Xianrui Huang - Clifton Park NY, US Evangelos Trifon Laskaris - Schenectady NY, US Kiruba Haran Sivasubramaniam - Clifton Park NY, US James William Bray - Niskayuna NY, US David Thomas Ryan - Niskayuna NY, US James Michael Fogarty - Schenectady NY, US Albert Eugene Steinbach - Schenectady NY, US
A system and method for protecting a superconductor. The system may comprise a current sensor operable to detect a current flowing through the superconductor. The system may comprise a coolant temperature sensor operable to detect the temperature of a cryogenic coolant used to cool the superconductor to a superconductive state. The control circuit is operable to estimate the superconductor temperature based on the current flow and the coolant temperature. The system may also be operable to compare the estimated superconductor temperature to at least one threshold temperature and to initiate a corrective action when the superconductor temperature exceeds the at least one threshold temperature.
Cryogenic Cooling System And Method With Cold Storage Device
Albert Eugene Steinbach - Schenectady NY, US Robert Adolph Ackermann - Schenectady NY, US Xianrui Huang - Clifton Park NY, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F25D 11/00
US Classification:
62437, 62 98, 62 99, 62118, 62201, 62430
Abstract:
A cooling system for providing cryogenic cooling fluid to an apparatus comprises a re-circulation device, a passive cold storage device having a porous matrix of material which directly contacts the cryogenic cooling fluid as the cryogenic cooling fluid passes through the passive cold storage device, a first portion of a fluid communication feed line fluidly connecting the re-circulation device to the passive cold storage device, a second portion of a fluid communication feed line fluidly connecting the passive cold storage device to the apparatus for communicating cryogenic cooling fluid to the apparatus, and a fluid communication return line fluidly connecting the apparatus to the re-circulation device. The passive cold storage device may comprise a regenerative heat exchanger including a porous matrix of metal wire mesh, metal spheres or ceramic spheres.
Cryogenic Cooling System And Method With Backup Cold Storage Device
A cooling system for providing cryogenic cooling fluid to a thermal load, the system comprising: a main cryogenic refrigeration system; a cryogenic cooling fluid feed line having a feed line outlet coupled to the thermal load and a feed line inlet coupled to the cryogenic refrigeration system; a cryogenic cooling fluid return line having a return line inlet coupled to the thermal load and a return line outlet coupled to the cryogenic refrigeration system; a bypass cooling system further comprising isolation valves attached to the feed line and return line wherein each of said valves has a closed position and an open position, a bypass line extending between the feed line and return line, a bypass valve and a cooling device attached to one of said feed line and return line. The bypass cooling system may further include a cold box housing the bypass line and the cooling device, e. g. , an open or closed heat exchanger coupled to a storage tank of cryogen.
System And Method For Cooling A Super-Conducting Device
James William Bray - Niskayuna NY, US Albert Eugene Steinbach - Schenectady NY, US Richard Nils Dawson - Voorheesville NY, US Evangelos Trifon Laskaris - Schenectady NY, US
Assignee:
General Electric Company - Niskayuna NY
International Classification:
H02K 9/00
US Classification:
310 61, 310 52, 310 54
Abstract:
A system and method for cooling a superconductive rotor coil. The system comprises a rotatable shaft coupled to the superconductive rotor coil. The rotatable shaft may comprise an axial passageway extending through the rotatable shaft and a first passageway extending through a wall of the rotatable shaft to the axial passageway. The axial passageway and the first passageway are operable to convey a cryogenic fluid to the superconductive rotor coil through the wall of the rotatable shaft. A cryogenic transfer coupling may be provided to supply cryogenic fluid to the first passageway.
Pin-Style Collector Brush Holder With Rotating Spring Plate, Radial Contact, And Brush-Wear Indicator
Paul August Quail - Ballston Lake NY, US Albert Eugene Steinbach - Schenectady NY, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
H02K 15/00 H02K 13/00
US Classification:
310241, 310240, 310244, 310245, 310246, 310247
Abstract:
An apparatus for holding a brush in contact with a moving conductive surface, the apparatus includes: a rotatable member disposed adjacent to the brush; and a spring coupled to the brush and to the member and configured to bias the brush towards the moving conductive surface; wherein the rotatable member in a first position makes contact with the brush to secure the brush from movement and in a second position releases the brush from the contact to allow the spring to hold the brush in contact with the moving conductive surface.
William Earl Fish - Amsterdam NY, US Jorge Cano Casas - Queretaro, MX Luis Alejandro De Leon Teran - Queretaro, MX Albert Eugene Steinbach - Schenectady NY, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
H02K 13/00
US Classification:
310248, 310239
Abstract:
A brush wear detector system for a dynamoelectric machine is provided. The brush wear detector system includes a brush holder, and at least one brush located within the brush holder. At least one spring is in contact with the brush and the spring operates to force the brush against an electrically conductive member of the dynamoelectric machine. A wireless sensor is configured to detect when a predetermined amount of wear has occurred to the at least one brush, and is also configured to identify the brush having the predetermined amount of wear. The wireless sensor is attached to the at least one brush.
Cooling Of Superconducting Devices By Liquid Storage And Refrigeration Unit
Evangelos Trifon Laskaris - Schenectady NY, US John Arthur Urbahn - Saratoga Springs NY, US Albert Eugene Steinbach - Schenectady NY, US
Assignee:
General Electric Company - Niskyuna NY
International Classification:
F25B 19/00 F17C 7/02
US Classification:
62 511, 62 6, 62 501, 62 507, 622592
Abstract:
A system is disclosed for cooling superconducting devices. The system includes a cryogen cooling system configured to be coupled to the superconducting device and to supply cryogen to the device. The system also includes a cryogen storage system configured to supply cryogen to the device. The system further includes flow control valving configured to selectively isolate the cryogen cooling system from the device, thereby directing a flow of cryogen to the device from the cryogen storage system.
Michael David Kuban - Schenectady NY, US Paul August Quail - Ballston Lake NY, US Albert Eugene Steinbach - Rotterdam NY, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
H02K 13/00 H02K 5/14
US Classification:
310242, 310239, 310244, 310245, 310246, 310247
Abstract:
A brush holder apparatus is disclosed. In one embodiment, the brush holder apparatus includes: a first support member; a second support member affixed to the first support member; a brush retainment member affixed to the first support member and extending substantially parallel with the second support member; and a cam member operably connected to the second support member, the cam member configured to retain a brush against the brush retainment member.