHOD FOR DETERMINING THE POWER OF AN ELECTRIC MOTOR OF A HYBRID COMPRESSOR

#93
20120321488
2012-12-20

PORTABLE AIR COMPRESSOR

#94
20120124955
2012-05-24

Engine mounting system

#95
20120039728
2012-02-16

Compressor and clutch device

#96
20120000211
2012-01-05

Device and method for controlling compressor of vehicles based on acceleration condition of vehicle

#97
20120000210
2012-01-05

Device and method for controlling compressor of vehicles to accumulate cold air energy in an evaporator during a speed-reducing condition and using the latter in a release condition

#98
20110286858
2011-11-24

Water pump system and method

#99
20110243763
2011-10-06

Motor-driven compressor

#100
20110198887
2011-08-18

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

#101
20110135510
2011-06-09

Compressor system for supplying compressed air to a commercial vehicle, and method for operating the compressor system

#102
20110127103
2011-06-02

POWER STEERING PUMP DRIVE

#103
20110116944
2011-05-19

Integrated compressor and pump unit and vehicles equipped therewith

#104
20110020144
2011-01-27

VARIABLE-VOLUME HEAD

#105
20110020138
2011-01-27

Clutch control system and method for operating a clutch control system

#106
20100294614
2010-11-25

Hydraulic assembly for a force-operated setting unit

#107
20100282187
2010-11-11

ENGINE WITH TOP-MOUNTED TOOL

#108
20100242670
2010-09-30

Transfer case pump bracket

#109
20100158702
2010-06-24

AIR COMPRESSOR SYSTEM

#110
20090229545
2009-09-17

Crankshaft for integral gas compressor and internal combustion engine

#111
20090162218
2009-06-25

Combination Power Plant/Fluid Compressor for Service Vehicles

#112
20090133395
2009-05-28

Compressed air supply device for a utility vehicle

#113
20090133394
2009-05-28

Method for controlling or regulating the air pressure in a compressed air supply device

#114
20090127926
2009-05-21

Compressed air supply system for a utility vehicle

#115
20080288185
2008-11-20

Torque estimating device of compressor

#116
20080286128
2008-11-20

Combination of a Generator with an Air Compressor

#117
20080245637
2008-10-09

Drive through air compressor with cone clutch

#118
20080236521
2008-10-02

Internal combustion engine

#119
20080095644
2008-04-24

Mobile wear and tear resistant gas compressor

#120
20080044299
2008-02-21

Apparatus, system and method for loading and offlloading a bulk fluid tanker

#121
20070297920
2007-12-27

Transfer case pump bracket

#122
20070258834
2007-11-08

Compressed gas management system

#123
20070209615
2007-09-13

Monocylindrical hybrid two-cycle engine, compressor and pump, and method of operation

#124
20070079778
2007-04-12

Cylinder block for integral gas compressor and internal combustion engine

#125
20060239839
2006-10-26

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

#126
20060091752
2006-05-04

Electric motor and electric compressor

#127
20060078439
2006-04-13

Control device for an engine mounted on top of an air compressor

#128
20060067837
2006-03-30

Vehicle air conditioner in which shaft seal is protected

#129
20060039796
2006-02-23

Engine-powered air compressor with a controller for low oil condition

#130
20060019786
2006-01-26

Auxiliary machine driven by engine and motor and capable of starting engine

#131
20050226738
2005-10-13

Tree feller power management

#132
20050220634
2005-10-06

Air brake system characterization by self learning algorithm

#133
20050196298
2005-09-08

Gas compressor dual drive mechanism

#134
20050188713
2005-09-01

Fluid machine for gas compression refrigerating system

#135
20050124446
2005-06-09

Positioning structure for power transmission mechanism

#136
20050111997
2005-05-26

Integrated engine/compressor control for gas transmission compressors

#137
20050086968
2005-04-28

Integrated electrical generator/starter and air conditioning compressor device and system and method for controlling same

#138
20050074339
2005-04-07

Hybrid compressor device

#139
20050013704
2005-01-20

Cooling air inlet arrangement

#140
20050002802
2005-01-06

Variable displacement compressor

#141
16588472
2021-12-07

Gas lift compressor system and method for supplying compressed gas to multiple wells

#142
14284115
2017-03-14

Electric hydraulic motor system for vehicles

#143
14169624
2015-03-17

Lubrication of a hybrid propulsion system for a watercraft