Patents-Review.com
ClassID:

137380 ⎘

F01L2013/0052 - CPC Classification

Classification description:

Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve

Recent Application in this class:
#1
20240318582
2024-09-26

Shift gate, sliding cam system and camshaft

 #2
20240247599
2024-07-25

Valve train device

 #3
20240035398
2024-02-01

Sliding cam system

 #4
20230411059
2023-12-21

ELECTROMAGNETIC ACTUATING DEVICE AND CAMSHAFT ADJUSTER WITH AN ELECTROMAGNETIC ACTUATING DEVICE

 #5
20230323797
2023-10-12

Sliding-cam camshaft assembly for an internal combustion engine, and method for switching a sliding-cam camshaft assembly for an internal combustion engine

 #6
20230304423
2023-09-28

Sliding cam system for an internal combustion engine, comprising an integrated locking element

 #7
20220397045
2022-12-15

Single actuator shifting cam system

 #8
20220341351
2022-10-27

Shift gate, sliding cam system and camshaft

 #9
20220186640
2022-06-16

Slide cam system and motor

 #10
20220082036
2022-03-17

Electromagnetic actuator

 #11
20210372332
2021-12-02

Deceleration cylinder cut-off with sliding cam

 #12
20210332725
2021-10-28

Variable valve lift device and automobile

 #13
20210189915
2021-06-24

Assembled camshaft and method for producing an assembled camshaft

 #14
20210164369
2021-06-03

Valve drive device, in particular for an internal combustion engine of a motor vehicle, and method for operating such a valve drive device

 #15
20210003047
2021-01-07

Electromagnetic Control Device, In Particular for Adjusting Camshafts of an Internal Combustion Engine

 #16
20210003046
2021-01-07

Electromagnetic control device, in particular for adjusting camshafts of an internal combustion engine

 #17
20200355099
2020-11-12

Valvetrain for an internal combustion engine, in particular of a motor vehicle

 #18
20200347758
2020-11-05

Dynamic locking and releasing cam lobe

 #19
20200291831
2020-09-17

Valve train of an internal combustion engine

 #20
20200291829
2020-09-17

Valve train of an internal combustion engine

 #21
20200291828
2020-09-17

Valve control

 #22
20200271025
2020-08-27

Variable stroke gas exchange valve train of an internal combustion engine

 #23
20200232349
2020-07-23

Sliding element with partially hardened latching elevation

 #24
20200232348
2020-07-23

SLIDING CAMSHAFT ASSEMBLY

 #25
20200191025
2020-06-18

Valve drive for an internal combustion engine

 #26
20200149444
2020-05-14

Valve Drive for an Internal Combustion Engine

 #27
20200116050
2020-04-16

Valve train device

 #28
20200072098
2020-03-05

SLIDING CAMSHAFT ASSEMBLY

 #29
20200003090
2020-01-02

Variable valve operating device for internal combustion engine

 #30
20190338681
2019-11-07

Variable valve drive

 #31
20190331010
2019-10-31

ADJUSTABLE CAMSHAFT

 #32
20190301317
2019-10-03

Motorcycle engine

 #33
20190284967
2019-09-19

Variable valve mechanism of internal combustion engine

 #34
20190277166
2019-09-12

Variable valve drive with a sliding cam system for an internal combustion engine

 #35
20190264585
2019-08-29

Cam phaser between cam bearings

 #36
20190249618
2019-08-15

System and method for diagnosing a variable displacement engine

 #37
20190219145
2019-07-18

Sliding module of a camshaft

 #38
20190178117
2019-06-13

Variable valve device for engine

 #39
20190162086
2019-05-30

Valve drive

 #40
20190156981
2019-05-23

Electromagnetic actuating apparatus with a D-shaped coil for a two-pin actuator

 #41
20190136725
2019-05-09

Valve drive device, in particular for an internal combustion engine

 #42
20190128153
2019-05-02

Lubricating structure of variable valve train

 #43
20190120095
2019-04-25

Variable valve train

 #44
20190120089
2019-04-25

Variable valve train

 #45
20190112950
2019-04-18

Sliding cam module with a bearing element and a camshaft with a sliding cam module, as well as a cover module

