DE677079C - Fuel injection pump for internal combustion engines - Google Patents
Fuel injection pump for internal combustion enginesInfo
- Publication number
- DE677079C DE677079C DED73689D DED0073689D DE677079C DE 677079 C DE677079 C DE 677079C DE D73689 D DED73689 D DE D73689D DE D0073689 D DED0073689 D DE D0073689D DE 677079 C DE677079 C DE 677079C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- fuel injection
- internal combustion
- pump body
- combustion engines
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
-
- 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
- F02M59/10—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 characterised by the piston-drive
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
-
- 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
- F02M2700/1388—Fuel pump with control of the piston relative to a fixed cylinder
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Brennstoffeinspritzpumpe für Brennkraftmaschinen Die Erfindung bezieht sich ;auf Einspritzpumpen für Brennkraftmaschinen, in :deren Pumpenkörper eine Kolbenbüchse geführt ist, die zu einem drehbaren Steuerkolben eine bestimmte Stellung beibehalten muß. Solche Kolbenbüchsen haben den Nachteil, daß, wenn die sich insbesondere beim Auswechseln von Ventilteilen oder beim Entlüften oder Reinigen sder Pumpe durch Stoß oder sonstige Einflüsse gegenüber .dem Steuerkolben: verdrehen, die Brennstoffördermenge verändert wird. Bei den bisher bekannten Pumpen dieser Art hat man den übelstand durch die Anordnung einer im Pumpenkörper @eingesetzten Paßschraube o.,dgl. verhindert, deren vorstehender Zapfen in Beine Bohrung ,der Kolbenbüchse eingeführt wird ;und diese dadurch an einer Drehung hindert. Diese Bauart ist naturgemäß in der Herstellung teuer, das Einpassen für eine bestimmte Winkelstellung ist schwierig und eine nachträgliche Änderung der Einstellung meist nur durch Einsetzen neuer Teile möglich.Fuel injection pump for internal combustion engines The invention relates on injection pumps for internal combustion engines, in: the pump body of which has a piston liner is performed, which maintain a certain position to a rotatable control piston got to. Such piston liners have the disadvantage that when the especially when Replacing valve parts or when venting or cleaning the pump Impact or other influences on the control piston: twist the fuel delivery rate is changed. The previously known pumps of this type have the disadvantage by the arrangement of a fitting screw @ inserted in the pump body o., the like. prevents the protruding pin of which is inserted into the bore of the piston sleeve; and this prevents it from rotating. This type of construction is naturally in production expensive, the adjustment for a certain angular position is difficult and a subsequent one Changing the setting is usually only possible by inserting new parts.
Nach vorliegender Erfindung werden diese Nachteile dadurch vermieden, daß durch ein elastisches Glied, z. B. die Rückführfeder des Steuerkolbens, mittels eines oder mehrerer Zwischenglieder ein Reibungsschluß von solcher Stärke zwischen der Kolbenbüchse und dem Pumpenkörper erzeugt wird, daß ein ungewolltes Verdrehen der Kolbenbüchse gegenüber dem Steuerkolben sicher verhindert ist. Das oder die Zwischenglieder sind zweckmäßig ;so ;ausgebildet, daß sie sich an einer schrägen Fläche des Pumpenkörpers',abstützen und mit einer ,anderen Fläche einen radialen Druck ;auf die Kolbenbüchse ausüben. Es ist vorteilhaft, Aals. derartiges Zwischenglied einen federnden Ring von beispielsweise dreieckigem soder trapezförmgem Querschnitt zu verwenden. Selbstverständlich können auch zwei oder mehrere Ringabschnitte benutzt werden.According to the present invention, these disadvantages are avoided by that by an elastic member, for. B. the return spring of the control piston, means one or more intermediate links a frictional engagement of such strength between the piston liner and the pump body is generated that unwanted rotation the piston liner is safely prevented from the control piston. That or that Intermediate links are expedient; so; formed that they are at an incline Surface of the pump body ', and with another surface a radial one Pressure; exert on the piston liner. It is beneficial to eels. such an intermediate link a resilient ring of, for example, a triangular or trapezoidal cross-section to use. Of course, two or more ring sections can also be used will.
