초록 ▼

A repair kit for replacing an unserviceable vane assembly in a turbine engine includes a serviceable vane subassembly 120 having a serviceable airfoil 124 with a base 134 attached to the root end thereof and an opposing base 156 which is unattached to but slidably engagable with the serviceable airf

A repair kit for replacing an unserviceable vane assembly in a turbine engine includes a serviceable vane subassembly 120 having a serviceable airfoil 124 with a base 134 attached to the root end thereof and an opposing base 156 which is unattached to but slidably engagable with the serviceable airfoil. The opposing base is slipped over the tip end of the airfoil and slid toward the opposing base. The vane subassembly and opposing base are pivoted into position between inner and outer engine cases in place of an unserviceable vane assembly so that receptor sockets 148, 150 in the attached base engage support pins 72 extending from the inner case. An adhesive 182 is applied to the tip end of the serviceable airfoil and the opposing base is translated into its installed position near the tip end of the airfoil. Upon curing of the adhesive, the opposing base becomes attached to the airfoil. The base is secured to the outer case by studs 196 and nuts 198.

대표청구항 ▼

A repair kit for replacing an unserviceable stator vane assembly in a gas turbine engine having an array of vane assemblies extending across an annular flowpath defined by coaxial inner and outer cases, the unserviceable vane assembly having an airfoil with inner and outer ends, an inner base attach

A repair kit for replacing an unserviceable stator vane assembly in a gas turbine engine having an array of vane assemblies extending across an annular flowpath defined by coaxial inner and outer cases, the unserviceable vane assembly having an airfoil with inner and outer ends, an inner base attached to the inner end of the airfoil and secured to the inner case, an outer base attached to the outer end of the airfoil and secured to the outer case, the repair kit characterized by: a serviceable vane subassembly comprising a serviceable airfoil having a leading edge, a trailing edge, a tip end, a root end and a base attached to the root end; and an opposing base which is slidingly engageable with the serviceable airfoil but unattached thereto so that the opposing base can be slipped over the tip end of the serviceable airfoil and slid toward the attached base until the serviceable airfoil projects through and is embraced by the opposing base. A method of replacing an unserviceable stator vane assembly in a gas turbine engine having an array of vane assemblies extending across an annular flowpath defined by coaxial inner and outer cases, the method characterized by: providing a serviceable vane subassembly comprising a serviceable airfoil having a leading edge, a trailing edge, a tip end, a root end and a base attached to the root end; providing an opposing base; sliding the opposing base over the tip end of the serviceable airfoil and spanwisely toward the attached base so that the serviceable airfoil projects through and is embraced by the opposing base; positioning the serviceable vane subassembly and opposing base in place of the unserviceable vane assembly so that the attached base is proximate to one of the cases; translating the opposing base to its installed position proximate to the other case and proximate to the tip end of the airfoil; and attaching the opposing base to the serviceable airfoil and securing the opposing base to the other case.