DE900501C - Roll-shaped rotary valve - Google Patents

Roll-shaped rotary valve

Info

Publication number
DE900501C
DE900501C DEH3498D DEH0003498D DE900501C DE 900501 C DE900501 C DE 900501C DE H3498 D DEH3498 D DE H3498D DE H0003498 D DEH0003498 D DE H0003498D DE 900501 C DE900501 C DE 900501C
Authority
DE
Germany
Prior art keywords
cylinder head
rotary valve
aluminum alloy
plated
roll
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.)
Expired
Application number
DEH3498D
Other languages
German (de)
Inventor
Dr-Ing E H Paul Heylandt
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.)
CHARLOTTE HEYLANDT GEB WACHTER
Original Assignee
CHARLOTTE HEYLANDT GEB WACHTER
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 CHARLOTTE HEYLANDT GEB WACHTER filed Critical CHARLOTTE HEYLANDT GEB WACHTER
Priority to DEH3498D priority Critical patent/DE900501C/en
Application granted granted Critical
Publication of DE900501C publication Critical patent/DE900501C/en
Expired 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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F01L7/021—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with one rotary valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Bei walzenförmigen Drehschiebern ist es gebräuchlich, als Laufmaterial der Walze Bronze zu verwenden, während der Kopf und die Dichfungsschuhe aus Gußeisen oder Stahl bestehen. Man hat daher, um leicht entstehende Schwierigkeiten, die sich aus der Wärmedehnung der Metalle ergeben, zu- vermeiden, die walzenförmigen Drehschieber, insbesondere bei Brennkraftmaschinen, aus Gußeisen oder Stahl angefertigt, während der Dichtungsschuh und der Zylinderkopf aus einer Aluminiumlegierung bestehen. Es hat sich aber herausgestellt, daß der Drehschieber auch bei solcher Materialwahl einem Dauerbetrieb nicht gewachsen ist.In the case of cylindrical rotary valves, it is used as a running material the roller to use bronze, while the head and the sealing shoes are made of cast iron or steel. One has therefore to avoid easily arising difficulties that arise result from the thermal expansion of the metals, avoid using the cylindrical rotary valve, especially in internal combustion engines, made of cast iron or steel, while the sealing shoe and the cylinder head are made of an aluminum alloy. It but it has been found that the rotary valve even with such a choice of material is not up to continuous operation.

Erfindungsgemäß wird die Oberfläche des Drehschiebers in an sich 'bekannter -Weise verchromt; außerdem werden die aus Aluminiumlegierung `bestehenden Laufflächen der Zylinderkopfbohrung und ,des Schuhes verzinnt. Dadurch wind eine höhere Lebensdauer bei günstigsten Laufeigenschaften der S,chieberwalze erzielt.According to the invention, the surface of the rotary valve is known per se -Wise chrome-plated; In addition, the aluminum alloy `treads the cylinder head bore and the shoe tinned. This results in a longer service life achieved with the most favorable running properties of the slide roller.

Zur Erläuterung der Erfindung dient ein in einer Abbildung wiedergegebenes Ausführungsbeispiel. Darauf bedeutet- z- den Zylinderkopf, - die Drehschieberwalze, '3 einen Dichtungsschuh, 4 ein zur A`bdiehtung .dienendes Lamellenpaket, 5 die Dichtfläche am Zylinderkopf, 6 die Dichtfläche am Schuh, 7 einen Druckring und 8 eine Ringmutter.To explain the invention, a reproduced in a figure is used Embodiment. On it - z - means the cylinder head, - the rotary valve cylinder, '' 3 a sealing shoe, 4 a lamella set used for sealing, 5 the sealing surface on the cylinder head, 6 the sealing surface on the shoe, 7 a pressure ring and 8 a ring nut.

Die im Inneren mittels Wasser gekühlte Walze a besteht aus Stahl oder Gußeisen und ?hat eine verchromte Oberfläche. Der Zylinderkopf z und; der Dichtungsschuh 3 bestehen aus einer Aluminiumlegierung mit verhältnismäßig großem- Ausdehnungskoeffizienten. Die .der Aufnahmedes Drehschiebers dienende Bohrung dieser Teile braucht nur fein gebohrt zu sein und. ist durch Verzinnen verbessert. Im praktischen Betrieb hat sich ergeben, daß diese Anordnung ebensogut .im kalten wie im warmen Zustand eine ausreichende Dichtheit besitzt. Dies erklärt sich wohl daraus, .daß die Temperatur des Drehschiebers bei Vollast etwas. höher ist als ,die Temperatur der außen .anliegenden Teile. Zwischen dem Kühlwasser des Drehschiebers und dem des Zylinderkopfes ergibt sich ein entsprechender Temperaturunterschied.The inside of the water-cooled roller a is made of steel or Cast iron and? Has a chrome-plated surface. The cylinder head z and; the sealing shoe 3 consist of an aluminum alloy with a relatively large expansion coefficient. The bore of these parts, which is used to accommodate the rotary valve, only needs to be fine to be bored and. is improved by tinning. In practical operation has it turns out that this arrangement is just as good in the cold as in the warm state has sufficient tightness. This is probably explained by the fact that the temperature of the rotary valve at full load. is higher than the temperature of the outside Parts. Between the cooling water of the rotary valve and that of the cylinder head results a corresponding temperature difference.

