System and method for dynamic lubrication adjustment for a lubrication analysis system

• US 7,690,246 B1
• Filed: 01/12/2009
• Issued: 04/06/2010
• Est. Priority Date: 04/02/1998
• 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: Discenzo, Frederick M.
• Primary Examiner(s): Rogers; David A.
• Application Number:
  US12/352,247
• Time in Patent Office: 449 Days
• Field of Search: 73 5305- 5307, 123/1.A, 123/1.R, 123196 R-196 W, 184/6, 184/6.4, 184/108
• US Class Current: 73/53.05
• CPC Class Codes: F16C 19/52 with devices affected by abnormal or undesired conditions
• CPC Class Codes: F16C 41/008 Identification means, e.g. markings, RFID-tags; Data transfer means
• CPC Class Codes: F16N 2250/30 Dialectricum
• CPC Class Codes: F16N 2250/36 Viscosity
• CPC Class Codes: F16N 2260/18 necessity of changing oil
• CPC Class Codes: F16N 2270/52 Viscosity
• CPC Class Codes: F16N 2270/54 pH; Acidity
• CPC Class Codes: F16N 2270/56 Temperature
• CPC Class Codes: G01N 11/16 by measuring damping effect upon oscillatory body
• CPC Class Codes: G01N 2291/0226 Oils, e.g. engine oils
• CPC Class Codes: G01N 2291/0256 Adsorption, desorption, surface mass change, e.g. on biosensors
• CPC Class Codes: G01N 2291/02818 Density, viscosity
• CPC Class Codes: G01N 2291/106 one or more transducer arrays
• CPC Class Codes: G01N 29/022 Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices microdevices per se B81B
• CPC Class Codes: G01N 33/2888 Lubricating oil characteristics, e.g. deterioration lubricating properties G01N33/30
• CPC Class Codes: G01N 33/30 for lubricating properties

Abstract

A system and methodology is provided for dynamically adjusting fluids that operate as a lubricant in a machine. The system includes a control module having a processor and one or more sensors providing data to the processor in situ with the machine, wherein the processor employs the data to monitor the fluid. One or more inputs are provided to receive a plurality of additives that are associated with the fluid, wherein actuators are employed by the processor to dispense the additives to the fluid. The processor dispenses the fluid based upon one or more parameters of the fluid.

Claims

1. A method for maintaining the health of a lubricant in a machine, comprising:

sensing one or more properties of a lubricating fluid in real time in situ with one or more sensors mounted on a moving component of a bearing;

comparing the one or more sensed properties to one or more pre-defined ranges for the one or more sensed properties; and

maintaining the health of the lubricating fluid based at least in part on the comparison.

2. The method of claim 1, wherein maintaining the health of the lubricating fluid further comprises at least one of:

adding volume to the lubricating fluid, flushing the lubricating fluid or introducing additives to the lubricating fluid.

3. The method of claim 1, wherein comparing the one or more sensed properties to the one or more pre-defined ranges further comprises determining whether the lubricating fluid is operating within the one or more predetermined ranges for the one or more sensed properties.

4. The method of claim 1, wherein sensing the one or more properties further comprises sensing a pH of the lubricating fluid.

5. The method of claim 1, wherein sensing the one or more properties further comprises sensing a concentration of at least one chemical contaminant.

6. The method of claim 1, wherein sensing the one or more properties further comprises sensing electrical conductivity.

7. The method of claim 1, wherein sensing the one or more properties further comprises sensing temperature.

8. The method of claim 1, further comprising displaying at least one of:

the one or more sensed properties or the result of the comparison on at least one display screen.

9. The method of claim 1, further comprising communicating at least one of:

the one or more sensed properties or the result of the comparison to a computer system for at least one of storage, processing, or indexing.

10. The method of claim 1, wherein maintaining the health of the lubricating fluid further comprises adding volume to the lubricant.

11. The method of claim 1, wherein maintaining the health of the lubricating fluid further comprises flushing the lubricant.

12. The method of claim 1, wherein maintaining the health of the lubricating fluid further comprises introducing additives to the lubricant.

13. A method for maintaining the health of a lubricant in a machine, comprising:

determining a quality estimate for at least one sensor integrated within a moving component of a bearing;

sensing, in situ, in real time, at least one characteristic of the lubricant within the bearing;

determining the health of the lubricant based at least in part on the sensed at least one characteristic of the lubricant; and

establishing at least one of a recommended maintenance action or a time for the maintenance action to be performed based at least in part on the health of the lubricant.

14. The method of claim 13, further comprising publishing the sensed characteristic of the lubricant and the quality estimate.

15. The method of claim 13, wherein determining the quality estimate further comprises:

determining one or more quality parameters for the sensor;

sensing data;

computing the quality estimate for the sensor based upon the one or more quality parameters; and

reporting the sensor data and the quality estimate.

16. The method of claim 15, wherein determining one or more quality parameters further comprises determining one or more quality parameters based at least in part on a time since a last calibration or an amount of sensor degradation.