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Old 03-25-2003, 07:45 PM   #1
baantjer
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Default Auxiliary Power Unit (New Patent)

<center>Abstract</center>

An auxiliary power system for providing electrical power and heat to an indoor area includes an external combustion engine, such as a Stirling cycle engine, for generating mechanical energy and thermal energy. The external combustion engine burns a fuel with substantially complete combustion such that exhaust emissions from the external combustion engine are below a predetermined exhaust level. A generator is coupled to the external combustion engine and converts the mechanical energy produced by the external combustion engine to electrical power. A first power output is used to provide the electrical power produced by the generator. The external combustion engine and generator are disposed within a housing such that the external combustion engine, generator and housing combination is a portable size. The thermal energy generated by the external combustion engine may be used to heat the atmosphere surrounding the housing.

United States Patent 6,536,207
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Old 03-26-2003, 12:00 AM   #2
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Check this out, from the above patent app.-


29. A system for providing power to a personal transport vehicle having a set of wheels including at least one member and a wheel motor coupled to the set of wheels for causing, when powered, locomotion of the personal transport vehicle, the system comprising:

an external combustion engine for generating mechanical energy and thermal energy, the external combustion engine burning a fuel in a burner and having substantially complete combustion such that the exhaust emissions from the external combustion engine are below a predetermined exhaust level;

a fuel supply, coupled to the burner of the external combustion engine, the fuel supply for providing a fuel to the burner at a specified rate of fuel delivery;

a generator coupled to the external combustion engine, the generator for converting the mechanical energy produced by the external combustion engine to electrical power;

a battery having an input and an output, the battery input coupled to the generator and the battery output coupled to the wheel motor, the battery for storing electrical energy provided from the generator at the battery input and for providing power to the wheel motor at the battery output; and

a radiator thermally coupled to the external combustion engine, the radiator containing a fluid for the absorption of excess thermal energy.

30. A mobile auxiliary power unit comprising:

an external combustion engine having a crankshaft characterized by a velocity and a heater head characterized by a head temperature, the external combustion engine for generating mechanical energy and thermal energy, the external combustion engine burning a fuel and having substantially complete combustion such that exhaust emissions from the external combustion engine are below a predetermined exhaust level;

a generator having an output, the generator coupled to the crankshaft of the external combustion engine and for converting the mechanical energy produced by the external combustion engine into electrical power provided to the output of the generator;

a battery having a battery output and coupled to the output of the generator, the battery characterized by a state of charge and providing starting power to the external combustion and providing power to the battery output;

a controller in signal communication with the external combustion engine, the generator and the battery, the controller governing the velocity of the crankshaft and the temperature of the heater head based at least on the state of charge of the battery; and

a wheel motor coupled to the battery output and coupled to a set of wheels, including at least on member such that the wheel motor, when powered by the battery, drives the set of wheels causing the locomotion of the mobile auxiliary power unit.

31. A mobile auxiliary power unit according to claim 30, further including a platform coupled to the set of wheels, the platform for supporting a user.

32. A mobile auxiliary power unit according to claim 30, wherein the external combustion engine is a Stirling cycle engine.




_____________________

Sounds like a reference to our favorite transporter, no? Images section of the patent ap. show a drawing of a standard motor-scooter, but the wording is suggestive of a future power unit for a Segway-type conveyance.

I don't remember a more detailed description of a stirling/Segway marriage.....

Should this be on the main Segway forum? It shouldn't be missed by the masses.
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Old 03-29-2003, 10:00 AM   #3
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Historically (how long does something have to happen to be viewed as historically??) "IT", Ginger, Segway and the Stirling were all thrown together in the same pot for discussion. I believe that it is now clear that while The Stirling engine (or Auxiliary Power Unit) may possibly be applied to the Segway, it is a distinct product that transcends its use as a compnent in the Segway. While as a potential component of the Segway it may very well belong in the main Segway forum, it also deserves special attention for its own importance.

It certainly is not my intention to divert traffic from SegwayChat.com that belongs here, but as an important technology in in its own right, the Stirling engine needs a forum home of its own.

I started a thread for the discussion of this patent on StirlingChat.com here:
http://www.chatfaces.com/StirlingCha...topic.php?t=14





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