ClassID:

138614

F02B23/0627 - CPC Classification

Classification description:

Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl

Recent Application in this class:
#1
20250297569
2025-09-25

PISTON WITH COMBUSTION STABILIZING BOWL

#2
20220220921
2022-07-14

PASSIVE PRECHAMBER LEAN BURN COMBUSTION SYSTEM

#3
20210164428
2021-06-03

Fuel system for reducing fuel targeting errors and engine operating method

#4
20200291844
2020-09-17

Two-Cycle Diesel Engine Configured for Operation with High Temperature Combustion Chamber Surfaces

#5
20200063701
2020-02-27

Fuel system for reducing fuel targeting errors and engine operating method

#6
20200018220
2020-01-16

Two-cycle diesel engine configured for operation with high temperature combustion chamber surfaces

#7
20190376442
2019-12-12

DIESEL ENGINE

#8
20190120117
2019-04-25

Two-cycle diesel engine configured for operation with high temperature combustion chamber surfaces

#9
20190093598
2019-03-28

Internal combustion engine piston with chamber

#10
20190061072
2019-02-28

Fuel injector bore repair

#11
20190003372
2019-01-03

Piston crown for an internal combustion engine

#12
20180135507
2018-05-17

Power cylinder apparatus for reducing unburnt hydrocarbon emissions

#13
20180023454
2018-01-25

Piston

#14
20160298529
2016-10-13

Ducted combustion systems utilizing duct structures

#15
20160252067
2016-09-01

Opposed piston three nozzle piston bowl design

#16
20150308371
2015-10-29

Piston for a cylinder of a combustion engine

#17
20150260081
2015-09-17

Turbo vortex piston

#18
20150107543
2015-04-23

Piston of an internal combustion engine

#19
20140048036
2014-02-20

Internal combustion engine

#20
20130199493
2013-08-08

Piston positioned for reciprocal movement in a combustion engine cylinder

#21
20130047950
2013-02-28

Piston positioned for reciprocal movement in a combustion engine cylinder

#22
20120204714
2012-08-16

Method for making a piston with radical producing micro chambers and piston made thereby

#23
20120186555
2012-07-26

Ducted combustion chamber for direct injection engines and method

#24
20110253095
2011-10-20

Piston bowl with spray jet targets

#25
20110146613
2011-06-23

Piston for internal combustion engine

#26
20110083638
2011-04-14

Combustion chamber for fuel injected engines

#27
20100242904
2010-09-30

Internal combustion engine

#28
20050081819
2005-04-21

Piston structure of engine

#29
15286286
2018-03-06

Piston fluid passages for reduced soot