DE102011000062A1 - Device for supplying cool air over air inlet apertures to rear engine of motor car, has air inlet opening adjoining air gap and air-conductively connected between rear spoiler and rear blade of engine compartment grid - Google Patents
Device for supplying cool air over air inlet apertures to rear engine of motor car, has air inlet opening adjoining air gap and air-conductively connected between rear spoiler and rear blade of engine compartment grid Download PDFInfo
- Publication number
- DE102011000062A1 DE102011000062A1 DE102011000062A DE102011000062A DE102011000062A1 DE 102011000062 A1 DE102011000062 A1 DE 102011000062A1 DE 102011000062 A DE102011000062 A DE 102011000062A DE 102011000062 A DE102011000062 A DE 102011000062A DE 102011000062 A1 DE102011000062 A1 DE 102011000062A1
- Authority
- DE
- Germany
- Prior art keywords
- air
- engine compartment
- air inlet
- spoiler
- rear spoiler
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/007—Rear spoilers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
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- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0425—Air cooled heat exchangers
- F02B29/0431—Details or means to guide the ambient air to the heat exchanger, e.g. having a fan, flaps, a bypass or a special location in the engine compartment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K2005/006—Arrangement or mounting of internal-combustion or jet-propulsion units the internal combustion or jet propulsion unit is arranged behind the rear axle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Einrichtung zur Kühlluftzufuhr zu einem Heckmotor eines Kraftfahrzeugs nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for supplying cooling air to a rear engine of a motor vehicle according to the preamble of
Aus der
Aufgabe der Erfindung ist es, eine Einrichtung zur Kühlluftzufuhr zu einem Heckmotor eines Kraftfahrzeugs zu schaffen, bei welcher der durch den Heckspoiler erzeugte Luftdruckaufstau zur Verbesserung einer Motorraumbelüftung bzw. Motorraumkühlung genutzt werden kann.The object of the invention is to provide a device for supplying cooling air to a rear engine of a motor vehicle, in which the air pressure accumulation generated by the rear spoiler can be used to improve engine compartment ventilation or engine compartment cooling.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Merkmale beinhalten die Unteransprüche.This object is achieved by the features of
Die mit der Erfindung hauptsächlich erzielten Vorteile bestehen darin, dass bei in Wirkstellung ausgefahrenem Heckspoiler, ein Luftdruckaufstau, vorzugsweise bei hohen Fahrgeschwindigkeiten erzeugt wird. Dieser Luftdruckaufstau bewirkt eine aerodynamische Abtriebskraft auf die Hinterachse des Fahrzeugs und welcher zusätzlich zur Erzielung eines möglichst hohen Kühlmassenstroms in den Motorraum zur Kühlluftzufuhr zum Motor nutzbar gemacht wird. In der eingefahrenen Ruhestellung des Heckspoilers sind die Lufteintrittsöffnungen einem unterhalb des Motorraumgitters angeordnetem Motorspülgebläse zugerichtet. In der ausgefahrenen Wirkstellung des Heckspoilers sind zusätzlich zu den Lufteintrittsöffnungen im Motorraumgitter zwischen einer Spoilervorderkante und einer hinteren Kante des Motorraumgitters weitere stirnseitige Lufteintrittsöffnungen an der dem Heckspoiler zugewandten Stirnseite angeordnet, die mit einem anschließenden Luftspalt luftleitend verbunden sind, der zwischen dem Heckspoiler und einer hinteren Lamelle des Motorraumgitters verläuft und eine obere hintere Lufteintrittsöffnung im Motorraumgitter aufweist.The advantages achieved by the invention are that, when the rear spoiler is extended in the operative position, an accumulation of air pressure is generated, preferably at high driving speeds. This accumulation of air pressure causes an aerodynamic output force on the rear axle of the vehicle and which, in addition to achieving the highest possible cooling mass flow into the engine compartment, is made usable for supplying the cooling air to the engine. In the retracted rest position of the rear spoiler, the air inlet openings are trimmed to an arranged below the engine compartment grille engine scavenging fan. In the extended operative position of the rear spoiler, in addition to the air inlet openings in the engine compartment grille between a spoiler leading edge and a rear edge of the engine compartment grille further frontal air inlet openings are arranged on the end face facing the rear spoiler, which are air-conductively connected to a subsequent air gap, between the rear spoiler and a rear slat the engine compartment grille extends and has an upper rear air inlet opening in the engine compartment grille.
