Nozzle device for a turbocharger and associated control method
AssigneeHoneywell International Inc.
InventorsAlain Lombard, Marylene Ruffinoni, Olivier Espasa
Life of this patent
Estimating the term…
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, the outer wall being constituted by an axially displaceable member, wherein the axially displaceable member is displaceable by an action exerted from the side of the inner wall.
Claims32
A variable nozzle device for a turbocharger comprising 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 provided with a surface configured to react against said inner wall to drive the axially displaceable member in axial displacement.
A variable nozzle device for a turbocharger comprising:
- 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 a force reacted against the side of said inner wall;
- wherein said force is exerted by an engagement of said axially displaceable member with an actuator member on said inner wall;
- wherein said axially displaceable member is displaceable by a rotational movement of said actuator member;
- wherein said annular arrangement of vanes is provided on said inner wall;
- and
- wherein said vanes each comprise at least two portions which are movable relative to each other.
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, said method comprising the steps of:
- adjusting the nozzle passages by adjusting the configuration of 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 actuated by said vanes.
A variable nozzle device for a turbocharger comprising 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 said inner wall;
- said action is exerted by an engagement of said axially displaceable member with an actuator member on said inner wall;
- said axially displaceable member is displaceable by a rotational movement of said actuator member;
- said annular arrangement of vanes is provided on said inner wall;
- and
- said vanes each comprise at least two portions which are movable relative to each other.
A variable nozzle device for a turbocharger, comprising an annular arrangement of vanes, each vane comprising at least two portions movable relative to each other in a circumferential direction, wherein:
- one of said at least two portions forms an adjustable extension of said vane in the circumferential direction of said annular arrangement;
- said at least two portions comprise a fixed vane member and a movable vane member;
- said fixed vane member and said movable vane member protrude from a fixed vane plate and a movable vane plate, respectively, said plates being rotatable relative to each other;
- an opening amount of said nozzle device is gradually adjustable by rotating said movable vane plate relative to said fixed vane plate;
- said movable vane plate is rotatable by an actuator mechanism;
- and
- said movable vane member is urged toward a closing direction of said nozzle device relative to said fixed vane member by a spring member.
Dependencies are inferred from the claim text.