公开(公告)号：US10965077B2

公开(公告)日：2021-03-30

申请号：US16559018

申请日：2019-09-03

Applicant: Moog Inc.

Inventor： Norris E. Lewis ,  Barry K. Witherspoon

IPC: H02K31/00 ,  H01R39/24 ,  H01R39/38 ,  H01R39/46 ,  H01R39/20 ,  H01R39/02 ,  H02K9/28 ,  H02K55/06

Abstract: A device {i.e., a slip-ring or a homopolar motor/generator) (40, 50, 80) is adapted to provide electrical contact between a stator and a rotor (41, 83), and includes: a current-carrying brush-spring (31, 84) mounted on the stator, and having two opposite surfaces; a fibrous brush assembly (35, 69) mounted on the conductor, the brush assembly having a bundle of fibers (36, 71) arranged such that the tips of the fibers will engage the rotor for transferring electrical current between the stator and rotor; a ribbon (33, 85) of superconducting material mounted on each opposite surface of the current-carrying brush-spring and communicating with the stator and the brush assembly; and another ribbon (29, 86) of superconducting material mounted on the rotor. The device is submerged in a cryogenic fluid at a temperature below the transition temperatures of the superconducting materials such that the electrical resistivity of the device will be reduced and the current-transfer capability of the device will be increased.

公开(公告)号：US10446995B2

公开(公告)日：2019-10-15

申请号：US15500423

申请日：2014-10-17

Applicant: Moog Inc.

Inventor： Norris E. Lewis ,  Barry K. Witherspoon

IPC: H02K31/00 ,  H01R39/24 ,  H01R39/38 ,  H01R39/46 ,  H01R39/02 ,  H02K9/28 ,  H02K55/06

Abstract: A device (i.e., a slip-ring or a homopolar motor/generator) (40, 50, 80) is adapted to provide electrical contact between a stator and a rotor (41, 83), and includes: a current-carrying brush-spring (31, 84) mounted on the stator, and having two opposite surfaces; a fibrous brush assembly (35, 69) mounted on the conductor, the brush assembly having a bundle of fibers (36, 71) arranged such that the tips of the fibers will engage the rotor for transferring electrical current between the stator and rotor; a ribbon (33, 85) of superconducting material mounted on each opposite surface of the current-carrying brush-spring and communicating with the stator and the brush assembly; and another ribbon (29, 86) of superconducting material mounted on the rotor. The device is submerged in a cryogenic fluid at a temperature below the transition temperatures of the superconducting materials such that the electrical resistivity of the device will be reduced and the current-transfer capability of the device will be increased.

公开(公告)号：US20170250512A1

公开(公告)日：2017-08-31

申请号：US15500423

申请日：2014-10-17

Applicant: Moog Inc.

Inventor： Norris E. Lewis ,  Barry K. Witherspoon

IPC: H01R39/24 ,  H01R39/02 ,  H01R39/38 ,  H02K55/06 ,  H02K9/28

CPC classification number: H01R39/24 ,  H01R39/025 ,  H01R39/20 ,  H01R39/381 ,  H01R39/46 ,  H02K9/28 ,  H02K55/06

Abstract: A device (i.e., a slip-ring or a homopolar motor/generator) (40, 50, 80) is adapted to provide electrical contact between a stator and a rotor (41, 83), and includes: a current-carrying brush-spring (31, 84) mounted on the stator, and having two opposite surfaces; a fibrous brush assembly (35, 69) mounted on the conductor, the brush assembly having a bundle of fibers (36, 71) arranged such that the tips of the fibers will engage the rotor for transferring electrical current between the stator and rotor; a ribbon (33, 85) of superconducting material mounted on each opposite surface of the current-carrying brush-spring and communicating with the stator and the brush assembly; and another ribbon (29, 86) of superconducting material mounted on the rotor. The device is submerged in a cryogenic fluid at a temperature below the transition temperatures of the superconducting materials such that the electrical resistivity of the device will be reduced and the current-transfer capability of the device will be increased.