Cold weather fluidic fan spray devices and method
    1.
    发明授权
    Cold weather fluidic fan spray devices and method 失效
    冷天气流体风机喷淋装置及方法

    公开(公告)号:US4463904A

    公开(公告)日:1984-08-07

    申请号:US959112

    申请日:1978-11-08

    CPC classification number: B60S1/52 B05B1/08 F15C1/22

    Abstract: Liquid fan spray system for cyclically deflecting a liquid jet between extreme positions defined by a pair of end walls is assured of cold weather operation by expanding the liquid power jet. In the preferred embodiment, one boundary wall of the oscillator is tapered about 5.degree. from the power nozzle to the outlet throat, and the outlet or throat has the substantially same cross-sectional area maintained for a given oscillatory angle by closing down the lateral extremities of the outlet throat. This assures cold weather starting when the liquid has increased surface tension and viscosity while at the same time maintaining essentially the same fan angle of the cyclically deflected power jet. The invention is particularly useful in providing all weather oscillation in windshield washer systems for automobiles.

    Abstract translation: 用于使液体射流在由一对端壁限定的极限位置之间循环偏转的液体风扇喷射系统通过扩大液体动力射流来确保寒冷的天气操作。 在优选实施例中,振荡器的一个边界壁从动力喷嘴到出口喉部渐缩大约5度,并且出口或喉部通过闭合侧面具有保持给定振荡角的基本相同的横截面面积 的出口喉咙。 这确保了当液体具有增加的表面张力和粘度而同时保持基本上与周期性偏转的功率射流基本上相同的风扇角度时的寒冷天气。 本发明对于在汽车的挡风玻璃清洗器系统中提供全天候振动特别有用。

    Cold weather fluidic windshield washer method
    2.
    发明授权
    Cold weather fluidic windshield washer method 失效
    冷天气流体挡风玻璃清洗机

    公开(公告)号:US4645126A

    公开(公告)日:1987-02-24

    申请号:US606554

    申请日:1984-05-07

    CPC classification number: F15C1/22 B05B1/08 B60S1/52

    Abstract: Liquid fan spray system for cyclically deflecting a liquid jet between extreme positions defined by a pair of end walls is assured of cold weather operation by expanding the liquid power jet. In the preferred embodiment, one boundary wall of the oscillator is tapered about 5.degree. from the power nozzle to the outlet throat, and the outlet or throat has the substantially same cross-sectional area maintained for a given oscillatory angle by closing down the lateral extremities of the outlet throat. This assures cold weather starting when the liquid has increased surface tension and viscosity while at the same time maintaining essentially the same fan angle of the cyclically deflected power jet. The invention is particularly useful in providing all weather oscillation in windshield washer systems for automobiles.

    Abstract translation: 用于使液体射流在由一对端壁限定的极限位置之间循环偏转的液体风扇喷射系统通过扩大液体动力射流来确保寒冷的天气操作。 在优选实施例中,振荡器的一个边界壁从动力喷嘴到出口喉部渐缩大约5度,并且出口或喉部通过闭合侧面具有保持给定振荡角的基本相同的横截面面积 的出口喉咙。 这确保了当液体具有增加的表面张力和粘度而同时保持基本上与周期性偏转的功率射流基本上相同的风扇角度时的寒冷天气。 本发明对于在汽车的挡风玻璃清洗器系统中提供全天候振动特别有用。

    Controlled fluid dispersal techniques
    3.
    发明授权
    Controlled fluid dispersal techniques 失效
    控制流体分散技术

    公开(公告)号:US4052002A

    公开(公告)日:1977-10-04

    申请号:US618208

    申请日:1975-09-30

    Abstract: A liquid spray is characterized by a liquid jet which is cyclically deflected at a high frequency such that it breaks up into a fan-shaped spray pattern in which the fluid distribution and droplet size can be controlled. Jet deflection is accomplished with energy in the pressurized liquid itself. In a preferred embodiment, the spray is produced by a fluidic oscillator, of the type having a flow-reversing interaction region terminated by an outlet throat from which outlet walls diverge, configured to establish a static operating pressure at the upstream end of the interaction region which is positive relative to the pressure in the outlet region. When the power jet is directed along one outlet wall it merges with working fluid outflow from a control passage communicating from that outlet wall to the upstream end of the interaction, whereas the opposite control passage remains filled with operating fluid because of the positive interaction region pressure, with the result that neither working nor ambient fluid is ingested into the interaction region from the outlet region. Oscillation is produced by the fact that the pressure in the control passage conducting outflow is less than the pressure in the other control passage, the differential pressure deflecting the jet and thereby reversing the pressure conditions in the control passages. The configuration for achieving this operation is characterized by: an outlet throat sufficiently narrow to permit the egressing oscillating jet to continuously isolate the interaction and outlet regions; and a short interaction region. The oscillator is capable of delivering liquid sprays having uniform spatial distribution and uniform droplet size and is also operable with air or fluidized solid working fluid. Oscillator frequency depends upon size of the oscillator and the applied pressure.

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