Cooling fluid ejector

Details Cooling fluid ejector Cooling fluid ejector

1993-06-23

1994-10-04

Look, Edward K.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

4151737, 415116, F04D 2938

Patent

active

053520874

ABSTRACT:
A turbine section having a seal cavity with effectively continuous flow surfaces is disclosed. Various construction details are developed which disclose a fluid cooled stator assembly having a plurality of ejectors for flowing cooling fluid into the seal cavity. In one embodiment, the ejectors (114) include a wall (132) which have circumferentially spaced mating edges (134, 136) arranged in a cascade type configuration. The arrangement of the walls provides an effectively continuous flow surface for the radially flowing annulus of cooling fluid within a seal cavity (108). In an alternate embodiment, an opening (152) between adjacent mating edges (154, 156) provides access to mechanical fasteners (162) which retain a sealing shroud (164) to a stator assembly (150).

REFERENCES:
patent: 3135215 (1964-06-01), Smith
patent: 4265590 (1981-05-01), Davies
patent: 4553901 (1985-11-01), Laurello
patent: 4627233 (1986-12-01), Baran, Jr.
patent: 4645424 (1987-02-01), Peters
patent: 4659289 (1987-04-01), Kalogeros
patent: 4752185 (1988-06-01), Butler et al.
patent: 4869640 (1989-09-01), Schwarz et al.

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