ClassID:

146161

F15B21/045 - CPC Classification

Classification description:

Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass; Special measures taken in connection with the properties of the fluid Compensating for variations in viscosity or temperature

Recent Application in this class:
#1
20250305523
2025-10-02

WORKING MACHINE AND CONTROL METHOD THEREFOR

#2
20250109756
2025-04-03

METHOD AND SYSTEMS FOR CONTROLLING FLUID TEMPERATURE IN A HYDRAULIC SYSTEM OF AN AIRCRAFT POWERED BY AN HPP

#3
20250092890
2025-03-20

TEMPERATURE REGULATION SYSTEM FOR VEHICLE HYDRAULIC SYSTEM

#4
20240328119
2024-10-03

HYDRAULIC SYSTEM OF WORKING MACHINE

#5
20240011511
2024-01-11

Valve

#6
20230243371
2023-08-03

Temperature regulation system for vehicle hydraulic system

#7
20230117627
2023-04-20

Hydraulic circuit equipped with a system for controlling a hydraulic component

#8
20230087782
2023-03-23

Soil processing machine and method for operating a soil processing machine

#9
20220307527
2022-09-29

SYSTEM TO REDUCE LINE LOSS IN PRESSURE CONTROL HYDRAULIC CIRCUIT

#10
20220290406
2022-09-15

Work machine

#11
20220004258
2022-01-06

Tactile sense presentation apparatus, electronic apparatus, accessory, and holding apparatus

#12
20210396251
2021-12-23

Temperature regulation system for vehicle hydraulic system

#13
20210355973
2021-11-18

Hydrostatic drive

#14
20210332562
2021-10-28

Work machine

#15
20210207345
2021-07-08

Work machine

#16
20210189693
2021-06-24

Hydraulic system

#17
20200347857
2020-11-05

Temperature regulation system for vehicle hydraulic system

#18
20200200196
2020-06-25

Safety valve and method for controlling a hydraulic circuit

#19
20200063481
2020-02-27

Externally verifiable thermal compensation of cowl opening actuator

#20
20200032821
2020-01-30

Hydraulic oil temperature management

#21
20190331253
2019-10-31

Thermal volume control for an actuator assembly

#22
20190003498
2019-01-03

Ram air turbine structures for temperature dependent damping

#23
20180372134
2018-12-27

Hydraulic valve

#24
20180266444
2018-09-20

Hydraulic oil tank for power generation system and method for sealing hydraulic oil in said hydraulic oil tank

#25
20180223882
2018-08-09

Flow responsiveness enhancer for a blowout preventer

#26
20180216639
2018-08-02

Accumulator with secondary gas chamber

#27
20180209451
2018-07-26

SYSTEMS AND METHODS FOR MAINTAINING HYDRAULIC ACCUMULATORS

#28
20180142711
2018-05-24

Adjustment system for a hydraulic actuator

#29
20170198727
2017-07-13

Oil exchange in hydraulically operated and electro-hydraulically operated hydraulic valves

#30
20170107696
2017-04-20

Work machine

#31
20170030383
2017-02-02

System and method for in-situ state monitoring of a hydraulic system

#32
20170023032
2017-01-26

Loop-flushing-system for hydrostatic apparatus

#33
20160245314
2016-08-25

Method and temperature transmission compensation

#34
20150268119
2015-09-24

Method for temperature transmission compensation

#35
20150261225
2015-09-17

Positioner

#36
20120220426
2012-08-30

Charge bypass system for engine start

#37
20120204548
2012-08-16

Cold start valve

#38
20100236227
2010-09-23

Hydraulic system control device and valve timing control device

#39
20090178397
2009-07-16

Servo system augmented with an active material component

#40
20070125433
2007-06-07

Manual valve of a hydraulic pressure control system for an automatic transmission

#41
20060191404
2006-08-31

Hydraulic system

#42
20060042240
2006-03-02

System and method for controlling hydraulic fluid flow

#43
20060021340
2006-02-02

System and method for controlling viscosity of a fluid and a working vehicle containing such a system

#44
20050241304
2005-11-03

Method and a device for controlling a vehicle and a computer program for performing the method

#45
16409484
2020-04-21

Hydraulic fluid conditioning device

#46
15784880
2020-02-11

Transmission assembly

#47
14640616
2017-10-17

Transmission assembly