ClassID:

144130

F04D25/163 - CPC Classification

Classification description:

Pumping installations or systems; Combinations of two or more pumps Producing two or more separate gas flows driven by a common gearing arrangement

Recent Application in this class:
#1
20260022704
2026-01-22

HYDROGEN COMPRESSING ASSEMBLY, HYDROGEN PRODUCTION PLANT, AND COMPRESSING METHOD

#2
20250347231
2025-11-13

GEARED TURBOFAN WITH OVERSPEED PROTECTION

#3
20250155088
2025-05-15

HYDROGEN COMPRESSOR

#4
20240309878
2024-09-19

INTEGRALLY GEARED COMPRESSOR WITH AN AXIAL COMPRESSOR UNIT AND METHOD

#5
20240280112
2024-08-22

GEARED TURBOMACHINE

#6
20240218971
2024-07-04

OIL CIRCUIT DESIGN, OIL SUPPLY METHOD AND DOUBLE CIRCUIT OIL PUMP FOR WHEEL END ELECTRIC DRIVE AXLE LUBRICATION

#7
20240209866
2024-06-27

HYDROGEN COMPRESSING ASSEMBLY, HYDROGEN PRODUCTION PLANT, AND COMPRESSING METHOD

#8
20230191950
2023-06-22

BLOWING DEVICE

#9
20230175517
2023-06-08

INTEGRALLY GEARED COMPRESSOR

#10
20220268291
2022-08-25

Rotary machine

#11
20220243736
2022-08-04

Geared compressor and method of designing geared compressor

#12
20220154603
2022-05-19

Waste heat recovery system

#13
20220128067
2022-04-28

ROTARY MACHINE AND GEARED COMPRESSOR

#14
20220128060
2022-04-28

GEARED TURBOFAN WITH OVERSPEED PROTECTION

#15
20210310702
2021-10-07

Multistage compression system

#16
20210190082
2021-06-24

Fan

#17
20200392901
2020-12-17

High-speed dual turbo machine enabling cooling thermal equilibrium

#18
20200362868
2020-11-19

Variable speed boost compressor for gas turbine engine cooling air supply

#19
20200217324
2020-07-09

Geared turbofan with overspeed protection

#20
20200191150
2020-06-18

Dual stage blower assembly

#21
20200072230
2020-03-05

Integrally geared compressor having a combination of centrifugal and positive displacement compression stages

#22
20190285091
2019-09-19

Rotary machine

#23
20190234415
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#24
20190234414
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#25
20190234413
2019-08-01

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#26
20190162194
2019-05-30

Geared turbo machine

#27
20190162193
2019-05-30

Mass-spectrometric leak detector with turbomolecular pump and booster pump on a common shaft

#28
20180363665
2018-12-20

Geared turbofan with overspeed protection

#29
20180283389
2018-10-04

Compressor

#30
20180274971
2018-09-27

Dynamic characteristic measurement device of centrifugal rotation machine, and centrifugal rotation machine

#31
20180163733
2018-06-14

Waste heat recovery system

#32
20180073512
2018-03-15

Assembly having two compressors, method for retrofitting

#33
20180065760
2018-03-08

Engine driven air compressor system for a mobile aviation support cart

#34
20180051703
2018-02-22

Variable speed boost compressor for gas turbine engine cooling air supply

#35
20180017154
2018-01-18

Geared Turbocharged Engine

#36
20170350494
2017-12-07

STEPPED JOINT OF A PART ON A TRANSMISSION HOUSING

#37
20170306968
2017-10-26

Turbomachine arrangement

#38
20170306787
2017-10-26

Turbine engine rotating at high speeds

#39
20170292525
2017-10-12

Integrally geared compressor having a combination of centrifugal and positive displacement compression stages

#40
20170276215
2017-09-28

Transmission and transmission turbomachine

#41
20170198704
2017-07-13

Multi-stage compressor system, control device, malfunction determination method, and program

#42
20170002729
2017-01-05

Supercharging Arrangement

#43
20160305708
2016-10-20

Device and method for cooling and/or low-temperature liquefaction

#44
20160245293
2016-08-25

Axial ventilation device, premises equipped with such a device

#45
20160230771
2016-08-11

Geared Turbomachine

#46
20160222970
2016-08-04

High-flow-capacity centrifugal hydrogen gas compression systems, methods and components therefor

#47
20160161133
2016-06-09

Ventilation module with swirler fan

#48
20160160876
2016-06-09

Compressing apparatus housing and compressing apparatus

#49
20160131229
2016-05-12

Method for operating a drive train, and drive train

#50
20160131155
2016-05-12

Geared centrifugal compressor with pressure adjustment portion to balance axial thrust

#51
20160123332
2016-05-05

Rotary machine

#52
20160115963
2016-04-28

Transmission and geared compressor system

#53
20160061206
2016-03-03

Flow volume measurement device for turbo compressor, and turbo compressor

#54
20160033196
2016-02-04

Method for compressing an incoming feed air stream in a cryogenic air separation plant

