ClassID:

137201

F01L1/34 - 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

Sub-classes:
Recent Application in this class:
#1
20250382905
2025-12-18

ADAPTIVE INTERNAL COMBUSTION ENGINE CYCLE SYSTEM FOR ENHANCED EFFICIENCY AND EMISSIONS REDUCTION

#2
20250334063
2025-10-30

COMBUSTION INJECTION AND CONTROL METHOD FOR ROTARY VALVE ENGINE

#3
20250334062
2025-10-30

FUEL INJECTED INDEPENDENT ROTARY VALVE ENGINE

#4
20250146429
2025-05-08

A PHASE CHANGE SYSTEM FOR OPENING AND/OR CLOSING INTAKE VALVES

#5
20250092838
2025-03-20

Control Method of Valve Opening and Closing

#6
20240271579
2024-08-15

Reversing method for a vehicle powertrain

#7
20240263569
2024-08-08

Hydraulic capsules for valvetrain assembly

#8
20240247616
2024-07-25

Method of controlling inlet valves and exhaust valves of an internal combustion engine, control arrangement, combustion engine, and vehicle

#9
20240240598
2024-07-18

METHOD TO ADJUST AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE

#10
20240077003
2024-03-07

Variable valve device

#11
20240077002
2024-03-07

Variable valve device

#12
20230417161
2023-12-28

Installation structure for oil control valve

#13
20230272717
2023-08-31

Rotary manifold for a cohesion-type drive

#14
20220412232
2022-12-29

Latch assembly, latching device, and rocker arm

#15
20220381190
2022-12-01

Control apparatus for electric vehicle

#16
20220316368
2022-10-06

Engine control apparatus

#17
20220268219
2022-08-25

Camshaft toothed wheel for a 3-, 4- or 6-cylinder engine with variable valve timing

#18
20220195954
2022-06-23

Use of different pneumatic cylinder spring types in a variable displacement engine for engine and aftertreatment system temperature control

#19
20210363931
2021-11-25

Use of different pneumatic cylinder spring types in a variable displacement engine for engine and aftertreatment system temperature control

#20
20210340930
2021-11-04

Combustion engine

#21
20210071569
2021-03-11

Fastening structure

#22
20210062690
2021-03-04

Cam phaser control systems and methods for engine off conditions

#23
20200386172
2020-12-10

Internal combustion engine for a motor vehicle, and method for operating such an internal combustion engine

#24
20200362772
2020-11-19

Cam phasing control for thermal management

#25
20200355078
2020-11-12

Rotary manifold for a cohesion-type drive

#26
20200318559
2020-10-08

Internal combustion engine system

#27
20200292035
2020-09-17

UNLOCKING MECHANISM FOR A VARIABLE CAMSHAFT PHASER

#28
20200200103
2020-06-25

Internal combustion engine and a method for controlling a braking torque of the engine

#29
20200173415
2020-06-04

DEPRESSURIZATION DEVICE OF INTERNAL COMBUSTION ENGINE

#30
20200173377
2020-06-04

Method and device for controlling a camshaft phase adjuster in an internal combustion engine

#31
20200149438
2020-05-14

Connection unit, electric motor, and valve timing change device

#32
20200141284
2020-05-07

Valve timing adjusting device

#33
20200095909
2020-03-26

Control method and control system for continuously variable valve lift mechanism and vehicle

#34
20200072134
2020-03-05

Miller cycle engine

#35
20190360451
2019-11-28

Control system of compression-ignition engine

#36
20190360425
2019-11-28

Control system for compression-ignition engine

#37
20190353059
2019-11-21

Camshaft adjusting system having a hydraulic camshaft adjuster and an electric camshaft adjuster

#38
20190292950
2019-09-26

Control device for internal combustion engine

#39
20190284967
2019-09-19

Variable valve mechanism of internal combustion engine

#40
20190249606
2019-08-15

Internal combustion engine and a method for controlling a braking torque of the engine

#41
20190242299
2019-08-08

Split-cycle engine with a variable displacement compressor and a rotary motor

#42
20190211717
2019-07-11

Method for changing gear ratio in a gearbox of a vehicle

#43
20190186305
2019-06-20

Supercharged applied ignition internal combustion engine with exhaust-gas turbocharging and method for operating an internal combustion engine of said type