 #46
20190085737
2019-03-21

Variable valve train

 #47
20190072010
2019-03-07

Multiple variable valve lift apparatus

 #48
20190072009
2019-03-07

Sliding cam system

 #49
20190048760
2019-02-14

Variable valve control device for internal combustion engines

 #50
20190043648
2019-02-07

Electromagnetic adjusting device and use of such an adjusting device

 #51
20190032524
2019-01-31

Sliding cam system and method for operating an internal combustion engine

 #52
20190032521
2019-01-31

Sliding cam system

 #53
20190010887
2019-01-10

Control device for internal combustion engine

 #54
20190010839
2019-01-10

Cam-switching device and method of controlling cam-switching device

 #55
20190003353
2019-01-03

Variable valve train

 #56
20190003352
2019-01-03

Internal combustion engine

 #57
20190003351
2019-01-03

Variable valve operating apparatus

 #58
20190003347
2019-01-03

Camshaft driven pump for a hydraulic cam phaser

 #59
20180371960
2018-12-27

Camshaft and manufacturing method therefor

 #60
20180334933
2018-11-22

Multiple variable valve lift apparatus

 #61
20180320566
2018-11-08

Valve operating system providing variable valve lift and/or variable valve timing

 #62
20180320565
2018-11-08

Method of noise filtering a sliding camshaft actuator pin position output signal

 #63
20180320561
2018-11-08

Valve train device

 #64
20180306069
2018-10-25

Control device for internal combustion engine

 #65
20180291828
2018-10-11

Method for heating a sliding camshaft actuator

 #66
20180283509
2018-10-04

SHIFTING ELEMENT FOR SHIFTING A CAM SEGMENT

 #67
20180283242
2018-10-04

Variable valve gear with braking cams

 #68
20180283236
2018-10-04

Method for retracting a sliding camshaft actuator pin

 #69
20180283227
2018-10-04

Method for retracting a partially extended sliding camshaft actuator pin

 #70
20180283225
2018-10-04

Control device for internal combustion engine

 #71
20180274407
2018-09-27

Cam journal lubricant supply mechanism for engine

 #72
20180274403
2018-09-27

Valve drive for an internal combustion engine

 #73
20180274393
2018-09-27

Internal combustion engine system

 #74
20180268977
2018-09-20

Electromagnetic actuator device and system comprising same

 #75
20180266280
2018-09-20

Variable valve control device for internal combustion engines

 #76
20180258803
2018-09-13

Sliding camshaft barrel position sensing

 #77
20180252125
2018-09-06

Internal combustion engine system

 #78
20180230869
2018-08-16

Internal combustion engine system

 #79
20180230862
2018-08-16

Valve train for an internal combustion engine

 #80
20180223704
2018-08-09

Variable valve-operating device

 #81
20180216502
2018-08-02

Valve train for a reciprocating piston internal combustion engine, and method for valve control in a reciprocating piston internal combustion engine

 #82
20180202329
2018-07-19

Internal combustion engine control system

 #83
20180179921
2018-06-28

Variable valve mechanism for engine

 #84
20180179920
2018-06-28

Variable valve mechanism for engine

 #85
20180172478
2018-06-21

Electromagnetic actuator

 #86
20180163865
2018-06-14

Apparatus for axially adjusting a switching element

 #87
20180163654
2018-06-14

Control device for internal combustion engine

 #88
20180163583
2018-06-14

Exhaust valve deactivation

 #89
20180149047
2018-05-31

Method and device for operating a drive unit, drive unit, motor vehicle

 #90
20180142582
2018-05-24

Camshaft module

 #91
20180119585
2018-05-03

Device for adjusting a camshaft of an internal combustion engine

 #92
20180100444
2018-04-12

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

 #93
20180100414
2018-04-12

Multi-step sliding cam actuators for internal combustion engine assembly

 #94
20180087887
2018-03-29

Electromagnetic actuator

 #95
20180030863
2018-02-01

Method for assembling a camshaft in a module body

 #96
20180023424
2018-01-25

Split axial cam shifting system variable valve actuation functions

 #97
20180016949
2018-01-18

Electromagnetic actuator having clamping-free tappets

 #98
20170362970
2017-12-21

Valve train for an internal combustion engine

 #99
20170362969
2017-12-21

Valve train for an internal combustion engine

 #100
20170362967
2017-12-21

Internal combustion engine

 #101
20170362964
2017-12-21

Valve drive device for an internal combustion engine

 #102
20170350727
2017-12-07

Determining a position of a movable element of a linear actuator which is intended for a motor vehicle

 #103
20170342875
2017-11-30

Sliding camshaft

 #104
20170321578
2017-11-09

Camshaft having at least one axially fixed sliding element

 #105
20170321577
2017-11-09

Camshaft having an axially guided sliding element

 #106
20170314425
2017-11-02

Camshaft comprising an axially guided sliding element

 #107
20170314424
2017-11-02

Method for installing a camshaft module

 #108
20170284241
2017-10-05

Internal combustion engine

 #109
20170276027
2017-09-28

Valve train for an internal combustion engine

 #110
20170191387
2017-07-06

Valve gear for engine

 #111
20170178779
2017-06-22

Electromagnetic actuator

 #112
20170167325
2017-06-15

Internal combustion engine comprising a shifting cam system for variable valve actuation

 #113
20170167324
2017-06-15

Sliding cam system having two-stage actuator stroke

 #114
20170159505
2017-06-08

Method for arranging a camshaft in a camshaft module

 #115
20170152773
2017-06-01

Multiple variable valve lift apparatus

 #116
20170152772
2017-06-01

Multiple variable valve lift apparatus

 #117
20170152771
2017-06-01

Valve device for internal combustion engine

 #118
20170152770
2017-06-01

Multiple variable valve lift apparatus

 #119
20170138255
2017-05-18

Cylinder head cover for a motor vehicle

 #120
20170138231
2017-05-18

Valve train having a sliding cam element

 #121
20170122224
2017-05-04

Camshaft slider control systems and methods

 #122
20170122143
2017-05-04

Variable valve mechanism

 #123
20170122141
2017-05-04

Variable valve mechanism

 #124
20170122136
2017-05-04

Variable valve mechanism

 #125
20170114676
2017-04-27

Sliding CAM recovery from short to ground on actuator low side

 #126
20170089230
2017-03-30

Continuous variable valve duration apparatus and engine provided with the same

 #127
20170081996
2017-03-23

VALVE TRAIN ASSEMBLY

 #128
20170081984
2017-03-23

Camshaft

 #129
20170023118
2017-01-26

Manufacturing method of sliding cam assembly and assembling method of cam shaft assembly including sliding cam and fixed cam

 #130
20170009612
2017-01-12

Continuous variable valve timing apparatus and engine provided with the same

 #131
20160376937
2016-12-29

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

 #132
20160369668
2016-12-22

Continuous variable valve duration system and engine provided with the same

 #133
20160363011
2016-12-15

Multiple variable valve lift apparatus

 #134
20160333803
2016-11-17

System and method for determining an oil contamination level of an engine based on a switching period of a valve lift actuator to improve engine startups

 #135
20160322146
2016-11-03

Electromagnetic actuating mechanism

 #136
20160298508
2016-10-13

Engine compression brake device for an internal combustion engine

 #137
20160298507
2016-10-13

Method and assembly for monitoring an actuator device

 #138
20160290185
2016-10-06

Adjustable camshaft

 #139
20160281553
2016-09-29

SLIDING CAM SYSTEM HAVING AN EXTENDED ENGAGEMENT REGION

 #140
20160265397
2016-09-15

Adjusting element for the axial displacement of a camshaft supported displaceable along a camshaft axis

