Patents-Review.com
ClassID:

137255 ⎘

F01L3/08 - CPC Classification

Classification description:

Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof Valves guides; Sealing of valve stem, e.g. sealing by lubricant

Sub-classes:
Recent Application in this class:
#1
20260022676
2026-01-22

AIR-COOLED, FOUR-STROKE AVIATION ENGINE

 #2
20260022648
2026-01-22

INTERNAL COMBUSTION ENGINE

 #3
20250389212
2025-12-25

APPLICATOR FOR SEMI-FLUID MATERIALS

 #4
20250035016
2025-01-30

No Lash Dual Stem I.C.E. valve

 #5
20240392707
2024-11-28

Valvetrain spacer

 #6
20240337227
2024-10-10

AIR-COOLED, FOUR-STROKE AVIATION ENGINE

 #7
20240167400
2024-05-23

A CYLINDER HEAD FOR A LEAN-BURN GASOLINE ENGINE

 #8
20240141810
2024-05-02

Valve stem seal comprising a valve rotating device

 #9
20230313713
2023-10-05

Engine valve assembly including detent mechanism configured to increase force biasing valve toward closed position when valve is at or near closed position

 #10
20230175455
2023-06-08

Liquid-cooled cylinder head

 #11
20230127085
2023-04-27

Sintered alloy valve guide and method of producing sintered alloy valve guide

 #12
20230040082
2023-02-09

Air-cooled, four-stroke aviation engine

 #13
20230021872
2023-01-26

Valve stem seal

 #14
20220307601
2022-09-29

VALVE STEM SEAL

 #15
20220307391
2022-09-29

PLATE VALVE FOUR STOKE HEAD

 #16
20220282645
2022-09-08

Poppet valve and internal combustion piston engine head including same

 #17
20220154605
2022-05-19

Valve spring retainer incorporating lubrication oil trap

 #18
20220082062
2022-03-17

Liquid-cooled cylinder head

 #19
20210388742
2021-12-16

Valve rotating device

 #20
20210340890
2021-11-04

Stem seal for valve assembly of machine engine

 #21
20210323085
2021-10-21

Corrosion and Wear Resistant Overlay, Method for Forming Corrosion and Wear Resistant Overlay, and Corrosion and Wear Resistant Valve

 #22
20210277810
2021-09-09

System for cooling exhaust valve of a reciprocating engine

 #23
20210231048
2021-07-29

DOUBLE ACTING PISTON ENGINES

 #24
20210131317
2021-05-06

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

 #25
20210131316
2021-05-06

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

 #26
20210095581
2021-04-01

Sealing device and manufacturing method therefor

 #27
20210054767
2021-02-25

Lifter providing improved cam lobe lubrication

 #28
20210025528
2021-01-28

Valve guide with integral assembly support

 #29
20200391288
2020-12-17

Sintered valve guide and method for producing same

 #30
20200376544
2020-12-03

POWDER METALLURGICALLY PRODUCED COMPONENT

 #31
20200332746
2020-10-22

Valve arrangement and valve guide

 #32
20200300130
2020-09-24

System for cooling exhaust valve of a reciprocating engine

 #33
20200232354
2020-07-23

Internal combustion engine with at least one hollow-head valve

 #34
20200165945
2020-05-28

Valve guide made of iron-based sintered alloy and method of producing same

 #35
20200149656
2020-05-14

VALVE STEM SEAL

 #36
20200011216
2020-01-09

Sliding member, and sliding member of internal combustion engine

 #37
20200011213
2020-01-09

Valve arrangement and valve guide

 #38
20190331009
2019-10-31

INTERNALLY COOLED VALVE GUIDE

 #39
20190309662
2019-10-10

Gasket with an improved heat dissipation capacity for a valve of an internal combustion engine

