公开(公告)号：US4104876A

公开(公告)日：1978-08-08

申请号：US746649

申请日：1976-12-02

Applicant: Hals N. Larsen ,  Peter W. Kamber

Inventor： Hals N. Larsen ,  Peter W. Kamber

IPC: F02C9/28 ,  F02C9/56 ,  F02K3/06 ,  F02C9/04

CPC classification number: F02C9/56 ,  F02C9/28 ,  F05D2270/023 ,  Y02T50/671

Abstract: A fan spool stabilization loop which improves the stability of the low speed or fan spool in a two spool turbofan engine. In a preferred embodiment, the actual rate of rotation of the high speed spool is compared with the desired rate of rotation determined by integrating the difference between the desired rate of rotation of the fan spool and the actual rate of rotation. The difference therebetween controls the flow of fuel to the turbofan engine. In an alternate preferred embodiment of the invention, the rate of change of rotation of the high speed spool is added to the actual rate of rotation of the fan spool and the result is compared with the desired rate of rotation of the fan spool. The difference therebetween is utilized to control the flow of fuel to the turbofan engine.

Abstract translation: 风扇阀芯稳定回路，提高了两个卷轴涡轮风扇发动机中低速或风扇阀芯的稳定性。 在优选实施例中，将高速线轴的实际转速与通过将风扇阀芯的期望转速与实际转速之差的差积分确定的所需转速进行比较。 其间的差异控制到涡轮风扇发动机的燃料流。 在本发明的替代优选实施例中，将高速滑阀的转动速率加到风扇滑阀的实际旋转速率上，并将其结果与风扇阀芯的期望转速进行比较。 它们之间的差异用于控制到涡轮风扇发动机的燃料流。