DE3238211A1 - Accessories or integrated devices for vehicles of all kinds for utilising dynamic pressures occurring during driving for the purpose of producing thrust and cooling air - Google Patents

Accessories or integrated devices for vehicles of all kinds for utilising dynamic pressures occurring during driving for the purpose of producing thrust and cooling air

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Publication number
DE3238211A1
DE3238211A1 DE19823238211 DE3238211A DE3238211A1 DE 3238211 A1 DE3238211 A1 DE 3238211A1 DE 19823238211 DE19823238211 DE 19823238211 DE 3238211 A DE3238211 A DE 3238211A DE 3238211 A1 DE3238211 A1 DE 3238211A1
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Germany
Prior art keywords
thrust
accessories
vehicles
vehicle
leads
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.)
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Application number
DE19823238211
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German (de)
Inventor
Karl 3060 Stadthagen Bax
Wilfried 4950 Minden Reuter
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to DE19823238211 priority Critical patent/DE3238211A1/en
Publication of DE3238211A1 publication Critical patent/DE3238211A1/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D35/00Vehicle bodies characterised by streamlining

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Among the travelling resistances which counteract the main movement of a vehicle, the air resistance, particularly with rising travelling speeds, is of considerable importance since a considerable part of the power is required to overcome said air resistance. The object of the invention is to recover some of the expended power by means of aerodynamic measures. The dynamic pressure occurring is to be utilised by means of accessories or integrated devices on the vehicle. By means of an expedient design of the air inlets at the end side of the vehicles, flow-in speeds are to be initially achieved which are higher than the travelling speed. The accessories - designed as hollow bodies - widen towards the rear so that the reduction of the flow speed results in a pressure increase which leads to a thrust at the outlet opening. The invention is based on Bernoulli's equation. The production of thrust which leads to a fuel saving is accompanied by a cooling airstream which, in conjunction with the insulation of the hollow body, leads to a temperature reduction in the passenger compartment of the vehicle - in particular in the case of high external temperatures. The enclosed drawing represents the described processes in diagrammatic form. <IMAGE>

Description

B e s c h r e i b u n g Description

der Erfindung 1.) Technische Bezeichnung: Zusatzeinrichtungen oder integrierte Einrichtungen für Fahrzeuge aller Art zur Ausnutzung während der Fahrt auftretender StaudrUcke zum Zwecke der Schub und KüblluBterzeugung nachtr.of the invention 1.) Technical designation: Additional devices or integrated devices for vehicles of all kinds for the use of dynamic pressures occurring while driving for the purpose of Subsequent thrust and cool air generation

geändt. changed.

2.) Anwendungsgebiet: Die Erfindung betrifft eine Einrichtung, die mit Hilfe in Längsrichtung der Fahrzeuge sich befindender und sich nach hinten erweiternder Hohlkörper, die durch entsprechende Gestaltung der Ein- und Auslässe der Druckerhöhung der einströmenden Stauluft dienen, eine Schuberzeugung entgegen den Roll-und Luftwiderständen hervorruft.2.) Field of application: The invention relates to a device that with the help of the longitudinal direction of the vehicles and widening towards the rear Hollow body, which by appropriate design of the inlets and outlets of the pressure increase serve the inflowing ram air, a thrust generation against the roll and air resistance evokes.

3.) Zweck: Die Erfindung bezweckt die Ausnutzung des durch die Fahrbewegung auftretenden Staudrucks, um mittels der erzielten Schubkräfte den auftretenden Widerständen entgegenzuwirken und um damit zu einer Kraftstoffersparnis zu kommen. Gleichzeitig soll durch die gegenüber der Fahrzeuggeschwindigkeit erhöhte Luftgeschwindigkeit eine Kühlwirkung erzielt werden.3.) Purpose: The invention aims to utilize the vehicle movement occurring dynamic pressure in order to counteract the resistances by means of the thrust forces achieved to counteract and thus to achieve fuel savings. Simultaneously is due to the increased air speed compared to the vehicle speed a cooling effect can be achieved.

4.) Stand der Technik: Es sind keine Literaturhinweise und keine Anwendungsbeispiele für Fahrzeuge zu finden, wo unter Verwendung zweckentsprechender Zusatzteile oder integrierter Bauteile die vor den Fahrzeugen auftretende Stauluft zur Schub- und Kühllufterzeugung verwendet wird.4.) State of the art: There are no references or application examples for vehicles to be found where using appropriate additional parts or more integrated Components the ram air that occurs in front of the vehicles to generate thrust and cooling air is used.

