DE821766C - Pressure pump - Google Patents

Pressure pump

Info

Publication number
DE821766C
DE821766C DEM3898A DEM0003898A DE821766C DE 821766 C DE821766 C DE 821766C DE M3898 A DEM3898 A DE M3898A DE M0003898 A DEM0003898 A DE M0003898A DE 821766 C DE821766 C DE 821766C
Authority
DE
Germany
Prior art keywords
pressure
piston
pressure pump
pump according
eccentric
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
DEM3898A
Other languages
German (de)
Inventor
Franz Braun
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.)
F X MEILLER FA
Original Assignee
F X MEILLER FA
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 F X MEILLER FA filed Critical F X MEILLER FA
Priority to DEM3898A priority Critical patent/DE821766C/en
Application granted granted Critical
Publication of DE821766C publication Critical patent/DE821766C/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
    • F04B1/0426Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
    • F04B1/043Hydraulic arrangements
    • 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
    • F04B1/0435Arrangements for disconnecting the pistons from the actuated cam
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/1002Ball valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

Die bisher im Lastwagen zum Betätigen von livdraulisclien Anlagen, wie z. B. hydraulischen Kipper und Hebevorrichtungen, verwendeten Druckpumpen für Flüssigkeiten haben den Nachteil, daß sie einen abschaltbaren Antrieb erfordern, der meist sehr teuer ist. Durch Exzenterwelle an-(,l,etriel)ene Druckpumpen sind bekannt. Sie besitzen entweder Pleuel oder federbelastete Kolben und für jeden Kolben ein Saug- und Druckventil.The previously in the truck to operate livdraulic systems, such as B. hydraulic dump trucks and lifting devices, pressure pumps used for Liquids have the disadvantage that they require a drive that can be switched off. which is usually very expensive. By eccentric shaft on - (, l, etriel) ene pressure pumps are known. They either have connecting rods or spring-loaded pistons and for each piston a suction and pressure valve.

Bei der vorliegenden Erfindung handelt es sich um eine Druckpumpe für Flüssigkeiten, deren Exzenter oder Kurbelwelle ständig mitläuft, also nicht abgeschaltet zu werden braucht. Dadurch vereinfacht sich der Antrieb, und es ist die Möglichkeit Begehen, beim Fehlen eines Nebengetriebes diese Pumpen von irgendeiner geeigneten Stelle des Motors aus anzutreiben.The present invention is a pressure pump for liquids whose eccentric or crankshaft runs constantly, i.e. not needs to be turned off. This simplifies the drive, and it is the possibility of committing these pumps from any one in the absence of a secondary gear appropriate point of the motor to drive.

Die Fig. i bis 3 zeigen drei Ausführungsbeispiele. In dem Gehäuse i i,st die Exzenterwelle 2 gelagert, deren Lager 3 gegen den aus dem Arbeitskoll>en 4 und dem Steuerkolben j bestehenden Stufenkolben drückt, dessen kleiner Steuerkolben 5 in den Druckraum 6 der Pumpe ragt. Das Saugventil 7 und das Druckventil 8 entsprechen der üblichen Bauart bei Pumpen. Herrscht im Druckraum 6 Druck. so wird durch den Steuerkolben 5 der Arbeitskolben 4 gegen den Exzenter gedrückt. Bei dieser Bewegung wird im Raum 9 über Flüssigkeit angesaugt. Durch den Exzenter wird der Arbeitskolben 4 in den Raum 9 gedrückt, wodurch die darin befindliche Flüssigkeit über das Druckventil 8 in den Druckraum 6 gedrückt wird. Herrscht im Raum 6 kein Druck, so kann kein Druck auf den Steuerkolben 5 erfolgen, somit wird auch der Arbeitskolben nicht bewegt, er bleibt in der Ruhelage und die Exzenterwelle läuft leer.FIGS. I to 3 show three exemplary embodiments. In the case i i, the eccentric shaft 2 is mounted, the bearings 3 of which against the one from the working cylinder 4 and the control piston j presses the existing stepped piston, its small control piston 5 protrudes into the pressure chamber 6 of the pump. The suction valve 7 and the pressure valve 8 correspond the usual design for pumps. There is pressure in pressure chamber 6. so becomes through the Control piston 5 of the working piston 4 pressed against the eccentric. With this movement is sucked in via liquid in space 9. The working piston is driven by the eccentric 4 pressed into the space 9, whereby the liquid located therein via the pressure valve 8 is pressed into the pressure chamber 6. If there is no pressure in room 6, none can Pressure is applied to the control piston 5 so that the working piston is not moved either, it remains in the rest position and the eccentric shaft runs empty.

Zum Ingangsetzen der Pumpe ist es also notwendig, im Druckraum 6 Druck zu erzeugen; dies kann beispielsweise durch einen Kolben io erfolgen, der auf die an den Druckraum 6 an-,geschlossene und nach außen völlig abgesperrte Leitung einen Druck ausübt, durch den der Steuerkolben 5 beaufschlagt wird, so daß die Pumpe zu arbeiten beginnt. Der Stufenkolben 4 und 5 kann sowohl in einem Stück sein als auch aus zwei einzelnen Kolben bestehen.To start the pump, it is therefore necessary to have 6 pressure in the pressure chamber to create; this can be done for example by a piston io, which is on the to the pressure chamber 6, a closed and completely shut off line to the outside Exerts pressure through which the control piston 5 is acted upon, so that the pump closes work begins. The stepped piston 4 and 5 can be in one piece as well consist of two individual pistons.

