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EP0185009B1 - Moteur à combustion interne avec une capsule insonorisante qui enferme celui-ci - Google Patents

Moteur à combustion interne avec une capsule insonorisante qui enferme celui-ci Download PDF

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Publication number
EP0185009B1
EP0185009B1 EP19850890300 EP85890300A EP0185009B1 EP 0185009 B1 EP0185009 B1 EP 0185009B1 EP 19850890300 EP19850890300 EP 19850890300 EP 85890300 A EP85890300 A EP 85890300A EP 0185009 B1 EP0185009 B1 EP 0185009B1
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
heat
capsule
capsule wall
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
Application number
EP19850890300
Other languages
German (de)
English (en)
Other versions
EP0185009A3 (en
EP0185009A2 (fr
Inventor
Franz Dr. Dipl.-Ing. Moser
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.)
Steyr Daimler Puch AG
Original Assignee
Steyr Daimler Puch AG
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 Steyr Daimler Puch AG filed Critical Steyr Daimler Puch AG
Publication of EP0185009A2 publication Critical patent/EP0185009A2/fr
Publication of EP0185009A3 publication Critical patent/EP0185009A3/de
Application granted granted Critical
Publication of EP0185009B1 publication Critical patent/EP0185009B1/fr
Expired 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00

Definitions

  • the invention relates to an internal combustion engine with a sound-insulating capsule enclosing it and forming a lubricating oil collecting space.
  • Capsules of this type so-called wet capsules, which are preferably made of sheet metal or light metal casting, form the closure of the lubricating oil chambers of the internal combustion engine to the outside, thus contain the lubricating oil sump and their walls are sprayed with oil on the inside.
  • capsules In internal combustion engines with a wet or dry capsule, that is to say only to reduce the noise emission, capsules often encounter difficulties in operation in that the heat accumulating in the capsule cannot be dissipated to a sufficient extent.
  • a cooling system for the cooling water and / or for the lubricating oil is required in all internal combustion engines, a cooler with a corresponding fan driven by the internal combustion engine itself or via an electric motor being generally provided. In order to save fuel and to limit the comparatively large space requirement for the cooling system, it is desirable to reduce it or to avoid it at all.
  • DE-A-3 335 983 describes an internal combustion engine in which the engine mount containing the directly structure-borne noise parts is connected to the crankcase via a plurality of structure-borne noise-isolating, force-transmitting elements, which in turn connects the engine mount to soundproof passages at both ends of the crankshaft and to encloses a long side of the cylinder head on all sides to form an oil-soaked capsule. No measures have been taken which favor starting the internal combustion engine after an extended interruption in operation.
  • the invention has for its object to remedy these shortcomings and to improve the internal combustion engine described at the outset so that the cooling system is reduced in size by simple means and more favorable conditions are achieved when starting after a long interruption in operation.
  • the invention solves this problem in that the capsule wall is at least partially formed by heat oil on the inside of the capsule wall, acted upon by spray oil, as a heat accumulator and by increasing the surface area (fins) as a heat exchanger.
  • This heat storage effect of the heat storage material can be increased if, according to the invention, the heat storage material is ribbed.
  • the capsule wall is provided with ribs in a manner known per se for enlarging the surface.
  • ribs can be arranged both on the outside of the capsule and on the inside, depending on whether they are to form the heat exchanger or to serve to enhance the heat storage effect.
  • Heat pipes have the property of enabling particularly intensive heat transport.
  • a further embodiment of the invention consists in that the heat pipes are acted upon directly or indirectly by the cooling water and / or by the lubricating oil, and on the other hand are connected to the capsule wall. It is thus possible for the cooling of the internal combustion engine to be carried out entirely by the capsule wall and for a separate water and / or oil cooler to be dispensed with. Finally, according to the invention, the area of the capsule designed as a heat exchanger is exposed to a cooling air flow, from which the wall areas serving as heat stores are removed. This makes it possible, on the one hand, to ensure sufficient cooling of the internal combustion engine and, on the other hand, to maintain the heat to be stored for the cooling and starting phases of the machine.
  • the design according to the invention not only results in the described thermal advantages, but also the noise-damping effect is increased and the ribs stiffen the capsule walls, which can bring about a further improvement in soundproofing.