 #40
20190309661
2019-10-10

Gasket for a valve of an internal combustion engine

 #41
20190249575
2019-08-15

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

 #42
20190234248
2019-08-01

Cylinder head arrangement for variable valve actuation rocker arm assemblies

 #43
20190153911
2019-05-23

Internal combustion engine and straddled vehicle having the same

 #44
20190143415
2019-05-16

Valve seat ring

 #45
20190136982
2019-05-09

GAS EXCHANGE VALVE FOR AN INTERNAL COMBUSTION ENGINE

 #46
20190128151
2019-05-02

System for cooling exhaust valve of a reciprocating engine

 #47
20190085792
2019-03-21

Valve arrangement

 #48
20190072013
2019-03-07

Valve shield for an internal combustion engine

 #49
20190063271
2019-02-28

Valve for an internal combustion engine

 #50
20180371965
2018-12-27

Frustoconically supported valve stem seal assembly

 #51
20180363802
2018-12-20

Valve stem seal

 #52
20180291774
2018-10-11

Internal combustion engine comprising a valve train with valve springs and method for mounting such a valve spring

 #53
20180274402
2018-09-27

Valve cover extension tube with integrated sensor

 #54
20180245486
2018-08-30

Valve arrangement and valve guide

 #55
20180209312
2018-07-26

Valve stem seal assembly with a symmetrical retainer

 #56
20180171836
2018-06-21

VALVE GUIDE

 #57
20180163580
2018-06-14

Valve stem seal and hermetic sealing structure

 #58
20180135476
2018-05-17

Gas Exchange Valve For An Internal Combustion Engine And Internal Combustion Engine

 #59
20180112564
2018-04-26

Gasket for a valve of an internal combustion engine

 #60
20180106214
2018-04-19

Intake valve fairing for a cylinder head of an engine

 #61
20180058275
2018-03-01

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

 #62
20180016952
2018-01-18

SEALING UNIT AND FLUID ENGINE

 #63
20170342873
2017-11-30

Windowed intake valve stem

 #64
20170298790
2017-10-19

Highly thermally conductive valve seat ring

 #65
20170298789
2017-10-19

Gasket for a valve of an internal combustion engine

 #66
20170291268
2017-10-12

Method of making a valve stem seal with formable retainer tabs

 #67
20170183988
2017-06-29

Valve operating device for internal combustion engine

 #68
20170167316
2017-06-15

END REINFORCED VALVE STEM SEAL ASSEMBLY

 #69
20170101929
2017-04-13

ENGINE CONFIGURATION HAVING VARIOUS DISPLACEMENTS

 #70
20170089224
2017-03-30

Rocker base for valve actuation system

 #71
20170089223
2017-03-30

Valve actuation system

 #72
20170037750
2017-02-09

Combustion engine with pneumatic valve return spring

 #73
20170009616
2017-01-12

Valve stem seal

 #74
20160363093
2016-12-15

Engine exhaust valve shield

 #75
20160348545
2016-12-01

Sliding mechanism

 #76
20160341315
2016-11-24

Seal for sealing a valve shaft, tool and method for mounting a seal to a guide element of a valve shaft

 #77
20160333750
2016-11-17

Locator for use in a valvetrain of a cylinder head of an internal combustion engine

 #78
20160312668
2016-10-27

Double/triple-layer valve guide

 #79
20160281550
2016-09-29

System for lubricating valve assembly of engine

 #80
20160273419
2016-09-22

SELF-LUBRICATING SEALED VALVE GUIDE

 #81
20160265473
2016-09-15

Friction-welded structure assembly, water-cooled internal combustion engine cylinder head, water-cooled internal combustion engine and machine equipped with same

 #82
20160256965
2016-09-08

Method of manufacturing a hollow poppet valve

 #83
20160201523
2016-07-14

Compact valve bridge assembly having cartridge insert

 #84
20160186620
2016-06-30

MULTI-MATERIAL VALVE GUIDE SYSTEM AND METHOD

 #85
20160160700
2016-06-09

SINTERED ALLOY VALVE GUIDE AND ITS PRODUCTION METHOD

 #86
20160138484
2016-05-19

Systems, methods, and devices for valve stem position sensing

 #87
20160115830
2016-04-28

Detection apparatus for at least one of temperature and pressure in a cylinder of an internal combustion engine

