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US 5,203,854 AGranted
Main bearing cap for internal combustion engines
AssigneeAB Volvo
InventorsLars Nilsson, Kjell Berntson
Life of this patent
Estimating the term…
Abstract
A main bearing cap for an internal combustion engine consists of an aluminum alloy with a steel core (6). The cap has a supporting surface (2) for the bearing shell (3). The supporting surface is the outer surface of a 3 mm thick aluminum layer (10) outside the steel core.
Claims4
In an engine comprising an engine block formed of an aluminum alloy, an a bearing cap attached to said engine block;
- said engine block including a first semi-circular surface;
- said bearing cap including a second semi-circular surface;
- said first and second semi-circular surfaces together forming a circular supporting surface for supporting a bearing shell;
- said bearing cap comprising a body formed of an aluminum alloy, and a core formed of an iron alloy disposed within said body;
- said core including holes for receiving bolts to attach said bearing cap to said engine block;
- a portion of said body and a portion of said core being situated in a region disposed between said holes;
- said portion of said body forming said second semi-circular supporting surface, whereby each of said first and second semi-circular supporting surfaces is formed of an aluminum alloy.
4 more elements
Dependencies are inferred from the claim text.