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variable capacity supercharger

A supercharger and variable technology, applied in the direction of machines/engines, engine manufacturing, combustion engines, etc., to achieve the effect of simplifying the structure and improving the ease of manufacture

Active Publication Date: 2019-07-26
IHI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned variable capacity supercharger, the drive ring is supported using a relatively complicated set of parts in such a manner that a plurality of roller pins and a plurality of rollers are provided on the nozzle holder.

Method used

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Embodiment Construction

[0013] A variable capacity supercharger turbine according to one aspect of the present invention includes a turbine and a compressor, and the turbine has: a turbine wheel; a turbine housing forming a scroll flow path arranged around the turbine wheel; The variable nozzle unit includes a plurality of movable nozzle vanes arranged around the turbine impeller in the gas inflow path from the scroll flow path to the turbine impeller, and the compressor has a compressor impeller. The impeller is connected to the turbine impeller via a rotation shaft and rotates around the same rotation axis as the turbine impeller. The variable nozzle unit has a unit main body that is fixed to the turbine housing and supports a plurality of nozzle vanes as shafts. rotatable; a drive ring that rotates around a rotation axis relative to the unit main body and transmits driving force to a plurality of nozzle vanes; and a ring support member that is fixed to the unit main body and supports the drive ring...

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Abstract

The variable capacity type supercharger of the present invention includes a compressor and a turbine having a variable nozzle unit. The variable nozzle unit has a unit main body that is fixed to a turbine housing and includes a plurality of nozzle vanes. The shaft is supported rotatably; the drive ring transmits the driving force for the plurality of nozzle vanes; and the drive ring support member is fixed to the unit main body and supports the drive ring rotatably. , the drive ring support member is formed of a single member, having: a base end side portion that restricts the radial movement of the drive ring; a top end side portion that compresses the drive ring in the radial direction; movement of the machine side is restricted; and a turbine side receiving portion restricts movement of the drive ring to the turbine side along the rotation axis direction.

Description

technical field [0001] The present invention relates to a variable capacity supercharger. Background technique [0002] Conventionally, a variable capacity supercharger described in Patent Document 1 below has been known as a technique in this field. This variable capacity supercharger includes a nozzle driving mechanism for driving a nozzle of a turbine. In the nozzle driving mechanism, a plurality of roller pins are arranged in a circumferential direction, and the plurality of roller pins are fixed to a nozzle holder. Rotatable rollers are respectively attached to the roller pins, and each roller is in contact with the inner peripheral edge of a drive ring. The driving ring is a member for transmitting the driving force to the nozzle, and is supported by the above-mentioned plurality of rollers. [0003] Patent Document 1: Japanese PCT Publication No. 2006-514191. [0004] However, in the above-mentioned variable capacity supercharger, the drive ring is supported using ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/24F01D17/16
CPCF01D17/165F02B37/24F05D2220/40F05D2250/90F05D2260/50Y02T10/12F01D17/16F02C6/12F05D2240/128
Inventor 浅川贵男濑川健一小林高广崎坂亮太竹内和子文野谦治
Owner IHI CORP
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