公开(公告)号：US3689175A

公开(公告)日：1972-09-05

申请号：US3689175D

申请日：1970-08-11

申请人： PIQUA AIRCRAFT CO INC

发明人： HARTZELL JAMES R ,  REAS ARLEY J

IPC分类号： B64C11/50 ,  F02D25/02 ,  G01P3/40 ,  G01P3/56 ,  H02P5/52

CPC分类号： G01P3/56 ,  B64C11/50 ,  F02D25/02 ,  G01P3/40 ,  H02P5/56

摘要： The specification discloses an arrangement for synchronizing the speeds of and controlling the phase of engines and, in particular, the engines of twin engine airplanes. In the arrangement, one engine is a master engine and the other is a slave engine, and the speeds and phase of the engines are compared and signals are provided in conformity with the results of the comparison to speed up or slow down the slave engine to bring the speed and phase thereof into conformity with that of the master engine if it differs therefrom. In a preferred embodiment of the invention, one of the engines drives a disc having an opaque sector therein and on one side of the disc are photosensitive elements and on the other side are lamps actuated by the other engine in a stroboscopic manner. When the engine speeds and phase match, the opaque sector of the disc prevents the photosensitive elements from being illuminated. The speed of the slave engine is controlled by adjustment of the pitch of a propeller driven thereby and the propeller pitch is, in turn, under the control of a spring loaded engine driven governor. The governor has a further load in the form of a solenoid exerting a magnetic pull thereon and current through the solenoid is under the control of a control system which is sensitive to the illumination of the aforesaid photosensitive elements when the speed of the slave engine, or the phase thereof, departs from that of the master engine.

摘要翻译： 本说明书公开了一种用于同步发动机的速度并控制发动机的相位，特别是双发飞机的发动机的装置。 在该配置中，一个发动机是主发动机，另一个是从动发动机，并且比较发动机的速度和相位，并且根据比较结果提供信号，以将从动发动机加速或减速到 如果速度和相位不同，则使其速度和相位与主引擎的速度和相位一致。