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US 11,739,659 B2Granted
Supercharging device
AssigneeBorgWarner Inc.
InventorSebastian Dauscher
Life of this patent
Estimating the term…
Abstract
A supercharging device having a housing, at least one impeller, and at least one axial bearing having first and second bearing surfaces. The impeller here forms one of the bearing surfaces of the axial bearing.
Claims15
A supercharging device (10) comprising:
- a housing (200) having an axial bearing surface;
- and
- at least one impeller (100) having a rear wall (120) having an axial bearing surface;
- wherein the impeller (100) rear wall (120) axial bearing surface opposes the housing (200) axial bearing surface and together with the housing (200) axial bearing surface forms an axial bearing (300),
- wherein the impeller (100) rear wall (120) axial bearing surface has a coating, and
- wherein the coating comprises at least one of DLC (diamond-like carbon), titanium nitride, chromium nitride and chromium carbon nitride.
3 more elements
A fuel cell (3) comprising a supercharging device (10) comprising:
- a housing (200) having an axial bearing surface;
- and
- at least one impeller (100) having a rear wall (120) having an axial bearing surface;
- wherein the impeller (100) rear wall (120) axial bearing surface opposes the housing (200) axial bearing surface and together with the housing (200) axial bearing surface forms an axial bearing (300),
- wherein the impeller (100) rear wall (120) axial bearing surface has a coating, and
- wherein the coating comprises at least one of DLC (diamond-like carbon), titanium nitride, chromium nitride and chromium carbon nitride.
3 more elements
Dependencies are inferred from the claim text.