 #88
20160108863
2016-04-21

Apparatus for reducing friction in EGR driver

 #89
20160032793
2016-02-04

Exhaust valve assembly for a two-stroke internal combustion engine

 #90
20150377092
2015-12-31

Sliding cam actuator having a seal

 #91
20150354727
2015-12-10

Hollow poppet valve

 #92
20150354417
2015-12-10

Variable intake throttle valve with spring

 #93
20150322828
2015-11-12

Highly thermally conductive valve seat ring

 #94
20150275343
2015-10-01

Iron-base sintered alloy material for valve seat insert and method for manufacturing the same

 #95
20150167850
2015-06-18

Gasket for a valve of an internal combustion engine

 #96
20150152754
2015-06-04

Seal

 #97
20150123352
2015-05-07

Gasket for a valve of an internal-combustion engine

 #98
20150014565
2015-01-15

Check valve driving device for injecting gas

 #99
20150001430
2015-01-01

Check valve for injecting gas

 #100
20140360453
2014-12-11

VALVE GUIDE INSERT WITH FRICTIONAL PRE-BROACH RETENTION FEATURE

 #101
20140338630
2014-11-20

Dosing valve for additives at risk of freezing, method for producing a dosing valve and motor vehicle

 #102
20140305398
2014-10-16

Cylinder head comprising a shroud

 #103
20140251253
2014-09-11

Pressure support for engine valve stem seals

 #104
20140130766
2014-05-15

Valve stem seal with gas relief features

 #105
20140096734
2014-04-10

Intake air control system for multi-cylinder combustion engine

 #106
20140077459
2014-03-20

Valve stem seal device

 #107
20140014058
2014-01-16

Cylinder structure for internal combustion engine

 #108
20130312506
2013-11-28

Systems, methods, and devices for valve stem position sensing

 #109
20130276728
2013-10-24

Valve system

 #110
20130200574
2013-08-08

Hybrid valve stem seal retainer assembly

 #111
20130192555
2013-08-01

ENGINE EXHAUST VALVE STEM SEAL FOR HIGH TEMPERATURE AND PRESSURE APPLICATIONS

 #112
20130104836
2013-05-02

Combustion chamber promoting increased air induction flow

 #113
20130082203
2013-04-04

Valve stem seal

 #114
20130032118
2013-02-07

Low profile valve stem seal in cylinder head

 #115
20130015625
2013-01-17

Eccentricity tolerant valve stem seal assembly

 #116
20130014720
2013-01-17

Engine valve device

 #117
20130000588
2013-01-03

VALVE STEM SEAL FOR A COMBUSTION ENGINE

 #118
20120325175
2012-12-27

Vehicle valve stem seal

 #119
20120267861
2012-10-25

Valve stem seal with gas relief features

 #120
20120199093
2012-08-09

Lubeless valve assembly for engine

 #121
20120111297
2012-05-10

Valve stem seal

 #122
20120085310
2012-04-12

ENGINE COMPONENT COMPRISING CORROSION-PROTECTION LAYER AND METHOD FOR MANUFACTURE OF ENGINE COMPONENTS

 #123
20120085309
2012-04-12

Sealing of sleeve valves

 #124
20120082585
2012-04-05

Sintered material for valve guides and production method therefor

 #125
20120082584
2012-04-05

Sintered material for valve guides and production method therefor

 #126
20110297112
2011-12-08

Forced air valve guide for an internal combustion engine

 #127
20110162612
2011-07-07

Iron-chromium alloy with improved compressive yield strength and method of making and use thereof

 #128
20110162607
2011-07-07

Single poppet valve cylinder head assembly for internal combustion engine

 #129
20110146448
2011-06-23

Sintered valve guide and production method therefor

 #130
20110126791
2011-06-02

Exhaust poppet valve and solution heat treatment method of the same

 #131
20110061633
2011-03-17

Internal combustion engine having intake manifold combined with holding tank

 #132
20110031886
2011-02-10

Plasma apparatus using a valve

 #133
20110030347
2011-02-10

After-treatment apparatus for exhaust gas right after a combustion chamber

 #134
20110024666
2011-02-03

Reduced inertia valve stem seal flange

 #135
20100300417
2010-12-02

INTERNAL COMBUSTION ENGINE HAVING A TRANSITIONALLY SEGREGATED COMBUSTION CHAMBER

 #136
20100295252
2010-11-25

Two-piece valve stem seal

 #137
20100288219
2010-11-18

LASH ADJUSTER

 #138
20100084821
2010-04-08

Gasket for a valve in an internal combustion engine

 #139
20100050973
2010-03-04

Corrosion resistant valve guide

 #140
20090288619
2009-11-26

Electromagnetic valve actuator and valve guide having reduced temperature sensitivity

