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公开(公告)号：US20230051585A1
公开(公告)日：2023-02-16
申请号：US17444959
申请日：2021-08-12
发明人： Natalia Posada
IPC分类号： G01M9/04
摘要： A portable tracer fluid injection system. The system has a vapor cloud generator which vaporizes a vapor cloud generating liquid. The vapor cloud generator is uses a sub-ohm resistive heater to vaporize small volumes of the vapor cloud generating liquid, allowing for a relatively small tracer fluid injection system. This system has the benefit of being able to target specific regions of a test object within a wind tunnel and being usable for different positions within the test section of a wind tunnel.
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公开(公告)号：US11378486B2
公开(公告)日：2022-07-05
申请号：US16842789
申请日：2020-04-08
发明人： Yan Han , Lian Shen , Chunsheng Cai , Baoxi Xiao , Chunguang Li , Peng Hu , Kuo Wang
摘要： The present invention discloses a pollutant generation system. The pollutant generation system includes a pollution source and a pollutant emitter. The pollutant emitter is connected to the pollution source. The pollution source is composed of two gases including air and methane. The flows of the gases are strictly controlled. Then, the gases enter a magnetic bead glass bottle. Due to the disturbance of magnetic beads to the flowing of the gases, the gases are sufficiently disordered, and the two gases are sufficiently mixed by using a spiral tube to generate a uniform and stable pollution source.
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公开(公告)号：US20220146368A1
公开(公告)日：2022-05-12
申请号：US17579925
申请日：2022-01-20
IPC分类号： G01M9/04
摘要： A wind tunnel device may include a waste disposal unit configured to collect fluid from a droplet extractor positioned in a wind tunnel. The waste disposal unit may include a drain line and a liquid trap integrated in the drain line. The liquid trap may be adjustable during operation of the wind tunnel to accommodate different tunnel operating conditions (e.g., wind speeds) such that liquid waste does not backflow into the wind tunnel.
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公开(公告)号：US20220119256A1
公开(公告)日：2022-04-21
申请号：US17502527
申请日：2021-10-15
摘要： A method for nitrous decomposition can include: expanding liquid nitrous into gaseous nitrous in a decomposition chamber; injecting heated nitrogen gas into the decomposition chamber so as to mix with the gaseous nitrous, wherein the heated nitrogen gas is at a nitrous decomposition temperature; heating the gaseous nitrous with the heated nitrogen gas to the nitrous decomposition temperature; and decomposing the gaseous nitrous into nitrogen and oxygen. The method can include: heating the nitrogen to at least the nitrous decomposition temperature; heating the liquid nitrous prior to expansion into the decomposition chamber; and performing the decomposition without a catalyst or heating element in the decomposition chamber. A swirling device can be positioned at an inlet to the decomposition chamber. A swirling nozzle can be positioned at an inlet to the decomposition chamber.
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公开(公告)号：US20220082470A1
公开(公告)日：2022-03-17
申请号：US17306405
申请日：2021-05-03
发明人： Ji Min JEONG , Jin Hyuck Chang , Min Sik Chung
IPC分类号： G01M9/06 , G01M9/04 , G01M17/007
摘要： A method of evaluating integrated running energy of a vehicle in a wind tunnel may include estimating change in fuel efficiency according to change of vehicle parts thereby facilitating precise measurement of running energy.
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公开(公告)号：US20220057292A1
公开(公告)日：2022-02-24
申请号：US17362336
申请日：2021-06-29
申请人： IFly Holdings, LLC
发明人： N. Alan METNI , Mark ARLITT
摘要： A cooling system for a wind tunnel is disclosed. The heat exchanger of the present disclosure is formed as a turning vane in an airflow duct of a re-circulating wind tunnels. The individual vanes are formed from extruded aluminum with coolant fluid channels running continually down the length of the vane. One or more channels can be used, depending on the application of vane and the cooling capacity needed. The exterior of the vanes are formed in an airfoil shape to efficiently turn the air flow the desired amount in a manner well known in the art. The turning vanes are connected to a fluid supply with single piece connectors that removably attach to the turning vanes. In the depicted embodiment the connectors are attached with screws. In the depicted embodiment the connectors are formed as a single piece in a two-piece injection mold.
