Truck wash automatic chemical ratio proportioning

Details Truck wash automatic chemical ratio proportioning Truck wash automatic chemical ratio proportioning

2005-07-26

2005-07-26

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With selective proportioning or correlated flow for plural...

C239S063000, C239S066000, C239S067000, C239S068000, C239S407000, C239S413000

Reexamination Certificate

active

06921027

ABSTRACT:
A chemical ratio proportioning apparatus (100, 200) intended primarily for use in a wash bay (10) of a vehicle wash system. A gantry (14) and spray wands (18) are used for washing a vehicle (12). A quantity of solvent such as water (109) is provided under pressure from water pumps (104, 202). A chemical (114, 114a) is provided under pressure from chemical pumps (124, 206, 206a), mixed in correct proportion under control of a control unit (120) and flow sensors112and118.The control unit controls metering devices such as a metering pump (124) and/or one or more proportioning solenoid valves (208, 208a) to control the quantity of chemical (114, 114a) entering the system.

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