Spin tuned magnetron having load sharing bearing arrangements

Details Spin tuned magnetron having load sharing bearing arrangements Spin tuned magnetron having load sharing bearing arrangements

1979-09-27

1981-07-28

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Distributed parameter resonator-type magnetron

315 3951, 315 3959, H01J 2550

Patent

active

042812739

ABSTRACT:
A spin tuned magnetron (FIG. 2) includes a spinner 3 which interacts with a magnetron cavity to modulate its frequency of oscillation. The spinner runs in bearings 8, 9 around a shaft 7. The lives of the bearings are a controlling factor in the life of the magnetron.
The outer races OR are fixed in position relative to each other and to the spinner by spacers, 13, 14 and a spring 15 arranged between an abutment 11 and a circlip 12 on the spinner. The inner races are arranged to be moveable relative to each other and to the shaft by virtue of spacers 10 and 17, a spring 16 between the inner races, and a further spring 18. A pole-piece nose 4 is arranged to be screwed down on the shaft to compress the springs 16 and 18 to provide a desired amount of axial float on the spinner. By setting the axial float the bearing load can be shared as desired and thus increase the lives of the bearings.

REFERENCES:
patent: 2559506 (1951-07-01), Kurshan
patent: 3247421 (1966-04-01), Backmark
patent: 3297909 (1967-01-01), Foreman
patent: 3379925 (1968-04-01), Edwards
patent: 3414761 (1968-12-01), Glenfield
patent: 3441795 (1969-04-01), Hynes et al.
patent: 4143300 (1979-03-01), Cutting et al.

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