DE2238750A1 - CYLINDER HEAD WITH A VALVE SEAT ARRANGED IN THE INLET CHANNEL, IN WHICH THE VALVE PLATE OF A VALVE IS IN THE CLOSED POSITION - Google Patents
CYLINDER HEAD WITH A VALVE SEAT ARRANGED IN THE INLET CHANNEL, IN WHICH THE VALVE PLATE OF A VALVE IS IN THE CLOSED POSITIONInfo
- Publication number
- DE2238750A1 DE2238750A1 DE19722238750 DE2238750A DE2238750A1 DE 2238750 A1 DE2238750 A1 DE 2238750A1 DE 19722238750 DE19722238750 DE 19722238750 DE 2238750 A DE2238750 A DE 2238750A DE 2238750 A1 DE2238750 A1 DE 2238750A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- cylinder head
- valve seat
- closed position
- inlet channel
- 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.)
- Pending
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
- F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
Description
Pr.-lng. h.c. F. PORSCHE KG ■ 7 STUTTGART-ZU FFEN HAUSEN · PORSCHESTRASSE 42Pr.-lng. h.c. F. PORSCHE KG ■ 7 STUTTGART-ZU FFEN HAUSEN · PORSCHESTRASSE 42
Q 60Q 60
Zylinderköpf mit im Einlaßkanal angeordnetem *-£■ ^o /Qy Ventilsitz, in dem der Ventilteller eines Ventils in Schließstellung ruht.Cylinder head with * - £ ■ ^ o / Qy valve seat arranged in the intake port, in which the valve disk of a valve rests in the closed position.
Die Erfindung betrifft einen Zylinderkopf mit im Einlaßkanal angeordnetem Ventilsitz, in dem der Ventilteller eines Ventils in Schließstellung ruht.The invention relates to a cylinder head with a valve seat arranged in the inlet channel, in which the valve disk of a valve rests in the closed position.
Es sind Ventile mit ihren Ventilsitzen bekannt, bei denen der Ventilteller an seinem Umfang kegelig ausgebildet ist. Das Ventil ruht-in einem entsprechend ausgebildeten Ventilsitz im Zylinderblock bzw.-kopf. Bei dieser Ausbildung der Dichtflächen ist beim öffnen und Schließen der Ventile ein genauer Durchflußkoeffizient nicht festlegbar.Valves with their valve seats are known in which the valve disk is conical on its circumference. The valve rests in a correspondingly designed valve seat in the cylinder block or head. With this design of the sealing surfaces, the valves open and close exact flow coefficient cannot be determined.
Demgegenüber liegt der Erfindung die Aufgabe zugrunde, ein Ventil mit entsprechendem Ventilsitzring im Zylinderkopf zu schaffen, bei dem die Hauptdichtfläche in geringerem Umfang belastet wird, wodurch die Abnutzung geringer ist. Ferner ist der Durchflußkoeffizient genau festlegbar.In contrast, the invention has for its object to provide a valve with a corresponding valve seat ring in the cylinder head, wherein the main sealing surface is charged to a lesser extent, whereby the wear is lower. Furthermore, the flow coefficient can be precisely determined.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Ventilteller eine zylindrische Form aufweist und in einem einen Ventilsitz bildenden zylindrischen Ventilsitzring im Zylinderkopf ruht, wobei der Ventilteller eine zur Bewegungs richtung des Ventils verlaufende senkrechte Dichtfläche und eine waagerechte Dichtfläche besitzt. This object is achieved according to the invention in that the valve disk has a cylindrical shape and rests in a cylindrical valve seat ring forming a valve seat in the cylinder head , the valve disk having a vertical sealing surface and a horizontal sealing surface extending to the direction of movement of the valve.
Mit dem erfindungsgemäßen Ventil ist in vorteilhafter Weise erreicht, daß eindeutig der Durchflußkoeffizient zwischen Ventil und Sitz festlegbar ist. With the valve according to the invention it is achieved in an advantageous manner that the flow coefficient between valve and seat can be clearly established.
-2--2-
S/0324)S / 0324)
-er--he- Q 60Q 60
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Die Zeichnung zeigt einen Schnitt durch einen Zylinderkopf mit dem erfindungsgemäßen Ventil, welches aus seinem Ventilsitz knapp abhebt.An embodiment of the invention is shown in the drawing and is described in more detail below. The drawing shows a section through a cylinder head with the valve according to the invention, which just emerges from its valve seat takes off.
