ClassID:

137472

F01L2250/02 - CPC Classification

Classification description:

Camshaft drives characterised by their transmission means the camshaft being driven by chains

Recent Application in this class:
#1
20250179946
2025-06-05

VALVE OPENING AND CLOSING TIMING CONTROL DEVICE

#2
20240392708
2024-11-28

INTERCHANGEABLE ENGINE ASSEMBLY

#3
20240392703
2024-11-28

ENGINE VALVE CONFIGURATION

#4
20240077002
2024-03-07

Variable valve device

#5
20220412231
2022-12-29

Radial engine-generator with overhead camshaft

#6
20220325643
2022-10-13

Valve timing control unit

#7
20220316417
2022-10-06

Internal combustion engine

#8
20220259991
2022-08-18

Internal combustion engine and method for operating an electromechanical camshaft adjuster

#9
20220042426
2022-02-10

VALVE TIMING ADJUSTMENT DEVICE

#10
20210396162
2021-12-23

Harmonic drive for an electromechanical camshaft adjuster

#11
20210372302
2021-12-02

DUAL ACTUATING VARIABLE CAM

#12
20210277808
2021-09-09

Hybrid phaser with hydraulic lock in an intermediate position

#13
20210270193
2021-09-02

PHASE CHANGING UNIT AND VALVE TIMING CHANGING DEVICE

#14
20210115819
2021-04-22

Electrically actuated camshaft phaser fluid escapement channel

#15
20210062687
2021-03-04

Systems and methods for a poppet valve assembly

#16
20200408116
2020-12-31

Valve timing regulation device

#17
20200408114
2020-12-31

Control screw

#18
20200386125
2020-12-10

Hydraulic camshaft adjuster

#19
20200318503
2020-10-08

Variable cam timing phaser having two central control valves

#20
20200277908
2020-09-03

System and method for improving cylinder deactivation

#21
20200173316
2020-06-04

Cam phasing systems and methods

#22
20200157976
2020-05-21

DRIVE FORCE TRANSMISSION MECHANISM

#23
20200141290
2020-05-07

CHECK VALVE AND VALVE TIMING CONTROLLER

#24
20200063674
2020-02-27

Monitoring deviations occurring in the valve drive of an internal combustion engine, and electronic engine control units for executing such methods

#25
20200063615
2020-02-27

Oil supply structure for timing chain system

#26
20190284969
2019-09-19

Engine with variable valve timing mechanism

#27
20190277168
2019-09-12

Variable valve timing control device

#28
20190277167
2019-09-12

Zero pressure unlocking system for a phaser

#29
20190264585
2019-08-29

Cam phaser between cam bearings

#30
20190242277
2019-08-08

Dual actuating variable cam

#31
20190234254
2019-08-01

Internal combustion engine with tubular valves and braking system

#32
20190186306
2019-06-20

Internal combustion engine

#33
20190170029
2019-06-06

Cam phaser

#34
20190170028
2019-06-06

Hydraulically actuated camshaft phasers for concentrically arranged camshafts

#35
20190153911
2019-05-23

Internal combustion engine and straddled vehicle having the same

#36
20190136723
2019-05-09

Valve timing adjustment device

#37
20190107016
2019-04-11

TAPERED ROLLER DRIVE FOR ELECTRIC VCT PHASER

#38
20190107015
2019-04-11

Eccentric gears with reduced bearing span

#39
20190107014
2019-04-11

Camshaft phaser using both cam torque and engine oil pressure

#40
20190107013
2019-04-11

Phase control apparatus and method for operation thereof

#41
20190101458
2019-04-04

System and method for engine oil temperature estimation

#42
20190093525
2019-03-28

Variable displacement engine including different cam lobe profiles

#43
20190085733
2019-03-21

Cam phaser

#44
20190040771
2019-02-07

Camshaft adjuster comprising a spring

#45
20190040770
2019-02-07

System and method for a variable cam timing phase control apparatus with isolator

#46
20190039116
2019-02-07

A SEGMENT FOR A CAMSHAFT AND ITS MANUFACTURE

#47
20190017466
2019-01-17

Cylinder head cover structure for engine

#48
20190017457
2019-01-17

Controller for internal combustion engine

#49
20190010887
2019-01-10

Control device for internal combustion engine

#50
20190010837
2019-01-10

Engine variable camshaft timing phaser with planetary gear assembly

#51
20190003351
2019-01-03

Variable valve operating apparatus

#52
20190003346
2019-01-03

One-way clutch type variable valve timing device and engine system having the same