  • the sound-absorbing capsule surrounding the internal combustion engine 1 consists of the central capsule part 2, the capsule cover or upper part 3 and the oil pan 4, since the capsule for the internal combustion engine 1 forms the lubricating oil collecting space.
  • One half of the capsule middle part 2 and the capsule lid or top part 3 is provided on the inside with a layer of heat-storing material 5.
  • a ceramic mass is an example of a heat-storing material.
  • the lubricating oil thrown around by the internal combustion engine 1 during its operation reaches the capsule walls and heats the storage material 5 there. When the machine is at a standstill, the heat in the heat storage material 5 is retained for a long time, so that the restarting of the machine is facilitated.
  • the other half of the capsule middle part 2 or capsule upper part 3 is provided with outer wall ribs 6 for surface enlargement, which serve to intensify the heat dissipation to the outside and thus form a heat exchanger.
  • the ribs 6 are exposed to the cooling air flow from a fan 7, which can serve, for example, at the same time as a fan for the water cooler 8 of the internal combustion engine 1.
  • the capsule half serving as a heat accumulator naturally has no outer ribs and is thus essentially removed from the cooling air flow of the fan 7.
  • heat pipes 9, indicated by dash-dotted lines, are provided to improve the heat transport from the hot parts of the internal combustion engine 1 to the capsule wall.
  • One of the heat pipes 9 takes the heat directly from the cooling water system and passes it on to the capsule half occupied by cooling fins 6. Therefore, the water cooler 8 can be made smaller.
  • the oil filter head 10 is also connected to the capsule wall via heat pipes 9, a heat pipe 9 leading to the wall area of the capsule lined with the heat storage material 5 and a heat pipe from the oil filter head 10 to the wall of the capsule half serving as a heat exchanger.
  • Particularly hot areas of the internal combustion engine 1, such as the cylinder head 11 or the exhaust line, can also be connected to the wall of one or the other capsule half.
  • a heat pipe 9 consists of a closed hollow body 12 formed of metal, which has a heating zone 13, a cooling zone 14 and a transport zone 15.
  • a wire mesh 16 with a capillary structure is arranged in the interior of the hollow body 12; the cavity is filled with a liquid serving as a heat transfer medium.
  • the heating zone 13 is arranged in that area of the internal combustion engine 1 from which heat is to be removed, whereas the cooling zone 14 is connected to the capsule wall.
  • the liquid heat transfer medium is evaporated, and steam flows through the capillary structure of the wire mesh 16 in the direction of the cooling zone 14, where it condenses and releases the heat again.
  • the condensate is transported back to the heating zone 13 by the suction effect of the capillaries.
  • the shape of the heat pipe 9 is arbitrary, and it is also possible to transport heat over relatively long distances.
  • the transport zone 15 is of course shielded from the environment with heat insulation material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Thermal Sciences (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (6)

1. Moteur à combustion interne avec une capsule enveloppante insonorisante, constituant un volume collecteur d'huile lubrifiante, caractérisé en ce que la paroi de la capsule est constituée au moins par régions en réservoir de chaleur par une matière (5) accumulant la chaleur exposée à l'huile de barbotage, appliquée à la face intérieure de la paroi de la capsule, et en échangeur de chaleur par développement superficiel (6).
2. Moteur à combustion interne selon la revendication 1, caractérisé en ce que la matière (5) accumulant la chaleur est nervurée.
3. Moteur à combustion interne selon la revendication 1, caractérisé en ce que la paroi de la capsule est prévue, de façon connue en soi, avec des nervures (6) pour le développement superficiel.
4. Moteur à combustion interne selon l'une des revendications 1 à 3, caractérisé en ce qu'un système à tubes d'échange de chaleur (9) connu en soi est placé entre des parties chaudes (10, 11) du moteur à combustion interne (1) et la paroi de la capsule.
5. Moteur à combustion interne selon la revendication 4, caractérisé en ce que les tubes d'échange de chaleur (9) sont d'une part alimentés, indirectement ou directement, en eau de refroidissement et/ou en huile de lubrification, et d'autre part, raccordés à la paroi de la capsule.
6. Moteur à combustion interne selon l'une des revendications 1 à 5, caractérisé en ce que la région (2, 3, 4) de la capsule constituée en échangeur de chaleur est soumise à un courant d'air de refroidissement auquel sont soustraites les régions de la paroi servant d'accumulateur de chaleur.
EP19850890300 1984-12-11 1985-12-03 Moteur à combustion interne avec une capsule insonorisante qui enferme celui-ci Expired EP0185009B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT391684 1984-12-11
AT3916/84 1984-12-11

