EP3183442B1 - Luftkanal zur kühlung eines zubehörteils eines kraftfahrzeugs - Google Patents

Luftkanal zur kühlung eines zubehörteils eines kraftfahrzeugs Download PDF

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Publication number
EP3183442B1
EP3183442B1 EP15753387.8A EP15753387A EP3183442B1 EP 3183442 B1 EP3183442 B1 EP 3183442B1 EP 15753387 A EP15753387 A EP 15753387A EP 3183442 B1 EP3183442 B1 EP 3183442B1
Authority
EP
European Patent Office
Prior art keywords
air
duct
accessory
cooling
power train
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.)
Active
Application number
EP15753387.8A
Other languages
English (en)
French (fr)
Other versions
EP3183442A1 (de
Inventor
Jean-Louis Leronseur
Lucile BERNAZZANI
Sebastien RAGNEAU
Pascal Godard
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
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Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Publication of EP3183442A1 publication Critical patent/EP3183442A1/de
Application granted granted Critical
Publication of EP3183442B1 publication Critical patent/EP3183442B1/de
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Classifications

    • 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
    • F01P1/00—Air cooling
    • F01P1/06—Arrangements for cooling other engine or machine parts
    • 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
    • F01P1/00—Air cooling
    • F01P2001/005—Cooling engine rooms
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/12—Turbo charger

Definitions

  • the invention is in the field of motor vehicle accessory cooling. More particularly, the invention relates to crankcase cooling by convection.
  • the casing of the turbocharger is cooled by the cooling circuit of the heat engine.
  • This configuration is found, in particular, for turbochargers working over large compression ranges or multistage turbochargers.
  • This configuration requires having to dimension the cooling circuit accordingly, to provide hoses for the routing of the coolant and also the modes of management of the cooling of the turbocharger.
  • the document US2008 / 0142285 describes an air duct for collecting part of an outgoing air flow pulsed by a fan and which is intended to redirect it to an engine compartment.
  • the invention aims to overcome the problems below by providing a solution for cooling a turbocharger operating over a large compression range or comprising at least two compression stages.
  • the invention aims to allow the correct operation of the turbocharger, without degradation of its operation or its performance.
  • the engine compartment of the vehicle comprises, in addition to the internal combustion engine, a turbocharger, for example a turbocharger with at least two stages.
  • the compressor is arranged downstream of the internal combustion engine, according to the direction of air flow.
  • the turbocharger operates in an environment which is not very conducive to heat exchange.
  • the invention proposes a duct dedicated to the supply of air.
  • the duct 1 comprises an air inlet 3, an air outlet 5 and an intermediate section 7 extending from the air inlet 3 to the air outlet 5.
  • the air duct 1 makes it possible to guide of air to the turbocharger in order to cool it, this is particularly advantageous for complex powertrain (GMP) architectures and where space is limited, so these constraints do not allow air to flow optimally around GMP.
  • GMP complex powertrain
  • the air duct 1 comprises an air filter element 9 intended to cool the casing of the turbocharger.
  • the filter element 9 is a grid 11, the grid 11 is dimensioned to include holes having an area greater than 2cm 2 .
  • the grid 11 is dimensioned to include twelve holes of 3cm 2 each. This definition of sizing has the advantage of limiting the passage of particles of relatively large size.
  • the duct 1 captures and redirects the dynamic air flow which is obtained by the movement of the vehicle.
  • Duct 1 captures and redirects the dynamic air flow from the engine compartment or air located, that is to say flowing, at a level fairly close to the road, for example at a height of 210 mm to 280 mm.
  • the air inlet 3 is located approximately in this range of heights.
  • the air inlet 3 and the air outlet 5 comprise at least one opening through which circulates the air intended for cooling the accessory.
  • each opening can extend in a vertical plane.
  • the opening of the air inlet 3 extends in a plane perpendicular to that of the opening dedicated to the air outlet 5 so that the duct 1 reorients the collected air in order to direct it in the direction of the accessory to be cooled.
  • the air duct 3 is arranged on the engine such that its air inlet 3 is disposed in vertical projection outside the engine casing.
  • the dynamic air flow captured improves the cooling of the accessory by diffusing an air near the accessory to be cooled, here a turbocharger.
  • the dynamic air flow can allow particles located on the road which, through the pressure, the speed and the dynamic pressure, go up the air duct 1 to arrive on the housing of the turbocharger. Except when the turbocharger is operating at full load, the temperature of the crankcase exceeds a hundred degrees. This high temperature can melt the particles on the casing of the turbocharger and thus degrade the heat exchanges between the casing of the turbocharger and the air supplied by the air duct 1. The reduction in heat exchanges can lead to a degradation of the performance of the turbocharger or even lead to its breakage.
  • the previously described grid 11 is located at the inlet of the air duct 1, in order to limit the introduction of particles as early as possible.
  • the air duct 1 is fixed to a substantially vertical wall of the engine casing and for this purpose comprises fixing means 13. Once the air duct 1 is fixed to the crankcase the air inlet and outlet 5 are located at different levels. In the embodiment shown in figures 1 , 2 and 4 , the inlet of duct 1 is located lower than the outlet.
  • the air inlet 3 and the air outlet 5 may be located at the same level, that is to say both extend in the same horizontal plane parallel to the ground, in which the turbocharger is also partly located.
  • the air duct 1 is formed from two half-shells 15, 17 made of composite materials, for example of the fiberglass type.
  • the first half-shell 15 comprises the air outlet 5 and the second half-shell 17 comprises the air inlet 3 as well as the grille 11.
  • the two half-shells 15, 17 each have substantially identical sidewalks 19 and located opposite each other once the half-shells 15, 17 have been assembled together.
  • the sidewalks are intended to fix the two half-shells 15, 17 together by vibration welding (friction).
  • the sidewalks 19 are not continuous, that is to say there is an interruption to be able to take account of the architectural environment, for example a pebble (not shown) which would be near conduit 1.
  • the invention finds its particular application for a heat engine accessory, in particular turbochargers with at least two stages.
  • the arrangement of the air duct 1 on the engine crankcase allows cooling air to be diffused in the immediate vicinity of the accessory to be cooled.
  • this calorie-generating accessory can be an electric machine requiring additional cooling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Claims (7)

