| 摘要 |
824,969. Generating combustion products under pressure. UNITED AIRCRAFT CORPORATION. Dec. 28, 1956 [Dec. 30, 1955], No. 39430/56. Class 51 (1). In combustion equipment of a gas-turbine jet-propulsion engine, first support means are mounted within a flame tube of the combustion equipment and second support means support the first support means pivotally with respect to the centre line of the engine so as to locate the flame tube axially. The combustion equipment shown comprises an outer casing 80 and an inner flame tube 22, the latter comprising a perforated outer wall 40 and a perforated inner tube 42. Fuel injectors 26 are disposed at the upstream end of the flame tube being mounted on a manifold 48 which is supported from the outer casing by means of a ring of bolts 72. The manifolds 48 of the group of flame tubes are supplied from a common ring manifold. The upstream end of the flame tube is supported radially and circumferentially but with axial freedom on the flanges 50 of the fuel injectors 26, while the downstream end thereof is supported on the ring member 46 by means of the ring 44 which is formed in two halves and clamped to the outlet end of the flame tube. A first support member comprising a flat plate 56 is secured diametrically within the upstream end of the inner tube 42 of the flame tube, the plate 56 being formed with a boss having an aperture 58. A second support member comprises a radial plate 62 and two endplates 66, 68, the latter being secured by bolts 70 to the inner periphery of the fuel manifold 48. The plate 62 is formed with a pair of flanges 67, 69 which upon assembly are disposed on either side of the flange 54 on the plate 56, the parts being pivotally secured together by means of a pin 74 passing through aligned holes in the flanges. The pin 74 engages a recess in the outer casing 80 to prevent inadvertent removal. Access to the flame tubes is obtained by removing bolts 100, 102 which allows the outer casing 80 to be moved axially in a downstream direction. The ring parts 44 and the pin 74 may then be removed and after the flame tube has been given a slight downstream movement so as to disengage it from the flanges 50 of the fuel injectors 26, the flame tube may be lifted out radially. |
