AIR BLOWING DEVICE

• Main Authors: SAKAKIBARA DAISUKE, SEKIDO YASUHIRO, NAKAMURA TAKAHITO, KATO SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 07.06.2018
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

PROBLEM TO BE SOLVED: To provide an air blowing device having first and second centrifugal fans, and allowing for improvement in the performance of the second fan by using the blown air of the first fan.SOLUTION: The blown air of a first fan 14 flows into an air guide passage 161 as a swirl flow which turns in the same direction as that of the first fan 14. Then, the air guide passage 161 guides the flow-in swirl flow to a second fan 20 while maintaining a swirl direction of the swirl flow. As a result, the second fan 20 rotating in the same direction as that of the first fan 14 sucks air which forms the swirl flow turning in the same direction as that of the second fan 20 from a second fan suction port 181a. The performance of the second fan 20 can be therefore improved by using the swirl flow being the blown air of the first fan 14.SELECTED DRAWING: Figure 1 【課題】遠心式の第１ファンと第２ファンとを備え、第１ファンの吹出し空気を利用して第２ファンの性能を向上させることができる送風装置を提供することを目的とする。【解決手段】第１ファン１４の吹出し空気は、第１ファン１４と同じ向きに回る旋回流として導風通路１６１へ流入する。そして、導風通路１６１は、その流入した旋回流を、その旋回流の旋回方向を維持しつつ第２ファン２０へと導く。これにより、第１ファン１４と同方向へ回転する第２ファン２０は、第２ファン２０と同じ向きに旋回する旋回流となった空気を第２ファン吸込口１８１ａから吸い込む。従って、第１ファン１４の吹出し空気である旋回流を利用して、第２ファン２０の性能を向上させることができる。【選択図】図１