Air-suction-noise reduction device and working machine with the same

Provided is an air-suction-noise reduction device. An engine cover (17) has a cover body (19) and an engine hood (20) installed over an opening in the upper face of the cover body (19). Reinforcement plates (24) are fixed to the inner surface of the engine hood (20). First to fourth reinforcement pl...

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Bibliographische Detailangaben
Hauptverfasser:	UEMURA ATSUSHI, YABE MITSUO, IMAMURA KAZUYA, IWASAKI MIKIO, OKAZAWA KOJI, NISHIMINE SUEYOSHI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING COMBUSTION ENGINES DREDGING FIXED CONSTRUCTIONS FOUNDATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS HYDRAULIC ENGINEERING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SOIL SHIFTING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	Provided is an air-suction-noise reduction device. An engine cover (17) has a cover body (19) and an engine hood (20) installed over an opening in the upper face of the cover body (19). Reinforcement plates (24) are fixed to the inner surface of the engine hood (20). First to fourth reinforcement plates (24a-24d) of the reinforcement plates (24) partition the space inside an engine section (14). Inside the engine section (14) are formed an expansion chamber (26) communicating with an air suction path (23) that runs to an engine and resonance chambers (27, 28) communicating with the expansion chamber (26) via ports (29).