EP1283330B1 - Adapter for a high pressure injection pump for a direct injection piston combustion engine - Google Patents

Adapter for a high pressure injection pump for a direct injection piston combustion engine Download PDF

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Publication number
EP1283330B1
EP1283330B1 EP01116173A EP01116173A EP1283330B1 EP 1283330 B1 EP1283330 B1 EP 1283330B1 EP 01116173 A EP01116173 A EP 01116173A EP 01116173 A EP01116173 A EP 01116173A EP 1283330 B1 EP1283330 B1 EP 1283330B1
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EP
European Patent Office
Prior art keywords
fuel injection
pressure fuel
injection pump
high pressure
combustion engine
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 - Lifetime
Application number
EP01116173A
Other languages
German (de)
French (fr)
Other versions
EP1283330A1 (en
Inventor
Hans Reincke
Gunnar Gangel, Jr.
Guido Bingen
Detlev Kunde
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.)
Ford Global Technologies LLC
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Ford Global Technologies LLC
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 Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to DE50108089T priority Critical patent/DE50108089D1/en
Priority to EP01116173A priority patent/EP1283330B1/en
Priority to US10/064,200 priority patent/US6523518B2/en
Publication of EP1283330A1 publication Critical patent/EP1283330A1/en
Application granted granted Critical
Publication of EP1283330B1 publication Critical patent/EP1283330B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • 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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • 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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives

Definitions

  • the invention relates to a system for attachment of High-pressure fuel injection pumps on cylinder heads of reciprocating internal combustion engines.
  • This is a one-cylinder high-pressure fuel injection pump actuated by at least two additional cams, located at the end of an im Cylinder head running and for controlling the gas exchange valves responsible camshaft. These cams in turn actuate one Tappet, which in turn drives a high-pressure fuel injection pump, which is here connected directly to the cylinder head frictionally.
  • the receiving bore for the tappets required for operation the high-pressure fuel injection pump additional processing steps of already very expensive to manufacture cylinder head. Should z. B. from an already produced in series reciprocating internal combustion engine without High-pressure fuel injection pump additionally a variant with High-pressure fuel injection pump will be manufactured for the manufacturer Part complexity increased.
  • the Attachment of a high-pressure fuel injection pump to a cylinder head a reciprocating internal combustion engine to improve such that a Enlargement of the cylinder head is not necessary.
  • no should additional machining of the cylinder head may be required, as well as the simple Retrofittability of an already in production Reciprocating internal combustion engine with a high-pressure fuel injection pump be guaranteed.
  • the holder for attachment of High-pressure fuel injection pumps is designed so that it includes a camshaft bearing bridge.
  • the existing Drill holes originally only for mounting a camshaft bearing bridge are intended to be used here for attachment of the holder according to the invention. Therefore, compared to a cylinder head variant without High-pressure fuel injection pump no additional processing steps on Cylinder head needed. To ensure sufficient stability of the holder ensure, however, is still a third mounting or Auflagerdazzling necessary.
  • two or more Camshaft bearing bridges through the bracket for fastening High-pressure fuel injection pumps replaced. This is a particularly easy too realizing variant that is not constructive or production-related Require changes to the cylinder head of a reciprocating internal combustion engine.
  • the prior art is high-pressure fuel injection pumps by means of or to drive several located on a shaft cam.
  • This Tappet is usually designed as a bucket tappets, as the tappets Operation can absorb arising side forces.
  • the ram then drives turn on the high-pressure fuel injection pump.
  • the present invention has the holder for attachment of high-pressure fuel injection pumps additionally one or a plurality of bores for receiving at least one plunger Camshaft bearing bridges as holding for aggregates can serve are known per se (US-A-4 913 105 , EP-A-0 353 988)
  • the above-mentioned plunger from a cam already present for driving the gas exchange valves the camshaft actuated has the advantage that no additional components, no additional space and no additional processing steps in the Comparison to a variant without the holder according to the invention for attachment required by high-pressure fuel injection pumps.
  • the use of two or more cams is like that possible to increase the drive frequency of High-pressure fuel injection pump and thus to increase the Kraftstofcharacter oriental.
  • the holder is dimensioned so that the space is bridged up to a cylinder head cover.
  • the high-pressure injection pump on the outside of a Hubkolbenbrennkraftmaschine be flanged. This allows a simple Assembly of the high-pressure injection pump and the associated fuel and Electrical connections.
  • Figure 1 is a erfihdungssieer holder 1 for attachment of High-pressure fuel injection pumps 7 in a perspective view shown. Other adjacent parts are in the manner of an explosion drawing added. Evident are a camshaft 2, a plurality of cams 3 for Actuation of gas exchange valves, an additional cam 5 for actuation a running in a hole 9 tappet 4 and a section a cylinder head cover 6 with sealing plate 10 and seal 11 and a High-pressure fuel injection pump 7.

