DE934453C - Circulating pump - Google Patents

Circulating pump

Info

Publication number
DE934453C
DE934453C DEC8239A DEC0008239A DE934453C DE 934453 C DE934453 C DE 934453C DE C8239 A DEC8239 A DE C8239A DE C0008239 A DEC0008239 A DE C0008239A DE 934453 C DE934453 C DE 934453C
Authority
DE
Germany
Prior art keywords
rotor
housing
cams
hard material
circulating pump
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
DEC8239A
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.)
CAV Ltd
Original Assignee
CAV Ltd
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 CAV Ltd filed Critical CAV Ltd
Application granted granted Critical
Publication of DE934453C publication Critical patent/DE934453C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404Details or component parts
    • F04B1/0408Pistons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404Details or component parts
    • F04B1/0413Cams
    • F04B1/0417Cams consisting of two or more cylindrical elements, e.g. rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/10Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B1/107Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
    • F04B1/1071Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks

Landscapes

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

Description

Die Erfindung betrifft eine umlaufende Pumpe mit einem Läufer, der mehrere in radialen Bohrungen angeordnete Verdrängerkolben enthält, und mit einem Gehäuse mit zylindrischer Innenfläche, die mehrere Nockenvorsprünge zur Betätigung der Verdrängerkolben aufweist, wobei die Bewegung auf die Verdrängerkolben von den Nockenvorsprüngen mittels zwischengeschalteter im Läufer gelagerter Druckstücke übertragen wird. Es ist bekannt, die Nockenvorsprünge aus einem Ring von hartem Werkstoff, der im Gehäuse eingebaut ist, herauszuarbeiten. Damit dieser Ring die erforderliche Verschleißfestigkeit hat, muß ein verhältnismäßig teurer Werkstoff, z. B. Wolframkarbid, verwendet werden. Zweck der Erfindung ist es, die erforderliche Verschleißfestigkeit auf eine wirtschaftlichere Weise als bisher zu erzielen. Das wird gemäß der Erfindung dadurch erreicht, da,ß die Nocken aus im Gehäuse angeordneten Rollen aus hartem Werkstoff bestehen und die aus hartem Werkstoff hergestellten Druckstücke im Läufer gelagert sind.The invention relates to a rotating pump with a rotor that contains a plurality of displacer pistons arranged in radial bores, and with one Housing with a cylindrical inner surface, which has several cam projections for actuation comprises the displacer piston, the movement acting on the displacer piston from the Cam projections by means of interposed pressure pieces stored in the rotor is transmitted. It is known that the cam projections consist of a ring of hard Work out the material that is built into the housing. So that this ring the has the required wear resistance, a relatively expensive material must z. B. tungsten carbide can be used. The purpose of the invention is to provide the required To achieve wear resistance in a more economical way than before. That is achieved according to the invention because, ß the cams arranged in the housing Rollers are made of hard material and those made of hard material Thrust pieces are stored in the rotor.

