To provide a vehicular air intake duct structure improving water separation performance while ensuring an air intake flow rate.SOLUTION: A vehicular air intake duct structure is equipped with a hollow air intake part that has an air intake opening part and to which an air intake duct body is communicated and connected, and an air intake guide member 40 that is equipped in the air intake part. The air intake guide member is equipped with a first guide part 41 that has a first upper surface part 41a and a first side surface part 41b disposed on an air intake upstream side and projecting out from the air intake opening part to a deep part in the air intake part, and a first front surface part 41c disposed in the deep part in the air intake part, and a second guide part 42 that has a second upper surface part 42a and a second side surface part 42b disposed on an air intake downstream side of the first guide part and projecting out from the air intake opening part to the deep part in the air intake part, and a second front surface part 42c disposed in the deep part in the intake air part. The first guide part has a larger projecting amount to the deep part than the second guide part, and a flow channel cross sectional area S1 of the downstream of the first guide part is the same or almost the same as a flow channel cross sectional area S2 of the downstream of the second guide part.SELECTED DRAWING: Figure 8
【課題】吸気流量を確保しつつ水分離性能を向上させる車両用吸気ダクト構造を提供する。【解決手段】吸気開口部を有し、吸気ダクト本体が連通接続される中空の吸気取入部と、吸気取入部内に装備される吸気ガイド部材40と、を備え、吸気ガイド部材は、吸気上流側に配置され、吸気開口部から吸気取入部内の奥部に突出する第1上面部41a及び第1側面部41bと、吸気取入部内の奥部に配置された第1正面部41cとを有する第1ガイド部41と、第1ガイド部の吸気下流側に配置され、吸気開口部から吸気取入部内の奥部に突出する第2上面部42a及び第2側面部42bと、吸気取入部内の奥部に配置された第2正面部42cとを有する第2ガイド部42とを備え、第1ガイド部は第2ガイド部よりも奥部への突出量が大きく、第1ガイド部の下流の流路断面積S1は、第2ガイド部の下流の流路断面積S2と同一又は略同一である。【選択図】図8
VEHICULAR AIR INTAKE DUCT STRUCTURE
車両用吸気ダクト構造
14.05.2024
Patent
Elektronische Ressource
Japanisch
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |