| 摘要 |
<p>A radiator (40) and condenser (42) bridge the front of an engine bay (10) of an automotive vehicle. An electric motor powered ducted fan (50) is disposed directly behind and in enclosing relation to the radiator and condenser to draw air through the radiator and condenser and convey the hot effluent to a location outside the engine bay. While the bay is intended to be ventilated by ram air, any hot spots that may occur in or adjacent the bay, due to an insufficiency or complete lack of ram air, may be ventilated by providing an ejector (76) in association with the ducted fan system. Effluent from the ducted fan (50) is conveyed through the ejector (76), which by means of venturi effect, creates a relatively low pressure zone. A relatively higher pressure zone at a hot spot is connected by means of a ventilating conduit (98, 100) to the relatively lower pressure zone of the ejector. A ventilating flow is induced through the ventilating conduit and entrained with the effluent for ensuing discharge to a location outside the bay.</p> |
