FR2923268B1 - HEAD OF AN INTERNAL COMBUSTION ENGINE COMPRISING AN INTAKE DUCT WITH A SLOPE SUITABLE FOR GENERATING A TOURBILLON IN THE CYLINDER - Google Patents

HEAD OF AN INTERNAL COMBUSTION ENGINE COMPRISING AN INTAKE DUCT WITH A SLOPE SUITABLE FOR GENERATING A TOURBILLON IN THE CYLINDER

Info

Publication number
FR2923268B1
FR2923268B1 FR0707756A FR0707756A FR2923268B1 FR 2923268 B1 FR2923268 B1 FR 2923268B1 FR 0707756 A FR0707756 A FR 0707756A FR 0707756 A FR0707756 A FR 0707756A FR 2923268 B1 FR2923268 B1 FR 2923268B1
Authority
FR
France
Prior art keywords
intake duct
internal combustion
combustion engine
tourbillon
cylinder
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
FR0707756A
Other languages
French (fr)
Other versions
FR2923268A1 (en
Inventor
Johann William
Geraldine Slama
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 FR0707756A priority Critical patent/FR2923268B1/en
Publication of FR2923268A1 publication Critical patent/FR2923268A1/en
Application granted granted Critical
Publication of FR2923268B1 publication Critical patent/FR2923268B1/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
    • F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/40—Squish effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/48—Tumble motion in gas movement in cylinder
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

La présente invention concerne une culasse (18) d'un moteur à combustion interne percée d'un conduit d'admission (1) dont la paroi cylindrique comporte une partie d'axe rectiligne (53) située en amont d'une partie d'axe courbé (50) qui présente un côté intérieur (51) de plus petit rayon de courbure et qui débouche sur un logement (26) pour un siège de soupape (25) ouvert sur une chambre de combustion (3). Selon l'invention, la partie d'axe rectiligne de la paroi cylindrique du conduit d'admission comprend une pente (41) inclinée vers le centre du conduit d'admission, située à proximité du côté intérieur de la partie d'axe courbé de la paroi cylindrique de ce conduit d'admission.Elle concerne également un moteur comprenant une telle culasse.The present invention relates to a cylinder head (18) of an internal combustion engine pierced with an intake conduit (1) whose cylindrical wall comprises a rectilinear axis portion (53) located upstream of a portion of curved axle (50) which has an inner side (51) with a smaller radius of curvature and which opens onto a housing (26) for a valve seat (25) open to a combustion chamber (3). According to the invention, the rectilinear axis part of the cylindrical wall of the intake duct comprises a slope (41) inclined towards the center of the intake duct, located near the inner side of the curved axis part of the cylindrical wall of this intake conduit. It also relates to an engine comprising such a cylinder head.

FR0707756A 2007-11-05 2007-11-05 HEAD OF AN INTERNAL COMBUSTION ENGINE COMPRISING AN INTAKE DUCT WITH A SLOPE SUITABLE FOR GENERATING A TOURBILLON IN THE CYLINDER Active FR2923268B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0707756A FR2923268B1 (en) 2007-11-05 2007-11-05 HEAD OF AN INTERNAL COMBUSTION ENGINE COMPRISING AN INTAKE DUCT WITH A SLOPE SUITABLE FOR GENERATING A TOURBILLON IN THE CYLINDER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0707756A FR2923268B1 (en) 2007-11-05 2007-11-05 HEAD OF AN INTERNAL COMBUSTION ENGINE COMPRISING AN INTAKE DUCT WITH A SLOPE SUITABLE FOR GENERATING A TOURBILLON IN THE CYLINDER

Publications (2)

Publication Number Publication Date
FR2923268A1 FR2923268A1 (en) 2009-05-08
FR2923268B1 true FR2923268B1 (en) 2013-11-22

Family

ID=39582642

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0707756A Active FR2923268B1 (en) 2007-11-05 2007-11-05 HEAD OF AN INTERNAL COMBUSTION ENGINE COMPRISING AN INTAKE DUCT WITH A SLOPE SUITABLE FOR GENERATING A TOURBILLON IN THE CYLINDER

Country Status (1)

Country Link
FR (1) FR2923268B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2787208B1 (en) * 2013-04-05 2016-05-18 Fiat Group Automobiles S.p.A. Cylinder head for an internal-combustion engine with intake ducts having an air-deflecting projection
JP7003626B2 (en) * 2017-12-19 2022-01-20 三菱自動車工業株式会社 Intake structure of internal combustion engine
CN109538368A (en) * 2018-12-14 2019-03-29 力帆实业(集团)股份有限公司 Engine cylinder head of the air intake duct with retaining ring
FR3091906B1 (en) * 2019-01-21 2021-01-15 Ifp Energies Now Gas inlet duct generating aerodynamic movement of gas within a cylinder

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3352152B2 (en) * 1993-06-17 2002-12-03 ヤンマー株式会社 Intake swirl port shape of direct injection engine
JPH07317546A (en) * 1994-05-25 1995-12-05 Daihatsu Motor Co Ltd Suction device of internal combustion engine
JP3523529B2 (en) * 1999-06-15 2004-04-26 株式会社クボタ Direct intake port and helical intake port of engine
JP2004316609A (en) * 2003-04-18 2004-11-11 Toyota Motor Corp Internal combustion engine having intake port for forming tumble flow
JP3829818B2 (en) * 2003-04-18 2006-10-04 日産自動車株式会社 Intake device for internal combustion engine
JP4285149B2 (en) * 2003-08-19 2009-06-24 トヨタ自動車株式会社 Internal combustion engine
JP2005105946A (en) * 2003-09-30 2005-04-21 Mazda Motor Corp Intake device for engine
JP4561621B2 (en) * 2005-12-09 2010-10-13 トヨタ自動車株式会社 Intake device for internal combustion engine

Also Published As

Publication number Publication date
FR2923268A1 (en) 2009-05-08

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