NOZZLE DRIVE MECHANISM, TURBOCHARGER, AND VARIABLE-CAPACITY TURBOCHARGER
First Claim
1. A nozzle drive mechanism comprising:
- a plurality of nozzle vanes;
a plurality of link plates each provided to a shaft portion of one of the plurality of nozzle vanes;
a nozzle ring having an annular main body portion including shaft holes, each of which pivotally supporting a shaft portion of one of the nozzle vanes, the nozzle ring arranged between the link plates and the nozzle vanes;
a regulation pin having one end side thereof attached to the main body portion of the nozzle ring and the other end thereof protruding from an opposing surface of one of the link plates facing the nozzle ring; and
a positioning pin provided separately from the regulation pin and assembled to a wall portion positioned opposite to the nozzle ring across the link plate at a position where the positioning pin is brought into contact when the nozzle ring rotates.
1 Assignment
0 Petitions
Accused Products
Abstract
A nozzle drive mechanism includes: a plurality of nozzle vanes; a plurality of link plates each fixed to a shaft portion of one of the plurality of nozzle vanes; a nozzle ring having an annular main body portion including shaft holes, each of which pivotally supporting a shaft portion of one of the nozzle vanes, the nozzle ring arranged between the link plates and the nozzle vanes; a regulation pin having one end attached to the main body portion of the nozzle ring and the other end protruding from an opposing surface of one of the link plates facing the nozzle ring; and a positioning pin provided separately from the regulation pin and assembled to a wall portion positioned opposite to the nozzle ring across the link plate at a position where the positioning pin is brought into contact when the nozzle ring rotates.
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Citations
17 Claims
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1. A nozzle drive mechanism comprising:
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a plurality of nozzle vanes; a plurality of link plates each provided to a shaft portion of one of the plurality of nozzle vanes; a nozzle ring having an annular main body portion including shaft holes, each of which pivotally supporting a shaft portion of one of the nozzle vanes, the nozzle ring arranged between the link plates and the nozzle vanes; a regulation pin having one end side thereof attached to the main body portion of the nozzle ring and the other end thereof protruding from an opposing surface of one of the link plates facing the nozzle ring; and a positioning pin provided separately from the regulation pin and assembled to a wall portion positioned opposite to the nozzle ring across the link plate at a position where the positioning pin is brought into contact when the nozzle ring rotates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A variable-capacity turbocharger comprising:
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a nozzle drive mechanism having a plurality of nozzle vanes and a plurality of link plates each fixed to a shaft portion of one of the plurality of nozzle vanes; an annular main body portion including shaft holes, each of which pivotally supporting a shaft portion of one of the nozzle vanes; a nozzle ring arranged between the link plates and the nozzle vanes; a regulation pin having one end fixed to the main body portion of the nozzle ring and the other end protruding from an opposing surface of one of the link plates facing the nozzle ring; a positioning pin provided separately from the regulation pin and assembled to a wall portion, of a housing, positioned opposite to the nozzle ring across the link plate at a position where the positioning pin is brought into contact when the nozzle ring rotates; and a housing hole formed in the wall portion and into which the positioning pin is inserted.
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Specification