Methods of controlling operation of multistage hydraulic machine

Details Methods of controlling operation of multistage hydraulic machine Methods of controlling operation of multistage hydraulic machine

1984-03-12

1987-02-03

Look, Edward K.

Rotary kinetic fluid motors or pumps

Method of operation

415 29, 415500, F01D 1700

Patent

active

046406646

ABSTRACT:
A multistage hydraulic machine in which respective pressure stages are connected in series through return passages and the highest and lowest pressure stages of the hydraulic machine are provided with movable guide vanes the degrees of openings of which are variable is controlled for load regulation or water flow rate regulation under a normal operation condition of the hydraulic machine by controlling degrees of openings of the movable guide vanes of the highest and lowest pressure stages in accordance with several control modes.

REFERENCES:
patent: 4472103 (1984-09-01), Yamagata et al.
patent: 4487549 (1984-12-01), Takakusagi et al.

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