ClassID:

138612

F02B23/0621 - 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 Squish flow

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

PISTON WITH COMBUSTION STABILIZING BOWL

#2
20200232380
2020-07-23

Compression ignition engine

#3
20200182190
2020-06-11

PISTON COMBUSTION CHAMBER STRUCTURE OF ENGINE

#4
20200158045
2020-05-21

Spark-ignited internal combustion engine

#5
20200158006
2020-05-21

Combustion chamber structure for engine

#6
20200149465
2020-05-14

Methods and systems for a piston

#7
20190242294
2019-08-08

Diesel engine and method for fuel distribution and combustion in combustion chamber of diesel engine

#8
20190218958
2019-07-18

Compression self-ignited internal combustion engine

#9
20190203634
2019-07-04

Internal combustion engine

#10
20190186341
2019-06-20

Piston bowl for improved combustion stability

#11
20180094569
2018-04-05

Piston and cylinder features for enhanced squish flow

#12
20180058315
2018-03-01

Skewed combustion chamber for opposed-piston engines

#13
20170159549
2017-06-08

Combustion Chamber Structure for Diesel Engine

#14
20170030262
2017-02-02

Skewed combustion chamber for opposed-piston engines

#15
20160290224
2016-10-06

Asymmetrically-shaped combustion chamber for opposed-piston engines

#16
20160252014
2016-09-01

Opposed-piston engine having a single crankshaft coupled to the opposed pistons by linkages with pivoted rocker arms

#17
20160138520
2016-05-19

Engine piston

#18
20150308327
2015-10-29

Combustion chamber of direct injection diesel engine having inducers

#19
20150128899
2015-05-14

Piston having combustion bowl shaped to balance combustion efficiency and emission properties

#20
20150122227
2015-05-07

Combustion chamber construction with dual mixing regions for opposed-piston engines

#21
20150107543
2015-04-23

Piston of an internal combustion engine

#22
20150013649
2015-01-15

Combustion chamber constructions for opposed-piston engines

#23
20140331957
2014-11-13

Combustion chamber structure for internal combustion engine

#24
20140014063
2014-01-16

Swirl-conserving combustion chamber construction for opposed-piston engines

#25
20130239925
2013-09-19

Piston having combustion bowl shaped to balance combustion efficiency and emission properties

#26
20130213342
2013-08-22

Piston crown bowls defining combustion chamber constructions in opposed-piston engines

#27
20130199498
2013-08-08

Self-igniting internal combustion engine having piston recesses having swirl steps

#28
20120090572
2012-04-19

Compression ignition engine and method for controlling same

#29
20120073541
2012-03-29

Fuel injection spray patterns for opposed-piston engines

#30
20120073526
2012-03-29

Piston constructions for opposed-piston engines

#31
20120037130
2012-02-16

Opposed-piston engine having a single crankshaft coupled to the opposed pistons by linkages with pivoted rocker arms

#32
20120037118
2012-02-16

Combustion chamber for diesel engines with inclined engine valves

#33
20110271932
2011-11-10

Combustion chamber constructions for opposed-piston engines

#34
20110253096
2011-10-20

Piston having combustion bowl shaped to balance combustion efficiency and emission properties

#35
20110253094
2011-10-20

Piston bowl with spray jet targets

#36
20110146613
2011-06-23

Piston for internal combustion engine

#37
20100288227
2010-11-18

Compression ignition engine and method for controlling same

#38
20100258078
2010-10-14

Direct fuel-injection engine

#39
20100108022
2010-05-06

Direct fuel-injected engine

#40
20100006061
2010-01-14

Direct fuel injection diesel engine

#41
20090314253
2009-12-24

Direct fuel injection diesel engine

#42
20090217905
2009-09-03

DIRECT INJECTION TYPE OF DIESEL ENGINE

#43
20090188481
2009-07-30

SQUISH-INDUCED MIXING-INTENSIFIED LOW EMISSIONS COMBUSTION PISTON FOR INTERNAL COMBUSTION ENGINES

#44
20080177457
2008-07-24

Diesel engine

#45
20070199538
2007-08-30

Shape of combustion chamber for direct-injection diesel engine

#46
20070193556
2007-08-23

Directly injecting internal combustion engine

#47
20070169741
2007-07-26

Internal combustion engine and operating method therefor

#48
20070157912
2007-07-12

Process for use with dual-fuel systems

#49
20070151541
2007-07-05

Combustion bowl in the crown of a piston for a diesel engine

#50
20070125321
2007-06-07

Process for use with dual-fuel systems

#51
20060185642
2006-08-24

Combustion engine chamber

#52
20060150955
2006-07-13

Low emission fuel efficient diesel locomotive engine including a piston having a toroidal surface

#53
20060070603
2006-04-06

Internal combustion engine producing low emissions

#54
20060011179
2006-01-19

Method of regulating an internal combustion engine

#55
20050279321
2005-12-22

Method of injecting a gaseous fuel into an internal combustion engine

#56
20050229897
2005-10-20

Internal combustion engine with auto-ignition

#57
20050217639
2005-10-06

Glow ring ignition assist for internal combustion engine

#58
20050188944
2005-09-01

Optimized low emission two-stroke internal combustion diesel engine

#59
20050172929
2005-08-11

Dual zone combustion chamber

#60
20050166890
2005-08-04

Piston/combustion chamber configurations for enhanced ci engine performace

#61
20050120995
2005-06-09

Fuel injection valve for diesel engine