Patent ID: 7337791
Filing Date: 2008-03-04
Classification: B60S

Abstract:
1. A vehicular wash system defining a vehicle wash area, the wash system comprising: a source of hot water; a spray device for delivering water to the surface of a vehicle positioned in the vehicle wash area; a pump assembly having an in put connected to the hot water source and an output connected to the spray device for delivering water to the spray device; and a conduit network interconnecting the hot water source and the pump assembly input, the pump assembly output and the spray device, and the pump assembly output and the hot water source; a valve assembly fluidly connected to the conduit network in between the pump assembly output and the spray device; and a control unit including a temperature sensor located proximate to the valve assembly; wherein the control unit is configured to actuate the valve assembly to return the pump assembly output to the hot water source in response to a sensed water temperature less than a predetermined temperature, as sensed by the temperature sensor, and the control unit is configured to actuate the valve assembly to route the pump assembly output to the spray device in response to a sensed water temperature greater than a predetermined temperature, as sensed by the temperature sensor.