Headlamp cleaning device capable of attaining a constant cleanin

Details Headlamp cleaning device capable of attaining a constant cleanin Headlamp cleaning device capable of attaining a constant cleanin

1994-12-28

1996-03-05

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

With nonautomatic control means

318443, 318479, 318DIG2, 307 101, 307130, 2392842, 15250002, B60S 100

Patent

active

054970580

ABSTRACT:
It is an object of the present invention to offer a headlamp cleaning device which is always capable of attaining a constant cleaning capacity by keeping the ejected quantity of the cleaning fluid constant for a single cleaning operation without any regard to the fluctuations in the voltage of the electric power in the power source.
The headlamp cleaning device according to the present invention is provided with an electric power source voltage monitoring means which monitors the power source voltage as applied to a cleaning device motor. This device furnishes the power source voltage to the electric power supply time setting means. When a cleaning device switch 9 is turned ON, the electric power supply time setting means 10-2 sets the driving time T to a longer time period when the value of the electric power source voltage is low, but sets the driving time T to a shorter period when the value of the electric power source voltage is high. Additionally, the electric power supply time setting means supplies electric power from the electric power source to the cleaning device motor 7 just for the driving time T thus set. This operation puts the pump into operation, thereby ejecting the cleaning water stored in the tank through the nozzle.

REFERENCES:
patent: 4282445 (1981-08-01), Ditzer
patent: 4768716 (1988-09-01), Buchanan, Jr. et al.
patent: 4851745 (1989-07-01), Ponziani
patent: 5012977 (1991-05-01), Karklins et al.
patent: 5073722 (1991-12-01), Tohge et al.

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