EP1599658B1 - Soupape d'echange des gaz d'un moteur a combustion - Google Patents

Soupape d'echange des gaz d'un moteur a combustion Download PDF

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Publication number
EP1599658B1
EP1599658B1 EP05706738A EP05706738A EP1599658B1 EP 1599658 B1 EP1599658 B1 EP 1599658B1 EP 05706738 A EP05706738 A EP 05706738A EP 05706738 A EP05706738 A EP 05706738A EP 1599658 B1 EP1599658 B1 EP 1599658B1
Authority
EP
European Patent Office
Prior art keywords
valve
keeper
cone
stem
hand
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.)
Expired - Fee Related
Application number
EP05706738A
Other languages
German (de)
English (en)
Other versions
EP1599658A1 (fr
Inventor
Marcus Abele
Martin Lechner
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.)
Mahle Ventiltrieb GmbH
Original Assignee
Mahle Ventiltrieb GmbH
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 Mahle Ventiltrieb GmbH filed Critical Mahle Ventiltrieb GmbH
Publication of EP1599658A1 publication Critical patent/EP1599658A1/fr
Application granted granted Critical
Publication of EP1599658B1 publication Critical patent/EP1599658B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the invention relates to a gas exchange valve of an internal combustion engine according to the preamble of patent claim 1.
  • Such gas exchange valves are known, for example, from WO99 / 16295 and US 2,398,514.
  • the invention is concerned with the problem of minimizing the stresses on the valve disk, in particular in its bottom region, due to temperature and combustion chamber pressure by means of an optimized disk geometry, in particular in its bottom area, while at the same time having as small a wall thickness as possible.
  • the overall deformation of the valve should be taken into account, with regard to a displacement of the valve stem on the one hand and to the deformation of the valve bottom between the support in the bottom center and the outer bottom region under combustion chamber pressure on the other.
  • the invention is based on the general idea of reinforcing the valve bottom in the case of an overall convex outward shape by means of annular bead regions surrounding the valve axis, each having a convexly outwardly extending bead cross section.
  • annular bead which may also be referred to as a torus section
  • a plurality of annular beads arranged concentrically with one another within the valve base can also be provided.
  • the central portion of the valve bottom when adjacent to a hollow valve stem, may be outwardly convex or concave.
  • the individual elements of the gas exchange valve according to the invention are usually welded together in an embodiment of the valve made of metal.
  • valve cone which is generally used in practice, "cone” with respect to its shape is not strictly mathematical, but rather to be understood in the sense of an arbitrary funnel shape.
  • the valve bottom closes via a connection collar to the valve cone at.
  • the connection is made such that the radially outer edge regions of the valve bottom in the form of the connection collar on the one hand and the valve cone on the other hand in a conical surface formed by the lateral surface of a fictitious, erected in the valve axis cone with a reference to the valve cone tapered connection surface and in this conical surface together in the direction of the cone base surface leak.
  • valve disc made of metal are welded together without the welds are shown as such.
  • the valve disk according to the invention according to FIG. 1 comprises a valve bottom 1, a hollow valve cone 2 and a hollow valve stem 3.
  • the valve base 1 is welded to the hollow cylindrical seated valve stem 3 on the one hand and the outer edge of the valve cone 2 on the other.
  • the tapered end of the valve cone 2 is welded to the valve stem 3.
  • the interconnected, aforementioned components together form a rigid rotating surface supporting structure.
  • the valve bottom 1 has a largely flat central area 4 in the middle of the floor.
  • the annular region lying between this central region 4 and the outer edge of the valve base 1 is designed as an annular bead 5, which can also be referred to as a torus section, with an outwardly convex curvature.
  • connection collar 7 is additionally formed between the annular bead 5 and a radially outer joining region 6 between the valve bottom 1 and the valve plug 2.
  • connection collar 7 adjoins the valve cone 2 in a connection surface which is formed on a cone erected in the valve axis by a lateral surface of a fictitious cone with a constriction which is rectilinear with respect to the valve cone 2.
  • the connection collar 7 and the adjacent edge region of the valve cone 2 run together in this conical surface in the direction of the cone base surface.
  • valve stem 3 with a widened area 8 inside the valve is used in a departure from the embodiment according to FIG. Through this widened region 8 improved support of the valve bottom 1 is achieved in its central region.
  • valve embodiment according to FIG. 4 differs from that according to FIG. 3 only in that the valve bottom 1 is convexly curved in a central region 9 outwardly within the widened region 8 of the valve stem 3 to the outside.
  • FIG. 5 is based on a basic valve shape according to FIG. 2.
  • a support cone 10 is provided in the interior of the valve cone 2. In its tapered region of this support cone 10 is welded to the valve stem 3. At the valve bottom 1 of the support cone 10 is also welded.
  • the valve bottom with two concentric annular beads 5 ', 11 has a particularly good stability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)

