EP0457750B1 - Moteur à combustion interne à refroidissement liquide - Google Patents

Moteur à combustion interne à refroidissement liquide Download PDF

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Publication number
EP0457750B1
EP0457750B1 EP91890092A EP91890092A EP0457750B1 EP 0457750 B1 EP0457750 B1 EP 0457750B1 EP 91890092 A EP91890092 A EP 91890092A EP 91890092 A EP91890092 A EP 91890092A EP 0457750 B1 EP0457750 B1 EP 0457750B1
Authority
EP
European Patent Office
Prior art keywords
dynamo
cap
internal combustion
combustion engine
cover
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
EP91890092A
Other languages
German (de)
English (en)
Other versions
EP0457750A1 (fr
Inventor
Franz Dipl.Ing.Dr. Laimböck
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0457750A1 publication Critical patent/EP0457750A1/fr
Application granted granted Critical
Publication of EP0457750B1 publication Critical patent/EP0457750B1/fr
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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F02B77/13—Acoustic insulation
    • 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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Definitions

  • the invention relates to a liquid-cooled internal combustion engine with a piston-controlled outlet, in particular a two-stroke internal combustion engine, which is equipped with an alternator or an alternator and a lubricating oil pump and in which the cylinder head has a cap which seals against it and forms the coolant space, avoiding metallic contact the cylinder extends approximately to the outlet and has a crank-side cap sealing surface.
  • the invention is therefore based on the object of eliminating these deficiencies and reducing the vibration excitation by the frequency spectrum of the internal combustion engine to a minimum or largely preventing the transmission of structure-borne noise.
  • the invention solves this problem in that both the lubricating oil pump and the alternator are provided with lids which, like the cap, are interposed with soft seals and avoid metallic contact on the crank or machine housing, the Have the cap and the cover for the lubricating oil pump tightened collar screws for their attachment, between whose head and the cap or the cover a washer with a vulcanized rubber layer is inserted.
  • the cap and the cover for the lubricating oil pump are fastened with collar screws tightened to the stop, between the screw head and the cap or the cover the washers are inserted with a vulcanized rubber layer, so that on the one hand a reliable attachment of the cap or the achieved a lid and on the other hand metallic contact is avoided. Since these are collar screws, they can only be tightened to a certain extent, which prevents the soft seals from being pressed together too strongly. However, there is no metallic contact, because between the screw head and the cap or the cover, the washer is arranged. When adjusting the rubber hardness, care must of course be taken to ensure that the sealing function remains guaranteed.
  • the cylinder 1 of a two-stroke internal combustion engine has overflow channels 2 for the fuel-air mixture and an outlet channel 3, the slots of these channels being controlled by the piston 4.
  • the upper part of the cylinder 1 or the cylinder head 5 are water-cooled, the cylinder head 5 being a coolant chamber which is sealed off from it has forming cap 6, which extends approximately over the cylinder 1 to the outlet 3 and has a crank-side cap sealing surface 7.
  • a soft seal 9 is provided between the cap sealing surface 7 and the engine or crankcase 8.
  • collar screws 10 for fastening the cap 6 to the housing 8 are collar screws 10 (Fig.
  • a washer 12 is inserted with vulcanized rubber layer 13, so that any metallic Contact between the cap 6 and the housing 8 or the fastening screw 10 is avoided.
  • a thermostat is designated, which has no inventive significance.
  • a cover 16 is also provided for the lubricating oil pump 15, which rests on the crankcase 8 via a soft seal 9 and has a maintenance opening 18 which can be closed by a further cover 17.
  • the cover 16 is attached to the crankcase 8 in the manner shown in FIG. 2.
  • the oil pump 15 is not attached to the cover 16, but on a support 20 held by arms 19 of the crankcase 8, so that the required distance of the oil pump drive gear 21 from the crankshaft 22 remains constant.
  • the cover 23 for the alternator 24 terminates in a connection piece 25 with which the cover 23 in the cylindrical housing part 8a of the crankcase 8 for the alternator 24 with the interposition of O-rings 26 is inserted without screws.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Gasket Seals (AREA)

Claims (2)

