Cold weather fluidic windshield washer method

Details Cold weather fluidic windshield washer method Cold weather fluidic windshield washer method

1984-05-07

1987-02-24

Cherry, Johnny D.

Fluid sprinkling, spraying, and diffusing

Processes

Of discharge modification of flow varying

2392841, B05B 108

Patent

active

046451269

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.

REFERENCES:
patent: Re27938 (1974-03-01), Bauer
patent: 3423026 (1969-01-01), Carpenter
patent: 3998386 (1976-12-01), Viets et al.
patent: 4052002 (1977-10-01), Stouffer et al.
patent: 4151955 (1979-05-01), Stouffer
patent: 4157161 (1979-06-01), Bauer
patent: 4463904 (1984-08-01), Bray

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