公开(公告)号：US20080296896A1

公开(公告)日：2008-12-04

申请号：US11658049

申请日：2005-07-22

申请人： Christopher John Spenceley ,  Roger Stuart Silcock ,  Wayne Kenneth Aldridge ,  Jarlath Michael McEntee ,  Stephen Charles Welty ,  Gordon Smith ,  Christpher Mark Hardingham

发明人： Christopher John Spenceley ,  Roger Stuart Silcock ,  Wayne Kenneth Aldridge ,  Jarlath Michael McEntee ,  Stephen Charles Welty ,  Gordon Smith ,  Christpher Mark Hardingham

IPC分类号： H02P9/04 ,  F02G5/02 ,  F02G1/043

CPC分类号： H02P9/06 ,  F02G1/043 ,  F02G1/047 ,  F02G2275/10 ,  F02G2275/20 ,  H02P25/06 ,  H02P2101/30 ,  Y02E20/14

摘要： A Stirling engine includes a reciprocating piston which drives an alternator to provide an electrical output. The current signal is measured by a current monitor and a fast Fourier Transform value is produced. The FFT of the current signal has been found to be directly related to the stability of operation of the Stirling engine. As harmonic peaks in the FFT increase, this indicates that the stroke length of the piston is approaching or exceeding a safe maximum. Correction action, such as a reduction in heat to the Stirling engine, can be taken in consequence.A variety of stroke length detectors are also disclosed, for use in combination with, or separately from, the FFT analysis of the current signal. Optical and mechanical switches and analogue sensors are disclosed, along with an accelerometer mounted upon the casing of the Stirling engine.

摘要翻译： 斯特林发动机包括往复式活塞，其驱动交流发电机以提供电输出。 电流信号由电流监视器测量，产生快速傅里叶变换值。 已经发现电流信号的FFT与斯特林发动机运行的稳定性直接相关。 随着FFT中的谐波峰值增加，这表明活塞的行程长度接近或超过了安全最大值。 因此可以采取诸如减少对斯特林发动机的热量的校正动作。 还公开了各种行程长度检测器，用于与当前信号的FFT分析组合或分开。 公开了光学和机械开关和模拟传感器，以及安装在斯特林发动机的壳体上的加速度计。