ClassID:

142629

F04B1/2021 - 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 characterised by the contact area between cylinder barrel and valve plate

Sub-classes:
Recent Application in this class:
#1
20250223951
2025-07-10

HYDRAULIC AXIAL PISTON UNIT AND METHOD FOR CONTROLLING OF A HYDRAULIC AXIAL PISTON UNIT

#2
20250043684
2025-02-06

Centering the Housing Parts of an Axial Piston Machine

#3
20250012262
2025-01-09

INTEGRATED ELECTRO-HYDRAULIC UNIT

#4
20240318642
2024-09-26

ACTUATION SYSTEM FOR A MOTOR

#5
20230304481
2023-09-28

Valve plate, cylinder block, and hydraulic pump/motor

#6
20230279833
2023-09-07

Valve plate, cylinder block, and hydraulic motor

#7
20230021713
2023-01-26

Hydraulic pump/motor

#8
20220228580
2022-07-21

VALVE PLATE FOR FLUID PUMP

#9
20220106945
2022-04-07

Hydrostatic axial piston machine

#10
20210254608
2021-08-19

Rotary axial piston machine with hydrostatic pressing device seal arrangement

#11
20210189878
2021-06-24

HYDRAULIC AXIAL PISTON MACHINE

#12
20210148343
2021-05-20

Hydraulic piston machine

#13
20210095647
2021-04-01

Axial piston pump with port plate having balance feed aperture relief feature

#14
20200340460
2020-10-29

Hydraulic machine, hydraulic assembly having the hydraulic machine, and hydraulic axle having the hydraulic machine

#15
20200011307
2020-01-09

Rotary type valve plate compressor

#16
20190390663
2019-12-26

Hydraulic pump with inlet baffle

#17
20190234388
2019-08-01

Hydraulic machine

#18
20190178226
2019-06-13

Hydrostatic piston engine

#19
20190145388
2019-05-16

HYDRAULIC ROTARY MACHINE AND VALVE PLATE THEREOF

#20
20180156207
2018-06-07

Axial piston hydraulic pump

#21
20170342970
2017-11-30

Axial piston pump/motor

#22
20170298912
2017-10-19

Hydrostatic pump barrel with sloped kidney ports

#23
20170058876
2017-03-02

Hydraulic pump port plate with variable area metering notch

#24
20160327015
2016-11-10

Hydraulic pump/motor

#25
20160281505
2016-09-29

Banded ceramic valve and/or port plate

#26
20160230749
2016-08-11

Hydraulic device

#27
20160131119
2016-05-12

Pump device

#28
20160108901
2016-04-21

Axial piston pump

#29
20150167630
2015-06-18

Hydrostatic axial piston machine

#30
20150128796
2015-05-14

Hydrostatic axial piston machine

#31
20150078930
2015-03-19

Fluid pressure pump

#32
20150049966
2015-02-19

Sliding member

#33
20140360351
2014-12-11

Fluid pressure rotary machine

#34
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

#35
20140166387
2014-06-19

Vehicle with a hydraulic drive system

#36
20140150640
2014-06-05

Hydrostatic positive displacement machine

#37
20130298754
2013-11-14

Axial piston machine

#38
20130055888
2013-03-07

Valve plate and axial piston hydraulic pump motor including the same

#39
20120031089
2012-02-09

Axial bearing for use in a hydraulic device, a hydraulic transformer and a vehicle with a hydraulic drive system

#40
20110030644
2011-02-10

Flow-optimized cylinder drum for hydrostatic piston engines

#41
20100000401
2010-01-07

AXIAL-PISTON MACHINE HAVING AN ANTIWEAR LAYER

#42
20090199705
2009-08-13

AXIAL PISTON MACHINE AND CONTROL PLATE FOR AN AXIAL PISTON MACHINE

#43
20090095148
2009-04-16

Hydrostatic axial piston machine

#44
20090041591
2009-02-12

Fluid powered motor

#45
20080295682
2008-12-04

Hydraulic pump end cover

#46
20080295680
2008-12-04

Hydrostatic piston machine with output volume flow in the circumferential direction

#47
20080246222
2008-10-09

Displacer unit with a valve plate body

#48
20080138225
2008-06-12

Hydraulic piston pump with a balance valve

#49
20070289441
2007-12-20

Axial piston pump or motor of the swashplate or bent axis type

#50
20070074626
2007-04-05

Distribution system for a hydrostatic piston machine

#51
20070028610
2007-02-08

Working vehicle

#52
20070022873
2007-02-01

Wear-resistant port plate for a fluid transfer device and fluid transfer device including same

#53
20060269421
2006-11-30

Axial piston device

#54
20060169072
2006-08-03

Axial piston machine and a control plate for an axial piston engine

#55
20050226748
2005-10-13

Hydraulic machine having pressure equalization

#56
20050172798
2005-08-11

Rotating group of a hydraulic machine

#57
16026634
2020-01-14

Hydraulic running surface

#58
15600353
2018-07-10

Hydraulic running surface

#59
14248570
2017-05-23

Hydraulic running surface