Rotor tip clearance control devices

Details Rotor tip clearance control devices Rotor tip clearance control devices

1985-10-02

1987-04-14

Hershkovitz, Abraham

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

Radially sliding

415174, 415127, F01D 1108

Patent

active

046574794

ABSTRACT:
A shroud for a gas turbine engine rotor stage is divided into a number of arcuate segments each of which is a trapezium. The segments are urged together by compression springs which attempts to make the assembly lengthen peripherally, by virtue of the chamfered ends 30 of the segments riding up each other. The completely circular shape of the shroud prevents that movement but as a result, a hoop load is generated which tends to move the segments radially outwards, thus achieving the same effect, along with a consequent increase in diameter. A cam ring and pins are used to control and reverse the movement, as desired. The shroud diameter can thus be altered to suit rotor expansion and contraction.

REFERENCES:
patent: 930908 (1909-08-01), Westinghouse
patent: 1593031 (1926-07-01), Parsons et al.
patent: 2416268 (1947-02-01), Nagler
patent: 3740168 (1973-06-01), Hug et al.
patent: 4248569 (1981-02-01), Thebert
patent: 4312599 (1982-01-01), Darolia
patent: 4400135 (1983-08-01), Thebert
patent: 4472108 (1984-09-01), Pask
patent: 4576548 (1986-03-01), Smed et al.

Affiliated with

Also associated with

Rating

Rotor tip clearance control devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotor tip clearance control devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotor tip clearance control devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1782327