EP0989294A1 - Aus mehreren Stücken aufgebautes Zahnriemengehäuse für eine Brennkraftmaschine - Google Patents

Aus mehreren Stücken aufgebautes Zahnriemengehäuse für eine Brennkraftmaschine Download PDF

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Publication number
EP0989294A1
EP0989294A1 EP99402277A EP99402277A EP0989294A1 EP 0989294 A1 EP0989294 A1 EP 0989294A1 EP 99402277 A EP99402277 A EP 99402277A EP 99402277 A EP99402277 A EP 99402277A EP 0989294 A1 EP0989294 A1 EP 0989294A1
Authority
EP
European Patent Office
Prior art keywords
engine
internal combustion
cover
support
cap
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.)
Withdrawn
Application number
EP99402277A
Other languages
English (en)
French (fr)
Inventor
Jean-Jacques Brugirard
Pierre Gaumet
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of EP0989294A1 publication Critical patent/EP0989294A1/de
Withdrawn legal-status Critical Current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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0046—Shape of casings adapted to facilitate fitting or dismantling of engine parts
    • 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
    • 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
    • F01L1/024—Belt drive
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings

Definitions

  • the present invention relates to the casing distribution of an internal combustion engine intended in particular to equip a motor vehicle or road.
  • combustion engines internal multi-cylinder type have distribution systems, belt, chain or by waterfall gables, which drive the camshaft (s) and a certain number of accessory organs (pumps ...) from the crankshaft.
  • This distribution system extends outside the cylinder block and the cylinder head on one of the longitudinal sides of the motor called distribution face.
  • This training system is conventionally protected by means of a housing called distribution which provides both protection mechanical in relation to shock but also a acoustic protection and tightness compared to the more or less aggressive environment of the engine (dust, sand, fluids ).
  • This housing whose shape is suitable for each type of engine, is made using one or more pieces obtained by molding and which can also be produced both plastic and alloy aluminum, cast iron or stamped sheet metal.
  • the timing cover incorporates the engine support function
  • the latter includes then an intermediate piece in cast iron or aluminum called engine mount.
  • This engine mount is fixed securely on the cylinder block and the cylinder head and serves as a fulcrum for the arm of link also in cast iron or aluminum, arm link intended to rest by its free end on the silent block or shock absorber pad attached to the vehicle chassis.
  • This link arm is integrated in the upper part of the housing distribution also called cap. This headdress thus simultaneously performs the functions of timing cover and arm cover link for engine suspension.
  • the object of the present invention is therefore improve the design of the distribution by developing a housing distribution which integrates the link function engine-vehicle and which is of reduced weight.
  • the housing distribution for internal combustion engine intended to equip a vehicle is characterized in that that it includes an intermediate cover element forming engine support and a cover element upper, this upper cover element being forced against the engine support by the cap forming the link arm between the engine and the vehicle chassis.
  • the cover element upper is fixed on the engine support by clipping means.
  • the cover element upper is made of plastic.
  • the engine support and the cap are made of metal alloy.
  • the cap has an arm intended to come to rest on the upper face of said upper cover element in order to exercise a predetermined pressure on this element of rollover.
  • the arm of the cap intended to come to rest on the upper face of the upper cover element is fixed by its free end on the cylinder head or the cylinder head cover of the motor.
  • Figure 1 is a view in partial perspective of the distribution housing object of the invention.
  • timing cover referenced 1 for an engine with internal combustion of the multicylinder type using a belt distribution system for to equip for example a motor vehicle.
  • the timing case according to the invention is applicable to an engine using a chain or cascade of gable or any other drive mechanism for camshafts and accessories by the crankshaft.
  • the timing cover intended to come attach to one of the longitudinal sides of the engine, mainly comprises three elements of separate cowlings.
  • the casing 1 therefore comprises an element plastic lower cover 2 molded, intended to be fixed on the cylinder block of the motor, to ensure the protection of the lower part of the distribution system of which only the belt 6 has been shown.
  • cowling 2 Above the lower element of cowling 2 extends the intermediate element of cowling 3 intended to be fixed on the cylinder head of the engine. This part which protects the central part of the distribution system, is also intended to allow the fixing of the engine on the vehicle chassis.
  • This room 3 is made by molding, in aluminum alloy or cast.
  • the engine support 3 is capped by the upper cowling element 4 made of molded plastic.
  • This upper cowling element 4 which is more particularly intended to form the cover of the timing cover, comes clip on the upper face of the motor support 3 by means of protruding lugs on its face lower which are housed in orifices correspondents arranged on the upper tablature of the engine support 3.
  • the fixing system by clips is not limiting and any other system of fixing by notches, staples, etc. not requiring neither tools nor machining can be used.
  • the cover 5 which forms the arm of connection between the engine and the shock absorber pad or silent block fixed to the vehicle chassis, is adapted to fix everything on the engine mount ensuring adequate pressure on the element upper cover 4 towards the support engine.
  • the cap 5 is composed essentially of a base 52 coming to be fixed on the upper tablature of the engine support 3 to the exterior of the upper cowling element 4. This base 52 is extended by two separate arms 51 and 53.
  • the arm 53 projecting perpendicularly to the side face of the motor, is intended to ensure the connection between the engine and the chassis vehicle.
  • the arm 51 projecting towards the cylinder head is him meant to overcome the rollover element upper 4 to be fixed on the cylinder head or the cylinder head cover and thus contribute to the rigidity of the connection between the engine and the chassis.
  • the dimensions of the arm 51 are adapted so that the latter comes to bear against the upper cowling element 4 by exerting a adapted stress on the upper face of this last, a constraint which simultaneously ensures the mechanical strength of this cover element and its sealing.
  • the arm 51 has a suitable width to only partially cover the face cover 4 and therefore have a reduced size and weight.
  • the upper cover element 4 may have a shape adapted to the right of the arm 51 such as shoulders arranged on both sides.
  • the timing cover according to the invention simultaneously performs the function covering and encapsulation of the distribution side of the motor and the function linking the motor to the chassis with massive pieces reduced to the extreme and plastic parts easy to assemble.
  • the upper cover element being fixed simply without screws or studs, it mounts simply in the factory and also withdraws simply after sales without tools and goes out flexible engine compartment giving access largely at the top of the system distribution.
  • the fixing of the element of upper cowling 4 on the engine support 3 is sufficient to maintain it in the absence of cap 5, which makes it possible to assemble this cowling element 4 as soon as the engine is mounted while the cap is assembled that well later during the assembly operations of the engine on the vehicle.
  • the presence of the element of upper cowling therefore avoids having to use a additional dressing room, cover or cover, to protect the dispensing during the production cycle and the transport between the engine manufacturing plant and the vehicle assembly, trim piece traditionally recycled or discarded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP99402277A 1998-09-24 1999-09-17 Aus mehreren Stücken aufgebautes Zahnriemengehäuse für eine Brennkraftmaschine Withdrawn EP0989294A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9811972A FR2783876B1 (fr) 1998-09-24 1998-09-24 Carter de distribution multipiece pour moteur a combustion interne
FR9811972 1998-09-24

