DE3247487A1 - Poppet valve for internal combustion engines - Google Patents

Poppet valve for internal combustion engines

Info

Publication number
DE3247487A1
DE3247487A1 DE19823247487 DE3247487A DE3247487A1 DE 3247487 A1 DE3247487 A1 DE 3247487A1 DE 19823247487 DE19823247487 DE 19823247487 DE 3247487 A DE3247487 A DE 3247487A DE 3247487 A1 DE3247487 A1 DE 3247487A1
Authority
DE
Germany
Prior art keywords
valve
poppet valve
internal combustion
combustion engines
heat shield
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Withdrawn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
DE19823247487
Other languages
German (de)
Inventor
Ulrich 4040 Neuss Bücking
Michael 5650 Solingen Klocke
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to DE19823247487 priority Critical patent/DE3247487A1/en
Publication of DE3247487A1 publication Critical patent/DE3247487A1/en
Withdrawn legal-status Critical Current

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
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials

Landscapes

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

Abstract

Poppet valve (1) for internal combustion engines, in which a heat shield (3) is arranged on the valve base (2). In order to improve the insulation and to simplify the manufacturing process, this heat shield (3), viewed in longitudinal section, is of U-shaped design and welded to the poppet valve (1) creating an insulation space (6) with simultaneous application of a valve seat hard facing (5). <IMAGE>

Description

Klöckner-Humbolcit-Deufz AG ^ ET^O lL# ." - ; .-•„"."*„: 3247487Klöckner-Humbolcit-Deufz AG ^ ET ^ O lL #. "-; .- •""." * " : 3247487

5000 Köln 80, den 17. Dezember 1982 Unser Zeichen: D 82/46 AE-ZPB Ga/Bi5000 Cologne 80, December 17, 1982 Our reference: D 82/46 AE-ZPB Ga / Bi

Tellerventil für BrennkraftmaschinenDisk valve for internal combustion engines

Die Erfindung bezieht sich auf ein Tellerventil für Brennkraftmaschinen/ an dessen Ventilboden ein aus vorzugsweise korrosionsbeständigem und thermisch hoch belastbarem Werkstoff bestehender Wärmeschutzschild angeordnet ist.The invention relates to a poppet valve for internal combustion engines / on the valve base of a material that is preferably corrosion-resistant and thermally highly resilient existing heat shield is arranged.

Bei einem bekannten Tellerventil der im Oberbegriff des Anspruchs 1 aufgeführten Gattung (DE-PS 23 33 890) ist der Ventilboden mit flachen Nuten versehen und von einem ebenen oder konkav gekrümmten Wärmeschutzschild abgedeckt, zur Befestigung des Wärmeschutzschildes an dem Ventilboden dient eine zentrale Innensechskantschraube, die in einer Gewindebohrung des Ventilkörpers angreift. Ein wesentlicher Nachteil dieser Anordnung eines Wärmeschutzschildes besteht darin, daß der Ventilboden zusätzlich bearbeitet werden muß, d. h. es müssen durch spanabhebende Bearbeitung Nuten und eine Gewindebohrung im Boden angebracht, werden. Durch die spanabhebende Bearbeitung des Ventilbodens tritt außerdem infolge Kerbwirkung die Gefahr der Rißbildung im Ventilteller ein. Im Bereich der die Nuten voneinander trennenden Stege und am Anschraubpunkt des Wärmeschutzschildes ist trotz dieser bekannten Maßnahme ein unerwünscht hoher Wärmeübergang vorhanden, da der Wärmeschutzschild unmittelbar am Ventilboden anliegt.In a known poppet valve of the type listed in the preamble of claim 1 (DE-PS 23 33 890) is the Valve bottom provided with shallow grooves and covered by a flat or concave curved heat shield, for A central hexagon socket screw is used to attach the heat shield to the valve base Engages threaded hole of the valve body. A major disadvantage of this arrangement of a heat shield consists in the fact that the valve base has to be processed additionally, i. H. it must be done by machining Grooves and a threaded hole are made in the floor. By machining the valve base there is also the risk of cracking in the valve disk due to the notch effect. In the area of the grooves webs separating each other and at the screwing point of the heat shield is despite this known measure there is an undesirably high heat transfer, as the heat shield is in direct contact with the valve base.

