Filter arrangement for an air circulatory system

Details Filter arrangement for an air circulatory system Filter arrangement for an air circulatory system

F - Mech Eng,Light,Heat,Weapons

24

F

98/7

F24F 3/16 (2006.01) B01D 46/12 (2006.01) B60H 1/00 (2006.01) B60H 3/06 (2006.01)

Patent

CA 1150093

Filter Arrangement for an Air Circulatory System Abstract In an air circulatory system of the cab of an earthmoving vehicle it is desirable to have a source of ambient fresh air combined with existing cab air flowing through the air conditioning unit. It is common practice to pass both sources of air through one filter which adversely affects the effectiveness of the air conditioning unit. When separate filters are provided for each source of air, however, serviceability has often been sacrificed by having the filters placed in a location that is not easily accessible. The air circulatory system of this invention overcomes these problems by providing two filters which are cooperatively mounted within an assembly that directs the first ambient source of air through both filters while providing a chamber which mixes the cabin air with the ambient and directs the combined air only through the second filter. The chamber provides a passageway that is sufficient in size to provide an adequate air flow through the air conditioning unit at all times. The filter assembly is provided with mounting guides which allow the filters to be easily serviced from a common service point without concern for the destruction of seals that are bonded to each filter to prevent the ingress of air which has not been filtered.

384142

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