EP0694117B1 - Internal combustion engine with fuel injection - Google Patents

Internal combustion engine with fuel injection Download PDF

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Publication number
EP0694117B1
EP0694117B1 EP94914353A EP94914353A EP0694117B1 EP 0694117 B1 EP0694117 B1 EP 0694117B1 EP 94914353 A EP94914353 A EP 94914353A EP 94914353 A EP94914353 A EP 94914353A EP 0694117 B1 EP0694117 B1 EP 0694117B1
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EP
European Patent Office
Prior art keywords
pump
rocker arm
combustion engine
piston
oil
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
EP94914353A
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German (de)
French (fr)
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EP0694117A1 (en
Inventor
Erich Absenger
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.)
Motorenfabrik Hatz GmbH and Co KG
Original Assignee
Motorenfabrik Hatz GmbH and Co KG
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
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Publication of EP0694117A1 publication Critical patent/EP0694117A1/en
Application granted granted Critical
Publication of EP0694117B1 publication Critical patent/EP0694117B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0001—Fuel-injection apparatus with specially arranged lubricating system, e.g. by fuel oil
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • 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
    • 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
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to an internal combustion engine with fuel injection, in particular a single-cylinder diesel engine, in which a rocker arm is actuated via a camshaft for driving the injection pump.
  • the task is to simplify the design of the engine, which is achieved in that the pump plunger Injection pump is connected via a driver to the rocker arm, wherein a preloaded compression spring is also supported on the rocker arm, which holds the scanning point of the rocker arm on the cam and is received in a hollow cylinder which forms the piston of an oil pump. This eliminates the need for a return spring for the injection pump.
  • the plunger of the injection pump is expediently connected to one end of the rocker arm and the pump piston is supported on its other end, which extends beyond its cam-side scanning point.
  • the compression spring for the rocker arm serves the further purpose of extending the piston of an oil pump from the pump cylinder during the suction stroke of the pump that oil can be sucked into the pump, which is pumped out of the pump into a lubricating oil channel connected to it during the subsequent delivery stroke.
  • the pump piston is retracted into the pump cylinder against the compression spring by the cam of the camshaft.
  • the oil pump is expediently designed such that the pump cylinder is connected to an oil container via a suction valve and to a lubricating oil channel via a pressure valve.
  • the pump cylinder is expediently arranged such that the suction valve opens directly into the sump of the oil pan.
  • the drawing shows a partial cross section through a single-cylinder diesel engine in the area of the camshaft 1.
  • This has a single cam 2, which is used for actuation the rocker arm 3, with which the valve tappets for the intake and exhaust valve are controlled, on the other hand for the actuation of a rocker arm 5, with which the injection pump 5 is controlled.
  • This sits with its pump cylinder 7 directly in a corresponding bore of the cylinder head 8, in which the corresponding channels for the fuel flow are incorporated, namely a channel 9 for the fuel supply and a channel 10 for the fuel return line.
  • a connection thread 12 is provided at the upper end of the pump head 11 for connecting the pressure line.
  • the pump plunger 13 is connected with its rocker arm end 14 via a driver 15 to a scanning roller 16 mounted on the shaft 17.
  • the rocker arm 5 for actuating the injection pump 6 can be pivoted about a rocker arm pivot axis 20.
  • the contact between the scanning roller 18 and the cam 2 of the camshaft 1 is ensured by a prestressed compression spring 22, which is attached to an extended end 21 of the rocker arm 5 and which simultaneously forms the tension spring of an oil pump 23.
  • the oil pump 23 has a hollow cylindrical piston 24, in which the upper end of the compression spring 22 is received; the lower end of which is supported against a valve body 25 which is fastened in the interior of a housing 26 serving as a pump cylinder by means of a snap ring 27.
  • the valve body 25 forms, together with a valve ball 28, which sits over an opening 29 of the valve body 25, a suction valve. Through the opening 29, oil is drawn into the interior of the pump cylinder 26 from an oil sump of the oil pan below it, while the piston 24 is moved out of the pump cylinder 26 by the compression spring 22.
  • the piston 23 then shortens the compression spring 23 in the subsequent inward stroke, the oil sucked into the interior of the pump cylinder 26 exits through a pressure valve 31 into a lubricating oil channel 32 connected to it.
  • the compression of the compression spring 22 takes place via the cam drive, a scanning roller 33 mounted in the associated end of the rocker arm 5 pressing against the end face of the piston 24, so that it moves into the pump cylinder 26.
  • the scanning roller 33 is rotatably mounted about a pin 38 in the end 21 of an extension 37 of the rocker arm 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

