JPS59114109A - Method of ventilating compartment of automobile, into ventilation system thereof noxious substance separating filer is incorporated - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION It is known to provide the interior of an automobile with a ventilation system that introduces outside air through a chemical adsorption filter. This ventilation system removes hydrocarbon compounds, CO and HO compounds, SO2, etc. before outside air enters the vehicle interior, especially during traffic jams.
Harmful substances such as 1F and other acidic components are separated and removed within the filter.

Some cars are equipped with air conditioners for ventilation, but many are not.

In the case of an air conditioner, the fresh air intake valve is closed to the desired degree, so that only a portion of it is introduced into the vehicle interior.

In order to configure the ventilation system, especially within the range of the window glass, so as not to fog the window glass, it is necessary to introduce a relatively large amount of air into the interior of the car, that is, several hundred m3/h depending on the size of the car. It is.

According to an air conditioner, for example, 50 m3/h to 1oo
A predetermined amount of air of m/h is supplied to the interior of the vehicle as fresh air in a circulating manner.

Regardless of the presence or absence of an air conditioning system, a harmful substance separation filter device suitable for the ventilation system of existing automobiles purifies the amount of air necessary for supplying fresh air to the interior of the car, and at the same time, it purifies the maximum amount of air in the ventilation system. In order to provide a filter device that does not impede the air guidance with the ventilation force, the invention proposes to integrate the filter device into the ventilation system in accordance with the structure defined in claim 1.

The invention will now be explained in detail according to the embodiment shown in the drawings: Reference numeral 1 denotes the partial amount of air sucked in from the outside, for example from 30 m<3>/h to 10 m/h, depending on the size of the vehicle. Reference numeral 2 is a butterfly valve for adjusting this partial air amount. Reference numeral 3 designates a supply conduit for conducting a partial air quantity to a chemisorption filter device arranged according to the invention in the trunk compartment. Reference numeral 4 denotes a butterfly valve for regulating the air inside the vehicle, and according to the present invention, when the outside air is extremely cold, this outside air is mixed with a partial air amount from inside the vehicle interior, and therefore the air is not supplied to the filter device. A suitable amount of warm air is sent. Reference numeral 5 indicates air from inside the vehicle interior, reference numerals 6 to 6 indicate fans in the chemical adsorption filter, and reference numeral 7 indicates a chemical adsorption filter device disposed in the trunk compartment, particularly below the rear shelf. Reference numeral 8 designates the clean air that has passed through the filter device 7 and is introduced into the vehicle interior through a corresponding opening, in particular in the area of the rear shelf.

Reference numeral 9 denotes external air drawn in for normal ventilation when the filter device 7 is not in operation, and this external air ventilates the passenger compartment in the usual manner when the filter device 7 is shut off. Reference numeral 10 is a butterfly valve for adjusting the amount of external air 9 sucked in from the outside for normal ventilation. Reference numeral 11 is a bow-shaped valve arranged according to the present invention to regulate the internal air sucked into the vehicle, and when fresh air from the outside is cut off and the filter device 7 is activated, the indoor air is returned to the normal state. Inhale through the ventilation system and provide necessary ventilation in the window area. This butterfly valve 11 is advantageously arranged below the instrument panel area. Reference numeral 12 is a conventional ventilation fan that is installed in any automobile. Reference numeral 13 is the blowing air controlled by the butterfly valve 10, ie, the external air intake, or the butterfly valve, 111, the indoor air intake. code 1
4 is a controller provided according to the present invention, particularly a sensor type controller. This sensor-type controller 14 cuts off the external air supply with a butterfly valve in the presence of a certain amount of harmful substances, and ensures only fresh air supply through the chemisorption filter device, in which case ventilation inside the passenger compartment is optional. This can be done conventionally using existing ventilation fans and ventilation systems.

In this case, it does not matter whether the car is equipped with an air conditioner or not. In motor vehicles equipped with an air conditioner, a partial air quantity 1 from the outside is sucked in immediately after the air conditioner, and the rest of the ventilation system works in the manner described according to the invention.

