ClassID:

143343

F04B2205/02 - CPC Classification

Classification description:

Fluid parameters Pressure in the inlet chamber

Recent Application in this class:
#1
20260117763
2026-04-30

Intuitive Natural Gas Compressor Monitoring System

#2
20260085678
2026-03-26

AUTOMATED VALVE ACTUATION FOR FRAC FLUID ENDS USING POSITION AND/OR PRESSURE SENSORS

#3
20250341263
2025-11-06

ELECTRO-MAGNETIC THROTTLE VALVE WITH INTEGRATED BLOWDOWN CONDUIT

#4
20250283460
2025-09-11

AUTOMATED VALVE ACTUATION FOR FRAC FLUID ENDS USING POSITION AND/OR PRESSURE SENSORS

#5
20240328530
2024-10-03

ELECTRO-MAGNETIC THROTTLE VALVE

#6
20240240629
2024-07-18

DYNAMIC COMPRESSOR CONTROLS

#7
20240141886
2024-05-02

VALVE CONDITION MONITORING SYSTEM

#8
20230204029
2023-06-29

Variable displacement piston pump with electronic control unit to provide direct metering control

#9
20230044928
2023-02-09

HYDRAULIC FRACTURING PUMP HEALTH AND PERFORMANCE MONITORING USING IOT SENSOR NETWORKS

#10
20220299023
2022-09-22

Intuitive Natural Gas Compressor Monitoring System

#11
20210017978
2021-01-21

Dynamic compressor controls

#12
20200370988
2020-11-26

Determining operational health of a pump

#13
20200332781
2020-10-22

Hydraulic pressure amplifier

#14
20200040888
2020-02-06

Rig management system for transmission control of a hydraulic fracturing rig

#15
20190376862
2019-12-12

Compression device

#16
20190331109
2019-10-31

Electrofluidic Assembly and Method for its Operation

#17
20190257306
2019-08-22

Reciprocating Compressor System with Liquid Pumping Capability

#18
20190249660
2019-08-15

Method for controlling the outlet temperature of an oil injected compressor or vacuum pump and oil injected compressor or vacuum pump implementing such method

#19
20190178234
2019-06-13

Cavitation avoidance system

#20
20190154029
2019-05-23

METHODS AND SYSTEMS FOR AIR COMPRESSOR WITH ELECTRIC INLET VALVE CONTROL

#21
20190003473
2019-01-03

Systems and methods for controlling multi-chamber subsea pumps

#22
20180347558
2018-12-06

Intake pressure control system

#23
20180328355
2018-11-15

Intake Pressure Control System

#24
20180291888
2018-10-11

Control valve for variable displacement compressor

#25
20180283379
2018-10-04

Method for regulating the rotational speed of a compressor as a function of the available gas flow of a source and regulation thereby applied

#26
20180283368
2018-10-04

DETERMINING QUALITY OF GAS FOR ROTATING EQUIPMENT IN A PETROCHEMICAL PLANT OR REFINERY

#27
20180231407
2018-08-16

Supervised proportional metering device and methods for monitoring a metering pump

#28
20180195373
2018-07-12

DOWNHOLE LINEAR MOTOR AND PUMP SENSOR DATA SYSTEM

#29
20180187669
2018-07-05

Miniature fluid control device

#30
20180045194
2018-02-15

Pump monitoring method

#31
20180040226
2018-02-08

Cavitation limiting strategies for pumping system

#32
20170314282
2017-11-02

Fluid circulation monitoring system

#33
20170226998
2017-08-10

Well stimulation pump control and method

#34
20170107982
2017-04-20

SYSTEM AND METHOD FOR OPERATION OF A PUMP WITH FEED AND DISPENSE SENSORS, FILTRATION AND DISPENSE CONFIRMATION, AND REDUCED PRESSURE PRIMING OF FILTER

#35
20160356270
2016-12-08

Monitoring system for fluid pump

#36
20150238677
2015-08-27

Pressure detection device of liquid flow route

#37
20150050161
2015-02-19

Air operated diaphragm pump

#38
20140255215
2014-09-11

Intelligent pump monitoring and control system

#39
20130272900
2013-10-17

Method and device for controlling an auxiliary pump for a transmission

#40
20130202456
2013-08-08

Liquid metering pump, and device for detecting the variation in pressure for such a pump

#41
20120150089
2012-06-14

Device for pumping blood in an extracorporeal circuit

#42
20110008181
2011-01-13

Fixed and variable compressor system capacity control

#43
20080286120
2008-11-20

Reciprocating piston pump operating on pressure medium

#44
20070177985
2007-08-02

Integral sensor and control for dry run and flow fault protection of a pump

#45
20070107698
2007-05-17

High pressure fuel pump provided with damper

#46
20050244277
2005-11-03

Fixed and variable compressor system capacity control

#47
18130119
2024-05-28

Electro-magnetic throttle valve with integrated blowdown conduit

#48
15433734
2018-07-10

Intake pressure control system