In an internal combustion engine with fuel injection, especially a one-cylinder diesel engine, a rocker arm (5) is actuated to drive the injection pump (6) via the camshaft (1). Set to the rocker arm (5) is a prestressed pressure spring (22) which keeps the contact point (18) of the rocker arm (5) on the the cam (2). The pressure spring (22) is housed in a hollow cylinder which forms the piston (24) of an oil pump (23).

Description

Die Erfindung betrifft einen Verbrennungsmotor mit Kraftstoff-Einspritzung, insbesondere einen Einzylinder-Dieselmotor, bei welchem über eine Nockenwelle ein Kipphebel für den Antrieb der Einspritzpumpe betätigt wird.The invention relates to an internal combustion engine with fuel injection, in particular a single-cylinder diesel engine, in which a rocker arm is actuated via a camshaft for driving the injection pump.

Es ist aus Dokument FR-A-1359272 bekannt, über eine Seite eines auf seiner anderen Seite nockenbetätigten Kipphebels zwei Pumpenaggregate, nämlich eine Kraftstofförderpumpe und eine Ölpumpe anzutreiben. Dabei sind beide Aggregate federnd gegen den Kipphebel abgestützt. Eine Vereinfachung der Aggregate als solche ist damit nicht verbunden.It is known from document FR-A-1359272 to drive two pump units, namely a fuel feed pump and an oil pump, via one side of a rocker arm that is cam-operated on its other side. Both units are resiliently supported against the rocker arm. There is no simplification of the aggregates as such.

Bei einem Verbrennungsmotor der eingangs genannten Art besteht die Aufgabe darin, den Motor konstruktiv zu vereinfachen, was dadurch erreicht wird, daß der Pumpen-Stempel der Einspritzpumpe über einen Mitnehmer mit dem Kipphebel verbunden ist, wobei am Kipphebel außerdem eine vorgespannte Druckfeder abgestützt ist, welche den Abtastpunkt des Kipphebels am Nocken hält und die in einem Hohlzylinder aufgenommen ist, welcher den Kolben einer Ölpumpe bildet. Somit erübrigt sich eine Rückstellfeder für die Einspritzpumpe.In an internal combustion engine of the type mentioned, the task is to simplify the design of the engine, which is achieved in that the pump plunger Injection pump is connected via a driver to the rocker arm, wherein a preloaded compression spring is also supported on the rocker arm, which holds the scanning point of the rocker arm on the cam and is received in a hollow cylinder which forms the piston of an oil pump. This eliminates the need for a return spring for the injection pump.

Dabei ist mit einem Ende des Kipphebels zweckmäßig der Stempel der Einspritzpumpe verbunden und an dessen über seinen nockenseitigen Abtastpunkt hinaus erstreckten anderen Ende der Pumpen-Kolben abgestützt.In this case, the plunger of the injection pump is expediently connected to one end of the rocker arm and the pump piston is supported on its other end, which extends beyond its cam-side scanning point.

Gemäß diesem Vorschlag dient die Druckfeder für den Kipphebel dem weiteren Zweck, den Kolben einer Ölpumpe während des Saughubs der Pumpe aus dem Pumpen-Zylinder auszufahren, so daß Öl in die Pumpe angesaugt werden kann, welches während des nachfolgenden Förderhubs aus der Pumpe in einen daran angeschlossenen Schmierölkanal gefördert wird. Während des Förderhubs wird der Pumpen-Kolben durch den Nocken der Nockenwelle gegen die Druckfeder in den Pumpen-ZylLnder eingefahren.According to this proposal, the compression spring for the rocker arm serves the further purpose of extending the piston of an oil pump from the pump cylinder during the suction stroke of the pump that oil can be sucked into the pump, which is pumped out of the pump into a lubricating oil channel connected to it during the subsequent delivery stroke. During the delivery stroke, the pump piston is retracted into the pump cylinder against the compression spring by the cam of the camshaft.

