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US 6,982,398 B2Granted
Fuel saving engine driven welding-type device and method of use
AssigneeIllinois Tool Works Inc.
InventorBruce Albrecht
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a welding-type power source that includes a power source housing and an engine arranged in the power source housing to supply electrical power. An energy storage device is included that is in rechargeable association with the internal combustion engine and arranged to provide welding-type power for at least a given period.
Claims35
A method of generating a weld power from alternate power supplies comprising the steps of:
- generating a weld power from an input power supplied by an energy storage device;
- starting a fossil fuel driven engine upon generation of the weld power;
- and
- upon completion of starting the fossil fuel driven engine, automatically transferring the supplied input power from the energy storage device to a power delivered from the fossil fuel driven engine without interruption of the weld power.
1 more element
A welding-type apparatus comprising:
- an engine driven generator;
- a converter connected to the engine driven generator and configured to generate a welding-type power;
- and
- an energy storage device connected to the converter and configured to generate the welding-type power until the output of the engine driven generator is sufficient to provide the welding-type power.
1 more element
A welding-type power source comprising:
- a housing;
- an internal combustion engine disclosed in the housing;
- a generator operatively connected to the internal combustion engine and configured to deliver a desired welding-type power;
- and
- an energy storage device rechargeably connected to the generator and configured to deliver the desired welding-type power until an output of the generator is sufficient to deliver the desired welding-type power.
2 more elements
A dual source individually and cooperatively powered welding-type device comprising:
- a power supply constructed to receive a power signal and configured to generate a desired weld power from the power signal;
- an engine connected to a generator, the generator connected to the power supply and constructed to provide the power signal;
- a battery connected to the power supply and constructed to provide the power signal;
- and
- a controller connected to the power supply and constructed to switch a source of the power signal between the generator and the battery based on an operating condition of the engine.
2 more elements
Dependencies are inferred from the claim text.