[go: up one dir, main page]

DE29910797U1 - Rear bumper for motor vehicles - Google Patents

Rear bumper for motor vehicles

Info

Publication number
DE29910797U1
DE29910797U1 DE29910797U DE29910797U DE29910797U1 DE 29910797 U1 DE29910797 U1 DE 29910797U1 DE 29910797 U DE29910797 U DE 29910797U DE 29910797 U DE29910797 U DE 29910797U DE 29910797 U1 DE29910797 U1 DE 29910797U1
Authority
DE
Germany
Prior art keywords
air
bumper
rear bumper
vehicle
motor vehicles
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
DE29910797U
Other languages
German (de)
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.)
WALTER ECKARD
Original Assignee
WALTER ECKARD
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 WALTER ECKARD filed Critical WALTER ECKARD
Priority to DE29910797U priority Critical patent/DE29910797U1/en
Publication of DE29910797U1 publication Critical patent/DE29910797U1/en
Priority to DE20001089U priority patent/DE20001089U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D35/00Vehicle bodies characterised by streamlining
    • B62D35/007Rear spoilers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D35/00Vehicle bodies characterised by streamlining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D35/00Vehicle bodies characterised by streamlining
    • B62D35/02Streamlining the undersurfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D37/00Stabilising vehicle bodies without controlling suspension arrangements
    • B62D37/02Stabilising vehicle bodies without controlling suspension arrangements by aerodynamic means
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/82Elements for improving aerodynamics
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88Optimized components or subsystems, e.g. lighting, actively controlled glasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Description

Eckard Walter Belch<3Qsfrj57. fc^g Gebrauchsmuster- Anmefcfang 'Rückseitige'Stößstange für KFZEckard Walter Belch<3Qsfrj57. fc^g Utility model - Application 'Rear' bumper for motor vehicle

BeschreibungDescription Rückseitige Stoßstange für KFZRear bumper for car

Die Erfindung befasst sich mit dem Luftwiderstand eines bewegten Fahrzeuges. Der Luftwiderstand setzt sich im wesentlichen aus zwei Hauptteilen zusammen. Vorne muss die Luft geteilt werden und hinten entstehen Luftwirbel mit einhergehender Sogwirkung. Der Sog am Heck eines KFZ hat eine bedeutende Bremswirkung (Figur 1). Die Bemühungen der Fahrzeughersteller, den Luftwiderstand an den Frontseiten der Fahrzeuge zu reduzieren, sind bekannt. Ziel ist es, die Sogwirkung der rückwärtigen Luftwirbel zu reduzieren. An manchen Fahrzeugen sind Spoiler auf den Kofferraumdeckeln angebracht, welche aber sicher nicht der Energieeinsparung dienen.The invention deals with the air resistance of a moving vehicle. Air resistance essentially consists of two main parts. At the front, the air must be divided and at the rear, air vortices are created with an associated suction effect. The suction at the rear of a vehicle has a significant braking effect (Figure 1). The efforts of vehicle manufacturers to reduce air resistance at the front of vehicles are well known. The aim is to reduce the suction effect of the rear air vortices. Some vehicles have spoilers on the trunk lids, but these are certainly not designed to save energy.

Die Formgebung von Fahrzeugen kann nicht wesentlich verändert werden. Gestalterische Gründe verlangen ein praxisgerechtes Heck mit Kofferraum und Ladeluke. An den allgemein gebräuchlichen Fahrzeugen werden Luftwirbel unvermeidlich bleiben. Dies beruht auf einem physikalischen Grundgesetz und lässt sich in der Praxis nicht vermeiden. Mit der rückwärtigen Stoßstange gemäß Erfindung wird die Absicht verfolgt, den Sog zu verkleinern.The shape of vehicles cannot be changed significantly. Design reasons require a practical rear with a trunk and loading hatch. Air turbulence will remain unavoidable on commonly used vehicles. This is based on a fundamental law of physics and cannot be avoided in practice. The rear bumper according to the invention is intended to reduce the suction.

