FIELD: engines and pumps.
SUBSTANCE: proposed system comprises the main and standby control channels. Standby control channel incorporates selector of operating conditions with slit and interthrottle chamber. Chamber inlet throttle is composed by slit flow section, controlled jet and rpm selector. Jet and valve are mounted in parallel in the line communicating hydropneumatic transformer with selector and chamber. Transducer is connected with engine free turbine. At increase in free turbine rpm above preset magnitude, transducer force displaces the valve for line closure. Chamber inlet throttle flow section decreases to decrease chamber pressure and proportioning needle flow section. Fuel feed to engine decreases to limit free turbine rpm.
EFFECT: higher reliability at standby mode.
1 dwg
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