公开(公告)号：US5647201A

公开(公告)日：1997-07-15

申请号：US510223

申请日：1995-08-02

Applicant: Dale L. Hook ,  Hermann W. Behrens ,  Kiran R. Magiawala

Inventor： Dale L. Hook ,  Hermann W. Behrens ,  Kiran R. Magiawala

IPC: F02K9/44 ,  F02K9/60 ,  F15D1/06 ,  F15D1/08 ,  F02K9/52

CPC classification number: F15D1/08

Abstract: Disclosed is a low flow, low Reynolds number cavitating venturi. This cavitating venturi includes an inlet for receiving a liquid at an upstream pressure and an outlet for discharging the liquid received by the inlet at a downstream pressure. The liquid passes through a converging portion having a converging sidewall which extends from said inlet, through a throat portion having a throat sidewall and a diverging diffuser portion having a diverging sidewall. The cavitating venturi provides a substantially stable liquid flow rate independent of the downstream pressure up to a downstream pressure at least as high as 80% of the upstream pressure at a Reynolds number of 60,000 or less.

Abstract translation: 公开了低流量，低雷诺数气蚀文丘里管。 该气蚀文丘里管包括用于接收上游压力的液体的入口和用于在下游压力下排出由入口接收的液体的出口。 液体通过具有会聚侧壁的会聚部分，该会聚侧壁从所述入口延伸穿过具有喉部侧壁的喉部和具有发散侧壁的发散扩散部。 气蚀文丘里管提供基本上稳定的液体流速，独立于下游压力，直到下游压力至少高达雷诺数为60,000或更小的上游压力的80％。

公开(公告)号：US4375687A

公开(公告)日：1983-03-01

申请号：US220474

申请日：1980-12-29

Applicant: Dale L. Hook ,  John Waypa ,  Theodore A. Jacobs

Inventor： Dale L. Hook ,  John Waypa ,  Theodore A. Jacobs

IPC: H01S3/0953 ,  H01S3/02

CPC classification number: H01S3/0953 ,  Y10S372/701

Abstract: A hypersonic wedge nozzle for chemical lasers that has a radially diverginglow primary nozzle with a multiplicity of hypersonic wedge type secondary injection wedges at the exit end of the primary nozzle to allow gas flow to become supersonic in the primary nozzle before entering the regions between the secondary injection wedges or the surfaces thereof. Utilization of the large diverging primary nozzle in producing supersonic flow minimizes viscous effects in producing the supersonic flow in a chemical HF or DF laser.

Abstract translation: 用于化学激光器的超音速楔形喷嘴，其具有在主喷嘴的出口端处具有多个超音速楔形二次注射楔的径向扩张的流动主喷嘴，以允许气体在进入主喷嘴之间的区域之前变成超音速 二次注射楔或其表面。 利用大的发散主喷嘴生产超音速流量可以最大限度地减少在化学HF或DF激光器中产生超音速流动的粘滞效应。