Bearing device and turbocharger including the same
AssigneeMitsubishi Heavy Industries Engine & Turbocharger, Ltd.
InventorYuya KOJIMA
Life of this patent
Estimating the term…
Abstract
A bearing device includes a rotary part which is configured to be rotatable about a rotational axis and has a rotary surface intersecting the rotational axis, and a stationary part which has a stationary surface facing the rotary surface. One of the rotary surface or the stationary surface includes a bearing surface part for forming a bearing oil film. The rotary surface includes a first inner circumferential region, and a first outer circumferential region facing the stationary surface on a radially outer side of the bearing surface part and having higher oleophobicity than the first inner circumferential region.
Claims11
A bearing device, comprising:
- a rotary part which is configured to be rotatable about a rotational axis and has a rotary surface intersecting the rotational axis;
- and
- a stationary part which has a stationary surface facing the rotary surface,
- wherein one of the rotary surface or the stationary surface includes a bearing surface part for forming a bearing oil film, and
- wherein the rotary surface includes:
- a first inner circumferential region;
- and
- a first outer circumferential region facing the stationary surface on a radially outer side of the bearing surface part and having higher oleophobicity than the first inner circumferential region.
Dependencies are inferred from the claim text.