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US 10,865,833 B2Granted
Bearing structure and turbocharger
AssigneeIHI Corporation
InventorsHideyuki Kojima, Shunsuke Nishii
Life of this patent
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Abstract
Provided is a bearing structure including: a shaft; a first opposed surface, which is formed on the shaft or a member mounted to the shaft; a first bearing portion, which is opposed to the first opposed surface from one end side of the shaft; a second opposed surface, which is formed on the shaft or the member mounted to the shaft, and is positioned on the one end side of the shaft with respect to the first opposed surface and the first bearing portion; and a second bearing portion, which is opposed to the second opposed surface from the one end side of the shaft.
Claims9
A bearing structure, comprising:
- a shaft including an impeller;
- a first opposed surface, which is formed on the shaft or a member mounted to the shaft;
- a first bearing portion, which is opposed to the first opposed surface from an impeller side of the shaft;
- a second opposed surface, which is formed on the shaft or another member mounted to the shaft, and is positioned on the impeller side of the shaft with respect to the first opposed surface and the first bearing portion;
- a second bearing portion, which is opposed to the second opposed surface from the impeller side of the shaft;
- a housing including a bearing hole through which the shaft is inserted;
- and
- a seal member arranged between the bearing hole and the impeller,
- wherein the seal member includes:
- an insertion through hole into which the shaft is inserted;
- a bearing wall portion including the second bearing portion formed on an outer side with respect to the insertion through hole in a radial direction of the shaft;
- and
- an oil-holding portion that is recessed from the second bearing portion toward the impeller side of the shaft.
10 more elements
Dependencies are inferred from the claim text.