CRANKSHAFT BEARING SUPPORT STRUCTURE
First Claim
1. A crankshaft bearing support structure, comprising:
- a cylinder block having a first holding portion;
a first plain bearing held by the first holding portion of the cylinder block;
a crank cap fastened to the cylinder block, the crank cap having a second holding portion;
a second plain bearing held by the second holding portion of the crank cap; and
a crankshaft having an axis of rotation, the crankshaft being rotatably held by the first plain bearing and the second plain bearing and configured to receive an explosive load from a piston via a connecting rod,wherein the crankshaft flexes, when subjected to the explosive load, in a direction of the explosive load, andwherein the crank cap in provided with a mechanism which causes the second holding portion to flex in a manner that a bearing holding surface of the second holding portion follows flexure of the crankshaft subjected to the explosive load.
1 Assignment
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Accused Products
Abstract
A crankshaft bearing support structure includes a cylinder block having a first holding portion; a first plain bearing held by the first holding portion of the cylinder block; a crank cap fastened to the cylinder block, the crank cap having a second holding portion; a second plain bearing held by the second holding portion of the crank cap; and a crankshaft having an axis of rotation, the crankshaft being rotatably held by the first plain bearing and the second plain bearing and configured to receive an explosive load from a piston via a connecting rod. The crankshaft flexes, when subjected to the explosive load, in a direction of the explosive load. The crank cap in provided with a mechanism which causes the second holding portion to flex in a manner that a bearing holding surface of the second holding portion follows flexure of the crankshaft subjected to the explosive load.
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Citations
5 Claims
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1. A crankshaft bearing support structure, comprising:
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a cylinder block having a first holding portion; a first plain bearing held by the first holding portion of the cylinder block; a crank cap fastened to the cylinder block, the crank cap having a second holding portion; a second plain bearing held by the second holding portion of the crank cap; and a crankshaft having an axis of rotation, the crankshaft being rotatably held by the first plain bearing and the second plain bearing and configured to receive an explosive load from a piston via a connecting rod, wherein the crankshaft flexes, when subjected to the explosive load, in a direction of the explosive load, and wherein the crank cap in provided with a mechanism which causes the second holding portion to flex in a manner that a bearing holding surface of the second holding portion follows flexure of the crankshaft subjected to the explosive load. - View Dependent Claims (2, 3, 4, 5)
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Specification