Claims (1)

PATENTANSPRUCH: Walzenförmiger, im Zylinderkopf umlaufen-,der, wassergekühlter Drehschieber zur Steuerung_ von Kolbenmaschinen, insbesondere von Brenkraftmaschinen, der aus Gußeisen oder Stahl besteht; während die Dichtungsschuhe und der Zylinderkopf aus Aluminiumlegierung gefertigt sind, dadurch gekennzeichnet, daß die Oberfläche,des Drehschiebers in an sich bekannter Weise verchromt ist, während- die aus Aluminiumlegierung bestehenden Laufflächen ,der Zylinderkopfbohrung und des Schuhes verzinnt sind. . Angezogene Druckschriften: Deutsche Patentschriften Nr. 516599, 503300, 545380 380350, 336306, 110475, 90787; österreichische Patentschrift Nr. 133401; französische Patentschriften Nr.737245,55g86,z;. USA.-Patentschrift Nr. 19560-14. PATENT CLAIM: Roller- shaped, rotating in the cylinder head, the water-cooled rotary slide valve for controlling piston engines, in particular internal combustion engines, made of cast iron or steel; while the sealing shoes and the cylinder head are made of aluminum alloy, characterized in that the surface of the rotary valve is chrome-plated in a manner known per se, while the aluminum alloy running surfaces, the cylinder head bore and the shoe are tin-plated. . Cited pamphlets: German Patent Nos. 516599, 503300, 545380 380350, 33 6 306, 110475, 90787; Austrian Patent No. 133401; French patent specification n ° 737245,55g86, z ;. U.S. Patent No. 19560-14.
DEH3498D 1940-02-01 1940-02-01 Roll-shaped rotary valve Expired DE900501C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH3498D DE900501C (en) 1940-02-01 1940-02-01 Roll-shaped rotary valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH3498D DE900501C (en) 1940-02-01 1940-02-01 Roll-shaped rotary valve

Publications (1)

Publication Number Publication Date
DE900501C true DE900501C (en) 1953-12-28

Family

ID=7143603

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH3498D Expired DE900501C (en) 1940-02-01 1940-02-01 Roll-shaped rotary valve

Country Status (1)

Country Link
DE (1) DE900501C (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90787C (en) *
DE110475C (en) *
DE336306C (en) * 1921-04-27 Ernst Gebler Double seat valve
DE380350C (en) * 1923-09-06 Silvio Barison Rotary valve control for internal combustion engines
FR559861A (en) * 1922-03-08 1923-09-22 Anciens Etablissements Panhard Improvements to valvesless engines
DE503300C (en) * 1928-03-24 1930-07-26 H D Eichelberg & Cie G M B H Process for the manufacture of fittings
DE516599C (en) * 1929-11-23 1931-01-24 Felix Singer Dr Ing Dr Tap or gate valve
DE545380C (en) * 1928-10-17 1932-02-29 Bailey Meter Co Valve
FR737245A (en) * 1932-05-18 1932-12-08 Intake and exhaust system for internal combustion or internal combustion engines, by rotating tubes with coincidence lights
AT133401B (en) * 1931-01-22 1933-05-26 Peyinghaus W Eisen & Stahlwerk Method for overcoming the running-in difficulties in bronze, gunmetal, cast iron bearings or other cast iron bearings that do not conform well to the axle shaft.
US1956014A (en) * 1924-11-22 1934-04-24 Chemical Treat Company Inc Wearing part for internal combustion engines

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90787C (en) *
DE110475C (en) *
DE336306C (en) * 1921-04-27 Ernst Gebler Double seat valve
DE380350C (en) * 1923-09-06 Silvio Barison Rotary valve control for internal combustion engines
FR559861A (en) * 1922-03-08 1923-09-22 Anciens Etablissements Panhard Improvements to valvesless engines
US1956014A (en) * 1924-11-22 1934-04-24 Chemical Treat Company Inc Wearing part for internal combustion engines
DE503300C (en) * 1928-03-24 1930-07-26 H D Eichelberg & Cie G M B H Process for the manufacture of fittings
DE545380C (en) * 1928-10-17 1932-02-29 Bailey Meter Co Valve
DE516599C (en) * 1929-11-23 1931-01-24 Felix Singer Dr Ing Dr Tap or gate valve
AT133401B (en) * 1931-01-22 1933-05-26 Peyinghaus W Eisen & Stahlwerk Method for overcoming the running-in difficulties in bronze, gunmetal, cast iron bearings or other cast iron bearings that do not conform well to the axle shaft.
FR737245A (en) * 1932-05-18 1932-12-08 Intake and exhaust system for internal combustion or internal combustion engines, by rotating tubes with coincidence lights

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