ClassID:

143853

F04C2270/02 - CPC Classification

Classification description:

Control; Monitoring or safety arrangements Power

Sub-classes:
Recent Application in this class:
#1
20240401595
2024-12-05

METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSOR

#2
20230279857
2023-09-07

Method for controlling a rotary screw compressor

#3
20220325714
2022-10-13

Method for controlling the rotational speed of an electric motor driven compressor and control unit adapted to perform the method

#4
20220082100
2022-03-17

Method for controlling a rotary screw compressor

#5
20180291902
2018-10-11

Method for controlling a rotary screw compressor

#6
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

#7
20170227273
2017-08-10

Controls and operation of variable frequency drives

#8
20160041026
2016-02-11

Method of determining pump flow in twin screw positive displacement pumps

#9
20150377536
2015-12-31

Controls and operation of variable frequency drives

#10
20140135999
2014-05-15

Method of determining pump flow in rotary positive displacement pumps

#11
20140105757
2014-04-17

System and method of remotely connecting and disconnecting the auxiliary power supply of a frequency inverter for variable capacity compressor employed in cooling systems

#12
20120219443
2012-08-30

Vacuum pumping system having an ejector and check valve

#13
20120063917
2012-03-15

Roughing pump method for a positive displacement pump

#14
20110014077
2011-01-20

Method for cooling a liquid-injected compressor element and liquid-inject compressor element for applying such a method

#15
20090120405
2009-05-14

System with a compressor and with a consumer in a motor vehicle

#16
20050265860
2005-12-01

Motor-mounted internal gear pump and electronic device