Inder Zeichnung ist eine Brennstoffpumpe im Querschnitt dargestellt, die ein Ausführungsbeispiel der Erfindung zeigt.In the drawing, a fuel pump is shown in cross section, which shows an embodiment of the invention.
Im Pumpengehäuse i ist in bekannter Weise eine Nockenwelle z gelagert, welcheauf einen mit einer Rolle 3 versieh:enen Stößel q. einwirkt. - Der rohrförmige Ansatz 5 des Stößels nimmt den Kopf G des Steuerkolbens 7 auf, der in der Zylinderbüchise 8 gleitet. Diese ist in dem eigentlichen Pumpenkörper 9 befestigt, und zwar mittels des Schraubnippels i i, welcher über die beiden gleiclhachsig zur Zylinderbüchse ,angeordneten Ventilgehäuse io auf @dies.elbe einwirkt und sie auf die Ringfläche 9a (des Pumpenkörpers drückt. Der Steuerkolben 7 ,kann mit Hilfe einer Einrichtung, sdie nicht Gegenstand der Erfindung ist, um seine Achse verdreht werden, wobei er mit einer .schrägen Steuerkante i a eine seitliche Bohrung 13 der Zylinderbüchse früher oder später aufdeckt und so mehr oder weniger Brennistöff fördert. Eine Feder 14 :drückt den -Kolben, und den Stößel :auf die Nockenwelle und überträgt erfindungsgemäß ihren Gegendruck ,auf einen: Ring- 15, welcher aufgeschnitten und federnd ,ausgebildet ist. Dieser Federring, der beispielsweise dreieckigen Querschnitt hat, stützt sich an einer schrägen Fläche i6 ,axn Pumpenkörper g ab und übt mit seiner Innenfläche 17 einen radialen Druck auf die Kolbenbüchse 8 aus, so daß zwischen letzterer und dem Pumpenkörper ein Reibungsschluß erzeugt rund ein unbeabsichtigtes Verdrehen der Kolbenbüchse 8 gegenüber dem Steuerkolben 7 vermieden wird.In the pump housing i, a camshaft z is mounted in a known manner, which on a tappet q provided with a roller 3. acts. The tubular extension 5 of the plunger receives the head G of the control piston 7, which slides in the cylinder liner 8. This is fastened in the actual pump body 9 by means of the screw nipple ii, which acts on the same via the two valve housings arranged on the same axis to the cylinder liner and presses it onto the annular surface 9a of the pump body. The control piston 7 can with A device, which is not the subject of the invention, can be rotated about its axis using a. Piston, and the tappet: on the camshaft and, according to the invention, transmits its counter pressure to a: ring , which is cut open and resilient g from and exerts with its inner surface 17 a radial pressure on the piston sleeve 8, so that between the latter and the pump nbody a frictional engagement around an unintentional rotation of the piston sleeve 8 relative to the control piston 7 is avoided.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED73689D DE677079C (en) | 1936-10-18 | 1936-10-18 | Fuel injection pump for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED73689D DE677079C (en) | 1936-10-18 | 1936-10-18 | Fuel injection pump for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE677079C true DE677079C (en) | 1939-06-17 |
Family
ID=7061450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED73689D Expired DE677079C (en) | 1936-10-18 | 1936-10-18 | Fuel injection pump for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE677079C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE853367C (en) * | 1948-12-25 | 1952-10-23 | Klein | Multi-part valve housing for insertion into the cylinder of a piston pump |
DE758837C (en) * | 1940-04-17 | 1956-06-28 | Daimler Benz Ag | Device on a fuel injection pump for internal combustion engines |
DE1046404B (en) * | 1954-08-04 | 1958-12-11 | Kugelfischer G Schaefer & Co | Device for venting the high pressure pump chamber of fuel injection pumps |
-
1936
- 1936-10-18 DE DED73689D patent/DE677079C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE758837C (en) * | 1940-04-17 | 1956-06-28 | Daimler Benz Ag | Device on a fuel injection pump for internal combustion engines |
DE853367C (en) * | 1948-12-25 | 1952-10-23 | Klein | Multi-part valve housing for insertion into the cylinder of a piston pump |
DE1046404B (en) * | 1954-08-04 | 1958-12-11 | Kugelfischer G Schaefer & Co | Device for venting the high pressure pump chamber of fuel injection pumps |
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