GB2091413A

GB2091413A - Air ventation and extraction system for motor vehicles

Info

Publication number: GB2091413A
Application number: GB8101529A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1981-01-19
Filing date: 1981-01-19
Publication date: 1982-07-28
Also published as: GB2091413B

Abstract

A vehicle stale air extraction system includes ducting 2 positioned with the head lining of the roof and extending longitudinally close to the side body adjacent the door lines. An electric fan 3 draws air into the ducting through apertures near the seating position of each occupant to exhaust same into the boot 4 via aperture 5. <IMAGE>

Description

SPECIFICATION Air ventilation and extraction system for motor vehicles This invention relates to an air extraction or ventilation system for motor vehicles and is primarily concerned with a system for use in private motor cars whereby better extraction of internal air can be achieved than with known systems, especially where the vehicle is intended for use in hot climates or where more efficient extraction of internal air is required, for example when the occupants of the vehicle are smoking.

It is one of the objects of the present invention to provide a system which can be readily incorporated into existing vehicles as required without needing substantial modifications to the structure of the vehicle.

According to this invention a ventilation or extraction system for a vehicle comprises a ducting located within the roof or closely adjacent thereto with air intakes means communicating with the ducting and impelling means for drawing air in through the intakes and propelling same along the ducting for exhaust through a suitable aperture disposed in communication with the exterior of the vehicle.

Preferably the ducting will comprise a readily removable moulding which is adapted to be located longitudinally along the junction between the roof and side parts of the vehicle with suitable apertures being provided for intake of air at appropriately spaced locations within the passenger compartment. An electrical fan comprising the air propelling means is located within the ducting at a suitable point and this serves to propel air down the ducting to an exhaust which passes through the vehicle body to dispose of air externally.

The ducting may be plastics or metal and will be formed so as to be as intrusive as possible and is preferably located beneath the normal fabric or other head lining as used in the roof. Apertures will be provided in the ducting conveniently located close to positions of passenger seating so that adequate individual extraction of air from the location of each passenger can be obtained.

The arrangement may be integrated with the vehicle's heating and/or air conditioning system, or alternatively may be an independently operating arrangement.

The system provides for ready conversion of existing vehicles with the only external modification required being the provision of a suitable aperture or ducting to exhaust the air externally. This may be through the vehicle body, or alternatively the ducting can be run to a convenient point for exhaust.

The ducting may comprise tubing or the duct may be formed by sheathing in conjunction with existing parts of the vehicle structure. The air intakes may be constituted by perforated or louvred portions which could be made adjustable.

A single extractor fan may be provided conveniently installed on the rear parcel shelf of a vehicle and extraction of air can be through suitable orifices into the boot of the vehicle. It is preferred to position the intakes at least above the doors of the vehicle.

An embodiment according to the invention is shown by way of example only in the accompanying drawings, wherein: Figure 1 shows the side view of a motor vehicle incorporating the extractor means, Figure 2 shows a plan view, and Figure 3 is a section on BB of Figure 2.

As shown in the drawings, a saloon car 1 incorporates an extractor tube forming a duct 2 within the roof and running longitudinally above the door line of the vehicle. Air intakes are provided at suitable locations in the tube and the rearward end of the tube includes an electrically driven fan 3 serving to draw air in through the intakes and propels same along the tube to be fed into the boot 4 via suitable apertures 5.

The arrangement described does not require any structural alteration to the body of the vehicle and the tubing can generally be easily passed througli the parcel shelf, which in most instances is of a purely cosmetic construction. Not only does the arrangement provide for a rearward extraction of fumes, but in addition the air intakes can be positioned as convenient according to the vehicle construction and as best adapted to the internal air flow characteristics. The arrangement further obviates the disadvantage of known rear extraction systems wherein the whole of the air flow must pass from the front to the rear of the vehicle for extract with attendant discomfort to rear passengers. In the construction described extraction is at convenient points relating to each individual passenger.

1. A vehicle air extraction system comprising a ducting located within the roof of closely adjacent thereto with air intakes means communicating with the ducting and impelling means for drawing air in through the intakes and propelling same along the ducting for exhaust through a suitable aperture disposed in communication with the exterior of the vehicle.

2. A vehicle air extraction system as claimed in Claim 1, wherein the ducting comprises moulding which is adapted to be located longitudinally along the junction between the roof and side parts of the vehicle with suitable apertures being provided for intake of air at appropriately spaced locations within the passenger compartment.