Ferner weist der in der Wirkstellung ausgefahrene Heckspoiler im Bereich der stromauf angeordneten Lufteintrittsöffnungen des Motorraumgitters eine Luftdruckerhöhung derart auf, dass ein Kühlmassenstrom durch die Lufteintrittsöffnungen sowie den Luftspalt und den stirnseitigen Luftöffnungen zwangsweise einem Motorraum zugeführt wird.Furthermore, the extended in the operative position rear spoiler in the region of the upstream air inlet openings of the engine compartment grille an air pressure increase such that a cooling mass flow through the air inlet openings and the air gap and the frontal air openings is forcibly fed to an engine compartment.
Durch den Luftdruckaufstau vor dem Heckspoiler wird Kühlluft in die Lufteintrittsöffnungen des Motorraumgitters und zusätzlich in die Stirnöffnungen und in den Schlitz zwischen dem Heckspoiler und der hinteren Lamelle des Motorraumgitters gepresst, um eine verbesserte Motorraumdurchströmung, insbesondere bei hohen Fahrgeschwindigkeiten zu nutzen. Durch den Druckaufstau wird die Kühlluft ausschließlich durch die Lufteintrittsöffnungen im Motorraumgitter dem Motorraum zugeführt und das Motorspülgebläse wird in diesem Fall nicht verwendet oder nur in einem geringen Maße.The air pressure accumulation in front of the rear spoiler, cooling air is forced into the air inlet openings of the engine compartment grille and in addition in the front openings and in the slot between the rear spoiler and the rear slat of the engine compartment grille to use an improved engine compartment flow, especially at high speeds. Due to the pressure build-up, the cooling air is supplied to the engine compartment exclusively through the air inlet openings in the engine compartment grille and the engine scavenging fan is not used in this case or only to a small extent.
Nach der Erfindung ist in vorteilhafter Weise vorgesehen, dass der Luftspalt zwischen der hinteren Lamelle des Motorraumgitters und der vorderen Stirnkante des Heckspoilers, unterhalb des Heckspoilers durch ein abwärts ausgerichteten und quer verlaufenden Schließelement nach hinten begrenzt ist. Der Luftspalt ist in einem Bereich eines maximalen Überdrucks angeordnet, so dass ein zusätzlicher Kühlmassenstrom in den Luftspalt eingeleitet werden kann ohne dass ein Abfluss von Kühlluft erfolgt, trotz des Luftüberdrucks.According to the invention, it is advantageously provided that the air gap between the rear louver of the engine compartment grille and the front end edge of the rear spoiler, below the rear spoiler is limited by a downward and transversely extending closing element to the rear. The air gap is arranged in a range of maximum overpressure, so that an additional cooling mass flow can be introduced into the air gap without an outflow of cooling air takes place, despite the air pressure.
Um sicher zu stellen, dass Kühlluft nicht abfließen kann, d. h. Leckagen minimierbar sind, ist nach der Erfindung des Weiteren vorgesehen, dass an einer unteren Kante der vorderen Stirnfläche des Heckspoilers eine dem Schließelement zugerichtete vorragende Dichtlippe vorgesehen ist, die unmittelbar benachbart oder anliegend zum Schließelement angeordnet ist und der Luftspalt nach hinten hin abgeschlossen und – in Bezug auf die Fahrtrichtung – eine hintere Luftleitfläche bildet. Diese Dichtlippe ist quer verlaufend am Heckspoiler angeordnet und begrenzt einen möglichen Luftspalt nach hinten hin.To ensure that cooling air can not drain, d. H. Leakages are minimized, is further provided according to the invention further that at a lower edge of the front end face of the rear spoiler a zurichtende the closing element zugerichtete projecting sealing lip is provided, which is disposed immediately adjacent or adjacent to the closing element and the air gap to the rear and closed - Reference to the direction of travel - forms a rear air duct. This sealing lip is arranged transversely to the rear spoiler and limits a possible air gap to the rear.
