Method and apparatus for controlling multistage hydraulic machin

Details Method and apparatus for controlling multistage hydraulic machin Method and apparatus for controlling multistage hydraulic machin

1984-03-28

1986-02-04

Look, Edward K.

Rotary kinetic fluid motors or pumps

Method of operation

415 14, 415 26, 415500, F01D 1704

Patent

active

045682402

ABSTRACT:
A method and apparatus for controlling a multistage hydraulic machine in which respective pressure stages are connected in series through runners and return passages and the highest and lowest pressure stages are provided with movable guide vanes, are organized such that the guide vanes of either one of the two pressure stages are controlled in accordance with the load of the hydraulic machine, while the guide vanes of the other one of the two pressure stages are controlled in accordance with a relation defined by the load of the lowest pressure stage and the load of the hydraulic machine.

REFERENCES:
patent: 4472103 (1984-09-01), Yamagata et al.
patent: 4487549 (1984-12-01), Takakusagi et al.
patent: 4502831 (1985-03-01), Sato et al.

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