Pressure washer device employing a cool bypass

摘要

A pressure washer device is provided that employs an unloader bypass valve that directs a selective amount of fluid via a small diameter bypass line back to a water storage tank. The small amount of fluid allows for the pump to remain working and introduces cooler water into a bypass circuit, thereby allowing the thermal relief valve to be omitted. The diameter of the bypass line is of such a diameter to prevent siphonage of the detergent associated with the pressure washer system into the water storage tank as well.

主权项

1. A pressure washer system comprising:
a water tank; a pump; a pump inlet conduit having a first end associated with said water tank and a second end associated with the pump; a pump outlet conduit having a first end associated with the pump and a second end associated with a spray gun having a trigger; a bypass valve in fluidic communication with the pump outlet conduit; a bypass conduit connecting the bypass valve with the water tank, a portion of the bypass conduit having a diameter that is less than that of the pump inlet conduit; a detergent container in fluidic communication with the pump inlet conduit; wherein when the spray gun trigger is in a first position fluid is allowed to exit the system and when in a second position fluid is not allowed to exit the system; wherein when the trigger is in the second position fluid is directed from the bypass valve through the bypass conduit to the water tank; and wherein when the trigger is in the second position siphoning of detergent from the detergent container into the pump does not occur.