DE828172C - Arrangement for venting fuel injection pumps - Google Patents

Arrangement for venting fuel injection pumps

Info

Publication number
DE828172C
DE828172C DED2512A DED0002512A DE828172C DE 828172 C DE828172 C DE 828172C DE D2512 A DED2512 A DE D2512A DE D0002512 A DED0002512 A DE D0002512A DE 828172 C DE828172 C DE 828172C
Authority
DE
Germany
Prior art keywords
pump
fuel injection
opening
air filter
arrangement
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
DED2512A
Other languages
German (de)
Inventor
Dipl-Ing Heinz Links
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DED2512A priority Critical patent/DE828172C/en
Application granted granted Critical
Publication of DE828172C publication Critical patent/DE828172C/en
Expired legal-status Critical Current

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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/007—Venting means
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/06—Venting
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

Bei Brennstoffeinspritzpumpen für Brerinkraftmaschinen wird in der Regel zur Entlüftung an der Rückseite der Pumpe ein besonderer Raum vorgesehen, der durch Bohrungen mit dem Nockenwellenraum und durch kiemenartige Schlitze in der zumeist als Blechdeckel ausgebildeten Rückwand der Pumpe mit der Außenluft in Verbindung steht.In the case of fuel injection pumps for Brerin engines, the As a rule, a special space is provided for ventilation at the rear of the pump, through holes with the camshaft space and through gill-like slots in the rear wall of the pump, which is mostly designed as a sheet metal cover, with the outside air in Connection.

Für Einspritzpumpen, deren aneinandergereihte Stößel in bekannter Weise durch entsprechende Abflachungen aneinander und durch einander überschneidende, rund gebohrte Führungsbohrungen im Pumpengehäuse geführt sind, wird gemäß der Erfindung vorgeschlagen, den zwischen der äußeren Abflachung des letzten Pumpenstößels in der Reihe und der zugehörigen Führungsbohrung verbleibenden, mit dem Nockenwellenraum in Verbindung stehenden Raum zur Entlüftung der Pumpe über eine vorzugsweise mit der Kurbelwelle achsparallele Öffnung in der Wand des Pumpengehäuses mit der Außenluft zu verbinden. In dieser Verbindungsöffnung wird vorteilhaft ein Luftfilter etwa in Form einer Drahteinlage angeordnet. Die Öffnung kann mittels einer axial durchbohrten Hohlschraube abgeschlossen werden. In diesem Falle wird das Luftfilter vorteilhaft in der Höhlung dieser Hohlschraube untergebracht.For injection pumps whose tappets are lined up in a well-known Way by corresponding flattening on each other and by overlapping, Round drilled guide bores are guided in the pump housing, according to the invention suggested that between the outer flat of the last pump tappet in the row and the associated guide bore remaining with the camshaft space connected space for venting the pump via a preferably with opening parallel to the axis of the crankshaft in the wall of the pump housing with the outside air connect to. An air filter, for example, is advantageous in this connection opening arranged in the form of a wire insert. The opening can be axially drilled through by means of a Banjo bolt to be completed. In this case, the air filter becomes advantageous housed in the cavity of this hollow screw.

Die Zeichnung veranschaulicht ein Ausführungsbeispiel des Erfindungsgegenstandes, und zwar zeigt Fig. i eine Einspritzpumpe in Seitenansicht, wobei der Bereich um die erfindungsgemäß ausgebildete Entlüftungsanordnung im Längsschnitt dargestellt ist, und Fig. 2 den Entlüftungsraum zwischen Pumpenstößel und zugehöriger Führungsbohrung im Querschnitt.The drawing illustrates an embodiment of the subject matter of the invention, namely Fig. i shows an injection pump in side view, the area around the ventilation arrangement designed according to the invention shown in longitudinal section and FIG. 2 shows the ventilation space between the pump tappet and the associated guide bore in cross section.

i ist das Pumpengehäuse, in welchem die Kurbelwelle 2 über Nocken die Pumpenstößel 3 antreibt. Jeder Pumpenstößel 3 weist zwei zur Kurbelwellenachse senkrechte Abflachungen q. auf, wogegen die zugehörigen Führungsbohrungen 5 rund gebohrt sind und einander überschneiden. Während die einander zugekehrten Flächen der benachbarten Stößel aneinander anliegen, verbleibt zwischen der äußeren Abflachung 5 des letzten Stößels in der Reihe und der zugeordneten Führungsbohrung .f ein freier Rautn 6. Dieser Raum ist nach unten mit dem Nockenwellenraum 7 in Verbindung. An einer geeigneten Stelle oberhalb der Kurbelwelle 2 ist nun eine Öffnung 8 vorgesehen, welche die Verbindung des Raumes 6 mit der Außenluft herstellt. In dem dargestellten Fall ist in die (Öffnung 8 eine Hohlschraube 9 mit einer Axialbohrung io eingeschraubt. Im Hohlraum der Schraube 9 ist ein Luftfilter i i untergebracht.i is the pump housing in which the crankshaft 2 via cams which drives the pump plunger 3. Each pump tappet 3 has two to the crankshaft axis vertical flats q. on, whereas the associated guide bores 5 are round are drilled and intersect each other. While the facing surfaces of the adjacent plungers rest against one another, remains between the outer flat 5 of the last plunger in the row and the associated guide hole .f a free one Rautn 6. This space is in connection with the camshaft space 7 at the bottom. At An opening 8 is now provided at a suitable point above the crankshaft 2, which connects the room 6 with the outside air. In the illustrated Case is screwed into the opening 8, a banjo screw 9 with an axial bore io. An air filter i i is housed in the cavity of the screw 9.

