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DE1262776B - Fuel piston pump, especially for oil firing - Google Patents

Fuel piston pump, especially for oil firing

Info

Publication number
DE1262776B
DE1262776B DE1964K0053338 DEK0053338A DE1262776B DE 1262776 B DE1262776 B DE 1262776B DE 1964K0053338 DE1964K0053338 DE 1964K0053338 DE K0053338 A DEK0053338 A DE K0053338A DE 1262776 B DE1262776 B DE 1262776B
Authority
DE
Germany
Prior art keywords
pump
piston pump
fuel
fuel piston
oil firing
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.)
Pending
Application number
DE1964K0053338
Other languages
German (de)
Inventor
Dr-Ing Siegfried Kofink
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Priority to DE1964K0053338 priority Critical patent/DE1262776B/en
Priority to GB6508/65A priority patent/GB1102555A/en
Priority to SE03287/65A priority patent/SE366803B/xx
Priority to FR8992A priority patent/FR1445499A/en
Priority to US444097A priority patent/US3302582A/en
Publication of DE1262776B publication Critical patent/DE1262776B/en
Pending 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
    • F04B7/00Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/046Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the fluid flowing through the moving part of the motor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0073Piston machines or pumps characterised by having positively-driven valving the member being of the lost-motion type, e.g. friction-actuated members, or having means for pushing it against or pulling it from its seat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00Feeding or distributing other fuel to combustion apparatus
    • F23K5/02Liquid fuel
    • F23K5/14Details thereof
    • F23K5/142Fuel pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

Brennstoffkolbenpumpe, insbesondere für Ölfeuerungen Die Erfindung betrifft eine Brennstoffkolbenpumpe, insbesondere für Ölfeuerungen, mit hin- und hergehendem Kolben, bei welchem die Kolbenstange aus nichtmagnetischem Werkstoff ausgeführt und in einem Zylinder innerhalb der Magnetspule angeordnet ist und einen außerhalb der Magnetspule angeordneten Magnetanker trägt.Fuel piston pump, in particular for oil firing. The invention relates to a fuel piston pump, especially for oil firing, with back and forth forged piston, in which the piston rod is made of non-magnetic material executed and arranged in a cylinder within the solenoid and a outside of the magnet coil arranged armature carries.

Derartige Brennstoffkolbenpumpen finden eine bevorzugte Verwendung in Verbindung mit Heizungsanlagen bei Kraftfahrzeugen. Bei derartigen Anordnungen wird der Brennstoff durch den hohl ausgeführten Magnetanker und Kolben zentral dem Kolben zugeführt, wobei das Saugventil im Kolben selbst angeordnet ist. Es sind bereits Anordnungen bekannt, bei welchen ein Magnetventil in Verbindung mit einer Pumpe Verwendung findet. Bei diesen bekannten Anordnungen ist jedoch das Ventil von der Pumpe getrennt, was erstens zu einer größeren Bauhöhe führt, zweitens infolge der höheren Anzahl von beweglichen Teilen eine störanfälligere Konstruktion darstellt und drittens einen größeren Materialaufwand bedingt, da diese bekannten Anordnungen zwei Magnetspulen benötigen.Such fuel piston pumps find a preferred use in connection with heating systems in motor vehicles. With such arrangements the fuel is fed through the hollow magnet armature and piston in the center of the Piston supplied, wherein the suction valve is arranged in the piston itself. There are already known arrangements in which a solenoid valve in conjunction with a Pump is used. In these known arrangements, however, the valve separated from the pump, which firstly leads to a greater overall height, secondly as a result the higher number of moving parts represents a more failure-prone construction and thirdly, a greater amount of material required, since these known arrangements need two solenoids.

Der Erfindung liegt die Aufgabe zugrunde, eine Anordnung aufzuzeigen, die infolge der baulichen Vereinigung des Magnetankers mit dem Ventilkörper zu einer betriebssichereren und einfacheren Bauweise führt. Die Lösung der gestellten Aufgabe ist dadurch gekennzeichnet, daß der Magnetanker an seiner rückwärtigen Seite als Ventilsitz ausgebildet ist.The invention is based on the object of showing an arrangement as a result of the structural union of the armature with the valve body to one more reliable and simpler construction leads. The solution to the task at hand is characterized in that the armature on its rear side as Valve seat is formed.

