Patent ID: 7614412
Filing Date: 2009-11-10
Classification: B60S,F04D,F16K,G01F,Y10T

Abstract:
1. A washer fluid delivery apparatus comprising: a tank for storing washer fluid; a washer pump fluidly coupled to the tank by an inlet conduit, the washer pump configured to suck the washer fluid from the tank and to discharge the washer fluid; a washer nozzle having a plurality of spray tips configured to deliver the washer fluid to a windshield and having a pressure-sensitive valve operable to move between a high-pressure position in which the spray tips are open and a low-pressure position in which at least one of the spray tips is open and at least one of the spray tips is closed; a valve member coupled to the inlet conduit and moveable between an open position and a closed position, wherein a cross-sectional area of a the inlet conduit is greater when the valve is in the open position than when the valve is in the closed position; and a float coupled to the valve member and configured to, in response to a buoyant force, move the valve member between the first position and the second position, wherein the pressure-sensitive valve is configured to move between the high-pressure position and the low-pressure position in response to a position of the valve member.