EP2578868B1 - Clamping claw for a fuel injection nozzle - Google Patents

Clamping claw for a fuel injection nozzle Download PDF

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Publication number
EP2578868B1
EP2578868B1 EP12178972.1A EP12178972A EP2578868B1 EP 2578868 B1 EP2578868 B1 EP 2578868B1 EP 12178972 A EP12178972 A EP 12178972A EP 2578868 B1 EP2578868 B1 EP 2578868B1
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EP
European Patent Office
Prior art keywords
hold
down bracket
bracket according
side walls
injection nozzle
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.)
Active
Application number
EP12178972.1A
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German (de)
French (fr)
Other versions
EP2578868A1 (en
Inventor
Wolfgang Christgen
Junichi Ichikawa
Ralph Teichgräber
Jürgen Carius
Markus Wiedmann
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.)
Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication date
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Publication of EP2578868A1 publication Critical patent/EP2578868A1/en
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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
    • F02M61/14—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
    • F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
    • 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

Definitions

  • the invention relates to a hold-down for a fuel injector of an internal combustion engine, which has two upright side walls and a screw opening, wherein the side walls are present at their Endstirnen as clamping surfaces.
  • Hold-downs for fuel injection nozzles are z.ß. out US 7,334,572 B1 and GB 2 311 558 A known.
  • this object is achieved in that the hold-down, also called clamping claw, made of thin-walled steel punching-bending technology is shown, wherein the upper sides of the side walls are bridged in the section of their longitudinal center of a preferably bulged crossbar with the screw opening, so that in cross-section an inverted U Formed profile and each end is fork-like open and wherein undersides of the side walls in the open Endstirnen exist as the clamping surfaces.
  • the side walls of the blank holder according to the invention should have a completely smooth-walled, unequipped course, which is another contribution to simplifying the component.
  • the hold-down may be designed for a tension of only one injector on a cylinder head. However, it is equally provided to fix it at each of its ends depending on an injection nozzle.
  • it is hereby to present this mirror-symmetrically with respect to its longitudinal and transverse center plane.
  • it does not matter which end of the hold-down is in contact with the cylinder head and which is in engagement with the injection nozzle.
  • the hold-down device according to the present invention may also find application outside of injection / engine manufacturing, so generally in engineering or similar areas for fixing workpieces, etc.
  • a hold-down 1 for a fuel injector 10 of an internal combustion engine Is shown in Fig. 1 a hold-down 1 for a fuel injector 10 of an internal combustion engine.
  • This hold-down 1 consists of thin-walled sheet steel and is shown punching and bending technology without machining.
  • the hold-down device 1 has two upright and straight side walls 2. Their upper sides 3 are bridged in the section of their longitudinal center 4 by a cross-piece bar 5 connected in one piece with a central screw opening 6. In cross-section, there is thus an inverted U-profile in this section. It can be seen that the side walls 2 are bulged with the connecting them crossbar 5 from the top 3 away.
  • Each end 9, 12 of the hold-down 1 is open like a fork. Bottoms 7 of the side walls 2 at their Endstirnen 8 are formed as clamping surfaces. This area is additionally marked.
  • Fig. 2 At the other end 12 it lies on a support surface 11 extending from the cylinder head 14 of the internal combustion engine.
  • Fig. 3 serves the hold-down 1 at each of its ends 9, 12 in contact with an injection nozzle 10. For this he engages in a groove 13 of the respective injection nozzle 10 and is supported on the undersides of these.

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

Die Erfindung betrifft einen Niederhalter für eine Kraftstoffeinspritzdüse einer Brennkraftmaschine, der zwei aufrechte Seitenwände und eine Schraubenöffnung hat, wobei die Seitenwände bei ihren Endstirnen als Spannflächen vorliegen.The invention relates to a hold-down for a fuel injector of an internal combustion engine, which has two upright side walls and a screw opening, wherein the side walls are present at their Endstirnen as clamping surfaces.