In einer Weiterführung der vorliegenden Erfindung hat es sich als zweckmäßig herausgestellt, daß der Magnetanker durch die Rückholfeder der Pumpe in Ruhestellung gegen ein elastisches Dichtungsglied im Pumpengehäuse angedrückt ist und an dieser Stelle den Zufluß zur Saugleitung verschließt. Hierdurch wird erreicht, daß in besonders einfacher Weise ein Brennstoffmagnetventil gebildet werden kann.In a further development of the present invention, it has been found as expediently shown that the armature by the return spring of the pump pressed against an elastic sealing member in the pump housing in the rest position is and closes the inflow to the suction line at this point. This will achieved that a fuel solenoid valve can be formed in a particularly simple manner can.

Ein Ausführungsbeispiel der Erfindung zeigt die Zeichnung. Hier ist im Schnitt ein Ausführungsbeispiel dargestellt. Erkennbar ist der Druckstutzen 1 mit dem zugeordneten Druckventil 2. Im beidseitig offenen Gehäuse 3 ist die Magnetspule 4 vorgesehen und zentrisch hierzu der Kolben 5 mit der Kolbenstange 6, die im Bereich des aufgesetzten Magnetankers 7 antimagnetisch ist. Befestigt ist der Magnetanker 7 mit Hilfe der Mutter 8, die in der Höhlung 7a des Magnetankers 7 eingelassen ist. Durch diese Ausbildung kann der Magnetanker 7 nach der Erfindung an dem unteren Rand 7 b als Ventilsitz ausgebildet sein, der mit dem im Gehäusedeckel 3 a vorgesehenen Dichtring 11 einen dichten Abschluß bildet. (Der in dieser überraschend einfachen Weise als beweglicher Ventilkörper ausgebildete Magnetanker 7 der Pumpe wird bei Außerbetriebsetzung der Pumpe durch die Kraft der Rückholfeder und die Gefälledruckkraft des Brennstoffes in der Druckleitung b an den Dichtsitz des Dichtungsringes 11 angedrückt.) Durch den in den Saugstutzen 10 eingeführten Pfeil a ist die Durchflußrichtung des Brennstoffes angedeutet. Der Brennstoff fließt nach dem Saugstutzen in der nicht dargestellten Betriebsstellung außen am Magnetanker 7 (Ventilkörper) vorbei und gelangt über die am Umfang der Kolbenstange 5/6 angedeuteten Kanäle in die im Bereich der unteren Totpunktlage des Kolbenbodens 5 a in den Pumpenzylinder 3 b eingelassene Ringnut 3e, von wo er von allen Seiten in den Pumpenraum 13 eintreten kann. Die Dichtung 12 schließt in einfacher Weise den Ventilkanal c von den Gehäuseteilen nach drei Seiten hin ab.The drawing shows an embodiment of the invention. An exemplary embodiment is shown here in section. The pressure port 1 with the associated pressure valve 2 can be seen. In the housing 3, which is open on both sides, the magnet coil 4 is provided and centrally, the piston 5 with the piston rod 6, which is antimagnetic in the area of the attached magnet armature 7. The magnet armature 7 is fastened with the aid of the nut 8, which is let into the cavity 7 a of the magnet armature 7. As a result of this design, the magnet armature 7 according to the invention can be designed as a valve seat on the lower edge 7 b, which forms a tight seal with the sealing ring 11 provided in the housing cover 3 a. (The formed as a movable valve body in this surprisingly simple manner armature 7 of the pump of the pump b is pressed by the force of the return spring and the slope pressure force of the fuel in the pressure line to the sealing seat of the sealing ring 11 for shutdown period.) The introduced into the suction nozzle 10 Arrow a indicates the direction of flow of the fuel. After the suction nozzle, in the operating position not shown, the fuel flows past the magnet armature 7 (valve body) and passes through the channels indicated on the circumference of the piston rod 5/6 into the annular groove embedded in the pump cylinder 3 b in the area of the bottom dead center of the piston head 5 a 3e, from where it can enter the pump chamber 13 from all sides. The seal 12 closes the valve channel c in a simple manner from the housing parts on three sides.

Claims (1)

Patentansprüche: 1. Brennstoffkolbenpumpe, insbesondere für Ölfeuerungen, mit hin- und hergehendem Kolben, dadurch gekennzeichnet, daß der Magnetanker (7) an seiner rückwärtigen Seite als Ventilsitz ausgebildet ist. z. Brennstoffkolbenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß der Magnetanker (7) durch die Rückholfeder (9) der Pumpe in Ruhestellung gegen ein elastisches Dichtungsglied (11) im Pumpengehäuse (3 a) angedrückt ist und in dieser Stellung den Zufluß zur Saugleitung (10) verschließt. 3. Brennstofkolbenpumpe nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Ventilkanal zum Pumpenraum durch einen zwischen dem Deckel -(3a) und der Magnetspule (7) verklemmten Dichtring (12) abgeschlossen ist. In Betracht gezogene Druckschriften: USA.-Patentschriften Nr. 2 981199, 2 790 392.Claims: 1. Fuel piston pump, especially for oil firing, with a reciprocating piston, characterized in that the magnet armature (7) is designed on its rear side as a valve seat. z. Fuel piston pump according to claim 1, characterized in that the magnet armature (7) by the return spring (9) of the pump in the rest position against an elastic sealing member (11) in the pump housing (3 a) is pressed and in this position the inflow to the suction line (10) closes. 3. Fuel piston pump according to claim 1 and 2, characterized in that that the valve channel to the pump chamber through a between the cover - (3a) and the Solenoid (7) jammed sealing ring (12) is completed. Considered References: U.S. Patent Nos. 2,981,199, 2,790,392.
DE1964K0053338 1964-03-14 1964-06-27 Fuel piston pump, especially for oil firing Pending DE1262776B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE1964K0053338 DE1262776B (en) 1964-06-27 1964-06-27 Fuel piston pump, especially for oil firing
GB6508/65A GB1102555A (en) 1964-03-14 1965-02-15 Electromagnetically-actuated reciprocating piston pumps for liquids
SE03287/65A SE366803B (en) 1964-03-14 1965-03-12
FR8992A FR1445499A (en) 1964-03-14 1965-03-12 Fuel piston pump for oil heaters
US444097A US3302582A (en) 1964-03-14 1965-03-15 Electromagnetic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964K0053338 DE1262776B (en) 1964-06-27 1964-06-27 Fuel piston pump, especially for oil firing

Publications (1)

Publication Number Publication Date
DE1262776B true DE1262776B (en) 1968-03-07

Family

ID=7226681

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1964K0053338 Pending DE1262776B (en) 1964-03-14 1964-06-27 Fuel piston pump, especially for oil firing

Country Status (1)

Country Link
DE (1) DE1262776B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2357656A1 (en) * 1973-11-19 1975-05-22 Eberspaecher J DOSING PISTON PUMP, IN PARTICULAR FUEL PISTON PUMP FOR FUEL CONTROLS
DE3025283A1 (en) * 1980-07-04 1982-02-04 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Auxiliary heating device for motor vehicle - uses magnetic valve as dosing device intermittently operated by pulsating fuel supply
DE2366301C2 (en) * 1973-11-19 1983-12-01 Fa. J. Eberspächer, 7300 Esslingen Dosing piston pumps, in particular fuel piston pumps for fuel furnaces
DE4035835A1 (en) * 1990-11-10 1992-05-14 Webasto Ag Fahrzeugtechnik Electromagnetically operated piston pump esp. for dosed delivery of fuel to burner - has magnetic coil and armature and with piston arranged to move in cylinder positioned in housing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790392A (en) * 1952-06-16 1957-04-30 Acf Ind Inc Electric fuel pump
US2981199A (en) * 1956-06-28 1961-04-25 Becorit Grubenausbau Gmbh Fluid pumps

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790392A (en) * 1952-06-16 1957-04-30 Acf Ind Inc Electric fuel pump
US2981199A (en) * 1956-06-28 1961-04-25 Becorit Grubenausbau Gmbh Fluid pumps

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2357656A1 (en) * 1973-11-19 1975-05-22 Eberspaecher J DOSING PISTON PUMP, IN PARTICULAR FUEL PISTON PUMP FOR FUEL CONTROLS
DE2366301C2 (en) * 1973-11-19 1983-12-01 Fa. J. Eberspächer, 7300 Esslingen Dosing piston pumps, in particular fuel piston pumps for fuel furnaces
DE3025283A1 (en) * 1980-07-04 1982-02-04 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Auxiliary heating device for motor vehicle - uses magnetic valve as dosing device intermittently operated by pulsating fuel supply
DE4035835A1 (en) * 1990-11-10 1992-05-14 Webasto Ag Fahrzeugtechnik Electromagnetically operated piston pump esp. for dosed delivery of fuel to burner - has magnetic coil and armature and with piston arranged to move in cylinder positioned in housing

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977