PROBLEM TO BE SOLVED: To provide an intake structure of a construction machine which inhibits sound noise emitted from an intake opening to the outside of an engine room at a wide frequency range with a compact structure.SOLUTION: An engine room 10 includes a main room 11 and an intake chamber 13 disposed at a side of the main room 11. A filter 27 allows the main chamber 11 and the intake chamber 13 to communicate with each other and is narrower than the intake chamber 13 when viewed from a direction in which the main chamber 11 and the intake chamber 13 face each other. An intake opening 17 is formed at the intake chamber 13 side. A duct 30 is formed so as to extend from the intake opening 17 to the interior of the intake chamber 13 and extend in a direction different from a fan suction direction X and is disposed so as to form a duct peripheral space 40 around a duct outer peripheral surface 33.SELECTED DRAWING: Figure 1
【課題】吸気開口からエンジンルームの外部へ放射される騒音を、コンパクトな構成で、広い周波数で抑制する。【解決手段】エンジンルーム10は、主室11と、主室11の横に配置される吸気室13と、を備える。フィルタ27は、主室11と吸気室13とを連通させ、主室11と吸気室13とが対向する方向から見たときに吸気室13よりも狭い。吸気開口17は、吸気室13側に形成される。ダクト30は、吸気開口17から吸気室13内に向かって延び、ファン吸込方向Xと異なる向きに延びるように形成され、ダクト外周面33の周囲にダクト周囲空間40が形成されるように配置される。【選択図】図1
INTAKE STRUCTURE OF CONSTRUCTION MACHINE
建設機械の吸気構造
2017-01-12
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / E02F Baggern , DREDGING / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |