ClassID:

138652

F02B25/06 - CPC Classification

Classification description:

Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging; Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke the cylinder-head ports being controlled by working pistons, e.g. by sleeve-shaped extensions thereof

Recent Application in this class:
#1
20230143774
2023-05-11

Two-stroke internal combustion engine

#2
20230133431
2023-05-04

Two-stroke internal combustion engine and engine working machine

#3
20190323419
2019-10-24

Internal combustion engines

#4
20190100295
2019-04-04

INTERNAL COMBUSTION ENGINE

#5
20180080369
2018-03-22

Two-stroke internal combustion engine

#6
20180073424
2018-03-15

INTERNAL COMBUSTION ENGINES

#7
20170217553
2017-08-03

Internal combustion engine

#8
20170204779
2017-07-20

Low-emission cylinder with external scavenging duct

#9
20160138499
2016-05-19

EGR for a two-stroke cycle engine without a supercharger

#10
20160061099
2016-03-03

UNIFLOW SCAVENGING 2-CYCLE ENGINE

#11
20160061098
2016-03-03

UNIFLOW SCAVENGING 2-CYCLE ENGINE

#12
20150000640
2015-01-01

Fuel system having sealed injection port

#13
20140251293
2014-09-11

Stratified scavenging two-stroke engine

#14
20120192559
2012-08-02

Exhaust system for an internal combustion engine

#15
20120090298
2012-04-19

ENGINE COMBUSTION CONDITION AND EMISSION CONTROLS

#16
20120006308
2012-01-12

Piston for a Two-Stroke Engine

#17
20110308507
2011-12-22

Two-stroke cycle combustion engine of air scavenging type

#18
20110162630
2011-07-07

Stratified scavenging two-stroke engine

#19
20110139098
2011-06-16

Positive crankcase ventilation system

#20
20110083625
2011-04-14

Dual Function Crankcase Breather System

#21
20110048366
2011-03-03

Engine and piston

#22
20100300411
2010-12-02

Two-stroke internal combustion engine with variable compression ration and an exhaust port shutter

#23
20080196779
2008-08-21

Variable stiffness flow control valve

#24
20060000459
2006-01-05

Variable stiffness flow control valve

#25
20050076881
2005-04-14

Internal combustion engine with novel fuel / air delivery system

#26
20050076878
2005-04-14

Internal combustion engine with novel fuel/air delivery system

#27
15828594
2018-07-03

Internal combustion engine with coaxially aligned pistons