| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Method and apparatus for producing shock waves for medical applications | US10176647 | 2002-06-24 | US20030028129A1 | 2003-02-06 | Reiner Schultheiss |
| The invention describes a method and an apparatus for producing shock waves in a fluid for medical applications. In a work volume filled with fluid, the pressure is increased mechanically by pulses. The pressure pulse produced in the work volume is transferred to the fluid volume by means of a partition, in order to produce shock waves in the fluid volume. | ||||||
| 22 | Low-frequency sound source for towed array condition appraiser system (TACAS) | US250523 | 1981-04-02 | US4353120A | 1982-10-05 | George O. Pickens |
| An improvement for an apparatus for calibrating or otherwise determining low frequency operational parameters of an elongate hose-like array is compact enough to be mounted on a cart-like member which is free to travel the length of the array. The improvement is in the form of a pair of oppositely extending tubes each having a reciprocating element for ensonifying selective portions of the elongate array with low frequency energy. Having the reciprocating elements 180.degree. moving out of phase with respect to one another to exhibit mirror image excursions and at least one flexible radiating surface proximately located to the array assures that performance compromising vibrations are nullified and that low frequency energy is responsively received by the individual transducer elements along the array's length. | ||||||
| 23 | Electro-hydroacoustic transducer | US965015 | 1978-11-30 | US4203089A | 1980-05-13 | David A. DeBell |
| An underwater transducer which includes a fluid circuit having a valve disposed in a plenum chamber having a small aperture open to the ambient water pressure. Fluid flow into and out of the chamber by way of the valve is governed by controlling the valve opening and closing in accordance with movement of an electrodynamic driver which receives an input signal to be transmitted. | ||||||
| 24 | Apparatus for producing acoustic vibrations in liquids | US54264075 | 1975-01-20 | US3926413A | 1975-12-16 | D URSO ANTHONY M |
| An apparatus for producing acoustic vibrations in a flowing liquid comprises a body section, an inlet section, and an outlet section. Each of the sections has a substantially cylindrical inner surface and an outer surface. A first flange extends radially outwardly from an inlet end of the body section and a second flange extends radially outwardly from an outlet end of the body section. A first counterbore is located at the inlet end of the body section and a second counterbore is located at the outlet end of the body section. The inlet section is located adjacent to the inlet end of the body section and has an axially extending cylindrical flange extending into the first counterbore. The outlet section is located adjacent to the outlet end of the body section and has an axially extending flange extending into the second counterbore. An orifice plate is mounted in the first counterbore and has one face that is substantially spherical and another face that is substantially flat. The orifice plate has an eye-shaped orifice at its approximate midpoint. A blade plate is mounted in the second counterbore. The blade plate has a blade-like vibratory element aligned with the orifice. An annular sealing ring is located on each side of the orifice plate in the first counterbore. Annular sealing rings are also located on each side of the blade plate in the second counterbore. Each of the annular sealing rings has a substantially cylindrical inner surface. A flange extends radially outwardly from the inlet section adjacent to the body section. Another flange extends radially outwardly from the outlet section adjacent to the body section. A first clamping means surrounds the radially extendflanges of the inlet section and the inlet end of the body section to mount the inlet section to the body section. A second clamping means surrounds the radially extending flanges of the outlet section and the outlet end of the body section to mount the outlet section to the body section. Pins are provided to prevent rotation of the orifice plate in the first counterbore and the blade plate in the second counterbore. The inner surfaces of the inlet section, the body section, the outlet section, and the annular sealing rings being substantially equal in diameter and free of any crevices to minimize the possibility of bacteria buildup as liquid flows through the apparatus.
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| 25 | Projector of acoustic energy | US3764965D | 1972-06-16 | US3764965A | 1973-10-09 | MC LEAN W; CHRISTIE S |
| A hydroacoustic transducer having a motor-pump unit drawing in ambient water impells the water to a chamber and through a rotary shutter unit which modulates the flow in an on-off sequence. The on-off modulated flow passes through an interposed venturi section creating a corresponding sequence of positive and negative hydraulic pressure impulses. These impulses are fed to the radiating surfaces of an acoustic-energy projector to reciprocally displace them accordingly. Having the transducer substantially filled with water renders it relatively insensitive to ambient pressure variations to ensure reliable operation irrespective of depth.
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| 26 | Vortex valve fluid oscillator | US3674045D | 1970-07-14 | US3674045A | 1972-07-04 | MILLMAN WILLIAM V; MAYER ENDRE A |
| A vortex valve for use in a fluid oscillator circuit characterized by exhibiting a pronounced negative resistance characteristic in a portion of its operating range and by having a vortex chamber defined in part by a resiliently movable portion to provide a mechanical output in response to pressure variations in the chamber. This particular vortex valve is incorporated into a fluid oscillator arrangement to produce oscillatory pulses in the vortex chamber and responsive movements of the movable portion by adjusting the control and supply pressures and flows so as to be in the negative resistance range of the vortex valve while at the same time maintaining a constant supply flow.
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| 27 | Underwater fluid-operated horn | US3125061D | US3125061A | 1964-03-17 | ||
| 28 | 음높이 조절이 가능한 음향 발생 구조물 및 이를 포함하는 방파제 | KR2020090006199 | 2009-05-22 | KR2020100011668U | 2010-12-01 | 이지왕 |
| 본 고안은 해수 유입구; 상기 해수 유입구와 연결된 공기 전달 호스; 상기 공기 전달 호스의 말단과 연결된 울림통; 상기 울림통과 연결되고 음높이(pitch) 조절용 개구부가 하나 이상 형성된 관을 포함하는 음향 발생 구조물, 및 상기 음향 발생 구조물을 포함하는 방파제에 관한 것이다. 본 고안에 따른 음향 발생 구조물은 해수의 유입에 따라 내부에 공기 흐름이 발생함으로써 소리가 발생하므로 유지비가 거의 들지 않고, 이를 방파제 등에 설치하여 관광객이 음높이를 직접 조절할 수 있으므로 관광자원 및 랜드마크로서의 기능을 할 수 있으며, 미적 효과 및 음향 효과를 동시에 얻을 수 있다. 파도, 음향 발생, 음높이 조절, 방파제 | ||||||
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