Rotary kinetic fluid motors or pumps – Method of operation
Patent
1995-11-21
1997-08-05
Verdier, Christopher
Rotary kinetic fluid motors or pumps
Method of operation
415110, 415116, 4151682, 4151711, 4151731, 415176, 4152112, F04D 2916, F04D 2944, F04D 3100
Patent
active
056535775
ABSTRACT:
An arrangement provided for turbine wheels (4) with cover disks (6, 7) which have a contactless sealing region (8, 9) to the housing. An apron-shaped free jet is created within a mixer zone (15) by increasing the transmission cross-section to the housing side in connection to the sealing region (8, 9) in a stepwise manner in the mixer zone (15) adjoining in the same direction and by connection channels (16, 17, 18) from the outer air to the beginning of the mixer zone (15), the air (13) is sucked in and mixed in in order, after steering, to supply the water-air mixture at the rotor wheel outlet end (21) to the main flow (5). Air (13) is thus fed in behind the sealing region (8, 9) which, on the one hand, calms the flow in the main flow (5) behind the rotor wheel under partial load without auxiliary aggregates and, on the other hand, reduces the friction losses between the rotor wheel (4) and housing (1).
REFERENCES:
Grein, H. (1981) "Schwingungserscheinungen in Francisturbinen--Ursachen und Gegenmassnahmen", Escher Wyss Mitteilungren, 1:37-42.
Suizer Hydro GmbH
Verdier Christopher
LandOfFree
Turbine, in particular Francis turbine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Turbine, in particular Francis turbine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbine, in particular Francis turbine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1070457