Rotary kinetic fluid motors or pumps – Method of operation
Patent
1983-09-28
1985-09-03
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Method of operation
415 26, 415500, F01D 1700
Patent
active
045389578
ABSTRACT:
A multi-stage hydraulic machine includes a rotatable shaft, a plurality of runners fixed to the shaft and arranged from a highest-pressure stage to a lowest-pressure stage, runner chambers which respectively house the runners, a return channel for connecting adjacent ones of the runner chambers with each other, movable wicket gates provided at least in the runner chamber of the highest-pressure stage and capable of moving between a position in which the movable wicket gates block the channel and a position in which said movable wicket gates open the channel, and a draft tube connected to the runner chamber of the lowest-pressure stage. For controlling the machine, there are included means for feeding compressed air into the runner chamber of the highest-pressure stage, a plurality of communicating pipes, including valves connected with the runner chamber of each of the stages, a water feeding pipe having a valve, communicated between the return channel adjacent to the runner chamber of the lowest-pressure stage and the draft tube, a plurality of pressure detecting means arranged at the runner chamber of each of the stages, respectively, and means for controlling the valves of the communicating pipes and water feeding pipe in response to the output of the pressure detecting means.
REFERENCES:
patent: 4280788 (1981-07-01), Tsunoda et al.
patent: 4412779 (1983-11-01), Tsunoda et al.
patent: 4431370 (1984-02-01), Ichikawa et al.
patent: 4468167 (1984-08-01), Ogiwara et al.
Sato Shinsaku
Yamagata Ichiro
Garrett Robert E.
Pitko Joseph M.
Tokyo Shibaura Denki Kabushiki Kaisha
LandOfFree
Multi-stage hydraulic machine and control method for multi-stage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-stage hydraulic machine and control method for multi-stage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-stage hydraulic machine and control method for multi-stage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-611312