An apparatus and method for at least one of stiffening a rotor blade of a gas turbine engine and raising a natural vibration frequency of the blade. The blade has a recess extending radially and inwardly into the blade. A reinforcing element is provided in the recess at a selected position to thereby allow a large blade chord at the tip end of the blade.
申请公布号
CA2542285(C)
申请公布日期
2011.06.14
申请号
CA20042542285
申请日期
2004.07.19
申请人
PRATT & WHITNEY CANADA CORP.
发明人
FETT, STEVEN JOHN;SMITH, SCOTT WALKER;LE, BICH NHU