 #141
20160265394
2016-09-15

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

 #142
20160186622
2016-06-30

Electromagnetic actuating apparatus and system for adjusting a functionality of a motor vehicle assembly

 #143
20160130990
2016-05-12

Camshaft for an internal combustion engine and use therefore

 #144
20160125990
2016-05-05

Actuator with transmission element

 #145
20160108764
2016-04-21

Method for producing a built camshaft

 #146
20160102587
2016-04-14

Cylinder head of an internal combustion engine with at least one camshaft

 #147
20160099096
2016-04-07

Electromagnetic actuating apparatus

 #148
20160090921
2016-03-31

Engine for performing CDA

 #149
20160084368
2016-03-24

Camshaft

 #150
20160071640
2016-03-10

Solenoid actuator

 #151
20160017763
2016-01-21

Valve drive train device for an internal combustion engine

 #152
20150377094
2015-12-31

Detent assembly and a method of assembling the detent assembly

 #153
20150377092
2015-12-31

Sliding cam actuator having a seal

 #154
20150330270
2015-11-19

Valve system for a multi-cylinder engine

 #155
20150322830
2015-11-12

Electromagnetic actuating apparatus

 #156
20150233271
2015-08-20

Variable lift valve train of an internal combustion engine

 #157
20150213936
2015-07-30

Bistable electromagnetic actuating apparatus, armature assembly and camshaft adjustment apparatus

 #158
20150204219
2015-07-23

Valve operating system for engine

 #159
20150194250
2015-07-09

Method for controlling an actuator

 #160
20150184554
2015-07-02

Sliding cam system of a reciprocating piston internal combustion engine with sliding grooves and guide elements arranged in an X-shape

 #161
20150136052
2015-05-21

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

 #162
20150135531
2015-05-21

Apparatus and method for the material-removing processing of an adjustable camshaft

 #163
20150122207
2015-05-07

Variable displacement solenoid control

 #164
20150090208
2015-04-02

Camshaft having adjustable cams that can be oiled by means of pressure oil

 #165
20150075468
2015-03-19

Valve gear of engine

 #166
20150075467
2015-03-19

Valve gear of engine

 #167
20150059675
2015-03-05

Multiple variable valve lift apparatus

 #168
20150047589
2015-02-19

Camshaft assembly

 #169
20150047588
2015-02-19

Internal combustion engine valve train adjustment device

 #170
20140366836
2014-12-18

Actuator for lobe switching camshaft system

 #171
20140303873
2014-10-09

Position detection for lobe switching camshaft system

 #172
20140261267
2014-09-18

Multistage variable valve lift apparatus, system and engine

 #173
20140253265
2014-09-11

Electromagnetic actuating apparatus, in particular for camshaft adjustment of an internal combustion engine

