公开(公告)号：US5031398A

公开(公告)日：1991-07-16

申请号：US443159

申请日：1989-11-30

申请人： Steven W. Lampe ,  Ashley W. Timmis

发明人： Steven W. Lampe ,  Ashley W. Timmis

IPC分类号： F02C7/277 ,  F02C9/28

CPC分类号： F02C9/28 ,  F02C7/277 ,  F05D2200/11

摘要： A fuel control system (10) for a power unit used for generating power used for operating an airframe in accordance with the invention includes an air supply (18) for supplying pressurized air blown down from a storage vessel (14) to a combustor (16) which generates a gas stream by burning fuel supplied by a fuel supply (32) driving a turbine (50) to produce the power; a pressure sensor (26) coupled to the air supply for producing an analog signal proportional to pressure upstream in the air supply from the combustor; a digital to analog converter (54) having an offset input coupled to a signal proportional to the sensed pressure, a digital input for receiving a digital input signal, and an analog output which varies in proportion to the sum of the signal applied to the offset input and the digital input signal; a fuel control valve (38) contained with the fuel supply which is controlled as a function of the analog output signal of the digital to analog converter; an analog to digital converter (56) having at least one input and at least one output with the analog to digital converter outputting a digital signal proportional to each input signal applied to the at least one input of the analog to digital converter; and a system controller (24), responsive to the at least one output of the analog to digital converter, controlling the fuel with a periodically generated digital input signal applied to the digital to analog converter.

摘要翻译： 根据本发明的用于产生用于操作机身的动力单元的燃料控制系统（10）包括用于将从储存容器（14）吹出的加压空气供应到燃烧器（16）的空气供应源（18） ），其通过燃烧由驱动涡轮（50）的燃料供应（32）供应的燃料来产生气流，以产生电力; 耦合到空气供应的压力传感器（26），用于产生与来自燃烧器的空气供应中的上游压力成比例的模拟信号; 数模转换器（54），其具有耦合到与感测到的压力成比例的信号的偏移输入，用于接收数字输入信号的数字输入和与施加到偏移的信号的和成比例地变化的模拟输出 输入和数字输入信号; 燃料控制阀（38），其容纳有作为所述数模转换器的模拟输出信号的函数而被控制的燃料供应; 模数转换器（56）具有至少一个输入和至少一个输出，模数转换器输出与施加到模数转换器的至少一个输入端的每个输入信号成比例的数字信号; 以及系统控制器（24），其响应于所述模数转换器的所述至少一个输出，利用施加到所述数模转换器的周期性产生的数字输入信号来控制所述燃料。