Occupant air filter for vehicles

Inactive Publication Date: 2001-05-01
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

What is required, therefore, is a device which can easily and efficiently filter the fresh air intake into a vehicle's air system. Preferably such device would be easy to build and install. Also, such a device would preferably be able to be used in a number of different vehicles from different manufacturers, and yet would provide consistent results. Such an occ

Problems solved by technology

However, the so called "fresh air" from the outside is not fresh at all.
This is especially true in urban and congested areas where overall air pollution is a serious problem.
However, this design is one

Method used

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  • Occupant air filter for vehicles
  • Occupant air filter for vehicles
  • Occupant air filter for vehicles

Examples

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Embodiment Construction

An air filtering device is shown generally as 10 in FIG. 1. The air filtering device includes a bottom base unit, shown generally as 12 which includes a perimeter mounting flange 14 and an air filter 16 which is retained in the bottom base unit 12. These elements are described in further detail below.

Also shown in FIG. 1 is a vehicle indicated generally as 20 which includes a hood 22 and a hood support cylinder 24. A blower motor assembly 26 is shown in exploded view above the air filtering device 10. The blower motor assembly 26 fits into a cavity 28 in the air circulation system of the vehicle 20. The air circulation system includes a cowl 30 which directs air past the blower 26, driving a fan 27, then a air condition core (or heat exchanger) 32 and then through conduits and into an interior portion of the vehicle 20.

The flow of air into the vehicle is shown by a number of arrows. Beginning with arrows 34, the air is taken in through an air intake screen 36 adjacent to the windshi...

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Abstract

An air filter device to filter fresh air for occupants of a vehicle is disclosed. The device includes a generally circular bottom base unit including a perimeter mounting portion to retain said device in an air conduit. The perimeter mounting portion includes a pair of mounting lips separated by an outwardly extending mounting groove. The lips resiliently flex over a rim formed in the vehicle to position the device in place. Extending from the base unit is an air filter which is sized and shaped to fit into a cavity located within a blower motor assembly. In this manner the device can be retrofit into a standard vehicle to provide air filtration without requiring extensive modification of the ducting and the like.

Description

FIELD OF THE INVENTIONThis invention relates generally to the field of air filters, and in particular to air filters which may be used to filter air being drawn into a closed space, such as the inside of a vehicle.BACKGROUND OF THE INVENTIONModern vehicles are built to withstand the extremes of climate. Therefore, the human occupied portion of the vehicle tends to be a closed space which can be heated, or cooled, to an appropriate temperature for any human occupants. Being a closed space, however, requires that fresh air be provided to the interior.Most vehicles, therefore, are provided with a fresh air intake conduit which allows fresh air from the outside to be passed into the interior of the vehicles. The majority of vehicles are equipped with a turbine fan blower air circulation system. This is widely used in both older and new vehicles. However, the so called "fresh air" from the outside is not fresh at all. For example, in a traffic jam, with a large number of vehicles produci...

Claims

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Application Information

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IPC IPC(8): B01D46/42B01D46/52B01D46/00B01D46/24
CPCB01D46/0005B01D46/2411B01D46/2414B01D46/4263B01D46/521B01D2273/30B01D46/62
Inventor ANONYCHUK, LAWRENCE
Owner 3M INNOVATIVE PROPERTIES CO
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