Safety control system for hydraulic jet turbines

Details Safety control system for hydraulic jet turbines Safety control system for hydraulic jet turbines

1973-11-07

1978-04-18

Blix, Trygve M.

Internal-combustion engines

High tension ignition system

Using capacitive storage and discharge for spark energy

115 11, 123 98, 123179K, B63H 1102

Patent

active

040845362

ABSTRACT:
A safety control system for the prevention of undesired reactive thrust which may be produced from hydraulic jet turbines includes manually operated controls connected to the shutoff valve of a hydraulic jet venturi section and a switch operatively connected to the shutoff valve. This switch is closed when the shutoff valve closes the main propulsion opening. It is connected in series with the starter of the engine driving the jet turbine so that the engine can only be started when the main propulsion opening is closed. Further, controls are provided between the throttle of the engine and the shutoff valve controls to reduce the rotational driveshaft speed when the shutoff valve is closed.

REFERENCES:
patent: 2638862 (1953-05-01), Long
patent: 2705485 (1955-04-01), Morse
patent: 3185124 (1965-05-01), Spence
patent: 3284743 (1966-11-01), Spewock et al.

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