Patents-Review.com
ClassID:

137179 ⎘

F01L1/24 - CPC Classification

Classification description:

Valve-gear or valve arrangements, e.g. lift-valve gear; Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically

Sub-classes:
Recent Application in this class:
#1
20250389211
2025-12-25

VALVE ACTUATION SYSTEM COMPRISING A DISCRETE LOST MOTION DEVICE

 #2
20250305439
2025-10-02

EXHAUST SYSTEM

 #3
20250129729
2025-04-24

ROCKER ARM ASSEMBLY

 #4
20250109698
2025-04-03

VARIABLE VALVE DEVICE

 #5
20250003357
2025-01-02

System for synchronizing switching

 #6
20240200476
2024-06-20

Valve actuation system comprising rocker assemblies with one-way coupling therebetween

 #7
20240125253
2024-04-18

VALVE ACTUATION SYSTEM COMPRISING A DISCRETE LOST MOTION DEVICE

 #8
20240052762
2024-02-15

Combined valve actuating devices with specialized actuating cams for hydraulic lash self-adjustment

 #9
20230235686
2023-07-27

Rocker arm assembly with valve bridge

 #10
20230212965
2023-07-06

Engine braking system

 #11
20230175420
2023-06-08

Lash adjuster with hydraulic lash assembly and mechanical lash assembly

 #12
20230167754
2023-06-01

Rocker arm assembly

 #13
20230107310
2023-04-06

Engine braking castellation mechanism

 #14
20220333505
2022-10-20

ROLLER HYDRAULIC VALVE LIFTER BEARING

 #15
20220268182
2022-08-25

Valvetrain with variable valve actuation

 #16
20220074320
2022-03-10

Variable valve driving mechanism of engine, and engine

 #17
20220034266
2022-02-03

Self-contained compression brake control module for compression-release brake system of an internal combustion engine

 #18
20220025825
2022-01-27

Valve train system for extended duration intake valve opening

 #19
20210388741
2021-12-16

Internal combustion engine for a motor vehicle, having a control unit for aligning a camshaft and method for operating such an internal combustion engine

 #20
20210372298
2021-12-02

Auxiliary framework for electrically latched rocker arms

 #21
20210372297
2021-12-02

Rocker arm assembly with valve bridge

 #22
20210362214
2021-11-25

FORMED OUTER ARM FOR ROCKER ARM ASSEMBLY

 #23
20210324770
2021-10-21

Type II valvetrains to enable variable valve actuation

 #24
20210310380
2021-10-07

Hybrid variable valve actuation system

 #25
20210270153
2021-09-02

HYDRAULIC ASSISTED ENGINE BRAKE MECHANISM FOR VALVE TRAIN

 #26
20210189921
2021-06-24

DYNAMIC SKIP FIRE CONTROL WITH A SINGLE CONTROL VALVE FOR MULTIPLE CYLINDERS

 #27
20210156319
2021-05-27

Self-contained compression brake control module for compression-release brake system of an internal combustion engine

 #28
20210131318
2021-05-06

Balanced bridge bleeder brake with HLA

 #29
20210131315
2021-05-06

Rocker based bleeder engine brake

 #30
20210079816
2021-03-18

Lash adjuster with ball plunger retaining feature and method of making same

 #31
20210040870
2021-02-11

Two step rocker arm having side by side roller configuration

 #32
20210010395
2021-01-14

Rocker arm with an oil trough

 #33
20210010394
2021-01-14

Switching roller finger follower for valvetrain

 #34
20200355098
2020-11-12

Charge changing control device, reciprocating engine and method for operating a charge changing control device

 #35
20200347754
2020-11-05

Cam actuated gas admission valve with electro-hydraulic trim control

 #36
20200325803
2020-10-15

Engine braking castellation mechanism

 #37
20200224559
2020-07-16

Rocker arm assembly

 #38
20200191023
2020-06-18

Ball engine brake mechanism

 #39
20200182103
2020-06-11

Valve actuation system comprising at least two rocker arms and a one-way coupling mechanism

