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Torque converter including inertia ring connected to a turbine by a extruded rivet weldless connection

a technology of inertia ring and turbine, which is applied in the direction of machine/engine, engine components, blade accessories, etc., can solve the problems of not being able to meet the requirements of mass production cost effective design and need additional processing

Active Publication Date: 2019-08-20
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This solution provides a robust and cost-effective method for attaching the inertia ring to the turbine shell, enhancing the structural integrity and manufacturing efficiency of the torque converter while avoiding protrusions into other components.

Problems solved by technology

Inertia rings could potentially be MIG welded to the turbine shell, but MIG welding could produce a weld that protrudes into other components and may need additional processing to machine the weld back.
The inertia ring could also potentially be machined from solid as part of the turbine shell, but MFS is not a mass production cost effective design.

Method used

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  • Torque converter including inertia ring connected to a turbine by a extruded rivet weldless connection
  • Torque converter including inertia ring connected to a turbine by a extruded rivet weldless connection

Examples

Experimental program
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Embodiment Construction

[0008]The disclosure provides an inertia ring connected to a mounting plate with an extruded rivet. The mounting plate is fixed to the turbine shell by tab rolling.

[0009]FIG. 1 shows a partial cross-sectional side view of a torque converter 10 in accordance with an embodiment of the present invention. Torque converter 10 is rotatable about a center axis and includes a front cover for connecting to a crankshaft of an internal combustion engine and a rear cover forming a shell of an impeller. The terms axially, radially and circumferentially as used herein are used with respect to the center axis about which torque converter rotates during operation. Torque converter 10 also includes a turbine 20 including a turbine shell 22 and a core ring supporting a plurality of turbine blades 26 therebetween. Blades 26 may be fixed at an engine side thereof to turbine shell 22 by tabs that include radially outer tabs 23, radially inner tabs 25 and intermediate tabs 24 radially between radially in...

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PUM

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Abstract

A torque converter is provided. The torque converter includes a turbine including a turbine shell and a plurality of turbine blades fixed to the turbine shell by tabs of the turbine blades. The turbine shell includes a rounded blade supporting portion supporting the turbine blades. The torque converter also includes an inertia ring and a connector fixing the inertia ring to the turbine shell. Some of the turbine blade tabs fix the connector to the turbine shell. A method of constructing a torque converter is also provided.

Description

[0001]The present disclosure relates generally to torque converters and more specifically to the connection of an inertia ring to a turbine in a torque converter.BACKGROUND[0002]Inertia rings could potentially be MIG welded to the turbine shell, but MIG welding could produce a weld that protrudes into other components and may need additional processing to machine the weld back. The inertia ring could also potentially be machined from solid as part of the turbine shell, but MFS is not a mass production cost effective design.SUMMARY OF THE INVENTION[0003]A torque converter is provided. The torque converter includes a turbine including a turbine shell and a plurality of turbine blades fixed to the turbine shell by tabs of the turbine blades. The turbine shell includes a rounded blade supporting portion supporting the turbine blades. The torque converter also includes an inertia ring and a connector fixing the inertia ring to the turbine shell. Some of the turbine blade tabs fix the con...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): F01D5/30F16H45/02F16H41/28
CPCF16H45/02F16H41/28F01D5/30F05D2220/30F05D2270/052F16H2045/0221
Inventor HESS, TIMOTHYRAMSEY, JOHN
Owner SCHAEFFLER TECH AG & CO KG