초록 ▼

A reverse flow combustor has an inlet end. A flowpath extends downstream from the inlet end through a turn. The turn directs the flowpath radially inward and reversing an axial flow direction. A large exit duct (LED) is along the turn. A small exit duct (SED) is along the turn and joined by a joint

A reverse flow combustor has an inlet end. A flowpath extends downstream from the inlet end through a turn. The turn directs the flowpath radially inward and reversing an axial flow direction. A large exit duct (LED) is along the turn. A small exit duct (SED) is along the turn and joined by a joint to a mounting structure to resist separation in a first axial direction. The joint comprises: a first surface on the SED facing partially radially inward; and a mounting feature engaging the first surface.

대표청구항 ▼

1. A reverse flow combustor comprising: an inlet end;a flowpath extending downstream from the inlet end through a turn, the turn directing the flowpath radially inward and reversing an axial flow directiona large exit duct (LED) along the turn;a small exit duct (SED) along the turn and joined by a j

1. A reverse flow combustor comprising: an inlet end;a flowpath extending downstream from the inlet end through a turn, the turn directing the flowpath radially inward and reversing an axial flow directiona large exit duct (LED) along the turn;a small exit duct (SED) along the turn and joined by a joint to a mounting structure to resist separation in a first axial direction, the joint comprising: a first surface on the SED facing partially radially inward; anda mounting feature engaging the first surface at a location on the first surface facing partially radially inward to resest said separation further comprising a metallic clamp ring for engaging said first surface of the Sed, wherein the mounting frature is formed by a plurality of tabs on the metallic clamp ring extending radially outward, and the metallic clamp ring being pulled in the direction opposite from the first axial direction by a plurality of metal bolts. 2. The reverse flow combustor of claim 1 further comprising: an inlet dome forming the inlet end and having an outboard rim and an inboard rim;an outer air inlet ring between the dome outboard rim and an upstream rim of the LED; andan inner air inlet ring between the dome inboard rim and an upstream rim of the SED. 3. The reverse flow combustor of claim 2 wherein: the upstream rim of the SED comprises plurality of recesses; andthe inner air inlet ring comprises a plurality of projections received in respective said recesses to rotationally register the SED. 4. The reverse flow combustor of claim 1 wherein: the SED comprises an upstream region directed radially inwardly toward the upstream rim of the SED. 5. The reverse flow combustor of claim 1 wherein: the SED comprises a ceramic matrix composite (CMC). 6. The reverse flow combustor of claim 1 wherein: the first surface is off-axial. 7. The reverse flow combustor of claim 4 wherein: the first surface is off-axial by an angle of 20-60°. 8. The reverse flow combustor of claim 4 wherein: the first surface is off-axial by an angle of 30-50°. 9. The reverse flow combustor of claim 1 further comprising: a ring, a surface of the ring being positioned to engage a second surface of the SED opposite the first surface to resist movement in a direction opposite the first axial direction. 10. The reverse flow combustor of claim 1 wherein: the first surface is a first surface portion of a leading/upstream portion of the SED directed radially inward toward an upstream rim of the SED. 11. The reverse flow combustor of claim 10 wherein: the first surface portion and an opposite second surface portion are off-axial by an angle of 20-60°. 12. The reverse flow combustor of claim 2 wherein: the inner air inlet ring has an angled downstream surface engaging a second surface of the SED opposite the first surface.