Engine-Driven Work Machine

An engine-driven work machine is provided in which an engine/work machine unit ( 5 ) and an exhaust muffler ( 23 ) are housed in a box ( 30 ), the box ( 30 ) is provided with a cooling air passage ( 44 ) that passes the area around the engine/work machine unit ( 5 ) and the exhaust muffler ( 23 ), a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YUKI HITOSHI, ONODERA TAIYO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL COOLING OF INTERNAL-COMBUSTION ENGINES COOLING OF MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	An engine-driven work machine is provided in which an engine/work machine unit ( 5 ) and an exhaust muffler ( 23 ) are housed in a box ( 30 ), the box ( 30 ) is provided with a cooling air passage ( 44 ) that passes the area around the engine/work machine unit ( 5 ) and the exhaust muffler ( 23 ), and a cooling fan ( 15 ) driven by the engine ( 2 ) is disposed in the cooling air passage ( 44 ), wherein the box ( 30 ) is provided with blocking means ( 51 ) for blocking the cooling air passage ( 44 ) between the engine ( 2 ) and the exhaust muffler ( 23 ) when running of the engine ( 2 ) is stopped. The heat of the high temperature exhaust muffler can thus be prevented from affecting the engine/work machine unit even when running of the engine is stopped, while maintaining the soundproofing of the box housing the unit, etc.