DE830437C - Fuel pump for internal combustion engines - Google Patents
Fuel pump for internal combustion enginesInfo
- Publication number
- DE830437C DE830437C DED2759A DED0002759A DE830437C DE 830437 C DE830437 C DE 830437C DE D2759 A DED2759 A DE D2759A DE D0002759 A DED0002759 A DE D0002759A DE 830437 C DE830437 C DE 830437C
- Authority
- DE
- Germany
- Prior art keywords
- internal combustion
- pump
- fuel pump
- combustion engines
- drive
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/12—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary
- F02M59/14—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary of elastic-wall type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
- F02M2700/13—Special devices for making an explosive mixture; Fuel pumps
- F02M2700/1317—Fuel pumpo for internal combustion engines
- F02M2700/1323—Controlled diaphragm type fuel pump
Description
Die Erfindung bezieht sich auf Kraftstoffpumpen für%Brenitkraftmaschinen und betrifft den Antrieb derartiger Pumpen.The invention relates to fuel pumps for fuel engines and relates to the drive of such pumps.
Es dst bekannt, Kraftstoffpumpen mechanisch von einer Hilfsnockenwelle der Brennkraftmaschine anzutreiben. Diese Antriebsart hat den Nachteil, daß die Pumpen beim Anlassen der Brennkraftmaschine nur mit geringer Hubzahl angetrieben werden, so daß die Förderung der Pumpen unzureichend ist.It is known to pump fuel mechanically from an auxiliary camshaft to drive the internal combustion engine. This type of drive has the disadvantage that the Pumps are only driven with a low number of strokes when the internal combustion engine is started so that the delivery of the pumps is insufficient.
Man hat aus diesem Grunde die Kraftstoffpumpen elektrisch angetrieben, und zwar mit Hilfe einer Magnetspule mit Tauchkolben, wobei der Spulenstrom durch vom tauchkolben betätigte Kontakte gesteuert wird. Der elektrisch° Antrieb der Kraftstoffpumpen hat den Nachteil, daß der Strom für die Erregung der Magnetspule der Batterie entnommen und eiese daher häufiger als sonst geladen werden muß, was unerwünscht ist und zudem die Lebensdauer der Batterie herabsetzt. Für die Verwendung einer größeren Batterie ist jedoch, insbesondere .bei Fahrzeugen, häufig der erforderliche kaum nicht vorhanden.For this reason the fuel pumps were driven electrically, with the help of a solenoid with a plunger, the coil current through contacts operated by the plunger are controlled. The electric drive of the fuel pumps has the disadvantage that the current for exciting the magnetic coil is drawn from the battery and it therefore has to be charged more frequently than usual, which is undesirable and also reduces the service life of the battery. For using a larger battery however, especially in the case of vehicles, the required information is often hardly available.
Die Nachteile beider Antriebsarten lassen sich vermeiden, wenn die Pumpe erfindungsgemäß sowohl mit mechanischen wie mit elektrischen Antriebsmitteln ausgerüstet ist. In diesem Falle kann die Pumpe bei nicht ausreichender Drehzahl des mechanischen Antriebes, also insbesondere beim Anlassen des Motors, elektrisch und bei ausreichender Drehzahl des Motors mechanisch angetrieben werden.The disadvantages of both types of drive can be avoided if the Pump according to the invention with both mechanical and electrical drive means is equipped. In this case, the pump can run at insufficient speed of the mechanical drive, especially when starting the engine, electrically and driven mechanically when the engine speed is sufficient.
Gegebenenfalls kann der Schalter für den elektrischen Antrieb mit dem Anlaßschalter für den Anwurfsmotor der Brennkraftmasch.ine verbunden und so die Dauer des elektrischen Antriebes auf die Anlaßzeit der Brennkraftmaschine begrenzt sein.If necessary, the switch for the electric drive can also be used connected to the starter switch for the starter motor of the internal combustion engine and so on the duration of the electric drive is limited to the starting time of the internal combustion engine be.
Die Erfindung und weitere Merkmale der Erfindung sind im folgenden an Hand der Zeichnung beschrieben, in .dieser zeigt Abb. t eine Membrankraftstoffpu.mpe mit elektrischem und mechanischem Antrieb gemäß der Erfindung zu Beginn und :\bh. 2 die gleiche Pumpe am Ende des Saughubes.The invention and other features of the invention are as follows described on the basis of the drawing, in this Fig. t shows a membrane fuel pump.mpe with electrical and mechanical drive according to the invention at the beginning and: \ bh. 2 the same pump at the end of the suction stroke.
In der Zeichnung ist das Gehäuse der Membrankraftstoffpumpe m.it t,
die -Membran selbst ist mit :2 bezeichnet. Die l@@fembr.an ist durch eine Feder
3 belastet, die sie in der in Abb. i gezeigten Lage zu
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED2759A DE830437C (en) | 1950-05-11 | 1950-05-11 | Fuel pump for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED2759A DE830437C (en) | 1950-05-11 | 1950-05-11 | Fuel pump for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE830437C true DE830437C (en) | 1952-02-04 |
Family
ID=7030150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED2759A Expired DE830437C (en) | 1950-05-11 | 1950-05-11 | Fuel pump for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE830437C (en) |
-
1950
- 1950-05-11 DE DED2759A patent/DE830437C/en not_active Expired
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