  1. Kraftfahrzeugantriebsstrang, aufweisend ein Gehäuse eines Motors, ein Zubehörteil und einen Kanal (1) für Luft zum Kühlen des Zubehörteils, wobei der Kanal (1) einen Lufteingang (3), einen Luftausgang (5) und einen den Eingang mit dem Ausgang verbindenden Abschnitt (7) aufweist,
    wobei der Kanal (1) dadurch gekennzeichnet ist, dass er ein Element (9) zum Filtern der zum Kühlen des Zubehörteils bestimmten Luft aufweist, wobei das Filterelement (9) auf der Höhe des Eingangs (3) des Luftkanals (1) angeordnet ist, die zwei Halbschalen (15, 17) aufweist, wobei eine erste Halbschale (15) den Luftausgang (5) aufweist und eine zweite Halbschale (17) den Lufteingang (3) sowie ein Gitter (11) aufweist.
  2. Antriebsstrang nach Anspruch 1, dadurch gekennzeichnet, dass er Mittel (13) zum Befestigen des Kanals (1) an dem Gehäuse eines Motors des Kraftfahrzeugs aufweist.
  3. Antriebsstrang nach Anspruch 2, dadurch gekennzeichnet, dass der Lufteingang (3) und der Luftausgang (5) auf unterschiedlicher Höhe angeordnet sind, wenn der Luftkanal (1) an dem Motorgehäuse befestigt ist.
  4. Antriebsstrang nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Lufteingang (3) des Kanals (1) weiter unten als der Ausgang angeordnet ist, wenn der Luftkanal (1) an dem Motorgehäuse befestigt ist.
  5. Antriebsstrang nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die erste Halbschale (15) dazu bestimmt ist, die Befestigungsmittel (13) zu tragen.
  6. Antriebsstrang nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Gitter (11) so bemessen ist, dass es Löcher mit einer Fläche von mehr als 2 cm2 aufweist.
  7. Antriebsstrang nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Zubehörteil ein Turboverdichter mit mindestens zwei Stufen ist.
EP15753387.8A 2014-08-19 2015-07-02 Luftkanal zur kühlung eines zubehörteils eines kraftfahrzeugs Active EP3183442B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1457880A FR3025002B1 (fr) 2014-08-19 2014-08-19 Conduit d'air pour le refroidissement d'un accessoire de vehicule automobile
PCT/FR2015/051823 WO2016027014A1 (fr) 2014-08-19 2015-07-02 Conduit d'air pour le refroidissement d'un accessoire de véhicule automobile

Publications (2)

Publication Number Publication Date
EP3183442A1 EP3183442A1 (de) 2017-06-28
EP3183442B1 true EP3183442B1 (de) 2021-02-03

Family

ID=52003973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15753387.8A Active EP3183442B1 (de) 2014-08-19 2015-07-02 Luftkanal zur kühlung eines zubehörteils eines kraftfahrzeugs

Country Status (3)

Country Link
EP (1) EP3183442B1 (de)
FR (1) FR3025002B1 (de)
WO (1) WO2016027014A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11981195B2 (en) 2021-03-22 2024-05-14 Honda Motor Co., Ltd. Duct surface heat exchanger for vehicles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8427918U1 (de) * 1984-09-22 1984-12-13 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Zuluftkanal fuer einen ladeluftkuehler
IT1308459B1 (it) * 1999-04-27 2001-12-17 Iveco Fiat Motore a combustione interna sovralimentato
US20080142285A1 (en) * 2006-12-18 2008-06-19 Caterpillar Inc. Airflow redirector
DE102007049770A1 (de) * 2007-10-17 2009-04-23 Agco Gmbh Kühlanordnung für ein Nutzfahrzeug
KR101231539B1 (ko) * 2011-03-10 2013-02-07 기아자동차주식회사 주행풍유도덕트 및 이를 적용한 엔진룸구조

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3183442A1 (de) 2017-06-28
FR3025002A1 (fr) 2016-02-26
WO2016027014A1 (fr) 2016-02-25
FR3025002B1 (fr) 2019-07-12

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