#53
20180371964
2018-12-27

Valve opening and closing timing control apparatus

#54
20180363520
2018-12-20

Variable duration valve system

#55
20180363512
2018-12-20

Valve timing change device

#56
20180340465
2018-11-29

Control apparatus and control method for variable valve timing mechanism

#57
20180334931
2018-11-22

Cam phaser having a retention feature for aiding assembly

#58
20180328239
2018-11-15

INTERNAL-COMBUSTION ENGINE VALVE TIMING CONTROL DEVICE

#59
20180320771
2018-11-08

Harmonic drive

#60
20180320564
2018-11-08

Engine variable camshaft timing phaser with planetary gear set

#61
20180306070
2018-10-25

Valve opening and closing timing control apparatus

#62
20180298815
2018-10-18

Method for cleaning continuously variable valve timing system

#63
20180291824
2018-10-11

System and method for intake manifold pressure control

#64
20180283232
2018-10-04

Switched cushion stop

#65
20180274398
2018-09-27

Variable valve timing control device

#66
20180266285
2018-09-20

System and method for a phase control apparatus of a cam timing system

#67
20180258804
2018-09-13

Oil supply control device of engine

#68
20180252125
2018-09-06

Internal combustion engine system

#69
20180238244
2018-08-23

Control unit for internal combustion engine

#70
20180238201
2018-08-23

Variable valve timing control device

#71
20180231116
2018-08-16

Drive unit for straddled vehicle

#72
20180230918
2018-08-16

Control device for internal combustion engine

#73
20180216503
2018-08-02

TRAVEL STOP FOR PLANETARY GEARS OF AN ELECTRIC PHASER

#74
20180202513
2018-07-19

Internal combustion piston engine for aviation

#75
20180202328
2018-07-19

Cam phaser having a retention feature for aiding assembly

#76
20180187578
2018-07-05

Control valve for a camshaft adjuster

#77
20180171835
2018-06-21

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

#78
20180156080
2018-06-07

Valve opening/closing timing control device

#79
20180135474
2018-05-17

Valve opening/closing timing control apparatus

#80
20180135473
2018-05-17

Valve opening/closing timing control apparatus

#81
20180135472
2018-05-17

Valve opening/closing timing control apparatus

#82
20180135471
2018-05-17

Valve opening/closing timing control apparatus

#83
20180135469
2018-05-17

Valve timing control device for internal combustion engine

#84
20180106168
2018-04-19

Composite structure and valve timing adjustment device having the same

#85
20180100453
2018-04-12

Method for controlling of valve timing of continuous variable valve duration engine

#86
20180087411
2018-03-29

Electric cam phasing system including an activatable lock

#87
20180073655
2018-03-15

Valve opening and closing timing control apparatus

#88
20180073402
2018-03-15

Multi-mode variable camshaft timing device with two locking positions

#89
20180066549
2018-03-08

Motor drive device for controlling valve timing of internal combustion engine

#90
20180058270
2018-03-01

Overhead valve actuation mechanism for engine

#91
20180058269
2018-03-01

Overhead valve actuation mechanism for engine

#92
20180045088
2018-02-15

Variable valve system

#93
20170370253
2017-12-28

Valve timing control device for internal combustion engine

#94
20170356375
2017-12-14

System and method for improving cylinder deactivation

#95
20170356374
2017-12-14

System and method for mitigating cylinder deactivation degradation

#96
20170356373
2017-12-14

System and method for operating an engine oil pump

#97
20170356372
2017-12-14

System and method for intake manifold pressure control

#98
20170342870
2017-11-30

Control valve

#99
20170314426
2017-11-02

Output element of a camshaft adjuster having a partial structuring on the contact surface to the camshaft

#100
20170307100
2017-10-26

Electromagnetic valve and fixing structure

#101
20170292415
2017-10-12

Valve timing control device for internal combustion engine

#102
20170276029
2017-09-28

Internal combustion engine

#103
20170268437
2017-09-21

System and method for controlling valve timing of continuous variable valve duration engine

#104
20170268388
2017-09-21

Valve opening and closing timing control apparatus

#105
20170260884
2017-09-14

Cam phaser

#106
20170254234
2017-09-07

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

#107
20170226902
2017-08-10

Control valve for valve timing adjusting device of internal combustion engine

#108
20170218881
2017-08-03

Engine and straddled vehicle

#109
20170211432
2017-07-27

Apparatus and method of adjusting valve timing for internal combustion engine

#110
20170211431
2017-07-27

Oil supply device for engine

#111
20170204749
2017-07-20

Oil drain structure of valve timing adjusting device for internal combustion engine