 #141
20090256315
2009-10-15

SEALING DEVICE

 #142
20090241870
2009-10-01

VARIABLE INTAKE VALVE ASSEMBLY FOR INTERNAL COMBUSTION ENGINE

 #143
20090229560
2009-09-17

INTERNAL COMBUSTION ENGINE HAVING A REDUCED CYLINDER HEAD HEIGHT

 #144
20090151708
2009-06-18

INTERNAL COMBUSTION ENGINE HAVING A SELECTIVELY INSULATED COMBUSTION CHAMBER

 #145
20090146382
2009-06-11

Valve stem seal with gas relief features

 #146
20090145393
2009-06-11

Valve stem seal with gas relief features

 #147
20090126673
2009-05-21

Thermally insulating element for an engine valve assembly

 #148
20090126666
2009-05-21

Engine valve operating system

 #149
20090095247
2009-04-16

Intake valve for lessening accumulation of high boiling fraction from fuel

 #150
20090044775
2009-02-19

Hydraulic lash adjuster with damping device

 #151
20080276890
2008-11-13

Engine valve operating system

 #152
20080190394
2008-08-14

CYLINDER HEAD WITH MULTIPLE OIL PASSAGES AND METHOD FOR MANUFACTURE

 #153
20080157482
2008-07-03

Gasket for a valve in an internal combustion engine

 #154
20080157480
2008-07-03

Gasket for a valve in an internal combustion engine

 #155
20070278441
2007-12-06

Articulating guide seal

 #156
20070246007
2007-10-25

Engine valve assembly having holding tank with return valve and discharge valve in the valve assembly

 #157
20070227631
2007-10-04

Copper-zinc alloy for a valve guide

 #158
20070194260
2007-08-23

Valve device

 #159
20070175705
2007-08-02

Lubricating oil dosing arrangement

 #160
20070137604
2007-06-21

Motorcycle engine

 #161
20070022997
2007-02-01

GASKET FOR A VALVE OF AN INTERNAL COMBUSTION ENGINE

 #162
20070017475
2007-01-25

Valve guide structure

 #163
20060278840
2006-12-14

Valve stem seal assembly

 #164
20060174982
2006-08-10

Heat treated valve guide and method of making

 #165
20060169942
2006-08-03

Oil metering valve seal

 #166
20060163818
2006-07-27

Shaft seal with memory metal retainer spring

 #167
20060144369
2006-07-06

Engine

 #168
20060081202
2006-04-20

Valve lift sensor

 #169
20060065227
2006-03-30

Upside-down square-up valve stem seal

 #170
20060045786
2006-03-02

Method of making valve guide by powder metallurgy process

 #171
20060032328
2006-02-16

Sintered valve guide and manufacturing method thereof

 #172
20060027977
2006-02-09

Valve stem sealing assembly

 #173
20050241699
2005-11-03

Device for measuring the lift of poppet valves

 #174
20050241600
2005-11-03

Valve train for internal combustion engine

 #175
20050115547
2005-06-02

Internal combustion engine and working cycle

 #176
20050098162
2005-05-12

Internal combustion engine and working cycle

 #177
20050087164
2005-04-28

Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines

 #178
20050040603
2005-02-24

Valve stem seal assembly with changeable cap

 #179
20050022876
2005-02-03

Actuator for actuating a lift valve

 #180
20050001702
2005-01-06

Electromechanical valve actuator

 #181
20050001196
2005-01-06

Valve stem seal assembly

 #182
16407218
2020-09-22

Switchable rocker arm

 #183
14490472
2016-12-13

Timing gear system