Die Erfindung beschreibt die hintere Stoßstange in der Form, dass sich eine konkrete Luftführung ergibt (Figur 2). Der Luftstrom unter dem Fahrzeug ist verdichtet. Dies wird durch die in der Abbildung eng gezeichneten Luft-Stromlinien gezeigt. Die Luftströmung entspannt sich am hinteren Ende des Fahrzeuges . Bei der herkömmlichen Konstruktion entstehen sofort die gezeigten Luftwirbel (Figur 1). Mit der neuen Konstruktion wird eine gelenkte Entspannung eingeleitet. Die gepresste Luft wird von der Luftlenk-Einrichtung der Stoßstange erfasst und strömungsgerecht nach oben geleitet (Figur 3). Die beschriebene Stoßstange ist in ihrem Mittelteil am unteren Rand, welcher in den Luftstrom hineinragt, strömungsgerecht verdickt. Die runde Form für die Kante ist hierfür die geeignetste. Vorlage für die Formgebung des Querschnitts (Figur 4) sind andere Profile, wie sie beim Flügel eines Flugzeuges oder Schaufelrad einer Turbine angewandt werden.The invention describes the rear bumper in such a way that a specific air flow is created (Figure 2). The air flow under the vehicle is compressed. This is shown by the closely drawn air flow lines in the illustration. The air flow relaxes at the rear end of the vehicle. With the conventional design, the air vortices shown (Figure 1) arise immediately. The new design initiates a controlled relaxation. The compressed air is captured by the air deflection device of the bumper and directed upwards in accordance with the flow (Figure 3). The bumper described is thickened in its middle section at the lower edge, which protrudes into the air flow, in accordance with the flow. The round shape for the edge is the most suitable for this. The template for the shape of the cross-section (Figure 4) are other profiles, such as those used on the wing of an aircraft or the impeller of a turbine.

Beschreib. Seite 1 -Description Page 1 -

Eckard Walter Belchenstr. 57 .Eckard Walter Belchenstr. 57.

Gebrauchsmuster- Anfneidutig Rückseitige* Stoßstange für KFZUtility model - Applicable rear bumper for vehicle

Die von der runden Unterkante erfasste Luftströmung wird an den glatten Innen- und Außenflächen der Stoßstange entlang nach oben geleitet. Dort wird die Luft je nach Ausführung an der oberen Kante oder aber auch an ein oder mehreren Auslassstellen wieder abgegeben. Der verdickte Teil der Stoßstange übernimmt die herkömmliche Aufgabe der Stoßabsorbtion beim Parken und Rangieren (Figur 4). An diesen Stellen können die krafteinleitenden Profile berücksichtigt werden. Die Auswahl der Materialien, deren Kombination, die Anordnung der Luftauslässe und Anpassung der Stoßstangenmodelle an die gegebenen KFZ-Typen bleibt den Detailplanungen vorbehalten. Folgende Ausführungsvarianten sind möglich: Stoßstange mit oberem, zentralen Luftauslass, Stoßstange mit Auslassöffnungen in der Fläche, über, neben oder unter dem Nummernschild sowie eine Kombinatiom aller Auslässe. Wenn das Nummerschild nicht auf der Stoßstange angebracht werden muss, kann die Stoßstage formschön mit einem Luftauslassgrill gestaltet werden (Figur 3).The air flow captured by the rounded lower edge is guided upwards along the smooth inner and outer surfaces of the bumper. Depending on the design, the air is then released again at the upper edge or at one or more outlet points. The thickened part of the bumper takes on the traditional task of absorbing shocks when parking and maneuvering (Figure 4). The force-introducing profiles can be taken into account at these points. The selection of materials, their combination, the arrangement of the air outlets and adaptation of the bumper models to the given vehicle types are reserved for the detailed planning. The following design variants are possible: bumper with upper, central air outlet, bumper with outlet openings in the surface, above, next to or below the license plate and a combination of all outlets. If the license plate does not have to be attached to the bumper, the bumper can be designed elegantly with an air outlet grill (Figure 3).

Der erforderliche Aufwand für eine Neukonstruktion ist gering. Eine Stoßstange gehört ohnehin zu den vorgeschriebenen Ausrüstungsteilen eines KFZs, so liegt es nahe, dieses Bauteil so auszubilden, dass es die beschriebene Aufgabe übernimmt.The effort required for a new design is minimal. A bumper is one of the mandatory equipment parts of a vehicle anyway, so it makes sense to design this component in such a way that it takes on the task described.

Eine Maßnahme, welche die Wirksamkeit der Erfindung unterstützt, ist die Ausbildung des Fahrzeugendes. Die hintere Kante des Kofferoder Laderaumes sollte glatt und strömungsgerecht nach oben führen. One measure that supports the effectiveness of the invention is the design of the vehicle's rear end. The rear edge of the trunk or loading area should lead upwards smoothly and in line with the flow.

Der Vorteil dieser Konstruktion ist der zu erwartende niedrigere Kraftstoffverbrauch je Kilometerleistung. Jeder noch so kleine Luftstrahl, der die Luftwirbel verkleinert (Vergleich Figur 1 und Figur 2) macht sich im Quadrat energiesparend bemerkbar. Wenn die Einwirkfläche der Luftwirbel auf 80% reduziert wird, verringert sich der durch sie verursachte Energieverlust auf 64%. Dementsprechend werden vom Fahrzeug kleinere Abgasmengen abgegeben und die Umweltbelastung wird geringer.The advantage of this design is the expected lower fuel consumption per kilometer. Every little jet of air that reduces the air vortex (compare Figure 1 and Figure 2) has a quadratic effect on energy savings. If the area of impact of the air vortex is reduced to 80%, the energy loss caused by it is reduced to 64%. Accordingly, the vehicle emits smaller quantities of exhaust gases and the environmental impact is reduced.

Beschreib. Seite 2 -Description Page 2 -

Claims (4)

1. Rückseitige Stoßstange für KFZ dadurch gekennzeichnet, dass sie in ihrem Mittelteil eine runde Unterkante und ein strömungsgünstiges Querschnittsprofil besitzt, mit der Rückseite des Fahrzeuges einen Luftkanal bildet und einen Teil des angeströmten Fahrtwindes nach oben in diesen Kanal leitet. 1. Rear bumper for motor vehicles, characterized in that it has a rounded lower edge and an aerodynamic cross-sectional profile in its middle section, forms an air duct with the rear of the vehicle and directs part of the airflow upwards into this duct. 2. Rückseitige Stoßstange für KFZ nach Anspruch 1, dadurch gekennzeichnet, dass sie in ihrem Mittelteil einen oder mehrere schräg nach oben gerichtete Luftkanäle besitzt, welche den Luftstrom zwischen Fahrzeugende und Stoßstange strömungsgerecht aufteilt und zu den Auslassstellen leitet. 2. Rear bumper for motor vehicles according to claim 1, characterized in that it has one or more obliquely upwardly directed air ducts in its central part, which divide the air flow between the end of the vehicle and the bumper in a flow-appropriate manner and directs it to the outlet points. 3. Rückseitige Stoßstange für KFZ nach Anspruch 1, dadurch gekennzeichnet, dass die Luftauslassöffnungen mit je einem formschönen Luftauslassgitter (Grill) versehen sind. 3. Rear bumper for a motor vehicle according to claim 1, characterized in that the air outlet openings are each provided with an attractive air outlet grille. 4. Rückseitige Stoßstange für KFZ nach Anspruch 1, dadurch gekennzeichnet, dass alle luftberührten Flächen in ihrem Mittelteil glatt ausgebildet sind. 4. Rear bumper for a motor vehicle according to claim 1, characterized in that all surfaces in contact with air are smooth in their central part.
DE29910797U 1999-06-22 1999-06-22 Rear bumper for motor vehicles Expired - Lifetime DE29910797U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29910797U DE29910797U1 (en) 1999-06-22 1999-06-22 Rear bumper for motor vehicles
DE20001089U DE20001089U1 (en) 1999-06-22 2000-01-22 Bumper for the rear of a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29910797U DE29910797U1 (en) 1999-06-22 1999-06-22 Rear bumper for motor vehicles

Publications (1)

Publication Number Publication Date
DE29910797U1 true DE29910797U1 (en) 1999-10-14

Family

ID=8075076

Family Applications (2)