Ferner ist nach der Erfindung vorgesehen, dass der Luftspalt an der hinteren Lamelle des Motorraumgitters jeweils eine stirnseitige oben liegende Lufteintrittsöffnung für einen spaltförmigen ersten Luftleitkanal aufweist und die stirnseitige darunter angeordnete Lufteintrittsöffnung einen zweiten Luftkanal bildet. An die stirnseitigen Lufteintrittsöffnungen schließen sich die Luftleitkanäle an, wobei der oben liegende erste Luftleitkanal von der Unterfläche der hinteren Lamelle des Motorraumgitters und einem aufbauseitigen Leitelement und der unten liegende zweite Luftleitkanal von dem Leitelement und einen Trägerelement gebildet wird und welche eine direkte Luftzuführung zum Motorraum erlauben.It is further provided according to the invention that the air gap at the rear lamella of the engine compartment grille each having a frontal overhead air inlet opening for a slit-shaped first air duct and the front-side arranged below the air inlet opening forms a second air duct. At the frontal air inlet openings close to the air ducts, wherein the overhead first air duct formed by the lower surface of the rear lamella of the engine compartment grille and a body-side baffle and the lower second air duct of the guide element and a support member and which allow direct air supply to the engine compartment ,
Durch diese Anordnung der beiden stirnseitigen Lufteintrittsöffnungen und den daran anschließenden beiden Luftleitkanälen wird im Bereich eines Überdrucks vor der Spoilervorderkante eine gezielte zwangsgeführte Zuführung von Kühlluft zum Motorraum erzielt.This arrangement of the two end air inlet openings and the adjoining two air ducts is in the range of an overpressure in front of spoiler front edge a targeted positively guided supply of cooling air to the engine compartment achieved.
Der oben liegende erste Luftleitkanal weist ein an der Unterfläche der hinteren Lamelle angeordnetes vorstehendes Profilelement auf, das eine Luftumlenkfläche in Richtung zum Motorraum bildet. Somit kann die dem oberen Luftleitkanal zugeführte Kühlluft gezielt derart umgelenkt werden, dass der Luftstrom abwärts gerichtet dem Motorraum zuführbar ist.The overhead first air duct has a projecting profile element disposed on the lower surface of the rear sipe forming an air deflecting surface toward the engine room. Thus, the cooling air supplied to the upper air duct can be selectively deflected in such a way that the air flow directed downwards can be fed to the engine compartment.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben.An embodiment of the invention is illustrated in the drawings and will be described in more detail below.
