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US 12,422,426 B2Granted
Electrically insulated block-on-rotating-ring test unit and method
AssigneeSouthwest Research Institute
InventorsCarlos J. Sanchez, Peter Mark Lee
Life of this patent
Estimating the term…
Abstract
An electrically insulated block-on-rotating-ring test unit and method, to evaluate the effects of electrical potential on material pairs and fluids under mechanical load and in sliding contact. The fluids may comprise lubricants and oils utilized in electrical vehicles.
Claims20
An electrically insulated block-on-rotating ring test unit comprising:
- an electrically isolated rotating ring;
- an electrically isolated block configured to be mechanically loaded against said electrically isolated rotating ring;
- a negative electrode in electrical communication with said electrically isolated block and a positive electrode in electrical communication with said electrically isolated rotating ring or a positive electrode in electrical communication with said electrically isolated block and a negative electrode in communication with said electrically isolated rotating ring, wherein said negative and positive electrodes are configured to supply an electrical potential between said electrically isolated rotating ring and said electrically isolated block.
An electrically insulated block-on-rotating ring test unit comprising:
- an electrically isolated rotating ring;
- an electrically isolated block configured to be mechanically loaded against said electrically isolated rotating ring wherein said electrically isolated block and said electrically isolated rotating ring are composed of electrically insulated polymeric material;
- a negative electrode in electrical communication with said electrically isolated block and a positive electrode in electrical communication with said electrically isolated rotating ring or a positive electrode in electrical communication with said electrically isolated block and a negative electrode in communication with said electrically isolated rotating ring, wherein said positive electrode or negative electrode, when in communication with said electrically isolated rotating ring, includes a spring tension to provide electrical engagement of said positive or negative electrode with said electrically isolated rotating ring;
- and
- wherein said negative and positive electrodes are configured to supply an electrical potential between said electrically isolated rotating ring and said electrically isolated block.
2 more elements
A method for evaluating the effects of electrical potential on one or more fluids in a test unit comprising:
- supplying a test unit having an electrically isolated rotating ring, an electrically isolated block configured to be mechanically loaded against said electrically isolated rotating ring, a negative electrode in electrical communication with said electrically isolated block and a positive electrode in electrical communication with said electrically isolated rotating ring or a positive electrode in electrical communication with said electrically isolated block and a negative electrode in communication with said electrically isolated rotating ring, wherein said negative and positive electrodes are configured to supply an electrical potential between said electrically isolated rotating ring and said electrically isolated block;
- introducing one or more fluids between said electrically isolated rotating ring and said electrically isolated block;
- rotating said electrically isolated rotating ring relative to said electrically isolated block;
- and
- applying a mechanical load and an electrical potential between said electrically isolated block and said electrically isolated rotating ring.
2 more elements
Dependencies are inferred from the claim text.