ClassID:

137206

F01L1/34413 - CPC Classification

Classification description:

Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using composite camshafts, e.g. with cams being able to move relative to the camshaft

Recent Application in this class:
#1
20250207517
2025-06-26

OIL PASSAGE CONTROL VALVE AND VALVE TIMING VARYING DEVICE

#2
20240247599
2024-07-25

Valve train device

#3
20240209759
2024-06-27

Actuation system for an internal combustion engine

#4
20200347758
2020-11-05

Dynamic locking and releasing cam lobe

#5
20200308997
2020-10-01

VALVE TRAIN FOR AN INTERNAL COMBUSTION ENGINE

#6
20200200053
2020-06-25

Camshaft phaser arrangement for a concentric camshaft assembly

#7
20200200052
2020-06-25

Oldham flexplate for concentric camshafts controlled by variable camshaft timing

#8
20190368389
2019-12-05

Coupling for a camshaft phaser arrangement for a concentric camshaft assembly

#9
20190368388
2019-12-05

Timing wheel for a camshaft phaser arrangement for a concentric camshaft assembly

#10
20190338685
2019-11-07

Variable valve drive

#11
20190338681
2019-11-07

Variable valve drive

#12
20190072010
2019-03-07

Multiple variable valve lift apparatus

#13
20190040768
2019-02-07

CAMSHAFT ASSEMBLY

#14
20190010837
2019-01-10

Engine variable camshaft timing phaser with planetary gear assembly

#15
20180371963
2018-12-27

Cam phasing assemblies with electromechanical locking control and method thereof

#16
20180274400
2018-09-27

Cam shaft for a cam shaft arrangement

#17
20180238200
2018-08-23

Adjustable camshaft having a phase actuator

#18
20180171835
2018-06-21

Hydraulic pressure control valve and internal-combustion engine valve timing control apparatus

#19
20180171834
2018-06-21

Continuous variable valve duration apparatus and engine provided with the same

#20
20180003087
2018-01-04

Method for producing a cam profile of a cam pack of a camshaft

#21
20170342875
2017-11-30

Sliding camshaft

#22
20170335779
2017-11-23

Lean-burn engine

#23
20170314428
2017-11-02

VALVE TRAIN FOR ACTUATING GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE

#24
20170314427
2017-11-02

METHOD FOR PRODUCING AN ADJUSTABLE CAMSHAFT AND ADJUSTABLE CAMSHAFT

#25
20170284314
2017-10-05

Continuous variable valve timing apparatus and engine provided with the same

#26
20170268390
2017-09-21

Composite profile evaluating method and composite profile measuring device

#27
20170254234
2017-09-07

Camshaft adjusting device for adjusting a position of at least one cam segment

#28
20170248045
2017-08-31

Engine variable camshaft timing phaser with planetary gear assembly

#29
20170204751
2017-07-20

Valve control system having an adjustable camshaft

#30
20170159791
2017-06-08

Adjustable camshaft

#31
20170159513
2017-06-08

Adjustable Camshaft

#32
20170159512
2017-06-08

Adjustable camshaft

#33
20170152773
2017-06-01

Multiple variable valve lift apparatus

#34
20170152772
2017-06-01

Multiple variable valve lift apparatus

#35
20170122143
2017-05-04

Variable valve mechanism

#36
20170122142
2017-05-04

Camshaft for the valve drive of an internal combustion engine with a variable valve opening duration

#37
20170122141
2017-05-04

Variable valve mechanism

#38
20170107867
2017-04-20

Camshaft

#39
20170030229
2017-02-02

Adjustable camshaft

#40
20160290185
2016-10-06

Adjustable camshaft

#41
20160237863
2016-08-18

ARRANGEMENT FOR AXIALLY SHIFTING A CAM ASSEMBLY ON A CAM SHAFT

#42
20160160697
2016-06-09

Continuous variable valve duration apparatus and engine provided with the same

#43
20160090921
2016-03-31

Engine for performing CDA

#44
20160090877
2016-03-31

Continuous variable valve duration apparatus and engine provided with the same

#45
20150330266
2015-11-19

Variable valve device

#46
20150233272
2015-08-20

Bi-directional control groove design for engine rotation reversal on engine with sliding camshaft

#47
20150226160
2015-08-13

Internal combustion engine

#48
20150176442
2015-06-25

CAMSHAFT-IN-CAMSHAFT APPARATUS OF VARIABLE VALVE DURATION SYSTEM

#49
20150136052
2015-05-21

Method for operating a valve train of an internal combustion engine and corresponding valve train

