DE1262710B - Valve for power and work machines - Google Patents

Valve for power and work machines

Info

Publication number
DE1262710B
DE1262710B DESCH35415A DESC035415A DE1262710B DE 1262710 B DE1262710 B DE 1262710B DE SCH35415 A DESCH35415 A DE SCH35415A DE SC035415 A DESC035415 A DE SC035415A DE 1262710 B DE1262710 B DE 1262710B
Authority
DE
Germany
Prior art keywords
valve
work machines
power
ring
sealing surface
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
Application number
DESCH35415A
Other languages
German (de)
Inventor
Rolf Joeres
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.)
Otto Schuchmacher K G
Original Assignee
Otto Schuchmacher K G
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 Otto Schuchmacher K G filed Critical Otto Schuchmacher K G
Priority to DESCH35415A priority Critical patent/DE1262710B/en
Publication of DE1262710B publication Critical patent/DE1262710B/en
Pending 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)
  • Pressure Welding/Diffusion-Bonding (AREA)

Description

Ventil für Kraft- und Arbeitsmaschinen Die Erfindung betrifft die Verbesserung von Ventilen an Kraft- und Arbeitsmaschinen.Valve for power and work machines The invention relates to Improvement of valves on engines and work machines.

Bei Kraft- und Arbeitsmaschinen, insbesondere bei Schiffsmaschinen mit einem erheblichen Zylinderdurchmesser, stellen sich an den Ventilen oft nach kurzer Betriebszeit erhebliche Schäden an den Ventiltellern durch Reißen, Ausschlagen oder Abbrand ein, die ein Auswechseln der Ventile erforderlich machen. Ventile werden meistens aus legiertem Flußstahl geschmiedet.With prime movers and work machines, especially marine machines with a considerable cylinder diameter, they often adjust to the valves short operating times, considerable damage to the valve disks due to tearing, knocking out or burn-off, which makes it necessary to replace the valves. Valves are mostly forged from alloyed mild steel.

Aus diesem Grunde hat man versucht, die Dichtungsflächen der Ventilteller mit Hartmetallen zu panzern.For this reason, attempts have been made to remove the sealing surfaces of the valve disks to be armored with hard metals.

Um die beschädigten Ventilteller rasch instandzusetzen und auch zur Einsparung von Schweißarbeit in der Neuanfertigung schlägt die Erfindung vor, im äußeren Bereich des Ventiltellers einen vorgefertigten Ring aus hochhitzebeständigem und zähem Werkstoff vorzusehen, der mit dem Ventilteller verschweißt ist.To quickly repair the damaged valve disc and also to Saving of welding work in the new production suggests the invention in outer area of the valve disk a prefabricated ring made of highly heat-resistant and tough material welded to the valve disc.

Das im Schnitt dargestellte Ausführungsbeispiel zeigt einen Ventilteller 1 z. B. einer Schiffsmaschine. Die Berührungsfläche zwischen dem Ventilteller und dem Ring ist zur besseren Sicherung des Ringes gegen späteres Ablösen während des Betriebes bei der Ausführung in der linken Hälfte der Zeichnung mit einem Absatz versehen, bei der Ausführung in der rechten Hälfte ist sie konisch. Zwischen dem Ring 2 bzw. 3 sind Zwischenlagen 5 bzw. 4 von niedrigerer Legierung mit noch höheren Dehnungswerten vorgesehen, als sie der Werkstoff des Ringes aufweist. Zum Beispiel können die Zwischenlagen aus Werkstoff mit 9 % Ni, 15 % Cr und 7 % Mn bestehen.The embodiment shown in section shows a valve disk 1 z. B. a ship engine. The contact surface between the valve head and the ring is to better secure the ring against later detachment during the Operation in the execution in the left half of the drawing with a paragraph provided, in the execution in the right half it is conical. Between the Ring 2 and 3 are intermediate layers 5 and 4, respectively, of lower alloy with even higher ones Elongation values provided than the material of the ring has. For example the intermediate layers can consist of material with 9% Ni, 15% Cr and 7% Mn.

Claims (2)

Patentansprüche: 1. Ventil für Kraft- und Arbeitsmaschinen mit einer Dichtungsfläche aus hochhitzebeständigem und zähem Werkstoff, dadurch g e k e n n -z e i c h n e t, daß die Dichtfläche von einem vorgefertigten Ring gefertigt wird, der mit dem Ventilteller verschweißt ist. Claims: 1. Valve for power and work machines with a Sealing surface made of a highly heat-resistant and tough material, therefore k e n n -z e i c h n e t that the sealing surface is made from a prefabricated ring which is welded to the valve disc. 2. Ventil nach Anspruch 1, dadurch gekennzeichnet, daß der Ventilteller an der Schweißstelle einen Absatz (5) hat oder eine konische Auflagefläche für den Ring. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 1130 236; USA.-Patentschriften Nr. 2101970, 2 316 957, 2587569, 2 734 008.2. Valve according to claim 1, characterized in that the valve disk at the weld point has a shoulder (5) or a conical bearing surface for the ring. Documents considered: German Patent No. 1130 236; U.S. Patent Nos. 2101970, 2,316,957, 2587569, 2,734,008 .
DESCH35415A 1964-07-01 1964-07-01 Valve for power and work machines Pending DE1262710B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH35415A DE1262710B (en) 1964-07-01 1964-07-01 Valve for power and work machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH35415A DE1262710B (en) 1964-07-01 1964-07-01 Valve for power and work machines

Publications (1)

Publication Number Publication Date
DE1262710B true DE1262710B (en) 1968-03-07

Family

ID=7433481

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH35415A Pending DE1262710B (en) 1964-07-01 1964-07-01 Valve for power and work machines

Country Status (1)

Country Link
DE (1) DE1262710B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2101970A (en) * 1933-07-26 1937-12-14 Union Carbide & Carbon Corp Valve seat
US2316957A (en) * 1941-07-30 1943-04-20 Lunkenheimer Co Valve
US2587569A (en) * 1945-11-30 1952-02-26 Crane Co Valve body with projecting seat
US2734008A (en) * 1956-02-07 Method of making heat treating and hardening valves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734008A (en) * 1956-02-07 Method of making heat treating and hardening valves
US2101970A (en) * 1933-07-26 1937-12-14 Union Carbide & Carbon Corp Valve seat
US2316957A (en) * 1941-07-30 1943-04-20 Lunkenheimer Co Valve
US2587569A (en) * 1945-11-30 1952-02-26 Crane Co Valve body with projecting seat

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