Es sind Niederhalter für Kraftstoffeinspritzdüsen von qualitäts- oder quantitätsgesteuerten Brennkraftmaschinen vorbekannt, die urformtechnisch durch Gießen oder umformtechnisch durch Schmieden hergestellt sind. Diese haben ein zu großes Gewicht. Deren Fertigungsprozess stellt sich in Großserie als zu teuer dar und es ist eine vergleichsweise geringe Maßhaltigkeit gegeben. Zudem muss i. d. R. noch ein spanabhebender Nacharbeitsprozess erfolgen.There are known hold-down for fuel injectors of quality or quantity-controlled internal combustion engines, which are prepared by casting or forming technology by forging. These are too heavy. Their manufacturing process is in mass production as too expensive and it is given a relatively small dimensional stability. In addition, i. d. R. still a machining reworking process done.

Niederhalter für Kraftstoffeinspritzdüsen sind z.ß. aus US 7,334,572 B1 und GB 2 311 558 A bekannt.Hold-downs for fuel injection nozzles are z.ß. out US 7,334,572 B1 and GB 2 311 558 A known.

Es ist daher Aufgabe der Erfindung, einen sehr preiswerten Niederhalter zu kreieren, der hohen Belastungen standhält.It is therefore an object of the invention to create a very inexpensive hold-down that can withstand high loads.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass der Niederhalter, auch Spannpratze genannt, aus dünnwandigem Stahlblech stanz-biegetechnisch dargestellt ist, wobei Oberseiten der Seitenwände im Abschnitt ihrer Längsmitte von einem vorzugsweise ausgebauchten Querbalken mit der Schraubenöffnung überbrückt sind, so dass im Querschnitt ein umgekehrtes U-Profil gebildet und jedes Ende gabelartig offen ist und wobei Unterseiten der Seitenwände bei den offenen Endstirnen als die Spannflächen vorliegen.According to the invention, this object is achieved in that the hold-down, also called clamping claw, made of thin-walled steel punching-bending technology is shown, wherein the upper sides of the side walls are bridged in the section of their longitudinal center of a preferably bulged crossbar with the screw opening, so that in cross-section an inverted U Formed profile and each end is fork-like open and wherein undersides of the side walls in the open Endstirnen exist as the clamping surfaces.

Somit ist ein sehr einfach hinsichtlich seiner Geometrie gestalteter Niederhalter ohne die vorgenannten Nachteile geschaffen. Als Stahlblech kommt bspw. ein Einsatzstahl infrage, der einsatzgehärtet / carbonitriert und anschließend angelassen ist. Der Niederhalter hat trotz dessen Dünnwandigkeit eine hervorragende Steifigkeit. Hervorzuheben ist die gute Maßhaltigkeit, so dass auf eine spanende oder andere Nachbearbeitung in der Regel verzichtet werden kann. Dabei ist, s. a. nachfolgende Erläuterungen, unter "Spannfläche" nach dem Anspruch 1 auch diejenige Fläche zu verstehen, welche bei der Variante mit lediglich einer einzuspannenden Einspritzdüse als Auflagefläche gegenüber dem Zylinderkopf oder einem mit dem Zylinderkopf verbundenen Bauteil fungiert.Thus, a very simple in terms of its geometry designed hold-down without the aforementioned disadvantages is created. As a steel sheet is, for example, a case steel in question, the case hardened / carbonitrided and then tempered. The hold-down has excellent rigidity despite its thinness. To emphasize is the good dimensional accuracy, so that can be dispensed with a chipping or other post-processing in the rule. It is, sa following explanations, under "clamping surface" after the Claim 1 to understand that surface, which acts as a support surface relative to the cylinder head or a component connected to the cylinder head in the variant with only one injection nozzle to be clamped.

Die Seitenwände des erfindungsgemäßen Niederhalters sollen einen komplett glattwandigen, ungekröpften Verlauf haben, was ein weiterer Beitrag zur Bauteilvereinfachung ist.The side walls of the blank holder according to the invention should have a completely smooth-walled, unequipped course, which is another contribution to simplifying the component.

Gemäß einer weiteren Konkretisierung der Erfindung ist es vorgesehen, die Schraubenöffnung zu stanzen. Dies soll während des eigentlichen Stanz-Biegeprozesses des Niederhalters aus einer Platine / einem Blechband mit realisiert werden. Ein Umgebungsbereich der Schraubenöffnung ist vorteilhafterweise mit einer vergleichsweise geringen Rauheit (≤ Ra 3,2) ausgebildet, so dass hierbei im Einbau die Kerbfaktoren minimiert sind.According to a further concretization of the invention, it is provided to punch the screw opening. This should be realized during the actual punching-bending process of the blank holder from a board / a metal strip with. A surrounding area of the screw opening is advantageously formed with a comparatively small roughness (≦ R a 3,2), so that in this case the notch factors are minimized during installation.

