Abstract: The invention relates to compressor manufacture. The impeller comprises a base disc (1) wherein, according to the invention, the angle (.beta.) between its internal surface (5) and the plane (p) perpendicular to the impeller rotation axis (0--0) is 0.5-1.degree. larger than the angle (.alpha.) between its external surface (4) and the same plane (p).
Type:
Grant
Filed:
July 13, 1988
Date of Patent:
September 5, 1989
Assignee:
Proizvodstvennoe Obiedinenie Nevsky Zavod Imeni V.I. Lenina
Inventors:
Vladimir V. Arkhipov, Gennady F. Velikanov, Gilya A. Raer, Kir B. Sarantsev
Abstract: An impeller, comprising a main disc (1), blades (2) and a covering disc (3) which consists of interconnected web (4) and ring (5). The joint of the web (4) and ring (5) is detachable to form mated surface (6 and 7) in the place of the joint and has on the surface (7) of the ring (5) an annular shoulder (8) and on the surface (6) of the web (4) an annular groove (9) accomodating the shoulder (8). The internal diameter Do of the web (4) is less than the diameter (D) of the ring (5) along their mated surfaces (6 and 7) by 1 to 1.5.times.10.sup.-3 Do.
Type:
Grant
Filed:
September 1, 1987
Date of Patent:
January 3, 1989
Assignee:
Proizvodstvennoe Obiedinenie "Nevsky Zavod" Imeni V.I. Lenina
Inventors:
Vladimir V. Arkhipov, Gennady F. Velikanov, Yakov S. Levin, Vadim S. Magdychansky, Gennady I. Petrov, Gilya A. Raer, Kir B. Sarantsev