Core for casting turbine blade, method of manufacturing the core, and turbine blade manufactured using the core
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United States of America Patent
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Oct 13, 2020
Grant Date -
Nov 23, 2017
app pub date -
May 19, 2017
filing date -
May 20, 2016
priority date (Note) -
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Abstract
A core for casting a turbine blade to form at least one cooling passage in a wing portion of the turbine blade, wherein the wing portion includes a leading edge region and a trailing edge region, and has a streamlined cross-section, the core including: at least one of a first core unit having a shape corresponding to a cooling passage located at the leading edge region and a second core unit spaced apart from the first core unit and having a shape corresponding to a cooling passage located at the trailing edge region, wherein each of the first core unit and the second core unit includes: a plurality of extending portions extending in a longitudinal direction and located substantially parallel to one another; at least one curved portion connecting adjacent ends of the plurality of extending portions; and at least one through-portion located between the plurality of extending portions and having an empty space extending in a width direction of the wing portion.
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