Claims (1)

PATENTANSPRÜCHE: i. Brennstoffeinspritzpumpe für Brennkraftmaschinen mit in Reihen angeordneten Pumpenstößeln, welche mittels seitlicher Abflachungen aneinander und mittels einander überschneidender, rund gebohrter Führungsbohrungen im Pumpengehäuse geführt sind, dadurch gekennzeichnet, daß der zwischen der äußeren Abflachung des letzten Pumpenstößels in der Reihe und der zugehörigen Führungsbohrung verbleibende, mit dem Nockenwellenraum in Verbindung stehende Rauni zur Entlüftung der Pumpe über eine vorzugsweise mit der Kurbelwelle achsparallele Öffnung in der Ni'and des Pumpengehäuses mit der Außenluft verbunden ist. z. Brennstoffeinspritzpunipe nach Anspruch i, dadurch gekennzeichnet, daß in der Verbindungsöffnung ein Luftfilter angeordnet ist. 3. Brennstoffeinspritzpumpe nach Anspruch i und 2, dadurch gekennzeichnet, daß die Verbindungsöffnung durch eine axial durchbohrte Hohlschraube abgeschlossen ist. ,I. Brennstoffeinspritzpumpe nach Anspruch i bis 3, dadurch gekennzeichnet, daß dasLuftfilter in der Höhlung der Hohlschraube untergebracht ist. PATENT CLAIMS: i. Fuel injection pump for internal combustion engines with pump tappets arranged in rows, which are guided against one another by means of lateral flats and by means of intersecting, round drilled guide bores in the pump housing, characterized in that the remaining between the outer flat of the last pump tappet in the row and the associated guide bore, with the Camshaft space communicating space for venting the pump via an opening, preferably axially parallel to the crankshaft, in which the side of the pump housing is connected to the outside air. z. Fuel injection pipe according to Claim i, characterized in that an air filter is arranged in the connecting opening. 3. Fuel injection pump according to claim i and 2, characterized in that the connection opening is closed by an axially pierced hollow screw. , I. Fuel injection pump according to Claims i to 3, characterized in that the air filter is accommodated in the cavity of the hollow screw.
DED2512A 1941-07-22 1941-07-22 Arrangement for venting fuel injection pumps Expired DE828172C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED2512A DE828172C (en) 1941-07-22 1941-07-22 Arrangement for venting fuel injection pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED2512A DE828172C (en) 1941-07-22 1941-07-22 Arrangement for venting fuel injection pumps

Publications (1)

Publication Number Publication Date
DE828172C true DE828172C (en) 1952-01-17

Family

ID=7029989

Family Applications (1)

Application Number Title Priority Date Filing Date
DED2512A Expired DE828172C (en) 1941-07-22 1941-07-22 Arrangement for venting fuel injection pumps

Country Status (1)

Country Link
DE (1) DE828172C (en)

Similar Documents

Publication Publication Date Title
DE4326159C5 (en) Water-cooled multi-cylinder internal combustion engine with V-shaped rows of cylinders
DE3102905A1 (en) WATER-COOLED INTERNAL COMBUSTION ENGINE
DE3323010A1 (en) FUEL FEEDING DEVICE FOR INTERNAL COMBUSTION ENGINES
DE3704929C2 (en)
DE828172C (en) Arrangement for venting fuel injection pumps
DE1805024C2 (en) A fuel injection device for internal combustion engines consisting of an assembly consisting of an injection pump and an injection valve
DE3033177A1 (en) INTERNAL COMBUSTION ENGINE.
DE697008C (en) Fuel injection pump for internal combustion engines
DE694245C (en) Arrangement of the injection pumps of internal combustion engines
DE1501030C3 (en) Silencer arrangement for hermetically sealed refrigeration machines
CH225639A (en) Fuel injection pump.
DE2532240A1 (en) COMBUSTION MACHINE WITH PRE-COMPRESSION
DE4232783C2 (en) Cylinder head for an internal combustion engine with a pump nozzle unit
CH225637A (en) Pump with several pump tappets lying next to one another, in particular fuel injection pumps for internal combustion engines.
EP0396127B1 (en) Fuel injection apparatus
DE347725C (en) Injection nozzle for internal combustion engines
AT217245B (en) Injection pump for internal combustion engines
DE700396C (en) Internal combustion engine with four valves arranged in a square
DE489508C (en) Injection nozzle for internal combustion engines
DE8912797U1 (en) Radial piston pump
DE481760C (en) Mixture injection pump for air-compressing internal combustion engines
DE440416C (en) Stepped sealing ring for pistons in internal combustion engines and. like
CH217037A (en) Rocker arm control on combustion engines with two intake and two exhaust valves per cylinder.
DE492464C (en) Four-stroke internal combustion engine
DE869568C (en) Single-acting two-stroke internal combustion engine