#50
20150135864
2015-05-21

Camshaft unit

#51
20150122208
2015-05-07

Camshaft unit

#52
20150101552
2015-04-16

Connecting structure of multiple variable valve lift apparatus

#53
20150068478
2015-03-12

Camshaft adjuster

#54
20150047588
2015-02-19

Internal combustion engine valve train adjustment device

#55
20140261265
2014-09-18

LOW FRICTION CAMSHAFT WITH ELECTRIC PHASER

#56
20140102393
2014-04-17

Valve drive arrangement for actuating gas exchange valves of an internal combustion engine

#57
20140102391
2014-04-17

SLIDING CAM ARRANGEMENT FOR VARIABLE ACTUATING GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE

#58
20130284132
2013-10-31

Variable valve actuating apparatus for internal combustion engine

#59
20130220069
2013-08-29

Adjustable camshaft

#60
20130152888
2013-06-20

Engine that actively varies compression expansion ratio

#61
20120285405
2012-11-15

Engine assembly including camshaft actuator

#62
20120260873
2012-10-18

Camshaft with variable valve opening period

#63
20120192820
2012-08-02

Camshaft arrangement

#64
20120145103
2012-06-14

Engine assembly including camshaft with independent cam phasing

#65
20120145101
2012-06-14

VARIABLE VALVE DEVICE FOR AN INTERNAL COMBUSTION ENGINE

#66
20120037106
2012-02-16

Valve train for internal combustion engines for actuating gas exchange valves

#67
20110203541
2011-08-25

Valve drive train arrangement

#68
20110185995
2011-08-04

Splined-shaft connection and valve timing mechanism with a splined-shaft connection between a camshaft and displaceable cam carriers

#69
20110107988
2011-05-12

Variable valve device for internal combustion engine

#70
20110041788
2011-02-24

Camshaft adjusting system

#71
20100282193
2010-11-11

Single cam phaser camshaft

#72
20100242472
2010-09-30

Piston engine

#73
20100223771
2010-09-09

Concentric camshaft and method of assembly

#74
20100212625
2010-08-26

Valve train of a reciprocating piston combustion engine

#75
20100212614
2010-08-26

Internal combustion engine with variable valve gear

#76
20100212144
2010-08-26

Concentric camshaft and method of assembly

#77
20100088890
2010-04-15

Double ballize camshaft assembly process

#78
20100088889
2010-04-15

Ballize in tension camshaft assembly process

#79
20100012060
2010-01-21

Split Lobe Design of Concentric Camshaft

#80
20090178634
2009-07-16

Engine with variable valve actuating mechanism

#81
20090173297
2009-07-09

Variable valve timing device

#82
20090107431
2009-04-30

Variable Valve System For Internal Combustion Engine

#83
20080215228
2008-09-04

Variable Valve Drive For a Reciprocating Internal Combustion Engine

#84
20080196681
2008-08-21

MOUNTING OF AN SCP CAMSHAFT ON AN ENGINE

#85
20080141963
2008-06-19

Camshaft operating unit

#86
20080017151
2008-01-24

Valve driving device for multi-cylinder internal combustion engine

#87
20070272183
2007-11-29

Camshaft

#88
20070224861
2007-09-27

Camshaft of automotive combustion engines in particular

#89
20070137598
2007-06-21

Camshaft

#90
20070039172
2007-02-22

Method for manufacturing a camshaft

#91
20070034182
2007-02-15

Valve train of an internal combustion engine comprising at least one camshaft

#92
20060266319
2006-11-30

Variable valve timing system

#93
20060207538
2006-09-21

Camshaft to phaser coupling

#94
20060207529
2006-09-21

Camshaft assembly

#95
20060185471
2006-08-24

Camshaft assembly

#96
20060157008
2006-07-20

Shaft mechanism, in particular camshaft of automotive engines

#97
20060060159
2006-03-23

Dynamic valve timing adjustment mechanism for internal combustion engines

#98
20050279302
2005-12-22

Engine with variable valve timing

#99
18536301
2024-10-08

Concentric camshaft for variable valve timing and method of manufacturing by metal additive process and disintegrable barrier to preserve interstitial void spaces and method of removal

#100
16193140
2020-03-17

Coupler for a camshaft phaser arrangement for a concentric camshaft assembly

#101
16193122
2020-04-07

Coupling for a camshaft phaser arrangement for a concentric camshaft assembly