II-DpuIz AG ZAII-DpuIz AG ZA

υ · «Aυ · «A

Klöc^ner-Humboldt-DpulzAG A f%irflJ .' " : " .Γ " >\ ' J 3 247487Klöc ^ ner-Humboldt-DpulzAG A f% irflJ. '":". Γ "> \ 'J 3 247487

- 3 - 17.12.1982- 3 - December 17, 1982

D 82/46D 82/46

Die der Erfindung zugrundeliegende Aufgäbe besteht somit darin, die vorstehend beschriebenen Mangel zu beheben und somit eine Wärmedämmung für Tellerventile zu schaffen, die sich wegen des geringen Fertigungsaufwands insbesondere für die Serienfertigung eignet und die in zuverlässiger Weise eine thermische Überlastung des Tellerventils verhindert.The object on which the invention is based thus exists is to remedy the deficiency described above and thus to create thermal insulation for poppet valves that is particularly suitable for series production because of the low manufacturing costs and is reliable prevents thermal overloading of the poppet valve.

Diese Aufgabe wird an einem Tellerventil der in Rede stehenden Gattung durch die im Kennzeichen des Anspruchs aufgeführten Merkmale gelöst.This task is carried out on a poppet valve of the type in question by the characterizing part of the claim listed features solved.

Durch die Verwendung eines im Längsschnitt gesehen U-förmig ausgebildeten Wärmeschutzschildes wird zwischen Wärmeschutzschild und Ventilboden ein Isolierraum geschaffen mit optimaler isolierung an der Kreisfläche des Ventilbodens. Ein in üblicher Weise mit ebenem oder konkav gekrümmten Ventilboden versehenes Tellerventil kann ohne zusätzliche Bearbeitung des Ventilbodens auf diese Weise gleichzeitig mit der Auftragung der Ventilsitzpanzerung in einem Schweißvorgang mit dem Wärmeschutzschild versehen werden, d. h. die umlaufendb Schweißnaht zur Befestigung des Wärmeschutzschildes dient gleichzeitig als Ventilsitzpanzerung. By using a U-shaped when viewed in longitudinal section formed heat shield, an insulating space is created between the heat shield and valve base with optimal insulation on the circular surface of the valve base. One in the usual way with flat or concave A poppet valve provided with a curved valve base can be used in this way without additional processing of the valve base Equipped with the heat shield at the same time as the valve seat armor is applied in one welding process be, d. H. the circumferential weld seam for fastening the heat shield also serves as valve seat armouring.

Bei Auftreten sehr hoher Verbrennungsdrücke kann der Isolierraum noch zusätzlich mit wärmedämmenden Materialien, z. B. Asbest oder Wolframoxydpulver gefüllt werden, um die Druckbelastung des Wärmeschutzschildes abzufangen.If very high combustion pressures occur, the Isolation room with additional heat-insulating materials, e.g. B. asbestos or tungsten oxide powder are filled to the To absorb the pressure load on the heat shield.

Zur weiteren Erläuterung der Erfindung wird auf die Zeichnung verwiesen, in der ein Ausführungsbeispiel im Längsschnitt vereinfacht dargestellt ist.To further explain the invention, reference is made to the drawing, in which an embodiment in Longitudinal section is shown in simplified form.

Klöckner-HumbolcJt-DeufzAG /Λ IT^ ΟΠΟ .· · *\' I - \." I 324 7487Klöckner-HumbolcJt-DeufzAG / Λ IT ^ ΟΠΟ. · · * \ 'I - \. "I 324 7487

~ 4 - 17.12.1982~ 4 - December 17, 1982

D 82/46D 82/46

In der Figur ist mit 1 ein Tellerventil bezeichnet, das einen Ventilboden 2 aufweist. Der Ventilboden 2 ist von einem Wärmeschutzschild 3 abgedeckt, welcher, im Längsschnitt gesehen, eine U-förmige Gestalt hat. Ein Rand 4 des Wärmeschutzschildes 3 ist hierbei mittels Schweißung in der Randzone des Ventilbodens 2 befestigt. Dieser Schweißvorgang dient gleichzeitig dazu, in dieser Randzone eine Ventilsitzpanzerung 5 aufzutragen. Durch die Anordung des u-förmigen Wärmeschutzschildes 3 am Ventilboden wird ein Isolierraum 6 geschaffen, der hohe Temperaturen vom Tellerventil 1 fernhält.In the figure, 1 denotes a poppet valve that has a valve base 2. The valve base 2 is covered by a heat shield 3, which, in longitudinal section seen has a U-shaped shape. An edge 4 of the heat shield 3 is here by means of welding in the Edge zone of the valve base 2 attached. This welding process is also used in this edge zone Apply valve seat armor 5. The arrangement of the U-shaped heat shield 3 on the valve base is an insulating space 6 is created, which keeps high temperatures away from the poppet valve 1.