In der -Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes in Fig. z in einem senkrechten Schnitt und in Fig. 2 in einem waagerechten Schnitt dargestellt. Das Gehäuse a ist aus einem geeigneten Metall hergestellt, während jeder der nach innen gerichteten Nocken aus einer Rolle b aus hartem Werkstoff besteht und im Gehäuse gelagert ist. Das äußere Ende jeder Bohrung im Läufer c ist als rechteckiger Sitz ausgebildet. In jedem Sitz liegt ein entsprechend gestaltetes verschiebbares Druckstück d, das ebenfalls aus hartem Werkstoff hergestellt ist. Am äußeren Ende weist jedes Druckstück eine mittlere Rippe und an sie anschließende Schrägflächen auf. Vorzugsweise ist jedes Druckstück auch mit Nasen e versehen, die in Schlitze von am Läufer befestigten Platten f eingreifen, wodurch das Ausmaß der Auswärtsbewegung der Verdrängerkolben durch die Breite der Schlitze begrenzt wird. In dem Teil der Läuferbohrung zwischen den Druckstücken sind die Verdrängerkolben g untergebracht. Der Läufer c wird durch eine Welle h angetrieben, wodurch die Flüssigkeit gezwungen wird, durch die in der Zeichnung angegebenen Kanäle in die Pumpe hinein- und aus ihr herauszuströmen.In the drawing is an embodiment of the subject matter of the invention in Fig. z in a vertical section and in Fig. 2 in a horizontal section shown. The housing a is made of a suitable metal while each of the inwardly directed cams consists of a roller b made of hard material and is stored in the housing. The outer end of each hole in the rotor c is more rectangular Seat trained. In each seat there is a suitably designed slidable seat Pressure piece d, which is also made of hard material. At the outer end each pressure piece has a central rib and adjacent sloping surfaces on. Preferably, each pressure piece is also provided with lugs e that fit into slots engage by plates f attached to the runner, increasing the extent of the outward movement the displacement piston is limited by the width of the slots. In the part of the The displacement piston g are accommodated in the rotor bore between the pressure pieces. The rotor c is driven by a shaft h, which forces the liquid into and out of the pump through the channels indicated in the drawing to flow out of her.

.Durch die erfindungsgemäße Ausbildung werden nur diejenigen Teile, die hohen Drücken unterworfen und daher der Abnutzung besonders stark ausgesetzt sind, aus hartem Werkstoff hergestellt. Dadurch wird die angestrebte sparsame Verwendung eines solchen Werkstoffes erreicht, ohne daß die Brauchbarkeit der Pumpe beeinträchtigt wird..Due to the design according to the invention, only those parts are subjected to high pressures and therefore particularly exposed to wear and tear are made of hard material. This is the intended economical use such a material achieved without affecting the usefulness of the pump will.

Claims (1)

PATENTANSPRUCH: Umlaufende Pumpe mit einem Läufer, der mehrere in radialen Bohrungen angeordnete Verdrängerkolben enthält, und mit einem Gehäuse mit zylindrischer Innenfläche, die mehrere Nocken zur Betätigung der Verdrängerkälben aufweist, auf welche die Nocken mittels zwischengeschalteter Druckstücke .wirken, dadurch gekennzeichnet, daß die Nocken aus im Gehäuse (d) angeordneten Rollen (b) aus 'hartem Werkstoff bestehen und daß die aus hartem Werkstoff hergestellten Druckstücke (d) im Läufer (c) gelagert sind.PATENT CLAIM: Circulating pump with a rotor that carries several in contains radial bores arranged displacement piston, and with a housing with cylindrical inner surface with several cams for actuating the displacement calves has, on which the cams. act by means of interposed pressure pieces, characterized in that the cams consist of rollers (b) arranged in the housing (d) consist of 'hard material and that the pressure pieces made of hard material (d) are stored in the rotor (c).
DEC8239A 1952-10-07 1953-10-01 Circulating pump Expired DE934453C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB934453X 1952-10-07

Publications (1)

Publication Number Publication Date
DE934453C true DE934453C (en) 1955-10-20

Family

ID=10747721

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC8239A Expired DE934453C (en) 1952-10-07 1953-10-01 Circulating pump

Country Status (1)

Country Link
DE (1) DE934453C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383806A (en) * 1979-11-22 1983-05-17 Lucas Industries Limited Fuel pumping apparatus
US4662825A (en) * 1985-08-05 1987-05-05 Stanadyne, Inc. Hydraulic pump
US5211116A (en) * 1988-08-30 1993-05-18 Sig Schweizerische Industrie-Gesellschaft Bogie for high-speed rail vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383806A (en) * 1979-11-22 1983-05-17 Lucas Industries Limited Fuel pumping apparatus
US4662825A (en) * 1985-08-05 1987-05-05 Stanadyne, Inc. Hydraulic pump
US5211116A (en) * 1988-08-30 1993-05-18 Sig Schweizerische Industrie-Gesellschaft Bogie for high-speed rail vehicles

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