F02B25/02 - CPC Classification Index

ClassID:

138650 ⎘

F02B25/02 - CPC Classification

Classification description:

Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging

Sub-classes:

F02B25/04 » Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke 68
F02B25/08 » Engines with oppositely-moving reciprocating working pistons 130
F02B25/12 » Engines with U-shaped cylinders, having ports in each arm 3

Recent Application in this class:

20250354528

2025-11-20

VALVE SYSTEM FOR TWO-STROKE ENGINE

20250067207

2025-02-27

INTERNAL COMBUSTION ENGINE SYSTEM

20240018915

2024-01-18

AMMONIA-HYDROGEN FUSION FUEL DIFFUSION COMBUSTION CONTROL SYSTEM BASED ON REACTIVITY REGULATION

20230272716

2023-08-31

TWO-STROKE ENGINE WITH BLOWBY-GAS EXCHANGE AND VARIABLE COMBUSTION CHAMBER

20230203981

2023-06-29

GAS EXCHANGE IN INTERNAL COMBUSTION ENGINES FOR INCREASED EFFICIENCY

20230193859

2023-06-22

System device for stratified injecting exhaust gas recirculation for clean combustion of internal combustion engine

20230047309

2023-02-16

Spark ignition internal combustion engine

20210115873

2021-04-22

Cylinder cooling in opposed-piston engines

20200173357

2020-06-04

Internal combustion engine with two working spaces of a cylinder

#10

20190323418

2019-10-24

Internal combustion engine and method for its operation

#11

20180328263

2018-11-15

Uniflow engine with intake and/or exhaust valves

#12

20180128159

2018-05-10

Carburetor for two-stroke internal combustion engine

#13

20180023515

2018-01-25

Suction tube of stratified scavenging engine

#14

20170175615

2017-06-22

Leading-air type two-stroke air-cooled engine

#15

20160356204

2016-12-08

Carburetor for two-stroke internal combustion engine

#16

20160169087

2016-06-16

Air leading type two-stroke engine and intake system for same, and carburetor

#17

20160097344

2016-04-07

Air leading-type stratified scavenging two-stroke internal-combustion engine

#18

20160097343

2016-04-07

Air leading-type stratified scavenging two-stroke internal-combustion engine

#19

20160032816

2016-02-04

Uniflow two-stroke engine

#20

20150337764

2015-11-26

Carburetor for stratified scavenging two-stroke engine

#21

20150260083

2015-09-17

Two-stroke engine

#22

20150260082

2015-09-17

Uniflow two-stroke engine

#23

20150176475

2015-06-25

Uniflow-scavenging-type two-cycle engine

#24

20150167537

2015-06-18

UNIFLOW-SCAVENGING-TYPE TWO-CYCLE ENGINE

#25

20140261261

2014-09-18

Porting system for a turbo-charged loop scavenged two-stroked engine

#26

20140238371

2014-08-28

Two-stroke internal combustion engine

#27

20140060507

2014-03-06

ENGINE AND ENGINE-DRIVEN WORKING MACHINE

#28

20130228158

2013-09-05

Two stroke engine porting arrangement

#29

20130037011

2013-02-14

Two-stroke internal combustion engine

#30

20120318250

2012-12-20

Two-stroke engine

#31

20120227717

2012-09-13

Two-stroke engines

#32

20120097141

2012-04-26

TWO-STROKE ENGINE WITH A COMPRESSED-AIR-ASSISTED FUEL-INJECTION SYSTEM

#33

20110174248

2011-07-21

RESIDUAL BURNT GAS SCAVENGING METHOD IN A DIRECT-INJECTION SUPERCHARGED INTERNAL-COMBUSTION MULTI-CYLINDER ENGINE

#34

20110146642

2011-06-23

Two-stroke engine, sand core for producing a two-stroke engine, and method for operating a two-stroke engine

#35

20110146641

2011-06-23

Internal Combustion Engine

#36

20110036313

2011-02-17

Two-stroke engine

#37

20100288252

2010-11-18

Non-polluting two-stroke engine with air-cooled piston

#38

20090178642

2009-07-16

Heat energy recycling device for an engine and two-stroke engine using the same

#39

20080083381

2008-04-10

Two-stroke internal combustion engine

#40

20080053093

2008-03-06

Uniform pressure unequal surface engine and engine for power generators using the same

#41

20060087046

2006-04-27

Carburetor for two-cycle engine

#42

20050034689

2005-02-17

Carburetor for two-cycle engine

#43

18644655

2025-07-29

Self-charged four stroke one-cycle combustion cylinder for internal combustion engine

#44

15852546

2019-08-27

Method of operating an internal combustion engine utilizing heat in engine cycles

#45

14964471

2016-09-13

Two-stroke reciprocating piston injection-ignition or compression-ignition engine