5.) Kritik des heutigen Standes der Technik: Die mit erheblichem Aufwand an Primärenergie beim Fahren erzeugten Luftwiderstände werden bisher nicht ausgenutzt.5.) Criticism of the current state of the art: The one with considerable effort Air resistance generated by primary energy while driving has not yet been exploited.

6.) Aufgabe: Der Erfindung liegt die Aufgabe zugrunde, den auftretenden Staudruck durch aerodynamische Maßnahmen zur Schuberzeugung zu benutzen, um den Fahrwiderständen entgegenzuwirken und zu einer Kraftstoffersparnis zu kommen.6.) Task: The invention is based on the task of the occurring To use dynamic pressure through aerodynamic measures to generate thrust to the To counteract driving resistance and to save fuel.

7.) Lösung: Die vorstehende Aufgabe wird erfindungsgemäß dadurch gelöst, daß durch zweckentsprechende Gestaltung der Lufteinlässe zunächst eine Einströmgeschwindigkeit erzielt wird, die höher als die Fahrgeschwindigkeit ist. Durch den sich nach hinten erweiternden Hohlkörper wird die Geschwindigkeit stark herabgesetzt, so daß es zu einer Druckerhöhung kommt, die an der Austrittseröffnung einen Schub erzeugt.7.) Solution: The above object is achieved according to the invention by that by appropriate design of the air inlets initially an inflow velocity is achieved, which is higher than the driving speed. Through the back expanding hollow body, the speed is greatly reduced, so that it too a pressure increase comes, which generates a thrust at the outlet opening.

8.) Kennzeichnender Teil des Unteranspruchs: Da die Druckverhältnisse an den Stirnseiten verschiedener Fahrzeuge sehr unterschiedlich sind, mUssen entsprechend deren Gestaltung Formen gefunden werden, die teilweise auch Vorstufen zu der eigentlichen Zusatzeinrichtung erfordern. Um Turbulenzen an der Austrittsöffnung zu vermeiden, sind zur Erzielung günstiger Teilluftströme entsprechende Zusatzeinrichtungen zu verwenden.8.) Characteristic part of the dependent claim: Because the pressure conditions on the front sides of different vehicles are very different, must accordingly whose design forms are found, some of which are also preliminary stages to the actual Require additional equipment. To avoid turbulence at the outlet opening, are to use appropriate additional devices to achieve favorable partial air flows.

9.) Erzielbare Vorteile: Die durch die Fa4irbewegung auftretenden Luftwiderstände werden teilweise zur Erzeugung einer Schubkraft entgegengesetzt zur Fahrtrichtung benutzt, so daß es zu entsprechenden Kraftstoffverbrauchsminderungen kommt. Gleichzeitig kann ein Kühleffekt erzielt werden.9.) Achievable benefits: those arising from the movement Air resistance is partially opposed to generate a thrust force used for the direction of travel, so that there is corresponding fuel consumption reductions comes. At the same time, a cooling effect can be achieved.

10.) Beschreibung eines Ausführungsbeispiels: Als Beispiel werden die Ausführungsformen für Kraftfahrzeuge dargestellt: Figur 1 zeigt einen Kastenlieferwagen mit einer Zusatzeinrichtung zur Schuberzeugung, während die Figur 1 a eine gleichartige Einrichtung darstellt, die in das Fahrzeug integriert ist.10.) Description of an exemplary embodiment: As an example the embodiments for motor vehicles shown: Figure 1 shows a van with an additional device for generating thrust, while FIG. 1 a shows a similar one Represents device that is integrated into the vehicle.

Figur 2 stellt einen Pritschenwagen mit Plane und Spriegel dar. Hier ist es notwendig, auf dem Fahrerhausdach eine Leiteinrichtung anzubringen, die die Stauluft in Richtung auf die senkrecht angebrachten Hohlkörper umlenkt. Figure 2 shows a flatbed truck with a tarpaulin and bow. Here it is necessary to install a guiding device on the driver's cab roof that allows the Deflects ram air in the direction of the vertically attached hollow body.

Figur 3 zeigt einen Personenwagen mit einem Vorverdichter im Druckbereich vor der Windschuzzscheibe und eine Zusatzeinrichtung auf dem Dach. Figure 3 shows a passenger car with a supercharger in the pressure area in front of the windshield and an additional device on the roof.

Figur 4 stellt einen Hohlkörper mit einer Zusatzeinrichtung zur Erzielung eines Teilluftstromes dar. Durch die Zusatzdüsen können Verwirbelungen an der Austrittsöffnung beherrscht werden. Figure 4 shows a hollow body with an additional device for achieving a partial air flow. Through the additional nozzles can Turbulence can be controlled at the outlet opening.

Die Hohlkörperdurchströmung erfolgt nach der Bernoulli-Gleichung.The flow through the hollow body takes place according to the Bernoulli equation.

I Aus der Druckdifferenz zwischen Eintritts- und Austrittsöffnung - die mit einer Geschwindigkeitsverminderung einhergeht - und den Wirkflächen ergibt sigh eine auf das Fahrzeug wirkende Resultierende. I From the pressure difference between the inlet and outlet opening - which is accompanied by a reduction in speed - and results in the effective areas sigh is a resultant acting on the vehicle.

Die aerodynamischen Maßnahmen bringen also eine Vortriebskraft (von hinten auf das Fahrzeug wirkende Schubkraft).The aerodynamic measures bring a propulsive force (of thrust acting on the vehicle at the rear).

LeerseiteBlank page

Claims (1)

Patentansprüche: 1,usatzeinrichtungen und integrierte Einrichtungen für Fahrzeuge aller Art, die'hunter Ausnutzung der bei der Fahrbewegung auftretenden Staudrücke zur Schub- und Kühllutterzeugung dienen, dadurch gekennzeichnet, daß die Vorrichtungen in Form eines sich nach hinten erweiternden Hohlkörpers, der durch die Gestaltung seiner Eintrittsöffnung zu einer Geschwindigkeitserhöhung des Luftstromes gegenüber der Fahrzeuggeschwindigkeit und zur Geschwindigkeitsherabsetzung bei gleichzeitiger Druckerhöhung am Ende des Hohlkörpers führt, einen Schub und zugleich einen Kühlluftstrom hervorrufen. Claims: 1, additional devices and integrated devices for vehicles of all kinds that take advantage of those that occur during travel Back pressures are used to generate thrust and cooling air, characterized in that the devices in the form of a backward widening hollow body, which through the design of its inlet opening to increase the speed of the air flow compared to the vehicle speed and to reduce the speed at the same time Pressure increase at the end of the hollow body leads to a thrust and at the same time a flow of cooling air cause. keflBRGPFbEZki 2. Zweckentsprechende Gestaltung der Hohlkörper im Verhältnis zur individuellen Fahrzeuggestaltung, dadurch gekennzeichnet, daß neben der Schubvorrichtung auch Leiteinrichtungen oder Umlenkkprper neben zusätzlichen Staurohren zur Lenkung ton Teilluftströmen verwendet werden. keflBRGPFbEZki 2. Appropriate design of the hollow body in the Relation to the individual vehicle design, characterized in that next to the thrust device also guide devices or deflectors in addition to additional Pitot tubes are used to steer ton partial air flows.
DE19823238211 1982-10-15 1982-10-15 Accessories or integrated devices for vehicles of all kinds for utilising dynamic pressures occurring during driving for the purpose of producing thrust and cooling air Withdrawn DE3238211A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823238211 DE3238211A1 (en) 1982-10-15 1982-10-15 Accessories or integrated devices for vehicles of all kinds for utilising dynamic pressures occurring during driving for the purpose of producing thrust and cooling air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823238211 DE3238211A1 (en) 1982-10-15 1982-10-15 Accessories or integrated devices for vehicles of all kinds for utilising dynamic pressures occurring during driving for the purpose of producing thrust and cooling air

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DE3238211A1 true DE3238211A1 (en) 1984-04-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6877793B2 (en) * 2001-07-12 2005-04-12 George J. Cory Method and apparatus for reducing drag of blunt shaped vehicles
CN108016515A (en) * 2016-10-28 2018-05-11 通用汽车环球科技运作有限责任公司 Reconfigure the method and system of vehicle geometry

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6877793B2 (en) * 2001-07-12 2005-04-12 George J. Cory Method and apparatus for reducing drag of blunt shaped vehicles
CN108016515A (en) * 2016-10-28 2018-05-11 通用汽车环球科技运作有限责任公司 Reconfigure the method and system of vehicle geometry

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