EP1020630A1 - Zylinderkopf für eine Brennkraftmaschine - Google Patents

Zylinderkopf für eine Brennkraftmaschine Download PDF

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Publication number
EP1020630A1
EP1020630A1 EP00400027A EP00400027A EP1020630A1 EP 1020630 A1 EP1020630 A1 EP 1020630A1 EP 00400027 A EP00400027 A EP 00400027A EP 00400027 A EP00400027 A EP 00400027A EP 1020630 A1 EP1020630 A1 EP 1020630A1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
intake
plane
exhaust
longitudinal
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.)
Withdrawn
Application number
EP00400027A
Other languages
English (en)
French (fr)
Inventor
Michel Bartalini
Olivier Marechal
Hubert Volkaert
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
Publication of EP1020630A1 publication Critical patent/EP1020630A1/de
Withdrawn legal-status Critical Current

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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
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per 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

Definitions

  • the present invention relates to a combustion engine cylinder head internal and more particularly a petrol or diesel engine of the two intake valves and at least one, preferably two, valves exhaust by combustion chamber.
  • this movement will be of swirl type, i.e. having an axis of rotation parallel to the axis of the cylinders.
  • This type of movement is obtained, in a known manner, by using specific configurations of the intake ducts (pipes helical) or by using devices inside said conduits, such obstacles.
  • Patent DE 19534904 describes, for this purpose, a cylinder head cross flow type with two intake ducts per combustion and two exhaust pipes, the intake ports and exhaust extending respectively on either side of the plane longitudinal median of the breech.
  • the two intake ducts are located transversely from the inlet side face, towards the combustion chamber.
  • the first conduit extends between the two planes transverse delimiting the combustion chamber, while the second duct leads to the intake side, crossing one of these planes and bypassing the housing with a cylinder head fixing screw.
  • This type of solution guarantees a high level of swirl but remains limited to the level of permeability due to the strong curvature of the second intake duct.
  • the object of the present invention is therefore to remedy these disadvantages of offering an internal combustion engine cylinder head comprising at least one combustion chamber cooperating with two intake ducts extending transversely from a side face intake to said combustion chamber and the drawing of which ensures, without artifices, both a high level of swirl and excellent permeability.
  • a first conduit intake extends from a first inlet port located between the transverse planes delimiting the combustion chamber, to open by a first inlet orifice, formed on one side with respect to the plane longitudinal median of said cylinder head and a second intake duct extends from a second inlet orifice situated outside said planes transverse to a second intake port, located on the side opposite the first intake port with respect to said longitudinal median plane or substantially to the right of said median plane.
  • the second orifice intake is arranged substantially symmetrical to the first inlet port, relative to the longitudinal median plane.
  • the orifices on the same side with respect to the median plane transverse to the combustion chamber.
  • the first orifice of admission is arranged substantially at the level of the transverse median plane.
  • the second orifice intake is located substantially to the right of the longitudinal plane.
  • the cylinder head comprises one exhaust duct per combustion chamber.
  • the cylinder head comprises two exhaust ducts extending transversely to the longitudinal plane, between transverse planes, from a lateral face exhaust to the combustion chamber and opening through exhaust ports, arranged substantially symmetrically opposite screws of the intake ports, with respect to the transverse median plane.
  • the cylinder head comprises two exhaust ducts extending transversely to the longitudinal plane between the transverse planes, from a lateral face exhaust to the combustion chamber, and the first of which leads exhaust outlet, through a first exhaust port, located on the transverse median plane, and diametrically opposite, with respect to said longitudinal plane, at the orifice of the first intake duct and the second exhaust pipe opens out, through a second exhaust port, located substantially on said longitudinal plane, and diametrically opposite, with respect to said transverse median plane, at the orifice of the duct of admission.
  • the conduits are of helical or tangential type.
  • the cylinder head is of the type cross flow.
  • a cylinder head 1 of the type cross flow, of an internal combustion engine, of petrol or diesel type, has at least one combustion chamber 2.
  • This combustion chamber 2 is located along the median plane longitudinal X-X of the cylinder head. It has two intake ducts 4, 5 and two exhaust ducts 6, 7, intended to open into said combustion chamber.
  • the intake ducts can be of the type tangential or helical.
  • Each of the conduits 4, 5, 6, 7 is terminated by an orifice specific, respectively 41, 51, 61, 71 provided with an attached seat, formed by a ring, not shown, positioned in a suitable housing machined in the cylinder head.
  • a valve can be applied to each of these seats, not shown, integral with a rod slidably mounted in a guide valve, carried by the cylinder head.
  • the median plane transverse of this chamber is marked 10.
  • the two intake ducts 4, 5 extend transversely from an inlet side face 11 towards the combustion chamber 2.
  • the first intake duct 4 extends, from a first orifice entrance located between the transverse planes 8 and 9, towards one side of the plane longitudinal X-X.
  • the orifice 41 of this conduit is located between this side of the plane longitudinal X-X and one side of the transverse median plane 10.
  • the second intake duct 5 extends from a second orifice entrance, not shown and located outside planes 8 and 9, towards the other side of the longitudinal plane X-X, in relation to conduit 4.
  • the orifice intake 51 of this duct is between this other side of the plane longitudinal X-X and the same side as the first inlet port 41 of the transverse median plane 10, inside the transverse planes 8 and 9.
  • the conduit 5 bypasses the housing 12 with a fixing screw of the cylinder head located in plane 8, with a relatively radius of curvature Student.
  • the orifices 41 and 51 of the intake ducts 4 and 5 are located therefore, substantially symmetrical with respect to the median plane longitudinal X-X and on the same side with respect to the transverse median plane 10 of the combustion chamber 2.
  • the exhaust ducts 6 and 7 extend transversely by relation to the longitudinal plane X-X, between the transverse planes 8 and 9, from an exhaust side face 13 towards the combustion chamber 2.
  • the exhaust ports 61 and 71 of said conduits are located the other side of the plane 10, relative to the orifices 41 and 51. These orifices exhaust are therefore arranged in a substantially symmetrical manner at the intake ports 41 and 51, with respect to the transverse median plane 10.
  • the two intake ducts 4, 5 extend transversely from the face inlet side 11 to combustion chamber 2.
  • the first intake duct 4 extends from a first non-inlet inlet represented and located between the transverse planes 8 and 9, towards the plane longitudinal X-X, substantially following the direction of the median plane transverse 10.
  • the inlet 41 of this duct is located on one side from the X-X plane, substantially in line with the transverse median plane 10.
  • the second intake duct 5 extends from a second orifice entrance, not shown and located outside planes 8 and 9, towards the plan longitudinal X-X.
  • the intake port 51 of this conduit is located substantially in line with the longitudinal plane X-X, on one side of the median plane transverse 10.
  • the inlet ports 41 and 51 are therefore located respectively on the transverse median plane 10 and on the longitudinal plane X-X, with a angular deviation, from said orifice 41 to said orifice 51, substantially 90 degrees according to the trigonometric direction.
  • the exhaust ducts 6 and 7 extend transversely by relation to the longitudinal plane X-X, between the transverse planes 8 and 9, from the exhaust side face 13 towards the combustion chamber 2.
  • the exhaust port 61 of the conduit 6 is located to the right of the median plane transverse 10, diametrically opposite, with respect to the longitudinal plane X-X, to the first intake port 41.
  • the exhaust port 71 of the exhaust duct 7 is located substantially in line with the plane longitudinal X-X, diametrically opposite, with respect to the median plane transverse 10, to the orifice 51 of the intake duct 5.
  • the arrangement of the intake ducts, as well as that of the orifices of said conduits in the exemplary embodiments of cylinder heads conforming to the invention not only ensures a high level of swirl, but also, by their low curvature, significant permeability. This permeability thus ensures optimal filling of the combustion chamber, directly influencing engine performance.
  • the invention is not limited to the embodiment previously described but includes alternative embodiments. So the cylinder head can be cross flow type or not. In an example of embodiment, the cylinder head according to the invention can be provided with a single exhaust duct. Finally, the internal combustion engine, comprising a cylinder head according to the invention, can be two or four time, direct injection or not.
  • the invention includes any cylinder head comprising two intake ducts, per combustion chamber, extending transversely from a lateral face towards the corresponding combustion, of which the first conduit, extending between the transverse planes delimiting the combustion chamber, leads by a intake opening on one side with respect to the median plane longitudinal of the cylinder head, and whose second conduit, extending from a inlet orifice located outside one of the transverse planes, opens through an intake port located inside the transverse planes and the side opposite the first intake port relative to the median plane longitudinal of said cylinder head.

