Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means
Patent
1987-06-17
1988-03-15
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
416 39, 416198A, 415115, F01D 518, F01D 508
Patent
active
047309822
ABSTRACT:
A blade root sockets provided in the discs of a turbine rotor have passages for cooling air which are arranged to be variably blocked by closure means carried by the upstream and downstream ends of the labyrinth carriers disposed between the discs. The labyrinth carriers are of the pin-like type and are able to expand and contract in response to the temperature of the gas flow passing through the turbine, moving the closure means to open or close the passages. The positions of the closure means adjacent the passages are determined by the relative dimensions and the thermal expansion coefficients of the discs and the labyrinth carriers, and may be chosen to provide full cooling air flow during engine acceleration, a reduced flow during stable operation, and a very restricted flow to the first disc only during deceleration.
REFERENCES:
patent: 2656147 (1953-10-01), Brownhill et al.
patent: 2807434 (1957-09-01), Zimmerman
patent: 2906494 (1959-09-01), McCarthy et al.
patent: 3056579 (1962-10-01), Bobo
patent: 3575528 (1971-04-01), Beam et al.
patent: 3736069 (1973-05-01), Beam et al.
patent: 3972181 (1976-08-01), Swayne
patent: 3975901 (1976-08-01), Hallinger et al.
patent: 4645424 (1987-02-01), Peters
Powell Jr. Everette A.
Societe Nationale d'Etude et de Construction de Moteurs D'Aviati
LandOfFree
Assembly for controlling the flow of cooling air in an engine tu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Assembly for controlling the flow of cooling air in an engine tu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Assembly for controlling the flow of cooling air in an engine tu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1923873