DE1933413A1 - Process for discharging leak fuel from the injection nozzle in heavy fuel engines and device for carrying out the process - Google Patents

Process for discharging leak fuel from the injection nozzle in heavy fuel engines and device for carrying out the process

Info

Publication number
DE1933413A1
DE1933413A1 DE19691933413 DE1933413A DE1933413A1 DE 1933413 A1 DE1933413 A1 DE 1933413A1 DE 19691933413 DE19691933413 DE 19691933413 DE 1933413 A DE1933413 A DE 1933413A DE 1933413 A1 DE1933413 A1 DE 1933413A1
Authority
DE
Germany
Prior art keywords
injection nozzle
fuel
channel
carrying
leak fuel
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.)
Granted
Application number
DE19691933413
Other languages
German (de)
Other versions
DE1933413C3 (en
DE1933413B2 (en
Inventor
Dusan Valasek
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.)
Tatra np
Original Assignee
Tatra np
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 Tatra np filed Critical Tatra np
Publication of DE1933413A1 publication Critical patent/DE1933413A1/en
Publication of DE1933413B2 publication Critical patent/DE1933413B2/en
Application granted granted Critical
Publication of DE1933413C3 publication Critical patent/DE1933413C3/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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M55/002—Arrangement of leakage or drain conduits in or from 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/803—Fuel injection apparatus manufacture, repair or assembly using clamp elements and fastening means; e.g. bolts or screws
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/855—Mounting of fuel injection apparatus using clamp elements or fastening means, e.g. bolts or screws
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa

Landscapes

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

Description

Wpl.-lng.R.Beetzu. 233-14.720P(14.72IH) I.7.1969Wpl.-lng.R.Beetzu. 233-14.720P (14.72IH) I.7.1969 Dipl.-Ing. LismprechtDipl.-Ing. Lismprecht München 22, Stelnsdorfsif. 10Munich 22, Stelnsdorfsif. 10

TATRA , narodni podnik, Kqp£ivnice (Tschechoslowakei)TATRA, narodni podnik, Kqp £ ivnice (Czechoslovakia)

Verfahren zur Abführung von Leckkraftstoff aus der Einspritzdüse in Schwerölmotoren und Vorrichtung zur Durchführung des VerfahrensMethod for discharging leak fuel from the injection nozzle in heavy oil engines and the device for carrying out the process

Die Erfindung betrifft ein Verfahren zur Abführung von Leckkraftstoff aus der Einspritzdüse von mit Schweröl betriebenen Brennkraftmaschinen· Die Erfindung betrifft auch eine' Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for discharging leak fuel from the injection nozzle with heavy oil operated internal combustion engines · The invention also relates to a 'device for performing the method.

In den im Deckelraum des Zylinderkopfes angeordneten Einspritzventilen von mit Schweröl betriebenen Brennkraftmaschinen sammeln eich Leckkraftstoffe, die durch die Undichtheit der Einspritzdüse in deren Halter eindringen· Diese Leckkraft·toff· müssen aus dem Raum des Zylinderkopfe β herausgeführt werden«, Dies erfolgt entweder durch •In selbsfeStacgigee Rohrsystemt od©g· dies® LeekJsraftstofjT® ±ii Aas S©1m31®s"B1 ©des* iss stem Ssugkiasal Ijerausge» ■ In the injection valves of internal combustion engines operated with heavy fuel oil, which are arranged in the cover space of the cylinder head, leak fuel which penetrates into the holder due to the leakage of the injection nozzle · This leak fuel · must be led out of the space of the cylinder head β « self-supporting pipe system t od © g · dies® LeekJsraftstofjT® ± ii Aas S © 1m31®s "B1 © des * iss stem Ssugkiasal Ijerausge» ■

