EP1193375B1 - Soupape pour moteur à combustion interne - Google Patents

Soupape pour moteur à combustion interne Download PDF

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Publication number
EP1193375B1
EP1193375B1 EP00121412A EP00121412A EP1193375B1 EP 1193375 B1 EP1193375 B1 EP 1193375B1 EP 00121412 A EP00121412 A EP 00121412A EP 00121412 A EP00121412 A EP 00121412A EP 1193375 B1 EP1193375 B1 EP 1193375B1
Authority
EP
European Patent Office
Prior art keywords
valve
cone
plate
recess
valve plate
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 - Lifetime
Application number
EP00121412A
Other languages
German (de)
English (en)
Other versions
EP1193375A1 (fr
Inventor
Ulrich Bertram
Helmut Hans Ruhland
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.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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 Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to DE50000201T priority Critical patent/DE50000201D1/de
Priority to EP00121412A priority patent/EP1193375B1/fr
Priority to JP2001294311A priority patent/JP2002180811A/ja
Priority to US09/966,283 priority patent/US6453867B1/en
Publication of EP1193375A1 publication Critical patent/EP1193375A1/fr
Application granted granted Critical
Publication of EP1193375B1 publication Critical patent/EP1193375B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F01L3/12—Cooling of valves
    • F01L3/14—Cooling of valves by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49298—Poppet or I.C. engine valve or valve seat making
    • Y10T29/49307—Composite or hollow valve stem or head making

Definitions

  • the invention relates to a valve, in particular for internal combustion engines, according to the preamble of claim 1.
  • valves inside can coke very easily, resulting in a drastic deterioration in performance and Emissions behavior leads.
  • a valve with liquid cooling is known from US 4169488, in which the Valve stem is hollow on the inside with an inner second tube, with coolant through the valve stem up to the valve plug and back to be led.
  • a valve is only suitable for engines with very large valves, and because such a valve is complicated, it is accordingly also complex and expensive to manufacture.
  • US 5771852 discloses a valve with a hollow valve cone and valve stem, which are both made in one piece from a hollow tube.
  • the Transition from the valve stem to the valve plug are in the direction of the valve axis elongated or curved impressions arranged, on the one hand, the Increase the strength of the valve, on the other hand to swirl the Flow and thus lead to better heat dissipation.
  • the disadvantage here is that the heat input into the valve cone through Valve plate is not prevented and the valve cone is therefore very high Experienced heat load, which then dissipated only in the area of the indentations becomes.
  • the object of the invention is therefore to design a valve so that it is easy to manufacture and in the area of the valve stem and valve cone remains cool during operation so that the lubricating oil located there does not carbonized.
  • valve plate one has a smaller diameter than the recess in the valve cone, that between the recess in the valve cone and the valve plate edge Isolation gap is created.
  • valve cone By direct heat conduction from the valve plate to the valve cone through the Isolation gap is interrupted, the valve cone is only a fraction of the Heat applied with a firm, better heat-conducting connection to the valve plate would act on him. Because the one located directly in the combustion chamber The surface of the valve cone represents only a narrow circular ring heat introduced into the valve cone via this surface slightly above the Valve seat can be removed.
  • valve plate is exposed to the full heat load because of the constructively necessary contact with the valve cone only slight Amounts of heat are dissipated.
  • valve provides that in the recess of the valve cone is arranged a radially circumferential shoulder on which the Support the valve plate in the direction of the valve axis.
  • a paragraph makes sense to the valve plate resulting from the combustion pressure introduce the pressure forces acting on the valve cone into the valve seat.
  • Such a paragraph also serves as a stop for the assembly of the valve the exact axial positioning of the valve plate relative to the valve plug.
  • Valve cone and valve plate one or more joints on the circumference of the Valve plate edge.
  • the contact surfaces caused by the joining between valve cone and valve disc and thus the occurring The additions are only to keep heat transfer as low as possible arranged in sections on the circumference of the valve plate edge.
  • the Joining by caulking, by welding or by rolling on Valve cone. Other additions are possible as long as the Strength and low heat transfer requirements are met.
  • valve plate Center blocks are arranged. These serve to center the valve disc in the recess during assembly. By centering is a constant insulation gap on the entire circumference of the valve plate edge guaranteed.
  • Another embodiment provides that in the recess of the valve cone radial center cam be arranged. They do the same job there as with the arrangement on the edge of the valve plate. Another advantage is that in the case When the valve cone and valve disc are caulked, these cams simultaneously act as Mortising material can be used.
  • valve stem 2 The installation arrangement of the valve in the cylinder head 1 is shown in Figure 1.
  • the Valve has valve stem 2, valve cone 3 and valve disk 4.
  • the Valve stem 2 is slidably mounted in the valve stem guide 5. Goes down the valve stem 2 in the valve cone 3 over. Both are in the illustration made in one piece. It is not a hindrance to the concept presented if - here not shown - valve stem 2 and valve plug 3 in two or more parts are executed.
  • the valve cone has a recess 3a in which the valve disk 4 is arranged centrally. Due to the smaller diameter of the Valve plates 4 with respect to the recess 3a result in the insulating gap 6 between the recess 3a and the valve plate edge 4a. Centering in radial direction takes place over several, on the circumference of the valve plate edge 4a arranged center cam 7. By means of the annular shoulder 3b is the Valve plate 4 with respect to the valve cone 3 in the axial direction of the valve positioned. At the valve plate edge 4a there are several welding spots 8 on the circumference attached, which represent the joint between valve cone 3 and valve plate 4.
  • valve plate 4 The heat transfer from the valve plate 4 to the valve cone 3 is due to the Contact areas between the two parts determined. Result in contact areas essentially at the welding points 8, at paragraph 3b of the valve cone 3 and on the center cam 7. Otherwise there are valve cone 3 and valve plate 4 essentially through the insulating gap 6 and between the two parts forming cavity 9 thermally insulated.
  • valve stem 2 and valve cone 3 experience additional cooling through the Fresh air supply in the intake duct 11.
  • valve plate 4 In Figure 2, the view of the valve on the valve plate 4 is shown. Through the Center cam 7, the valve plate is centered in the recess 3a of the Valve plug 3 arranged. The insulating gap 6 runs around the entire circumference Valve plate edge 4a. The three welding points 8 make the fixed connection between valve cone 3 and valve plate 4.
  • FIG 3 it is shown how the valve plate 4 with the valve cone 3 through a Caulking 12 is added. This is done at regular intervals on the scope the recess 3a pressed material from the valve cone 3 onto the valve plate 4. Caulking at high temperature differences between is advantageous the two components. Because of the non-material connection of the two Components build voltage peaks with different thermal expansion by moving the two components against each other.
  • valve plate 4 and valve cone 3 by rolling Material from the ring flange 3c are joined.
  • the resulting ring bead 13 has similar advantageous properties with regard to thermal stresses as the caulking 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Lift Valve (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Claims (9)

