ClassID:

142595

F04B1/063 - CPC Classification

Classification description:

Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement; Control by using a valve in a system with several pumping chambers wherein the flow-path through the chambers can be changed, e.g. between series and parallel flow

Recent Application in this class:
#1
20250327437
2025-10-23

HYDRAULIC MACHINE PROVIDED WITH A DIRECTION CHANGING DRAWER

#2
20250270961
2025-08-28

DIRECT CONTROL VARIABLE DISPLACEMENT PUMP WITH DUAL-FUNCTION HIGH-PRESSURE RELIEF VALVE-PRESSURE REGULATING VALVE

#3
20240328389
2024-10-03

WIND TURBINE GENERATOR WITH HYDRAULIC PUMP

#4
20240200551
2024-06-20

HYDRAULIC CIRCUIT ARRANGEMENT AND CONTROL SYSTEM FOR GANGED ELECTRONICALLY-COMMUTATED PUMPS

#5
20210246745
2021-08-12

Device for hydraulically operating a drive wheel of a wellbore tractor, e.g. a motor, and related tractor, wellbore string, and method

#6
20190337798
2019-11-07

Micromechanical devices with mechanical actuators

#7
20170306936
2017-10-26

Controller for hydraulic pump

#8
20170306910
2017-10-26

Pump unit for supplying fuel, preferably diesel oil, to an internal combustion engine

#9
20170284388
2017-10-05

Industrial system with synthetically commutated variable displacement fluid working machine

#10
20170138335
2017-05-18

HYDROSTATIC RADIAL PISTON MACHINE

#11
20170130693
2017-05-11

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

#12
20170122285
2017-05-04

Hydraulic machine having two cylinder capacities and a safety valve

#13
20170009753
2017-01-12

Radial piston pump assemblies and use thereof in hydraulic circuits

#14
20160208898
2016-07-21

Hydraulic transmission

#15
20140227113
2014-08-14

Double hydraulic machine with a distribution valve and a driving system comprising such a hydraulic machine

#16
20140221973
2014-08-07

Intravenous piston pump disposable and mechanism

#17
20130145929
2013-06-13

Hydrostatic radial piston machine

#18
20110041681
2011-02-24

POSITIVE-DISPLACEMENT MACHINE

#19
20100305508
2010-12-02

Intravenous piston pump disposable and mechanism

#20
20080206073
2008-08-28

Fluid-working machines

#21
18589583
2025-08-26

Direct control variable displacement pump with dual-function high-pressure relief valve- pressure regulating valve