Method of constructing a rotor assembly for homopolar generator

Details Method of constructing a rotor assembly for homopolar generator Method of constructing a rotor assembly for homopolar generator

1988-10-14

1989-08-22

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29447, 310 42, 310178, H02K 1502

Patent

active

048583049

ABSTRACT:
A homopolar generator (HPG) having the stator and an inner brush mechanism housed within the machine support structure utilizes a rotor separated into halves electrically insulated from each other, so as to fit around the stator and brush mechanism. A shaft is mounted in the support structure to carry the rotor. A first rotor half is thermally shrunk-fit onto the shaft, and the second rotor half is hydraulically expansion fit thereon. To hydraulically fit the second rotor on the shaft, a shaft is provided having a downward taper from its midpoint toward one end. The shaft also has a circumferential groove and a port therethrough from the end of the taper for communicating high pressure oil from an external pump to the shaft-rotor interface. High-pressure seals on each side of the groove prevent leakage. The application of high-pressure oil expands the bore in the rotor half and shrinks the shaft diameter. A hydraulic ram then pushes the rotor half onto the tapered shaft, whereupon the pressure is released and the rotor half bore contracts against the shaft.

REFERENCES:
patent: 2488779 (1949-11-01), Kooyman
patent: 3419957 (1969-01-01), Stone
patent: 3469137 (1969-09-01), Hihfu-Koivisto
patent: 4544874 (1985-10-01), Weldon

Affiliated with

Also associated with

Rating

Method of constructing a rotor assembly for homopolar generator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of constructing a rotor assembly for homopolar generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of constructing a rotor assembly for homopolar generator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2411701