Self activated fluidic control for a submerged towed body专利检索-曳力装置钓鱼与渔业专利检索查询-专利查询网

Self activated fluidic control for a submerged towed body

阅读：9发布：2022-09-30

专利汇可以提供Self activated fluidic control for a submerged towed body专利检索，专利查询，专利分析的服务。并且A bi-stable fluidic amplifier is inserted in a towed body. The nose of the towed body is opened to admit fluid, which is funnelled under the force of the flow stream into the fluidic amplifier. A passive pressure sensor, preset to a desired depth or altitude controls the direction of the fluid leaving the fluidic device through exit conduits connected from the fluidic device, one to the upper and one to lower surface of the towed body. These exit lines terminate at approximately the separation point of the fluid flowing around the body. The pressure regulator reacting to changes in depth directs a control signal to the fluidic amplifier to divert the passage of the fluid to either the upper or lower exit conduits, depending upon the pressure. Fluid from an exit port is entrained back along the side of the body causing the separation point on that side of the body to move back along the body thereby increasing lift on that side of the body. The change in the lifting force on one side of the body without an equal change on the opposite side forces a change in the attitude or angle of attack of the body to the fluid so it will either plane towards the surface or dives, until the body reaches the pressure level preset on the pressure sensor.，下面是Self activated fluidic control for a submerged towed body专利的具体信息内容。

权利要求

1. A self-contained system for depth control of a sub submerged towed body, comprising: a fluidic amplifier mounted in said body and having an inlet in the flow stream of the body; said fluidic amplifier having a plurality of exit conduits; a first of said exit conduits terminating on the surface of said submerged body in a first exit port and a second of said exit conduits terminating on the surface of said submerged body opposite to the termination of said first conduit, in a second exit port; a regulator connected to said amplifier and having an inlet in said flow stream, providing control fluid to said amplifier for diverting the stream entering said fluidic amplifier to said first or second exit conduits to alter the body attiTude; said first and said second exit ports being in the region of flow separation; and said exit ports are shaped to entrain said fluid along the side of said body aft of the exit port and causing the flow stream separation point to move further aft along said body and increasing the lifting force on the body for altering its attitude.

2. The system of claim 1 wherein: said first exit port is on the top of said body; said 3 second port is on the bottom of said body; and including a pressure transducer connected to said regulator for sensing a variance of body depth from a predetermined depth; said regulator emitting a control stream to divert said flow stream to said second conduit in response to a sensed pressure higher than said predetermined depth pressure for diverting said entering stream to said second exit conduit and producing a force on the bottom of said submerged body; said regulator directing a control steam to said fluidic device in response to a sensed pressure lower than said desired pressure and diverting said entering stream to said first exit conduit and producing a force on the top of said submerged body; and said force on said bottom of said submerged body forcing said body into a surfacing attitude to decrease the depth of said submerged body and said force on said top of submerged body forcing said submerged body into a dive attitude to increase the depth of said submerged body.

3. The system of claim 2 comprising: a spoiler conduit connected from said first exit conduit to said bottom of the submerged body and terminating in a spoiler port on the bottom of said submerged body and adjacent to said second conduit outlet; a second spoiler conduit connected to said first exit conduit to a point on the top of said submerged body, and terminating in a spoiler port on the top of said body and adjacent to first conduit exit port; each of said spoiler conduits diverting a portion of its respective exit conduits stream; and each of said spoiler ports directing its stream opposite the direction of said flow stream for increasing the flow stream separation from said body.

4. The system of claim 3, wherein: said regulator is a proportional flow regulator for emitting a control stream proportional to the variance in sensed pressure from said predetermined depth; and said fluidic amplifier is a proportional flow amplifier and includes a third exit conduit connected to a third exit port for conveying said incoming stream through said body, in the absence of control fluid emitted by said regulator.

5. A self contained system for depth control of a submerged towed body, comprising: a fluidic amplifier mounted in said body, having an inlet in the flow stream of said body, and having a first, second and third exit conduits terminating in the stern of said submerged body; a regulator connected to said amplifier, and having an inlet in said flow stream for providing control fluid to said amplifier for diverting the stream entering said fluidic amplifier to one of said first, second or third exit conduits; a first intake conduit connected to said first exit conduit; said intake conduit having an opening at the upper surface of said submerged body within the flow separation region; a second intake conduit connected to said second exit conduit and having an intake at the bottom surface of said submerged body in the flow separation region; said regulator having a pressure sensor for sensing the variance in depth of the body from a predetermined depth; said regulator directing a control stream to said fluidic amplifier when said sensor senses a pressure greater than the desired pressure for diverting said entering stream to said second exit conduit; said second exit conduit stream creating a lower pressure in said second intake conduit and drawing fluid into said second intake conduit from said flow separation region for moving the flow separation point furtHer aft along the surface of said submerged body and increasing the lift along said bottom surface of said submerged body; said regulator directing a control stream to said fluidic amplifier when said sensor senses a pressure lower than said desired pressure for directing said entering stream to said first exit conduit; said first exit conduit stream creating a low pressure in said first intake conduit for drawing fluid in from said separation region surrounding said first intake conduit, for moving said separation point further aft and increasing lift along said upper surface; and said increased lift along said lower surface changing said submerged body attitude to a diving attitude and said increased lift along said lower surface changing said submerged body attitude to a surfacing attitude.

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Self activated fluidic control for a submerged towed body

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