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

Description

Die Erfindung bezieht sich auf ein System zur Befestigung von Kraftstoffhochdruckeinspritzpumpen an Zylinderköpfen von Hubkolbenbrennkraftmaschinen.The invention relates to a system for attachment of High-pressure fuel injection pumps on cylinder heads of reciprocating internal combustion engines.

Einzylindrige Kraftstoffhochdruckeinspritzpumpen, die an Zylinderköpfen von Hubkolbenbrennkraftmaschinen befestigt sind, sind bekannt z. B. aus der DE 198 57 555. Dabei wird eine einzylindrige Kraftstoffhochdruckeinspritzpumpe von mindestens zwei zusätzlichen Nocken betätigt, die sich am Ende einer im Zylinderkopf laufenden und für die Steuerung der Gaswechselventile zuständigen Nockenwelle befinden. Diese Nocken wiederum betätigen einen Tassenstößel, der wiederum eine Kraftstoffhochdruckeinspritzpumpe antreibt, die hier direkt mit dem Zylinderkopf kraftschlüssig verbunden ist.Single-cylinder high-pressure fuel injection pumps connected to cylinder heads of Reciprocating internal combustion engines are fixed, are known z. B. from DE 198 57 555. This is a one-cylinder high-pressure fuel injection pump actuated by at least two additional cams, located at the end of an im Cylinder head running and for controlling the gas exchange valves responsible camshaft. These cams in turn actuate one Tappet, which in turn drives a high-pressure fuel injection pump, which is here connected directly to the cylinder head frictionally.

Diese oben beschriebene Anordnung weist mehrere Nachteile auf. Zum einen ist wegen der Anordnung der Antriebsnocken für die Kraftstoffhochdruckeinspritzpumpe am Ende der bestehenden Nockenwelle eine Vergrößerung des Zylinderkopfes nötig. Dies ist insbesondere bei im Kraftfahrzeug quereingebauten Hubkolbenbrennkraftmaschinen häufig aus Platzgründen schwer zu realisieren.This arrangement described above has several disadvantages. For one thing is because of the arrangement of the drive cam for the High-pressure fuel injection pump at the end of existing camshaft one Enlargement of the cylinder head necessary. This is especially true in the Motor vehicle transversely mounted reciprocating internal combustion engines often off Space reasons difficult to realize.

Zum anderen erfordert die Aufnahmebohrung für den Tassenstößel zum Betrieb der Kraftstoffhochdruckeinspritzpumpe zusätzliche Bearbeitungsschritte des ohnehin schon sehr aufwendig zu fertigenden Zylinderkopfes. Soll z. B. von einer schon in Serie produzierten Hubkolbenbrennkraftmaschine ohne Kraftstoffhochdruckeinspritzpumpe zusätzlich eine Variante mit Kraftstoffhochdruckeinspritzpumpe gefertigt werden, wird für den Hersteller die Teilekomplexität erhöht.On the other hand, the receiving bore for the tappets required for operation the high-pressure fuel injection pump additional processing steps of already very expensive to manufacture cylinder head. Should z. B. from an already produced in series reciprocating internal combustion engine without High-pressure fuel injection pump additionally a variant with High-pressure fuel injection pump will be manufactured for the manufacturer Part complexity increased.