 #40
20200182100
2020-06-11

Solenoid valve control for noise reduction in a variable valve lift system

 #41
20200182097
2020-06-11

Valve actuation system comprising two rocker arms and a collapsing mechanism

 #42
20200131946
2020-04-30

Rocker arm for an internal combustion engine

 #43
20200131945
2020-04-30

Rocker arm having oil release valve that operates as an accumulator

 #44
20200095910
2020-03-26

Rocker arm assembly for engine braking

 #45
20200095903
2020-03-26

ENGINE CONTROL DEVICE

 #46
20200088072
2020-03-19

Control system and control method for hydraulic variable valve

 #47
20200003089
2020-01-02

Oil flow system for engine cylinder deactivation

 #48
20190316496
2019-10-17

Valve lash detection and analysis

 #49
20190264585
2019-08-29

Cam phaser between cam bearings

 #50
20190257227
2019-08-22

Inductive coupling to rocker arm assemblies

 #51
20190257219
2019-08-22

VALVE TRAIN FOR AN INTERNAL COMBUSTION ENGINE

 #52
20190242276
2019-08-08

Hydraulic lash adjuster assembly sleeves

 #53
20190234247
2019-08-01

Control based on magnetic circuit feedback

 #54
20190186304
2019-06-20

Two step rocker arm having side by side roller configuration

 #55
20190178113
2019-06-13

Modular rocker arm

 #56
20190145291
2019-05-16

Rocker arm assembly for engine braking

 #57
20190145289
2019-05-16

Lash adjustment in lost motion engine systems

 #58
20190145288
2019-05-16

Variable valve actuation system for type II valverain using lost motion and reset

 #59
20190093525
2019-03-28

Variable displacement engine including different cam lobe profiles

 #60
20190063273
2019-02-28

Valvetrain with variable valve actuation

 #61
20190063269
2019-02-28

Solenoid valve control for noise reduction in a variable valve lift system

 #62
20190048762
2019-02-14

Variable valve control system having common valve and engine system having the same

 #63
20190010835
2019-01-10

Rocker arm assembly

 #64
20180363513
2018-12-20

Engine valve lifter having anti-rotation plug

 #65
20180355770
2018-12-13

Oil flow system for engine cylinder deactivation

 #66
20180355768
2018-12-13

Hydraulic support element with a ring filter

 #67
20180355767
2018-12-13

Camshaft adjuster

 #68
20180334930
2018-11-22

Common rocker arm for hydraulic lash adjuster and non-hydraulic lash adjuster

 #69
20180298791
2018-10-18

Pressure medium supply to valve train elements

 #70
20180291773
2018-10-11

PROCESS FOR THE PREPARATION OF LOMITAPIDE

 #71
20180283241
2018-10-04

Compression brake for internal combustion engine

 #72
20180283231
2018-10-04

Camshaft adjusting device

 #73
20180283224
2018-10-04

Hydraulic support element

 #74
20180274396
2018-09-27

Valve drive for an internal combustion engine

 #75
20180252306
2018-09-06

Valve train retention clip with integrated locking pin anti-rotation feature

 #76
20180245487
2018-08-30

Camshaft adjusting device

 #77
20180119579
2018-05-03

Hydraulic lash adjuster

 #78
20180094552
2018-04-05

Switch valve and connecting rod for variable compression internal combustion engine

