ClassID:

137211

F01L2001/3443 - page 2 - 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 hydraulic chambers with variable volume to transmit the rotating force; Details relating to the hydraulic feeding circuit; Oil control valves Solenoid driven oil control valves

Recent Application in this class:
#301
20090007864
2009-01-08

VVT control method during lock pin disengagement

#302
20080315140
2008-12-25

Electric spool valve

#303
20080302983
2008-12-11

Fluid control valve

#304
20080271689
2008-11-06

Control valve for a device for variably adjusting the valve timing for gas exchange valves in an internal combustion engine

#305
20080264364
2008-10-30

Variable camshaft timing system

#306
20080245983
2008-10-09

Hydraulic directional valve

#307
20080236529
2008-10-02

Control valve for a device for changing the control times of an internal combustion engine

#308
20080236520
2008-10-02

Multicylinder engine for a vehicle, and vehicle incorporating same

#309
20080230025
2008-09-25

Valve timing control system

#310
20080228373
2008-09-18

Control device and control method of internal combustion engine

#311
20080202458
2008-08-28

Engine

#312
20080202457
2008-08-28

Engine

#313
20080196777
2008-08-21

Electromagnetic hydraulic valve

#314
20080189022
2008-08-07

Control apparatus for an internal combustion engine

#315
20080183373
2008-07-31

Diagnostic methods and systems for active fuel management systems

#316
20080163837
2008-07-10

Electromagnetic hydraulic valve

#317
20080149056
2008-06-26

Camshaft adjuster control valve arrangement

#318
20080136404
2008-06-12

Cam phasing system with mid-range engine shutdown

#319
20080110422
2008-05-15

Control system and method for internal combustion engine

#320
20080092837
2008-04-24

Valve event reduction through operation of a fast-acting camshaft phaser

#321
20080088095
2008-04-17

Sleeve and cylinder head cover

#322
20080087344
2008-04-17

Control valve assembly

#323
20080083384
2008-04-10

Valve timing controller

#324
20080078342
2008-04-03

Multi-cylinder internal combustion engine

#325
20080060595
2008-03-13

Mounting structure of functional device for internal combustion engine

#326
20080054205
2008-03-06

Variable valve actuator with latches at both ends

#327
20080047516
2008-02-28

Phase adjusting apparatus and a cam shaft phase adjusting apparatus for an internal combustion engine

#328
20080047508
2008-02-28

Valve timing controller

#329
20080035087
2008-02-14

Oil control valve of a vehicle engine

#330
20080035082
2008-02-14

Valve actuation mechanism

#331
20080029050
2008-02-07

Variable valve timing controller for internal combustion engine

#332
20080022952
2008-01-31

Valve timing control apparatus and its assembling method

#333
20070295413
2007-12-27

OIL PRESSURE CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE

#334
20070266976
2007-11-22

Controller for vane-type variable valve timing adjusting mechanism

#335
20070251475
2007-11-01

Valve timing control apparatus of internal combustion engine

#336
20070251474
2007-11-01

Cam phasing system with mid-range engine shutdown

#337
20070235007
2007-10-11

Ignition timing control system and method for internal combustion engine, and engine control unit

#338
20070227483
2007-10-04

Variable valve timing apparatus executing reference position learning and control method thereof

#339
20070215084
2007-09-20

Variable chamber volume phaser

#340
20070208486
2007-09-06

Control system for internal combustion engine

#341
20070186887
2007-08-16

Camshaft phaser having designated contact vane

#342
20070175425
2007-08-02

Method and apparatus for operating an oil flow control valve

#343
20070095316
2007-05-03

Hydraulic control system for internal combustion engine

#344
20070095315
2007-05-03

Control valve for an apparatus for variable setting of the control times of gas exchange valves of an internal combustion engine

#345
20070062588
2007-03-22

Electromagnetic hydraulic valve, in particular a 3/2-way directional control valve, for controlling a variable drive train of an internal combustion engine

#346
20070062586
2007-03-22

Oil flow control valve for a cam phaser

#347
20070062475
2007-03-22

INA-schaeffler KG, industriestrasse 1-3, 91074 herzogenaurach ANR 12 88 48 20

#348
20070051328
2007-03-08

Fuzzy logic based cam phaser control

#349
20070028874
2007-02-08

Mapping temperature compensation limits for PWM control of VCT phasers

#350
20070017587
2007-01-25

Electromagnetic adjustment unit

#351
20070017463
2007-01-25

Control mechanism for cam phaser

#352
20070000302
2007-01-04

Method for testing the function of a hydraulic valve and a test bench for carrying out said method

