LV14491B - System for reducing fuel consumption in vehicles - Google Patents

Abstract

Invention refers to a system for reducing consumption of fuel, including means which improve forward motion of a vehicle due to an air flow, reducing fuel consumption, because there is no need for additional acceleration of a vehicle.Proposed system for reducing fuel consumption in vehicles is characterized in that behind the outlet 3 of tube like channel 1 it additionally comprises a spoiler 10 arranged parallel to a wall of rear part of a vehicle which is perpendicular to road surface or is inclined to it.

Description

DESCRIPTION OF THE INVENTION

The invention relates to a system for reducing fuel consumption, which comprises a means which increases the forward movement of the vehicle by reducing the fuel consumption of the air stream, since no additional vehicle acceleration is required.

Analysis of prior art

Typically, fuel consumption reduction systems are designed to reduce the aerodynamic drag caused by the vehicle's forward motion. Such systems include air baffles and flaps of various configurations. Such solutions are illustrated in Figures 1A and 1B. Other techniques for reducing fuel consumption include various mounting devices such as those shown in Figs. 1C.

U.S. Pat. European Patent EP-A-4,320,920 and EP-A-1 860 023 describe a tubular structure which covers the upper and / or lateral edges of the rear of the vehicle and draws air from its top as the vehicle moves forward and deflects it to the low pressure area. This system is depicted in Fig.lD and Fig.lE. It is known that bulky vehicles, such as towing vehicles and buses, have an air depression area at the rear which increases the aerodynamic drag and the air deflection in this area prevents the emergence of the drag area, thereby reducing the aerodynamic drag.

All of the above solutions reduce the aerodynamic drag to a greater or lesser extent, but do not add any additional force to help propel the vehicle forward.

Concise presentation of the technical problem and its solution

The object of the invention is to provide a system which not only reduces the aerodynamic drag, but also creates a driving force in the direction of the vehicle movement, thus reducing the need for the power required to propel the vehicle forward. In simple words, the driver has to apply less pressure on the accelerator pedal to move forward, resulting in reduced fuel consumption.

SUMMARY OF THE INVENTION This object is achieved by providing a system for reducing fuel consumption in a vehicle comprising a tubular duct arranged to cover the upper and / or lateral edge of the rear of the vehicle, wherein the tubular duct draws air from its upper by moving it to the low pressure area at the rear of the vehicle. In addition, the tubular passage further includes an inlet which draws air from the top as the vehicle moves forward, and an outlet directed downwards, directing the flow of air to the low pressure area at the rear. In addition, the inlet portion is smaller than the outlet portion to prevent high pressure. The proposed system for reducing fuel consumption in vehicles differs from the prior art in that it additionally contains a spoiler behind the outlet of the tubular duct, parallel to the rear wall of the vehicle, which is perpendicular or inclined. In addition, the spoiler is connected to the vehicle by means of mounts.

List of drawings

The following drawings illustrate the prior art:

Fig. 1A illustrates the prior art where a roof-mounted air deflector is used to reduce air drag;

Fig. 1B illustrates the prior art where shields are provided on the sides of a cargo semi-trailer to reduce air drag;

Fig. 1C illustrates the prior art where a conical attachment is placed at the rear of the semi-trailer to reduce air drag;

Fig. 1D shows a known state of the art, in order to reduce air resistance, tubular ducts 1 are directed to the rear of the vehicle to direct airflow into the air depression zone;

Fig. 1E illustrates the prior art, in order to reduce air resistance, tubular ducts 1 are directed at the rear of the vehicle to direct airflow X to air depression zone Z.

Detailed examples of the implementation of the Tzffudroum

The invention is further explained by the following drawings:

Fig. 2 is a view of the rear of the vehicle in which a spoiler 10 is disposed parallel to the rear of the vehicle in addition to the air duct 1;

Fig. 3 shows the arrangement of the air duct 1 and the spoiler 10 on the bus body;

- FIG. 4 is a close-up view of the system according to the invention;

Fig. 5 shows one embodiment of the system arrangement on the rear of the vehicle, where the rear door 5 is located; in this embodiment, the spoiler 10 is two-piece or has two spoilers 10;

Fig. 6 shows the arrangement of the system on the rear of the vehicle;

Fig. 7 shows a system layout where the spoilers 10 are positioned laterally as are the tubular channels 1.

It should be noted that various modifications of the invention which follow from the spirit and scope of the invention as defined in the claims are essentially equivalent to the invention, even without the use of the terms and mode of expression used in the description of the invention. Therefore, Figures 2 to 7 are illustrative rather than restrictive.

Claims (2)

A system for reducing fuel consumption in vehicles comprising a tubular duct (1) covering the upper and / or lateral edges of the rear of the vehicle, wherein the tubular duct (1) draws air into the top through an inlet (2) as the vehicle moves forward. and deflects downstream of the exhaust outlet (3) of the vehicle and directs the flow of air (X) to the low pressure area at the rear of the vehicle, characterized in that the exhaust system (3) behind the tubular channel (1) is additionally equipped with a spoiler (10) positioned parallel to or inclined to the rear wall of the vehicle perpendicular to the road surface. System according to claim 1, characterized in that the spoiler (10) is connected to the vehicle by means of fasteners (11).