Electronically regulated self-controlled ventilation unit
AssigneeAldes Aeraulique
InventorsXavier Boulanger, Patrick Damizet
Life of this patent
Estimating the term…
Abstract
A ventilation unit is provided comprising an electronically driven ventilator, mounted inside a casing wherein emerge several ducts connected to one or several rooms. Said unit further comprises orifices with specific cross-section, and a differential-pressure sensor measuring the difference in pressure between two predetermined points, said value being transmitted to an analysis and control device, which compares the differential pressure value to a reference value and controls the ventilator, such that it accelerates or slows down it rotational speed, so as to maintain the differential pressure constant and equal to the reference value, to maintain the desired flow rate at said orifices.
Claims16
An electronically regulated self-controlled ventilation unit, comprising:
- a fan driven electrically;
- a casing having a duct formed therein, the duct connected with a room, the fan being mounted in the casing;
- orifices of a determined cross section;
- and
- a differential-pressure sensor measuring a pressure difference between two predetermined points, the measured differential-pressure value being transmitted to an analysis and control device which compares the differential-pressure value with a reference value and controls a rotational speed of the fan, so as to keep the differential-pressure value constant and equal to the reference value to maintain a desired ventilation flow rate at the orifices.
Dependencies are inferred from the claim text.