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公开(公告)号：EP0067628A2
公开(公告)日：1982-12-22
申请号：EP82302864.2
申请日：1982-06-03
申请人： CHANDLER EVANS INC.
发明人： Meyer, Gene A. , Peck, Robert E.
CPC分类号： F02C9/28
摘要： A fuel metering system for a gas turbine engine with a low pressure drop fuel vaporizing system includes an engine driven centrifugal pump (10) supplied with fuel at a given absolute pressure (Pi) from a tank. The pump discharges fuel to a rapidly pulsed, solenoid operated ball valve (20) which functions as a metering valve in controlling flow to the engine. The solenoid of the metering valve receives periodic voltage pulses of appropriate width from an electronic control (24) which senses selected engine parameters and computes the required fuel flow and the pressure differential (Pr-Pp) across the metering valve. Since the pressure differential across the metering valve (20) increases with engine speed, favorable flow turndown ratios may be achieved without operating the metering valve at high or low values of duty cycle.
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公开(公告)号：EP0067628B1
公开(公告)日：1987-09-16
申请号：EP82302864.2
申请日：1982-06-03
申请人： CHANDLER EVANS INC.
发明人： Meyer, Gene A. , Peck, Robert E.
CPC分类号： F02C9/28
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公开(公告)号：EP0067628A3
公开(公告)日：1984-02-15
申请号：EP82302864
申请日：1982-06-03
申请人： CHANDLER EVANS INC.
发明人： Meyer, Gene A. , Peck, Robert E.
CPC分类号： F02C9/28
摘要： A fuel metering system for a gas turbine engine with a low pressure drop fuel vaporizing system includes an engine driven centrifugal pump (10) supplied with fuel at a given absolute pressure (Pi) from a tank. The pump discharges fuel to a rapidly pulsed, solenoid operated ball valve (20) which functions as a metering valve in controlling flow to the engine. The solenoid of the metering valve receives periodic voltage pulses of appropriate width from an electronic control (24) which senses selected engine parameters and computes the required fuel flow and the pressure differential (Pr-Pp) across the metering valve. Since the pressure differential across the metering valve (20) increases with engine speed, favorable flow turndown ratios may be achieved without operating the metering valve at high or low values of duty cycle.
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公开(公告)号：EP0047174A1
公开(公告)日：1982-03-10
申请号：EP81303996.3
申请日：1981-09-01
申请人： CHANDLER EVANS INC.
摘要： A fuel control for a gas turbine engine has a positive displacement pump (10) which directs fuel to a constant flow regulator (14) which generates a constant flow of fuel. A flow diverter (16) includes a dividing device which divides the constant flow of fuel between a discharge conduit (18) connected to the burner nozzles of the engine and a bypass conduit (20) connected to the inlet side of the pump. A computer (22) which is adapted to sense various engine parameters and calculate fuel flow controls the flow dividing device in order to apportion the flow so that the calculated fuel flow is delivered to the engine.
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