Helicopter Engine Fuel Control System Mechanical Backup Operating Characteristic
For a classical helicopter engine fuel control system adopting automatic control and me-chanical backup operation,investigation was performed for the fuel responding characteristic of me-chanical backup operation in different control modes.According to the graphic principle of fuel con-trol system on the handbook of the engine,the mechanical backup operating characteristic function of fuel flow response was deduced,and the operating characteristic was contrasted with test data.The investigation on mechanical backup operating characteristic showed that,in manual control mode,the fuel flow response of mechanical backup operation was related to the control position locked when auto control mode was invalid.If mechanical backup operation was executed while auto control was valid,it was an operation in mix control mode which had a different operating character-istic with manual control mode.
helicopterenginefuel control systemmechanical backup operation
万方数据
维普
