Blower having a blower tube incorporating a reduction device...

Details Blower having a blower tube incorporating a reduction device... Blower having a blower tube incorporating a reduction device...

2006-07-18

2006-07-18

Freay, Charles G. (Department: 3746)

Pumps

Motor driven

Internal-combustion engine

C417S326000, C415S148000, C415S208100, C239S507000, C239S509000

Reexamination Certificate

active

07077632

ABSTRACT:
A blower (1) has a housing (10) to which a blower pipe (2) may be removably connected. An internal combustion engine located within the housing (10) drives a blower wheel. The blower wheel, in turn, generates an air flow (11) within the blower pipe. To reduce the exhaust gases and the fuel consumption during idle operation of the combustion engine, a reduction device (12, 22), located in the blower pipe downstream of the blower wheel reduces the clear cross section of flow during idle operation of the engine.

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