Rear bodywork for a single-track motor vehicle, and single-track motor vehicle having the rear bodywork
Patent Information
- Application Number
- EP2023728059
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-06-14
- Filing Date
- 2023-05-24
- Publication Date
- 2025-04-23
AI Technical Summary
Single-track motor vehicles experience negative pressure around and above the rear wheel, leading to dirt and water splashing onto the driver's thighs, especially when driving in rain or on dirty roads, due to the design of the rear panel which fails to effectively manage airflow and dirt protection.
A rear panel with longitudinal extensions and recesses forming airflow channels, combined with air guide elements and a perforated structure, directs targeted airflow to reduce negative pressure and prevent dirt from reaching the driver, optimizing aerodynamics and dirt protection.
The solution effectively reduces negative pressure and prevents dirt from splashing onto the driver, enhancing cleanliness and aerodynamic performance by directing airflow and using angled projections to deflect dirt.
Smart Images
Figure 1.1
Abstract
Description
[0001] Rear fairing for a single-track motor vehicle and single-track motor vehicle with the rear fairing
[0002] Description:
[0003] The invention relates to a rear fairing for a single-track motor vehicle and a single-track motor vehicle with a rear wheel and the rear fairing.
[0004] The rear fairing of a single-track vehicle is usually designed in such a way that, in addition to meeting design requirements, the components inside the vehicle are also covered. This creates a certain overall width which, while intended to block direct dirt from the usually very free-standing rear wheel, also increases negative pressure in the area around and above the rear wheel. In addition, when driving in the rain and / or on dirty roads, a cloud of spray is created in the rear of single-track vehicles, which is stirred up by the rear wheel and thus soils the rear and particularly the underside of the driver's thighs. This effect is amplified by the negative pressure in this area, as the stirred up water is sucked into the low-pressure areas during ferry operation.
[0005] It is therefore an object of the present invention to provide a rear fairing for a single-track motor vehicle which at least reduces or eliminates the negative pressure in the area around and above the rear wheel.
[0006] This problem is solved by the combination of features according to patent claim 1.
[0007] According to the invention, a rear fairing for a single-track motor vehicle is proposed, having a longitudinal extension and at least one recess. The at least one recess is designed to form a flow channel for an air flow. This is advantageous in that a targeted air flow can be generated by means of the rear fairing.
[0008] In an advantageous embodiment, the recess extends at least partially along the longitudinal extent of the rear panel. This allows the air flow to be directed along the longitudinal extent of the rear panel.
[0009] Preferably, the rear panel is designed such that a further recess is formed, wherein the further recess is designed such that a further flow channel for an air flow is formed. Furthermore, a design is favorable in which the further recess extends at least partially along the longitudinal extent of the rear panel.
[0010] In a preferred embodiment of the invention, the recesses are arranged diametrically opposite one another in an end region of a transverse extension of the rear fairing. This allows a targeted airflow to be generated on both sides of the rear fairing, which, on the one hand, allows for an increased airflow volume and, on the other hand, optimizes the aerodynamic properties of the single-track vehicle.
[0011] In a further advantageous variant, the invention provides that at least one air guide element is formed in the at least one recess, which extends at least partially along the recess. It is advantageous that the at least one air guide element optimizes the flow in the flow channel. Furthermore, the at least one air guide element forms a separator, which prevents dirt from being thrown directly onto the driver's thigh through the flow channel. In an alternative variant, the at least one air guide element extends beyond the recess.
[0012] It is further advantageous if a plurality of parallel air guide elements are formed, which are arranged at equal distances from one another in the corresponding recess. In one embodiment of the invention, it is provided that the at least one air guide element extends essentially in a straight line. This improves the separator function, since the flow channel is better protected from dirt accumulation by the flow channel.
[0013] Alternatively, the air guide elements are arranged at different angles to each other. In an advantageous embodiment, an angled projection is formed at at least one end of a longitudinal extension of the at least one air guide element. The advantage of this is that the angled projection better prevents dirt from accumulating, and the dirt drips off the projection.
[0014] In one embodiment, the rear fairing according to the invention is designed such that the at least one air guide element is arranged at a predetermined angle to the longitudinal extent of the rear fairing. As a result, the at least one air guide element is optimally aligned with respect to dirt accumulation.
[0015] In an alternative embodiment of the present rear panel, it is further provided that the at least one air guide element (6) has a decreasing cross-section. This advantageously improves the flow characteristics of the air guide element.
[0016] In a further advantageous variant, at least one air-permeable grille is arranged on or in the corresponding recess, in particular in front of the at least one air guide element in the direction of air flow. Alternatively to the grille, a perforated structure is arranged in the recess or at an opening in the recess. This optimizes protection against dirt, especially against large drops of dirt.
[0017] In one embodiment of the invention, at least one airflow guide element is arranged on the corresponding flow channel. This improves the alignment of the targeted airflow.
