ClassID:

138374

F01P7/044 - CPC Classification

Classification description:

Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using hydraulic drives

Recent Application in this class:
#1
20250163842
2025-05-22

FAN SPEED CONTROL SYSTEM FOR ENGINE COOLING

#2
20240240653
2024-07-18

Fan Drive Device with Proportional Valve

#3
20230358160
2023-11-09

Hydraulic operating device for a cooling fan of a utility vehicle

#4
20230349402
2023-11-02

Working machine

#5
20230235694
2023-07-27

Fan speed control system for engine cooling

#6
20230203789
2023-06-29

Work vehicle and control method for fan of work vehicle

#7
20230167760
2023-06-01

Flow sharing control for multiple hydraulic fan motors

#8
20220235859
2022-07-28

Cooling system for vehicle

#9
20220056833
2022-02-24

Hydraulic drive fan control device

#10
20220049729
2022-02-17

Working machine

#11
20200191042
2020-06-18

Liquid driven thermal module and thermal management system

#12
20200088087
2020-03-19

Fan speed control algorithm for engine cooling

#13
20190292975
2019-09-26

HYDRAULIC FAN ARRANGEMENT

#14
20190162296
2019-05-30

Propulsion system for a construction machine

#15
20190093684
2019-03-28

Fan drive system and management system

#16
20180328261
2018-11-15

Fan speed control system for engine cooling

#17
20180291797
2018-10-11

Hydraulic system for maintaining minimum low side pressure of closed circuit hydraulic system

#18
20180252314
2018-09-06

Wheel loader

#19
20180251957
2018-09-06

Work machine

#20
20180172030
2018-06-21

Fan control system with electro-hydraulic valve providing three fan motor operational positions

#21
20180135771
2018-05-17

Valve device for controlling a fluid flow and flow control valve

#22
20180010493
2018-01-11

Utility vehicle fluid cooling

#23
20170276055
2017-09-28

HYDRAULIC PUMP/MOTOR WITH ROTATION DETECTION MECHANISM

#24
20170241445
2017-08-24

Fluid systems for machines with integrated energy recovery circuit

#25
20170089254
2017-03-30

Cooling system having pulsed fan control

#26
20170009783
2017-01-12

System for selectively bypassing fluid supply to one or more operational systems of a machine

#27
20160281328
2016-09-29

Work vehicle

#28
20160273177
2016-09-22

Driving arrangement and cooling system for a snow blower device

#29
20160245149
2016-08-25

Hydraulic driven fan system

#30
20160201545
2016-07-14

Cooling fan control device for construction machine

#31
20160089957
2016-03-31

AC SYSTEM WITH PROPORTIONAL CONTROLLED HYDRAULIC FAN

#32
20150308325
2015-10-29

DEVICE FOR CONTROLLING THE OPERATION OF A VENTILATOR, WHICH CAN BE DRIVEN BY A HYDRAULIC MOTOR, OF A COOLING DEVICE

#33
20150198244
2015-07-16

WORK VEHICLE

#34
20150040548
2015-02-12

Hydraulic system having low speed operation

#35
20140373925
2014-12-25

Method for controlling cooling fan-brake of construction equipment

#36
20140311140
2014-10-23

Cooling fan control device

#37
20140209047
2014-07-31

Engine compensation for fan power

#38
20140169991
2014-06-19

STRUCTURE FOR CONTROLLING HYDRAULIC PUMP FOR DRIVING ENGINE COOLING FAN OF HYBRID VEHICLE

#39
20140060099
2014-03-06

Construction machine and control method for cooling fan

#40
20140060034
2014-03-06

Electro-Hydraulic Control Design for Pump Discharge Pressure Control

#41
20140033693
2014-02-06

Reduced parasitic hydraulic fan system with reversing capability

#42
20140033692
2014-02-06

SYSTEM AND METHOD TO CHARGE AND DISCHARGE AN ACCUMULATOR

#43
20140033691
2014-02-06

Hydraulic circuit control

#44
20140018964
2014-01-16

Valve contamination dislodgement

#45
20130318952
2013-12-05

Method for controlling a hydraulic pump of a wheel loader

#46
20130243611
2013-09-19

Hydraulically driven cooling fan responsive to engine load

#47
20130213023
2013-08-22

HYDRAULIC SYSTEM HAVING LOW-SPEED OPERATING MODE

#48
20130092366
2013-04-18

Work machine

#49
20130081386
2013-04-04

System and method for controlling charging of an accumulator in an electro-hydraulic system

