Engine operated working machine

Details Engine operated working machine Engine operated working machine

1999-03-19

2000-08-01

Kwon, John

Internal-combustion engines

Combined devices

123 4157, F02B 6300

Patent

active

060950994

ABSTRACT:
An engine operated working machine includes an engine and a working machine to be driven by the engine surrounded by a soundproof case. An exhaust compartment housing a muffler is formed in the soundproof case. An exhaust pipe connected with the muffler is bent in a direction so as to direct exhaust gas discharged therefrom away from an exhaust air opening of the exhaust compartment and has an opening positioned apart from the exhaust air opening. Cooling air forced into the exhaust compartment flows around the muffler and the exhaust pipe to cool them. Exhaust gas discharged from the exhaust pipe into the exhaust compartment is mixed with the cooling air to change a discharging direction thereof and is then discharged outside of the soundproof case through the exhaust air opening.

REFERENCES:
patent: 4608946 (1986-09-01), Tanaka et al.
patent: 4677940 (1987-07-01), Bracht et al.
patent: 4917201 (1990-04-01), Fujikawa et al.
patent: 6039009 (2000-03-01), Hirose

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