公开(公告)号：US08421486B2

公开(公告)日：2013-04-16

申请号：US12522529

申请日：2008-06-18

申请人： Yo Akiyama ,  Akihiko Yano ,  Junichi Kaga ,  Yoshihiro Deguchi ,  Taketoshi Yamaura

发明人： Yo Akiyama ,  Akihiko Yano ,  Junichi Kaga ,  Yoshihiro Deguchi ,  Taketoshi Yamaura

IPC分类号： G01R27/08 ,  G01R27/26 ,  G01N11/00

CPC分类号： G01N33/2888 ,  G01N27/02 ,  G01N2011/0066

摘要： An oil-degradation detecting apparatus that can more accurately judge oil degradation and a mechanical system having a rotating part or a sliding part and including the oil-degradation detecting apparatus are provided. Two plates (21, 22) are disposed in an oil flow path (11) so as to be parallel to each other, an ammeter (24) measures a current that flows when an AC voltage is applied between the two plates (21, 22), a voltmeter measures the voltage between the plates (21, 22), and a signal processor (processor) (31) determines the electrical conductivity and the dielectric constant of the oil (10) based on the measurement results from the ammeter (24) and the voltmeter (25) and judges degradation of the oil (10) based on the electrical conductivity and the dielectric constant.

摘要翻译： 提供了能够更准确地判断油劣化的油劣化检测装置和具有旋转部或滑动部的机械系统，并且包括油劣化检测装置。 两个板（21,22）设置在油流路（11）中以彼此平行，电流表（24）测量在两个板（21,22）之间施加AC电压时流动的电流 ），电压表测量板（21,22）之间的电压，并且信号处理器（处理器）（31）基于来自电流表（24）的测量结果确定油（10）的电导率和介电常数 ）和电压计（25），并且基于导电率和介电常数来判断油（10）的劣化。

公开(公告)号：US20090315574A1

公开(公告)日：2009-12-24

申请号：US12522529

申请日：2008-06-18

申请人： Yo Akiyama ,  Akihiko Yano ,  Junichi Kaga ,  Yoshihiro Deguchi ,  Taketoshi Yamaura

发明人： Yo Akiyama ,  Akihiko Yano ,  Junichi Kaga ,  Yoshihiro Deguchi ,  Taketoshi Yamaura

IPC分类号： G01R27/08

CPC分类号： G01N33/2888 ,  G01N27/02 ,  G01N2011/0066

摘要： An oil-degradation detecting apparatus that can more accurately judge oil degradation and a mechanical system having a rotating part or a sliding part and including the oil-degradation detecting apparatus are provided. Two plates (21, 22) are disposed in an oil flow path (11) so as to be parallel to each other, an ammeter (24) measures a current that flows when an AC voltage is applied between the two plates (21, 22), a voltmeter measures the voltage between the plates (21, 22), and a signal processor (processor) (31) determines the electrical conductivity and the dielectric constant of the oil (10) based on the measurement results from the ammeter (24) and the voltmeter (25) and judges degradation of the oil (10) based on the electrical conductivity and the dielectric constant.

摘要翻译： 提供了能够更准确地判断油劣化的油劣化检测装置和具有旋转部或滑动部的机械系统，并且包括油劣化检测装置。 两个板（21,22）设置在油流路（11）中以彼此平行，电流表（24）测量在两个板（21,22）之间施加AC电压时流动的电流 ），电压表测量板（21,22）之间的电压，并且信号处理器（处理器）（31）基于来自电流表（24）的测量结果确定油（10）的电导率和介电常数 ）和电压计（25），并且基于导电率和介电常数来判断油（10）的劣化。

公开(公告)号：US08224600B2

公开(公告)日：2012-07-17

申请号：US12252810

申请日：2008-10-16

申请人： Yo Akiyama ,  Akihiko Yano ,  Junichi Kaga

发明人： Yo Akiyama ,  Akihiko Yano ,  Junichi Kaga

IPC分类号： G01R27/00

CPC分类号： G01N33/2876 ,  G01N27/221

摘要： A method of monitoring deterioration of lubricating oil and a device therefore capable of judging deterioration of the oil with high accuracy suppressing measurement error due to mixing of foreign matter in the oil. Correlation between relative permittivity and TBN (total base number) of the lubricating oil is obtained beforehand (step S1), electric current and voltage are measured (step S2) when high-frequency voltage is applied between a pair of electrodes located in an oil path in a gas engine, permittivity of the oil is detected (step S3) based on the measurement of current and voltage, TBN of the oil is obtained (step S4) from the correlation between relative permittivity and TBN, and deterioration of the oil is judged by the obtained value of TBN.

摘要翻译： 一种监测润滑油的劣化的方法以及因此能够以高精度判断油的劣化而抑制油中的异物混合引起的测量误差的装置。 预先获得润滑油的相对介电常数和TBN（总碱值）之间的相关性（步骤S1），当在位于油路中的一对电极之间施加高频电压时，测量电流和电压（步骤S2） 在气体发动机中，基于电流和电压的测量来检测油的介电常数（步骤S3），从相对介电常数和TBN之间的相关性获得油的TBN（步骤S4），并且判断油的劣化 通过获得的TBN值。

公开(公告)号：US20090216471A1

公开(公告)日：2009-08-27

申请号：US12252810

申请日：2008-10-16

申请人： Yo AKIYAMA ,  Akihiko Yano ,  Junichi Kaga

发明人： Yo AKIYAMA ,  Akihiko Yano ,  Junichi Kaga

IPC分类号： G01N27/02

CPC分类号： G01N33/2876 ,  G01N27/221

摘要： A method of monitoring deterioration of lubricating oil and a device therefore capable of judging deterioration of the oil with high accuracy suppressing measurement error due to mixing of foreign matter in the oil. Correlation between relative permittivity and TBN (total base number) of the lubricating oil is obtained beforehand (step S1), electric current and voltage are measured (step S2) when high-frequency voltage is applied between a pair of electrodes located in an oil path in a gas engine, permittivity of the oil is detected (step S3) based on the measurement of current and voltage, TBN of the oil is obtained (step S4) from the correlation between relative permittivity and TBN, and deterioration of the oil is judged by the obtained value of TBN.

摘要翻译： 一种监测润滑油的劣化的方法以及因此能够以高精度判断油的劣化而抑制油中的异物混合引起的测量误差的装置。 预先获得润滑油的相对介电常数和TBN（总碱值）之间的相关性（步骤S1），当在位于油路中的一对电极之间施加高频电压时，测量电流和电压（步骤S2） 在气体发动机中，基于电流和电压的测量来检测油的介电常数（步骤S3），从相对介电常数和TBN之间的相关性获得油的TBN（步骤S4），并且判断油的劣化 通过获得的TBN值。