B - Operations – Transporting – 60 – H
Patent
B - Operations, Transporting
60
H
B60H 1/32 (2006.01) B60H 1/00 (2006.01)
Patent
CA 2085510
FMC 0336 PUS -17- 90-548 Abstract Of The Disclosure An interior air temperature sensing system is provided for use with a vehicle interior compartment air temperature regulating system including an ambient air inlet duct, a blower housing connected to an air inlet duct and an air temperature modifier and a blower situated within the blower housing. The blower draws air from the air inlet duct under negative pressure and conveys the air at positive pressure past the air temperature modifier to the interior compartment. The air temperature sensing system includes an air temperature sensor and a venturi valve coupled to the negative pressure area of the blower. The valve includes an inlet port, and outlet port and a venturi section extending therebetween defining a point of minimum flow area, or valve seat. The valve also includes a diverter channel having a first port in communication with the inlet port and a second port in communication with the outlet port and a plug member situated between the inlet port and the outlet port and having a diameter greater than the valve seat. As the blower draws ambient air from the inlet duct, interior compartment air is drawn by the sensor and through the venturi valve and across the valve seat and out the outlet port. If the ambient air pressure exceeds the blower output pressure, the plug member is forced onto the valve seat to divert the oncoming air through the diverter channel creating a secondary venturi and continuing to draw air from the sensor, through the diverter channel to discharge elsewhere within the interior compartment.
Flack Leonard J.
Terry Joseph L.
Ford Motor Company Of Canada Limited
Sim & Mcburney
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