Publications (1)

Publication Number Publication Date
EP0989294A1 true EP0989294A1 (de) 2000-03-29

Family

ID=9530816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99402277A Withdrawn EP0989294A1 (de) 1998-09-24 1999-09-17 Aus mehreren Stücken aufgebautes Zahnriemengehäuse für eine Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP0989294A1 (de)
FR (1) FR2783876B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1283329A2 (de) * 2001-08-10 2003-02-12 Adam Opel Ag Brennkraftmaschine mit gekapseltem Zahnriemen für die Nockenwelle
FR2862914A1 (fr) * 2003-12-02 2005-06-03 Renault Sas Dispositif de support moteur
EP1873384A2 (de) * 2006-06-30 2008-01-02 Mazda Motor Corporation Vorderteilkonstruktion eines Motors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508072A (en) * 1983-02-12 1985-04-02 Toyota Jidosha Kabushiki Kaisha Sealing device for timing belt cover and engine mount bracket
JPS61255249A (ja) * 1985-05-08 1986-11-12 Honda Motor Co Ltd エンジンにおけるタイミングベルトのカバ−装置
DE4302062A1 (de) * 1992-01-27 1993-07-29 Nissan Motor
DE29705972U1 (de) * 1997-04-04 1997-05-22 DEUTZ Aktiengesellschaft, 51063 Köln Abdeckhaube
DE19612360C1 (de) * 1996-03-28 1997-06-19 Daimler Benz Ag Steuergehäusedeckel für eine Brennkraftmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508072A (en) * 1983-02-12 1985-04-02 Toyota Jidosha Kabushiki Kaisha Sealing device for timing belt cover and engine mount bracket
JPS61255249A (ja) * 1985-05-08 1986-11-12 Honda Motor Co Ltd エンジンにおけるタイミングベルトのカバ−装置
DE4302062A1 (de) * 1992-01-27 1993-07-29 Nissan Motor
DE19612360C1 (de) * 1996-03-28 1997-06-19 Daimler Benz Ag Steuergehäusedeckel für eine Brennkraftmaschine
DE29705972U1 (de) * 1997-04-04 1997-05-22 DEUTZ Aktiengesellschaft, 51063 Köln Abdeckhaube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 111 (M - 578) 8 April 1987 (1987-04-08) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1283329A2 (de) * 2001-08-10 2003-02-12 Adam Opel Ag Brennkraftmaschine mit gekapseltem Zahnriemen für die Nockenwelle
EP1283329A3 (de) * 2001-08-10 2003-09-10 Adam Opel Ag Brennkraftmaschine mit gekapseltem Zahnriemen für die Nockenwelle
FR2862914A1 (fr) * 2003-12-02 2005-06-03 Renault Sas Dispositif de support moteur
WO2005057000A1 (fr) * 2003-12-02 2005-06-23 Renault Sas Dispositif de support moteur
EP1873384A2 (de) * 2006-06-30 2008-01-02 Mazda Motor Corporation Vorderteilkonstruktion eines Motors
EP1873384A3 (de) * 2006-06-30 2014-01-22 Mazda Motor Corporation Vorderteilkonstruktion eines Motors

Also Published As

Publication number Publication date
FR2783876B1 (fr) 2000-10-27
FR2783876A1 (fr) 2000-03-31

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