Da die Druckfeder der Ölpumpe gleichzeitig die Anlage des Abtaszpunkts des Kipphebels am Nocken sicherstellt, kann eine Einspritzpumpe mit einem Pumpen-Stempel ohne Rückstellfeder verwendet werden, dessen Ende statt dessen über den Mitnehmer mit dem Kipphebel gekoppelt ist.Since the compression spring of the oil pump also ensures that the rocker arm's contact point is in contact with the cam, an injection pump with a pump plunger without a return spring can be used, the end of which is instead coupled to the rocker arm via the driver.

Die Ölpumpe ist zweckmäßig derart ausgebildet, daß der Pumpen-Zylinder über ein Saugventil mit einem Ölbehälter und über ein Druckventil mit einem Schmierölkanal verbunden ist.The oil pump is expediently designed such that the pump cylinder is connected to an oil container via a suction valve and to a lubricating oil channel via a pressure valve.

Zweckmäßig ist der Pumpen-Zylinder so angeordnet, daß das Saugventil direkt in den Sumpf der Ölwanne mündet.The pump cylinder is expediently arranged such that the suction valve opens directly into the sump of the oil pan.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung erläutert.An exemplary embodiment of the invention is explained below with reference to the drawing.

Die Zeichnung zeigt einen Teilquerschnitt durch einen Einzylinder-Dieselmotor im Bereich der Nockenwelle 1. Diese besitzt einen einzigen Nocken 2, der einerseits für die Betätigung der Schlepphebel 3, mit denen die Ventilstößel für das Einlaß- und das Auslaßventil gesteuert werden, andererseits für die Betätigung eines Kipphebels 5, mit welchem die Einspritzpumpe 5 gesteuert wird dient. Diese sitzt mit ihrem Pumpen-Zylinder 7 direkt in einer entsprechenden Bohrung des Zylinderkopfs 8, in welchen auch die entsprechenden Kanäle für den Kraftstofffluß eingearbeitet sind, nämlich ein Kanal 9 für die Kraftstoffzuführung und ein Kanal 10 für die Kraftstoffrückleitung. Für den Anschluß der Druckleitung ist am oberen Ende des Pumpenkopfs 11 ein Anschlußgewinde 12 vorgesehen. Der Pumpenstempel 13 ist mit seinem kipphebelseitigen Ende 14 über einen Mitnehmer 15 mit einer auf der Welle 17 gelagerten Abtastrolle 16 verbunden. Eine weitere Abtastrolle 18, die um einen im Kipphebel 5 gelagerten Bolzen 19 drehbar ist, wirkt mit dem Nocken 2 zusammen. Der Kipphebel 5 für die Betätigung der Einspritzpumpe 6 ist um eine Kipphebelschwenkachse 20 verschwenkbar. Der Kontakt zwischen der Abtastrolle 18 und dem Nocken 2 der Nockenwelle 1 wird sichergestellt durch eine an einem verlängerten Ende 21 des Kipphebels 5 ansetzende vorgespannte Druckfeder 22, welche gleichzeitig die Spannfeder einer Ölpumpe 23 bildet. Die Ölpumpe 23 besitzt einen hohlzylindrischen Kolben 24, in welchem das obere Ende der Druckfeder 22 aufgenommen ist; dessen unteres Ende ist gegen einen Ventilkörper 25 gestützt, der im Inneren eines als Pumpen-Zylinder dienenden Gehäuses 26 mittels eines Sprengrings 27 befestigt ist. Der Ventilkörper 25 bildet zusammen mit einer Ventilkugel 28, die über einer Öffnung 29 des Ventilkörpers 25 sitzt, ein Saugventil. Durch die Öffnung 29 wird Öl aus einem darunterliegenden Ölsumpf der Ölwanne gemäß Pfeil 3 in das Innere des Pumpen-Zylinder 26 angesaugt, während der Kolben 24 durch die Druckfeder 22 aus dem Pumpen-Zylinder 26 ausgefahren wird. Wenn der Kolben 23 dann im nachfolgenden, einwärts gerichteten Hub die Druckfeder 23 verkürzt, tritt das in das Innere des Pumpen-Zylinders 26 angesaugte Öl durch ein Druckventil 31 in einen daran angeschlossenen Schmierölkanal 32 aus. Die Kompression der Druckfeder 22 erfolgt über den Nockentrieb, wobei eine im zugeordneten Ende des Kipphebels 5 gelagerte Abtastrolle 33 gegen die Stirnfläche des Kolbens 24 drückt, so daß er in den Pumpen-Zylinder 26 einfährt. Die Abtastrolle 33 ist drehbar um einen Bolzen 38 im Ende 21 einer Verlängerung 37 des Kipphebels 5 gelagert. Durch