Air diffuser systems, methods, and apparatuses

    公开(公告)号:US10081429B2

    公开(公告)日:2018-09-25

    申请号:US14336926

    申请日:2014-07-21

    IPC分类号: B64D13/06 F15D1/00 F15D1/02

    摘要: Aircraft, air conditioning systems, and air diffusers that may be used to create a quiet, comfortable environment within an aircraft cabin are disclosed. For example, an aircraft cabin air diffuser, which may be used in an air conditioning system and/or an aircraft, may include an inlet section, a neck section downstream of the inlet section, an outlet section downstream of the neck section, and a flow controller within the neck section. The flow controller may be a passive pressure controller (configured to affect air flow through the passive pressure controller in response to an air pressure differential across the passive pressure controller) and/or a vortex inducer (configured to create a vortex of air downstream of the vortex inducer).

    Passive diode-like device for fluids

    公开(公告)号:US09903536B2

    公开(公告)日:2018-02-27

    申请号:US14683657

    申请日:2015-04-10

    IPC分类号: F15C1/02 F17D1/16

    摘要: The present invention is directed to an improved fluid diode using topology optimization with Finite Element Method (FEM). Topology optimization as a flexible optimization method has been extended to the fluid field. For given boundary conditions and constraints, it distributes a specific amount of pores (or remove materials to get channel) in the design domain to minimize/maximize an objective function. In this design, inlet and outlet ports are aligned and inflow and outflow are in the same direction. The present invention features an intricate network of fluid channels having optimized fluid connectivity and shapes, which significantly improves the diodicity of fluidic passive valves.

    Flow conditioner
    8.
    发明授权

    公开(公告)号:US09829016B2

    公开(公告)日:2017-11-28

    申请号:US13716835

    申请日:2012-12-17

    IPC分类号: F15D1/04 F15D1/06

    摘要: The invention relates to a flow conditioner for conditioning a fluid flow comprising a pipe having a constriction with a reduced pipe cross-section, at least one ring-shaped element arranged inside the pipe which has an outer diameter which is smaller than the inner diameter of the pipe in the axial region of the pipe in which the at least one ring-shaped element is arranged, and having an areal web whose surface normal is not in parallel with the pipe axis. The invention further relates to a throughflow measurement system for measuring a fluid throughflow through a pipe having a measurement device and a flow conditioner in accordance with the invention arranged upstream of the measurement device.