Turbine shroud segment
AssigneeIshikawajima-Harima Heavy Industries Co., Ltd.
InventorAgamu Tanaka
Life of this patent
Estimating the term…
Abstract
A shroud segment for being incorporated in a gas turbine engine having a turbine case and a rear turbine case connected with a rear end of the turbine case so as to suppress influence of hot combustion gas on the turbine case and the rear turbine case, is provided with a back plate formed in an arc shape and supported by the turbine case, a touching member integrally formed on an inner surface of the back plate for touching with a rotating turbine blade; and a jet shield extended from a rear end of the back plate and slanted radially inward so as to shield the rear turbine case from a jet of the hot combustion gas.
Claims11
A shroud segment for being incorporated in a gas turbine engine having a turbine case and a rear turbine case connected with a rear end of the turbine case so as to suppress influence of hot combustion gas on the turbine case and the rear turbine case, comprising:
- a back plate formed in an arc shape and supported by the turbine case;
- a touching member integrally formed on an inner surface of the back plate for touching with a rotating turbine blade, the touching member having an inner periphery;
- and
- a jet shield extended from a rear end of the back plate and slanted radially inward beyond the inner periphery of the touching member so as to shield the rear turbine case from a jet of the hot combustion gas.
A shroud segment for being incorporated in a gas turbine engine having a turbine case and a rear turbine case connected with a rear end of the turbine case so as to suppress influence of hot combustion gas on the turbine case and the rear turbine case, comprising:
- a back plate formed in an arc shape and supported by the turbine case;
- a touching member integrally formed on an inner surface of the back plate for touching with a rotating turbine blade;
- and
- a jet shield extended from a rear end of the back plate and slanted radially inward so as to shield the rear turbine case from a jet of the hot combustion gas, wherein the touching member integrally comprised a rear touching member disposed in a rear part of the touching member and projected radially inward from the touching member, and wherein the touching member and the jet shield are configured so as to satisfy an inequality of 0.25m≦k≦0.42m, where m is a radial projection length of the jet shield from the rear touching member and k is a radial projection length of the rear touching member from the touching member.
Dependencies are inferred from the claim text.