In Fortbildung der Erfindung ist es vorgeschlagen, einen Bereich der Seitenwände bei den Spannflächen zusätzlich anzuprägen. Somit ist in diesem wichtigen Funktionsbereich eine gute Maßhaltigkeit und hohe Oberflächengüte gegeben.In a further development of the invention, it is proposed to additionally impress a region of the side walls in the clamping surfaces. Thus, a good dimensional stability and high surface quality is given in this important functional area.

Der Niederhalter kann für eine Verspannung lediglich einer Einspritzdüse auf einem Zylinderkopf ausgelegt sein. Es ist jedoch gleichermaßen vorgesehen, hierüber an jedem seiner Enden je eine Einspritzdüse zu fixieren. Vorteilhaft bspw. hinsichtlich eines Handlings und einer Montage des vorschlagsgemäßen Niederhalters ist es hierbei, diesen in Bezug auf seine Längs- und Quermittelebene spiegelsymmetrisch darzustellen. Somit spielt es bspw. bei der Variante zur Verspannung lediglich einer Einspritzdüse keine Rolle, welches Ende des Niederhalters in Kontakt mit dem Zylinderkopf und welches in Eingriff mit der Einspritzdüse ist.The hold-down may be designed for a tension of only one injector on a cylinder head. However, it is equally provided to fix it at each of its ends depending on an injection nozzle. Advantageously, for example, in terms of handling and assembly of the proposed hold-down, it is hereby to present this mirror-symmetrically with respect to its longitudinal and transverse center plane. Thus, for example, in the variant for tensioning only one injection nozzle, it does not matter which end of the hold-down is in contact with the cylinder head and which is in engagement with the injection nozzle.

Der Niederhalter gemäß der vorliegenden Erfindung kann auch Anwendung außerhalb der Einspritztechnik / des Motorenbaus, so allgemein im Maschinenbau oder ähnlichen Bereichen zur Fixierung von Werkstücken etc. finden.The hold-down device according to the present invention may also find application outside of injection / engine manufacturing, so generally in engineering or similar areas for fixing workpieces, etc.

Zur Zeichnung:

  • Fig. 1 offenbart eine räumliche Ansicht eines Niederhalters für eine Kraftstoffeinspritzdüse;
  • Fig. 2 zeigt eine schematische Einbauansicht des Niederhalters in Eingriff mit einer Einspritzdüse und aus
  • Fig. 3 geht eine Ansicht wie vorgenannt hervor, bei welcher der Niederhalter jedoch auf zwei Einspritzdüsen agiert.
To the drawing:
  • Fig. 1 discloses a three-dimensional view of a hold-down for a fuel injector;
  • Fig. 2 shows a schematic installation view of the blank holder in engagement with an injection nozzle and off
  • Fig. 3 goes a view as above, however, in which the hold-down acts on two injectors.

Dargestellt ist in Fig. 1 ein Niederhalter 1 für eine Kraftstoffeinspritzdüse 10 einer Brennkraftmaschine. Dieser Niederhalter 1 besteht aus dünnwandigem Stahlblech und ist stanz-biegetechnisch ohne spanende Nachbearbeitung dargestellt.Is shown in Fig. 1 a hold-down 1 for a fuel injector 10 of an internal combustion engine. This hold-down 1 consists of thin-walled sheet steel and is shown punching and bending technology without machining.

Der Niederhalter 1 hat zwei aufrechte und gerade verlaufende Seitenwände 2. Deren Oberseiten 3 sind im Abschnitt ihrer Längsmitte 4 von einem einteilig angebundenen Querbalken 5 mit einer mittigen Schraubenöffnung 6 überbrückt. Im Querschnitt liegt in diesem Abschnitt somit ein umgekehrtes U-Profil vor. Zu erkennen ist, dass die Seitenwände 2 mit dem diese verbindenden Querbalken 5 von der Oberseite 3 weg ausgebaucht sind.The hold-down device 1 has two upright and straight side walls 2. Their upper sides 3 are bridged in the section of their longitudinal center 4 by a cross-piece bar 5 connected in one piece with a central screw opening 6. In cross-section, there is thus an inverted U-profile in this section. It can be seen that the side walls 2 are bulged with the connecting them crossbar 5 from the top 3 away.