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公开(公告)号：US11029239B2
公开(公告)日：2021-06-08
申请号：US16326472
申请日：2017-08-24
申请人： Fuchs Petrolub SE
发明人： Paul Roger Littley , John Stirland
摘要： The invention as herein described discloses a test apparatus (1) for testing dust suppression systems and a method for testing dust suppression systems using said test apparatus (1). Said test apparatus (1) comprises a housing (100) with at least two chambers (101,102) being separated from each other by a window (103) which comprises at least one transfer vent (104). Therein particle counting means (110, 120) are detachably mounted to at least one of said two chambers (101,102). Further, the first chamber (101) of said at least two chambers (101,102) comprises a door (121) and is equipped with supply means for supplying the first chamber (101) with particulate free air, and wherein the second chamber (102) of said at least two chambers (101, 102) is equipped with exit means for releasing air from the second chamber (102).
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8.发明授权公开(公告)号：US10969298B2
公开(公告)日：2021-04-06
申请号：US16761778
申请日：2019-09-20
发明人： Wei Liu , Mengde Zhou , Bing Liang , Linlin Tang , Zhuang Yao , Zhengquan Wen , Yang Zhang , Likun Si , Zhenyuan Jia
摘要： A multi-dimensional vibration control method based on piezoelectric ceramic actuator applied to wind tunnel test of aircraft model. The pitch and yaw acceleration sensors arranged on the center of mass of the aircraft model are used to measure the two components of the main vibration acceleration of the aircraft model, and the main vibration vector of the aircraft model is obtained and the real-time vibration plane of the strut is determined. Inertia is introduced to solve the dynamic bending moment on the active section of the multi-dimensional vibration damper, and then the stress distribution on the active section is obtained. The multi-dimensional active vibration control system is adopted to improve the stability and reliability of the active vibration control system of wind tunnel model, extend the service life of piezoelectric ceramic actuator, and ensure the quality of wind tunnel test data and the safety of wind tunnel test.
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公开(公告)号：US10962441B2
公开(公告)日：2021-03-30
申请号：US16310126
申请日：2017-06-13
发明人： Flavio Noca , Guillaume Catry
摘要： The invention relates to a wind generation means (1) comprising at least one wind generation wall (1′) comprising a plurality of wind generation units (11) provided next to each other along at least a first and a second directions so as to form the at least one wind generation wall (1′), wherein each wind generation unit (11) of said plurality of wind generation units comprises at least two ventilation units (111), each ventilation unit within the wind generation unit being individually controlled, characterized in that each wind generation unit (11) of said plurality of wind generation units comprises at least one control unit adapted to control said ventilation units (111) individually, so as to generate an arbitrary wind profile both in space and in time in an air flow path and so as to vary a generated wind physical property of said each wind generation unit along said at least first and second directions, and in that said plurality of wind generation units (11) are detachably attached to each other so that the size and shape of the said wind generation wall (1′) can be varied.
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公开(公告)号：US10890508B2
公开(公告)日：2021-01-12
申请号：US16338356
申请日：2017-08-28
发明人： Fuyou Xu , Donglei Zeng , Jing Yang
摘要： The invention provides a large-amplitude vertical-torsional coupled free vibration device, which belongs to the technical field of vertical-torsional coupled free vibration device for wind tunnel test. The gear blocks are consolidated at both ends of the beam. The screws, beam, and the gear blocks are fixed on the model, and they can fulfil the vertical-torsional coupled free vibration. The toothed plate is attached to the sliding block that iteratively moving along the vertical guide rail which is fixed to the ground. The vertical springs attached to the sliding blocks provide both vertical and torsional linear stiffness for the suspension vibration system. The springs only have vertical linear tensile deformations without any lateral tilt, which ensures the linear vertical and torsional stiffness of the model, and the lateral freedom is effectively restrained. This device can achieve the large-amplitude vertical-torsional coupled free vibration of the model, and the deficiency of the traditional device where springs are apparently tilted and the inefficacy of linear stiffness can be avoided. The lateral vibration is restrained, and it is applicable to large-amplitude vertical-torsional coupled free vibrations.
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