 #79
20180094551
2018-04-05

Switchable roller finger follower with integrated leakage path for de-aeration

 #80
20180080349
2018-03-22

Fluid diverter

 #81
20180073401
2018-03-15

Rocker arm having oil release valve that operates as an accumulator

 #82
20180045084
2018-02-15

Valve train assembly

 #83
20170362973
2017-12-21

Engine assembly

 #84
20170350282
2017-12-07

Variable valve mechanism of internal combustion engine

 #85
20170342867
2017-11-30

Columnar hydraulic tappet

 #86
20170321576
2017-11-09

Oil control for rocker arm and hydraulic lash adjuster

 #87
20170321575
2017-11-09

Axial cam shifting valve assembly with additional discrete valve event

 #88
20170314429
2017-11-02

Pivot bearing of a hydraulic clearance compensation element

 #89
20170284237
2017-10-05

Rocker arm with hydraulic lash adjustment

 #90
20170284236
2017-10-05

Rocker shaft with de-aeration oil gallery segment

 #91
20170276035
2017-09-28

Rocker arm assembly for engine braking

 #92
20170276034
2017-09-28

Rocker arm assembly for engine braking

 #93
20170234173
2017-08-17

Hydraulic lash adjuster

 #94
20170183982
2017-06-29

Non-contacting actuator for rocker arm assembly latches

 #95
20170175592
2017-06-22

System and method for variable actuation of a valve of an internalcombustion engine, with an electrically operated control valve having an improved control

 #96
20170159515
2017-06-08

Valve gear for engine

 #97
20170152769
2017-06-01

Variable valve drive having a rocker lever

 #98
20170122135
2017-05-04

Method for setting lash in a mechanically lashed valvetrain having a switching rocker arm

 #99
20170089232
2017-03-30

System for engine valve actuation comprising lash-prevention valve actuation motion

 #100
20170081986
2017-03-23

Lost motion differential valve actuation

 #101
20170051639
2017-02-23

Valve bridge assembly

 #102
20170051638
2017-02-23

Valve train assembly

 #103
20170022856
2017-01-26

Internal combustion engine

 #104
20170022848
2017-01-26

Rocker shaft with de-aeration oil gallery segment

 #105
20170016358
2017-01-19

Valve lash adjuster for vehicles

 #106
20170009610
2017-01-12

Switchable rocker arm with pivot joint

 #107
20170002703
2017-01-05

Combined oil filter and restrictor assembly

 #108
20160376936
2016-12-29

Hydraulic lash adjuster

 #109
20160369660
2016-12-22

Valve train of a reciprocating piston internal combustion engine

 #110
20160369659
2016-12-22

Transmission element for reciprocating piston internal combustion engines

 #111
20160341078
2016-11-24

Hydraulic compensation element for the valve train of an internal compensation engine

 #112
20160312725
2016-10-27

Improvements to engine shutdown and restart

 #113
20160312666
2016-10-27

Switchable finger follower with lost motion spring lost stroke minimizer

 #114
20160290179
2016-10-06

Lash adjuster

 #115
20160290178
2016-10-06

Ball plunger for use in a hydraulic lash adjuster and method of making same

 #116
20160265395
2016-09-15

Variable travel valve apparatus for an internal combustion engine

 #117
20160238044
2016-08-18

Column type hydraulic tappet

 #118
20160208660
2016-07-21

Hydraulic lash adjuster

 #119
20160201523
2016-07-14

Compact valve bridge assembly having cartridge insert

 #120
20160146072
2016-05-26

Engine system and operation method using engine braking mechanisms for early exhaust valve opening

 #121
20160138437
2016-05-19

Variable valve lift system

 #122
20160108766
2016-04-21

Method for diagnosing variable valve actuation malfunctions by monitoring fluid pressure in a control gallery

 #123
20160090874
2016-03-31

Variable valve lift system

 #124
20160084117
2016-03-24

System to diagnose variable valve actuation malfunctions by monitoring fluid pressure in a hydraulic lash adjuster gallery

 #125
20160069256
2016-03-10

HYDRAULIC ENGINE

 #126
20160061064
2016-03-03

Valve timing control apparatus

 #127
20160017767
2016-01-21

Valve opening/closing timing control device

 #128
20150369087
2015-12-24

Centrifugal process to eliminate air in high pressure chamber of hydraulic lash adjuster

 #129
20150345347
2015-12-03

Intake valve closure control for dual-fuel engines

 #130
20150322823
2015-11-12

Support element for a valve train of an internal combustion engine, and method for production of support element

 #131
20150260122
2015-09-17

Cylinder head device for an internal combustion engine and internal combustion engine having such a cylinder head device

 #132
20150176439
2015-06-25

Method for operating an internal combustion engine with electrohydraulic valve control means