Claims (9)

  1. Soupape de renouvellement des gaz d'un moteur à combustion interne comportant respectivement une tige de soupape en particulier creuse (3) et une tête de soupape, dans laquelle
    - la tête de soupape comprend un plateau de soupape (1) et un cône de soupape creux (2) relié au bord extérieur de celle-ci, le cône de soupape (2) rétrécissant au fur et à mesure de l'éloignement par rapport au plateau,
    - la tige de soupape (3) traverse le cône de soupape creux (2) et est respectivement reliée fermement d'une part au plateau de soupape (1) ainsi que d'autre part à l'extrémité étroite du cône de soupape(2),
    - l'extrémité de la tige de soupape (3) reliée au plateau de soupape (1) fait saillie au-delà du plan de liaison entre le cône de soupape (2) et le plateau de soupape (1),
    caractérisée en ce
    que le plateau de soupape (1) comporte dans la zone annulaire située entre son rattachement à la tige de soupape (3) d'une part et le cône de soupape (2) d'autre part, au moins une moulure annulaire (5 ; 5', 11) adjacente radialement, présentant une surface de section transversale de moulure annulaire s'étendant de manière convexe vers l'extérieur.
  2. Soupape de renouvellement des gaz selon la revendication 1 ou 2,
    caractérisée en ce
    que la tige de soupape (3) possède un diamètre plus grand à son extrémité reliée au plateau de soupape (1) qu'à sa zone de liaison avec le cône de soupape (2).
  3. Soupape de renouvellement des gaz selon l'une des revendications précédentes, comportant une tige de soupape cylindrique creuse, reposant de manière ouverte sur le plateau de soupape (9),
    caractérisée en ce
    que le plateau de soupape (1) est courbé de manière convexe vers l'extérieur à l'intérieur de sa zone adjacente à l'espace creux de la tige de soupape (3).
  4. Soupape de renouvellement des gaz selon la revendication 1 ou 2,
    caractérisée en ce
    que le plateau de soupape (1) est courbé de manière concave de l'extérieur vers l'intérieur à l'intérieur de sa zone adjacente à l'espace creux de la tige de soupape (3).
  5. Soupape de renouvellement des gaz selon l'une des revendications précédentes,
    caractérisée en ce
    qu'à l'intérieur du cône de soupape (2) est prévu un cône d'appui (10) intérieur avec une liaison d'une part au plateau de soupape (1), dans une zone entre deux moulures (5', 11) adjacentes l'une à l'autre radialement et d'autre part à la tige de soupape (3) dans sa zone étroite.
  6. Soupape de renouvellement des gaz selon l'une des revendications précédentes,
    caractérisée en ce
    que les moulures annulaires (5 ; 5', 11) présentent un profil de section transversale réalisé suivant une forme parabolique, hyperbolique ou logarithmique.
  7. Soupape de renouvellement des gaz d'un moteur à combustion interne comportant respectivement une tige de soupape (3) et une tête de soupape, dans laquelle
    - la tête de soupape comprend un plateau de soupape (1) et un cône de soupape creux (2) relié au bord extérieur de celle-ci, le cône de soupape (2) rétrécissant au fur et à mesure de l'éloignement par rapport au plateau de soupape (1),
    - la tige de soupape (3) traverse le cône de soupape creux (2) et est respectivement reliée fermement d'une part au plateau de soupape (1) ainsi que d'autre part à l'extrémité étroite du cône de soupape (2), selon en particulier l'une des revendications précédentes
    caractérisée en ce
    que les zones marginales radialement extérieures du plateau de soupape (1) se situent sous la forme d'une collerette de raccordement (7) d'une part ainsi que du cône de soupape (2) d'autre part, dans une surface de liaison formée par la génératrice d'un cône fictif dressé dans l'axe de la soupape comportant un rétrécissement orienté dans la même direction que le cône de soupape (2), et s'étendent ensemble dans cette surface conique en direction de la surface de la base du cône.
  8. Soupape de renouvellement des gaz selon la revendication 7,
    caractérisée en ce
    que l'angle de cône du cône imaginé par la surface de génératrice mesure par rapport à sa surface de base 180°- α, où α = 15° à 45°.
  9. Soupape de renouvellement des gaz selon la revendication 8,
    caractérisée en ce
    que l'angle α est compris entre 15° et 35°.
EP05706738A 2004-03-03 2005-02-04 Soupape d'echange des gaz d'un moteur a combustion Expired - Fee Related EP1599658B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004010309 2004-03-03
DE102004010309A DE102004010309A1 (de) 2004-03-03 2004-03-03 Gaswechselventil eines Verbrennungsmotors
PCT/DE2005/000179 WO2005085605A1 (fr) 2004-03-03 2005-02-04 Soupape d'echange des gaz d'un moteur a combustion

