INTAKE DEVICE FOR ENGINE

• Main Authors: SAKA AKIHITO, SHIGEUCHI SHIN, HAGIWARA KENTA, ITO SADAAKI
• Format: Patent
• Language: English; Japanese
• Published: 03.10.2022
• Subjects: 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; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

To improve reliability by materializing a rigid structure as a whole while improving silence effect in an intake device constituted by a duct unit integrated with a resonator, and an air cleaner.SOLUTION: A duct unit 6 is formed by welding two front and rear shell-like members 21, 22, and includes an intake duct 23 formed in an almost U-shape, and resonators 24, 25 disposed in a space surrounded by the intake duct 23. A receiving plate 16 extending forward and rearward is integrally formed in an upper end of the duct unit 6, and a body case 7 of an air cleaner 5 is welded to the receiving plate 16. Since the intake duct 23 is formed in the almost U-shape having a bottom plate 23c, flow resistance of air is small. The capacity of the resonators 24, 25 can be increased, and therefore, silence effect is high. The receiving plate 16 and the body case 7 are welded via ribs 28, 29, and therefore, they can be sufficiently vibrated and can be firmly joined (fixed) even when the area is large.SELECTED DRAWING: Figure 6 【課題】レゾネータが一体化されたダクトユニットとエアクリーナとから成る吸気装置において、消音効果の向上を図りつつ、全体を堅牢な構造と成して信頼性を高める。【解決手段】ダクトユニット６は前後２枚のシェル状部材２１，２２を溶着して形成されており、略Ｕ型に形成された吸気ダクト２３と、吸気ダクト２３で囲われた空間に配置されたレゾネータ２４，２５とを具備する。ダクトユニット６の上端には前後に張り出した受け板１６が一体に形成されており、受け板１６にエアクリーナ５の本体ケース７が溶着されている。吸気ダクト２３は底板２３ｃを有する略Ｕ型であるため、空気の流れ抵抗は小さい。レゾネータ２４，２５は容量を大きくできるため、消音効果は高い。受け板１６と本体ケース７とはリブ２８，２９を介して溶着されているため、広い面積であってもしっかりと加振して強固に接合（固着）できる。【選択図】図６