DE564168C - Fuel pump - Google Patents
Fuel pumpInfo
- Publication number
- DE564168C DE564168C DEL77864D DEL0077864D DE564168C DE 564168 C DE564168 C DE 564168C DE L77864 D DEL77864 D DE L77864D DE L0077864 D DEL0077864 D DE L0077864D DE 564168 C DE564168 C DE 564168C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- space
- fuel
- pump
- fuel 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
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
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder 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
- 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
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
-
- 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
- F02M2700/1352—Fuel pump with a constant stroke piston without control means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Brennstoffpumpe Die Brennstoffpumpe mit vom Kolben gesteuerten, getrennten Zu- und Rückströmöffnungen gemäß der Erfindung kennzeichnet sich dadurch, daß die von dem Pumpenarbeitsraum zu dem als Nachspeiseraum dienenden Rückströmraum führende Öffnung so angeordnet ist, daß sie beim Saughub des Kolbens früher als die zu dem Zuspeiseraum führende Öffnung von dem Kolben freigelegt wird.Fuel pump The fuel pump with piston-controlled, separate Inflow and return openings according to the invention is characterized in that the leading from the pump working space to the return flow space serving as a make-up space Opening is arranged so that it is earlier than that to the suction stroke of the piston Feed space leading opening is exposed by the piston.
Es werden daher die überschüssigen, an der Pumpenarbeit nicht oder nur teilweise teilnehmenden Brennstoffmengen wieder in die Kolbenbahn eingeführt und aus dem Zuspeiseraum bzw. der Saugleitudg im wesentlichen nur jeweils die Brennstoffmengen entnommen, die zuvor den Düsen zur Verbrennung zugeführt worden sind.There are therefore the excess, not at the pump work or only partially participating amounts of fuel are reintroduced into the piston path and from the feed space or the suction duct, essentially only the amounts of fuel in each case taken, which have previously been fed to the nozzles for combustion.
Es wird dadurch ein Zurückströmen des nicht zur Einspritzung gelangten Brennstoffs in die Saugleitung in weitgehendem Maße ausgeschaltet, so daß die Brennstoffpumpe nur fast stets gleiche Brennstoffmengen zu fördern hat, wodurch die Gleichmäßigkeit des Betriebes gesichert wird. Außerdem wird die Flüssigkeitsbewegung in der Saugleitung möglichst stoßfrei gehalten.As a result, that which has not reached the injection will flow back Fuel in the suction line turned off to a large extent, so that the fuel pump only has to convey almost always the same amount of fuel, which ensures uniformity of operation is secured. It also reduces the movement of liquid in the suction line kept as smooth as possible.
Auf der Zeichnung ist in Abb. i -eine derartige Brennstoffpumpe in einem senkrechten Schnitt in teilweiser Ansicht und in Abb. z in einem waagerechten Schnitt nach der Linie A-B veranschaulicht. In den Abb.3 bis 9 sind verschiedene Arbeitslagen des Pumpenkolbens veranschaulicht.In the drawing, Fig. I shows such a fuel pump in a vertical section in partial view and in Fig. z in a horizontal section Section along the line A-B illustrated. In Figures 3 to 9 are different Working positions of the pump piston illustrated.
In das Pumpengehäuse a sind mittels der Führungen b die Pumpenkolben c in geeigneter Weise eingesetzt und stehen durch die Bohrungen d, die sich jeweils über Führung und Gehäuse erstrecken, einerseits mit dem Zuspeiseraume, andererseits durch die Bohrungen f mit dem Nachspeise- und Rückströmraum g in Verbindung.The pump pistons are in the pump housing a by means of the guides b c used in a suitable manner and are available through the holes d, which are respectively Extend over the guide and housing, on the one hand with the feeder spaces, on the other hand through the holes f with the make-up and return flow space g in connection.
Die Pumpenkolben c sind mit drei Steuerkanten k, 1, m versehen, von denen die Steuerkanten k und 1 durch die Kolbenstirnwand gebildet werden, während die Steuerkantern eine Schrägkante ist, die durch den Kolbenteil cl unterschnitten ist, in welchen auch die Bohrungit ausläuft. Von diesen Steuerkanten arbeitet die Steuerkantek mit der Bohrung d und die Steuerkanten 1 und m mit der Bohrung/ zusammen, welche höher als die Bohrung d liegt.The pump pistons c are provided with three control edges k, 1, m , of which the control edges k and 1 are formed by the piston end wall, while the control edge is an inclined edge which is undercut by the piston part cl, in which the borehole also ends. Of these control edges, the control edge works with the hole d and the control edges 1 and m with the hole / which is higher than the hole d.
Dadurch wird erreicht, daß beim Kolbenhochgang in der Lage des Kolbens c (Abb. 3) Brennstoff sowohl durch den Zuspeiseraum über die Bohrung d als auch durch den Rückström- und Nachspeiseraum über die Bohrung f zuströmen kann.This ensures that when the piston moves up in the position of the piston c (Fig. 3) Fuel both through the feed space via hole d and can flow through the return and make-up space via the bore f.
In der Lage des Kolbens c (Abb. ¢) ist der Kolbenhubraum bereits von der Bohrung d abgesperrt, während aus der Bohrung f entweder Brennstoff in den Kolbenhubraum noch zuströmen kann oder auch 'abströmen kann.In the position of piston c (Fig. ¢) the piston displacement is already from the bore d shut off, while either fuel from the bore f into the piston displacement can still flow in or also 'can flow out.
In der Lage des Kolbens c (Abb. 5) sind die Bohrungen d und f abgesperrt, und in der Lage des Kolbens c (Abb. 6) kann zuviel gespeister Brennstoff über die Bohrungn und die Unterschneidung cl durch die Bohrung d iri den Rückström und Nachspeiseraum wieder austreten.In the position of the piston c (Fig. 5), the bores d and f are blocked, and in the position of the piston c (Fig. 6) too much fuel can flow through the bores and the undercut cl through the bore d iri the return flow and Exit the dessert area again.
Beim Rückgang des Kolbens c wird in der Lage (Abb. 7) zunächst Brennstoff aus dem Nachspeise- und Rückströmraum über den Teilcl und die Bohrungn in den Kolbenhubraum einströmen, in der Lage des Kolbens c (Abb. 8) unmittelbar über die Bohrung f und in der Lage des Kolbens c (Abb. 9) sowohl über die Bohrung/ als auch über die Bohrung d aus der Saugleitung.When the piston c retracts, the position (Fig. 7) initially receives fuel from the make-up and return flow space via the Teilcl and the bores into the piston displacement flow in, in the position of the piston c (Fig. 8) directly above the bore f and in the position of piston c (Fig. 9) both over the bore / and over the bore d from the suction line.
Aus letzterer wird, da die Füllung des Kolbenhubraumes aus der Rückström- und Krachspeiseleitung so gut wie beendigt ist, in der Regel nur so viel Brennstoff nachströmen, also zuvor durch die Einspritzdüse verbraucht worden ist.The latter becomes, since the filling of the piston displacement from the return flow and crash feeder is as good as terminated, usually just as much fuel after flow, so has previously been consumed by the injection nozzle.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL77864D DE564168C (en) | Fuel pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL77864D DE564168C (en) | Fuel pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE564168C true DE564168C (en) | 1932-11-14 |
Family
ID=7284288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL77864D Expired DE564168C (en) | Fuel pump |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE564168C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE768143C (en) * | 1938-05-06 | 1957-09-12 | Daimler Benz Ag | Injection pump, especially for internal combustion engines |
DE3238942A1 (en) * | 1982-10-21 | 1984-04-26 | Robert Bosch Gmbh, 7000 Stuttgart | Bevel edge controlled fuel injection pump for internal combustion engines |
-
0
- DE DEL77864D patent/DE564168C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE768143C (en) * | 1938-05-06 | 1957-09-12 | Daimler Benz Ag | Injection pump, especially for internal combustion engines |
DE3238942A1 (en) * | 1982-10-21 | 1984-04-26 | Robert Bosch Gmbh, 7000 Stuttgart | Bevel edge controlled fuel injection pump for internal combustion engines |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2936223A1 (en) | METHOD AND DEVICE FOR PRODUCING A REACTION MIXTURE FROM FLOWABLE, FOAM OR SOLID COMPONENTS | |
DE2234364A1 (en) | DEVICE MOUNTED ON THE FUNNEL ARM FOR SUPPLYING A MOLDING LUBRICANT | |
DE564168C (en) | Fuel pump | |
DE926050C (en) | Cone nozzle | |
EP0070486A1 (en) | Method and apparatus for the production of a reaction mixture capable to flow of at least two reaction components reacting together for making homogeneous or foamed material | |
DE3021095C2 (en) | Method and device for producing a solid or foam-forming reaction mixture from at least two flowable reaction components | |
DE853727C (en) | Emptying device for centrifuges u. like | |
DE476013C (en) | Pastry filling machine with filling compound storage container and a hollow filling needle which is provided with feed openings and moved in a cylinder | |
DE478898C (en) | Fluid-controlled, inwardly opening fuel injector | |
DE577288C (en) | Fuel pump | |
DE1062489B (en) | Fuel injection pump for internal combustion engines to promote two fuels | |
DE538881C (en) | Zigzag sewing machine with a fabric slide that can be moved across the sewing direction | |
DE596357C (en) | Drive device for the needle bar on sewing machines | |
DE807815C (en) | Control device for driving the control slides of steam boiler feed pumps with parallel working cylinders | |
DE953189C (en) | Flat weft knitting machine with hook knock-off comb | |
DE941703C (en) | Injection pump for internal combustion engines | |
DE562346C (en) | Device on carburetors of internal combustion engines for the temporary enrichment of the mixture | |
DE684898C (en) | Flat weft knitting machine | |
DE848851C (en) | Mold for injection and compression molding machines | |
DE414214C (en) | Control for gas machines working according to the flushing and charging process | |
DE598946C (en) | Call waiting machine | |
DE711857C (en) | Liquid pump with automatic control and stepless backflow regulation | |
DE717804C (en) | Sugar snap device | |
DE570149C (en) | Emptying device for bunkers with floor length slot | |
DE429640C (en) | Fuel pump |