Application Number Title Priority Date Filing Date
DE29910797U Expired - Lifetime DE29910797U1 (en) 1999-06-22 1999-06-22 Rear bumper for motor vehicles
DE20001089U Expired - Lifetime DE20001089U1 (en) 1999-06-22 2000-01-22 Bumper for the rear of a vehicle

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE20001089U Expired - Lifetime DE20001089U1 (en) 1999-06-22 2000-01-22 Bumper for the rear of a vehicle

Country Status (1)

Country Link
DE (2) DE29910797U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2403462B (en) * 2003-06-24 2007-07-04 John Edward Randell A land vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233041B4 (en) * 2002-07-20 2006-04-20 Daimlerchrysler Ag Rear end of a motor vehicle
DE102014016766A1 (en) 2014-11-13 2016-05-19 Daimler Ag Air guiding device for a motor vehicle, in particular a passenger car
CN106314574A (en) * 2015-06-24 2017-01-11 华晨汽车集团控股有限公司 Aerodynamic resistance reduction bumper

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2037942A (en) 1935-10-28 1936-04-21 Edward A Stalker Means of reducing the fluid resistance of propelled vehicles
FR916198A (en) 1944-10-28 1946-11-28 Mobile aerodynamic resistance reduction system
US2529995A (en) 1946-05-02 1950-11-14 Tatra Np Arrangement of mufflers and vehicle body chambers therefor
DE2212952A1 (en) 1972-03-17 1973-09-27 Messerschmitt Boelkow Blohm RAIL VEHICLE OR RAIL TRAIN, PREFERABLY FOR HIGH-SPEED RAILWAYS
DE3625814A1 (en) 1986-07-30 1988-02-18 Bayerische Motoren Werke Ag MOTOR VEHICLE, PARTICULARLY PERSONAL VEHICLES
DE19738008A1 (en) 1997-08-30 1998-02-19 Audi Ag Air spoiler for vehicle
DE29721562U1 (en) 1997-12-05 1998-02-19 Lechner, Anton, Dr., 85774 Unterföhring Vehicle with means for reducing the rear drag induced air resistance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2403462B (en) * 2003-06-24 2007-07-04 John Edward Randell A land vehicle

Also Published As

Publication number Publication date
DE20001089U1 (en) 2000-05-25

Similar Documents

Publication Publication Date Title
DE3617538C2 (en)
EP0711700B1 (en) Spoiler with engine air intakes
DE69613505T2 (en) Device for reducing the driving resistance of vehicles
EP1149761A1 (en) Noise damping device for aircraft wings
DE102010036440A1 (en) Cooling air duct for a motor vehicle
DE4319281A1 (en) Panel-shaped covering part and motor vehicle equipped therewith
DE102019209623B3 (en) Device for improving the aerodynamics of a commercial vehicle
DE102017201860A1 (en) Motor vehicle with a rear apron
EP3911557A1 (en) System for aerodynamically improving a land vehicle, in particular a truck or the like
DE10012905A1 (en) Roof rack for vehicle has streamlined device extending along transverse member
DE29910797U1 (en) Rear bumper for motor vehicles
DE102010008348A1 (en) Saloon of a passenger car
DE102014111074A1 (en) Air flow guide device for motor vehicles
DE29721562U1 (en) Vehicle with means for reducing the rear drag induced air resistance
DE1916638B2 (en) Ventilation device for motor vehicles
DE102016215032A1 (en) Air guiding device for a motor vehicle
AT524871B1 (en) Device for reducing drag on a land vehicle
EP3386831B1 (en) Railway traction vehicle with roof joint element
EP3543090A1 (en) Motor vehicle air guidance device
DE102007054824A1 (en) Combustion air supply device for motor vehicle i.e. sports car, has combustion air intake attached to adjustable air guiding element for adjustment of combustion air dynamic pressure produced by airflow
DE3704145C2 (en)
DE3934807C2 (en) Streamlined front fairing for a motor vehicle
DE102017128045A1 (en) lower nose section
DE2912612A1 (en) Air current deflector or spoiler on vehicle - uses two downward lifting aerofoils in bi-plane configuration with top one offset to rear
DE202011110282U1 (en) Construction for a commercial vehicle and equipped with such a structure commercial vehicle

Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19991118

R156 Lapse of ip right after 3 years

Effective date: 20021231