Engine-driven operating machine
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United States of America Patent
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Sep 19, 2006
Issued Date -
N/A
app pub date -
Feb 4, 2005
filing date -
Sep 15, 2004
priority date (Note) -
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Abstract
A soundproof engine-driven operating machine has a small installation area, is easy to assemble and disassemble, and has superior cooling effects. The soundproof engine-driven operating machine includes an engine, an operating machine main body that is driven by the engine, a base frame that supports the engine and the operating machine main body in a vibration-proof structure, and a case fitted to the base frame and accommodating the engine and the operating machine main body. One part of the case includes a first-story chamber accommodating the engine and the operating machine main body, first and second heat exchangers, each having a cooling fan and being arranged above the first-story chamber, the first and second heat exchangers performing heat conversion relating to the operation of the engine by using the cooling fans, arranged separately in a ventilation path, and a second-story chamber accommodating a muffler for discharging engine air. The part of the case is formed from a structural frame that is provided on the base frame. A cover is secured to the base frame, and covers the entire structural frame.
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