3. A vehicle air extraction system as claimed in Claim 1 or 2, wherein an electrical fan comprising the air propelling means is located within the ducting at a suitable point to propel air down the ducting to an exhaust which passes through the vehicle body to dispose of air externally.

4. A vehicle air extraction system as claimed in any preceding claim, and including any one of the following features alone or in combination with any other feature: a) the ducting is of plastics or metal,

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Air ventilation and extraction system for motor vehicles This invention relates to an air extraction or ventilation system for motor vehicles and is primarily concerned with a system for use in private motor cars whereby better extraction of internal air can be achieved than with known systems, especially where the vehicle is intended for use in hot climates or where more efficient extraction of internal air is required, for example when the occupants of the vehicle are smoking. It is one of the objects of the present invention to provide a system which can be readily incorporated into existing vehicles as required without needing substantial modifications to the structure of the vehicle. According to this invention a ventilation or extraction system for a vehicle comprises a ducting located within the roof or closely adjacent thereto with air intakes means communicating with the ducting and impelling means for drawing air in through the intakes and propelling same along the ducting for exhaust through a suitable aperture disposed in communication with the exterior of the vehicle. Preferably the ducting will comprise a readily removable moulding which is adapted to be located longitudinally along the junction between the roof and side parts of the vehicle with suitable apertures being provided for intake of air at appropriately spaced locations within the passenger compartment. An electrical fan comprising the air propelling means is located within the ducting at a suitable point and this serves to propel air down the ducting to an exhaust which passes through the vehicle body to dispose of air externally. The ducting may be plastics or metal and will be formed so as to be as intrusive as possible and is preferably located beneath the normal fabric or other head lining as used in the roof. Apertures will be provided in the ducting conveniently located close to positions of passenger seating so that adequate individual extraction of air from the location of each passenger can be obtained. The arrangement may be integrated with the vehicle's heating and/or air conditioning system, or alternatively may be an independently operating arrangement. The system provides for ready conversion of existing vehicles with the only external modification required being the provision of a suitable aperture or ducting to exhaust the air externally. This may be through the vehicle body, or alternatively the ducting can be run to a convenient point for exhaust. The ducting may comprise tubing or the duct may be formed by sheathing in conjunction with existing parts of the vehicle structure. The air intakes may be constituted by perforated or louvred portions which could be made adjustable. A single extractor fan may be provided conveniently installed on the rear parcel shelf of a vehicle and extraction of air can be through suitable orifices into the boot of the vehicle. It is preferred to position the intakes at least above the doors of the vehicle. An embodiment according to the invention is shown by way of example only in the accompanying drawings, wherein: Figure 1 shows the side view of a motor vehicle incorporating the extractor means, Figure 2 shows a plan view, and Figure 3 is a section on BB of Figure 2. As shown in the drawings, a saloon car 1 incorporates an extractor tube forming a duct 2 within the roof and running longitudinally above the door line of the vehicle. Air intakes are provided at suitable locations in the tube and the rearward end of the tube includes an electrically driven fan 3 serving to draw air in through the intakes and propels same along the tube to be fed into the boot 4 via suitable apertures 5. The arrangement described does not require any structural alteration to the body of the vehicle and the tubing can generally be easily passed througli the parcel shelf, which in most instances is of a purely cosmetic construction. Not only does the arrangement provide for a rearward extraction of fumes, but in addition the air intakes can be positioned as convenient according to the vehicle construction and as best adapted to the internal air flow characteristics. The arrangement further obviates the disadvantage of known rear extraction systems wherein the whole of the air flow must pass from the front to the rear of the vehicle for extract with attendant discomfort to rear passengers. In the construction described extraction is at convenient points relating to each individual passenger. CLAIMS

4. A vehicle air extraction system as claimed in any preceding claim, and including any one of the following features alone or in combination with any other feature: a) the ducting is of plastics or metal, b) the ducting located beneath the normal trim of the vehicle interior, c) the ducting as apertures positioned close to the vehicle occupants seat positions, d) the ducting is integrated functionally with the vehicle heating, .ventilating or air conditioning system, e) the ducting is formed by existing parts of the vehicle structure, f) the extractor fan is located in the rear of the vehicle, g) the extractor fan exhausts into the vehicle boot (trunk), h) the air intakes associated with the ducting are positioned above the doors.

5. A vehicle extraction system substantially as herein described and as illustrated in the accompanying drawings.

6. A kit of parts for a vehicle extraction system according to any preceding claim.