DE1008980B - Arrangement to counter minor deformations of nozzles or valve seats made of plastic material - Google Patents

Arrangement to counter minor deformations of nozzles or valve seats made of plastic material

Info

Publication number
DE1008980B
DE1008980B DEC9665A DEC0009665A DE1008980B DE 1008980 B DE1008980 B DE 1008980B DE C9665 A DEC9665 A DE C9665A DE C0009665 A DEC0009665 A DE C0009665A DE 1008980 B DE1008980 B DE 1008980B
Authority
DE
Germany
Prior art keywords
nozzles
counter
arrangement
plastic material
valve seats
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
DEC9665A
Other languages
German (de)
Inventor
Dipl-Ing Walter Pelikan
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.)
Concordia Masch & Elekt
Original Assignee
Concordia Masch & Elekt
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 Concordia Masch & Elekt filed Critical Concordia Masch & Elekt
Priority to DEC9665A priority Critical patent/DE1008980B/en
Publication of DE1008980B publication Critical patent/DE1008980B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/42Valve seats

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

DEUTSCHESGERMAN

Bei Ventilen, deren Dichtdruck konstruktionsbedingt nur gering ist, z. B. kleine Magnetventile, hat man lange nach einem korrosionsfesten Material gesucht, das sich der verschließenden Ventilnadel gut anpaßt und doch infolge seiner Zähigkeit verschleißfest ist. Metalle eigneten sich nicht immer, da sie durch den hämmernden Schlag der Ventilnadel beim Schließen mehr oder weniger ausgeschlagen wurden. Mit den neuen Plastik-Materialien, wie z. B. Polyamid, kam man dem gewünschten Ziele schon bedeutend näher, doch ergab sich, daß die Materialien entweder zu spröde waren und zu Rissen neigten oder daß sie gegen Druck zu wenig standfest waren, weil sie mit der Zeit infolge einer gewissen Plastizität etwas nachgeben. Die Verbindung mit dem meist metallischen Untergrund war dann nicht mehr dicht, und das Ventil blies ab.For valves whose sealing pressure is only low due to their design, e.g. B. has small solenoid valves For a long time, a corrosion-resistant material was sought that would fit the closing valve needle well adapts and yet is wear-resistant due to its toughness. Metals weren't always suitable because they were were more or less knocked out by the hammering blow of the valve needle when closing. With the new plastic materials, such as B. polyamide, you got the desired goal already significantly closer, but it turned out that the materials were either too brittle and prone to cracking or that they were not stable enough to withstand pressure, because they had a certain plasticity over time give in a little. The connection with the mostly metallic subsurface was then no longer tight, and the valve blew.

Die Erfindung besteht nun darin, zwischen der als Ventilsitz dienenden Plastikdüse und ihrem Bett . bzw. ihrem Haltering einen gummiartig elastischen ao Ring unter Vorspannung einzulegen, der die geringen plastischen Setzungen der Düse ausgleicht, die unter dem Einfluß der zum Dichten und Befestigen nötigen Kraft auftreten.The invention now consists in between the plastic nozzle serving as a valve seat and its bed . or its retaining ring to insert a rubber-like elastic ao ring under pretension, which the small compensates for plastic settlements of the nozzle, which are necessary for sealing and fastening under the influence of the Force occur.

Ein Beispiel dafür gibt Fig. I.An example of this is given in Fig. I.

In Gehäuse 1 ist eine Aussparung 2, in der ein elastischer Ring 3 aus beispielsweise Kunstgummi derart eingelegt ist, daß er etwas über das Niveau der Grundbohrung hinausragt. Auf den Ring 3 wird nun die Plastikdüse 4 aufgesetzt und durch den metallisehen Schraubring 5 fest gegen den Ring 3 gepreßt, so daß dieser infolge seiner Elastizität etwas nachgibt. Sollte nun im Laufe der Zeit der Bund 6 der Plastikdüse 4 sich etwas setzen, so daß zwischen Bund 6 und Schraubring 5 Zwischenraum entstünde, so kann sich bei der erfindungsgemäßen Ausführung trotzdem kein Zwischenraum zwischen Bund 6 und Schraubring 5 bilden, da die Elastizität des Ringes 3 Anordnung, um geringen VerformungenIn the housing 1 is a recess 2 in which an elastic ring 3 made, for example, of synthetic rubber is inserted in such a way that it protrudes slightly above the level of the blind hole. On the ring 3 is now the plastic nozzle 4 put on and pressed firmly against the ring 3 by the metallic screw ring 5, so that this gives way somewhat due to its elasticity. Should now in the course of time the federal government 6 of the Plastic nozzle 4 sit down a little so that there would be space between collar 6 and screw ring 5, so in the embodiment according to the invention there can still be no space between the collar 6 and Form screw ring 5, since the elasticity of the ring 3 arrangement to small deformations

von Düsen oder Ventilsitzen ausfrom nozzles or valve seats

Plastik-Material zu begegnenCounter plastic material

Anmelder:Applicant:

