Air sealing for turbomachines

Details Air sealing for turbomachines Air sealing for turbomachines

1981-07-27

1984-01-10

Coe, Philip R.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

Circumferentially spaced nozzle or stator segments

416 95, 415115, 415180, F01D 508

Patent

active

044250797

ABSTRACT:
A stator assembly for a turbomachine having a sealing plate which co-operates with sealing members on an adjacent rotor assembly to form air seals. The sealing plate is provided with a thermal slugging mass, the thermal response of which controls the rate of expansion and contraction of the sealing plate to match that of the rotor. In this way tip clearances between the stationary and rotating parts of the air seals are maintained substantially uniform throughout all operating conditions of the turbomachine.

REFERENCES:
patent: 3635586 (1972-01-01), Kent et al.
patent: 4086757 (1978-05-01), Karstensen et al.
patent: 4127357 (1978-11-01), Patterson
patent: 4306834 (1981-12-01), Lee

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