Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Means to seal radial flow pump runner inlet from outlet
Patent
1978-11-08
1982-01-19
Casaregola, Louis J.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Means to seal radial flow pump runner inlet from outlet
415116, F02C 712, F02C 728
Patent
active
043114318
ABSTRACT:
A turbine engine construction of the type having a support housing, a compressor and at least one turbine stage rotatably mounted in the support housing, said turbine stage having an annular rotating shroud secured around its outer periphery while a static shroud is connected to the support housing coaxially around and spaced radially outwardly from the rotating shroud thus defining a clearance space between the two shrouds. The novelty of the invention resides in a system for cooling both the static and rotating shrouds and for also simultaneously substantially reducing or eliminating the leakage of hot gases through the clearance space between the shrouds. In the preferred form of the invention, this system comprises a plurality of circumferentially spaced ports formed through the housing and/or static shroud. Each port has one end open to the compressed air outlet from the compressor and its other end open to the clearance space between the shrouds. The ports are of a number and dimension sufficient to create a cold air barrier in the clearance space.
REFERENCES:
patent: 3034298 (1962-05-01), White
patent: 3703808 (1972-11-01), Stearns
patent: 4161318 (1979-07-01), Stuart et al.
Casaregola Louis J.
Teledyne Industries Inc.
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