SILENCING UNIT
PROBLEM TO BE SOLVED: To provide a silencing unit capable of reducing noise while preventing degradation of exhaust efficiency.SOLUTION: A silencing unit is mounted on an exhaust port 7 for discharging exhaust from an exhaust fan 6 to the outside, has an opening section 9a formed adjacent to the exh...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a silencing unit capable of reducing noise while preventing degradation of exhaust efficiency.SOLUTION: A silencing unit is mounted on an exhaust port 7 for discharging exhaust from an exhaust fan 6 to the outside, has an opening section 9a formed adjacent to the exhaust port while keeping away from exhaust flow, and receives noise emitted from the exhaust port through the opening section by diffraction phenomenon to reduce the noise. A cylindrical chamber 9 including a wall section 12 for reflecting the noise received from the opening section, is disposed. A sound pressure is attenuated by the noise received into the cylindrical chamber and the sound reflected by the wall section. |
---|