公开(公告)号：US20080175717A1

公开(公告)日：2008-07-24

申请号：US11626482

申请日：2007-01-24

申请人： Harold Robert Schnetzka ,  E. Curtis Eichelberger ,  Paul Nemit

发明人： Harold Robert Schnetzka ,  E. Curtis Eichelberger ,  Paul Nemit

IPC分类号： F04B49/20 ,  F04B41/06 ,  F04B49/06

CPC分类号： F04C28/02 ,  F04B39/0027 ,  F04B41/06 ,  F04B2201/1201 ,  F04C28/08 ,  F04C2270/05 ,  Y10S388/911

摘要： A system for cancelling or attenuating noise in at least two positive displacement compressors proximately located from each other for use with a heating or cooling system. A lead compressor and a lag compressor have a controllable rotational speed and phase of operation. A controller selectably controls the rotational speed and the phase of operation of each of the compressors. The controller controls the rotational speed of the compressors at substantially the same speed for each compressor, with a phase-lock loop and a comparator circuit for each compressor. The controller controls the phase of operation of the compressors through an oscillator so that the lead and lag compressor pressure pulses are spaced between successive outlet pressure pulses to effectively double the combined pulsation frequency for noise attenuation.

摘要翻译： 一种用于抵消或衰减至少两个相邻位置的容积式压缩机中的噪声的系统，用于与加热或冷却系统一起使用。 导向压缩机和滞后压缩机具有可控的转速和运行阶段。 控制器可选地控制每个压缩机的转速和运行阶段。 控制器以每个压缩机基本上相同的速度控制压缩机的转速，具有用于每个压缩机的锁相环和比较器电路。 控制器通过振荡器控制压缩机的运行阶段，使得引导和滞后的压缩机压力脉冲在连续的出口压力脉冲之间间隔开，以有效地加倍组合的脉动频率以进行噪声衰减。

公开(公告)号：US20050123407A1

公开(公告)日：2005-06-09

申请号：US10728157

申请日：2003-12-04

申请人： Harold Schnetzka ,  E. Curtis Eichelberger ,  Paul Nemit

发明人： Harold Schnetzka ,  E. Curtis Eichelberger ,  Paul Nemit

IPC分类号： F04B39/00 ,  F04B41/06 ,  F04B49/06 ,  F04C18/16 ,  F04C28/02 ,  F04C28/08 ,  F04C29/06 ,  F04B1/00

CPC分类号： F04C28/02 ,  F04B39/0027 ,  F04B41/06 ,  F04B49/065 ,  F04C18/16 ,  F04C28/08 ,  F04C29/061 ,  F04C29/068 ,  F04C2270/05

摘要： A system is provided for attenuating noise in at least two positive displacement compressors proximately located from each other for use with at least one heating or cooling system. A lead compressor and a lag compressor have a selectably controllable rotational speed and a selectably controllable phase of operation. A controller selectably controls the rotational speed and the phase of operation of each of the compressors. The controller controls the rotational speed of the compressors at a predetermined rotational speed that is substantially the same for each of the compressors. The controller controls the phase of operation of the compressors by shifting the phase of operation of the lag compressor so that an outlet pressure pulse operatively produced by the lag compressor is substantially evenly spaced between successive outlet pressure pulses operatively produced by the reference compressor.

摘要翻译： 提供了一种系统，用于衰减至少两个彼此近似定位的容积式压缩机中的噪声，以与至少一个加热或冷却系统一起使用。 引导压缩机和滞后压缩机具有可选择的可控旋转速度和可选择地可控的操作相位。 控制器可选地控制每个压缩机的转速和运行阶段。 控制器以对于每个压缩机基本上相同的预定转速来控制压缩机的转速。 控制器通过改变滞后压缩机的运行阶段来控制压缩机的运行阶段，使得由滞后压缩机可操作地产生的出口压力脉冲基本上均匀地间隔在由参考压缩机可操作地产生的连续出口压力脉冲之间。

公开(公告)号：US20080232950A1

公开(公告)日：2008-09-25

申请号：US11690222

申请日：2007-03-23

申请人： Robert E. Stabley ,  E. Curtis Eichelberger

发明人： Robert E. Stabley ,  E. Curtis Eichelberger

IPC分类号： F01D25/04

CPC分类号： F04D27/001 ,  F04D27/0253 ,  F04D29/464 ,  F05D2250/52 ,  Y10S415/914

摘要： A system and method is provided for detecting and controlling rotating stall in the diffuser region of a compressor. A pressure transducer is placed in the gas flow path downstream of the impeller, preferably in the compressor discharge passage or the diffuser, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the compressor in response to the detection of rotating stall.

摘要翻译： 提供一种用于检测和控制压缩机的扩散器区域中的旋转失速的系统和方法。 压力传感器放置在叶轮下游的气体流路中，优选地位于压缩机排放通道或扩散器中，以测量声压或声压现象。 接下来，使用模拟或数字技术处理来自压力传感器的信号，以确定旋转失速的存在。 通过将检测到的能量量基于测量的声压与检测到的能量相对应于存在旋转档位的预定阈值进行比较来检测旋转失速。 最后，采取适当的纠正措施来响应于旋转失速的检测来改变压缩机的操作。

公开(公告)号：US08337144B2

公开(公告)日：2012-12-25

申请号：US12960024

申请日：2010-12-03

申请人： Robert E. Stabley ,  E. Curtis Eichelberger

发明人： Robert E. Stabley ,  E. Curtis Eichelberger

IPC分类号： F01D25/04

CPC分类号： F04D27/001 ,  F04D27/0253 ,  F04D29/464 ,  F05D2250/52 ,  Y10S415/914

摘要： A system and method is provided for detecting and controlling rotating stall in the diffuser region of a compressor. A pressure transducer is placed in the gas flow path downstream of the impeller, preferably in the compressor discharge passage or the diffuser, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the compressor in response to the detection of rotating stall.

摘要翻译： 提供一种用于检测和控制压缩机的扩散器区域中的旋转失速的系统和方法。 压力传感器放置在叶轮下游的气体流路中，优选地位于压缩机排放通道或扩散器中，以测量声压或声压现象。 接下来，使用模拟或数字技术处理来自压力传感器的信号，以确定旋转失速的存在。 通过将检测到的能量量基于测量的声压与检测到的能量相对应于存在旋转档位的预定阈值进行比较来检测旋转失速。 最后，采取适当的纠正措施来响应于旋转失速的检测来改变压缩机的操作。