Abstract Air filter housing comprising a casing having an inlet and an outlet, the inlet cooperating with an inlet extension tube to provide an air intake orifice for the housing at the distal extremity of the inlet extension tube, and the outlet having an outlet orifice member for connection to the air intake of user apparatus (for example an internal combustion engine carburettor) downstream of the air filter; means for mounting a filter element in the casing to filter air flowing from the inlet orifice to the outlet orifice; and means responsive to the temperature of air in the filter housing for automatically varying the position of the inlet orifice with respect to the outlet orifice member in accordance with the temperature.
In a system for supplying air of controlled temperature to the carburetor for an internal combustion engine, comprising an air filter housing and conduit means together defining an air flow path from an inlet orifice through said housing to said carburetor, and a control responsive to the instantaneous temperature of air in the housing to vary accordingly the temperature of air passing through said flow path, that improvement comprising an adjustable joint in said conduit means providing for movement of said inlet orifice through a range of regions of varying air temperatures during operation of said carburetor, said control being operatively connected to said conduit means to adjust said joint and thereby move said orifice through said range.
Claim 2
Dependent Claim
118 words
In a system for supplying air of controlled temperature to the carburetor for an internal combustion engine, comprising an air filter housing and conduit means together defining an air flow path from an inlet orifice through said housing to said carburetor, and a control responsive to the instantaneous temperature of air in the housing to vary accordingly the temperature of air passing through said flow path, that improvement comprising an adjustable joint in said conduit means providing for movement of said inlet orifice through a range of regions of varying air temperatures during operation of said carburetor, said control being operatively connected to said conduit means to adjust said joint and thereby move said orifice through said range.
Claim 3
Dependent Claim
10 words
The improvement of claim 1 wherein said joint is rotatable.
Claim 4
Dependent Claim
51 words
The improvement of claim 2 wherein said control comprises a coiled bimetallic element, said conduit means includes an inlet extension tube to provide said orifice, said joint is between said tube and said housing, and said bimetallic element has one end fixed to said tube and the other to said housing.