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US 8,507,830 B2Granted
Hybrid welding systems and devices
AssigneeIllinois Tool Works Inc.
InventorBruce Patrick Albrecht
Life of this patent
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Abstract
A hybrid welding device including a fuel cell and an energy storage device that cooperate to power a welding operation and/or an auxiliary operation are provided. In some embodiments, the hybrid welding device may also include an engine coupled to a generator that is configured to supplement the power provided by the fuel cell and/or the energy storage device. The hybrid welding device may be adapted to provide power for a welding operation and/or an auxiliary operation when operated as a standalone unit and/or when connected to a primary source of utility power.
Claims5
A hybrid welding device, comprising:
- a fuel cell configured to consume a fuel source to generate a substantially constant first power output;
- an engine configured to generate a second power output;
- an energy storage device configured to discharge a supply of stored energy to provide a third power output;
- and
- power conversion circuitry configured to receive power from the fuel cell, the energy storage device, and the engine and to convert the received power output to a welding power output;
- wherein at least one of the second and third power outputs supplements the first power output when the welding power output exceeds the first power output.
3 more elements
Dependencies are inferred from the claim text.