ClassID:

138630

F02B23/0675 - 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 the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic

Recent Application in this class:
#1
20250382911
2025-12-18

INTERNAL COMBUSTION ENGINE WITH HYDROGEN DIRECT INJECTION

#2
20180202348
2018-07-19

Opposed piston engine

#3
20180058315
2018-03-01

Skewed combustion chamber for opposed-piston engines

#4
20160265417
2016-09-15

Compression ignition internal combustion engine

#5
20160252014
2016-09-01

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

#6
20160195028
2016-07-07

Dual-fuel constructions for opposed-piston engines with shaped combustion chambers

#7
20150275820
2015-10-01

Diesel piston with semi-hemispherical crown

#8
20150013649
2015-01-15

Combustion chamber constructions for opposed-piston engines

#9
20140083396
2014-03-27

Combustion chamber constructions for opposed-piston engines

#10
20140076273
2014-03-20

Combustion Bowl Shape Of Direct Injection Diesel Engine For Reducing The Soot Emission

#11
20140060479
2014-03-06

Two-stage precombustion chamber for large bore gas engines

#12
20130014718
2013-01-17

Toroidal combustion chamber with side injection

#13
20120073541
2012-03-29

Fuel injection spray patterns for opposed-piston engines

#14
20120073526
2012-03-29

Piston constructions for opposed-piston engines

#15
20120037130
2012-02-16

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

#16
20110271932
2011-11-10

Combustion chamber constructions for opposed-piston engines

#17
20110146608
2011-06-23

Glow plug engine

#18
20110061365
2011-03-17

Exhaust valve for a large sized two stroke diesel engine, process for reduction on NO-formation in such an engine and such engine

#19
20100326400
2010-12-30

High Efficiency Pre-Chamber Internal Combustion Engines and Methods Thereof

#20
20090173312
2009-07-09

Internal combustion engine

#21
20070163538
2007-07-19

Light-weight compact diesel engine

#22
20060288979
2006-12-28

Method and apparatus for controlling combustion quality of a gaseous-fuelled internal combustion engine

#23
20060260585
2006-11-23

Method and apparatus for providing for high EGR gaseous-fuelled direct injection internal combustion engine

#24
20050178354
2005-08-18

Piston-cylinder combination for a combustion engine