ORIGINAL "i«oPäGT£DORIGINAL "i" oPäGT £ D

Diese Ausführungen sind mit einer Anzahl von Nachteilen behaftet, die sich entweder durch schlechte Zugänglichkeit bei der Montage der Vorrichtung oder durch Kompliziertheit äußern. Andere Lösungen führen zu einer hohen ,Viskosität des Schmieröls, zur Karbonisierung, zum Abbrennen der Ventile und weiteren Schwierigkeiten, welche die Lebensdauer der Motoren herabsetzen·These designs suffer from a number of disadvantages afflicted, either by poor accessibility during assembly of the device or by complexity to express. Other solutions lead to a high viscosity of the lubricating oil, to carbonization, to burning of the valves and other difficulties which the Reduce the service life of the motors

Zweck der Erfindung ist es, diese Nachteile zu beseitigen· Das Wesen des erfindungsgemäßen Verfahrens besteht darin, daß man den Leckkraftstoff aus einem Samme1raum im Körper des Einspritzventils abführt, und zwar durch einen Bügel, welcher den Körper der Einspritzdüse im Sattel des Zylinderkopfes sichert und befestigteThe purpose of the invention is to eliminate these disadvantages The essence of the method according to the invention is that the leak fuel from a Samme1raum in Body of the injector discharges, through a bracket, which the body of the injector in the saddle of the The cylinder head is secured and fastened

Die Vorrichtung zur Durchführung des Verfahrens ist dadurch gekennzeichnet, daß der Körper des Einspritzventils an seinem unteren Ende mit einer Einspritzdüse und an seinem oberen Ende mit einem Sattel in der Form einer halbkugelförmigen Vertiefung für das Aufliegen eines Vorsprunges eines Befestigungsbügels und mit einem Sammelraum ausgerüstet ist, aus dem ein Kanal herausmündet, der als gleichachsiger, senkrechter Verbindungskanal fortgesetzt ist, welcher im Vorsprung des Bügels angeordnet und an einen waagrechten Kanal angeschlossen ist, der an seinen beiden Enden in Verbindungsrohre mündet·The device for carrying out the method is characterized in that the body of the injection valve at its lower end with an injection nozzle and at its upper end with a saddle in the shape of a hemispherical recess for the resting of a projection of a mounting bracket and with a collecting space is equipped, from which a channel opens out, which continues as an equiaxed, vertical connecting channel is, which is arranged in the projection of the bracket and connected to a horizontal channel that is attached to his ends in connecting pipes

Der Vorteil dieser Ausführung besteht darin, daß alle Ableitungskanäle und Rohre leicht zugänglich sind, so daß sie leicht gereinigt werden können· Die Vorrichtung ist außerdem leicht herstellbar und. ihre Montage ist sehr leicht.The advantage of this design is that all Drainage channels and pipes are easily accessible so that they can be easily cleaned · The device is also easy to manufacture and. their assembly is very easy.

Die Erfindung soll sit Hilf« der beiliegenden, einThe invention is intended to assist with the enclosed

darstellenden Zeichnung »Eher erklär*illustrative drawing »Rather explain *

ORIGINAL INSPECTEDORIGINAL INSPECTED

Fig. 1 zeigt ein Ausführungsbeispiel der Erfindung, teilweise geschnitten,Fig. 1 shows an embodiment of the invention, partially cut,

Fig. 2 eine Seitenansicht, teilweise nach der Linie A-A geschnitten.Fig. 2 is a side view, partially sectioned along the line A-A.

