Importance

Loading Importance Indicators...

Abstract

A pressurization system for a tank on a water truck includes a pipe connected at one end via a remotely controllable three-way valve directly into the engine exhaust system of the truck and at the other end into a top portion of the water tank. Engine exhaust is thus selectively introduced into the water tank to pressurize the tank. The tank includes a top-mounted fill opening with an internal, counter-weighted flapper valve. With the internal flapper valve, the truck can be driven beneath a high volume water source and water from the source, when it hits the counter-weighted flapper valve, opens the valve by urging the flapper against the action of the counter-weight, but the flapper valve is once again closed by action of the counter-weight when water flow ceases. An anti-siphon orifice in a water outlet conduit serves to prevent water from freezing in the outlet conduit once pressurization is stopped.

Loading the Abstract Image...

First Claim