Publications (2)

Publication Number Publication Date
EP1599658A1 EP1599658A1 (fr) 2005-11-30
EP1599658B1 true EP1599658B1 (fr) 2006-05-17

Family

ID=34877288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05706738A Expired - Fee Related EP1599658B1 (fr) 2004-03-03 2005-02-04 Soupape d'echange des gaz d'un moteur a combustion

Country Status (4)

Country Link
EP (1) EP1599658B1 (fr)
JP (1) JP4708413B2 (fr)
DE (2) DE102004010309A1 (fr)
WO (1) WO2005085605A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006061128B4 (de) * 2006-12-22 2015-06-11 Mahle International Gmbh Gaswechselventil eines Verbrennungsmotors

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006061127B4 (de) * 2006-12-22 2016-07-14 Mahle International Gmbh Metallisches Leichtbauventil eines Verbrennungsmotors
WO2014155667A1 (fr) * 2013-03-29 2014-10-02 日鍛バルブ株式会社 Soupape champignon creuse
DE102013210900A1 (de) * 2013-06-11 2014-12-11 Mahle International Gmbh Gaswechselventil einer Brennkraftmaschine
DE102013210899A1 (de) 2013-06-11 2014-12-11 Mahle International Gmbh Verfahren zur Herstellung eines gebauten Hohlventils
DE102016207799A1 (de) * 2016-05-04 2017-11-09 Mahle International Gmbh Gaswechselventil für eine Brennkraftmaschine
DE102017119887A1 (de) * 2017-08-30 2019-02-28 Man Truck & Bus Ag Ventil für einen Verbrennungsmotor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1727621A (en) * 1928-02-18 1929-09-10 Gen Motors Corp Exhaust valve
GB471605A (en) * 1935-08-17 1937-09-08 Teves Kg Alfred Improvements in or relating to hollow poppet valves
US2371548A (en) * 1943-12-06 1945-03-13 Thomas F Saffady Valve
US4164957A (en) * 1977-11-23 1979-08-21 Caterpillar Tractor Co. Oil-cooled engine valve
DE3625590A1 (de) * 1986-07-29 1988-02-04 Odilo Schwaiger Ventile fuer brennkraftmaschinen
SE467267B (sv) * 1988-11-15 1992-06-22 Volvo Ab Ventil foer en foerbraenningsmotor
DE19705621A1 (de) * 1997-02-14 1998-08-20 Heinz Leiber Gaswechselventil und Verfahren zum Messen des Druckes in einem Brennraum einer Brennkraftmaschine
EP0898055B1 (fr) * 1997-08-19 2002-05-08 TRW Deutschland GmbH Soupape creuse pour moteur à combustion interne
DE19804053A1 (de) * 1998-02-03 1999-08-05 Mwp Mahle J Wizemann Pleuco Gm Leichtbauventil
WO2003056142A1 (fr) * 2001-12-27 2003-07-10 Mahle Ventiltrieb Gmbh Soupape d'echange de gaz de moteur a combustion interne pourvue d'une tete creuse
DE10204122C1 (de) * 2002-02-01 2003-05-08 Daimler Chrysler Ag Gebautes Ventil für Hubkolbenmaschinen und Verfahren zu dessen Herstellung
DE10217719A1 (de) * 2002-04-20 2003-11-06 Mahle Ventiltrieb Gmbh Beweglicher, heißen Gasen ausgesetzter Verschlusskörper eines Ventiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006061128B4 (de) * 2006-12-22 2015-06-11 Mahle International Gmbh Gaswechselventil eines Verbrennungsmotors

Also Published As

Publication number Publication date
EP1599658A1 (fr) 2005-11-30
DE102004010309A1 (de) 2005-09-22
DE502005000011D1 (de) 2006-06-22
WO2005085605A1 (fr) 2005-09-15
JP2007526419A (ja) 2007-09-13
JP4708413B2 (ja) 2011-06-22

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