Publications (3)

Publication Number Publication Date
EP0185009A2 EP0185009A2 (fr) 1986-06-18
EP0185009A3 EP0185009A3 (en) 1988-05-11
EP0185009B1 true EP0185009B1 (fr) 1989-10-04

Family

ID=3557180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850890300 Expired EP0185009B1 (fr) 1984-12-11 1985-12-03 Moteur à combustion interne avec une capsule insonorisante qui enferme celui-ci

Country Status (3)

Country Link
EP (1) EP0185009B1 (fr)
DE (1) DE3573450D1 (fr)
SU (1) SU1386037A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006632A1 (de) 2012-03-31 2013-10-02 Volkswagen Aktiengesellschaft Verfahren und System zur Wärmeübertragung für ein Fahrzeug

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011112313A1 (de) * 2011-09-01 2013-03-07 Man Truck & Bus Ag Akustisch bedämpftes Bauteil
DE102013222557A1 (de) * 2013-11-06 2015-05-07 MAHLE Behr GmbH & Co. KG Kühlmittelkreislauf eines Verbrennungsmotors

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168698B (de) * 1962-04-11 1964-04-23 Henschel Werke Ag Vorrichtung zum Warmhalten des Schmieroeles von Brennkraftmaschinen
DE2804833A1 (de) * 1977-02-24 1978-08-31 List Hans Geraeuscharmer verbrennungsmotor
IT1091239B (it) * 1977-09-27 1985-07-06 Fiat Veicoli Ind Tubo di calore per la riduzione di temperatura in zone termicamente sollecitate di macchine particolarmente di motori a combustione interna
DE2834089C2 (de) * 1978-08-03 1982-09-23 International Harvester Company Mbh, 4040 Neuss Brennkraftmaschine
DE2908735A1 (de) * 1979-03-06 1980-09-11 Daimler Benz Ag Zylinderblock und kurbelgehaeuse fuer eine fluessigkeitsgekuehlte brennkraftmaschine
DE3032090A1 (de) * 1980-08-26 1982-04-01 Günter Prof. Dr. Dr.-Ing. 7300 Esslingen Wößner Verfahren zur senkung des kraftstoffverbrauchs und der schadstoffemissionen durch verminderung der reibleistung eines verbrennungsmotors waehrend des warmlaufes (verkuerzung der warmlaufzeit) sowie eine vorrichtung zur durchfuehrung des verfahrens
AT394758B (de) * 1982-10-12 1992-06-25 List Hans Brennkraftmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006632A1 (de) 2012-03-31 2013-10-02 Volkswagen Aktiengesellschaft Verfahren und System zur Wärmeübertragung für ein Fahrzeug
WO2013143897A1 (fr) 2012-03-31 2013-10-03 Volkswagen Aktiengesellschaft Procédé et système de transfert thermique pour un véhicule
US10525793B2 (en) 2012-03-31 2020-01-07 Volkswagen Aktiengesellschaft Method and system for transmitting heat for a vehicle

Also Published As

Publication number Publication date
DE3573450D1 (en) 1989-11-09
EP0185009A3 (en) 1988-05-11
SU1386037A3 (ru) 1988-03-30
EP0185009A2 (fr) 1986-06-18

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