#50
20130000291
2013-01-03

Hydraulic circuit having energy storage and reuse

#51
20120304636
2012-12-06

Hydraulic fan circuit

#52
20120304631
2012-12-06

Hydraulic fluid system

#53
20120298327
2012-11-29

COOLING APPARATUS FOR CONTROLLING AIRFLOW

#54
20120260867
2012-10-18

Control system having variable-speed engine-drive fan

#55
20120241235
2012-09-27

Work vehicle and method for controlling work vehicle

#56
20120138414
2012-06-07

CONTROLLING APPARATUS FOR FAN CLUTCH'S RPM IN IDLE AND METHOD THEREOF

#57
20120134848
2012-05-31

HYDRAULIC FAN CIRCUIT HAVING ENERGY RECOVERY

#58
20120060777
2012-03-15

Hydrostatic Fan Drive

#59
20120057989
2012-03-08

Cooling device for construction machinery

#60
20120020811
2012-01-26

Fan Control

#61
20110293439
2011-12-01

Cooling fan driving device and fan rotational speed control method

#62
20110209676
2011-09-01

Electro-hydraulic pressure control fan drive system with electrical failure mode operation

#63
20110011076
2011-01-20

Operating oil supplying device and construction machine

#64
20100326067
2010-12-30

SELF-PROPELLED MACHINE

#65
20100303643
2010-12-02

Fan Drive System

#66
20100287926
2010-11-18

Hydraulic pump/motor and fan driving device

#67
20100107996
2010-05-06

Work vehicle and control method for work vehicle

#68
20100064991
2010-03-18

Control device for cooling fan for vehicle

#69
20090242273
2009-10-01

Drill rig and method for controlling a fan therein

#70
20090235657
2009-09-24

Cooling system and a transmission system having said cooling system integrated therewith

#71
20090217655
2009-09-03

Cooling system for construction machine

#72
20090145376
2009-06-11

Control device for hydraulically driven fan

#73
20090120386
2009-05-14

Control apparatus and control method for hydraulically driven cooling fan

#74
20090025661
2009-01-29

Cooling fan drive system for travel type working machine

#75
20090013942
2009-01-15

Cooling structure for a work vehicle

#76
20080238607
2008-10-02

Fan speed control system

#77
20080108032
2008-05-08

Radial venting axial fan for a power machine

#78
20070068151
2007-03-29

Hydraulic unit with integral oil cooler

#79
20070038355
2007-02-15

Features of main control for a power machine

#80
20070006824
2007-01-11

CONTROLLING SYSTEM FOR COOLING FAN

#81
20060236689
2006-10-26

Apparatus and method for controlling a pump flow of heavy construction equipment

#82
20060196720
2006-09-07

Hydraulic steering system with input horsepower limiting circuit and increased fan speeds at low engine RPM

#83
20060196179
2006-09-07

Load-sensing integrated brake and fan hydraulic system

#84
20060062678
2006-03-23

Fan revolution speed control method

#85
20060021340
2006-02-02

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

#86
20050254959
2005-11-17

Fan revolution speed control method

#87
20050166587
2005-08-04

Independent metering valve assembly for multiple hydraulic load functions

#88
20050139176
2005-06-30

Cooling system for a vehicle and a vehicle comprising the cooling system

#89
20050117970
2005-06-02

Self-propelled road milling machine with cooling system

#90
20050028756
2005-02-10

Engine cooling system

#91
20050016472
2005-01-27

Control system for engine cooling

#92
16574117
2020-08-18

Modular hydraulic valve assembly for work vehicle