Das Ventil besteht aus einem im Zylinderkopf 3 geführten Ventilschaft 7 und einem am freien Ende angeformten Ventilteller 1, der in einem Ventilsitzring 2 des Zylinderkopfes 3 ruht. Das Ventil ist insbesondere als Einlaßventil vorgesehen.The valve consists of one guided in the cylinder head 3 Valve stem 7 and a valve plate 1 molded on the free end, which is located in a valve seat ring 2 of the cylinder head 3 rests. The valve is provided in particular as an inlet valve.
Der Ventilteller 1 ist von zylindrischer Form und besteht vorzugsweise, wie auch der Ventilsitzring, aus Invarstahl· Zur geführten Aufnahme des zylindrischen Ventiltellers 1 ist der Ventilsitzring 2 entsprechend ausgebildet. Er lagert in einer in den Zylinderkopf 3 eingearbeiteten Vertiefung. Im Ventilsitzring 2 liegt der Ventilteller 1 mit einem zur Bewegungsrichtung 4 des Ventils senkrechten Dichtfläche 5 und einer waagerechten Dichtfläche 6.The valve disk 1 is cylindrical and, like the valve seat ring, is preferably made of Invar steel · Zur guided receiving of the cylindrical valve disk 1, the valve seat ring 2 is designed accordingly. He camps in one in the cylinder head 3 incorporated recess. In the valve seat insert 2 is the valve plate 1 with a perpendicular to the direction of movement 4 of the valve sealing surface 5 and a horizontal sealing surface 6.
Aufgrund der zylindrischen Form des Ventiltellers 1 und des Ventilsitzringes 2 kann der Durchflußkoeffizient im senkrechten Spalt zwischen dem Ring 2 und dem Teller 1 genau ermittelt und somit eine entsprechende Einstellung vorgenommen werden.Due to the cylindrical shape of the valve head 1 and the valve seat ring 2, the flow coefficient can be in the vertical The gap between the ring 2 and the plate 1 can be precisely determined and a corresponding setting can thus be made.
Mit dem Ventil und dem Ventilsitzring 2 besteht in einfacher Weise eine Paarungsmöglichkeit, wodurch eine aufeinander abgestimmte Ventileinheit gebildet wird.With the valve and the valve seat ring 2 there is a simple possibility of pairing, whereby one on each other Matched valve unit is formed.
Durch die geringere Belastung der waagerechten Dichtfläche des Ventils ist die Abnutzung der Fläche geringer und somit auch das Spiel der Ventilsteuerung. Die Steuerzeit kann nach dem genau definierten Durchflußkoeffizienten des erfindungsgemäßen Auslaßventils bemessen werden.Due to the lower load on the horizontal sealing surface of the valve, there is less wear and tear on the surface also the play of the valve control. The control time can according to the precisely defined flow coefficient of the invention Exhaust valve are sized.
309886/0324309886/0324
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722238750 DE2238750A1 (en) | 1972-08-05 | 1972-08-05 | CYLINDER HEAD WITH A VALVE SEAT ARRANGED IN THE INLET CHANNEL, IN WHICH THE VALVE PLATE OF A VALVE IS IN THE CLOSED POSITION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722238750 DE2238750A1 (en) | 1972-08-05 | 1972-08-05 | CYLINDER HEAD WITH A VALVE SEAT ARRANGED IN THE INLET CHANNEL, IN WHICH THE VALVE PLATE OF A VALVE IS IN THE CLOSED POSITION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2238750A1 true DE2238750A1 (en) | 1974-02-07 |
Family
ID=5852856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722238750 Pending DE2238750A1 (en) | 1972-08-05 | 1972-08-05 | CYLINDER HEAD WITH A VALVE SEAT ARRANGED IN THE INLET CHANNEL, IN WHICH THE VALVE PLATE OF A VALVE IS IN THE CLOSED POSITION |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2238750A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106466A (en) * | 1976-08-16 | 1978-08-15 | Caterpillar Tractor Co. | Engine valve with recessed seat and annular groove |
| EP0066733A1 (en) * | 1981-06-06 | 1982-12-15 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Internal-combustion engine inlet or exhaust valve |
| DE3741720A1 (en) * | 1987-12-09 | 1989-06-22 | Bayerische Motoren Werke Ag | Lifting valve with valve seat for an engine |
-
1972
- 1972-08-05 DE DE19722238750 patent/DE2238750A1/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106466A (en) * | 1976-08-16 | 1978-08-15 | Caterpillar Tractor Co. | Engine valve with recessed seat and annular groove |
| EP0066733A1 (en) * | 1981-06-06 | 1982-12-15 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Internal-combustion engine inlet or exhaust valve |
| DE3741720A1 (en) * | 1987-12-09 | 1989-06-22 | Bayerische Motoren Werke Ag | Lifting valve with valve seat for an engine |
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