F04B1/30 - CPC Classification Index

ClassID:

142646 ⎘

F04B1/30 - 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; Control of machines or pumps with rotary cylinder blocks

Sub-classes:

F04B1/303 » {by turning the valve plate} 16
F04B1/306 » {by turning the swash plate (with fixed inclination)} 6
F04B1/32 » by varying the relative positions of a swash plate and a cylinder block 27

Recent Application in this class:

20250361849

2025-11-27

A HYDRAULIC DEVICE

20250101967

2025-03-27

SYSTEM FOR DETECTING ABNORMALITY IN HYDRAULIC ROTATING EQUIPMENT

20210164501

2021-06-03

Hydraulic axial piston unit and method for controlling of a hydraulic axial piston unit

20210108623

2021-04-15

BENT-AXIS AXIAL-PISTON HYDRAULIC MACHINE

20200018298

2020-01-16

Liquid pressure rotary machine

20190113028

2019-04-18

Rotatable piston assembly

20180340501

2018-11-29

VARIABLE DISPLACEMENT FUEL PUMP WITH POSITION SENSOR

20160108901

2016-04-21

Axial piston pump

20160048133

2016-02-18

Hydraulic pump assembly

#10

20150240961

2015-08-27

Electrically controlled pressure control valve for an adjustable hydrostatic pump

#11

20140157765

2014-06-12

Hydrostatic positive displacement machine

#12

20130115112

2013-05-09

VARIABLE DISPLACEMENT HYDRAULIC PUMP/MOTOR WITH HYDROSTATIC VALVE PLATE

#13

20120244023

2012-09-27

Hydraulic pump assembly

#14

20100202900

2010-08-12

Hydrostatic machine having a control device having a return element for controlling a regulating valve

#15

20100074767

2010-03-25

Hydraulic pump system with reduced cold start parasitic loss

#16

20100021313

2010-01-28

Electronic control for a rotary fluid device