Filter integration for a lubrication analysis system

• US 7,442,291 B1
• Filed: 04/09/2003
• Issued: 10/28/2008
• Est. Priority Date: 04/09/2002
• Status: Expired due to Fees

• Current Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Original Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Inventors: Liu, Chung-Chiun, Discenzo, Frederick M., Dudik, Laurie A.
• Primary Examiner(s): Drodge; Joseph W
• Application Number:
  US10/409,895
• Time in Patent Office: 2,029 Days
• Field of Search: 210/85, 210/87, 210/90, 210/96.1, 210/143, 210/149, 210/435, 210/440, 210/443, 96417-422, 738/665
• US Class Current: 210/85
• CPC Class Codes: B01D 2201/54 Computerised or programmable systems
• CPC Class Codes: B01D 35/143 Filter condition indicators

Abstract

A system and method relating to in situ monitoring, analysis, and control of a lubricating material within a lubrication filter assembly is provided. A filter-sensor integration comprises a lubrication filter assembly and at least one lubrication sensing assembly, wherein the lubrication sensing assembly comprising at least one sensor array, and the sensor array comprises of at least one sensor. The lubrication filter assembly comprises a housing which defines a chamber, wherein lubricating material enters the chamber through a filter material. The lubrication sensing assembly is embedded into the chamber of the lubrication filter assembly, and the lubrication sensing device is positioned relative to the filter material so that the at least one sensor of the sensor array senses in situ different parameters of the lubricating fluid, analyzes measured parameters to determine health of the system, and generates a control signal to protect machinery and processes.

Claims

1. A filter-sensor integration, comprising;

a filter assembly having a housing defining an interior chamber, the filter assembly comprising a filter material forming a filter enclosing the chamber; and

a sensing assembly comprising a base, an extension perpendicular from the base, the extension comprising a v-groove formed along a vertical direction thereof and at least one sensor located on a surface portion of the v-groove in the extension of the sensing assembly, wherein the portion of the extension is positioned within the interior chamber of the filter such that it is enclosed by the filter and integrally fits within the interior chamber.

2. The filter-sensor integration of claim 1, wherein lubricating material enters the chamber through the filter material.

3. The filter-sensor integration of claim 2, the lubrication sensing assembly being embedded within the chamber of the lubrication filter assembly.

4. The filter-sensor integration of claim 3, the sensing assembly being positioned relative to the filter material so that the at least one sensor senses in situ different parameters of a fluid.

5. The filter-sensor integration of claim 1, further comprising a processor that receives fluid-related data from the at least one sensor, and processes the data in connection with diagnosing a state of the fluid.

6. The filter-sensor integration of claim 5, the processor diagnosing a state of a machine or device employing the fluid.

7. The filter-sensor integration of claim 5, the processor performs a data fusion analysis relating to data gathered from a plurality of sensors.

8. The filter-sensor integration of claim 5, the processor relays the processed data to a host computer, the host computer performing an analysis relating to state of the fluid.

9. The filter-sensor integration of claim 5 further comprising wireless communication means for receiving and/or transmitting data.

10. The filter-sensor integration of claim 5, the processor is mounted to the sensing assembly.

11. The filter-sensor integration of claim 10 further comprising a separate housing that facilitates protection of the processor.

12. The filter-sensor integration of claim 5, the processor employs a trained classifier in connection with fluid analysis.

13. The filter-sensor integration of claim 12, the classifier is implicitly trained.

14. The filter-sensor integration of claim 12, the classifier comprises at least one of:

a neural network, an expert system, a Bayesian network, a support vector machine, and a data fusion engine.

15. The filter-sensor integration of claim 1, further comprising a processor that receives fluid-related data from the at least one sensor, and processes the data in connection with prognosing a state of the fluid.

16. The filter-sensor integration of claim 15, the processor prognosing a state of a machine or device employing the fluid.

17. The filter-sensor integration of claim 1, wherein the at least one sensor(s) senses at least one of the following:

pH, chemical composition, temperature, conductivity, viscosity, and pressure.

18. A fluid analysis system, comprising;

a filter having a housing, the filter comprising filter material that provides for fluid to pass there through, the filter housing defining an interior chamber enclosed by the filter material;

a sensing assembly comprising an extension that comprises a v-groove formed along a vertical direction of the extension, a sensing array located on a surface portion of the v-groove, and having a plurality of sensors that sense various modalities of the fluid, the sensing assembly modularly integrating with the filter such that the extension is positioned such that it resides within the interior chamber, is enclosed by the filter and at least a subset of the sensors are exposed to the fluid; and

a processing system that receives data from the sensors and performs an analysis of the fluid based at least in part on the data.

19. The fluid analysis system of claim 18, the filter and sensing assembly coupling respectively together via a female/male configuration.

20. The fluid analysis system of claim 18, the sensing array residing on a top surface of the extension.

21. The fluid analysis system of claim 18, the sensing array residing on a circumferential surface of the extension.

22. The fluid analysis system of claim 18, the processing system comprising a memory.

23. The fluid analysis system of claim 18, the processing system comprising a trained classifier.

24. The fluid analysis system of claim 18, the plurality of sensors comprising at least two of:

a pH sensor, a viscosity sensor, a temperature sensor, a pressure sensor, a glucose sensor, a current sensor, a voltage sensor, and a vapor sensor.

25. The fluid analysis system of claim 18, analyzing a lubricant.

26. The fluid analysis system of claim 18, analyzing a gas.

27. The fluid analysis system of claim 18, analyzing blood.

28. The fluid analysis system of claim 18, analyzing a beverage.

29. The fluid analysis system of claim 18, the processing system being integrally formed on the sensing assembly.

30. The fluid analysis system of claim 29, further comprising a power supply that is integral to the sensing assembly.

31. The fluid analysis system of claim 30, the power supply employs energy scavenging schemes.