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US 6,543,334 B2Granted
Cylinder block and method of making the same
AssigneeSuzuki Motor Corporation
InventorToshio Yamauchi
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AssigneeSuzuki Motor Corporation
InventorToshio Yamauchi
Estimating the term…
The present invention provides a cylinder block which can reduce the vibrations and noises produced from the engine at high temperatures and has a light weight, as well as a method of making such a cylinder block. Specifically, the cylinder block of the present invention comprises a main body (5, 21) of the cylinder block, a bearing (11, 17) attached to the underside of the main body (5, 21), and a crankshaft supported rotatably in a bearing section (13, 25) formed by the underside of the main body (5, 21) and the bearing (11, 17). In this cylinder block, an aluminum alloy layer (33) is formed in the sliding portion of the bearing section (13, 25), the region adjacent to the aluminum alloy layer (33) consists of a composite material (35), and the coefficient of thermal expansion of the composite material (35) is lower than that of the aluminum alloy layer (33) formed in the sliding portion.
A cylinder block comprising a main body of the cylinder block, a bearing attached to the underside of said main body, and a bearing section for rotatably supporting a crankshaft formed by the underside of said main body and said bearing, wherein said bearing section comprises a composite material having an aluminum alloy layer formed on an outer portion thereof to form a sliding portion of said bearing section on which a crankshaft rotates, and wherein the coefficient of thermal expansion of said composite material is lower than that of said aluminum alloy layer.
Dependencies are inferred from the claim text.