 #133
20150159521
2015-06-11

Apparatus and system comprising collapsing and extending mechanisms for actuating engine valves

 #134
20150159520
2015-06-11

Valve bridge

 #135
20150122220
2015-05-07

Hydraulic lash adjuster

 #136
20150090206
2015-04-02

Valve mechanism for internal combustion engine and control device for valve mechanism

 #137
20140373808
2014-12-25

Engine system and operation method using engine braking mechanisms for early exhaust valve opening

 #138
20140283768
2014-09-25

VALVETRAIN OIL CONTROL SYSTEM AND OIL CONTROL VALVE

 #139
20140230768
2014-08-21

Lash adjuster

 #140
20140230767
2014-08-21

Lash adjuster

 #141
20140230766
2014-08-21

Lash adjuster

 #142
20140230762
2014-08-21

Control device for internal combustion engine

 #143
20140224202
2014-08-14

Lash adjuster

 #144
20140224201
2014-08-14

Lash adjuster

 #145
20140222313
2014-08-07

Method of controlling fluid pressure-actuated switching component and control system for same

 #146
20140202407
2014-07-24

Starting device of spark-ignition multi-cylinder engine

 #147
20140182528
2014-07-03

Variable valve lift device and valve apparatus for vehicle engine using the same

 #148
20140116363
2014-05-01

Hybrid cam-camless variable valve actuation system

 #149
20140109852
2014-04-24

Apparatus for actuating at least one outlet valve of a valve-controlled internal combustion engine

 #150
20130319370
2013-12-05

Method and apparatus for resetting valve lift for use in engine brake

 #151
20130319358
2013-12-05

Valve drive with additional lift in the cam base circle

 #152
20130298859
2013-11-14

Hydraulic lash adjuster, a valve train comprising the same and a method of assembling the same

 #153
20130298854
2013-11-14

Engine including oil pressure passage with air bleed

 #154
20130174799
2013-07-11

Actuator of an electrohydraulic gas exchange valve drive of an internal combustion engine

 #155
20130104825
2013-05-02

Hydraulic valve lifter pushrod seal

 #156
20130092109
2013-04-18

Hydraulic Engine

 #157
20130000574
2013-01-03

Oil control valve assembly for engine cam switching

 #158
20120272932
2012-11-01

FLUID PRESSURE CONTROL VALVE

 #159
20120234067
2012-09-20

Ball plunger for use in a hydraulic lash adjuster and method of making same

 #160
20120186544
2012-07-26

Engine assembly including modified camshaft arrangement

 #161
20120152183
2012-06-21

Hydraulic Engine

 #162
20120024249
2012-02-02

HYDRAULIC BACKLASH COMPENSATING ELEMENT

 #163
20110265456
2011-11-03

Diesel Engine and Method for Flexible Passive Regeneration of Exhaust After-Treatment Devices

 #164
20110232603
2011-09-29

Reciprocating-piston internal combustion engine with engine brake and additional opening of an exhaust valve

 #165
20110174250
2011-07-21

Auxiliary electric oil booster pump apparatus for a motorcycle

 #166
20110162610
2011-07-07

Hermetically sealed lash adjuster

 #167
20110079196
2011-04-07

Internal combustion engine having a motor brake assembly

 #168
20110079195
2011-04-07

Internal combustion engine having a motor brake assembly

 #169
20110061615
2011-03-17

Apparatus and method for setting mechanical lash in a valve-deactivating hydraulic lash adjuster

 #170
20110056447
2011-03-10

Valve clearance compensation device and method for controlling a valve clearance compensating device for an internal combustion engine

