To provide a new technique of a ventilation structure capable of suppressing wind noise and securing a ventilation amount during traveling when an air intake is provided on an outer surface of a railway vehicle.SOLUTION: A ventilation structure 10 includes a pair of air intakes (a first air intake 21 and a second air intake 22) provided symmetrically in an advancing direction of a side cover 5 and in its reverse direction. Each of the air intakes has an open width which is gradually increased toward an end part from a tip part, and has a shape where a ventilation cross section is gradually increased. Further, the ventilation structure 10 has negative pressure region forming structure parts (a first recessed part 31 and a second recessed part 32) forming negative pressure regions at adjacent positions corresponding to the air intakes, respectively.SELECTED DRAWING: Figure 2
【課題】鉄道車両の外側面にエアインテークを設ける場合の走行中の風切り音の抑制と通風量の確保との両立を図る新たな通気構造の技術を提供すること。【解決手段】通気構造10は、側カバー5の進行方向およびその逆方向に対称形状で設けられた一対のエアインテーク(第1エアインテーク21、第2エアインテーク22)を備える。当該エアインテークは、それぞれ先端部から末端部へ向かって開口幅が漸増し、且つ、通風断面積が漸増する形状を有する。また、通気構造10は、エアインテークそれぞれに対応した近接位置に、負圧域を形成する負圧域形成構造部(第1凹部31,第2凹部32)を有する。【選択図】図2
VENTILATION STRUCTURE AND RAILWAY VEHICLE
通気構造および鉄道車両
2023-11-30
Patent
Electronic Resource
Japanese
IPC: | B61C Lokomotiven , LOCOMOTIVES |
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