den dabei im Pumpen-Zylinder 26 erzeugten Öldruck wird die Ventilkugel 35 des Druckventils 31 von ihrem Sitz abgehoben, so daß Drucköl durch die Bohrung 36 im Ventilsitz austritt und in den Schmierölkanal 32 entsprechend dem Rythmus der Nockenbetätigung gefördert wird. Eine derartige Schmierung z.B. der Kurbelwellenlager mit Nockenwellenfrequenz ist üblich und ausreichend. Infolge der günstigen Positionierung der Ölpumpe 23 im Zylinderkopf 8 nahe der Nockenwelle 1 ist besonders günstig wegen der kurzen Druckleitung bis zu der unmittelbar daneben liegenden (nicht gekennzeichneten) Kurbelwelle und wegen der eben so kurzen Saugleitung zu der unmittelbar darunter liegenden Ölwanne.The drawing shows a partial cross section through a single-cylinder diesel engine in the area of the camshaft 1. This has a single cam 2, which is used for actuation the rocker arm 3, with which the valve tappets for the intake and exhaust valve are controlled, on the other hand for the actuation of a rocker arm 5, with which the injection pump 5 is controlled. This sits with its pump cylinder 7 directly in a corresponding bore of the cylinder head 8, in which the corresponding channels for the fuel flow are incorporated, namely a channel 9 for the fuel supply and a channel 10 for the fuel return line. A connection thread 12 is provided at the upper end of the pump head 11 for connecting the pressure line. The pump plunger 13 is connected with its rocker arm end 14 via a driver 15 to a scanning roller 16 mounted on the shaft 17. Another scanning roller 18, which is rotatable about a pin 19 mounted in the rocker arm 5, interacts with the cam 2. The rocker arm 5 for actuating the injection pump 6 can be pivoted about a rocker arm pivot axis 20. The contact between the scanning roller 18 and the cam 2 of the camshaft 1 is ensured by a prestressed compression spring 22, which is attached to an extended end 21 of the rocker arm 5 and which simultaneously forms the tension spring of an oil pump 23. The oil pump 23 has a hollow cylindrical piston 24, in which the upper end of the compression spring 22 is received; the lower end of which is supported against a valve body 25 which is fastened in the interior of a housing 26 serving as a pump cylinder by means of a snap ring 27. The valve body 25 forms, together with a valve ball 28, which sits over an opening 29 of the valve body 25, a suction valve. Through the opening 29, oil is drawn into the interior of the pump cylinder 26 from an oil sump of the oil pan below it, while the piston 24 is moved out of the pump cylinder 26 by the compression spring 22. If the piston 23 then shortens the compression spring 23 in the subsequent inward stroke, the oil sucked into the interior of the pump cylinder 26 exits through a pressure valve 31 into a lubricating oil channel 32 connected to it. The compression of the compression spring 22 takes place via the cam drive, a scanning roller 33 mounted in the associated end of the rocker arm 5 pressing against the end face of the piston 24, so that it moves into the pump cylinder 26. The scanning roller 33 is rotatably mounted about a pin 38 in the end 21 of an extension 37 of the rocker arm 5. Due to the oil pressure generated in the pump cylinder 26, the valve ball 35 of the pressure valve 31 is lifted from its seat, so that pressure oil exits through the bore 36 in the valve seat and is conveyed into the lubricating oil channel 32 in accordance with the rhythm of the cam actuation. Such lubrication, for example of the crankshaft bearings with camshaft frequency, is common and sufficient. As a result of the favorable positioning of the oil pump 23 in the cylinder head 8 close to the camshaft 1, it is particularly favorable because of the short pressure line to the crankshaft (not shown) directly next to it and because of the equally short suction line to the oil pan immediately below.

Claims (4)

  1. A combustion engine including a fuel injection system, in particular a single-cylinder diesel engine in which a rocker arm (5) is actuated by a camshaft (1) for driving an injection pump (6) the pump piston (13) of which is connected to the rocker arm (5) by a dog (15) with an additional biased compression spring (22) being supported by the rocker arm (5). supporting the pick-up point Ii 8) of the rocker arm (5) on the cam (2) and provided in a hollow cylinder forming the piston (24) of an oil pump (23).
  2. A combustion engine according to Claim 1, characterised in that the piston (13) of the injection pump (6) is connected to one end of the rocker arm (5) and is supported to the other end of the pump piston (25) extending over the pick-up point (18) on the cam side.
  3. A combustion engine according to Claim one. characterised in that the pump cylinder (26) is connected by a suction valve to an oil tank and by a pressure valve to a lubricant channel (32).
  4. A combustion engine according to Claim 3, characterised in that the suction valve is directly connected to the oil-pan sump.
EP94914353A 1993-04-16 1994-04-08 Internal combustion engine with fuel injection Expired - Lifetime EP0694117B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4312393 1993-04-16
DE4312393A DE4312393C2 (en) 1993-04-16 1993-04-16 Rocker arm for injection and oil pump
PCT/EP1994/001096 WO1994024421A1 (en) 1993-04-16 1994-04-08 Internal combustion engine with fuel injection

Publications (2)

Publication Number Publication Date
EP0694117A1 EP0694117A1 (en) 1996-01-31
EP0694117B1 true EP0694117B1 (en) 1996-10-23

Family

ID=6485580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94914353A Expired - Lifetime EP0694117B1 (en) 1993-04-16 1994-04-08 Internal combustion engine with fuel injection

Country Status (4)

Country Link
EP (1) EP0694117B1 (en)
AU (1) AU6677094A (en)
DE (2) DE4312393C2 (en)
WO (1) WO1994024421A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5957673A (en) * 1993-03-11 1999-09-28 Motorenfabrik Hatz Gmbh & Co. Kg. Injection pump for diesel engines
SE501026C2 (en) * 1993-03-17 1994-10-24 Volvo Ab Fuel injection device for internal combustion engines
GB2531538A (en) * 2014-10-20 2016-04-27 Gm Global Tech Operations Llc Internal Combustion Engine Comprising a fuel unit pump actuated by a camshaft

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521267A (en) * 1922-07-17 1924-12-30 Lawrence W Andrews Oil pump
DE694245C (en) * 1935-04-11 1940-07-27 Junkers Flugzeug -und Motorenwerke Akt.-Ges. in Dessau. Arrangement of the injection pumps of internal combustion engines
DE697009C (en) * 1937-06-08 1940-10-03 Friedrich Deckel Praez S Mecha Injection pump for internal combustion engines, lubrication
DE717647C (en) * 1937-06-25 1942-02-19 Kloeckner Humboldt Deutz Ag Auxiliary pump set for two-stroke internal combustion engines
US2955582A (en) * 1957-06-21 1960-10-11 Gen Motors Corp Timed fuel injection system
FR1359272A (en) * 1963-03-13 1964-04-24 Renault Combination of auxiliary oil pump and automobile fuel pump
DE2037117A1 (en) * 1969-09-18 1971-04-01 VEB Barkas Werke, χ 9000 Karl Marx Stadt Fuel injection pump for multi-cylinder internal combustion engines
DE2723969C2 (en) * 1977-05-27 1983-02-17 Klöckner-Humboldt-Deutz AG, 5000 Köln Fuel injection pump for internal combustion engines
GB2090911B (en) * 1980-11-28 1984-06-27 Yanmar Diesel Engine Co Overhead cam type diesel engine

Also Published As

Publication number Publication date
AU6677094A (en) 1994-11-08
WO1994024421A1 (en) 1994-10-27
EP0694117A1 (en) 1996-01-31
DE4312393C2 (en) 1996-08-29
DE4312393A1 (en) 1994-10-20
DE59400917D1 (en) 1996-11-28

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