#112
20170198612
2017-07-13

Valve opening/closing timing control apparatus

#113
20170191386
2017-07-06

Method and system for variable cam timing device

#114
20170183986
2017-06-29

Locking structure of valve timing adjustment apparatus for internal combustion engine

#115
20170183985
2017-06-29

Valve timing adjustment apparatus for internal combustion engine

#116
20170175594
2017-06-22

Method and system for variable cam timing device

#117
20170175593
2017-06-22

Valve opening and closing timing control apparatus

#118
20170167410
2017-06-15

Method of controlling continuously variable valve timing system for limp-home

#119
20170167408
2017-06-15

System and method for controlling valve timing of continuous variable valve duration engine

#120
20170167406
2017-06-15

System and method for controlling valve timing of continuous variable valve duration engine

#121
20170167399
2017-06-15

Method for controlling of valve timing of continuous variable valve duration engine

#122
20170145872
2017-05-25

Valve opening/closing timing control apparatus

#123
20170122139
2017-05-04

Valve opening and closing timing control apparatus

#124
20170122138
2017-05-04

Valve opening and closing timing control apparatus

#125
20170114678
2017-04-27

Rotary valve engine system

#126
20170074162
2017-03-16

Combined-cycle combustion control type three-cylinder engine and method for controlling the same

#127
20170074126
2017-03-16

Valve timing controller

#128
20170058727
2017-03-02

Multi-mode variable cam timing phaser

#129
20170058725
2017-03-02

Installing structure for electric variable valve timing apparatus

#130
20170037749
2017-02-09

Camshaft phaser using one-way slipper clutches

#131
20170037747
2017-02-09

Variable valve actuation apparatus for internal combustion engine

#132
20170037744
2017-02-09

Variable tensioning for engine camshaft drive

#133
20170022854
2017-01-26

Control valve for valve timing control device and valve timing control device for internal combustion engine

#134
20170022852
2017-01-26

CVVT apparatus for engine

#135
20170002749
2017-01-05

Valve opening and closing timing control device

#136
20170002696
2017-01-05

Rotor assembly with inner diameter divider pattern

#137
20160376937
2016-12-29

Rocker arm assembly and method of forming retention elements in a rocker arm

#138
20160359434
2016-12-08

Motor driver of motor for valve timing control of internal combustion engine

#139
20160356185
2016-12-08

Arrangement for reducing torsional loading of a camshaft

#140
20160348547
2016-12-01

Tapered roller drive for electric VCT phaser

#141
20160348544
2016-12-01

Method and system for variable cam timing device

#142
20160348542
2016-12-01

Flow passage partition structure and fluid control valve

#143
20160341079
2016-11-24

Device for controlling valve timing of engine

#144
20160333749
2016-11-17

Camshaft adjuster and method for operating a camshaft adjuster

#145
20160326917
2016-11-10

Valve timing control device for internal combustion engine

#146
20160290182
2016-10-06

Cam cap

#147
20160265394
2016-09-15

Rocker arm assembly for use in a valvetrain of a cylinder head of an internal combustion engine

#148
20160252189
2016-09-01

Electromagnetic valve and fixing structure

#149
20160251985
2016-09-01

Camshaft adjuster

#150
20160245131
2016-08-25

Cam shaft phaser with mid-position and retard lock position

#151
20160222840
2016-08-04

Modular rotary valve apparatus

#152
20160215662
2016-07-28

Motor control apparatus

#153
20160201524
2016-07-14

Bridge assembly having motion-limited valve

#154
20160186618
2016-06-30

Positional control of actuator shaft for e-phaser and method of calibration

#155
20160146070
2016-05-26

Control device for internal combustion engine

#156
20160108770
2016-04-21

Valve opening/closing timing control device

#157
20160108765
2016-04-21

Cam carrier module for vehicles

#158
20160076436
2016-03-17

Variable combustion system for an internal combustion engine

#159
20160069223
2016-03-10

Variable valve timing control apparatus of internal combustion engine

#160
20160061064
2016-03-03

Valve timing control apparatus

#161
20160061063
2016-03-03

Valve timing controller

#162
20160032795
2016-02-04

Valve timing control device for internal combustion engine

#163
20160024977
2016-01-28

Valve timing control apparatus

#164
20160017767
2016-01-21

Valve opening/closing timing control device

#165
20160010516
2016-01-14

Valve timing control apparatus

#166
20150377084
2015-12-31

Method and apparatus for controlling a phase varying apparatus

#167
20150300213
2015-10-22

Hydraulic valve for cam phaser

#168
20150247429
2015-09-03

Valve timing control device and method of assembly thereof

#169
20150211424
2015-07-30

Control device and control method for internal combustion engine

#170
20150167505
2015-06-18

Centering slot for internal combustion engine

#171
20150075461
2015-03-19

Variable valve actuation apparatus of internal combustion engine

#172
20150053158
2015-02-26

Variable valve timing control apparatus

#173
20150008774
2015-01-08

Valve-timing control apparatus for internal combustion engine and power-feeding mechanism used in valve-timing control apparatus