 #174
20140251250
2014-09-11

Multiple variable valve lift apparatus

 #175
20140238326
2014-08-28

Valve operating device of engine

 #176
20140238323
2014-08-28

Valve operating device of engine

 #177
20140190430
2014-07-10

Camshaft adjustment device

 #178
20140165940
2014-06-19

Multiple variable valve lift apparatus and engine provided with the same

 #179
20140165776
2014-06-19

Camshaft with an axially displaceable cam pack

 #180
20140158073
2014-06-12

Variable displacement solenoid control

 #181
20140150743
2014-06-05

Cam element for a valve drive train device

 #182
20140144401
2014-05-29

Camshaft having an axially displaceable cam pack

 #183
20140144282
2014-05-29

Camshaft with axially movable cam pack

 #184
20140137826
2014-05-22

Camshaft with an axially displaceable cam pack

 #185
20140137820
2014-05-22

Electromagnetic actuating device and camshaft adjuster

 #186
20140137819
2014-05-22

Head packaging for cylinder deactivation

 #187
20140102393
2014-04-17

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

 #188
20140102389
2014-04-17

Internal combustion engine valve drive device for a motor vehicle

 #189
20140020642
2014-01-23

Internal combustion engine valve drive arrangement

 #190
20140007828
2014-01-09

Camshaft assembly and method for producing a camshaft assembly

 #191
20130306014
2013-11-21

Internal combustion engine valve actuation control arrangement

 #192
20130276564
2013-10-24

Actuator unit with reduced actuator pin friction

 #193
20130263809
2013-10-10

Intake system for internal combustion engine

 #194
20130247711
2013-09-26

Cam part for a variable sliding cam valve drive

 #195
20130113582
2013-05-09

Electromagnetic actuating device

 #196
20130047944
2013-02-28

Internal combustion engine and valve drive for an internal combustion engine

 #197
20130042830
2013-02-21

VALVE OPERATING APPARATUS FOR INTERNAL COMBUSTION ENGINE

 #198
20130032111
2013-02-07

Displacement groove contour of sliding cam assemblies of an internal combustion reciprocating piston engine

 #199
20130025554
2013-01-31

Valve drive for internal combustion engines for actuating gas exchange valves

 #200
20130000581
2013-01-03

Actuator unit having two actuator pins

 #201
20130000442
2013-01-03

Cam unit for a constructed camshaft

 #202
20120291731
2012-11-22

Device for varying the charge-changing valve lift in an internal combustion engine

 #203
20120285408
2012-11-15

Valve train for internal combustion engines for actuating gas exchange valves

 #204
20120279467
2012-11-08

Assembled camshaft, main camshaft body and method for producing an assembled camshaft

 #205
20120260870
2012-10-18

Camshaft having a sliding piece which has different cam profiles

 #206
20120227697
2012-09-13

Valve drive for an internal combustion engine

 #207
20120227689
2012-09-13

Camshaft

 #208
20120222635
2012-09-06

Variable valve operating apparatus for internal combustion engine

 #209
20120204824
2012-08-16

Valve gear of engine

 #210
20120167845
2012-07-05

Cylinder head cover module with integrated valve train

 #211
20120152193
2012-06-21

Device for adjusting a camshaft of an internal combustion engine

 #212
20120138002
2012-06-07

Variable valve operating apparatus for internal combustion engine

 #213
20120138001
2012-06-07

Variable valve train for internal combustion engines for actuating gas exchange valves

 #214
20120138000
2012-06-07

Valve drive arrangement

 #215
20120125274
2012-05-24

Valve train for internal combustion engines for actuating gas exchange valves

 #216
20120125273
2012-05-24

Valve train for internal combustion engines for actuating gas exchange valves

 #217
20120079913
2012-04-05

Assembled shaft element, particularly assembled camshaft for valve-controlled internal combustion engines

 #218
20120055428
2012-03-08

VARIABLE VALVE ACTUATION APPARATUS FOR INTERNAL COMBUSTION ENGINE

 #219
20120037106
2012-02-16

Valve train for internal combustion engines for actuating gas exchange valves

 #220
20120037102
2012-02-16

Valve drive control device

 #221
20120031360
2012-02-09

Electromagnetic camshaft-adjuster device

 #222
20120024245
2012-02-02

Valve train of an internal combustion engine

 #223
20120016565
2012-01-19

Controller for internal combustion engine

 #224
20120006292
2012-01-12

Valve drive of an internal combustion engine

 #225
20110315105
2011-12-29

Variable valve lift apparatus

 #226
20110271918
2011-11-10

Variable valve operating apparatus for internal combustion engine

 #227
20110271917
2011-11-10

Valve operating apparatus for internal combustion engine

 #228
20110267159
2011-11-03

Electromagnetic actuator device

 #229
20110247577
2011-10-13

Valve drive of an internal combustion engine

 #230
20110240892
2011-10-06

Electromagnetic actuating device

 #231
20110226205
2011-09-22

Valve train with camshaft with an axially displaceable cam unit

 #232
20110214636
2011-09-08

Variable valve operating apparatus for internal combustion engine

 #233
20110203541
2011-08-25

Valve drive train arrangement

 #234
20110185995
2011-08-04

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

 #235
20110180029
2011-07-28

Valve drive for activation of gas exchange valves of internal combustion engines

 #236
20110180027
2011-07-28

Valve train for gas exchange valves of an internal combustion engine having a double-supported cam carriers

