Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1982-06-21
1988-11-22
Hershkovitz, Abraham
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
415115, 415137, F01D 902
Patent
active
047862343
ABSTRACT:
A turbine airfoil, such as a turbine blade or nozzle vane, is disclosed for use in a high temperature environment. The airfoil comprises a center post and at least one side piece. The side piece is attached to the center post so that, at room temperature, a clearance between the center post and the side piece permits limited relative movement between the post and side piece. This clearance space, however, is dimensioned so that at the operating temperature of the turbine, thermal expansion of the center post and/or side piece substantially eliminates the clearance as well as the limited movement between the center post and side piece.
REFERENCES:
patent: 2599654 (1952-06-01), Musikant
patent: 3588267 (1971-06-01), Turnditch et al.
patent: 4288201 (1981-09-01), Wilson
patent: 4314442 (1982-02-01), Rice
patent: 4396349 (1983-08-01), Hueber
Hershkovitz Abraham
Pitko Joseph M.
Teledyne Industries Inc.
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