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1. 发明申请

WO2006134199A1 ULTRASOUND FLOWMETER ARRANGEMENT FOR DETERMINING SPEED OF SOUND 审中-公开
标题翻译：超声波流量计装置用于确定声速
公开(公告)号：WO2006134199A1
公开(公告)日：2006-12-21
申请号：PCT/FI2005/000288
申请日：2005-06-16
申请人： JUSTIFLOW OY , HIISMÄKI, Pekka , HYVÖNEN, Pekka , KOUKKARI, Sauli
发明人： HIISMÄKI, Pekka , HYVÖNEN, Pekka , KOUKKARI, Sauli
IPC分类号： G01F1/66
CPC分类号： G01F1/668
摘要： The invention relates to an acoustic flow meter arrangement and method, which comprises an primary and a secondary sound sources arranged to emit sound as periodical pseudo-static sequences in a step-wise manner to opposite stream-wise directions of the flow channel, and a first sensor having a distance to a second sensor, both sensors being arranged, synchronously to the emission steps of sound, to detect and to sample said sound into digital sensor sequences, wherein the arrangement comprises also a processor for processing from said sensor sequences a sum T sum and a difference T diff of upstream transit time and downstream transit time of sound between the locations of the sound sensors (1,2) for direct use as the sum and the difference in the determination of the flow velocity. According to the embodiment of the invention the secondary sound source in said arrangement can comprise at least one of the following: an arranged discontinuity of the flow channel, a reflector-attenuator, and a transducer unit (3) to emit sound, which is made up of the same discrete frequencies as the primary sound.
摘要翻译：本发明涉及一种声学流量计装置和方法，其包括一个主声源和一个次声源，其布置成以逐步的方式将声音作为周期性伪静态序列发射到流动通道的相反流向方向;以及第一传感器具有距离第二传感器的距离，两个传感器与声音的发射步骤同步地布置，以检测并将所述声音采样到数字传感器序列中，其中该装置还包括用于从所述传感器序列处理总和 Ť

2. 发明申请

WO2006134221A2 AN ACOUSTIC ARRANGEMENT 审中-公开
标题翻译：声音安排
公开(公告)号：WO2006134221A2
公开(公告)日：2006-12-21
申请号：PCT/FI2006/000212
申请日：2006-06-16
申请人： JUSTIFLOW OY , HIISMÄKI, Pekka , HYVÖNEN, Pekka , KOUKKARI, Sauli
发明人： HIISMÄKI, Pekka , HYVÖNEN, Pekka , KOUKKARI, Sauli
IPC分类号： G01F1/66
CPC分类号： G01F1/668
摘要： The invention concerns a flow metering techniques, which applies acoustic means and/or methods as embodied for an acoustic flow metering arrangement according to the invention. The flow metering can be implemented with an acoustic flow meter arrangement, which comprises a measuring section (1) provided with a sound source, at least two sound sensors and a reflector, being arranged so that the sound source of the acoustic flow meter arrangement and at least two sound sensors are arranged to mutual pre-defined distances in the measuring section. So, the determination of the sound velocity at rest ( c ) and the flow velocity ( v ), from the known distance between the sound source and the sensors, is obtainable from the values for sum ( T SUM ) and difference ( T DIF ) of the upstream and downstream transit times of sound between the sensor locations, by utilising the sound as directly propagated and as reflected.
摘要翻译：本发明涉及一种流量计量技术，其应用如根据本发明的声流计量装置所体现的声学装置和/或方法。流量测量可以用声学流量计布置来实现，其包括设置有声源的测量部分（1），至少两个声音传感器和反射器，其被布置成使得声流计布置的声源和至少两个声音传感器被布置成在测量部分中相互预定义的距离。因此，从声源和传感器之间的已知距离确定静止时的声速（c）和流速（v），可以从sum（T SUM

3. 发明申请

WO2018193155A1 CROSS-FLOW TURBINE 审中-公开
公开(公告)号：WO2018193155A1
公开(公告)日：2018-10-25
申请号：PCT/FI2018/000010
申请日：2018-04-17
申请人： HIISMÄKI, Pekka
发明人： HIISMÄKI, Pekka
IPC分类号： F01D5/04 , F03D3/06 , F03B13/12 , F03B13/22 , F03B17/06 , E02B9/08
CPC分类号： F01D1/22 , F01D5/04 , F03B13/12 , F03B17/063 , F03D3/061 , F05B2210/16 , F05B2240/213 , F05B2240/244 , F05B2240/30 , F05D2240/24 , F05D2250/75 , Y02E10/28 , Y02E10/38 , Y02E10/74
摘要： The invention deals with cross-flow turbines meant to be immersed in undisturbed free fluid flow fields such as wind, tidal, river or shallow ocean wave flow, crossing perpendicularly the rotation axes of the turbine. The curved blades of the turbine are positioned at the turbine perimeter in such a way that the curved channels between the blades form S-shaped rotating ducts interrupted in the middle by the empty turbine throat (1). These turbines are multiduct extensions of the single duct Savonius turbine. In multiduct turbines at least one duct is all the time in a favourable position for producing strong cross-flow diametrically through the throat and high torque with greatly reduced variation versus rotation angle. The best performance is achieved, if the convex portion (2) of the boundary of each blade is located as far from the axes as possible.

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