Bearing system
AssigneeMazda Motor Corporation
InventorsYusuke Nakao, Yoshitomo Takahashi, Yuma Miyauchi
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Abstract
A bearing system is capable of securing load capacity without increasing resistance for a slide bearing using a fluid having a high viscosity and a fluid having a low viscosity. The bearing system includes a slide bearing lubricated by oil and a refrigerant (a CO2 refrigerant) and supporting a rotation shaft; oil passages for supplying the oil to a first region of a sliding surface of the slide bearing; and a refrigerant passage provided away from the oil passages in an axial direction and supplying a refrigerant to a second region different from the first region in the sliding surface, and the slide bearing is formed such that an inner diameter of the second region is smaller than an inner diameter of the first region.
Claims14
A bearing system comprising:
- a slide bearing that is lubricated by a first fluid and a second fluid having a lower viscosity than the first fluid and supports a rotation shaft;
- a first passage for supplying the first fluid to a first region of a sliding surface of the slide bearing;
- and
- a second passage that is provided away from the first passage in an axial direction and supplies the second fluid to a second region that differs from the first region in the sliding surface, wherein
- the slide bearing is formed such that an inner diameter of the second region is smaller than an inner diameter of the first region.
Dependencies are inferred from the claim text.