#353
20060211504
2006-09-21

Device for adjusting the relative angular position of two rotating elements

#354
20060207535
2006-09-21

Internal combustion engine

#355
20060180107
2006-08-17

Valve timing control system for internal combustion engine and method for assembling same

#356
20060162682
2006-07-27

Solenoid spool valve

#357
20060118072
2006-06-08

Camshaft adjuster for an internal combustion engine

#358
20060106527
2006-05-18

Evaluation method of diagnostic function for variable valve mechanism and evaluation apparatus for variable valve mechanism

#359
20060096562
2006-05-11

Reed valve with multiple ports

#360
20060086332
2006-04-27

CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals

#361
20060071560
2006-04-06

Solenoid arrangement

#362
20060065581
2006-03-30

Electromagnetic valve unit and engine cover unit

#363
20060042581
2006-03-02

Valve timing control apparatus and its assembling method

#364
20060032474
2006-02-16

Oil filter for continuous variable valve timing apparatus in engine

#365
20060027773
2006-02-09

Electrohydraulic valve having an armature with a rolling bearing

#366
20060027199
2006-02-09

Resin cylinder head cover

#367
20060016495
2006-01-26

Control valve for a device to modify the timing of an internal combustion engine

#368
20060000994
2006-01-05

Electromagnetic valve

#369
20060000434
2006-01-05

Resin cylinder head cover

#370
20050274336
2005-12-15

Electromagnetic hydraulic valve, particularly 3/2-way pilot valve for controlling a variable valve drive of an internal combustion engine

#371
20050257762
2005-11-24

Variable valve timing control system of internal combustion engine

#372
20050252561
2005-11-17

Control valve for a device changing the control times of an internal combustion engine

#373
20050235935
2005-10-27

Valve timing changer

#374
20050203642
2005-09-15

Control apparatus for controlling a plant by using a delta-sigma modulation algorithm

#375
20050201036
2005-09-15

Method of operating a device for controlling electric actuators with optimum actuation current distribution

#376
20050150561
2005-07-14

Electrohydraulic valve assembly for controlling operation of engine cylinders

#377
20050139180
2005-06-30

Electromagnetic spool valve

#378
20050116189
2005-06-02

Compound valve assembly for controlling high and low oil flow and pressure

#379
20050115529
2005-06-02

Device for adjusting the relative angular position of two rotating elements

#380
20050109298
2005-05-26

Camshaft adjuster for an internal combustion engine having hydraulic medium guides

#381
20050109297
2005-05-26

Pivoting lifter control system using spool valve and check valve to recirculate oil

#382
20050103299
2005-05-19

Electrically driven camshaft adjuster

#383
20050103297
2005-05-19

CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals

#384
20050103294
2005-05-19

Camshaft adjustment control device

#385
20050103191
2005-05-19

Oil pressure control apparatus for an internal combustion engine

#386
20050098132
2005-05-12

Valve timing control apparatus for internal combustion engine

#387
20050081810
2005-04-21

Oil flow control valve

#388
20050072391
2005-04-07

VCT sensor and actuator module

#389
20050066924
2005-03-31

Hydraulic camshaft adjuster for an internal combustion engine

#390
20050066923
2005-03-31

Valve timing regulating apparatus with improved phase control response

#391
20050061276
2005-03-24

Variable valve timing controller for internal combustion engine

#392
20050056249
2005-03-17

Camshaft adjustment control device

#393
20050056245
2005-03-17

Camshaft adjuster

#394
20050055152
2005-03-10

Trouble detector of vehicle having deceleration idling-cylinder engine

#395
20050051123
2005-03-10

Camshaft adjuster for an internal combustion engine

#396
20050045130
2005-03-03

Camshaft incorporating variable camshaft timing phaser rotor

#397
20050038593
2005-02-17

Method for controlling the position of a camshaft actuator

#398
20050028773
2005-02-10

Variable valve actuation apparatus for internal combustion engine

#399
18462464
2024-06-04

System and method for variable valve timing

#400
18206366
2024-02-13

Hydraulically lockable variable camshaft phaser

#401
17580713
2023-01-24

Recirculating hydraulic fluid control valve

#402
16993704
2021-11-16

VCT valve with reed check

#403
16239975
2020-05-19

Valve body assembly for idler shaft mounted camshaft phasing system

#404
16216561
2020-05-26

Camshaft phaser