#174
20140366825
2014-12-18

Variable valve timing control device of internal combustion engine

#175
20140366824
2014-12-18

Valve timing adjustment apparatus

#176
20140311432
2014-10-23

Valve opening-closing timing control device and method for attaching front member thereof

#177
20140290606
2014-10-02

Valve timing control device for internal combustion engine

#178
20140230762
2014-08-21

Control device for internal combustion engine

#179
20140216377
2014-08-07

Valve timing adjustment system

#180
20140202407
2014-07-24

Starting device of spark-ignition multi-cylinder engine

#181
20140172268
2014-06-19

Stepped idle return for multiair equipped engines with high aeration

#182
20140150744
2014-06-05

Valve timing adjusting system

#183
20140083384
2014-03-27

Centering slot for internal combustion engine

#184
20140069363
2014-03-13

Variable valve timing device

#185
20140069359
2014-03-13

Variable valve timing device

#186
20140034404
2014-02-06

Lubricated engine compensator assembly and motorcycle having the same

#187
20130306011
2013-11-21

Dual phasers assembled concentrically on a concentric camshaft system

#188
20130285590
2013-10-31

Reference angle detecting device

#189
20130213327
2013-08-22

Valve timing control apparatus

#190
20130206087
2013-08-15

VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

#191
20130180487
2013-07-18

Engine drive system

#192
20130146005
2013-06-13

Valve timing control apparatus of internal combustion engine

#193
20130125845
2013-05-23

Lock pin for variable valve timing mechanism

#194
20130118001
2013-05-16

Flexible computer control for an internal combustion engine with hemispherical combustion chambers

#195
20130074791
2013-03-28

Controller for variable valve actuation device

#196
20130068184
2013-03-21

Valve timing controller

#197
20130068183
2013-03-21

Hydraulic control unit for use in valve timing control apparatus and controller for hydraulic control unit

#198
20130055978
2013-03-07

Camshaft adjuster

#199
20130019829
2013-01-24

Camshaft adjuster

#200
20120312261
2012-12-13

VARIABLE VALVE TIMING APPARATUS

#201
20120279466
2012-11-08

Camshaft adjuster with device for emergency operation

#202
20120260870
2012-10-18

Camshaft having a sliding piece which has different cam profiles

#203
20120222635
2012-09-06

Variable valve operating apparatus for internal combustion engine

#204
20120180740
2012-07-19

Valve timing control device

#205
20120160197
2012-06-28

Variable valve device for an internal combustion engine

#206
20120143463
2012-06-07

Startability improving method for GDI engine using electric CVVT control

#207
20120137994
2012-06-07

ROLLERIZED CAMSHAFT SUPPORT FOR TYPE 1 DIRECT ACTING VALVETRAIN AND INTERNAL COMBUSTION ENGINE EMBODYING SAME

#208
20120055429
2012-03-08

Variable valve timing control apparatus

#209
20120024249
2012-02-02

HYDRAULIC BACKLASH COMPENSATING ELEMENT

#210
20110315101
2011-12-29

Method and device for improving charged engines

#211
20110303171
2011-12-15

VALVE TIMING CONTROLLER

#212
20110303169
2011-12-15

Flow rate control valve

#213
20110271917
2011-11-10

Valve operating apparatus for internal combustion engine

#214
20110259289
2011-10-27

Valve timing control apparatus

#215
20110253087
2011-10-20

Valve timing control apparatus

#216
20110067658
2011-03-24

VALVE TIMING CONTROL APPARATUS

#217
20100212616
2010-08-26

Camshaft phasing system

#218
20080173128
2008-07-24

Shaft with functional bodies such as camshafts for internal combustion engines, method of producing them and engines equipped therewith

#219
20060225679
2006-10-12

Adjustable valve timing system

#220
20060185471
2006-08-24

Camshaft assembly

#221
18236834
2024-05-28

Adjustable reverse rotation camshaft drive mechanism

#222
18064779
2024-04-30

Chain or belt drive with multiple non-prevalent order sprockets or pulleys

#223
16439780
2020-07-14

Camshaft connector of an electric-hydraulic camshaft phaser assembly