MOTOR-DRIVEN BLOWER

• Main Authors: FUKUMOTO MASAMI, TORIGOE MASAO, YAMAURA IZUMI
• Format: Patent
• Language: English
• Published: 15.08.1986
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

PURPOSE:To form an air stream in a smooth flow so as to prevent exfoliation and improve a silencing effect and efficiency, by forming between inner and outer guide walls a spaced part closing its end part while providing a communication part, which connects said spaced part with a return passage, in the inner and outer guide walls. CONSTITUTION:A blower sets between inner and outer guide walls 22, 23 a spaced part 25 closing its end part further forms a communication part 26, which connects the spaced part 25 with a return passage 20, in the inner and outer guide walls 22, 23. In this way, even if the outer guide wall 23 comes to easily generate exfoliation of an air stream, air is supplied from the spaced part 25 through the communication part 26. This supply of air, holding the air stream to be balanced, prevents exfoliation in the vicinity of the outer guide wall 23. The air is supplied from the communication part 26 of the inner guide wall 22, and the blower, smoothly supplying air along the inner guide wall 22 because the air is supplemented to the spaced part 25 from a communication hole 26 of the inner guide wall 22, improves also efficiency. While by the above constitution, the blower, serving in the spaced part 25 for silencing a noise with the communication part 26 being as an inlet, enables the noise to be reduced to a low level.