SEAL ARRANGEMENT WITH IMPROVED SHAFT BUSHING FOR A ROTATING SHIP PROPELLER SHAFT
A seal arrangement for sealing a propeller shaft where it penetrates through the hull of a watercraft includes a shaft bushing around this portion of the shaft, one or more seal rings forming a seal around the shaft bushing, and a stationary support holding the seal ring or rings. The shaft bushing...
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Main Authors | , |
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Format | Patent |
Language | English French |
Published |
12.11.2013
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Subjects | |
Online Access | Get full text |
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Summary: | A seal arrangement for sealing a propeller shaft where it penetrates through the hull of a watercraft includes a shaft bushing around this portion of the shaft, one or more seal rings forming a seal around the shaft bushing, and a stationary support holding the seal ring or rings. The shaft bushing includes an outer bushing part made of a wear-resistant material, arranged coaxially around an inner bushing part made of a material having a high thermal conductivity. The thickness of the outer part relative to the thickness of the inner part is a ratio in a range from 1:10 to 1:3. The two-part shaft bushing can provide optimized thermal conductivity and heat dissipation away from the seal rings to the cool exterior water environment, as well as optimized wear-resistance, corrosion resistance and reduced friction for the seal rings. |
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Bibliography: | Application Number: CA20132813947 |