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公开(公告)号：CA2603942C
公开(公告)日：2013-12-31
申请号：CA2603942
申请日：2006-04-03
Applicant: LUBRIZOL CORP
Inventor： LVOVICH VADIM F , BOYLE FREDERICK P
IPC: F01M11/10
Abstract: A method for determining a fuel-dilution condition of a lubricant used in transportation and industrial equipment. The method uses apparatus that applies a high frequency and optionally a low frequency oscillating signal to electrodes immersed in the fluid and quantifies fluid response to the signals. Apparatus can further include means to control the lubricant temperature, or a temperature sensor to monitor the lubricant temperature at the electrodes. The method monitors response of the lubricant to the applied electrical signals and determines ratios of lubricant properties. The high-frequency lubricant property ratio or change of high frequency lubricant property as a function of a lubricant use-measure is compared to a predicted ratio based on lubricant use and an estimate of the lubricant's fuel dilution determined. The optional low-frequency lubricant property ratio is compared to thresholds to determine when the lubricant loses the ability to control fuel dilution. The method outputs information relevant to the fuel-dilution condition of the lubricant.
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公开(公告)号：AU2011332165A1
公开(公告)日：2013-05-30
申请号：AU2011332165
申请日：2011-11-16
Applicant: LUBRIZOL CORP
Inventor： BOYLE FREDERICK P
Abstract: A method for filtering condition measurements made of a fluid used in transportation and industrial equipment that operates in varying state to meet performance requirements. Equipment operating state is monitored by fluid temperature without need for further input.
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公开(公告)号：AU2005242830B2
公开(公告)日：2010-12-23
申请号：AU2005242830
申请日：2005-05-03
Applicant: LUBRIZOL CORP
Inventor： LVOVICH VADIM F , BOYLE FREDERICK P
Abstract: A method for determining condition of a highly resistive fluid in transportation and industrial equipment. The method uses apparatus that applies a high frequency oscillating voltage signals to electrodes immersed in the fluid and quantifies fluid response to the signals. Apparatus can further include means to control the temperature of the fluid, or a temperature sensor to monitor the temperature of fluid at the electrodes. The method monitors response of the fluid to the electrical signal applied by the apparatus. The frequency of the applied signal for the method is predetermined as a function of apparatus electrode geometry, fluid temperature or temperature range, and chemical composition of the fluid being monitored. The magnitude of fluid response relative to initial and the rate of change of the fluid response as a function of equipment use are used to essentially continuously determine fluid condition while in use. In particular, the method can determines approximate contaminant content of the fluid and can determine when the fluid has reached the end of its useful life due to the approximate contaminant content and/or due to loss or ability to disperse additional contaminants as very finely divided suspended particles. For apparatus or applications where the monitored fluid is not controlled to constant temperature, the method includes correcting the temperature sensitive fluid responses for temperature variations for the fluid quality and condition determination. The method can also include determining when essentially complete fluid exchanges are made to the equipment without need for additional input.
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34.发明专利
公开(公告)号：AU2002247205B2
公开(公告)日：2007-05-31
申请号：AU2002247205
申请日：2002-02-25
Applicant: LUBRIZOL CORP
Inventor： LVOVICH VADIM F , BOYLE FREDERICK P
Abstract: An apparatus and method for monitoring a highly electrically-resistive fluid. The method includes applying across the fluid an AC signal that includes at least two different AC electrical potentials, with at least one AC electrical potential having a non-zero DC offset, measuring the fluid's electrical response at each applied potential, and analyzing the fluid quality and/or condition using the applied AC signal and the corresponding measured electrical responses. The invention finds application in conjunction with the on-line (i.e., while in use) monitoring a highly resistive fluids such as, e.g., lubricants, natural and/or synthetic motor oils optionally including standard additives and/or adjuncts, combustion engine fuels, other hydrocarbon-based fluids used in transportation and industrial applications, and the like.
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公开(公告)号：AU2001297593B2
公开(公告)日：2007-05-31
申请号：AU2001297593
申请日：2001-11-05
Applicant: LUBRIZOL CORP
Inventor： MATTHEWS JOHN H , MARTIN JOHN R , RUFF ALBERT L , SILZLE L WILLIAM JR , BOYLE FREDERICK P , GERBER GARY E
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Patent Agency Ranking
公开(公告)号：AU2006304261A1
公开(公告)日：2007-04-26
申请号：AU2006304261
申请日：2006-10-13
Applicant: LUBRIZOL CORP
Inventor： KAMPE PETER V , LVOVICH VADIM F , BOYLE FREDERICK P
Abstract: A method and apparatus for determining the total base number of a used lubricant from an open, all loss, lubricating system. An AC voltage signal is applied between electrodes immersed in the used lubricant and a used-lubricant dependent response to the applied signal measured. The used lubricant base number is determined from the response. To allow for changes in the fresh lubricant inputted to the open lubricating system, the method and apparatus can have means for determining properties of the fresh lubricant needed to determine the total base number of used lubricant. To allow for possible contamination of the used lubricant, the method and apparatus can have means for determining the concentration of contamination and for determining properties of the contaminant needed to determine the total base number of used lubricant.
