| 摘要 |
An air circulation device for moving air within an automotive vehicle passenger compartment having a temperature conditioning system, a blower, and an intake air circulation duct, the intake air circulation duct having walls which are pierced by an outlet orifice, a first intake orifice, and a second intake orifice, the first and second intake orifices being selectively sealed by a primary valve assembly containing one or more directional flow control valves through which interior passenger compartment air may flow via the first intake orifice to the outside, thereby relieving unwanted positive air pressure within the passenger compartment.
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