Ventilation – Vehicle – Pressure regulation
Patent
1997-07-22
1999-11-16
Joyce, Harold
Ventilation
Vehicle
Pressure regulation
454105, F24F 1104
Patent
active
059847735
ABSTRACT:
A regulating apparatus and a regulating method for regulating the internal pressure P.sub.i of a ventilated, closed volume subjected to variations in external pressure P.sub.e, the apparatus including at least two compensation circuits enabling the intake air flow rate q.sub.1 and the extraction air flow rate q.sub.2 to be adjusted in real time so that the difference between these two flow rates algebraically compensates for the leakage flow rate q.sub.f, and maintains the internal pressure P.sub.i inside the volume at a constant level.
REFERENCES:
patent: Re24990 (1961-05-01), Del Mar
patent: 2407257 (1946-09-01), Del Mar
patent: 2549673 (1951-04-01), Del Mar
patent: 2549690 (1951-04-01), Klemperer
patent: 3473460 (1969-10-01), Emmons
patent: 5137490 (1992-08-01), Ishikawa et al.
Andre Pierre
Gervais Yves
Guinot Alain
Mariaux Gilles
Mineaud Gerard
GEC Alsthom Transport SA
Joyce Harold
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