FR2427478A1 - Procede de formation des orifices d'admission de moteurs a combustion interne - Google Patents

Procede de formation des orifices d'admission de moteurs a combustion interne

Info

Publication number
FR2427478A1
FR2427478A1 FR7913795A FR7913795A FR2427478A1 FR 2427478 A1 FR2427478 A1 FR 2427478A1 FR 7913795 A FR7913795 A FR 7913795A FR 7913795 A FR7913795 A FR 7913795A FR 2427478 A1 FR2427478 A1 FR 2427478A1
Authority
FR
France
Prior art keywords
internal combustion
combustion engines
machining
intake
training
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.)
Granted
Application number
FR7913795A
Other languages
English (en)
Other versions
FR2427478B1 (fr
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.)
Ricardo PLC
Original Assignee
Ricardo Consulting Engineers Ltd
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 Ricardo Consulting Engineers Ltd filed Critical Ricardo Consulting Engineers Ltd
Publication of FR2427478A1 publication Critical patent/FR2427478A1/fr
Application granted granted Critical
Publication of FR2427478B1 publication Critical patent/FR2427478B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
    • 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
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne une culasse moulée de moteur munie d'orifices d'admission hélicoïdaux. Selon l'invention, au moins 50 % de la surface de chacun des orifices d'admission sont usinés. Chaque orifice peut être formé en deux opérations d'usinage, l'une servant à former le conduit d'admission 10C et l'autre la cuvette 12C génératrice de tourbillon qui comporte une partie inférieure cylindrique et une partie supérieure hémisphérique. Un évidement 22C peut être formé par une troisième opération d'usinage dans un côté de la cuvette. Le conduit d'admission peut être muni, à son extrémité intérieure, d'un manchon rapporté 20C dont l'extrémité intérieure 21C fait saillie dans la cuvette et forme une barrière pour dévier le tourbillon du courant des gaz d'arrivée. Alternativement, l'orifice peut être formé asymétriquement par usinage au moyen d'une machine-outil à commande numérique, le manchon étant remplacé par une lèvre usinée. Application aux moteurs à combustion interne du type à injection.
FR7913795A 1978-05-31 1979-05-30 Procede de formation des orifices d'admission de moteurs a combustion interne Expired FR2427478B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25113/78A GB1600888A (en) 1978-05-31 1978-05-31 Inlet ports in ic engines

Publications (2)

Publication Number Publication Date
FR2427478A1 true FR2427478A1 (fr) 1979-12-28
FR2427478B1 FR2427478B1 (fr) 1985-07-05

Family

ID=10222425

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913795A Expired FR2427478B1 (fr) 1978-05-31 1979-05-30 Procede de formation des orifices d'admission de moteurs a combustion interne

Country Status (9)

Country Link
US (1) US4366787A (fr)
JP (1) JPS54156915A (fr)
DE (1) DE2922058C2 (fr)
ES (2) ES481077A1 (fr)
FR (1) FR2427478B1 (fr)
GB (1) GB1600888A (fr)
IT (1) IT1117766B (fr)
NL (1) NL179754C (fr)
SE (2) SE439340B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134038A1 (fr) * 1983-08-19 1985-03-13 Kabushiki Kaisha Toyota Chuo Kenkyusho Conduit d'admission pour moteur à combustion interne
EP0790398A1 (fr) * 1996-02-16 1997-08-20 Isuzu Motors Limited Moteur à combustion interne avec une pluralité de conduits d'admission par cylindres