Jedes Ende 9, 12 des Niederhalters 1 ist gabelartig offen. Unterseiten 7 der Seitenwände 2 bei ihren Endstirnen 8 sind als Spannflächen ausgebildet. Dieser Bereich ist zusätzlich geprägt.Each end 9, 12 of the hold-down 1 is open like a fork. Bottoms 7 of the side walls 2 at their Endstirnen 8 are formed as clamping surfaces. This area is additionally marked.

Gemäß Fig. 2 ist der Niederhalter 1 an dem einen Ende 9 in Kontakt mit der Einspritzdüse 10. An seinem anderen Ende 12 liegt er auf einer vom Zylinderkopf 14 der Brennkraftmaschine ausgehenden Abstützfläche 11.According to Fig. 2 At the other end 12 it lies on a support surface 11 extending from the cylinder head 14 of the internal combustion engine.

Gemäß Fig. 3 dient der Niederhalter 1 an jedem seiner Enden 9, 12 einem Kontakt mit einer Einspritzdüse 10. Hierfür greift er in eine Nut 13 der jeweiligen Einspritzdüse 10 und stützt sich auf Unterseiten dieser ab.According to Fig. 3 serves the hold-down 1 at each of its ends 9, 12 in contact with an injection nozzle 10. For this he engages in a groove 13 of the respective injection nozzle 10 and is supported on the undersides of these.

Zudem geht aus den Fig. 2, 3 hervor, dass der Niederhalter 1 über ein in seiner Schraubenöffnung 6 sitzendes Schraubmittel 15 entsprechend mit dem Zylinderkopf 14 verbunden ist. Somit bringt das Schraubmittel 15 die notwendige Niederhaltekraft auf.In addition, goes from the Fig. 2, 3rd shows that the hold-down 1 is connected via a seated in its screw opening 6 screw 15 corresponding to the cylinder head 14. Thus, the screw means 15 brings the necessary hold-down force.

Liste der BezugszahlenList of reference numbers

  1. 1) Niederhalter1) Downholder
  2. 2) Seitenwand2) side wall
  3. 3) Oberseite3) top
  4. 4) Längsmitte4) Longitudinal center
  5. 5) Querbalken5) Crossbeams
  6. 6) Schraubenöffnung6) Screw opening
  7. 7) Unterseite, Spannfläche7) underside, clamping surface
  8. 8) Endstirn8) Endstirn
  9. 9) eines Ende9) one end
  10. 10)Kraftstoffeinspritzdüse10) fuel injection nozzle
  11. 11)Abstützfläche11) support surface
  12. 12)anderes Ende12) other end
  13. 13)Nut13) groove
  14. 14)Zylinderkopf14) cylinder head
  15. 15)Schraubmittel15) screw

Claims (10)

  1. Hold-down bracket (1) for a fuel injection nozzle of an internal combustion engine, said hold-down bracket being formed from thin-walled sheet steel by punching and bending processes and having two upright side walls (2), the top sides (3) of which are, in the region of their longitudinal centre (4), bridged by a transverse beam (5) with a screw opening (6) such that an upturned U-shaped profile is realized in cross section and each end (9, 12) is provided in open form in a fork-like manner, and wherein undersides (7) of the side walls (2) are provided, at their end faces (8), as clamping surfaces.
  2. Hold-down bracket according to Claim 1, wherein no cutting reworking processes are performed on the hold-down bracket (1).
  3. Hold-down bracket according to Claim 1, wherein the side walls (2) have a continuously uniform thickness and extend longitudinally in substantially beam-like, non-cranked form.
  4. Hold-down bracket according to Claim 1, wherein the side walls (2), with the transverse beam (5) connecting them, are bulged away from the top side (3).
  5. Hold-down bracket according to Claim 1, wherein a region of the side walls (2) at the clamping surfaces (7) is embossed.
  6. Hold-down bracket according to Claim 1, wherein the screw opening (6) is situated centrally in the transverse beam (5) and is formed by punching.
  7. Hold-down bracket according to Claim 1, wherein the hold-down bracket (1) is mirror-symmetrical with respect to its longitudinal and transverse central planes.
  8. Hold-down bracket according to Claim 1, wherein the hold-down bracket (1) is provided, at both ends (9, 12), for contact with an injection nozzle (10).
  9. Hold-down bracket according to Claim 1, wherein the hold-down bracket (1) is provided, at one end (9), for contact with an injection nozzle (10), and, at the other end (12), for contact with a support surface (11) extending from the cylinder head (14) of the internal combustion engine.
  10. Hold-down bracket according to Claim 1 or 6, wherein a region surrounding the screw opening (6) has a considerably lower surface roughness than the remaining region of the hold-down bracket.
EP12178972.1A 2011-10-06 2012-08-02 Clamping claw for a fuel injection nozzle Active EP2578868B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110084064 DE102011084064A1 (en) 2011-10-06 2011-10-06 Downholder for a fuel injector