#55
20160003389
2016-01-07

Expansion joint and compression system

#56
20150330409
2015-11-19

Air compressor system

#57
20150285672
2015-10-08

Dynamic characteristic measurement device of centrifugal rotation machine, and centrifugal rotation machine

#58
20150260197
2015-09-17

WELD-FREE POT VOLUTE CASING

#59
20150233379
2015-08-20

INTEGRALLY GEARED COMPRESSOR WITH ADJUSTABLE INTERMEDIATE GEARWHEEL

#60
20150226233
2015-08-13

Impeller, and rotating machine provided with same

#61
20150162676
2015-06-11

Mounting structure for connection terminal, turbo compressor, and turbo refrigerator

#62
20140356145
2014-12-04

Centrifugal compressor having seal system

#63
20140356140
2014-12-04

Centrifugal compressor having a bearing assembly

#64
20140321966
2014-10-30

PACKAGED VACUUM PUMP AND OIL PUMP, AND SYSTEM AND METHOD THEREOF

#65
20140219775
2014-08-07

Compression system

#66
20140186173
2014-07-03

Diffuser using detachable vanes

#67
20140161588
2014-06-12

Centrifugal compressor

#68
20140105733
2014-04-17

Compressor with cooling function

#69
20140102831
2014-04-17

Turbo compressor

#70
20140050602
2014-02-20

COMBINED ELECTRONIC WATER AND OIL PUMP

#71
20130315741
2013-11-28

Diffuser having detachable vanes with positive lock

#72
20130315707
2013-11-28

Stepped parting joint on a transmission housing of a fluid machine

#73
20130195625
2013-08-01

Integral scroll and gearbox for a compressor with speed change option

#74
20130183146
2013-07-18

Turbo compressor

#75
20130156543
2013-06-20

Single system with integrated compressor and pump and method

#76
20130058761
2013-03-07

Multi-stage integrally geared compressor

#77
20130039746
2013-02-14

Turbocompressor and turborefrigerator for simplified labor and reduced cost

#78
20120100015
2012-04-26

Multi-stage compressor

#79
20120039722
2012-02-16

Geared compressor rotor for cold gas applications

#80
20120014801
2012-01-19

Diffuser having detachable vanes with positive lock

#81
20120014788
2012-01-19

Diffuser using detachable vanes

#82
20120011857
2012-01-19

High-flow-capacity centrifugal hydrogen gas compression systems, methods and components therefor

#83
20120002909
2012-01-05

Transmission, particularly compressor wheel gear and methods to improve the starting behavior of such

#84
20110305558
2011-12-15

Gear-driven turbo compressor

#85
20110225977
2011-09-22

Turbine system

#86
20110076136
2011-03-31

Gas compressor magnetic coupler

#87
20110052111
2011-03-03

MODULAR ROTOR ASSEMBLY

#88
20100158719
2010-06-24

Electric ventilator with unit for controlling speed located in a container surrounding the motor

#89
20100119354
2010-05-13

Turbomachine with failure protection

#90
20100098534
2010-04-22

Integral scroll and gearbox for a compressor with speed change option

#91
20100044468
2010-02-25

DEVICE FOR DISTRIBUTING VOLATILE FLUIDS IN AIR

#92
20090320690
2009-12-31

SUCTION FILTER, TURBO COMPRESSOR AND METHOD FOR COMPACT ASSEMBLING OF THE SAME

#93
20090320283
2009-12-31

Suction filter, turbocompressor, and method for compact assembling of the same

#94
20090297337
2009-12-03

Geared turbine machine for a machine train, machine train with and gear for geared turbine machine

#95
20090199791
2009-08-13

DUAL COOLING FAN SYSTEM DRIVEN BY SINGLE MOTOR

#96
20090175745
2009-07-09

Blower Unit for Vehicle

#97
20090165736
2009-07-02

Cooling unit

#98
20080273991
2008-11-06

Air cooled packaged multi-stage centrifugal compressor method

#99
20080264061
2008-10-30

Modular air compression apparatus with separate platform arrangement

#100
20080240918
2008-10-02

Gear case assembly

#101
20080232954
2008-09-25

VACUUM SYSTEM FOR CONVEYING A HIGH AMOUNT OF SUPPLEMENTAL LIQUID

#102
20080164011
2008-07-10

Liquid cooling type heat-dissipating device

#103
20070166158
2007-07-19

Reverse rotation prevention device

#104
20070031301
2007-02-08

Compressor for high pressure polymerization

#105
20060185334
2006-08-24

Suction filter, turbo compressor, and method of packaging the compressor

#106
20060156728
2006-07-20

Multistage turbocompressor

#107
20060008368
2006-01-12

Modular rotor assembly

#108
20050249442
2005-11-10

Turbomachine

#109
18632282
2025-01-14

Double-layer blade ceiling fan capable of adjusting arrangement of blades