VALVE FOR AN EXHAUST DUCT

VALVE FOR AN EXHAUST DUCT

Laminar flow properties are aimed at by means of a new type of exhaust-duct (200) valve (100). The casing (10) of the valve (100) has an internal diameter (X2) and exhaust-air opening (20). An opening horn (40) is located inside the casing (10), and is arranged to be connected to a flow connection w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ANTTILA, Timo, SAIKKONEN, Eero, PUIKKONEN, Pasi, LAHTI, Veli-Pekka, FRIIS, Kaj
Format: Patent
Sprache:eng ; lit
Schlagworte:
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
RANGES
VENTILATING
WEAPONS
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Beschreibung
Zusammenfassung:Laminar flow properties are aimed at by means of a new type of exhaust-duct (200) valve (100). The casing (10) of the valve (100) has an internal diameter (X2) and exhaust-air opening (20). An opening horn (40) is located inside the casing (10), and is arranged to be connected to a flow connection with the outer end of the exhaust duct (200) and to lead the air in the flow direction (Y) towards the exhaust-air opening (20) of the casing (10). The insert (30), which is located at least partly inside the casing (10) and at a distance (Y1) in the flow direction (Y) from the outer end of the exhaust duct (200), comprises an impingement surface (31) widening and an exit surface (32) narrowing in the flow direction (Y). The ration of the distance (Y1) between the insert (10) and the outer end of the exhaust duct (200) to the internal diameter (X2) of the casing is 0.4 or more.