Exhaust-gas turbocharger
AssigneeBorgWarner Inc.
InventorSilvio Koch
Life of this patent
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Abstract
An exhaust-gas turbocharger (1) comprising a compressor (2); a turbine (3); and a bearing housing (4), in which there is arranged a bearing cartridge (5), secured against axial displacement and twisting; and a single fixing element (6) securing the bearing cartridge (5) both against axial displacement and also twisting in the bearing housing (4). Also a method for assembling a bearing cartridge (5) in a bearing housing (4) of an exhaust-gas turbocharger (1).
Claims13
An exhaust-gas turbocharger (1) comprising
- a compressor (2);
- a turbine (3);
- and
- a bearing housing (4),
- a bearing cartridge (5), arranged in the bearing housing (4) and secured against axial displacement and twisting via a single fixing element (6), which secures the bearing cartridge (5) both against axial displacement and also twisting in the bearing housing (4).
A method for assembling a bearing cartridge (5) in a bearing housing (4) of an exhaust-gas turbocharger (1), comprising the following method steps:
- pushing an insertion recess (8) of a fixing element (6) onto the bearing cartridge (5);
- inserting a groove (20) of the bearing cartridge (5) into a holding recess (9) of the fixing element (6), the diameter (D9) of which is smaller than the diameter (D8) of the insertion recess (8), while at the same time inserting a latching lug (10) of the fixing element (6) into a latching recess (11) of the bearing cartridge (5);
- inserting the preassembled unit made up of the bearing cartridge (5) and the fixing element (6) into the bearing housing (4);
- fitting or introducing anti-twist means (14, 15) between the fixing element (6) and the bearing housing (4);
- and
- fastening a bearing housing cover (7) on the bearing housing (4).
Dependencies are inferred from the claim text.