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)
EP00400027A 1999-01-15 2000-01-07 Zylinderkopf für eine Brennkraftmaschine Withdrawn EP1020630A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9900372 1999-01-15
FR9900372A FR2788563B1 (fr) 1999-01-15 1999-01-15 Culasse de moteur a combustion interne

Publications (1)

Publication Number Publication Date
EP1020630A1 true EP1020630A1 (de) 2000-07-19

Family

ID=9540880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00400027A Withdrawn EP1020630A1 (de) 1999-01-15 2000-01-07 Zylinderkopf für eine Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP1020630A1 (de)
FR (1) FR2788563B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE778976A (fr) * 1972-02-04 1972-05-30 Berliet Automobiles Culasse pour moteur a combustion interne, notamment pour un moteur diesel
JPS5791320A (en) * 1980-11-28 1982-06-07 Suzuki Motor Co Ltd Intake device for internal combustion engine
EP0603924A1 (de) * 1992-12-23 1994-06-29 Scania Cv Aktiebolag Zylinderkopf für eine Brennkraftmaschine
EP0634571A1 (de) * 1993-05-18 1995-01-18 Mazda Motor Corporation Einlassvorrichtung einer Dieselkraftmaschine
EP0666409A1 (de) * 1994-02-04 1995-08-09 Mazda Motor Corporation Dieselmotor mit Direkteinspritzung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19534904B4 (de) 1994-09-29 2008-07-17 Volkswagen Ag Zylinderkopf einer Brennkraftmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE778976A (fr) * 1972-02-04 1972-05-30 Berliet Automobiles Culasse pour moteur a combustion interne, notamment pour un moteur diesel
JPS5791320A (en) * 1980-11-28 1982-06-07 Suzuki Motor Co Ltd Intake device for internal combustion engine
EP0603924A1 (de) * 1992-12-23 1994-06-29 Scania Cv Aktiebolag Zylinderkopf für eine Brennkraftmaschine
EP0634571A1 (de) * 1993-05-18 1995-01-18 Mazda Motor Corporation Einlassvorrichtung einer Dieselkraftmaschine
EP0666409A1 (de) * 1994-02-04 1995-08-09 Mazda Motor Corporation Dieselmotor mit Direkteinspritzung

Also Published As

Publication number Publication date
FR2788563B1 (fr) 2001-02-09
FR2788563A1 (fr) 2000-07-21

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