ClassID:

137522

F01L2820/033 - CPC Classification

Classification description:

Details on specific features characterising valve gear arrangements; Auxiliary actuators Hydraulic engines

Recent Application in this class:
#1
20240426229
2024-12-26

Camshaft adjuster with reset function

#2
20240280036
2024-08-22

ROCKER ARM WITH OUTWARDLY SPRUNG HYDRAULIC ACTUATOR PISTON

#3
20230025775
2023-01-26

Variable valve mechanism

#4
20210131317
2021-05-06

Development of a switching roller finger follower for cylinder deactivation in internal combustion engines

#5
20210131316
2021-05-06

DEVELOPMENT OF A SWITCHING ROLLER FINGER FOLLOWER FOR CYLINDER DEACTIVATION IN INTERNAL COMBUSTION ENGINES

#6
20210040868
2021-02-11

Actuation apparatus

#7
20200340374
2020-10-29

Actuation arrangement for a valve train assembly

#8
20190249575
2019-08-15

Development of a switching roller finger follower for cylinder deactivation in internal combustion engines

#9
20190242277
2019-08-08

Dual actuating variable cam

#10
20190072009
2019-03-07

Sliding cam system

#11
20190040802
2019-02-07

Systems and methods for counter flow management and valve motion sequencing in enhanced engine braking

#12
20190040772
2019-02-07

Systems and methods for counter flow management and valve motion sequencing in enhanced engine braking

#13
20190003352
2019-01-03

Internal combustion engine

#14
20180094551
2018-04-05

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

#15
20180058275
2018-03-01

Development of a switching roller finger follower for cylinder deactivation in internal combustion engines

#16
20170145876
2017-05-25

Variable valve train with a rocker arm

#17
20170037749
2017-02-09

Camshaft phaser using one-way slipper clutches

#18
20170022857
2017-01-26

LOCKING CYLINDER PRESSURE RELIEF ACTUATOR

#19
20170009618
2017-01-12

Modularized multifunctional variable valve actuation system for use in 6-cylinder internal combustion engine

#20
20160369667
2016-12-22

Valve gear for engine

#21
20160265398
2016-09-15

Variable valve timing mechanism and engine with variable valve timing mechanism

#22
20160024981
2016-01-28

System and method for safe valve activation in a dynamic skip firing engine

#23
20140366820
2014-12-18

Apparatus for actuating valves in vehicles in variable valve control manner

#24
20140311431
2014-10-23

Internal combustion engine

#25
20140182529
2014-07-03

Lost-motion variable valve actuation system with valve deactivation

#26
20130312506
2013-11-28

Systems, methods, and devices for valve stem position sensing

#27
20130298854
2013-11-14

Engine including oil pressure passage with air bleed

#28
20130186357
2013-07-25

VARIABLE VALVE TIMING DEVICE WITH ECCENTRIC VALVE ACTUATOR SLEEVES

#29
20120312263
2012-12-13

Variable Geometry Cam Shafts For Multiple-Cylinder Internal Combustion Engines

#30
20120298057
2012-11-29

Primary and auxiliary rocker arm assembly for engine valve actuation

#31
20120227688
2012-09-13

Engine assembly including cylinder head oil gallery

#32
20120192840
2012-08-02

Lost-motion variable valve actuation system with valve deactivation

#33
20120132162
2012-05-31

VARIABLE VALVE ACTUATOR ASSEMBLY INTEGRATED WITH VALVE BRIDGE

#34
20120097878
2012-04-26

Variable valve lift apparatus

#35
20110220061
2011-09-15

Compression brake system for an engine

#36
20110203549
2011-08-25

Internal combustion piston engine with engine braking by opening of exhaust valves

#37
20110186008
2011-08-04

ENGINE BRAKING DEVICE FOR AN INTERNAL COMBUSTION ENGINE

#38
20110132327
2011-06-09

Abnormality detection device for internal combustion engine

#39
20110126800
2011-06-02

Variable compression ratio apparatus of exhaust gas brake

#40
20110067661
2011-03-24

Lost motion variable valve actuation system with valve catch piston

#41
20110036317
2011-02-17

Continuously variable valve lift device for vehicle

#42
20100300389
2010-12-02

Switchable finger lever

#43
20100170472
2010-07-08

Integrated engine brake with mechanical linkage

#44
20100170471
2010-07-08

Engine braking apparatus with two-level pressure control valves

#45
20100147269
2010-06-17

Internal Combustion Engine With Optimal Bore-To-Stroke Ratio

#46
20100139589
2010-06-10

Variable valve lift apparatus

#47
20100126459
2010-05-27

Fixation structure for valve system rotation shaft of internal combustion engine

#48
20090266339
2009-10-29

Internal combustion engine

#49
20090266329
2009-10-29

Internal combustion engine

#50
20090211546
2009-08-27

Method and device for the operation of a valve of the combustion chamber of a combustion engine, and a combustion engine

#51
20090007873
2009-01-08

Compact lash adjuster feed channel apparatus

#52
20080314341
2008-12-25

Electromagnetically-driven valve

#53
20080149058
2008-06-26

Actuator and Control Method For Variable Valve Timing (Vvt) Mechanism

#54
20080047530
2008-02-28

Internal combustion engine

#55
20080000438
2008-01-03

System for controlling the response time of a hydraulic system

#56
20070266971
2007-11-22

Variable valve lift device for the lift adjustment of gas-exchange valves of an internal combustion engine

#57
20070261652
2007-11-15

Compact lash adjuster feed channel apparatus

#58
20070193543
2007-08-23

VALVE DEACTIVATION DEVICE

#59
20070144472
2007-06-28

Method and system for partial cycle bleeder brake

#60
20070089416
2007-04-26

Combustion engine including engine valve actuation system

#61
20060185426
2006-08-24

Method and code for controlling actuator responsive to oil pressure using oil viscosity measure

#62
20050235953
2005-10-27

Combustion engine including engine valve actuation system

#63
20050193970
2005-09-08

Valve characteristic changing apparatus for internal combustion engine

#64
20050188930
2005-09-01

Valve deactivation device

#65
20050154522
2005-07-14

Failure diagnostic apparatus for variable valve mechanism of internal combustion engine and failure diagnostic method for variable valve mechanism

#66
18507667
2024-08-06

Vehicle system