Die Vorrichtung gemäß Fig. 1 und 2 besteht im wesentlichen aus einem ZuIeitungsrohr 1 für den Kraftstoff, welches an den Körper 2 des Einspritzventils angeschlossen ist. Das Einspritzventil ist an seinem unteren Ende durch eine Einspritzdüse 3 abgeschlossene Im Körper 2 ist axial über der Düse ein Zylinderraum 4 ausgebildet, zu dem von oben ein Zuleitungskanal 5 führt. Im Oberteil des Körpers 2 des Einspritzventils ist ein Sattel 6 vorgesehen, der die Form einer halbkugelförmigen Vertiefung besitzt. In diese Vertiefung erstreckt sich ein Teil eines Bügels 7» welcher zur Befestigung und Sicherung des Körpers 2 des Einspritzventils dient» Im Bügel 7 ist ein senkrechter Kanal 8 ausgeführt, der mit dem Zuleitungskanal 5 fluchtet und an einem waagrechten Kanal 9 angeschlossen ist» Dieser letztere Kanal 9 mündet an seinen beiden Enden in Verbindungsrohre 10, 10', Diese Rohre 10, 10' sind auf die entsprechenden abgestuften Enden des Bügels 7 aufgesetzt und verbinden die Bügel der einzelnen Zylinderköpfe mit einem Sammel- oder Abfangbehältero The device according to FIGS. 1 and 2 essentially consists of a supply pipe 1 for the fuel, which is connected to the body 2 of the injection valve. The injection valve is closed off at its lower end by an injection nozzle 3. In the body 2, a cylinder chamber 4 is formed axially above the nozzle, to which a feed channel 5 leads from above. In the upper part of the body 2 of the injection valve, a saddle 6 is provided which has the shape of a hemispherical recess. A part of a bracket 7 »which is used to fasten and secure the body 2 of the injection valve» extends into this recess »In the bracket 7 there is a vertical channel 8 which is aligned with the supply channel 5 and is connected to a horizontal channel 9» This latter channel 9 opens at its two ends in the connecting pipes 10, 10 ', these pipes 10, 10' of the bracket 7 are placed on the respective stepped ends and connect the temples of the individual cylinder heads with a collecting or Abfangbehälter o

Der Körper 2 des Einspritzventils liegt unten auf dem Sattel 11 des Zylinderkopfes 12 auf und wird von oben durch den erwähnten Bügel 7 aufgedrückt. Der Bügel 7 ist durch Ankerschrauben 13» 13' angezogen und stützt sich mit seinem Vorsprung 14 auf den kugelförmigen Sattel 6 des Körpers 2 des Einspritzventils.The body 2 of the injection valve rests on the saddle 11 of the cylinder head 12 and is from above pressed by the bracket 7 mentioned. The bracket 7 is tightened by anchor bolts 13 »13 'and is supported with its projection 14 on the spherical saddle 6 of the body 2 of the injector.

Die beschriebene Vorrichtung wirkt folgendermaßen:The device described works as follows:

009887/0782009887/0782

Der Kraftstoff wird von der Einspritzpumpe durch das Zuleitungsrohr 1 in den Körper 2 des Einspritzventils und zur Einspritzdüse 3 geführt. Der Leckkraftstoff, welcher durch die Undichtheit der Einspritzdüse in den Raum 4 des Körpers 2 des Einspritzventils eindringt, wird durch den Kanal 5 und durch den Kanal 8 im Vorsprung 1k und von dort durch den Kanal 9 in die Ableitungsrohre 10, 10' weggeführt.The fuel is fed from the injection pump through the feed pipe 1 into the body 2 of the injection valve and to the injection nozzle 3. The leak fuel, which penetrates into the space 4 of the body 2 of the injection valve due to the leakage of the injection nozzle, is carried away through the channel 5 and through the channel 8 in the projection 1k and from there through the channel 9 into the discharge pipes 10, 10 '.

Durch Ableitungsrohre, die an den Bügeln der einzelnen Zylinderköpfe befestigt sind, strömt dann der Leckkraftstoff in den Kraftstoffbehälter ab«The leak fuel then flows through discharge pipes that are attached to the brackets of the individual cylinder heads into the fuel tank from «

00 9 8 87/078200 9 8 87/0782

Claims (2)

