SEAL ASSEMBLY IN SITU LIFETIME MEASUREMENT

• US 20090317028A1
• Filed: 06/24/2008
• Published: 12/24/2009
• Est. Priority Date: 06/24/2008
• Status: Abandoned Application

• Current Assignee: Trelleborg Sealing Solutions US Incorporated (Trelleborg AB)
• Original Assignee: Trelleborg Sealing Solutions US Incorporated (Trelleborg AB)
• Inventors: Castleman, Larry
• Application Number:
  US12/145,203
• Publication Number:
  US 20090317028A1
• Time in Patent Office: Days
• US Class Current: 384/448
• CPC Class Codes: F16C 17/24 with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
• CPC Class Codes: F16C 33/201 Composition of the plastic
• CPC Class Codes: F16C 33/74 of sliding-contact bearings
• CPC Class Codes: F16J 15/3296 Arrangements for monitoring the condition or operation of elastic sealings F16J15/326 takes precedence; Arrangements for control of elastic sealings, e.g. of their geometry or stiffness

Abstract

A bearing system for bearing between two members including a polymer bearing disposed between the two members, a measurement device disposed within the bearing for measuring an aspect of at least one of the bearing and the environment between the two members, the device creating a signal related to the measured aspect and a communication device for communicating the signal away from the polymer bearing.

Claims

1. A bearing system for bearing between two members, said bearing system comprising:

a polymer bearing disposed between the two members;

a measurement device disposed within said polymer bearing for measuring an aspect of at least one of said bearing and an environment between the two members, said measurement device creating a signal related to a measured said aspect; and

a communication device for communicating said signal away from said polymer bearing.

2. The bearing system of claim 1, wherein said measurement device includes at least one sensor that measures an indicator of bearing performance relative to said polymer bearing.

3. The bearing system of claim 2, wherein said bearing performance sensor includes at least one of a pressure sensor, a temperature sensor, a leakage sensor, a friction sensor, a strain sensor, a fluid film thickness sensor, a wear sensor, a deformation sensor, a vibration sensor, and a noise sensor.

4. The bearing system of claim 2, wherein said sensor measures at least one of a permanent condition and a temporary condition of said polymer bearing.

5. The bearing system of claim 1, wherein said measurement device includes a material disposed within said polymer bearing, said material changing its material properties dependent upon at least one of applied pressure, temperature, shear, strain, fretting, material loss, wear, exposure to system components, system fluid, and time.

6. The bearing system of claim 5, wherein said material includes one of a polymer material and a metal material.

7. The bearing system of claim 5, wherein said material includes a highly conductive polymer.

8. The bearing system of claim 1, wherein said measurement device is remotely powered.

9. The bearing system of claim 1, wherein said measurement device is self-powered.

10. The bearing system of claim 1, wherein said signal created is one of electrical, magnetic, and another wave.

11. The bearing system of claim 1, wherein said communication device is one of a wired and a wireless connection for transmitting said signal away from said polymer bearing.

12. The bearing system of claim 1, wherein said communication device is a radio-frequency identification device.

13. The bearing system of claim 12, wherein said radio-frequency identification device applies power to said measurement device.

14. The bearing system of claim 1, further comprising a signal processor, said communication device forwarding said signal to said signal processor for processing.

15. A bearing signal processor assembly, comprising:

a processor having a bearing signal input and a signal output, the bearing signal processor assembly being for a bearing system including a polymer bearing;

a memory connected to said processor, said memory including at least one of performance data and a plurality of thresholds regarding a plurality of polymer bearing systems, said processor configured for comparing at least one input signal to at least one of said performance data and said plurality of thresholds to create an output signal; and

a communication device configured for communicating said output signal to an operator.

16. The bearing signal processor assembly of claim 15, wherein said output signal is in the form of a feedback signal.

17. The bearing signal processor assembly of claim 16, wherein said feedback signal to said operator includes at least one of a stop signal, a reduce use signal, a reduce speed signal, a nominal signal, a bearing lifetime remaining signal, a bearing leakage signal, a bearing friction signal, a bearing system out of bounds signal, a maintenance required signal, and a bearing replacement signal.

18. The bearing signal processor assembly of claim 15, wherein said performance data are historical and are disposed in an Extensible Markup Language file.

19. The bearing signal processor assembly of claim 15, wherein said plurality of thresholds are disposed in an Extensible Markup Language file.

20. A computer-readable storage medium system, comprising:

a computer-readable storage medium having polymer bearing performance criteria stored thereon; and

a computing device, said computer-readable storage medium being mounted to said computing device, said computing device including;

a processor in operative communication with said computer-readable storage medium; and

a radio-frequency identification reader for obtaining a bearing signal, said radio-frequency identification reader passing an obtained said bearing signal to said processor;

wherein said computer-readable storage medium includes file information specifying a plurality of threshold bearing signals, said processor comparing said obtained bearing signal to said plurality of threshold bearing signals whereby said processor computes an output signal based upon whether said obtained bearing signal is within bounds of said plurality of threshold bearing signals.

21. A computer-readable storage medium system, comprising:

a computer-readable storage medium having polymer bearing performance criteria stored thereon; and

a computing device, said computer-readable storage medium being mounted to said computing device, said computing device including;

a processor in operative communication with said computer-readable storage medium; and

a communication device for obtaining a bearing signal from a polymer bearing, said communication device passing an obtained said bearing signal to said processor;

wherein said computer-readable storage medium includes file information specifying a plurality of threshold bearing signals, said processor comparing said obtained bearing signal to said plurality of threshold bearing signals whereby said processor computes an output signal based upon whether said obtained bearing signal is within bounds of said plurality of threshold bearing signals.

22. The computer-readable storage medium system of claim 21, wherein said processor forms at least one output signal in form of a stop signal, a reduce use signal, a reduce speed signal, a nominal signal, a bearing lifetime remaining signal, a bearing leakage signal, a bearing friction signal, a bearing system out of bounds signal, a maintenance required signal, and bearing replacement signal.

23. The computer-readable storage medium system of claim 21, further comprising a warning indicator, said processor activating said warning indicator.

24. The computer-readable storage medium system of claim 21, wherein said plurality of threshold bearing signals are disposed in an Extensible Markup Language file.

25. The computer-readable storage medium system of claim 21, wherein the computer-readable storage medium system is configured for communicating data to the internet, said data including at least one of said polymer bearing performance criteria, said obtained bearing signal, said plurality of threshold bearing signals, and said output signal.