Impregnated convoluted boot
AssigneeGKN Automotive AG
InventorsThomas Schmidt, Joachim Wette, Thomas Schafferus, Herbert Konegen, Hans Schreiber
Life of this patent
Estimating the term…
Loading patent…
AssigneeGKN Automotive AG
InventorsThomas Schmidt, Joachim Wette, Thomas Schafferus, Herbert Konegen, Hans Schreiber
Estimating the term…
The invention relates to an impregnating agent for a convoluted boot consisting of a thermplastic or elastomer material and used for covering the chamber of a joint, especially a rotating joint subjected to large articulation angles, which joint chamber is filled with a lubricant, said convoluted boot comprising a plurality of folds and two end collars, with the surfaces of the convoluted boot wall contacting one another when the joint is subjected to large articulation angles. It is the object of the invention to reduce the wear and eliminate squeaking symptoms of convoluted boots treated with the inventive impregnating agent. In accordance with the invention, the objective is achieved in that the impregnating agent contains a carrier fluid, an oil dissolved in the carrier fluid and having a molecular weight of >200, and a wetting agent which is soluble in oil and which reduces the surface tension of the oil.
A method of impregnating convoluted boots with an impregnating agent comprising applying an impregnating agent to a convoluted boot to be mounted on a driveshaft wherein the impregnating agent comprises an oil with a molecular weight of greater than 200 and a wetting agent which is dissolved in the oil and reduces the surface tension of the oil.
A method of lubricating convoluted boots in a driveline assembly comprising providing a finish-assembled driveshaft including at least one convoluted boot, and applying an impregnating agent to the convoluted boot, wherein the impregnating agent comprises a carrier fluid, an oil dissolved in the carrier fluid and having a molecular weight greater than 200 and a wetting agent dissolved in the oil and which reduces the surface tension of the oil.
Dependencies are inferred from the claim text.