F01C20/12 - CPC Classification Index

ClassID:

136697 ⎘

F01C20/12 - CPC Classification

Classification description:

Control of, monitoring of, or safety arrangements for, machines or engines characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves

Sub-classes:

F01C20/125 » {with sliding valves controlled by the use of fluid other than the working fluid} 0

Recent Application in this class:

20220381145

2022-12-01

MODULAR ROTARY ENGINE

20210388834

2021-12-16

Screw expander with variable volume controlled by the pressure ratio, and plant for recovering electrical energy from heat with a screw expander

20180371934

2018-12-27

Screw expander with adjustable valve

20140127067

2014-05-08

Screw compressor having a volume ratio being adjusted by end faces extending along from a low-pressure side end wall to discharge edges of a slider

20100213786

2010-08-26

Electric machine having rotor and stator configurations

20090120406

2009-05-14

Rotary piston and cylinder devices

20070277524

2007-12-06

Engine And An Apparatus For Providing Forced Aspiration To An Engine

20060279155

2006-12-14

Electric machine having a high-torque switched reluctance motor

20060239849

2006-10-26

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#10

20060086336

2006-04-27

Toroidal engine with variable displacement volume

#11

20060075989

2006-04-13

High efficiency hot gas vane actuator

#12

20050000214

2005-01-06

Rotary positive displacement machine