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Variable-vane assembly having fixed axial-radial guides and fixed radial-only guides for unison ring

一种协调环、叶片的技术，应用在发动机元件、发动机制造、机器/发动机等方向，能够解决可变-叶片组件组装复杂、分离、易掉落喷嘴环等问题

Active Publication Date: 2009-09-23
GARRETT MOTION TECH (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to their nature, such guide rollers complicate the assembly of the variable-vane assembly, usually because they fit loosely into the openings in the nozzle ring, they tend to fall out or separate from the nozzle ring

Method used

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  • Variable-vane assembly having fixed axial-radial guides and fixed radial-only guides for unison ring
  • Variable-vane assembly having fixed axial-radial guides and fixed radial-only guides for unison ring
  • Variable-vane assembly having fixed axial-radial guides and fixed radial-only guides for unison ring

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Embodiment Construction

[0027] The present invention will now be described more fully with reference to the accompanying drawings in which some, but not all embodiments of the invention are shown. Indeed, the invention may be embodied in different forms and are not to be construed as limited to the embodiments set forth herein; rather, these embodiments serve to enable this disclosure to satisfy applicable legal requirements. Like numbers generally refer to like elements.

[0028] figure 1 An exploded view of a nozzle ring 20 with a plurality of radial-axial guide pins 22 is shown. The nozzle ring has a plurality of first circumferentially spaced openings 24 extending into a first face of the nozzle ring for receiving radial-axial guide pins. More particularly, each radial-axial guide pin has a relatively small diameter generally cylindrical pin portion sized to fit into a corresponding first opening 24 in an interference fit manner, and has a The large diameter guide portion abuts the first face ...

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PUM

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Abstract

A variable-vane assembly for a variable nozzle turbine comprises a nozzle ring (20) supporting a plurality of vanes (40) affixed to vane arms (44) that are engaged in recesses in the inner edge of a unison ring (30). The unison ring (30) is rotatable about the axis of the nozzle ring (20) so as to pivot the vane arms (44), thereby pivoting the vanes (40) in unison. A plurality of radial-axial guide pins (22) for the unison ring (30) are inserted into apertures (24) in the nozzle ring and are rigidly affixed therein such that the radial-axial guide pins (22) are non-rotatably secured to the nozzle ring (20) with a guide portion of each radial-axial guide pin projecting axially from the face of the nozzle ring (20). Each guide portion defines a groove (26) for receiving the inner edge of the unison ring (30) such that the unison ring (30) is restrained by the radial-axial guide (22) pins against excessive movement in both radial and axial directions.

Description

technical field [0001] The present invention relates to a turbocharger having a variable nozzle turbine, wherein an array of movable vanes is arranged within the nozzle of the turbine for regulating the flow of exhaust gases into the turbine. Background technique [0002] A turbocharger, powered by exhaust gases, is a device used in conjunction with an internal combustion engine to increase the engine's power output by compressing the air delivered to the engine's air intake to be mixed with fuel and combusted within the engine. A turbocharger includes a compressor wheel mounted on one end of the shaft within the compressor housing and a turbine wheel mounted on the other end of the shaft within the turbine housing. Typically, the turbine housing is formed separately from the compressor housing and has another central housing connected between the turbine and compressor housings to accommodate the bearings of the shaft. The turbine housing defines a generally annular chambe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D17/16
CPCF05B2230/604F05B2250/411F05D2250/411F01D17/165F05D2220/40F05B2220/40F05D2230/64Y10T29/4932
Inventor P·巴泰勒特O·埃斯帕萨E·布谢F·埃布尔
Owner GARRETT MOTION TECH (SHANGHAI) CO LTD