Mechanical flywheel for bowed rotor mitigation
US-2018283274-A1 · Oct 4, 2018 · US
US11124305B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11124305-B2 |
| Application number | US-201816159012-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 12, 2018 |
| Priority date | Oct 16, 2017 |
| Publication date | Sep 21, 2021 |
| Grant date | Sep 21, 2021 |
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An aircraft with a jet engine that has a radially outer engine cowling and an auxiliary gear appliance that has multiple auxiliary devices and that can be driven by a shaft that is in operative connection with an engine shaft that rotates about a central axis. The auxiliary gear appliance is arranged in the radial direction of the jet engine at least partially outside the outer engine cowling of the jet engine.
Opening claim text (preview).
The invention claimed is: 1. An aircraft comprising: a jet engine having a radially outer engine cowling and an auxiliary gear appliance that comprises multiple auxiliary devices that are in operative connection with a drive shaft that is in operative connection with an engine shaft that rotates about a central axis, wherein the auxiliary gear appliance is arranged in a radial direction of the jet engine at least partially outside the outer engine cowling, a space frame that is directly connected to at least one chosen from an aircraft fuselage and an aircraft wing, wherein the auxiliary gear appliance is positioned in an interior of the space frame; wherein the jet engine comprises: a linking device for linking the jet engine at an element of the aircraft in a first mounting position and at least one second mounting position, and at least one operating equipment appliance which has a first fluid area and comprises a second fluid area, wherein, in the first mounting position, the first fluid area is assigned to a first functionality and the second fluid area is assigned to a second functionality, and wherein, in the second mounting position, the first fluid area is assigned to the second functionality and the second fluid area is assigned to the first functionality. 2. The aircraft according to claim 1 , wherein the space frame is arranged at least partially inside an engine pylon that supports the jet engine. 3. The aircraft according to claim 1 , wherein the space frame includes linking elements for the auxiliary devices and at least one chosen from conduits, tubes and wiring harnesses positioned in the space frame. 4. The aircraft according to claim 1 , wherein the auxiliary gear appliance is arranged at least partially inside at least one chosen from an aircraft fuselage, an engine pylon and an aircraft wing. 5. The aircraft according to claim 1 , wherein the drive shaft extends through a support strut of the jet engine, with the jet engine being linked to at least one chosen from an engine pylon, an aircraft fuselage and an aircraft wing in an area of the support strut. 6. The aircraft according to claim 1 , wherein the first and second fluid areas are assigned to re-circulation and venting as functionalities. 7. The aircraft according to claim 1 , wherein the first and second fluid areas include conduit areas that are arranged at a distance to each other in a circumferential direction of the jet engine, wherein the conduit areas are arranged so as to be symmetrical to the linking device in the circumferential direction. 8. The aircraft according to claim 7 , wherein the conduit areas are respectively arranged inside a support strut of the jet engine, wherein the support strut extends in the radial direction through a bypass flow channel of the jet engine. 9. The aircraft according to claim 1 , wherein the linking device includes at least two engine attachment points, wherein the linking device is connected to a carrier structure of the jet engine in an area of the at least two engine attachment points. 10. The aircraft according to claim 9 , wherein the linking device comprises an interface device to the aircraft centrally to the at least two engine attachment points in the circumferential direction. 11. The aircraft according to claim 10 , and further comprising at least two lifting points configured for mounting the jet engine, the at least two lifting points distributed in a circumferential direction of the jet engine, wherein the at least two lifting points are arranged to be symmetrical to the interface device in the circumferential direction.
within, or attached to, fuselages · CPC title
comprising box like supporting frames, e.g. pylons or arrangements for embracing the power plant · CPC title
of jet type · CPC title
Mounting or supporting of plant; Accommodating heat expansion or creep · CPC title
within, or attached to, wings · CPC title
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