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US 5,470,264 AGranted
Marine drive shift shaft mounting system
AssigneeBrunswick Corporation
InventorEdward C. Eick
Life of this patent
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Abstract
A device is provided for isolating a shift shaft extending through an exhaust passage of a bell housing in a marine drive system. The device includes an elongated sleeve for receiving the shift shaft therein. The sleeve has a first portion sealably mounted in a first bore extending through the top wall of the exhaust passage and a second portion sealably mounted in a second bore which extends through the bottom wall of the exhaust passage. The elongated sleeve prevents galvanic corrosion and erosion of the aluminum housing and the stainless steel shaft.
Claims6
A shift shaft assembly for a marine drive system, comprising:
- a housing including a passage defined by a bottom wall having a first bore extending therethrough, and a top wall having a second bore extending therethrough;
- a shift shaft having a first end portion extending into the first bore in the bottom wall of the passage and a second end portion extending into the second bore in the top wall of the passage;
- and
- an elongated, tubular sleeve having an inner surface defining a shift shaft receiving passage for receiving of the shift shaft therethrough, the sleeve extending through the passage and having a first end sealably mounted in the first bore about the first end portion of the shift shaft, and a second end sealably mounted in the second bore about the second end portion of the shift shaft.
1 more element
Dependencies are inferred from the claim text.