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公开(公告)号：BRPI0406660A
公开(公告)日：2005-12-06
申请号：BRPI0406660
申请日：2004-01-06
Applicant: LUBRIZOL CORP
Inventor： BOYLE FREDERICK P , TAYLOR WILLIAM P , GRAF MICHELLE M
Abstract: An apparatus for on-line optical monitoring of the quality and/or chemical condition of a fluid; in particular, a hydrocarbon-based fluid used in transportation and industrial applications. The apparatus includes an IR-transparent internal-reflectance-element (IRE) that has at least one essentially flat surface and at least one convex surface, and at least two IR light paths of uniquely determined central-frequency and bandwidth with light from a source entering a flat surface of the IRE, internally reflecting at least once from at least one convex surface of the IRE that can contact a fluid, exiting a flat surface of the IRE, and being received at a detector. The apparatus also includes electronics to power the source and receive output from the detector of each light path. The apparatus can be controlled to independently monitor the IR light reflected within the IRE at the uniquely determined frequency of each path, and to communicate information relevant to the IR light detected.
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公开(公告)号：DE69918193T2
公开(公告)日：2005-07-21
申请号：DE69918193
申请日：1999-01-11
Applicant: LUBRIZOL CORP
Inventor： BOYLE FREDERICK P , DAMM KLAUS-WERNER , GARVIN GARY A , ORLOFF GARY L
Abstract: A system (1) for measuring the quality and level of lubricant in an engine lubricant reservoir (5) includes valve means (26) for selectively directing a portion of lubricant from the engine (2) through a first conduit (25) for return to the engine or through a second conduit (31) for removal from the engine. Within the first conduit are one or more sensors (28) for sensing the condition of the lubricant passing through the first conduit. The sensors are monitored by a controller (30) which is operative selectively to cause the valve (26) means to block the flow of lubricant through the first conduit and direct a portion of the lubricant through the second conduit (31) based on the monitored conditions of the lubricant. Also, the controller (30) directs a supply of fresh lubricant to the engine in response to the lubricant in the engine lubricant reservoir dropping below a predetermined level. The lubricant flowing through the second conduit may either be stored in a lubricant reservoir (32) and if desired subsequently intermittently mixed with the fuel in the fuel tank (11), or caused to flow directly to the fuel tank on command of the valve means by the controller which limits the amount of lubricant that can be added to the fuel tank so as not to exceed a predetermined lubricant/fuel ratio for the engine.
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公开(公告)号：AU2004204512A1
公开(公告)日：2004-07-29
申请号：AU2004204512
申请日：2004-01-06
Applicant: LUBRIZOL CORP
Inventor： BOYLE FREDERICK P , TAYLOR WILLIAM P , GRAF MICHELLE M
Abstract: An apparatus for on-line optical monitoring of the quality and/or chemical condition of a fluid; in particular, a hydrocarbon-based fluid used in transportation and industrial applications. The apparatus includes an IR-transparent internal-reflectance-element (IRE) that has at least one essentially flat surface and at least one convex surface, and at least two IR light paths of uniquely determined central-frequency and bandwidth with light from a source entering a flat surface of the IRE, internally reflecting at least once from at least one convex surface of the IRE that can contact a fluid, exiting a flat surface of the IRE, and being received at a detector. The apparatus also includes electronics to power the source and receive output from the detector of each light path. The apparatus can be controlled to independently monitor the IR light reflected within the IRE at the uniquely determined frequency of each path, and to communicate information relevant to the IR light detected.
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公开(公告)号：AU2003284079A1
公开(公告)日：2004-05-04
申请号：AU2003284079
申请日：2003-10-14
Applicant: LUBRIZOL CORP
Inventor： LVOVICH VADIM F , SKURSHA DAVID B , BOYLE FREDERICK P
Abstract: A method for determining quality and condition of a highly resistive fluid in transportation and industrial equipment. The method uses apparatus that applies a multitude of oscillating voltage signals at determined frequencies and offsets to electrodes immersed in the fluid and quantifies fluid response to the signals. The method monitors response of the fluid to a preferred three fixed electrical signals applied by the apparatus, a high and a medium frequency signal with zero offset voltage and a low frequency signal with an offset voltage. For apparatus or applications where the monitored fluid is not controlled to constant temperature, the method includes correcting the temperature sensitive fluid responses for temperature variations for the fluid quality and condition determination. The method can also include determining when essentially complete fluid exchanges are made to the equipment without need for additional input.
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