Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1983-07-18
1987-01-20
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 52, H02K 900
Patent
active
046381945
ABSTRACT:
Presented is a new type of heat engine and process cycle utilizing, through the medium of superconductivity, a singular high temperature heat reservoir as a source of motive fuel directed into a low temperature region, the net effect being to cyclically process a superconductive substance magneto-calorically in H-T space so as to convert a thermal energies input directly into an available work energies output, without any need for a pressed, externally derived temperature variation, nor low temperature reservoir, for absorption of waste heats, to accomplish same, and which process is adaptable for both the direct generation of mechanical energy or electrical energy, in either mode being called a "Keefengine". The process of such conversions of ambient heat into utilizable work being called "Thermosynthesis", and being the product of the thermodynamic cycling of an "Envelopment", consisting of any number of mutually insulated "Segments" of size "d", where .sqroot.5.lambda.(T)<d<.xi.(T), such size being called "coherently dimensioned", and being composed of any superconductor where .sqroot.5.lambda.(T)<.xi.(T). Further, output energy expectancies are on the order of 50 horse power per cubic foot, depending on design optimization.
REFERENCES:
patent: 3252018 (1966-05-01), Drautman
patent: 3277322 (1966-10-01), Berlincourt
patent: 3292021 (1966-12-01), Hoag
patent: 3336489 (1962-08-01), Volger
patent: 3402307 (1968-09-01), Pearl
patent: 3443128 (1969-05-01), Fakan
patent: 3560773 (1971-02-01), McFarlane
"A Thermodynamic Comparison Between the Magneto-Mechanically and Magneto-Calorically Induced Superconductive Phase Transitions in a Type I Superconductor Culminating in a Proposal for a New Type of Superconductive Motor", Peter D. Keefe, Master of Science Thesis, Univ. of Detroit, 1974.
"Approach to the Ideal Magnetic Circuit Concept Through Superconductivity", P. P. Cioffi, J. App. Phy., 33, 875 (1962).
"Thermodynamics of a Superconducting Energy Converter", Marvin Chester, J. App. Phy., 33, 643 (1962).
"Cooling by Adiabatic Magnetization of Superconductors", M. Yaqub, Cryogenics, Dec. 1960, 101.
"Further Calorimetric Experiments on Thallium", W. H. Keesom and J. A. Kok, Physica I, 595 (1934).
"An Experiment on the Mechanism of Superconductivity", J. G. Daunt and K. Mendelssohn, Proc. Roy. Soc., A185, 225 (1946).
"Measurements of the Latent Heat of Tin While Passing from the Superconductive to the Non-Superconductive State at Constant Temperature", W. H. Keesom and P. H. Van Laer, Physica IV, 487 (1937).
"Magnetic Hysteresis in Superconducting Colloids", A. B. Pippard, Phil. Mag., 43, 273 (1952).
"Superconducting Transitions in Tin Whiskers", O. S. Lutes, and E. Maxwell, Phy. Rev., 97, 1718 (1955).
"Direct Experimental Measurement of the Magnetic Field Dependence of the Superconducting Energy Gap of Aluminum", D. H. Douglass, Jr., Phy. Rev. Lett., 7, 14 (1961).
"Specific Heat of Superconducting Fine Particles of Tin. I. Fluctuations in Zero Magnetic Field and II. Fluctuations under Magnetic Field, Critical Field and Transition Temperature", Takefumi Tsuboi and Takao Suzuki, J. Phy., Soc. of Jap. 42, 437 (1977) and 43, 444 (1977).
"Magnetic Hysteresis in Superconducting Thin Films", Hollis L. Caswell, J. App. Phy. 36, 80 (1965).
"Kinetics of the Phase Transition in Superconductors", T. E. Faber and A. B. Pippard, Prog. Low Temp. Phy. VI, 172 (1955).
"The Magnetic Forces on Superconductores and Their Applications for Magnetic Bearings", T. A. Buchhold, Cryogenics, Jun. 1961, 203.
Coughlin William J.
Duggan Donovan F.
Keefe Peter D.
LandOfFree
Coherent magneto-caloric effect superconductive heat engine proc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coherent magneto-caloric effect superconductive heat engine proc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coherent magneto-caloric effect superconductive heat engine proc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2136462