Fluid transport pipe |
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| 申请号 | JP576685 | 申请日 | 1985-01-18 | 公开(公告)号 | JPS61166428A | 公开(公告)日 | 1986-07-28 |
| 申请人 | Motoda Electronics Co Ltd; | 发明人 | MOTODA KENRO; | ||||
| 摘要 | PURPOSE:To transmit a signal with good responsibility even if fluid has viscosity and a pipe has a small bore by mounting an ultrasonic and a pipe has a small bore by mounting an ultrasonic vibrator on the outer surface of the pipe formed by an elastic body, and driving the vibrator to generate a surface progreeive elastic wave in the inner surface of the above pipe. CONSTITUTION:Ultrasonic vibrators E are mounted on the outer periphery of a fluid transport pipe 1 formed by a pipe made of an elastic body. When the vibrators E are driven to propagate the progressive wave of the longitudinal wave and transversal wave of ultrasonic wave to the pipe 1, fluid contacting the iner wall of the pipe 1 is caused to move. Thus, though usually the velocity of flow of the fluid contacting the inner wall is slower than that of fluid in the other portions due to frictional resistance between the fluid and the pipe 1, the usual velocity of flow is increased by action of the surface progressive elastic wave. Therefore, as a whole, the fluid is reduced in resistance to increase the velocity of flow. | ||||||
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