ClassID:

142631

F04B1/2035 - 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 having rotary cylinder block; Details or component parts Cylinder barrels

Recent Application in this class:
#1
20260071606
2026-03-12

AXIAL PISTON DEVICE

#2
20250361849
2025-11-27

A HYDRAULIC DEVICE

#3
20250116262
2025-04-10

INTEGRATED ELECTRO-HYDRAULIC UNIT

#4
20250067255
2025-02-27

INSERT AND METHOD FOR MANUFACTURING FLUID PUMP

#5
20250027564
2025-01-23

PISTON RING

#6
20250012262
2025-01-09

INTEGRATED ELECTRO-HYDRAULIC UNIT

#7
20240240714
2024-07-18

PISTON RING

#8
20240218871
2024-07-04

HYDRAULIC DEVICE

#9
20240117798
2024-04-11

HYDRAULIC PISTON PUMP AND METHOD FOR AFFECTING THE SOUND CHARACTER OF THE PISTON PUMP

#10
20230279847
2023-09-07

Hub Feed Oil System

#11
20230228262
2023-07-20

Axial Piston Device

#12
20220275792
2022-09-01

Hydraulic pump motor

#13
20220235749
2022-07-28

Pressure exchanger

#14
20220228580
2022-07-21

VALVE PLATE FOR FLUID PUMP

#15
20210277891
2021-09-09

Axial piston-type hydraulic rotary machine

#16
20210254608
2021-08-19

Rotary axial piston machine with hydrostatic pressing device seal arrangement

#17
20210123420
2021-04-29

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

#18
20210108623
2021-04-15

BENT-AXIS AXIAL-PISTON HYDRAULIC MACHINE

#19
20200272879
2020-08-27

Axial piston machine having integral counting perforation

#20
20200141395
2020-05-07

Axial piston machine and method of extending neutral position for axial piston machine

#21
20190390663
2019-12-26

Hydraulic pump with inlet baffle

#22
20190316572
2019-10-17

Hydrostatic axial piston machine

#23
20190309738
2019-10-10

Hydrostatic axial piston machine

#24
20190277269
2019-09-12

Hydraulic actuator

#25
20190264564
2019-08-29

Cylinder block and swash plate type liquid-pressure rotating apparatus including same

#26
20190211811
2019-07-11

Hydraulic device

#27
20190176214
2019-06-13

Method of manufacturing a drum of an axial piston machine

#28
20190003466
2019-01-03

Hydrostatic positive-displacement machine piston for the hydrostatic positive-displacement machine, and cylinder drum for the hydrostatic positive-displacement machine

#29
20180340501
2018-11-29

VARIABLE DISPLACEMENT FUEL PUMP WITH POSITION SENSOR

#30
20180328350
2018-11-15

Variable displacement pump

#31
20180299912
2018-10-18

Mixing valve arrangement for a hydraulic system, including an oil cooling system and compressor system

#32
20180252209
2018-09-06

Connector plate, hydraulic machine having a connector plate, and hydrostatic unit having a hydraulic machine and a hydraulic attachment part

#33
20180216731
2018-08-02

Cradle-mounted swash with trunnion-mounted positioning arms

#34
20180163708
2018-06-14

Hydrostatic axial piston machine

#35
20180156207
2018-06-07

Axial piston hydraulic pump

#36
20170343107
2017-11-30

Cylinder drum of a hydrostatic axial piston machine having a wear-resistant layer

#37
20170335820
2017-11-23

HYDRAULIC MACHINE WITH IMPROVED OSCILLATING AXIAL CYLINDERS

#38
20170306937
2017-10-26

Axial hydraulic piston pump

#39
20170298912
2017-10-19

Hydrostatic pump barrel with sloped kidney ports

#40
20170184009
2017-06-29

Cooling and lubricating system for a piston sealing device

#41
20170175721
2017-06-22

Fluid pressure pump and fluid pressure system

#42
20170159640
2017-06-08

Hydrostatic axial piston machine

#43
20170159637
2017-06-08

Hydrostatic Axial Piston Machine with Control Disk

#44
20170130693
2017-05-11

Distribution device for a hydraulic machine and a hydraulic machine fitted with such a device

#45
20170074235
2017-03-16

HYDRAULIC ROTATING MACHINE

#46
20170016431
2017-01-19

Positive displacement machines and methods of increasing load-carrying capacities thereof

#47
20160348654
2016-12-01

Hydraulic pump and detachable servo unit

#48
20160327015
2016-11-10

Hydraulic pump/motor

#49
20160281505
2016-09-29

Banded ceramic valve and/or port plate

#50
20160273525
2016-09-22

HYDRAULIC AXIAL PISTON PUMP HAVING A FLOATING ROTATORY DRUM

#51
20160237993
2016-08-18

Axial piston pump having a swash-plate type construction

#52
20160230788
2016-08-11

Hydraulic machine

#53
20160167088
2016-06-16

Method for coating a pump component

#54
20160153431
2016-06-02

Hydraulic pump and piston for such a hydraulic pump

#55
20160108901
2016-04-21

Axial piston pump

#56
20160084084
2016-03-24

Hydraulic axial-piston device with features to enhance efficiency and power-density

#57
20160076525
2016-03-17

AXIAL PISTON PUMP

#58
20150260153
2015-09-17

Opposed swash plate type fluid pressure rotating machine

#59
20150240637
2015-08-27

Fluid pressure rotating machine

#60
20150167650
2015-06-18

Hydraulic rotating equipment, and working machine provided with this hydraulic rotating equipment

#61
20150128796
2015-05-14

Hydrostatic axial piston machine

#62
20150078923
2015-03-19

Hydrostatic axial piston machine

#63
20150075364
2015-03-19

Hydrostatic axial piston machine employing a bent-axis construction with a constant velocity joint for driving the cylinder drum

#64
20150007556
2015-01-08

Hydraulic motor

#65
20150000512
2015-01-01

Hydraulic motor system

#66
20140360351
2014-12-11

Fluid pressure rotary machine

#67
20140352525
2014-12-04

Axial piston machine having a basket

#68
20140334948
2014-11-13

Hydrostatic axial piston machine having a cylinder barrel with a working piston which is mounted obliquely with respect to its axial direction and with a planar control plate

#69
20140056730
2014-02-27

Hydraulic piston pump with reduced restriction barrel passage

#70
20130333369
2013-12-19

Hydrostatic piston engine having a brake device

#71
20130199362
2013-08-08

BENT AXIS VARIABLE DELIVERY INLINE DRIVE AXIAL PISTON PUMP AND/OR MOTOR

#72
20130052041
2013-02-28

Piston pump with cam actuated valves

#73
20120275928
2012-11-01

Hydraulic piston pump with reduced restriction barrel passage

#74
20120244023
2012-09-27

Hydraulic pump assembly

#75
20120144996
2012-06-14

Axial piston pump with pistons having metallic sealing rings

#76
20120000354
2012-01-05

Hydrostatic axial piston machine

#77
20110138996
2011-06-16

AXIAL PISTON MACHINE

#78
20110056369
2011-03-10

Axial sliding bearing and method of reducing power losses thereof

#79
20110030644
2011-02-10

Flow-optimized cylinder drum for hydrostatic piston engines

#80
20100287926
2010-11-18

Hydraulic pump/motor and fan driving device

#81
20100199837
2010-08-12

Variable length bent-axis pump/motor

#82
20100178177
2010-07-15

Hydraulic rotary machine

#83
20090095148
2009-04-16

Hydrostatic axial piston machine

#84
20090013863
2009-01-15

Bent axis pump

#85
20080250920
2008-10-16

Hydrostatic Piston Machine

#86
20080236384
2008-10-02

Axial piston machine

#87
20080175725
2008-07-24

Rotary piston pump

#88
20070101857
2007-05-10

Hydrostatic piston machine with two hydraulic circuits

#89
20070074626
2007-04-05

Distribution system for a hydrostatic piston machine

#90
20070039157
2007-02-22

Split ceramic bore liner, rotor body having a split ceramic bore liner and method of lining a rotor bore with a split ceramic bore liner

#91
20060245938
2006-11-02

Circumferential piston compressor/pump/engine (CPC/CPP/CPE); circumferential piston machines

#92
20060201323
2006-09-14

Multiple-stroke hydrostatic axial piston machine

#93
20060120882
2006-06-08

Motor or pump assemblies

#94
20060120881
2006-06-08

Axial piston machine

#95
20060005698
2006-01-12

Hydraulic device driving a rotating receiver

#96
20050226748
2005-10-13

Hydraulic machine having pressure equalization

#97
20050193888
2005-09-08

Efficient pump/motor with reduced energy loss

#98
20050172798
2005-08-11

Rotating group of a hydraulic machine

#99
20050063834
2005-03-24

Axial-piston machine of the swashplate or oblique-axis type of construction

#100
20050053478
2005-03-10

Axial piston device

#101
20050019171
2005-01-27

Hydraulic device

#102
15784880
2020-02-11

Transmission assembly

#103
14640616
2017-10-17

Transmission assembly