 #171
20100186701
2010-07-29

Engine including cylinder deactivation assembly and method of control

 #172
20100186696
2010-07-29

Oil control valve assembly for engine cam switching

 #173
20100186694
2010-07-29

Engine including cylinder deactivation assembly and method of control

 #174
20100126452
2010-05-27

Apparatus for preventing oil from draining in engine having HLA

 #175
20100077973
2010-04-01

Variable travel valve apparatus for an internal combustion engine

 #176
20100071649
2010-03-25

BALL PLUNGER FOR USE IN A HYDRAULIC LASH ADJUSTER AND METHOD OF MAKING SAME

 #177
20100018482
2010-01-28

Valvetrain oil control system and oil control valve

 #178
20090271088
2009-10-29

Hydraulic engine

 #179
20090266319
2009-10-29

SYSTEM AND METHOD FOR PROVIDING HYDRAULIC VALVE LASH COMPENSATION FOR ELECTRICALLY ACTUATED INTERNAL COMBUSTION ENGINE POPPET VALVES

 #180
20090255495
2009-10-15

Method of variable valve timing in an internal combustion engine

 #181
20090250023
2009-10-08

Variable valve driving device

 #182
20090217896
2009-09-03

Valve drive for an internal combustion engine

 #183
20090205601
2009-08-20

Oil system for active fuel management on four valve engines

 #184
20090188457
2009-07-30

Lash adjuster

 #185
20090064955
2009-03-12

Valve control for reciprocating piston internal combustion engine

 #186
20090044775
2009-02-19

Hydraulic lash adjuster with damping device

 #187
20090031977
2009-02-05

Low profile valve lifter assembly

 #188
20090031976
2009-02-05

Hydraulic lash compensation device with mechanical lift loss feature

 #189
20090020088
2009-01-22

Lash adjuster and valve apparatus

 #190
20090007873
2009-01-08

Compact lash adjuster feed channel apparatus

 #191
20090000579
2009-01-01

Valve train with overload features

 #192
20080289597
2008-11-27

Switchable valve train member

 #193
20080264366
2008-10-30

Oil passage structure of valve operating system

 #194
20080230023
2008-09-25

Variable valve mechanism

 #195
20080196684
2008-08-21

Hydraulic lash adjuster

 #196
20080190390
2008-08-14

Lift amount adjusting device in lift-variable valve-operating mechanism

 #197
20080141965
2008-06-19

Hydraulic cam follower

 #198
20080087244
2008-04-17

Hydraulic valve lash adjuster with idle stroke function for a valve train of an internal combustion engine

 #199
20080073608
2008-03-27

Hydraulic valve play compensating element

 #200
20080072857
2008-03-27

Hydraulic valve clearance compensation element

 #201
20080066704
2008-03-20

Open ended mini lash adjuster

 #202
20080047510
2008-02-28

Dual oil feed structure of cylinder de-activation engine for vehicle

 #203
20080035086
2008-02-14

Lift-variable valve-operating system for internal combustion engine

 #204
20080022955
2008-01-31

Hydraulic valve lash adjuster for a valve train of an internal combustion engine

 #205
20070295293
2007-12-27

Valve lifter assembly for selectively deactivating a cylinder

 #206
20070272192
2007-11-29

Device for Filtering Lubricating Oil

 #207
20070261652
2007-11-15

Compact lash adjuster feed channel apparatus

 #208
20070261650
2007-11-15

Lift-variable valve-operating systems for internal combustion engine

 #209
20070252099
2007-11-01

Electromagnetically Driven Valve

 #210
20070240659
2007-10-18

Cylinder deactivation apparatus

 #211
20070240655
2007-10-18

Lift-variable valve-operating system for internal combustion engine

 #212
20070240654
2007-10-18

Lift-variable valve-operating system for internal combustion engine

 #213
20070234989
2007-10-11

VALVE OPERATING ASSEMBLY AND METHOD OF MANUFACTURING

 #214
20070215087
2007-09-20

Device for hydraulic lash adjustment

 #215
20070214639
2007-09-20

ROLLER FOLLOWER ASSEMBLY

 #216
20070209623
2007-09-13

Lifter retainer

 #217
20070204818
2007-09-06

Valve lash adjuster having electro-hydraulic lost-motion capability

 #218
20070157898
2007-07-12

Valve lifter body and method of manufacture

 #219
20070144467
2007-06-28

Valve timing gear of an internal combustion engine

 #220
20070074687
2007-04-05

Variable valve lift control system for a combustion engine with underneath camshaft