#44
20190178192
2019-06-13

Method and apparatus for diagnosing fault in continuous variable valve duration system

#45
20190153913
2019-05-23

Continuously variable valve duration apparatus and engine provided with the same

#46
20190107077
2019-04-11

Internal combustion engine having valve seat pockets

#47
20190107061
2019-04-11

Control apparatus for engine

#48
20190078532
2019-03-14

Engine with rotating valve assembly

#49
20190010837
2019-01-10

Engine variable camshaft timing phaser with planetary gear assembly

#50
20180334933
2018-11-22

Multiple variable valve lift apparatus

#51
20180283343
2018-10-04

Method for Starting an Internal Combustion Engine

#52
20180283290
2018-10-04

Control device of internal-combustion engine

#53
20180283227
2018-10-04

Method for retracting a partially extended sliding camshaft actuator pin

#54
20180274473
2018-09-27

Method of cam phase control based on cylinder wall temperature

#55
20180266283
2018-09-20

Variable camshaft timing mechanism with a lock pin engaged by oil pressure

#56
20180258879
2018-09-13

Cam carrier insert

#57
20180231434
2018-08-16

Cam angle sensor fault diagnosis apparatus for straddled vehicle, engine system, and straddled vehicle

#58
20180209362
2018-07-26

Method for determining the state of rotation of a camshaft of a vehicle engine

#59
20180202327
2018-07-19

Continuously variable friction drive phaser

#60
20180187611
2018-07-05

System and method to operate an engine

#61
20180171884
2018-06-21

Systems and methods for a split exhaust engine system

#62
20180142556
2018-05-24

Rotary manifold for a cohesion-type drive

#63
20180100453
2018-04-12

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

#64
20180100452
2018-04-12

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

#65
20180100445
2018-04-12

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

#66
20180100444
2018-04-12

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

#67
20180094616
2018-04-05

Control device for internal combustion engine

#68
20180094554
2018-04-05

VARIABLE CAMSHAFT

#69
20180087411
2018-03-29

Electric cam phasing system including an activatable lock

#70
20180080351
2018-03-22

Roller formed hydraulic variable cam timing phaser

#71
20180073472
2018-03-15

Method of operating internal combustion engine having increased rich limit for dedicated EGR cylinder

#72
20180051644
2018-02-22

Method for diagnosing variable valve timing system

#73
20180038306
2018-02-08

Direct injection engine

#74
20170363511
2017-12-21

Angular orientation of camshafts and crankshaft of an engine assembly

#75
20170356563
2017-12-14

Clip filter for hydraulic valve and hydraulic valve with clip filter

#76
20170350328
2017-12-07

Controller and control method for internal combustion engine

#77
20170321620
2017-11-09

Linear motor valve actuator system and method for controlling valve operation

#78
20170321613
2017-11-09

Systems and methods of controlling valve timing in an engine

#79
20170309385
2017-10-26

MAGNETIC ACTUATOR

#80
20170306811
2017-10-26

Supercharged applied ignition internal combustion engine with exhaust-gas turbocharging and method for operating an internal combustion engine of said type

#81
20170298791
2017-10-19

VALVE LIFT ASSEMBLY FOR A CAM-IN-BLOCK ENGINE

#82
20170284313
2017-10-05

Switchable rocker arm with reduced coupling assembly loads

#83
20170284238
2017-10-05

Continuous variable valve duration apparatus and engine provided with the same

#84
20170276082
2017-09-28

Internal combustion engine

#85
20170276074
2017-09-28

Supervisory model predictive control in an engine assembly

#86
20170268440
2017-09-21

Method for pre-ignition control in a pre-delivery phase

#87
20170268437
2017-09-21

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

#88
20170268436
2017-09-21

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

#89
20170268435
2017-09-21

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

#90
20170254436
2017-09-07

Oil control valve for supplying oil at end portion and assembly method thereof

#91
20170248047
2017-08-31

Engine variable camshaft timing phaser with planetary gear set

#92
20170248045
2017-08-31

Engine variable camshaft timing phaser with planetary gear assembly

#93
20170248044
2017-08-31

TIMING WHEEL ASSEMBLY FOR A CONCENTRIC CAMSHAFT

#94
20170248043
2017-08-31

Shifting camshaft groove design for load reduction

#95
20170227379
2017-08-10

Sensor device for ascertaining at least one rotation characteristic of a rotating element

