Method of maintaining optimum minimum operating clearance betwee

Details Method of maintaining optimum minimum operating clearance betwee Method of maintaining optimum minimum operating clearance betwee

1978-01-27

1979-04-17

Casaregola, Louis J.

Rotary kinetic fluid motors or pumps

Method of operation

415174, 415200, F01D 1108

Patent

active

041498232

ABSTRACT:
A method of operating a machine which incorporates a rotor component and a stator component between which there exists a clearance space, wherein the clearance space is at least partially filled with at least one abradable element. The abradable element is formed of a material which grows continuously with regard to its dimensions under the operational conditions of the machine. The rate of such dimensional growth is adjusted such that there is established at least repeated contact between the abradable element and an oppositely located surface to bring about repeated abrasion of the abradable element in order to maintain the operating clearance at a size promoting efficient operation of the machine.

REFERENCES:
patent: 2930521 (1960-03-01), Koehring
patent: 3817719 (1974-06-01), Schilke

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