STARTER SYSTEM FOR AN ENGINE
First Claim
1. A pressure washer comprising:
- an engine;
a water pump driven by the engine, the water pump having a low pressure side and a high pressure side, the high pressure side providing pressurized water;
a starter motor coupled to the engine to start the engine;
an energy storage device electrically coupled to the starter motor;
a spray device including an activation device for starting and stopping a flow of water from the spray device;
a pressure sensor located at the low pressure side, the pressure sensor configured to indicate a water pressure relative to a threshold pressure;
a flow sensor located at the low pressure side, the flow sensor configured to indicate a water flow relative to a threshold flow; and
wherein, with the engine off, the starter motor starts the engine when the pressure sensor indicates the water pressure is above the threshold pressure and the flow sensor indicates the water flow is above the threshold flow.
5 Assignments
0 Petitions
Accused Products
Abstract
A pressure washer includes an engine, a water pump driven by the engine, a starter motor coupled to the engine to start the engine, an energy storage device electrically coupled to the starter motor, a spray device including an activation device for starting and stopping a flow of water from the spray device, a pressure sensor, and a flow sensor. The water pump has a low pressure side and a high pressure side. The high pressure side provides pressurized water. The pressure sensor is located at the low pressure side and is configured to indicate a water pressure relative to a threshold pressure. The flow sensor is located at the low pressure side and is configured to indicate a water flow relative to a threshold flow. With the engine off, the starter motor starts the engine when the pressure sensor indicates the water pressure is above the threshold pressure and the flow sensor indicates the water flow is above the threshold flow.
52 Citations
21 Claims
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1. A pressure washer comprising:
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an engine; a water pump driven by the engine, the water pump having a low pressure side and a high pressure side, the high pressure side providing pressurized water; a starter motor coupled to the engine to start the engine; an energy storage device electrically coupled to the starter motor; a spray device including an activation device for starting and stopping a flow of water from the spray device; a pressure sensor located at the low pressure side, the pressure sensor configured to indicate a water pressure relative to a threshold pressure; a flow sensor located at the low pressure side, the flow sensor configured to indicate a water flow relative to a threshold flow; and wherein, with the engine off, the starter motor starts the engine when the pressure sensor indicates the water pressure is above the threshold pressure and the flow sensor indicates the water flow is above the threshold flow. - View Dependent Claims (2, 3, 4)
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5. A pressure washer comprising:
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an engine; a water pump driven by the engine, the water pump providing pressurized water; a starter motor coupled to the engine to start the engine; an energy storage device electrically coupled to the starter motor; a spray device including an activation device for starting and stopping a flow of water from the spray device; a pressure sensor configured to indicate a water pressure relative to a threshold pressure; a flow sensor configured to indicate a water flow relative to a threshold flow; and a controller configured to control the operation of the engine, wherein, with the engine off, the controller activates the starter motor to start the engine when the pressure sensor indicates the water pressure is above the threshold pressure and the flow sensor indicates the water flow is above the threshold flow. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A pressure washer comprising:
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an engine; a water pump driven by the engine, the water pump providing pressurized water; a starter motor coupled to the engine to start the engine; an energy storage device electrically coupled to the starter motor; a spray device including an activation device for starting and stopping a flow of water from the spray device; a sensor configured to indicate a water flow or a water pressure relative to a threshold; and non-programmable circuitry configured to control the operation of the engine, the non-programmable circuitry including a starter motor activation circuit configured to activate the starter motor to start the engine when the sensor indicates the water flow above the threshold or the water pressure above the threshold. - View Dependent Claims (19, 20, 21)
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Specification