Axial flow turbine

Details Axial flow turbine Axial flow turbine

1987-09-21

1989-02-07

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

415DIG1, G01D 2530

Patent

active

048028215

ABSTRACT:
In an axial flow gas turbine with reaction blading, whose outlet rotor blades (14) are followed by a diffuser with axial outlet into an exhaust gas pipe (13), the kink angles of the diffuser inlet both at the hub (10) and at the cylinder (9) are fixed exclusively for the purpose of evening out the energy profile over the duct height at the outlet from the last rotor blade row in order to shorten the diffuser system and to optimise it in part load operation. In addition, a mechanism provided to remove swirl from the swirling flow in the form of profile ribs (17). Where the outlet rotor blades have a high Mach number flow, which leads to a large opening angle of the blading, the diffuser is subdivided into several partial diffusers (16) via sheet metal guides (15).

REFERENCES:
patent: 2538739 (1951-01-01), Troller
patent: 2828939 (1958-04-01), Grey
patent: 2844001 (1958-07-01), Alford
patent: 3552877 (1971-01-01), Christ et al.
patent: 4013378 (1977-03-01), Herzog
patent: 4214452 (1980-07-01), Riollet et al.
patent: 4391566 (1983-07-01), Takamura

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