Patents-Review.com
ClassID:

143682 ⎘

F04C29/0014 - CPC Classification

Classification description:

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  - ; Injection of a fluid in the working chamber for sealing, cooling and lubricating with control systems for the injection of the fluid

Recent Application in this class:
#1
20250198407
2025-06-19

AIREND HAVING A LUBRICANT FLOW VALVE AND CONTROLLER

 #2
20250012289
2025-01-09

SYSTEM AND METHOD FOR INJECTING DRY GASES INTO GAS COMPRESSOR

 #3
20240011489
2024-01-11

Airend having a lubricant flow valve and controller

 #4
20230383749
2023-11-30

Liquid-cooled rotary compressor and coolant supply method therefor

 #5
20230076739
2023-03-09

Multiple stage vacuum pump

 #6
20230017093
2023-01-19

Airend having a lubricant flow valve and controller

 #7
20230003218
2023-01-05

Scroll compressor with second intermediate cap to facilitate refrigerant injection

 #8
20220316480
2022-10-06

ROTARY SCREW COMPRESSOR

 #9
20220205447
2022-06-30

Compressor and method of controlling the compressor

 #10
20220003236
2022-01-06

Liquid level height detection in a gas-liquid separator of a liquid supply type gas compressor

 #11
20210215408
2021-07-15

Economizer control systems and methods

 #12
20210207482
2021-07-08

Gas expansion device and method for expanding gas

 #13
20210190071
2021-06-24

Compressor stop valve and associated system

 #14
20210095657
2021-04-01

Airend having a lubricant flow valve and controller

 #15
20200240415
2020-07-30

Oil feed type air compressor

 #16
20200102960
2020-04-02

Primary vacuum pump of dry type and method for controlling the injection of a purge gas

 #17
20200072220
2020-03-05

Controller unit for controlling the speed of a motor driving an oil injected compressor and method of controlling said speed

 #18
20190316585
2019-10-17

Liquid-injected compressor or expander element and method for controlling the liquid injection of a compressor or expander device

 #19
20190203716
2019-07-04

Compressor stop valve and associated system

 #20
20190072093
2019-03-07

Compression device

 #21
20190048873
2019-02-14

Single-stage compressor and energy system using the same

 #22
20180363652
2018-12-20

Method of controlling the temperature and mass flow of a liquid injected into the bearings and compressor space of a compressor using two separated liquid supplies

 #23
20180347567
2018-12-06

Method for regulating the liquid injection of a compressor or expander device, a liquid-injected compressor or expander device, and a liquid-injected compressor or expander element

 #24
20180306189
2018-10-25

Oil circuit, oil-free compressor provided with such oil circuit and a method to control lubrication and/or cooling of such oil-free compressor via such oil circuit

 #25
20180283380
2018-10-04

Method and device for controlling the oil temperature of an oil-injected compressor installation or vacuum pump using a flow distributor

 #26
20180209423
2018-07-26

Rotary compressor with vapor injection system

 #27
20180119602
2018-05-03

Oil-injected screw air compressor

 #28
20180119601
2018-05-03

Two-stage oil-injected screw air compressor

 #29
20180119600
2018-05-03

Oil-injected screw air compressor

 #30
20180023469
2018-01-25

Sensor attachment structure

 #31
20180017062
2018-01-18

Compressor system and lubricant control valve to regulate temperature of a lubricant

 #32
20170298937
2017-10-19

Method for controlling an oil-injected compressor device

 #33
20170175743
2017-06-22

COLD START HELIUM COMPRESSOR

 #34
20170082108
2017-03-23

WATER LUBRICATION TWIN-SCREW TYPE AIR COMPRESSOR

 #35
20170002818
2017-01-05

Compressor with thermally-responsive injector

 #36
20160369801
2016-12-22

Screw machine and method for operating the same

 #37
20160327045
2016-11-10

Method for preventing condensate in the oil of an oil-injected compressor and compressor in which such a method is applied

 #38
20160215777
2016-07-28

Liquid injected screw compressor, controller for the transition from an unloaded state to a loaded state of such a screw compressor and method applied therewith

 #39
20160160860
2016-06-09

Capacity modulated scroll compressor

 #40
20160123327
2016-05-05

Rotary screw compressor rotor having work extraction mechanism

 #41
20150322756
2015-11-12

Subsea multiphase pump or compressor with magnetic coupling and cooling or lubrication by liquid or gas extracted from process fluid

 #42
20150170938
2015-06-18

Method and device for pumping of a process chamber

 #43
20150118091
2015-04-30

Rotary compressor with vapor injection system

 #44
20150004040
2015-01-01

Injection port and orbiting-side wrap for a scroll compressor

 #45
20140363310
2014-12-11

Water-injected gas compressor and method for controlling the water supply

 #46
20130058822
2013-03-07

Screw compressor

 #47
20120207634
2012-08-16

Lubricant control valve for a screw compressor

 #48
20120171069
2012-07-05

Screw compressor with a shunt pulsation trap

 #49
20120003113
2012-01-05

Screw compressor

 #50
20110300014
2011-12-08

Rotary lobe blower (pump) or vacuum pump with a shunt pulsation trap

 #51
20110293441
2011-12-01

MULTIPHASE PUMP FLOW RECIRCULATION SYSTEM

 #52
20110058971
2011-03-10

Injection tubes for injection of fluid into a scroll compressor

 #53
20100233004
2010-09-16

Air compressor of water injection type

 #54
20100158733
2010-06-24

Oil-free scroll compressor

 #55
20100095704
2010-04-22

Injection System and Method for Refrigeration System Compressor

 #56
20090252632
2009-10-08

Device to prevent the formation of condensate in compressed gas and compressor unit equipped with such a device

 #57
20080279708
2008-11-13

Screw Compressor with Oil Feed System

 #58
20080236179
2008-10-02

Injection system and method for refrigeration system compressor

 #59
20080089795
2008-04-17

Water-injected compressor

 #60
20080078192
2008-04-03

Injection system and method for refrigeration system compressor

 #61
20070172361
2007-07-26

Cleaning method of a rotary piston vacuum pump

 #62
20060120909
2006-06-08

Rotary piston vacuum pump with washing installation

 #63
20050226758
2005-10-13

Screw compressor

 #64
20050089432
2005-04-28

Method for controlling the oil recirculation in an oil-injected screw-type compressor and compressor using this method

 #65
20050008513
2005-01-13

Lubricant-cooled gas compressor