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Variable pitch stator structure with all blades free to rotate and torque converter

A torque converter and stator technology, applied in the field of torque converters, can solve problems such as high scrap rate and assembly errors

Pending Publication Date: 2020-02-28
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The labor-intensive process required to produce the variable-pitch torque converter described made those early variable-pitch stators unacceptably costly to use in high-volume production, and also because of the greater chance of assembly errors. lead to greater scrap rates

Method used

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  • Variable pitch stator structure with all blades free to rotate and torque converter
  • Variable pitch stator structure with all blades free to rotate and torque converter
  • Variable pitch stator structure with all blades free to rotate and torque converter

Examples

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Embodiment Construction

[0042] The following description is merely exemplary in nature and is not intended to limit the disclosure, its application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0043] refer to figure 1 , schematically illustrates an example of a torque converter 10 constructed in accordance with the teachings of the present disclosure. The torque converter 10 includes an input member 14 , an output member 18 , a pump 22 , a turbine 26 and a stator 30 . In the example provided, the torque converter 10 also includes a one-way clutch 34 , also known as an overrunning clutch. The torque converter is generally disposed about a central axis 38 .

[0044] The input member 14 is supported for rotation about an axis 38 and is configured to receive input torque from a prime mover (not shown; eg, an electric motor or an internal combustion engine). For example, input member 14 may be driv...

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Abstract

The invention provides a variable pitch stator structure with all blades free to rotate and a torque converter. A torque converter stator includes a hub, an outer ring, a plurality of blades, and a plurality of spokes. The hub is disposed about an axis. The blades are disposed radially between the outer ring and the hub. All of the blades are pivotable relative to the hub and outer ring. The spokes are spaced apart from the blades and fixed to the hub and the outer ring to support the outer ring relative to the hub.

Description

technical field [0001] The present disclosure relates to a variable pitch stator structure in which all blades are free to rotate and a torque converter with a variable pitch stator. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Automatic transmission vehicles typically include a torque converter between the engine and the transmission. A typical torque converter includes a pump, a turbine, and a stator, with stator vanes positioned at a fixed pitch within the torque converter. The pitch of the stator vanes is generally selected to optimize performance over all operating speed ranges, such as fuel economy; power; noise, vibration and harshness (NVH). Such optimization across the range will often result in less than optimal performance for any particular speed. [0004] Attempts have been made in the past to produce variable pitch stators, but t...

Claims

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Application Information

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IPC IPC(8): F16H41/24F16H41/28
CPCF16H41/24F16H41/28F16H2041/246F16H2041/285F04D13/022F16H41/26F16H45/02F16H61/56
Inventor 约翰·爱德华·布雷维克基思·A·德弗罗
Owner FORD GLOBAL TECH LLC
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