#96
20170218866
2017-08-03

Internal combustion engine air charge control

#97
20170218794
2017-08-03

Variable valve mechanism of internal combustion engine

#98
20170198613
2017-07-13

Valvetrain with variable valve actuation

#99
20170183987
2017-06-29

Valve opening and closing timing control apparatus

#100
20170175593
2017-06-22

Valve opening and closing timing control apparatus

#101
20170167409
2017-06-15

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

#102
20170167408
2017-06-15

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

#103
20170167407
2017-06-15

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

#104
20170167406
2017-06-15

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

#105
20170167404
2017-06-15

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

#106
20170167403
2017-06-15

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

#107
20170167402
2017-06-15

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

#108
20170167401
2017-06-15

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

#109
20170167400
2017-06-15

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

#110
20170167399
2017-06-15

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

#111
20170167327
2017-06-15

2-cylinder hybrid engine with oil supply system

#112
20170167323
2017-06-15

Continuous variable valve duration apparatus and engine provided with the same

#113
20170167312
2017-06-15

Continuous variable valve duration apparatus and engine provided with the same

#114
20170167311
2017-06-15

Continuous variable valve duration apparatus and engine provided with the same

#115
20170167310
2017-06-15

Continuous variable valve duration apparatus and engine provided with the same

#116
20170167309
2017-06-15

Powertrain

#117
20170157729
2017-06-08

Method for producing a camshaft assembly

#118
20170130622
2017-05-11

Hydraulic valve for the cam phaser

#119
20170130621
2017-05-11

Valve opening and closing timing control apparatus

#120
20170130618
2017-05-11

Camshaft phaser

#121
20170122145
2017-05-04

Multi-position camshaft phaser with two one-way clutches

#122
20170122136
2017-05-04

Variable valve mechanism

#123
20170120893
2017-05-04

Hybrid vehicle

#124
20170114676
2017-04-27

Sliding CAM recovery from short to ground on actuator low side

#125
20170107865
2017-04-20

Seal ring

#126
20170101909
2017-04-13

Camshaft thrust bearing lubrication system

#127
20170096957
2017-04-06

Exhaust system temperature estimation systems and methods

#128
20170082081
2017-03-23

Method for pre-ignition control

#129
20170081990
2017-03-23

Continuous variable valve lift apparatus and engine provided with the same

#130
20170074179
2017-03-16

Control apparatus for internal combustion engine and control method therefor

#131
20170051686
2017-02-23

Modulated Valve Timing to Achieve Optimum Cylinder Pressure Target

#132
20170037942
2017-02-09

Chain guide and chain transmission device

#133
20170037745
2017-02-09

Continuous variable valve timing control device and control method therefor

#134
20170030229
2017-02-02

Adjustable camshaft

#135
20170002751
2017-01-05

Park positions for variable camshaft phasing systems and methods

#136
20170002698
2017-01-05

Valve train assembly

#137
20160376938
2016-12-29

INTERMEDIATE PHASE ADJUSTMENT APPARATUS OF CVVT

#138
20160369707
2016-12-22

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

#139
20160363045
2016-12-15

Single-shaft dual expansion internal combustion engine

#140
20160363010
2016-12-15

METHOD OF CONTROLLING INTERMEDIATE PHASE CVVT

#141
20160359434
2016-12-08

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

#142
20160348572
2016-12-01

ASSEMBLY INCLUDING A HEAT ENGINE AND AN ELECTRICAL COMPRESSOR CONFIGURED SUCH AS TO SCAVENGE RESIDUAL BURNT GASES

#143
20160348542
2016-12-01

Flow passage partition structure and fluid control valve

#144
20160348541
2016-12-01

Valve switching apparatus

#145
20160333830
2016-11-17

Internal Combustion Engine Having Dedicated EGR and Increased Rich Limit for Dedicated EGR Cylinder

#146
20160333749
2016-11-17

Camshaft adjuster and method for operating a camshaft adjuster

#147
20160326917
2016-11-10

Valve timing control device for internal combustion engine

#148
20160312745
2016-10-27

Piston Engine and Associated Operating Method

#149
20160290244
2016-10-06

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

#150
20160290220
2016-10-06

Exhaust-gas-turbocharged internal combustion engine having at least two turbines and switchable outlet openings, and method for operating an internal combustion engine of said type