The present invention is not limited to the embodiments described above. The basic idea of the invention is to control the external air supply via one detector 14, in particular during traffic jams or smog conditions, and to guide only a partial air quantity through one chemisorption filter device. However, various changes have been made within the basic idea of mixing this partial air volume with a corresponding amount of warm air or cooling air in the vehicle interior, purifying it through a chemical adsorption filter device, and supplying it again to the vehicle interior. Aspects are possible.

The butterfly valve 4 may be omitted depending on the configuration of the air conditioner.

According to the invention, the sensor-type controller 14 has one reference constant,
For example, it is possible to adjust the ventilation circuit of a motor vehicle within a certain average workplace environment concentration value range by means of a CO command, so that only a partial air quantity 1 is supplied directly from the outside or via an air conditioner to the filter device 7. As the concentration of harmful substances decreases, the introduction into the filter device 7 is cut off and fresh external air 9 is introduced. In this case, in a vehicle equipped with an air conditioner, the partial air quantity 1 is connected to the outlet side of the air conditioner.

The measuring device for hazardous substances, in particular the sensor-type controller 14, also causes the opening of the butterfly valve 11 in order to draw in a corresponding amount of cabin air. In this case, the butterfly valve 11 supplies a quantity of air for the window area as well as the foot area via the known ventilation fan 12, depending on the adjustment of this ventilation fan.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing the air flow of the ventilation system of the present invention in an automobile, and FIG. 2 is a side view of the same. 1... Partial amount of air sucked in from the outside, 2... Butterfly valve for partial air amount, 3... Supply conduit, 4...
Butterfly valve for air taken in at the rear of the vehicle, 5...
Air sucked into the car, 6...Ventilation fan, 7...
・Chemical adsorption filter device, 8...purified air, 9...
External air sucked in for ventilation during normal times, 10... Butterfly valve for external air, 11... Butterfly valve for sucking air inside the vehicle, 12... Ventilation fan during normal times, 13.・Air blown from the ventilation fan during normal operation, 1
4...Sensor type controller Continued from page 1 0 Inventor Heribert Davelt Bahnhofstrasse, Federal Republic of Germany

Claims (1)

[Claims] 1. A method for ventilating the interior of an automobile in which a harmful substance separation filter is incorporated in the ventilation system, in which the air supply to the interior of the vehicle is controlled and normal ventilation is performed when the outside air is tinged with harmful substances. The external air (9) for use can be cut off from the interior of the vehicle, and a desired partial air amount (1) is supplied from the outside via a supply conduit (3) to a filter device (7) disposed in the trunk compartment. , if necessary, a controllable partial air quantity (5) from inside the vehicle is mixed with a partial air quantity (1) from outside, purified via a filter device (7) and in the area of the rear shelf (8). A motor vehicle, characterized in that the cabin air is supplied to the interior of the vehicle and, if necessary, the main ventilation fan (12) provides normal ventilation in the area of the footwells and windows with corresponding interior air via a butterfly valve (11). How to ventilate the inside of your car. 2. The method for ventilating the driver's seat of a motor vehicle according to claim 1, which comprises controlling the air supply to the vehicle interior through a hazardous substance measuring device (14). 3 As a hazardous substance measuring and controlling device (14), one sensor is used which senses CO or another hazardous substance component as a reference constant, and by means of this sensor the desired average workplace environment concentration value (
%), the main external air supply (9) is cut off and the partial air volume supply (1) is introduced and connected, and with a corresponding decrease in the concentration value, the chemisorption filter device (7) is cut off, and at the same time the normal A method for ventilating the interior of a motor vehicle according to claim 2, characterized in that the butterfly valve (11) is opened for ventilation by opening the butterfly valve (10). 4. A method for ventilating the interior of a motor vehicle according to claim 3, which makes it possible to connect a partial air quantity (1) to an air outlet of an installed air conditioner.