Patent ID: 8632021
Filing Date: 2014-01-21
Classification: F04B

Abstract:
1. A pump head assembly for a pressure washer, comprising: a fluid inlet; a first water outlet; a pressurizing unit disposed between the first water outlet and the fluid inlet; wherein the pump head assembly comprises a separate second water outlet, and a throttle orifice disposed between the fluid inlet and the second water outlet; wherein the pressurizing unit being used for driving the pump head assembly to output high pressure water, so that the pressure of the fluid at the first outlet being greater than the pressure of the fluid at the second outlet; and wherein a liquid suction port for cleaning compound flowing through is disposed at an outlet end of the throttle orifice; wherein a liquid intake shifter is disposed between the fluid inlet and the second water outlet, the liquid intake shifter being shiftable between a first position that the fluid inlet and the second water outlet connected through the liquid intake shifter and the throttle orifice, and a second position that the fluid inlet and the second water outlet connected through the liquid intake shifter and a passage independent from the throttle orifice.