Adjustable air inlet control system
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United States of America Patent
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-
Nov 6, 1984
Grant Date -
N/A
app pub date -
Oct 8, 1982
filing date -
Oct 8, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rectangular air inlet control plate is pivotably mounted in the air intake passage of a forced air furnace to control the air intake volume and, thereby, insure optimal combustion of the fuel in the furnace. The plate is adjustably counter-balanced to a closed position and is further adjusted to allow the optimum volume of air intake during operation of the forced air furnace. The rectangular shape of the plate provides for fast opening and closing of the air intake during startup and shutdown transients, since the actuation angle of the plate is reduced in proportion to its length. The plate is mounted in a funnel-shaped air intake structure to reduce the noise and allow a maximum volume of air to enter the intake. A windscreen is mounted on the funnel-shaped air intake in order to act as a turbulence breaker for the incoming air, and also to prevent ingestion of large debris into the air intake.
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