Turbine blade tip treatment for industrial gas turbines
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01D-005/28
F01D-011/08
F01D-025/24
F01D-011/12
출원번호
US-0774573
(2014-03-12)
등록번호
US-9926794
(2018-03-27)
국제출원번호
PCT/US2014/024983
(2014-03-12)
국제공개번호
WO2014/151101
(2014-09-25)
발명자
/ 주소
Strock, Christopher W.
출원인 / 주소
United Technologies Corporation
대리인 / 주소
Kinney & Lange, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A method of preventing transfer of metal of a gas turbine rotor blade having a metal tip to a blade outer air seal coating on a gas turbine case includes forming a coating on the metal tip. The coating comprises a bond coat layer on the metal tip and a ceramic filled metallic layer having a ceramic
A method of preventing transfer of metal of a gas turbine rotor blade having a metal tip to a blade outer air seal coating on a gas turbine case includes forming a coating on the metal tip. The coating comprises a bond coat layer on the metal tip and a ceramic filled metallic layer having a ceramic component in a matrix of a metal MCr, MCrAl, MCrAlY or a refractory modified MCrAlY where M is nickel, cobalt, iron or mixtures thereof.
대표청구항▼
1. A method of preventing transfer of metal of a gas turbine rotor blade having a metal tip to a blade outer air seal coating, comprising: a blade outer air seal coating on a gas turbine case; anda coating on the metal tip, the coating comprising a ceramic filled metallic layer having a ceramic comp
1. A method of preventing transfer of metal of a gas turbine rotor blade having a metal tip to a blade outer air seal coating, comprising: a blade outer air seal coating on a gas turbine case; anda coating on the metal tip, the coating comprising a ceramic filled metallic layer having a ceramic component in a matrix of a metal;wherein the ceramic component is selected from the group consisting of silica, quartz, alumina, zirconia and mixtures thereof and the metal is selected from the group consisting of MCr, MCrAl, MCrAlY or a refractory modified MCrAlY where M is nickel, cobalt, iron or mixtures thereof. 2. The method of claim 1, wherein the ceramic component has a hardness of seven or more on the Mohs Scale. 3. The method of claim 1, which further includes a bond coat on the metal tip between the metal tip and the ceramic filled metallic layer. 4. A rotor and blade seal coating preventing transfer of metal of a gas turbine rotor blade having a metal tip to a blade outer air seal coating, comprising: a blade outer air seal coating on a gas turbine case; anda coating on the metal tip, the coating comprising a ceramic filled metallic layer having a ceramic component in a matrix of a metal;wherein the ceramic component is selected from the group consisting of silica, quartz, alumina, zirconia and mixtures thereof and the metal is selected from the group consisting of MCr, MCrAl, MCrAlY or a refractory modified MCrAlY where M is nickel, cobalt, iron or mixtures thereof. 5. The rotor and blade seal coating of claim 4, wherein the ceramic component has a hardness of seven or more on the Mohs Scale. 6. The rotor and blade seal coating of claim 4 which further include a bond coat on the metal tip between the metal tip and the ceramic filled metallic layer. 7. In a gas turbine engine having a plurality of rotor blades having a metal tip and a blade outer air seal coating, comprising: a blade outer air seal coating on a gas turbine case; anda coating on the metal tip, the coating comprising a ceramic filled metallic layer;wherein the ceramic component is selected from the group consisting of silica, quartz, alumina, zirconia and mixtures thereof and the metal is selected from the group consisting of MCr, MCrAl, MCrAlY or a refractory modified MCrAlY where M is nickel, cobalt, iron or mixtures thereof. 8. The gas turbine engine of claim 7, wherein the ceramic component has a hardness of seven or more on the Mohs Scale. 9. The gas turbine engine of claim 7, which further includes a bond coat on the metal tip, the bond coat being between the metal tip and the ceramic filled metallic layer.
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이 특허에 인용된 특허 (5)
Benoit Roland (Lake Park FL) Beverly Eugene M. (Palm Beach Gardens FL) Love Charles M. (Jupiter FL) Mack Gregory J. (Palm Beach Gardens FL), Abrasive blade tip.
Kushner Burton A. (Old Behtpage NY) Rotolico Anthony J. (Hauppauge NY) Nerz John E. (Seldon NY) Saia Lawerence A. (Levittown NY), Turbine rotor blade tip coated with alumina-zirconia ceramic.
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