  1. Moteur à combustion interne à refroidissement par liquide, avec un échappement commandé par le piston, en particulier moteur à combustion interne à deux temps, équipé d'une génératrice d'éclairage et d'allumage (24), ainsi que d'une pompe à huile de lubrification (15), et dans lequel la culasse (5) comporte un capuchon (6) formant l'enceinte destinée au liquide de refroidissement, appliqué contre elle de façon étanche mais en évitant tout contact métallique, passant sur le cylindre (1) en arrivant à peu près jusqu'à l'échappement (3) et présentant une surface d'étanchéité de capuchon (7), côté vilebrequin,
    caractérisé en ce que tant la pompe à huile de lubrification (15) qu'également la génératrice d'éclairage et d'allumage (24) sont pourvues de couvercles (16, 17; 23), maintenus, tout comme le capuchon (6), sur sa surface d'étanchéité (7), avec interposition de joints d'étanchéité souples (9; 26) et en évitant tout contact métallique sur le carter de vilebrequin ou le carter moteur (8; 8a), le capuchon (6) et le couvercle (16, 17) destiné à la pompe à huile de lubrification (15) comportant pour leur fixation des vis à embase (10) serrées sur une butée, une rondelle de garniture (12) dotée d'une couche en caoutchouc (13) vulcanisée étant insérée entre la tête (11) des vis et le capuchon (6).
  2. Moteur à combustion interne selon la revendication 1, caractérisé en ce que le couvercle (23) destiné à la génératrice d'éclairage et d'allumage (24) se transforme en une tubulure (25), à l'aide de laquelle il est enfiché, sans vissage, dans la partie de carter (8a) cylindrique destinée à la génératrice d'éclairage et d'allumage (24), avec interposition de joints toriques (26).
EP91890092A 1990-05-16 1991-04-29 Moteur à combustion interne à refroidissement liquide Expired - Lifetime EP0457750B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1086/90 1990-05-16
AT0108690A ATA108690A (de) 1990-05-16 1990-05-16 Flüssigkeitsgekühlte brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0457750A1 EP0457750A1 (fr) 1991-11-21
EP0457750B1 true EP0457750B1 (fr) 1993-12-15

Family

ID=3506285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91890092A Expired - Lifetime EP0457750B1 (fr) 1990-05-16 1991-04-29 Moteur à combustion interne à refroidissement liquide

Country Status (6)

Country Link
US (1) US5241934A (fr)
EP (1) EP0457750B1 (fr)
JP (1) JPH04228862A (fr)
AT (1) ATA108690A (fr)
DE (1) DE59100715D1 (fr)
ES (1) ES2048005T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6491014B1 (en) * 2000-08-30 2002-12-10 Keith Eickert Valve cover assembly for internal combustion engine
JP3943972B2 (ja) * 2002-03-19 2007-07-11 本田技研工業株式会社 エンジンのケーシング
JP6055505B2 (ja) * 2015-03-31 2016-12-27 富士重工業株式会社 エンジン

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT121814B (de) * 1928-11-06 1931-03-10 Climax Motorenwerke Und Schiff Mehrzylindrige Brennkraftmaschine.
US3926157A (en) * 1973-10-12 1975-12-16 Bombardier Ltd Two-cycle engine with inlet porting by rotary valve
GB1582148A (en) * 1976-05-12 1980-12-31 Deere & Co Vibration isolation assembly
US4066058A (en) * 1976-05-12 1978-01-03 Deere & Company Vibration isolation system
AT387624B (de) * 1981-03-31 1989-02-27 Steyr Daimler Puch Ag Hubkolben-brennkraftmaschine
DE3519205A1 (de) * 1985-05-29 1986-12-04 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Befestigung einer abdeckhaube an einem zylinderkopf
DE3637890A1 (de) * 1985-11-06 1987-05-14 Steyr Daimler Puch Ag Fluessigkeitsgekuehlte brennkraftmaschine mit kolbengesteuertem auslass, insbesondere zweitakt-brennkraftmaschine
US4667628A (en) * 1986-03-06 1987-05-26 General Motors Corporation Oil pan isolation mounting and seal
US4719892A (en) * 1986-06-26 1988-01-19 General Motors Corporation Cavity closure with isolator seal and method

Also Published As

Publication number Publication date
JPH04228862A (ja) 1992-08-18
EP0457750A1 (fr) 1991-11-21
ES2048005T3 (es) 1994-03-01
DE59100715D1 (de) 1994-01-27
ATA108690A (de) 1994-12-15
US5241934A (en) 1993-09-07

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