#151
20160265395
2016-09-15

Variable travel valve apparatus for an internal combustion engine

#152
20160252025
2016-09-01

Engine refurbishment using ionized air

#153
20160245128
2016-08-25

Control system of engine

#154
20160230867
2016-08-11

Rotor for cam phaser with improved geometry

#155
20160222840
2016-08-04

Modular rotary valve apparatus

#156
20160222835
2016-08-04

Valve timing control device for internal combustion engine, and fastening structure

#157
20160201822
2016-07-14

SOLENOID VALVE

#158
20160186619
2016-06-30

Camshaft adjuster

#159
20160169058
2016-06-16

PISTON MACHINE

#160
20160169057
2016-06-16

Continuous variable valve duration apparatus and control method using the same

#161
20160153372
2016-06-02

Method of improving performance of system for controlling intermediate lock position continuously variable valve by compensating ignition timing

#162
20160146127
2016-05-26

Method for pre-ignition control

#163
20160146126
2016-05-26

Method for pre-ignition control in a pre-delivery phase

#164
20160138439
2016-05-19

Variable valve lift apparatus

#165
20160131087
2016-05-12

Multi-cylinder internal combustion engine

#166
20160131073
2016-05-12

Method and system for engine control

#167
20160130988
2016-05-12

Variable camshaft timing mechanism with a lock pin engaged by oil pressure

#168
20160130987
2016-05-12

Lock determination device for variable valve timing mechanism and lock determination method for variable valve timing mechanism

#169
20160123268
2016-05-05

Engine control device that controls amount of fuel injected from port injection valve and cylinder injection valve based on load

#170
20160123253
2016-05-05

Control device for internal combustion engine

#171
20160123193
2016-05-05

Collapsible pushrod valve actuation system for a reciprocating piston machine cylinder

#172
20160115828
2016-04-28

Camshaft adjuster

#173
20160108913
2016-04-21

Rotor for a cam phaser with improved properties

#174
20160102620
2016-04-14

Method for controlling vibrations during transitions in a variable displacement engine

#175
20160084177
2016-03-24

Internal combustion engine with exhaust turbomachines

#176
20160084119
2016-03-24

Variable valve mechanism of internal combustion engine

#177
20160076471
2016-03-17

Engine cylinder bank-to-bank torque imbalance correction

#178
20160076409
2016-03-17

Valve opening and closing timing control device

#179
20160076408
2016-03-17

Valve opening and closing timing control device

#180
20160069223
2016-03-10

Variable valve timing control apparatus of internal combustion engine

#181
20160061123
2016-03-03

Control device for an internal combustion engine

#182
20160061063
2016-03-03

Valve timing controller

#183
20160047337
2016-02-18

Coordination of secondary air and blow-through air delivery

#184
20160040616
2016-02-11

System, method, and apparatus for managing aftertreatment temperature

#185
20160032795
2016-02-04

Valve timing control device for internal combustion engine

#186
20160032788
2016-02-04

Variable valve device for internal combustion engine

#187
20160024977
2016-01-28

Valve timing control apparatus

#188
20160024976
2016-01-28

Actuator for hydraulic valve of cam phaser and hydraulic valve with actuator for cam phaser

#189
20150361914
2015-12-17

Preignition restraining device

#190
20150354417
2015-12-10

Variable intake throttle valve with spring

#191
20150345410
2015-12-03

Supercharged applied ignition internal combustion engine with exhaust-gas turbocharging and method for operating an internal combustion engine of said type

#192
20150345347
2015-12-03

Intake valve closure control for dual-fuel engines

#193
20150345345
2015-12-03

Electric motor driven simple planetary cam phaser

#194
20150345344
2015-12-03

Trapped support pin for spiral spring retention in a camshaft phaser

#195
20150345342
2015-12-03

DESIGN METHOD OF SHORT DURATION CAM, SHORT DURATION CAM, VARIABLE VALVE LIFT APPARATUS INCLUDING THE SAME, AND DESIGN METHOD OF CAM

#196
20150330313
2015-11-19

Control system for internal combustion engine

#197
20150330265
2015-11-19

Control device of internal combustion engine and variable valve device of internal combustion engine

