DE362522C - Rotary valve relief for water column machines - Google Patents

Rotary valve relief for water column machines

Info

Publication number
DE362522C
DE362522C DEST35064D DEST035064D DE362522C DE 362522 C DE362522 C DE 362522C DE ST35064 D DEST35064 D DE ST35064D DE ST035064 D DEST035064 D DE ST035064D DE 362522 C DE362522 C DE 362522C
Authority
DE
Germany
Prior art keywords
rotary valve
water column
valve
valve relief
column machines
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
DEST35064D
Other languages
German (de)
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.)
Maxitrol GmbH and Co KG
Original Assignee
Steinle and Hartung GmbH
Publication date
Priority to DEST35064D priority Critical patent/DE362522C/en
Application granted granted Critical
Publication of DE362522C publication Critical patent/DE362522C/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
    • F01L31/00—Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L15/00 - F01L29/00
    • F01L31/08—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
    • F01L31/18—Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear specially for rotary or oscillatory valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/08—Distributing valve-gear peculiar thereto

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Taps Or Cocks (AREA)
  • Details Of Valves (AREA)

Description

Drehschieberentlastung bei Wassersäulenmaschinen. Wassersäulenmaschinen mit einer Welle, die :einen für mehrere Treibzylinder gemeinschaftlichen Drehmuschelschieber bewegen, sind :bekannt. Bei einigermaßen großen Wassendurchflußgeschwin.digkeiten erhalten solche Drehschieber ;ziemlich bedeutende :Abmessungen und ,haben, zumal als Flachschieber, infoläedessen sehr bedeutende Reibungen, die den Wirkungsgrad der .Maschine erheblich herabsetzen. würden. Es ist infolgedessen irgendeine Entlastung des Schieiberspiegels vom Wasserdruck erforderlich. Würde man den Schieber einfach auf seine Welle starr stützen, ,so würde bei :der geringsten Abnutzung,des Schiebers -diesier nicht mehr mit der erforderlichen Pressung auf den Sch.ieb.erspiegel gedrückt werden. Dies sucht die vorliegende Erfindung zu verhindern.Rotary valve relief for water column machines. Water column machines with a shaft that: a rotary valve shared by several drive cylinders move are: known. At reasonably high water flow rates get such rotary valve; quite significant: dimensions and, have, especially since as a flat slide, infoläedessen very significant friction that affects the efficiency the .machine considerably. would. It is, therefore, some kind of relief of the window mirror required by the water pressure. You would just use the slide support rigidly on its shaft, so would with: the slightest wear, the slide -This is no longer pressed with the required pressure on the sliding mirror will. This is what the present invention seeks to prevent.

Der Drehschiaber c, oder in der ;gezeichneten Stellung das Verbindungsrohr b eines Trieübzylinders mit dem Austritt c verbindet, während die anderen, .nicht dargestdllten Zylinder durch denselben Schieber mit :dem Eintritt d des Wassers :in dem Schieberkasten verbunden sind, wird durch die Welle e gedreht, ist aber auf !dieser achsial verschiebbar. Er liegt einerseits auf dem Schidberspiegel f auf, anderseits ist er .durch eine Membran g abgedeckt, ,die sich in: der Mitte auf die Drehachse stützt. .Die untere Seite der Membran ist mit dem Austritt des Wassers in Verbindung, die obere -mit dem Eintritt. Ein Teil des Überdrucks auf .die Membran wird von der Welle e aufgenommen, so daß der Schieber um diesen Betzag entlastet wird. Nutzt sich nun die Schieberlauffläch@e ab, so wird zwar dadurch die Membran etwas durchgebogen, die Entlastung wird infolgedessen uun die für die Durchbiegung erforderliche Kraft vergrößert. Da diese Kraftaber im Verhältnis zu den Gesamtlcräften gering ist, so ist noch lange eine gute Dichtung des Schiebers gewährleistet. Von .der Welle e wird der Entlastungsdruck auf :ein Kugellager h übertragen, wodurch die Reibung auf das äußerste vermindert werden kann. Die Mitte der Membran wird zweckmäßig der mittleren Druckfläche des Schiebers gegenüber gelegt, also etwas einseitig zur Welle.The rotary slide c, or in the position shown, the connecting tube b of a drive cylinder connects to outlet c, while the other, .not cylinder represented by the same slide with: the inlet d of the water : connected in the valve body is rotated by the shaft e, but is on! this axially displaceable. It is on the one hand on the Schidberspiegel f on the other hand it is covered by a membrane g, which is in the middle based on the axis of rotation. The lower side of the membrane is connected to the outlet of the Water in connection, the upper one -with the inlet. Part of the overpressure on .The membrane is taken up by the shaft e, so that the slide around this Betzag is relieved. If the sliding surface @ e wears off, it will the membrane is bent somewhat, the relief is consequently the one for the Deflection force required increased. As this force but in proportion to If the total forces are low, the valve will still seal well for a long time guaranteed. From the shaft e the relief pressure is applied to: a ball bearing h transferred, whereby the friction can be reduced to the utmost. The middle the membrane is expediently placed opposite the middle pressure surface of the slide, so a bit one-sided to the wave.

Claims (1)

PATENTANSPRUCH: Drehschieberentlastung bei Wassersäulenmaschinen, dadurch gekennzeichnet, ,daß der durch den Betriebsdruck auf den Schieherspitgel achsial angepreßte, für alle Zylinder gemeinschaftliche Drehschieber durch eine .mit ihm fest verbundene Memibran .den größten Teil des auf den Schieberspiegel wirkenden Überdrucks auf die Antriebswelle des Schiebers überträgt, wo der Druck anderweitig abgefangen wird. PATENT CLAIM: Rotary valve relief for water column machines, characterized in that the rotary valve, which is axially pressed by the operating pressure on the valve tip and common to all cylinders, transmits most of the overpressure acting on the valve face to the drive shaft of the valve through a membrane firmly connected to it where the pressure is otherwise intercepted.
DEST35064D Rotary valve relief for water column machines Expired DE362522C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST35064D DE362522C (en) Rotary valve relief for water column machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST35064D DE362522C (en) Rotary valve relief for water column machines

Publications (1)

Publication Number Publication Date
DE362522C true DE362522C (en) 1922-10-28

Family

ID=7462222

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST35064D Expired DE362522C (en) Rotary valve relief for water column machines

Country Status (1)

Country Link
DE (1) DE362522C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545774A (en) * 1946-02-25 1951-03-20 Donald G Griswold Rotary fluid motor and valve means for controlling the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545774A (en) * 1946-02-25 1951-03-20 Donald G Griswold Rotary fluid motor and valve means for controlling the same

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