Es zeigen:Show it:
Zur Kühlluftzufuhr zu einem Heckmotor eines Kraftfahrzeugs zur Erzielung einer Motorraumdurchströmung sind in einem Motorraumgitter
In der Ruhestellung
Der ausgefahrene Spoiler
Diese Luftdruckerhöhung P+ (
Der oben liegende erste Luftleitkanal
Der Luftspalt
An einer hinteren Kante
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19806610 A1 [0002] DE 19806610 A1 [0002]
- DE 102008036188 A1 [0002] DE 102008036188 A1 [0002]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102011000062A DE102011000062A1 (en) | 2011-01-10 | 2011-01-10 | Device for supplying cool air over air inlet apertures to rear engine of motor car, has air inlet opening adjoining air gap and air-conductively connected between rear spoiler and rear blade of engine compartment grid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011000062A DE102011000062A1 (en) | 2011-01-10 | 2011-01-10 | Device for supplying cool air over air inlet apertures to rear engine of motor car, has air inlet opening adjoining air gap and air-conductively connected between rear spoiler and rear blade of engine compartment grid |
Publications (1)
Publication Number | Publication Date |
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DE102011000062A1 true DE102011000062A1 (en) | 2012-07-12 |
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DE102011000062A Pending DE102011000062A1 (en) | 2011-01-10 | 2011-01-10 | Device for supplying cool air over air inlet apertures to rear engine of motor car, has air inlet opening adjoining air gap and air-conductively connected between rear spoiler and rear blade of engine compartment grid |
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DE (1) | DE102011000062A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017215522A1 (en) * | 2017-09-05 | 2019-03-07 | Audi Ag | System for cooling an aggregate |
US11274596B2 (en) | 2019-04-29 | 2022-03-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling air feeding apparatus for a motor vehicle |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3615584A1 (en) * | 1986-05-09 | 1987-11-12 | Porsche Ag | MOTOR VEHICLE, ESPECIALLY CARS |
DE3735185A1 (en) * | 1986-05-09 | 1989-05-03 | Porsche Ag | Motor vehicle, especially passenger car |
DE4009385A1 (en) * | 1990-03-23 | 1991-09-26 | Porsche Ag | MOTOR VEHICLE, ESPECIALLY A PASSENGER CAR, WITH AN AIR GUIDE ARRANGED IN THE REAR AREA |
DE19806610A1 (en) | 1998-02-18 | 1999-08-19 | Topline Automobiltechnik Gmbh | Device for cooling air charging of charge air cooler of motor vehicle's internal combustion engine |
US6505696B1 (en) * | 2001-03-05 | 2003-01-14 | Clemon P. Prevost | Radiator system for use on automobiles having rear engines |
DE102006041109A1 (en) * | 2006-09-01 | 2008-03-20 | Audi Ag | Vehicle e.g. sports motor vehicle, has movably arranged spoiler element coupled with exhaust element, which is provided for exhausting heat-loaded air space and is operatable based on movement of spoiler element |
DE102007061812A1 (en) * | 2007-12-20 | 2009-07-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle with a spoiler device |
DE102008036188A1 (en) | 2008-08-02 | 2010-02-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Vehicle body for a motor vehicle |
-
2011
- 2011-01-10 DE DE102011000062A patent/DE102011000062A1/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3615584A1 (en) * | 1986-05-09 | 1987-11-12 | Porsche Ag | MOTOR VEHICLE, ESPECIALLY CARS |
DE3735185A1 (en) * | 1986-05-09 | 1989-05-03 | Porsche Ag | Motor vehicle, especially passenger car |
DE4009385A1 (en) * | 1990-03-23 | 1991-09-26 | Porsche Ag | MOTOR VEHICLE, ESPECIALLY A PASSENGER CAR, WITH AN AIR GUIDE ARRANGED IN THE REAR AREA |
DE19806610A1 (en) | 1998-02-18 | 1999-08-19 | Topline Automobiltechnik Gmbh | Device for cooling air charging of charge air cooler of motor vehicle's internal combustion engine |
US6505696B1 (en) * | 2001-03-05 | 2003-01-14 | Clemon P. Prevost | Radiator system for use on automobiles having rear engines |
DE102006041109A1 (en) * | 2006-09-01 | 2008-03-20 | Audi Ag | Vehicle e.g. sports motor vehicle, has movably arranged spoiler element coupled with exhaust element, which is provided for exhausting heat-loaded air space and is operatable based on movement of spoiler element |
DE102007061812A1 (en) * | 2007-12-20 | 2009-07-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle with a spoiler device |
DE102008036188A1 (en) | 2008-08-02 | 2010-02-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Vehicle body for a motor vehicle |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017215522A1 (en) * | 2017-09-05 | 2019-03-07 | Audi Ag | System for cooling an aggregate |
US11274596B2 (en) | 2019-04-29 | 2022-03-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling air feeding apparatus for a motor vehicle |
DE102019110955B4 (en) | 2019-04-29 | 2022-08-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling air supply device for a motor vehicle |
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