Vor diesem Hintergrund ist es die Aufgabe der vorliegenden Erfindung, die Befestigung einer Kraftstoffhochdruckeinspritzpumpe an einem Zylinderkopf einer Hubkolbenbrennkraftmaschine derart zu verbessern, daß eine Vergrößerung des Zylinderkopfes nicht notwendig ist. Außerdem soll keine zusätzliche Bearbeitung des Zylinderkopfes erforderlich sein, sowie die einfache Nachrüstbarkeit einer bereits in Produktionbefindlichen Hubkolbenbrennkraftmaschine mit einer Kraftstoffhochdruckeinspritzpumpe gewährleistet werden.Against this background, it is the object of the present invention, the Attachment of a high-pressure fuel injection pump to a cylinder head a reciprocating internal combustion engine to improve such that a Enlargement of the cylinder head is not necessary. In addition, no should additional machining of the cylinder head may be required, as well as the simple Retrofittability of an already in production Reciprocating internal combustion engine with a high-pressure fuel injection pump be guaranteed.

Diese Aufgabe wird erfindungsgemäß durch ein System mit den Merkmalen des Anspruches 1 gelöst. Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen enthalten.This object is achieved by a system solved with the features of claim 1. Further advantageous Embodiments are included in the subclaims.

Der Halter zur Befestigung von Kraftstoffhochdruckeinspritzpumpen, ist so ausgebildet, daß er eine Nockenwellenlagerbrücke enthält. Gleichzeitig werden die bestehenden Bohrungen, die ursprünglich nur zur Befestigung einer Nockenwellenlagerbrücke gedacht sind, hier zur Befestigung des erfindungsgemäßen Halters verwendet. Daher sind im Vergleich zu einer Zylinderkopfvariante ohne Kraftstoffhochdruckeinspritzpumpe keine zusätzlichen Bearbeitungsschritte am Zylinderkopf nötig. Um eine ausreichende Stabilität des Halters zu gewährleisten, ist in allerdings noch ein dritter Befestigungs- oder Auflagerpunkt nötig.The holder for attachment of High-pressure fuel injection pumps, is designed so that it includes a camshaft bearing bridge. At the same time, the existing Drill holes originally only for mounting a camshaft bearing bridge are intended to be used here for attachment of the holder according to the invention. Therefore, compared to a cylinder head variant without High-pressure fuel injection pump no additional processing steps on Cylinder head needed. To ensure sufficient stability of the holder ensure, however, is still a third mounting or Auflagerpunkt necessary.

Bei einer vorteilhaften Ausgestaltung der Erfindung werden zwei oder mehr Nockenwellenlagerbrücken durch den Halter zur Befestigung von Kraftstoffhochdruckeinspritzpumpen ersetzt. Dies ist eine besonders einfach zu realisierende Variante, die keine konstruktiven oder produktionstechnischen Änderungen an dem Zylinderkopf einer Hubkolbenbrennkraftmaschine erfordern. In an advantageous embodiment of the invention, two or more Camshaft bearing bridges through the bracket for fastening High-pressure fuel injection pumps replaced. This is a particularly easy too realizing variant that is not constructive or production-related Require changes to the cylinder head of a reciprocating internal combustion engine.

Stand der Technik ist es, Kraftstoffhochdruckeinspritzpumpen mittels einer oder mehreren an einer Welle befindlichen Nocken anzutreiben. Dabei wird die Drehbewegung der Welle über einen oder mehrere Nocken auf einen Stößel übertragen und so in eine gewünschte Linearbewegung umgewandelt. Dieser Stößel ist üblicherweise als Tassenstößel ausgebildet, da Tassenstößel die beim Betrieb entstehenden Seitenkräfte aufnehmen können. Der Stößel treibt dann wiederum die Kraftstoffhochdruckeinspritzpumpe an. Nach der vorliegenden Erfindung hat der Halter zur Befestigung von Kraftstoffhochdruckeinspritzpumpen zusätzlich eine oder mehrere Bohrungen zur Aufnahme mindestens eines Stößels Nockenwellen-Lagerbrücken die als Halten für Aggregate dienen können sind für sich bekannt (US-A-4 913 105 , EP-A-0 353 988)The prior art is high-pressure fuel injection pumps by means of or to drive several located on a shaft cam. Here is the Rotary movement of the shaft via one or more cams on a plunger transferred and so converted into a desired linear motion. This Tappet is usually designed as a bucket tappets, as the tappets Operation can absorb arising side forces. The ram then drives turn on the high-pressure fuel injection pump. To The present invention has the holder for attachment of high-pressure fuel injection pumps additionally one or a plurality of bores for receiving at least one plunger Camshaft bearing bridges as holding for aggregates can serve are known per se (US-A-4 913 105 , EP-A-0 353 988)

