ClassID:

136699

F01C20/14 - 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 rotating valves

Recent Application in this class:
#1
20190242259
2019-08-08

Circulating piston engine having a rotary valve assembly

#2
20180371911
2018-12-27

Direct port commutator and manifold assembly

#3
20180306033
2018-10-25

Four-stroke rotary- piston engine with adjustable compression ratio and adjustable valve control times

#4
20160356213
2016-12-08

Rotary internal combustion engine with rotary valve

#5
20160281596
2016-09-29

Circulating piston engine having a rotary valve assembly

#6
20160258291
2016-09-08

Reversing mechanism for a power tool

#7
20160194958
2016-07-07

Rotary expansible chamber devices and systems incorporating the same

#8
20150275669
2015-10-01

Air-tight switching device for use in a pneumatic tool

#9
20150247405
2015-09-03

Refrigeration system including a rotary expansible chamber device having adjustable working-fluid ports

#10
20150198158
2015-07-16

Displacement pump and a control ring for a displacement pump

#11
20150147212
2015-05-28

Reversible pneumatic vane motor

#12
20150098851
2015-04-09

Rotary expansible chamber devices having adjustable arcs of rotation, and systems incorporating the same

#13
20140325986
2014-11-06

Rotary engine and process

#14
20140119967
2014-05-01

Rotary expansible chamber devices having adjustable working-fluid ports, and systems incorporating the same

#15
20140083086
2014-03-27

Gerotor pump, a gerotor motor and a gerotor transmission system

#16
20120039733
2012-02-16

Rotary piston steam engine with rotary variable inlet-cut-off valve

#17
20100247360
2010-09-30

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#18
20100192896
2010-08-05

INTERNAL COMBUSTION ENGINES WITH RING-SHAPED CYLINDERS

#19
20100028188
2010-02-04

Low speed, high torque rotary abutment motor

#20
20090324432
2009-12-31

Gerotor apparatus for a quasi-isothermal Brayton cycle engine

#21
20080298960
2008-12-04

Micro-Air Motor

#22
20050000214
2005-01-06

Rotary positive displacement machine