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693215A (en) * 1982-09-18 1987-09-15 Kabushiki Kaisha Toyota Chuo Kenkyusho Inlet port for internal combustion engine
JPS5952038U (ja) * 1982-09-29 1984-04-05 三菱自動車工業株式会社 エンジンの吸気ポ−ト構造
JPS6056118A (ja) * 1983-09-05 1985-04-01 Toyota Central Res & Dev Lab Inc 圧縮着火式直接噴射内燃機関
US4606308A (en) * 1985-09-16 1986-08-19 General Motors Corporation Engine cylinder intake port
US4805569A (en) * 1987-02-13 1989-02-21 Mazda Motor Corporation Intake system for an engine
DE3924544A1 (de) * 1989-07-25 1991-02-07 Porsche Ag Stroemungskanal
DE3940838C1 (fr) * 1989-12-11 1991-06-20 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
AT283U1 (de) * 1994-08-09 1995-07-25 Avl Verbrennungskraft Messtech Verfahren zur herstellung von einlasskanaelen im zyylinderkopf einer brennkraftmaschine
JP3562165B2 (ja) * 1996-09-17 2004-09-08 日産自動車株式会社 ディーゼルエンジンの吸気ポート
US6003485A (en) * 1997-06-10 1999-12-21 Nissan Motor Co., Ltd. Helical intake port for an internal combustion engine
GB2332708A (en) * 1997-12-24 1999-06-30 Ford Global Tech Inc I.c. engine inlet port with sharp-edged swirl lip
GB9803633D0 (en) 1998-02-20 1998-04-15 Woodhouse Timothy C Internal combustion engines
US6874458B2 (en) * 2001-12-28 2005-04-05 Kohler Co. Balance system for single cylinder engine
US6739304B2 (en) 2002-06-28 2004-05-25 Kohler Co. Cross-flow cylinder head
US6684846B1 (en) 2002-07-18 2004-02-03 Kohler Co. Crankshaft oil circuit
US6732701B2 (en) 2002-07-01 2004-05-11 Kohler Co. Oil circuit for twin cam internal combustion engine
US6837206B2 (en) 2002-07-11 2005-01-04 Kohler Co. Crankcase cover with oil passages
US6837207B2 (en) 2002-07-18 2005-01-04 Kohler Co. Inverted crankcase with attachments for an internal combustion engine
US6752846B2 (en) * 2002-07-18 2004-06-22 Kohler Co. Panel type air filter element with integral baffle
US6742488B2 (en) 2002-07-18 2004-06-01 Kohler Co. Component for governing air flow in and around cylinder head port
US6978751B2 (en) 2002-07-18 2005-12-27 Kohler Co. Cam follower arm for an internal combustion engine
US20040221830A1 (en) * 2003-05-06 2004-11-11 Cummins Inc. Cylinder head with machined intake port and process for manufacturing
US7412974B2 (en) * 2005-12-12 2008-08-19 Gas Gorilla, Llc Device for enhancing fuel efficiency of internal combustion engines
US7556031B2 (en) 2005-12-12 2009-07-07 Global Sustainability Technologies, LLC Device for enhancing fuel efficiency of and/or reducing emissions from internal combustion engines
US7533641B1 (en) 2006-04-17 2009-05-19 Jason Stewart Jackson Poppet valve and engine using same
US7311068B2 (en) 2006-04-17 2007-12-25 Jason Stewart Jackson Poppet valve and engine using same
FR2924761A3 (fr) * 2007-12-07 2009-06-12 Renault Sas Culasse de moteur a combustion interne comprenant un conduit d'admission d'air semi-usine et procede de fabrication d'une telle culasse
FR2929990B1 (fr) * 2008-04-09 2010-05-21 Peugeot Citroen Automobiles Sa Moteur a combustion interne comprenant des conduits d'admission usines en chanfrein
FR2931893B1 (fr) * 2008-06-02 2011-10-14 Renault Sas Culasse a conduits d'admission elargis et moteur a combustion interne comportant une telle culasse.
FR2950932A1 (fr) * 2009-10-02 2011-04-08 Renault Sa Moteur a combustion et procede de fabrication d'un tel moteur.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE464617C (de) * 1928-08-23 Hermann Dorner Dipl Ing Lufteinlassventil fuer Dieselmaschinen mit luftloser Einspritzung und Drehung des Luftstroms
US3145696A (en) * 1962-08-31 1964-08-25 White Motor Co Internal combustion engine
DE1272627B (de) * 1964-12-09 1968-07-11 Motoren Werke Mannheim Ag Einlasskanal fuer Brennkraftmaschinen
DE1951253A1 (de) * 1969-10-10 1971-04-22 Linde Ag Ventilgesteuerte Kolbenbrennkraftmaschine
DE2164001C3 (de) * 1970-12-30 1980-07-31 S.A. Automobiles Citroen, Paris Zylinderkopf für Brennkraftmaschinen mit bearbeitetem Einlaßkanal
US3802404A (en) * 1971-12-28 1974-04-09 Citroen Sa Internal-combustion cylinder head assemblies
SE401239B (sv) * 1972-05-10 1978-04-24 List Hans Forbrenningsmotor av insprutningstyp
GB1506846A (en) * 1974-05-22 1978-04-12 Unilever Ltd Process for the preparation of proteinaceous edible elements
US4137886A (en) * 1975-03-11 1979-02-06 Nissan Diesel Motor Company, Ltd. Air intake system for an internal combustion engine
JPS529706A (en) * 1975-07-14 1977-01-25 Mazda Motor Corp Engine mixture burning in layers
JPS5294910A (en) * 1976-02-05 1977-08-10 Isuzu Motors Ltd Cylinder head processing method
US4207854A (en) * 1978-01-13 1980-06-17 Caterpillar Tractor Co. Inlet air passage for an engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134038A1 (fr) * 1983-08-19 1985-03-13 Kabushiki Kaisha Toyota Chuo Kenkyusho Conduit d'admission pour moteur à combustion interne
EP0790398A1 (fr) * 1996-02-16 1997-08-20 Isuzu Motors Limited Moteur à combustion interne avec une pluralité de conduits d'admission par cylindres

Also Published As

Publication number Publication date
FR2427478B1 (fr) 1985-07-05
IT1117766B (it) 1986-02-24
US4366787A (en) 1983-01-04
SE439340B (sv) 1985-06-10
NL7904268A (nl) 1979-12-04
ES247199Y (es) 1980-10-01
IT7949209A0 (it) 1979-05-28
JPS54156915A (en) 1979-12-11
DE2922058C2 (de) 1984-01-05
ES481077A1 (es) 1980-06-16
SE455804B (sv) 1988-08-08
DE2922058A1 (de) 1979-12-06
GB1600888A (en) 1981-10-21
NL179754C (nl) 1986-11-03
NL179754B (nl) 1986-06-02
SE8500526D0 (sv) 1985-02-05
JPS6225861B2 (fr) 1987-06-05
SE7904771L (sv) 1979-12-01
ES247199U (es) 1980-03-16
SE8500526L (sv) 1985-02-05

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Legal Events

Date Code Title Description
ST Notification of lapse