FR3092614B1 - Gasoline engine inlet valve - Google Patents

Gasoline engine inlet valve Download PDF

Info

Publication number
FR3092614B1
FR3092614B1 FR1901239A FR1901239A FR3092614B1 FR 3092614 B1 FR3092614 B1 FR 3092614B1 FR 1901239 A FR1901239 A FR 1901239A FR 1901239 A FR1901239 A FR 1901239A FR 3092614 B1 FR3092614 B1 FR 3092614B1
Authority
FR
France
Prior art keywords
valve
gasoline engine
valve stem
head
transition zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1901239A
Other languages
French (fr)
Other versions
FR3092614A1 (en
Inventor
Romain Boubennec
Perez Saul Ferreira
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Original Assignee
Renault SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR1901239A priority Critical patent/FR3092614B1/en
Publication of FR3092614A1 publication Critical patent/FR3092614A1/en
Application granted granted Critical
Publication of FR3092614B1 publication Critical patent/FR3092614B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—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
    • F01L3/06—Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/01—Absolute values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/02—Formulas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L’invention concerne une soupape d’admission (1) de moteur à essence de véhicule automobile, comprenant : - une tige de soupape (11) d’axe longitudinal (L), - une tête de soupape (13) destinée à ouvrir ou à fermer une chambre de combustion (3) du moteur à essence, et- une zone de transition (12) reliant la tige de soupape (11) à la tête de soupape (13). Selon l’invention, la tige de soupape (11) comprend au moins deux portions cylindriques de diamètres différents (110,111, 112), dont une portion cylindrique primaire (110) présentant un premier rayon (R1) supérieur au rayon (R2, R3) de la ou des portion(s) restante(s) (111, 112) de la tige de soupape (11). La zone de transition (12) relie la portion cylindrique primaire (110) à la tête de la soupape (13). Enfin, la zone de transition (12) est sous forme d’un cône tronqué comprenant une grande base (122) située du côté de la tête de la soupape (13) et une petite base (121) située du côté de la portion cylindrique primaire (110).Figure pour l’abrégé : figure 1The invention relates to an inlet valve (1) of a motor vehicle gasoline engine, comprising: - a valve stem (11) of longitudinal axis (L), - a valve head (13) intended to open or to close a combustion chamber (3) of the gasoline engine, and- a transition zone (12) connecting the valve stem (11) to the valve head (13). According to the invention, the valve stem (11) comprises at least two cylindrical portions of different diameters (110, 111, 112), including a primary cylindrical portion (110) having a first radius (R1) greater than the radius (R2, R3) of the remaining portion(s) (111, 112) of the valve stem (11). The transition zone (12) connects the primary cylindrical portion (110) to the valve head (13). Finally, the transition zone (12) is in the form of a truncated cone comprising a large base (122) located on the side of the head of the valve (13) and a small base (121) located on the side of the cylindrical portion primary (110).Figure for abstract: Figure 1

FR1901239A 2019-02-07 2019-02-07 Gasoline engine inlet valve Active FR3092614B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1901239A FR3092614B1 (en) 2019-02-07 2019-02-07 Gasoline engine inlet valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1901239A FR3092614B1 (en) 2019-02-07 2019-02-07 Gasoline engine inlet valve
FR1901239 2019-02-07

Publications (2)

Publication Number Publication Date
FR3092614A1 FR3092614A1 (en) 2020-08-14
FR3092614B1 true FR3092614B1 (en) 2022-08-05

Family

ID=67441243

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1901239A Active FR3092614B1 (en) 2019-02-07 2019-02-07 Gasoline engine inlet valve

Country Status (1)

Country Link
FR (1) FR3092614B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB401096A (en) * 1931-10-14 1933-11-09 Wilcox Rich Corp Improvements in or relating to valves and methods of making the same
US4838218A (en) * 1986-06-12 1989-06-13 Ngk Spark Plug Co., Ltd. Ceramic valve supporting structure in use for internal combustion engine
DE102007013947A1 (en) * 2007-03-23 2008-09-25 Schaeffler Kg Valve gear of an internal combustion engine with a deactivatable Tellerhubventil
US9175788B2 (en) * 2012-10-02 2015-11-03 Nittan Valve Co., Ltd. Hollow poppet valve
US9751164B2 (en) * 2013-11-21 2017-09-05 Nittan Valve Co., Ltd. Method of manufacturing a hollow poppet valve
WO2018191951A1 (en) * 2017-04-17 2018-10-25 赵毛兴 Engine valve with heat insulation sleeve for preventing high temperature failures

Also Published As

Publication number Publication date
FR3092614A1 (en) 2020-08-14

Similar Documents

Publication Publication Date Title
FR2816668A1 (en) HIGH PRESSURE FUEL ACCUMULATOR FOR A FUEL INJECTION SYSTEM OF AN INTERNAL COMBUSTION ENGINE
FR2783284A1 (en) FUEL INJECTION SYSTEM FOR A DIESEL INTERNAL COMBUSTION ENGINE
FR3092614B1 (en) Gasoline engine inlet valve
CA3020054A1 (en) Improved injectors for gas turbine combustion chamber
EP0565410B1 (en) Integrated rail device for the exhaust gas recirculation of an internal combustion engine
JPH09126093A (en) Fuel injection valve for internal combusion engine
CN106687668B (en) It remanufactures the method for rocker arm and remanufactures rocker arm
FR3092613B1 (en) Diesel engine inlet valve
EP1529935B1 (en) Jet for piston cooling with reduced inter-axle
JP2009293587A (en) Oil jet structure
FR2719343A1 (en) One-piece four-stroke engine block assembly.
FR2863674A1 (en) Driveshaft`s universal joint jaw for steering column, has connection unit with portion having outer face, and articulation yoke with end having inner face, where faces have conjugated forms to have desired orientation between yoke and unit
US1881259A (en) Valve for internal combustion engines
FR2766523A1 (en) FUEL INJECTION VALVE WITH DIRECT INJECTION AND ELECTROVALVE CONTROL FOR MULTI-CYLINDER ENGINE
EP0908605A2 (en) Valve operating system for internal combustion engines which can be disabled
US20160084118A1 (en) Valve operating system
FR2876750A1 (en) Injection nozzle e.g. sac type injection nozzle, for direct injection diesel engine, has holes with different inlet and identical outlet diameters equal to/lesser than inlet diameters, and convergent in direction of combustion chamber
CA2265525C (en) Device dispensing fuel for supplying an internal combustion engine cylinder
FR2812030A1 (en) "INTERNAL COMBUSTION ENGINE"
FR2463861A1 (en) FUEL INJECTOR FOR DIESEL ENGINE
FR2818312A1 (en) GAS INTAKE SYSTEM IN A COMBUSTION CHAMBER WITH INTAKE CONDUIT
US11067030B2 (en) Modular cylinder head for engine blocks
FR2862351A1 (en) Fuel injector for internal combustion engine, has transversal grooves formed on one conical surface of valve sealing surface, where conical surface is applied against valve seat and comprises angle of opening greater than that of seat
EP1944477B1 (en) Valve seat machined in several chamfers
ATE230820T1 (en) PISTON AND PISTON ROD FOR AN INTERNAL COMBUSTION ENGINE

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20200814

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

CA Change of address

Effective date: 20221005

PLFP Fee payment

Year of fee payment: 5

PLFP Fee payment

Year of fee payment: 6