Pressure washer system
AssigneeFNA Group, Inc.
InventorsGus Alexander, Paulo Rogerio Funk Kolicheski, Michael C Hansen, Javier Penuelaz
Life of this patent
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Abstract
A pressure washer may include a pump configured to receive a relatively low pressure fluid inlet and provide a relatively high pressure fluid outlet. The pressure washer may also include an engine coupled with the pump for driving the pump. An electric starter may be engageable with the engine for starting the engine. A flow sensor may be configured to provide a control signal in response to detecting fluid flow through the pump. The pressure washer may also include a controller configured to actuate the electric starter in response to the control signal when the engine is not operating.
Claims17
A pressure washer comprising:
- a pump having a relatively low pressure fluid inlet and a relatively high pressure fluid outlet;
- an engine coupled with the pump for driving the pump;
- an electric starter for starting the engine, the electric starter is one or more of engageable with an input shaft of the pump and mounted to a pump housing;
- a flow sensor configured to provide a control signal in response to detecting fluid flow through the pump;
- and
- a controller configured to actuate the electric starter in response to the control signal when the engine is not operating, including providing a pulse width modulated current to the electric starter, the controller further providing engine fault detection including monitoring a voltage detected at an engine magneto and discontinuing automated starting upon detection of one or more of no voltage and an insufficient voltage indicating a locked rotor exception to avoid an overcurrent event in the electric starter.
Dependencies are inferred from the claim text.