GB191328271A - Improvements in Elastic Fluid Turbines. - Google Patents

Abstract

28,271. Rearick, C. B. Dec. 9, 1912, [Convention date]. Reflexed-flow type; casings ; rotors.-A reflexedflow turbine with tangential jets comprises a rotor with a series of buckets 6, 9, 14, 18, 23, arranged side by side and co-operating with a stator comprising nozzles 4 and guide - chambers 10, 12, 17, 20. the motive fluid passing in succession from stage to stage. The capacity and inclination of guide-chambers and rotor buckets increase from stage to stage. The parts carrying the guide-chambers are connected to the casing by sliding joints 42, Fig. 2. The rim of the rotor is preferably cast in one piece with the buckets, e.g. by the process described in Specification 20,557/11, [Class 83 (i), Casting &c. metals], and the rim may be cast around spokes 26 of bronze or other suitable material. Subsequently, a cast-iron hub 48 is cast on to the inner ends of the spokes 26. The hub may have cast integrally therewith spoke supports 24 which, while allowing the spokes to expand radially, afford lateral support thereto. An additional sleeve 25 of steel may be placed on each spoke before casting on the hub and supports. Steam is admitted by way of a conduit 2 and steam-chest 3. The ends of the rotor are closed by side plates 40, Fig. 1.