#198
20150322869
2015-11-12

Internal combustion engine using variable valve lift and skip fire control

#199
20150322830
2015-11-12

Electromagnetic actuating apparatus

#200
20150322824
2015-11-12

High Tension Valve Spring and Valve Float Eliminator

#201
20150315938
2015-11-05

Device for changing the relative angular position of a camshaft with respect to a crankshaft of an internal combustion engine

#202
20150308301
2015-10-29

Hydraulic rolling cylinder deactivation systems and methods

#203
20150285105
2015-10-08

Oil control valve

#204
20150275710
2015-10-01

Control system for engine

#205
20150240736
2015-08-27

Linear valve actuator system and method for controlling valve operation

#206
20150240674
2015-08-27

Modular electrically actuated camshaft phaser

#207
20150184556
2015-07-02

Variable valve actuating mechanism for OHV engine

#208
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

#209
20150175157
2015-06-25

HYBRID VEHICLE

#210
20150167505
2015-06-18

Centering slot for internal combustion engine

#211
20150167504
2015-06-18

Oil pressure control valve and valve timing controller

#212
20150167503
2015-06-18

Valve control system for internal combustion engines and method of operation thereof

#213
20150159523
2015-06-11

Engine

#214
20150144113
2015-05-28

METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE

#215
20150144084
2015-05-28

Valve timing adjusting apparatus

#216
20150128890
2015-05-14

Rocker arm

#217
20150114375
2015-04-30

Method for controlling variable valve lift apparatus and variable valve lift system

#218
20150114330
2015-04-30

Variable valve device that varies lift amount of valve

#219
20150108383
2015-04-23

Mechanically controllable valve drive arrangement

#220
20150107540
2015-04-23

Camshaft assembly

#221
20150101553
2015-04-16

Engine having continuous variable timing device

#222
20150096512
2015-04-09

Continuously variable valve lift mechanism

#223
20150075465
2015-03-19

Rotor for variable valve timing system and VVT system comprising the rotor

#224
20150075462
2015-03-19

Valve timing adjusting device

#225
20150068490
2015-03-12

MULTI-FUEL ENGINE WITH VARIABLE VALVE TIMING

#226
20150068476
2015-03-12

Engine having continuously variable valve timing mechanism

#227
20150068475
2015-03-12

Continuously variable valve lift/timing apparatus

#228
20150068474
2015-03-12

ENGINE HAVING VARIABLE VALVE TIMING DEVICE

#229
20150068473
2015-03-12

MULTIPLE VARIABLE VALVE LIFT APPARATUS

#230
20150059668
2015-03-05

Continuous variable valve lift device

#231
20150047586
2015-02-19

Mechanically controllable valve train assembly, internal combustion engine and method for operating an internal combustion engine

#232
20150027573
2015-01-29

Electromagnetic valve

#233
20150013636
2015-01-15

Camshaft adjuster and stator cover unit for automatic adjustment of a locking device

#234
20150007789
2015-01-08

Valve gear

#235
20140331949
2014-11-13

Internal Combustion Engine Valve Train Device

#236
20140318485
2014-10-30

INTERNAL COMBUSTION ENGINE VALVE DRIVE ADJUSTMENT DEVICE

#237
20140311432
2014-10-23

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

#238
20140299082
2014-10-09

Continuously variable valve lift device

#239
20140299080
2014-10-09

Method for estimating the angular position of a crankshaft for accelerating the starting of an internal combustion engine

#240
20140261264
2014-09-18

Variable valve timing apparatus and internal combustion engine incorporating the same

#241
20140251246
2014-09-11

Method and systems for variable valve timing for a V-engine with a single central camshaft

#242
20140251242
2014-09-11

Engine valve position sensing systems and methods

#243
20140238323
2014-08-28

Valve operating device of engine

#244
20140224196
2014-08-14

Crankshaft

#245
20140216396
2014-08-07

Direct injection gasoline engine and method of controlling the direct injection gasoline engine

#246
20140216376
2014-08-07

Coil and solenoid valve

#247
20140216372
2014-08-07

Valve timing control system of internal combustion engine

#248
20140190433
2014-07-10

Variable valve actuation apparatus, system, and method

#249
20140182535
2014-07-03

INTERNAL COMBUSTION ENGINE VALVETRAIN

#250
20140182533
2014-07-03

Valve actuation mechanism and automotive vehicle comprising such a valve actuation mechanism