In Fig.2 ist beispielsweise eine Ausführungsform. gezeigt, bei der die Flüssigkeit aus dem Kurbelgehäuse angesaugt wird und (las Saugventil im Arbeitskolben .4 und das Druckventil i i konzentrisch zum Steuerkolben -5 ausgebildet sind.In Figure 2, for example, is an embodiment. shown at the the liquid is sucked out of the crankcase and (read the suction valve in the working piston .4 and the pressure valve i i are designed concentrically to the control piston -5.

In Fig.3 ist eine ähnliche Ausführung gezeigt, bei welcher die Kolben 4 und 5 fest miteinander verbunden sind und eine Feder 8 sowohl das Druckventil i i schließt als auch den .yrheitskolben .4 in der Ruhelage hält.In Figure 3 a similar embodiment is shown in which the piston 4 and 5 are firmly connected to each other and a spring 8 is both the pressure valve i i closes and holds the .yrheitskolben .4 in the rest position.

Mehrere dieser Pumpen können auf einer finit mehreren Exzentern versebenen Welle nebeneinander angeordnet werden oder auch sternförmig bzw. radial um einen oder mehrere 1?xzenter.Several of these pumps can be leveled on a finite number of eccentrics Shaft are arranged next to each other or in a star shape or radially around one or several 1? xzenter.

Claims (6)

PATENTAVSPRCCHE: i. Durch Exzenter lietütigte Fliissigkeitsdruckpumpe, dadurch gekennzeichnet, daß der Arbeitskolben (4) in der einen Richtung durch den Exzenter (2, 3), in der anderen Richtung durch den im Druckraum (6) der Flüssigkeit herrschenden Druck über einen in diesen Druckraum ragenden Steuerkolhen (,5) beeinflußt wird. PATENT PROCEEDINGS: i. Liquid pressure pump supplied by an eccentric, characterized in that the working piston (4) in one direction by the Eccentric (2, 3), in the other direction through the fluid in the pressure chamber (6) The prevailing pressure is influenced by a control piston (5, 5) projecting into this pressure chamber will. 2. Druckpumpe nach Anspruch i, dadurch gekennzeichnet, daß Mittel, z. 13. ein zusätzlicher Kolben (io), zur Erzeugung des für die Inbetriebnahme erforderlichen Anfangsdruckes in dem Druckraum (6) vorgesehen sind. 2. Pressure pump according to claim i, characterized in that means, for. 13th an additional piston (io) to generate the required for commissioning Initial pressure are provided in the pressure chamber (6). 3. Druckpumpe nach Anspruch i und 2, dadurch gekennzeichnet, daß das .Druckventil (i i) oder das Saugventil (7) oder beide konzentrisch zum Arbeitskolben (4) oder in demselben angeordnet sind. 3. Pressure pump according to claim i and 2, characterized in that the .Druckventil (i i) or the suction valve (7) or both are arranged concentrically to the working piston (4) or in the same. 4. Druckpumpe nach Anspruch i bis 3, dadurch gekennzeichnet, daß der Arbeitskolben (4) nach Absinken des Flüssigkeitsdruckes durch eine Feder (8) in der Endlage, in welcher die Exzenterweile keine Bewegung des Kolbens bewirken kann, gehalten wird. 4. Pressure pump according to claim i to 3, characterized in that the working piston (4) after the liquid pressure has dropped due to a spring (8) in the end position, in which the eccentric meanwhile cannot cause any movement of the piston is held. 5. Druckpumpe nach Anspruch ,4, dadurch gekennzeichnet, daß die Feder (<8) auch als Schließfeder für (las Druckventil dient. 5. Pressure pump according to claim 4, characterized in that the spring (<8) also serves as a closing spring for (the pressure valve. 6. Druckpumpe nach Anspruch i bis 5, dadurch gekennzeichnet, (1a13 mehrere Druckpumpen nebeneinander oder radial zur Antriebswelle angeordnet und durch einen oller mehrere auf dieser angeordnete Exzenter betätigt werden.6. Pressure pump according to claim i to 5, characterized in that (1a13 several pressure pumps side by side or radially to Drive shaft arranged and several eccentrics arranged on this by an oller be operated.
DEM3898A 1950-06-10 1950-06-10 Pressure pump Expired DE821766C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM3898A DE821766C (en) 1950-06-10 1950-06-10 Pressure pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM3898A DE821766C (en) 1950-06-10 1950-06-10 Pressure pump

Publications (1)

Publication Number Publication Date
DE821766C true DE821766C (en) 1951-11-19

Family

ID=7292403

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM3898A Expired DE821766C (en) 1950-06-10 1950-06-10 Pressure pump

Country Status (1)

Country Link
DE (1) DE821766C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422836A1 (en) * 1978-04-11 1979-11-09 Girling Ltd FLUID PUMPS
EP1079107A2 (en) * 1999-08-27 2001-02-28 Delphi Technologies, Inc. Fuel pump with accumulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422836A1 (en) * 1978-04-11 1979-11-09 Girling Ltd FLUID PUMPS
EP1079107A2 (en) * 1999-08-27 2001-02-28 Delphi Technologies, Inc. Fuel pump with accumulator
EP1079107A3 (en) * 1999-08-27 2002-06-12 Delphi Technologies, Inc. Fuel pump with accumulator

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