AT149892B - Valve seat for exhaust valves of internal combustion engines. - Google Patents

Valve seat for exhaust valves of internal combustion engines.

Info

Publication number
AT149892B
AT149892B AT149892DA AT149892B AT 149892 B AT149892 B AT 149892B AT 149892D A AT149892D A AT 149892DA AT 149892 B AT149892 B AT 149892B
Authority
AT
Austria
Prior art keywords
valve seat
internal combustion
combustion engines
exhaust
exhaust valves
Prior art date
Application number
Other languages
German (de)
Original Assignee
Tatra Werke 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 Tatra Werke Ag filed Critical Tatra Werke Ag
Application granted granted Critical
Publication of AT149892B publication Critical patent/AT149892B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Ventilsitz für Auspuffventile von Brennkraftmaschinen. 



   Die Erfindung bezieht sich auf einen Ventilsitz für Auspuffventile von Brennkraftmaschinen und besteht darin, dass sich an die unter einem spitzen Winkel zur Innenfläche des Auspuffkanals verlaufende Ventilsitzfläche ein verhältnismässig schmaler, konvex gewölbter Ringwulst glatt   anschliesst,   dessen Wölbung bis zur zylindrischen Auspuffleitungswand geführt ist. Vorzugsweise kann der Ventilsitz an einem besonderen, in das Ventilgehäuse einsetzbaren Ringe ausgebildet sein. Durch die Erfindung wird erreicht, dass die Auspuffgase möglichst schnell und ohne Wirbelung am Ventilsitz vorbeistreichen können, wodurch die Sitzfläche davor geschützt wird, dass sie zu viel Wärme von den Gasen annimmt und zu rasch korrodiert. Es soll also insbesondere die Bildung einer scharfen Kante auf dem Wege der Abgase vermieden werden. 



   Auf der Zeichnung ist die Erfindung beispielsweise veranschaulicht, u. zw. bedeutet 1 ein Ventilgehäuse, in das ein Ring 2 eingepresst ist, der den Ventilsitz 4 für das Auspuffventil 3 aufweist. Die Ventilsitzfläche 4 geht bei 5 in eine Krümmung über, die sich bis auf den Durchmesser des Auspuffkanals 6 allmählich erweitert. Die Strömung der Auspuffgase ist durch die Pfeile auf der rechten Seite der Figur angedeutet. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Valve seat for exhaust valves of internal combustion engines.



   The invention relates to a valve seat for exhaust valves of internal combustion engines and consists in the fact that a relatively narrow, convexly arched annular bead smoothly adjoins the valve seat surface, which extends at an acute angle to the inner surface of the exhaust duct, the curvature of which extends to the cylindrical exhaust pipe wall. The valve seat can preferably be formed on a special ring that can be inserted into the valve housing. What is achieved by the invention is that the exhaust gases can sweep past the valve seat as quickly as possible and without turbulence, thereby protecting the seat surface from accepting too much heat from the gases and corroding too quickly. In particular, the formation of a sharp edge on the way of the exhaust gases should be avoided.



   In the drawing, the invention is illustrated, for example, u. Zw. 1 means a valve housing into which a ring 2 is pressed, which has the valve seat 4 for the exhaust valve 3. The valve seat surface 4 merges at 5 into a curvature which gradually widens to the diameter of the exhaust duct 6. The flow of the exhaust gases is indicated by the arrows on the right-hand side of the figure.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Ventilsitz für Auspuffventile von Brennkraftmaschinen, dadurch gekennzeichnet, dass bei einem Auspuffventil üblicher Art sich an die unter einem spitzen Winkel zur Innenfläche des Auspuffkanals verlaufende Ventilsitzfläche ein verhältnismässig schmaler konvex gewölbter Ringwulst glatt anschliesst, dessen Wölbung bis zur zylindrischen Auspuffleitungswand geführt ist. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Valve seat for exhaust valves of internal combustion engines, characterized in that, in the case of an exhaust valve of the usual type, a relatively narrow, convexly arched annular bead smoothly adjoins the valve seat surface which runs at an acute angle to the inner surface of the exhaust duct, the curvature of which extends to the cylindrical exhaust pipe wall. EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT149892D 1935-12-16 1935-12-16 Valve seat for exhaust valves of internal combustion engines. AT149892B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT149892T 1935-12-16

Publications (1)

Publication Number Publication Date
AT149892B true AT149892B (en) 1937-06-10

Family

ID=3645867

Family Applications (1)

Application Number Title Priority Date Filing Date
AT149892D AT149892B (en) 1935-12-16 1935-12-16 Valve seat for exhaust valves of internal combustion engines.

Country Status (1)

Country Link
AT (1) AT149892B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239353A1 (en) * 1982-10-23 1984-04-26 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Valve seat ring for an intake port of valve-controlled internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239353A1 (en) * 1982-10-23 1984-04-26 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Valve seat ring for an intake port of valve-controlled internal combustion engines

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