  1. Soupape, de préférence pour des moteurs à combustion interne, avec une queue de soupape (2), un cône de soupape (3) et un plateau de soupape (4), dans laquelle le cône de soupape (3) présente un évidement (3a) destiné à recevoir le plateau de soupape (4), et dans laquelle le cône de soupape (3) et le plateau de soupape (4) forment ensemble un espace creux (9), caractérisée en ce que le plateau de soupape (4) présente un diamètre plus petit que l'évidement (3a) dans le cône de soupape (3), de telle manière qu'il se crée une fente isolante (6) entre l'évidement (3a) dans le cône de soupape (3) et le bord (4a) du plateau de soupape.
  2. Soupape suivant la revendication 1, caractérisée en ce qu'un retrait radial périphérique (3b) est disposé dans l'évidement (3a) du cône de soupape (3), sur lequel le plateau de soupape (4) prend appui dans la direction de l'axe de la soupape.
  3. Soupape suivant la revendication 1, caractérisée en ce que plusieurs retraits répartis en périphérie sont disposés dans l'évidement (3a) du cône de soupape (3), sur lesquels le plateau de soupape (4) prend appui dans la direction de l'axe de la soupape.
  4. Soupape suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que le cône de soupape (3) et le plateau de soupape (4) sont assemblés par une ou plusieurs jonctions à la périphérie du bord (4a) du plateau de soupape.
  5. Soupape suivant la revendication 4, caractérisée en ce qu'une jonction est réalisée par matage.
  6. Soupape suivant la revendication 4, caractérisée en ce qu'une jonction est réalisée par soudage.
  7. Soupape suivant la revendication 4, caractérisée en ce qu'une jonction est réalisée par enroulement sur le cône de soupape.
  8. Soupape suivant l'une quelconque des revendications 1 à 7, caractérisée en ce que des bossages de centrage radiaux (7) sont disposés sur le bord (4a) du plateau de soupape.
  9. Soupape suivant l'une quelconque des revendications 1 à 7, caractérisée en ce que des bossages de centrage radiaux sont disposés dans l'évidement (3a) du cône de soupape (3).
EP00121412A 2000-09-29 2000-09-29 Soupape pour moteur à combustion interne Expired - Lifetime EP1193375B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE50000201T DE50000201D1 (de) 2000-09-29 2000-09-29 Ventil für Brennkraftmaschinen
EP00121412A EP1193375B1 (fr) 2000-09-29 2000-09-29 Soupape pour moteur à combustion interne
JP2001294311A JP2002180811A (ja) 2000-09-29 2001-09-26 内燃機関用バルブ
US09/966,283 US6453867B1 (en) 2000-09-29 2001-09-28 Valve for combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00121412A EP1193375B1 (fr) 2000-09-29 2000-09-29 Soupape pour moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP1193375A1 EP1193375A1 (fr) 2002-04-03
EP1193375B1 true EP1193375B1 (fr) 2002-06-05

