Air pressure vent system for a vehicle passenger space

Details Air pressure vent system for a vehicle passenger space Air pressure vent system for a vehicle passenger space

1992-12-14

1993-11-16

Joyce, Harold

Ventilation

Vehicle

Having forced recirculation

454145, 454162, B60H 126

Patent

active

052618560

ABSTRACT:
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.

REFERENCES:
patent: 3448674 (1969-06-01), Southors et al.
patent: 3590858 (1971-07-01), Martin
patent: 3911801 (1975-10-01), Stolz
patent: 3993096 (1976-11-01), Wilson
patent: 4691623 (1987-09-01), Mizusawa
patent: 4834170 (1989-05-01), Sakurada et al.
patent: 4969485 (1990-11-01), Ball et al.
patent: 4972765 (1990-11-01), Dixon

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