STANLEY W PETTY
Engineering in Boxford, MA
License number
Massachusetts 19185
Expiration Date
Jun 30, 1984
Type
Mechanical Engineer
Address
Address
Boxford, MA 01921
Professional information
Mhd Generator With Uniform Current Distribution
US Patent:
3940640, Feb 24, 1976
Filed:
Feb 15, 1974
Appl. No.:
5/442802
Inventors:
Stanley W. Petty - Boxford MA
Richard J. Rosa - Cambridge MA
George R. Enos - Concord NH
Richard J. Rosa - Cambridge MA
George R. Enos - Concord NH
Assignee:
Avco Everett Research Laboratory, Inc. - Everett MA
International Classification:
H02n 402
US Classification:
310 11
Abstract:
An MHD generator includes external electrical connectors between pairs of the discrete electrodes in opposite walls of the generator duct, which may lie in a plane at an angle to the direction of gas flow. The electrical connection includes a passive or an active circuit which controls current flow between the connected electrodes to insure that uniform current flow along the length of the duct and that excessive current flow through such discrete electrodes in opposite walls of the duct do not exceed a damaging limit which may otherwise occur. Indicator means when coupled to the circuits in accordance with the invention comprise diagnostic means which provide a graphic representation of current distribution along the length of the generator duct.
Mhd Generator With Uniform Voltage Distribution
US Patent:
3940639, Feb 24, 1976
Filed:
Feb 15, 1974
Appl. No.:
5/442800
Inventors:
George R. Enos - Concord NH
Richard J. Rosa - Cambridge MA
Stanley W. Petty - Boxford MA
Richard J. Rosa - Cambridge MA
Stanley W. Petty - Boxford MA
Assignee:
Avco Everett Research Laboratory, Inc. - Everett MA
International Classification:
H02n 402
US Classification:
310 11
Abstract:
An MHD generator includes external electrical connectors between adjacent discrete electrodes in one wall of the generator duct, which has opposed electrodes which may lie in a plane at an angle to the direction of gas flow. The electrical connection includes a circuit which adjusts the voltage between the connected adjacent electrodes to insure that the Hall voltage differential between the discrete electrodes which are adjacent to each other in the same wall of the duct does not exceed the damaging breakdown voltage. Indicator means when coupled to the circuits in accordance with the invention comprise diagnostic means which provide a graphic representation of voltage distribution along the length of the generator duct.