Family

ID=8169983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121412A Expired - Lifetime EP1193375B1 (fr) 2000-09-29 2000-09-29 Soupape pour moteur à combustion interne

Country Status (4)

Country Link
US (1) US6453867B1 (fr)
EP (1) EP1193375B1 (fr)
JP (1) JP2002180811A (fr)
DE (1) DE50000201D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2779355C2 (ru) * 2017-08-30 2022-09-06 Ман Трак Энд Бас Аг Клапан для двигателя внутреннего сгорания

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002285895A (ja) * 2001-03-26 2002-10-03 Nissan Motor Co Ltd 内燃機関
DE10204122C1 (de) * 2002-02-01 2003-05-08 Daimler Chrysler Ag Gebautes Ventil für Hubkolbenmaschinen und Verfahren zu dessen Herstellung
DE10340320B4 (de) * 2003-08-29 2005-11-17 Daimlerchrysler Ag Mehrteiliges zusammengesetztes Ventil für eine Brennkraftmaschine
US20050154279A1 (en) * 2003-12-31 2005-07-14 Wenguang Li System and method for registering an image with a representation of a probe
JP2007285186A (ja) * 2006-04-14 2007-11-01 Suncall Corp バルブアッセンブリ
JP4771868B2 (ja) * 2006-06-06 2011-09-14 サンコール株式会社 内燃機関用バルブ構造
DE102015116010A1 (de) * 2015-09-22 2017-03-23 Federal-Mogul Valvetrain Gmbh Gekühltes Ventil für Verbrennungsmotoren mit Entlastungsnut
US10760455B2 (en) 2016-12-20 2020-09-01 Caterpillar Inc. Poppet valve for an internal combustion engine
DE102017119887A1 (de) * 2017-08-30 2019-02-28 Man Truck & Bus Ag Ventil für einen Verbrennungsmotor
WO2022207148A1 (fr) * 2021-03-31 2022-10-06 Eaton Intelligent Power Limited Soupape champignon

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960331A1 (de) * 1969-12-02 1971-06-03 Porsche Kg Kegelventil,insbesondere fuer Brennkraftmaschinen
US4169488A (en) 1977-11-23 1979-10-02 Caterpillar Tractor Co. Cooled engine valve
US4346870A (en) * 1980-11-26 1982-08-31 Eaton Corporation Thermal barrier for poppet valve
DE3625590A1 (de) * 1986-07-29 1988-02-04 Odilo Schwaiger Ventile fuer brennkraftmaschinen
US5771852A (en) 1997-03-04 1998-06-30 Trw Inc. Poppet valve with embossed neck structure
DE59707222D1 (de) * 1997-08-19 2002-06-13 Trw Deutschland Gmbh Hohlventil für Verbrennungsmotoren
DE19804053A1 (de) * 1998-02-03 1999-08-05 Mwp Mahle J Wizemann Pleuco Gm Leichtbauventil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2779355C2 (ru) * 2017-08-30 2022-09-06 Ман Трак Энд Бас Аг Клапан для двигателя внутреннего сгорания

Also Published As

Publication number Publication date
DE50000201D1 (de) 2002-07-11
EP1193375A1 (fr) 2002-04-03
JP2002180811A (ja) 2002-06-26
US6453867B1 (en) 2002-09-24
US20020066432A1 (en) 2002-06-06

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