Self-acting automatic clearance control apparatus for a turbine

Details Self-acting automatic clearance control apparatus for a turbine Self-acting automatic clearance control apparatus for a turbine

1981-09-30

1984-07-10

Coe, Philip R.

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Casing, runner, or shaft position or extent of motion...

415 47, F01D 2104

Patent

active

044590822

ABSTRACT:
A self-acting automatic clearance control apparatus for a turbine of the type which includes a turbine rotor mounted for rotation in a housing, the turbine rotor having cooperatively disposed on one side thereof a nozzle and on the other side an exhaust duct, the apparatus includes a control device positioned adjacent to the turbine rotor. The control device is coupled to the nozzle and the exhaust duct. The control device is responsive to changes in dimensions of said turbine rotor as the turbine operates over a range of temperatures to thereby change the relative position of the control device in respect of the turbine rotor whereby the clearance between the nozzle and the exhaust duct in respect to the turbine rotor is maintained automatically.

REFERENCES:
patent: B471735 (1976-02-01), Jaegtnes
patent: 1154777 (1915-09-01), Kieser
patent: 2598176 (1952-05-01), Johnstone
patent: 2992618 (1961-07-01), Means
patent: 3002374 (1961-10-01), Jacobs
patent: 3039737 (1962-06-01), Kolthoff, Jr.
patent: 3516757 (1970-06-01), Baumann
patent: 4063742 (1977-12-01), Watkins, Jr.
patent: 4334822 (1982-06-01), Rossmann

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