초록 ▼

A gas turbine engine includes a compressor, a combustor, and turbine enclosed in an engine case with the compressor having a plurality of alternating rows of rotating blades and stationary vanes. The gas turbine engine also includes a substantially circumferential groove formed in the engine case of

A gas turbine engine includes a compressor, a combustor, and turbine enclosed in an engine case with the compressor having a plurality of alternating rows of rotating blades and stationary vanes. The gas turbine engine also includes a substantially circumferential groove formed in the engine case of the compressor section. The groove is substantially adjacent to a row of rotating blades to extract a portion of tip leakage flow from that row of blades and to route the extracted tip leakage flow to the turbine section for cooling turbine components. In the preferred embodiment of the present invention, the groove communicates with a plenum which communicates with the turbine section of the gas turbine engine via channeling pipes formed within the engine case.

대표청구항 ▼

A gas turbine engine includes a compressor, a combustor, and turbine enclosed in an engine case with the compressor having a plurality of alternating rows of rotating blades and stationary vanes. The gas turbine engine also includes a substantially circumferential groove formed in the engine case of

A gas turbine engine includes a compressor, a combustor, and turbine enclosed in an engine case with the compressor having a plurality of alternating rows of rotating blades and stationary vanes. The gas turbine engine also includes a substantially circumferential groove formed in the engine case of the compressor section. The groove is substantially adjacent to a row of rotating blades to extract a portion of tip leakage flow from that row of blades and to route the extracted tip leakage flow to the turbine section for cooling turbine components. In the preferred embodiment of the present invention, the groove communicates with a plenum which communicates with the turbine section of the gas turbine engine via channeling pipes formed within the engine case. g the bristles to move to surround and capture an insect in contact with the bristles. 2. A device as claimed in claim 1, wherein the actuator comprises means for causing the bristles to converge. 3. A device as claimed in claim 1, wherein the actuator further comprises a spring mounted to bias the bristles to a converged state. 4. A device as claimed in claim 1, wherein the handle is connected to the head by an elongate rod. 5. A device as claimed in claim 1, wherein the bristles are turned at an angle of approximately 90°. 6. An insect capturing device comprising a user handle and an insect capturing head, the head including a plurality of bristles, and an actuator causing the bristles to move to surround and capture an insect, said plurality of bristles being arranged in an outer pattern of bristles and an inner pattern of bristles, with the outer pattern of bristles being longer in length than the inner pattern of bristles. 7. An insect capturing device comprising a user handle and an insect capturing head, the head including a plurality of bristles, and an actuator causing the bristles to move to surround and capture an insect, the actuator including a diaphragm supporting the bristles and the diaphragm being movable between a convex position at which the bristles diverge and a concave position at which the bristles converge. 8. An insect capturing device comprising a user handle and an insect capturing head, the head including a plurality of bristles arranged in two or more concentric rings, and an actuator causing the bristles to move to surround and capture an insect in contact with the bristles. 9. An insect capturing device comprising a user handle and an insect capturing head, the head including a plurality of bristles arranged in two or more concentric rings and bristles of an outer ring are longer then bristles of an inner ring, and an actuator causing the bristles to move to surround and capture an insect in contact with the bristles. 10. An insect capturing device comprising a user handle and an insect capturing head, the head including a plurality of tufts of bristles arranged in two or more concentric rings and the tufts of adjacent rings being mounted in mutually offset configuration, and an actuator causing the bristles to move to surround and capture an insect in contact with the bristles. 11. An insect capturing device comprising a user handle and an insect capturing head, the head including a plurality of bristles, and an actuator causing the bristles to move to surround and capture an insect in contact with the bristles, the actuator including means for causing the bristles to converge, said means including a diaphragm supporting the bristles and means for moving the diaphragm between a convex position at which the bristles diverge and a concave position at which the bristles converge, said means for moving the diaphragm including a rod connected at one end to the diaphragm and at the other end to a trigger mechanism at the handle. 12. An insect capturing device comprising a user handle and an insect capturing head, the head including a plurality of bristles, and an actuator causing the bristles to move to surround and capture an insect in contact with the bristles, the actuator including means for causing the bristles to converge, said means including a diaphragm supporting the bristles and means for moving the diaphragm between a convex position at which the bristles diverge and a concave position at which the bristles converge, said means for moving the diaphragm including a rod connected at one end to the diaphragm and at the other end to a trigger mechanism at the handle, and said trigger mechanism including a front fixed handle part and a rear trigger connected to the rod. 13. An insect capturing device comprising a user handle and an insect capturing head, the head including a plurality of bristles, and an actuator causing the bristles to