Claims (2)

KlockHrTHunbcWt-Ueul/AG £Λ HHLmSftjS*' .· - ; .'·'.'*".'.· 324748 5000 Köln 80, den'"l7. Dezember 1982 Unser Zeichen: D 82/46 AE-ZPB Ca/Bi PatentansprücheKlockHrTHunbcWt-Ueul / AG £ Λ HHLmSftjS * '. · -; . '·'. '* ".'. · 324748 5000 Cologne 80, the '" l7. December 1982 Our reference: D 82/46 AE-ZPB Ca / Bi patent claims 1. 1 Tellerventil für Brennkraftmaschinen, an dessen Ventilboden ein aus vorzugsweise korrosionsbeständigen und thermisch hoch belastbarem Werkstoff bestehender Wärmeschutzschild angeordnet ist,1. 1 poppet valve for internal combustion engines, on the valve base of which a heat protection shield, preferably made of corrosion-resistant and thermally highly resilient material, is arranged, dadurch gekennzeichnet, daß der Wärmeschutzschild (3), im Längsschnitt gesehen, U-förmig ausgebildet ist und an seinem Rand (4) unter Schaffung eines sich über den Ventilboden (2) erstreckenden Isolierrauines (6) bei gleichzeitiger Auftragung einer Ventilsitzpanzerung (5) mit dem Tellerventil (1) verschweißt ist.characterized in that the heat shield (3), seen in longitudinal section, is U-shaped and on its edge (4) creating an insulating room (6) extending over the valve base (2) simultaneous application of valve seat armor (5) is welded to the poppet valve (1). 2. Tellerventil für Brennkraftmaschinen nach Anspruch2. poppet valve for internal combustion engines according to claim 1,1, dadurch gekennzeichnet, daß der Isolierraum (6) mit einem wärmedämmendem Material, vorzugsweise Asbest oder Wolframoxydpulver gefüllt ist.characterized in that the insulating space (6) with a insulating material, preferably asbestos or tungsten oxide powder is filled.
DE19823247487 1982-12-22 1982-12-22 Poppet valve for internal combustion engines Withdrawn DE3247487A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823247487 DE3247487A1 (en) 1982-12-22 1982-12-22 Poppet valve for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823247487 DE3247487A1 (en) 1982-12-22 1982-12-22 Poppet valve for internal combustion engines

Publications (1)

Publication Number Publication Date
DE3247487A1 true DE3247487A1 (en) 1984-06-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823247487 Withdrawn DE3247487A1 (en) 1982-12-22 1982-12-22 Poppet valve for internal combustion engines

Country Status (1)

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DE (1) DE3247487A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998036159A1 (en) 1997-02-14 1998-08-20 Lsp Innovative Automotive Systems Gmbh Gas shuttle valve, and method for measuring the pressure in the combustion chamber of an internal combustion chamber
US20170067419A1 (en) * 2014-05-30 2017-03-09 Toyota Jidosha Kabushiki Kaisha Supercharged internal combustion engine
DE102018127256A1 (en) 2018-10-31 2020-04-30 Man Truck & Bus Se Valve with a cover for an internal combustion engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1868138A (en) * 1930-04-10 1932-07-19 Edwin J Fisk Poppet valve
US3426741A (en) * 1968-04-03 1969-02-11 Thomas E Haagen Diesel engine poppet valve
GB1215972A (en) * 1967-05-25 1970-12-16 Semt Improvements in or relating to poppet valves
US4300492A (en) * 1978-05-22 1981-11-17 Eaton Corporation Thermal barrier valve
DE2951317C2 (en) * 1979-12-20 1982-06-16 Krupp Mak Maschinenbau Gmbh, 2300 Kiel Process for the manufacture of poppet valves

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1868138A (en) * 1930-04-10 1932-07-19 Edwin J Fisk Poppet valve
GB1215972A (en) * 1967-05-25 1970-12-16 Semt Improvements in or relating to poppet valves
US3426741A (en) * 1968-04-03 1969-02-11 Thomas E Haagen Diesel engine poppet valve
US4300492A (en) * 1978-05-22 1981-11-17 Eaton Corporation Thermal barrier valve
DE2951317C2 (en) * 1979-12-20 1982-06-16 Krupp Mak Maschinenbau Gmbh, 2300 Kiel Process for the manufacture of poppet valves

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998036159A1 (en) 1997-02-14 1998-08-20 Lsp Innovative Automotive Systems Gmbh Gas shuttle valve, and method for measuring the pressure in the combustion chamber of an internal combustion chamber
US20170067419A1 (en) * 2014-05-30 2017-03-09 Toyota Jidosha Kabushiki Kaisha Supercharged internal combustion engine
US10253732B2 (en) * 2014-05-30 2019-04-09 Toyota Jidosha Kabushiki Kaisha Supercharged internal combustion engine
DE102018127256A1 (en) 2018-10-31 2020-04-30 Man Truck & Bus Se Valve with a cover for an internal combustion engine
DE102018127256B4 (en) 2018-10-31 2023-12-21 Man Truck & Bus Se Valve with a cover for an internal combustion engine

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8141 Disposal/no request for examination