Prime-mover dynamo plants – Miscellaneous – Drive gearing
Patent
1978-11-17
1980-12-30
Duggan, Donovan F.
Prime-mover dynamo plants
Miscellaneous
Drive gearing
310 11, 310 14, 60641, H02P 904
Patent
active
042425913
ABSTRACT:
The engine comprises a generally toroidal cylinder containing a piston having optional permanent magnets or electromagnets disposed thereon. The piston rotates through the cylinder due to a force exerted on it by expanding vapor. A shutter valve extends across the cylinder at one point and the vapor is injected between the shutter valve and the piston thereby forcing the piston to traverse the extent of the cylinder. An exhaust port is disposed such that the piston will pass it toward the completion of one revolution. The expanding vapor is exhausted through this port after which the piston momentum forces it past the shutter valve where a fresh supply of vapor is injected and the cycle repeats itself. Sensors and valving arrangements are supplied for providing optimum timing of the vapor injection. Also coils are disposed about the toroidal surface through which the magnet carrying piston passes for the production of electrical energy. Alternatively, the rotating piston may be connected to a rotor plate having a centrally located shaft which may be connected to a conventional alternator or mechanical uses. The system may be run by external combustion through the use of a boiler or it may be directly powered by solar energy.
REFERENCES:
patent: 1231193 (1917-06-01), Powers
patent: 1307210 (1919-06-01), Newcomb
patent: 2875695 (1959-03-01), Justice
patent: 2969637 (1961-01-01), Rowekamp
patent: 3401277 (1968-09-01), Larson
patent: 3453462 (1969-07-01), Hsu et al.
patent: 3480804 (1969-11-01), Tipton
patent: 3496871 (1970-02-01), Stengel
patent: 3927329 (1975-12-01), Fawcett et al.
Duggan Donovan F.
Jacobson Harvey B.
O#Brien Clarence A.
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