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Flanged impeller hub

An impeller and hub technology, applied in the field of torque converters, can solve problems such as slight vibration or oscillation of the torque converter

Active Publication Date: 2012-07-11
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the torque converter may vibrate or wobble slightly during normal operation due to a slight misalignment of the torque converter between the engine and transmission

Method used

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  • Flanged impeller hub
  • Flanged impeller hub
  • Flanged impeller hub

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Embodiment Construction

[0011] First of all, it should be understood that similar reference numerals on different drawings designate identical or functionally similar structural elements of the present invention. While the invention has been described in terms of what is presently considered to be the preferred aspects, it is to be understood that the invention as claimed is not limited to the disclosed aspects.

[0012] Furthermore, it is to be understood that this invention is not limited to the particular methodology, materials and variations described, which, of course, may vary. It is also to be understood that the terminology used herein is for the purpose of describing particular aspects only, and is not intended to limit the scope of the invention, which will be defined only by the appended claims. It is also to be understood that any references, surfaces or features to axial, radial or circumferential directions are made with respect to an axis of rotation, generally denoted axis A, shown in...

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Abstract

The invention relates to an impeller hub, including a tube portion extending along an axis, the tube portion having an inner diameter and an outer diameter, wherein a longitudinal bore forms the inner diameter; and a flange extending radially out from the tube portion, wherein the longitudinal bore through the tube portion and the flange are formed by a cold forming process.

Description

technical field [0001] The present invention relates generally to torque converters, more particularly to impeller hubs for torque converters, and still more particularly to seamless, flanged impeller hubs for torque converters. Background technique [0002] It is known in the art that torque converters typically have an impeller hub for connection to transmission components. One known type of impeller hub is a hub formed by forging. Since the hub has to be created by forging, it is very expensive to produce. See, eg, US Patent Publication No. 2009 / 0155078 (Heeke et al.), which is hereby incorporated by reference in its entirety. As discussed in more detail below, forged hubs are made with very large radial flanges in order to strengthen the connection of the hub to the impeller housing. A second type of impeller hub is the slotted tube hub, which is formed by rolling a long, flat block of steel into a tube and welding it along the seam. However, the hub is not very stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H41/24
CPCF16H41/28
Inventor A·希门尼斯R·法拉哈蒂K·鲁什
Owner SCHAEFFLER TECH AG & CO KG