 #237
20110133576
2011-06-09

Electromagnetic actuating apparatus

 #238
20110132327
2011-06-09

Abnormality detection device for internal combustion engine

 #239
20110126786
2011-06-02

Variable valve operating apparatus for internal combustion engine

 #240
20110088643
2011-04-21

Valve train device

 #241
20110088642
2011-04-21

VALVE TRAIN SYSTEM OF INTERNAL COMBUSTION ENGINE

 #242
20110079191
2011-04-07

Valve drive train device

 #243
20110079188
2011-04-07

Valve drive train device

 #244
20100288218
2010-11-18

Valve drive device

 #245
20100288217
2010-11-18

Valve drive train arrangement

 #246
20100269769
2010-10-28

Valve drive for gas exchange valves of an internal combustion engine, comprising a movable cam support and twin worm gear

 #247
20100251982
2010-10-07

VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE

 #248
20100242884
2010-09-30

Valve drive arrangement

 #249
20100242873
2010-09-30

Valve drive arrangement

 #250
20100237264
2010-09-23

Valve operating mechanism

 #251
20100236506
2010-09-23

Internal combustion engine valve drive train shifting device

 #252
20100236505
2010-09-23

Valve operating device

 #253
20100224154
2010-09-09

Valve-train assembly of an internal combustion engine

 #254
20100199945
2010-08-12

Internal combustion engine valve drive train switching device

 #255
20100199935
2010-08-12

Internal combustion engine valve drive switching device

 #256
20100199934
2010-08-12

Internal combustion engine valve drive train switching arrangement

 #257
20100192885
2010-08-05

Electromagnetic actuating device

 #258
20100180850
2010-07-22

Actuating device

 #259
20100180843
2010-07-22

Internal combustion engine valve drive train switching arrangement

 #260
20100175652
2010-07-15

Valve drive for gas exchange valves of an internal combustion engine, comprising an axially movable bearing

 #261
20100139594
2010-06-10

Valve drive for activation of gas exchange valves of internal combustion engines

 #262
20100126448
2010-05-27

Valve drive of an internal combustion engine

 #263
20100126447
2010-05-27

Valve drive of an internal combustion engine

 #264
20100126445
2010-05-27

Device for camshaft adjustment in an internal combustion engine

 #265
20100108006
2010-05-06

Camshaft for a variable lift valve train of an internal combustion engine

 #266
20100024754
2010-02-04

Valve control apparatus for engine

 #267
20100000482
2010-01-07

Electromagnetic actuating apparatus

 #268
20090189724
2009-07-30

Electromagnetic actuating apparatus

 #269
20090139368
2009-06-04

SHAFT WITH FIXED COMPONENT

 #270
20090114176
2009-05-07

Valve Drive Assembly for an Internal Combustion Engine

 #271
20090071427
2009-03-19

Valve drive for an internal combustion engine

 #272
20090064952
2009-03-12

Valve drive for an internal combustion engine

 #273
20090038584
2009-02-12

Internal combustion engine

 #274
20080236526
2008-10-02

Valve actuating mechanism for an internal combustion engine, and cylinder head incorporating same

 #275
20070204819
2007-09-06

Valve engine

 #276
20070180694
2007-08-09

Arrangement and method for producing a camshaft

 #277
20070178731
2007-08-02

Valve train with cam switching for the gas exchange valves of a four-cycle internal combustion engine

 #278
20070034184
2007-02-15

Valve drive of an internal combustion engine comprising a cylinder head

 #279
20070034182
2007-02-15

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

 #280
20060102117
2006-05-18

Hydraulic valve actuator for reciprocating engine

 #281
20050011480
2005-01-20

Valve drive for an internal combustion engine