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DE298151C - - Google Patents

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Publication number
DE298151C
DE298151C DENDAT298151D DE298151DA DE298151C DE 298151 C DE298151 C DE 298151C DE NDAT298151 D DENDAT298151 D DE NDAT298151D DE 298151D A DE298151D A DE 298151DA DE 298151 C DE298151 C DE 298151C
Authority
DE
Germany
Prior art keywords
rollers
pump
housing
grid
pressure
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.)
Active
Application number
DENDAT298151D
Other languages
German (de)
Publication of DE298151C publication Critical patent/DE298151C/de
Active legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00Rotary-piston machines or engines
    • F01C1/30Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/30Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die bisher gebräuchlichen Rotationspumpen für höheren Druck sind für viele Zwecke entweder zu schwer, zu umfangreich oder zu umständlich in der Herstellung oder Unterhaltung: Die in der Zeichnung (Fig. ι und 2) dargestellte Pumpe hat einfache, leichte Bauart, nimmt verhältnismäßig wenig Raum ein und läßt sich mit gebräuchlichsten einfachen Mitteln billig und zuverlässig herstellen.The previously used rotary pumps for higher pressure are either for many purposes too heavy, too extensive, or too cumbersome to manufacture or maintain: The pump shown in the drawing (Fig. Ι and 2) has a simple, lightweight design, takes up relatively little space and can be easily combined with the most common simple Produce funds cheaply and reliably.

In dem kreisrunden Gehäuse α dreht sich der zylindrische Körper b, der am Umfang Aussparungen zur Aufnahme von Rollen hat. Die Rollen haben bei beliebiger Länge einen Halbmesser, der nur wenig größer ist als die doppelte Exzentrizität der Pumpe. Wenn die Rollen kleiner wären, so würden sie sich in dem größten Zwischenraum zwischen Gehäuse und Rotationskörper klemmen, wenn sie viel größer wären, so würde der an derselben Stelle seitlich auf dieselben durch die Flüssigkeit ausgeübte Druck übermäßig groß werden. Bei der Drehung der Pumpe schleudern die Rollen nach außen, dichten dadurch ab und . führen wie in einem Rollenlager eine Drehung aus, so daß am Umfang des Rotationskörpers nur rollende Reibung entsteht. Ein seitlicher Druck auf die Rollen erfolgt, abgesehen von dem zu ihrem Vorschub erforderlichen geringen Druck, nur bei den beiden gegenüberliegenden Dichtungsstellen c und d, die den Druckraum von dem Saugraum der Pumpe trennen. Diese Stellen sind so kurz wie möglich gehalten, d. h. ihre Länge ist nur wenig größer als der Abstand der Rollen, so daß im allgemeinen nur je eine Rolle an den beiden Trennungsstellen zur Abdichtung und damit unter seitlichen Druck kommt, die anderen Rollen also ohne Druck und Reibung laufen.In the circular housing α , the cylindrical body b rotates, which has recesses on the circumference for receiving rollers. Regardless of their length, the rollers have a radius that is only slightly larger than twice the eccentricity of the pump. If the rollers were smaller, they would get jammed in the largest space between the housing and the rotating body; if they were much larger, the pressure exerted laterally on them by the liquid at the same point would become excessive. When the pump rotates, the rollers hurl outwards, thus sealing and. perform a rotation as in a roller bearing, so that only rolling friction occurs on the circumference of the rotating body. Lateral pressure on the rollers occurs, apart from the low pressure required to advance them, only at the two opposite sealing points c and d, which separate the pressure chamber from the suction chamber of the pump. These points are kept as short as possible, ie their length is only slightly greater than the distance between the rollers, so that in general only one roller at each of the two separation points is sealed and thus under pressure from the side, the other rollers without pressure and Friction run.

Die Rollen werden vorteilhaft aus mehreren Stücken hergestellt, wie in Fig. 2 angedeutet, damit, wenn ein Hindernis (Sandkorn 0. dgl.) auf der Rollenbahn auftritt, nicht die ganze Rolle auszuweichen hat, sondern nur der betroffene Teil derselben.The rolls are advantageously made from several pieces, as indicated in Fig. 2, so that if an obstacle (grain of sand 0. Like.) occurs on the roller conveyor, not the whole Role has to evade, but only the affected part of the same.

Claims (1)

Patent-Anspruch:Patent claim: Umlaufende Pumpe mit exzentrisch im Gehäuse gelagertem rotierenden zylindrischen Kolben und in ihm verschiebbaren Laufrollen, gekennzeichnet dadurch, daß die Länge der beiden gegenüberliegenden Dichtungsflächen (cundd) auf den Abstand zweier Rollen beschränkt ist und die beiderseitigen Gehäusewände zwischen den Dichtungsstellen (c und d) gitterartig gestaltet sind, so daß die Flüssigkeit durch diese Gitterwände hindurch zunächst in einen Vorraum fließt, der den Ein- bzw. den Auslaßstutzen der Pumpe trägt.Circulating pump with rotating cylindrical piston eccentrically mounted in the housing and sliding rollers in it, characterized in that the length of the two opposite sealing surfaces (cundd) is limited to the distance between two rollers and the housing walls on both sides between the sealing points (c and d) are designed like a grid are, so that the liquid flows through these grid walls through first into an antechamber which carries the inlet and outlet of the pump. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT298151D Active DE298151C (en)

Publications (1)

Publication Number Publication Date
DE298151C true DE298151C (en)

Family

ID=552381

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT298151D Active DE298151C (en)

Country Status (1)

Country Link
DE (1) DE298151C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE929387C (en) * 1953-02-28 1955-06-27 Karl Wittig G M B H Maschf Multi-cell rotary piston compressor
US6158472A (en) * 1998-10-21 2000-12-12 Aeroquip-Vickers International Gmbh Apparatus for damping a pulsation of a fluid conveyed through a conveying device
US6244299B1 (en) 1998-11-13 2001-06-12 Aeroquip Corporation Damping element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE929387C (en) * 1953-02-28 1955-06-27 Karl Wittig G M B H Maschf Multi-cell rotary piston compressor
US6158472A (en) * 1998-10-21 2000-12-12 Aeroquip-Vickers International Gmbh Apparatus for damping a pulsation of a fluid conveyed through a conveying device
US6244299B1 (en) 1998-11-13 2001-06-12 Aeroquip Corporation Damping element

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