US 2025/0353043 A1 · MULTI-CAPACITY PRESSURIZED FLUID WASHER APPARATUS

Abstract

A pressure washer apparatus can have multiple output capacities defined by distinct water flow or pressurization paths. An operator can switch between flow or pressurization paths to vary pressurized water output, or combine multiple flow or pressurization paths to further vary pressurized water output. Different pressurized water outputs can have different fluid pressures, differing fluid flow rates, or the like, or a suitable combination of the foregoing. Some pressure washer apparatuses can achieve multiple output capacities while preserving a high power efficiency. Such an apparatus can be suitable for an electric powered device having relatively low power consumption yet favorable washing performance.

Claims20

Dependent claims

A pressure washer apparatus, comprising:

a frame;
an electric motor secured to the frame for generating mechanical power;
a water inlet for receiving water;
a pump secured to the frame that receives water from the water inlet and mechanical power from the electric motor and generates pressurized water having a first increased pressure and a first fluid flow rate;
a sprayer device for directing output water having the first increased pressure and the first fluid flow rate;
an operator trigger for selectively releasing the output water at the sprayer device;
and
an auxiliary output modality which, in response to activation of an operator input, increases the first increased pressure of the output water to a second increased pressure or increases the first fluid flow rate of the output water to a second fluid flow rate.

5 more elements

A pressure washer apparatus, comprising:

an alternating current (AC) power input;
an AC to direct current (DC) converter that converts AC power received at the AC power input to DC power;
a DC electric motor that receives the DC power and outputs mechanical power;
a water inlet that receives water at an input pressure;
a pump that receives water from the water inlet and receives the mechanical power from the DC electric motor, and increases pressure of the water from the input pressure to a first increased pressure;
a pressurized water output for selective release of output water at the first increased pressure and a first fluid flow rate;
an operator trigger for activating and deactivating the release of the output water at the pressurized water output;
and
an auxiliary water output selectively activatable to generate second pressurized water and increase the first fluid flow rate of the output water at the pressurized water output to a second fluid flow rate, larger than the first fluid flow rate.

6 more elements

Dependencies are inferred from the claim text.

Multi-capacity pressurized fluid washer apparatus

Life of this patent

Multi-capacity pressurized fluid washer apparatus

Life of this patent

Abstract

Claims20