Concordia Maschinen- undConcordia machine and

Elektrizitäts-Gesellschaft m. b. H.,Electricity company m. B. H.,

Stuttgart 13, Talstr. 41Stuttgart 13, Talstr. 41

Dipl.-Ing. Walter Pelikan, Stuttgart,
ist als Erfinder genannt worden
Dipl.-Ing. Walter Pelikan, Stuttgart,
has been named as the inventor

die Düse fest gegen den Schraubring 5 drückt und die Setzung ausgleicht.
Fig. II und III zeigen Abwandlungen von Fig. I.
the nozzle presses firmly against the screw ring 5 and compensates for the settlement.
Figs. II and III show modifications of Fig. I.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Ventilsitzring oder Düse aus abriebfestem Kunststoff, dadurch gekennzeichnet, daß er unter Zwischenschaltung eines unter Vorspannung stehenden Ringes aus gummiartig elastischem Werkstoff in seinem Bett gehalten wird, dessen Elastizität die bleibenden Verformungen des Ventilsitzringes aufnimmt, die unter dem Einfluß der zum Dichten und Befestigen nötigen Vorspannung auftreten.Valve seat ring or nozzle made of abrasion-resistant plastic, characterized in that it is under Interposition of a pretensioned ring made of rubber-like elastic Material is held in its bed, its elasticity the permanent deformation of the valve seat insert absorbs that under the influence of the preload necessary for sealing and fastening appear. In Betracht gezogene Druckschriften:
Deutsche Patentschriften Nr. 29 734, 545 880,
784;
Considered publications:
German patent specifications No. 29 734, 545 880,
784;
britische Patentschrift Nr. 537 616;
USA.-Patentschriften Nr. 2 368 206, 2 481 713.
British Patent No. 537,616;
U.S. Patent Nos. 2,368,206, 2,481,713.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEC9665A 1954-07-16 1954-07-16 Arrangement to counter minor deformations of nozzles or valve seats made of plastic material Pending DE1008980B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC9665A DE1008980B (en) 1954-07-16 1954-07-16 Arrangement to counter minor deformations of nozzles or valve seats made of plastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC9665A DE1008980B (en) 1954-07-16 1954-07-16 Arrangement to counter minor deformations of nozzles or valve seats made of plastic material

Publications (1)

Publication Number Publication Date
DE1008980B true DE1008980B (en) 1957-05-23

Family

ID=7014582

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC9665A Pending DE1008980B (en) 1954-07-16 1954-07-16 Arrangement to counter minor deformations of nozzles or valve seats made of plastic material

Country Status (1)

Country Link
DE (1) DE1008980B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1500290B1 (en) * 1964-09-30 1972-03-09 Varian Associates HIGH VACUUM LEAK VALVE FOR REPEATED OPENING AND CLOSING
DE2255282A1 (en) * 1972-11-11 1974-05-22 Knorr Bremse Gmbh THROTTLE, IN PARTICULAR THROTTLE NON-RETURN VALVE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29734C (en) * E. ST. HOUGH in Brockley, Grafsch. Kent, England Lider for stuffing boxes
DE545880C (en) * 1932-03-07 Friedrich Bonnet Squeegee
GB537616A (en) * 1939-12-29 1941-06-30 Everlasting Valve Co Improvements relating to fluid valves
US2368206A (en) * 1945-01-30 Valve
US2481713A (en) * 1945-04-30 1949-09-13 Bertea Alex Flexible seal check valve
DE855784C (en) * 1950-12-16 1952-11-17 Josef Loessner Spindle seal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29734C (en) * E. ST. HOUGH in Brockley, Grafsch. Kent, England Lider for stuffing boxes
DE545880C (en) * 1932-03-07 Friedrich Bonnet Squeegee
US2368206A (en) * 1945-01-30 Valve
GB537616A (en) * 1939-12-29 1941-06-30 Everlasting Valve Co Improvements relating to fluid valves
US2481713A (en) * 1945-04-30 1949-09-13 Bertea Alex Flexible seal check valve
DE855784C (en) * 1950-12-16 1952-11-17 Josef Loessner Spindle seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1500290B1 (en) * 1964-09-30 1972-03-09 Varian Associates HIGH VACUUM LEAK VALVE FOR REPEATED OPENING AND CLOSING
DE2255282A1 (en) * 1972-11-11 1974-05-22 Knorr Bremse Gmbh THROTTLE, IN PARTICULAR THROTTLE NON-RETURN VALVE

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