| 摘要 |
865,404. Centrifugal pumps or compressors. SULZER FRERES S.A. Dec. 23, 1958 [Jan. 20, 1958], No. 41560/58. Class 110 (1). In a radial flow pump or compressor in which at least one set of guide blades 10 are arranged between the parallel walls 4, 5 of a radial diffuser 3, and in which the distance between these walls is adjustable, and in which each wall has in the region of the or each set of guideblades an annular groove covered by a ring flush with the wall, the ring 8 covering the groove 6 in the fixed wall 4 as well as the ring 9 covering the groove 7 in the adjustable wall 5, has slots 12 corresponding in profile and number with the blades 10. The blades 10 are retained in the fixed wall by their roots 14. This construction facilitates manufacture since the blades 10 may be made by series reproduction by drop-forging, precision casting or sintering, and the rings 8, 9 may be identical. |