Publications (2)

Publication Number Publication Date
EP2578868A1 EP2578868A1 (en) 2013-04-10
EP2578868B1 true EP2578868B1 (en) 2014-02-12

Family

ID=46614366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12178972.1A Active EP2578868B1 (en) 2011-10-06 2012-08-02 Clamping claw for a fuel injection nozzle

Country Status (4)

Country Link
EP (1) EP2578868B1 (en)
JP (1) JP2013083258A (en)
CN (1) CN103032231B (en)
DE (1) DE102011084064A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020102991A1 (en) 2020-02-06 2021-08-12 Schaeffler Technologies AG & Co. KG Hold-down device for two fuel injection nozzles of an internal combustion engine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5929938B2 (en) * 2014-01-30 2016-06-08 株式会社豊田自動織機 Injector fixing structure
US20160025056A1 (en) * 2014-07-22 2016-01-28 Ford Global Technologies, Llc Diesel fuel injector clamp
CN106670255B (en) * 2016-12-10 2018-03-09 浙江黎明发动机零部件有限公司 A kind of fuel injector punching type fixed plate and its processing method and assembly tooling
IT201900005704A1 (en) * 2019-04-12 2020-10-12 A G Porta S P A Process for manufacturing metal components, in particular components for motor vehicles, such as forks for gearboxes and support brackets for internal combustion engine injectors, starting from a single piece of sheet metal

Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0751290A1 (en) * 1995-06-26 1997-01-02 Isuzu Motors Limited Fuel injection nozzle clamping structure
GB2311558A (en) * 1996-03-28 1997-10-01 Stanadyne Automotive Corp Fuel injection nozzle with compressive radial pre-loading

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AT369142B (en) * 1980-05-09 1982-12-10 Friedmann & Maier Ag DEVICE FOR CLAMPING A NOZZLE HOLDER AGAINST THE CYLINDER HEAD OF AN INJECTION INTERNAL COMBUSTION ENGINE
GB8516236D0 (en) * 1985-06-27 1985-07-31 Lucas Ind Plc Clamping device
JP3473725B2 (en) * 1995-11-24 2003-12-08 日野自動車株式会社 Unit injector mounting structure for diesel engine
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JP2877117B2 (en) * 1996-12-13 1999-03-31 いすゞ自動車株式会社 Direct injection multi-cylinder engine
JP2000145580A (en) * 1998-11-11 2000-05-26 Isuzu Motors Ltd Fixing structure of injector
DE10109408A1 (en) * 2001-02-28 2002-09-05 Bosch Gmbh Robert fastening device
DE10125440A1 (en) * 2001-05-25 2002-11-28 Bosch Gmbh Robert Fastening device of an injector of a fuel injection device on an internal combustion engine
US7334572B1 (en) * 2007-01-30 2008-02-26 Ford Global Technologies, Llc System and method for securing fuel injectors
US20130174810A1 (en) * 2010-10-20 2013-07-11 Illinois Tool Works Inc. Fuel injector bracket assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0751290A1 (en) * 1995-06-26 1997-01-02 Isuzu Motors Limited Fuel injection nozzle clamping structure
GB2311558A (en) * 1996-03-28 1997-10-01 Stanadyne Automotive Corp Fuel injection nozzle with compressive radial pre-loading

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020102991A1 (en) 2020-02-06 2021-08-12 Schaeffler Technologies AG & Co. KG Hold-down device for two fuel injection nozzles of an internal combustion engine

Also Published As

Publication number Publication date
CN103032231A (en) 2013-04-10
DE102011084064A1 (en) 2013-04-11
JP2013083258A (en) 2013-05-09
CN103032231B (en) 2017-12-15
EP2578868A1 (en) 2013-04-10

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