[0018] According to the invention, a single-track motor vehicle with a rear wheel and a rear fairing according to the above disclosure is further proposed. The corresponding flow channel is designed such that the air flow can be directed into an area between the rear wheel and the rear fairing. This is advantageous in that a targeted air flow can be directed into the negative pressure area between the rear fairing and the rear wheel in order to reduce this pressure. This improves protection against dirt. In particular, the at least one air guide element is arranged at a predetermined angle to the longitudinal extent of the rear fairing such that splash protection for dirt and / or water thrown off the rear wheel or rain on the road is optimized due to the reduction in negative pressure.
[0019] The features disclosed above can be combined as desired, as long as this is technically possible and they do not contradict each other.
[0020] Other advantageous developments of the invention are characterized in the subclaims or are presented in more detail below, together with the description of the preferred embodiment of the invention, with reference to the figures. They show:
[0021] Fig. 1 is a perspective view of a single-track motor vehicle with a rear wheel and a rear fairing;
[0022] Fig. 2 is a perspective view of the rear fairing;
[0023] Fig. 3a a front view of the rear fairing;
[0024] Fig. 3b a rear view of the rear fairing and
[0025] Fig. 4 a sectional view of the rear panel.
[0026] The figures are schematic examples. Like reference numerals in the figures indicate like functional and / or structural features. Figure 1 shows a perspective view of a single-track motor vehicle with a rear wheel and a rear fairing. The single-track motor vehicle 10 comprises a rear wheel 11 and a rear fairing 1 with a recess 2, which is designed to form a flow channel 3 for an air flow. The corresponding flow channel 3 is designed such that the air flow can be directed into an area between the rear wheel 11 and the rear fairing 1.
[0027] Figure 2 shows a perspective view of the rear panel 1 shown in Figure 1. The rear panel 1, with a longitudinal extension, includes a recess 2 configured to form a flow channel 3 for air flow. The recess 2 extends at least partially along the longitudinal extension of the rear panel 1.
[0028] Furthermore, a further recess 4 is designed to form a further flow channel 5 for air flow. The further recess 4 extends at least partially along the longitudinal extent of the rear panel 1. Furthermore, four air guide elements 6 are arranged in the respective recesses 2, 4.
[0029] Figure 3a shows a front view of the rear fairing 1 and Figure 3b shows a rear view of the rear fairing 1. The recesses 2, 4 are each arranged diametrically opposite one another in an end region of a transverse extension of the rear fairing 1. Furthermore, four parallel air guide elements 6 are formed, which are arranged at equal distances from one another in the corresponding recess 2, 4. The respective air guide element 6 extends sectionally along the recess. Furthermore, the air guide elements 6 are arranged at a predetermined angle to the longitudinal extension of the rear fairing 1 and to the rear wheel 11. An angled projection 7 is formed at one end of a longitudinal extension of the respective air guide element 6. Figure 4 shows a sectional view of the rear fairing 1 shown in the preceding figures. The air guide elements 6 have a decreasing cross-section.Furthermore, the air guiding elements 6 extend essentially in a straight line. The invention is not limited in its implementation to the preferred embodiments described above. Rather, a number of variants are conceivable, which also utilize the presented solution in fundamentally different designs.
Claims
Claims: Rear fairing (1) for a single-track motor vehicle with a longitudinal extent and at least one recess (2), wherein the at least one recess (2) is configured such that a flow channel (3) for an airflow is formed. Rear fairing (1) according to claim 1, wherein the recess (2) extends at least section by section along the longitudinal extent of the rear fairing (1). Rear fairing (1) according to claim 1 or 2, wherein a further recess (4) is formed, wherein the further recess (4) is configured such that a further flow channel (5) for an airflow is formed. Rear fairing (1) according to claim 3, wherein the further recess (4) extends at least section by section along the longitudinal extent of the rear fairing (1).Rear fairing according to claims 2 and 4, wherein the recesses (2, 4) are arranged diametrically opposite each other in an end region of a transverse extension of the rear fairing (1). Rear fairing (1) according to any one of the preceding claims, wherein at least one air guide element (6) is formed in the at least one recess (2, 4), which extends at least sectionally along the recess. Rear fairing (1) according to claim 6, wherein a plurality of parallel air guide elements (6) are formed, which are arranged at uniform intervals from one another in the respective recess (2, 4). Rear fairing (1) according to one of claims 6 or 7, wherein the at least one air guide element (6) extends substantially in a straight line. Rear fairing (1) according to one of claims 6 to 8, wherein an angled projection (7) is formed at at least one end of a longitudinal extension of the at least one air guide element (6). Rear fairing (1) according to one of claims 6 to 9, wherein the at least one air guide element (6) is arranged at a predetermined angle to the longitudinal extension of the rear fairing (1). Rear fairing (1) according to one of claims 6 to 10, wherein the at least one air guide element (6) has a decreasing cross-section. Rear fairing (1) according to one of the preceding claims, wherein at least one air-permeable grille (8) is arranged on or in the corresponding recess (2, 4).Rear fairing (1) according to one of the preceding claims, wherein at least one guide element (9) for the airflow is arranged on the corresponding flow channel (3, 5). Single-track motor vehicle (10) with a rear wheel (11) and a rear fairing (1) according to one of the preceding claims, wherein the corresponding flow channel (3, 5) is designed such that the airflow can be directed into an area between the rear wheel (11) and the rear fairing (1).