PatentansprücheClaims I 1.J Verfahren zur Abführung von Leckkraftstoff der Einspritzdüse in Schwerölmotoren, dadurch gekennzeichnet , daß, man den Leckkraftstoff aus einem Sammelraum im Körper des EinspritzventilS abführt. I 1. J method for discharging leak fuel from the injection nozzle in heavy oil engines, characterized in that the leak fuel is discharged from a collecting space in the body of the injection valve. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 19 dadurch gekennzeichnet, daß der Körper (2) des Einspritzventils an seinem unteren Ende mit dher Einspritzdüse (3) und an seinem oberen Ende mit einem Sattel (6) in der Form einer halbkugelförmigen Vertiefung für das Aufliegen eines Vorsprunges (i4) eines Befestigungsbügels (7) und mit einem Sammelraum (k) ausgerüstet ist, aus dem ein Kanal (5) herausmündet, der als gleichachsiger, senkrechter Verbindungskanal. (8) fortgesetzt ist, welcher im Vorsprung (14) des Bügels (7) angeordnet und an einen waagrechten Kanal (p) angeschlossen ist, der an seinen beiden Enden in VerbinpUmgsrohre (1Ö, 10f) det. '■ 2. Apparatus for performing the method according to claim 1 9, characterized in that the body (2) of the injection valve at its lower end with dher injection nozzle (3) and at its upper end with a saddle (6) in the form of a hemispherical recess for the resting of a projection (i4) of a mounting bracket (7) and is equipped with a collecting space (k) from which a channel (5) opens out as an equiaxed, vertical connecting channel. (8), which is arranged in the projection (14) of the bracket (7) and is connected to a horizontal channel (p) , which detects at both ends in connecting tubes (10, 10 f ) . '■ LeerseiteBlank page
DE19691933413 1968-07-02 1969-07-01 Fuel injector for internal combustion engines Expired DE1933413C3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS486468 1968-07-02

Publications (3)

Publication Number Publication Date
DE1933413A1 true DE1933413A1 (en) 1971-02-11
DE1933413B2 DE1933413B2 (en) 1973-06-14
DE1933413C3 DE1933413C3 (en) 1974-01-03

Family

ID=5392325

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691933413 Expired DE1933413C3 (en) 1968-07-02 1969-07-01 Fuel injector for internal combustion engines

Country Status (4)

Country Link
AT (1) AT293792B (en)
BE (1) BE735226A (en)
DE (1) DE1933413C3 (en)
FR (1) FR2012144A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1985841A1 (en) * 2007-04-27 2008-10-29 Continental Automotive GmbH Fluid inlet arrangement for an injection valve and injection valve

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4318434A1 (en) * 1993-06-03 1994-12-08 Opel Adam Ag Holding device for a fuel injection valve of a diesel engine
ES2116003T3 (en) * 1994-03-12 1998-07-01 Opel Adam Ag DIESEL ENGINE CYLINDER HEAD ASSEMBLY WITH A RETENTION DEVICE FOR A FUEL INJECTION VALVE AS WELL AS A HOLDING DEVICE FOR AN INDIVIDUAL INJECTION PUMP ACTING ON THIS FUEL VALVE.
FR2763379B1 (en) * 1997-05-16 1999-07-16 Renault INJECTOR FIXING FLANGE
IT1306311B1 (en) * 1998-07-01 2001-06-04 Magneti Marelli Spa COUPLING SYSTEM BETWEEN ENGINE HEAD, INJECTOR AND FUEL COLLECTOR.
DE602006002803D1 (en) * 2006-02-08 2008-10-30 Siemens Ag Connecting arrangement for connecting an injector with a fluid supply
DE102006033927A1 (en) 2006-07-21 2008-01-24 Robert Bosch Gmbh fuel injector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1985841A1 (en) * 2007-04-27 2008-10-29 Continental Automotive GmbH Fluid inlet arrangement for an injection valve and injection valve

Also Published As

Publication number Publication date
AT293792B (en) 1971-10-25
BE735226A (en) 1969-12-01
DE1933413C3 (en) 1974-01-03
DE1933413B2 (en) 1973-06-14
FR2012144A1 (en) 1970-03-13

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee