Non-contacting flowpath seal

Details Non-contacting flowpath seal Non-contacting flowpath seal

1987-08-03

1988-06-21

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Including additional means causing or controlling fluid flow...

415116, F04D 2908

Patent

active

047521856

ABSTRACT:
A fluid seal arrangement for use in a turbomachine, having first and second adjacent sets of turbine blades arranged for relative rotation about a common machine axis. A main fluid flowpath is established across the blades. Parts of at least one set of blades form a clearance opening which communicates between the main fluid flowpath and an outside region. An annular arm projects over the clearance opening into the outside region to form with an outer periphery of the other set of blades an annular passage communicating with the clearance opening. An annular cavity on the other blades receives a buffer fluid. Jet openings from the cavity direct a pressurized supply of the buffer fluid into the annular passage, to induce a sealing fluid flow from the outside region through the clearance opening and into the main fluid flowpath to prevent leakage of fluid from the main fluid flowpath through the clearance opening.

REFERENCES:
patent: 2685429 (1954-08-01), Auyer
patent: 2963268 (1960-12-01), Smile et al.
patent: 3092393 (1963-06-01), Morley et al.
patent: 3393024 (1968-07-01), Rhodes et al.
patent: 3597102 (1971-08-01), Unsworth et al.
patent: 3975901 (1976-08-01), Hallinger et al.
patent: 3980411 (1976-09-01), Crow
patent: 4161318 (1979-07-01), Stuart et al.
patent: 4317646 (1982-03-01), Steel et al.
patent: 4439982 (1984-04-01), Weiler et al.

Affiliated with

Also associated with

Rating

Non-contacting flowpath seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-contacting flowpath seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-contacting flowpath seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-927104