US 2026/0273557 A1 · Power Washer Assemblies and Methods

Abstract

A pressure washer assembly that is operable in multiple modalities includes a pump assembly that communicates a pressurized flow to a valve assembly. The valve assembly includes a pressure relief valve and an unloader valve assembly that are oriented in parallel relative to one another. The pressure relief valve assembly is configured to generate a first pressurized fluid flow and the unloader valve assembly is configured to generate a second fluid flow having a considerably higher pressure than a pressure associated with the first pressurized flow. A valve is disposed between an output of the pump and each of the respective pressure relief valve and unloader valve and is operable to select the cleaning mode associated with operation of the pressure washer.

Claims29

Dependent claims

A power washer assembly comprising:

a pump having a pump inlet that is connectable to a fluid supply and is configured to communicate fluid to a pump outlet during operation of the pump;
an unloader valve disposed downstream of the pump outlet;
a pressure relief valve disposed in a parallel flow stream relative to the unloader valve and wherein the unloader valve and the pressure relief valve operate at different pressures relative to one another;
a first outlet associated with the unloader valve and operable at a first pressure;
and
a second outlet associated with the pressure relief valve and that is operable as a second pressure that is lower than the first pressure associated with the first outlet.

3 more elements

Dependencies are inferred from the claim text.

Power Washer Assemblies and Methods

Life of this patent

Power Washer Assemblies and Methods

Life of this patent

Abstract

Claims29