#251
20140182531
2014-07-03

Variable valve lift apparatus

#252
20140165939
2014-06-19

Engine valve timing control apparatus

#253
20140165938
2014-06-19

Valve-timing control apparatus for internal combustion engine

#254
20140165776
2014-06-19

Camshaft with an axially displaceable cam pack

#255
20140158074
2014-06-12

Concentric camshaft phaser torsional drive mechanism

#256
20140150743
2014-06-05

Cam element for a valve drive train device

#257
20140144401
2014-05-29

Camshaft having an axially displaceable cam pack

#258
20140144400
2014-05-29

Valve actuation mechanism and automotive vehicle comprising such a valve actuation mechanism

#259
20140144399
2014-05-29

Valve timing adjusting system

#260
20140144282
2014-05-29

Camshaft with axially movable cam pack

#261
20140137826
2014-05-22

Camshaft with an axially displaceable cam pack

#262
20140137820
2014-05-22

Electromagnetic actuating device and camshaft adjuster

#263
20140116364
2014-05-01

Method and mechanism to confirm engine timing

#264
20140102408
2014-04-17

MULTI-CYLINDER INTERNAL COMBUSTION ENGINE USING EXHAUST GASES TO INCREASE CYLINDER FILLING

#265
20140102390
2014-04-17

Internal combustion engine and method for operating an internal combustion engine

#266
20140090615
2014-04-03

Split cycle phase variable reciprocating piston spark ignition engine

#267
20140083384
2014-03-27

Centering slot for internal combustion engine

#268
20140083382
2014-03-27

Camshaft for an internal combustion engine

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20140083380
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Variable valve mechanism of internal combustion engine

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20140083379
2014-03-27

Valve timing control apparatus of internal combustion engine

#271
20140076251
2014-03-20

Apparatus and method for controlling variable valve timing mechanism

#272
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2014-03-13

Valve open/close timing control device

#273
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2014-03-13

Variable valve timing device

#274
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2014-03-06

VALVE OPENING-CLOSING TIMING CONTROL APPARATUS

#275
20140048025
2014-02-20

VALVE TIMING CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE

#276
20140048024
2014-02-20

Hydraulic valve train of an internal combustion engine

#277
20140041607
2014-02-13

Control system for internal combustion engine

#278
20140041605
2014-02-13

Electro-hydraulic variable valve lift apparatus

#279
20140033998
2014-02-06

Variable valve phasing lift and duration

#280
20140014057
2014-01-16

Heat transferring engine valve for fuel conservation

#281
20140007829
2014-01-09

Variable travel valve apparatus for an internal combustion engine

#282
20140007826
2014-01-09

Engine control device

#283
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Valve apparatus for an internal combustion engine

#284
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2013-12-05

Control device for internal combustion engine

#285
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2013-12-05

Engine with variable valve timing mechanism

#286
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Rocker assembly having improved durability

#287
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2013-11-21

Internal combustion engine valve actuation control arrangement

#288
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Internal combustion engine

#289
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2013-11-21

Mechanically controllable valve-train assembly

#290
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2013-11-21

VALVE TRAIN ACTUATING DEVICE FOR AN INTERNAL COMBUSTION ENGINE

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Variable valve mechanism

#292
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2013-11-14

System for detecting malfunction of variable valve lift apparatus and method for the same

#293
20130291835
2013-11-07

Control device for internal combustion engine

#294
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2013-10-31

Method for controlling a valve control system with variable valve lift of an internal combustion engine by operating a compensation in response to the deviation of the characteristics of a working fluid with respect to nominal conditions

#295
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2013-10-31

Variable valve actuating apparatus for internal combustion engine

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Valve housing for a control valve of a camshaft adjusting system, and method for producing a valve housing

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2013-10-24

Internal combustion engine

#298
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2013-10-24

Variable valve operating apparatus for internal combustion engine

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2013-10-24

Internal-combustion engine with cylinders that can be deactivated, in which the deactivated cylinders are used as pumps for recirculating the exhaust gases into the active cylinders, and method for controlling said engine

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2013-10-17

Valve timing control device