Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent
1979-11-28
1982-06-01
Corbin, David H.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
137386, E02B 720
Patent
active
043325076
ABSTRACT:
A water level control system for a reservoir includes steps of detecting water level, outflow rate and inflow rate of the reservoir detecting modified water level corresponding to the reservoir's content depending on the actual water level, the outflow rate and the inflow rate, and controlling the outflow rate of the reservoir in response to a deviation value between a set reference and the modified water level, thereby reducing the influence of undesirable water level fluctuation.
REFERENCES:
patent: 2667748 (1954-02-01), Heath
patent: 3466872 (1969-09-01), Shimizu
patent: 3532956 (1970-10-01), Simon
patent: 4036023 (1977-07-01), Matsumoto et al.
patent: 4180083 (1979-12-01), Miyaoka et al.
Funabashi Motohisa
Hirano Takazo
Kata Mamoru
Onari Mikihiko
Wakamori Fumio
Corbin David H.
Hitachi , Ltd.
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