 #221
20070044746
2007-03-01

Hydraulic play compensation device

 #222
20070039575
2007-02-22

Guide rail for valve tappet of an internal combustion engine

 #223
20070034183
2007-02-15

Lift-variable valve-operating system for internal combustion engine

 #224
20070006838
2007-01-11

Deactivation roller hydraulic valve lifter

 #225
20070000464
2007-01-04

Deactivation roller hydraulic valve lifter

 #226
20070000463
2007-01-04

Deactivation roller hydraulic valve lifter

 #227
20060266320
2006-11-30

Valve lifter with integral hydraulic lash adjuster and a method of measuring its dry length

 #228
20060254549
2006-11-16

Hydraulic tappet clearance compensation device

 #229
20060249111
2006-11-09

Lift-variable valve-operating system for internal combustion engine

 #230
20060219198
2006-10-05

Variable valve drive for changing the control timing of cam-actuated gas-exchange valves

 #231
20060219196
2006-10-05

Variable valve mechanism

 #232
20060207528
2006-09-21

Valve train for an internal combustion engine

 #233
20060201466
2006-09-14

Hydraulic valve play compensation element

 #234
20060180110
2006-08-17

Hydraulic lash adjuster

 #235
20060169236
2006-08-03

Valve train of an internal combustion engine comprising a tappet and a tappet pushrod

 #236
20060137641
2006-06-29

Force-transmitting arrangement for a valve train of an internal-combustion engine

 #237
20060137640
2006-06-29

Force-transmitting arrangement for a valve train of an internal-combustion engine

 #238
20060130794
2006-06-22

Valve train of an internal combustion engine comprising a tappet and a tappet pushrod

 #239
20060130793
2006-06-22

Valve train of an internal combustion engine comprising a tappet and a hollow tappet pushrod

 #240
20060016411
2006-01-26

Controlled engine camshaft stopping position

 #241
20060016410
2006-01-26

Hydraulic valve-lash-adjusting element (HVA)

 #242
20050279305
2005-12-22

Valve drive

 #243
20050279297
2005-12-22

Cam for actuating a valve mechanism of an internal combustion engine

 #244
20050268875
2005-12-08

Valve operating assembly and method of manufacturing

 #245
20050252484
2005-11-17

Compact lost motion system for variable value actuation

 #246
20050252473
2005-11-17

Metering socket

 #247
20050229887
2005-10-20

Hydraulic valve-lash-adjusting element

 #248
20050229886
2005-10-20

Valve train with hydraulic lash adjustment

 #249
20050205034
2005-09-22

Leakdown plunger

 #250
20050199206
2005-09-15

Valve operating assembly

 #251
20050178351
2005-08-18

Hydraulic support element

 #252
20050126523
2005-06-16

Hydraulically actuated, variable valve drive of an internal combustion engine

 #253
20050109301
2005-05-26

Leakdown plunger

 #254
20050103300
2005-05-19

Anti-rotation deactivation valve lifter

 #255
20050081811
2005-04-21

Anti-rotation deactivation valve lifter

 #256
20050076886
2005-04-14

Fuel injection nozzle of engine

 #257
20050061289
2005-03-24

Engine oil system with oil pressure regulator to increase cam phaser oil pressure

 #258
20050061281
2005-03-24

Valve lifter for internal combustion engine

 #259
20050061273
2005-03-24

Pin housing sub-assembly for an hydraulic valve lifter

 #260
20050056246
2005-03-17

Hydraulic cam follower

 #261
20050045132
2005-03-03

Deactivation roller hydraulic valve lifter

 #262
20050000476
2005-01-06

System and method for improving performance of hydraulic actuating system

 #263
18055020
2023-11-28

Hydraulic tensioner with external pin and ratchet mechanism

 #264
16116247
2019-12-31

Switchable rocker arm with lash adjustment and travel stop

 #265
15938313
2019-08-27

Hydraulic system purging via position synchronized solenoid pulsing