Engine blower
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Feb 12, 2009
app pub date -
Aug 10, 2007
filing date -
Aug 10, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An engine blower includes a muffler (9) provided to an engine and a volute case (31) accommodating a fan driven by the engine. On a muffler main body (10) of the muffler (9), an exhaust-gas guide member (21) covering an exhaust-gas outlet port and a cover hood (22) covering the exhaust-gas guide member (21) on the side of the outlet port are provided. Between the exhaust-gas guide member (21) and the cover hood (22), an outside-air introduction gap (23) is formed, through which outside air is introduced into the cover hood (22) by ejector effects. A blow-off port (32) for blowing off a part of pressure air in the volute case (31) to the outside-air introduction port (23) is only provided at a position substantially on a back side of the outside-air introduction gap (23).
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