Nozzle device for a turbocharger and associated control method
AssigneeHoneywell International Inc.
InventorsAlain Lombard, Marylene Ruffinoni, Olivier Espasa
Life of this patent
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Abstract
A variable nozzle device for a turbocharger comprises an annular arrangement of vanes disposed in a nozzle formed between an inner wall and an outer wall, said outer wall being constituted by an axially displaceable member, wherein said axially displaceable member is displaceable by an action exerted from the side of the inner wall.
Claims22
A variable nozzle device for a turbocharger comprising an annular arrangement of vanes (4) disposed in a nozzle formed between an inner wall (6, 7) and an outer wall, said outer wall being constituted by an axially displaceable member (5), wherein said axially displaceable member (5) is displaceable by an action exerted from the side of said inner wall.
A variable nozzle device for a turbocharger, comprising an annular arrangement of vanes (4), each vane comprising at least two portions (4a, 4b) movable relative to each other in a circumferential direction.
A method for controlling a variable nozzle device of a turbocharger comprising a plurality of vanes arranged in a nozzle defined between an inner wall and an outer wall, said vanes forming nozzle passages (3), said method comprising the steps of:
- adjusting the nozzle passages by adjusting said vanes, and
- adjusting the nozzle by varying the interval between said inner wall and said outer wall,
- wherein the adjusting of said nozzle is achieved in response to the adjusting of said nozzle passages (3), and vice versa.
A method according to claim 20 or 21, wherein said interval between said inner wall and said outer wall is varied by the adjusting of said nozzle passages when said nozzle passages are in a predetermined opening range.
Dependencies are inferred from the claim text.