In einer weiteren Ausgestaltung der Erfindung wird der oben erwähnte Stößel von einem für den Antrieb der Gaswechselventile bereits vorhandenen Nocken der Nockenwelle betätigt. Dies hat den Vorteil, daß keine zusätzlichen Bauteile, kein zusätzlicher Platzbedarf und keine zusätzlichen Bearbeitungsschritte im Vergleich zu einer Variante ohne den erfindungsgemäßen Halter zur Befestigung von Kraftstoffhochdruckeinspritzpumpen erforderlich sind.In a further embodiment of the invention, the above-mentioned plunger from a cam already present for driving the gas exchange valves the camshaft actuated. This has the advantage that no additional components, no additional space and no additional processing steps in the Comparison to a variant without the holder according to the invention for attachment required by high-pressure fuel injection pumps.

Bei einer weiteren vorteilhaften Ausführung befindet sich mindestens ein zusätzlicher Antriebsnocken für den Betrieb einer Kraftstoffhochdruckeinspritzpumpe auf der Nockenwelle einer Hubkolbenbrennkraftmaschine. Dadurch ist die Profilgestaltung des Antriebsnockens unabhängig von den Erfordernissen zur Betätigung der Gaswechselventile. Auch die Verwendung von zwei oder mehr Nocken ist so möglich zur Steigerung der Antriebsfrequenz der Kraftstoffhochdruckeinspritzpumpe und damit zur Erhöhung der Kraftstofförderleistung.In a further advantageous embodiment, there is at least one additional drive cam for the operation of a High-pressure fuel injection pump on the camshaft one Reciprocating internal combustion engine. This is the tread design of the Drive cam regardless of the requirements for the actuation of Gas exchange valves. The use of two or more cams is like that possible to increase the drive frequency of High-pressure fuel injection pump and thus to increase the Kraftstofförderleistung.

In einer weiteren vorteilhaften Ausgestaltung wird der Halter so dimensioniert, daß der Raum bis zu einem Zylinderkopfdeckel überbrückt wird. Bei dieser Variante kann die Hochdruckeinspritzpumpe auf der Außenseite einer Hubkolbenbrennkraftmaschine angeflanscht werden. Dies erlaubt eine einfache Montage der Hochdruckeinspritzpumpe und der zugehörigen Kraftstoff- und Elektroanschlüsse.In a further advantageous embodiment, the holder is dimensioned so that the space is bridged up to a cylinder head cover. At this Variant, the high-pressure injection pump on the outside of a Hubkolbenbrennkraftmaschine be flanged. This allows a simple Assembly of the high-pressure injection pump and the associated fuel and Electrical connections.

Die Erfindung wird anhand des in der beiliegenden Zeichnung gezeigten Ausführungsbeispiels näher erläutert. Es zeigt

Fig. 1
eine schematische perspektivische Ansicht des erfindungsgemäßen Halters zur Befestigung von Kraftstoffhochdruckeinspritzpümpen sowie der benachbarten Teile
The invention will be explained in more detail with reference to the embodiment shown in the accompanying drawings. It shows
Fig. 1
a schematic perspective view of the holder according to the invention for the attachment of high-pressure Kraftstoffspritzspritzpümpen and the adjacent parts

