DE29910797U1 - Rear bumper for motor vehicles - Google Patents
Rear bumper for motor vehiclesInfo
- 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
Links
- 230000000694 effects Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/02—Streamlining the undersurfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D37/00—Stabilising vehicle bodies without controlling suspension arrangements
- B62D37/02—Stabilising vehicle bodies without controlling suspension arrangements by aerodynamic means
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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
- Y02T10/80—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)
- 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
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.
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.
Claims (4)
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)
| 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)
| 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)
| 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 |
-
1999
- 1999-06-22 DE DE29910797U patent/DE29910797U1/en not_active Expired - Lifetime
-
2000
- 2000-01-22 DE DE20001089U patent/DE20001089U1/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19991118 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 20021231 |