ClassID:

143901

F04C2270/21 - CPC Classification

Classification description:

Control; Monitoring or safety arrangements Pressure difference

Sub-classes:
Recent Application in this class:
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Method for determining a flow volume of a fluid delivered by a pump

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Screw expander

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Vacuum pump in particular roots type pump

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Scroll compressor with two scrolls

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Sliding vane pump with internal cam ring

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PROGRESSING CAVITY PUMP WITH HEAT MANAGEMENT SYSTEM

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20080300727
2008-12-04

Method of calculating pump flow rates and an automated pump control system

#19
20080279699
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Controller for a variable displacement feed pump

#20
20070212243
2007-09-13

Variable displacement vane pump and method of controlling the same

#21
20060204377
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Internal intermediate pressure multistage compression type rotary compressor, manufacturing method thereof and displacement ratio setting method

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20060117790
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Screw compressor

#23
20060056983
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Internal intermediate pressure multistage compression type rotary compressor, manufacturing method thereof and displacement ratio setting method

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Multistage compression type rotary compressor

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20060056981
2006-03-16

Filtering device for multistage compression type rotary compressor

#26
20050257542
2005-11-24

Compressor lubrication