In Figur 1 ist ein erfihdungsgemäßer Halter 1 zur Befestigung von Kraftstoffhochdruckeinspritzpumpen 7 in einer perspektivischen Ansicht dargestellt. Weitere benachbarte Teile sind nach Art einer Explosionszeichung hinzugefügt. Zu erkennen sind eine Nockenwelle 2, mehreren Nocken 3 zur Betätigung von Gaswechselventilen, eine zusätzliche Nocke 5 zur Betätigung eines in einer Bohrung 9 laufenden Tassenstößels 4 sowie ein Teilabschnitt eines Zylinderkopfdeckels 6 mit Dichtungsplatte 10 und Dichtung 11 und eine Kraftstoffhochdruckeinspritzpumpe 7.In Figure 1 is a erfihdungsgemäßer holder 1 for attachment of High-pressure fuel injection pumps 7 in a perspective view shown. Other adjacent parts are in the manner of an explosion drawing added. Evident are a camshaft 2, a plurality of cams 3 for Actuation of gas exchange valves, an additional cam 5 for actuation a running in a hole 9 tappet 4 and a section a cylinder head cover 6 with sealing plate 10 and seal 11 and a High-pressure fuel injection pump 7.

In der hier gezeigten Ausführung sind zwei Nockenwellenlagerbrücken 8 Bestandteil des Halters 1. Außerdem ist die Kraftstoffhochdruckeinspritzpumpe 7 hier außerhalb des Motors oberhalb des Zylinderkopfdeckels 6 montiert.In the embodiment shown here, two camshaft bearing bridges 8 Part of the holder 1. In addition, the High-pressure fuel injection pump 7 here outside the engine above the Cylinder head cover 6 mounted.

Claims (4)

  1. System for fastening high pressure fuel injection pumps (7) to cylinder heads of reciprocating-piston combustion engines, having
    a high pressure fuel injection pump (7),
    at least one bucket tappet (4),
    a holder (1) for fastening the high pressure fuel injection pump (7) to the cylinder head of a reciprocating-piston combustion engine, which holder contains at least one camshaft bearing bridge (8) and one or more bores (9) for accommodating the at least one bucket tappet (4), and
    a camshaft (2) which has a plurality of cams (3, 5) for actuating gas exchange valves and for actuating the at least one bucket tappet (4).
  2. System according to Claim 1, characterized in that the cam (3) for actuating the at least one bucket tappet (4) is an existing cam (3) of the camshaft (2) for actuating gas exchange valves.
  3. System according to Claim 1, characterized in that the camshaft (2) has at least one additional cam (5) for actuating the at least one bucket tappet (4).
  4. System according to one of Claims 1 to 3, characterized in that the holder (1) is dimensioned in such a manner that the high pressure fuel injection pump (7) can be flange-mounted on the outside of the surface of the reciprocating-piston combustion engine.
EP01116173A 2001-07-04 2001-07-04 Adapter for a high pressure injection pump for a direct injection piston combustion engine Expired - Lifetime EP1283330B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE50108089T DE50108089D1 (en) 2001-07-04 2001-07-04 Adapter for high pressure fuel injection pumps for gasoline direct injection reciprocating internal combustion engines
EP01116173A EP1283330B1 (en) 2001-07-04 2001-07-04 Adapter for a high pressure injection pump for a direct injection piston combustion engine
US10/064,200 US6523518B2 (en) 2001-07-04 2002-06-20 Cylinder head assembly comprising a holder for the attachments of units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01116173A EP1283330B1 (en) 2001-07-04 2001-07-04 Adapter for a high pressure injection pump for a direct injection piston combustion engine

Publications (2)

Publication Number Publication Date
EP1283330A1 EP1283330A1 (en) 2003-02-12
EP1283330B1 true EP1283330B1 (en) 2005-11-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01116173A Expired - Lifetime EP1283330B1 (en) 2001-07-04 2001-07-04 Adapter for a high pressure injection pump for a direct injection piston combustion engine

Country Status (3)

Country Link
US (1) US6523518B2 (en)
EP (1) EP1283330B1 (en)
DE (1) DE50108089D1 (en)

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Also Published As

Publication number Publication date
DE50108089D1 (en) 2005-12-22
US20030005903A1 (en) 2003-01-09
US6523518B2 (en) 2003-02-25
EP1283330A1 (en) 2003-02-12

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