Electro ceramic coated aluminum transmission components

A technology of electronic ceramics and components, which can be used in brake components, components with teeth, gear transmission mechanisms, etc., and can solve problems such as unacceptable service life

Active Publication Date: 2017-01-04
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this material has been found to be unsuitable because surfaces exposed to frictional forces during clutch and brake engagement, as well as surfaces exposed to sliding forces such as seals and valve surfaces, exhibit unacceptable wear and thus unacceptable wear. Accepted service life

Method used

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  • Electro ceramic coated aluminum transmission components
  • Electro ceramic coated aluminum transmission components
  • Electro ceramic coated aluminum transmission components

Examples

Experimental program
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Effect test

Embodiment Construction

[0036] The following description is merely exemplary in nature and is not intended to limit the disclosure, application, or uses.

[0037] see figure 1 , shows a portion of a motor vehicle automatic transmission and is generally indicated by reference numeral 10 . The automatic transmission 10 includes a housing 12 that mounts, supports, positions and protects components such as shafts and quills 14, a plurality of planetary gear assemblies 16 (one of which is in figure 1 shown in ), fluid passage 18 and a plurality of friction clutch pack assemblies 20.

[0038] Now refer to figure 1 with figure 2 , the friction clutch pack assembly 20 includes an effect plate 22 having outer splines 24 disposed on its periphery that engage a plurality of inner splines 58 in an outer housing 60 to follow it rotate. The action plate 22 is actuated and axially translated by means of a linkage or member 28 driven by a hydraulic operator or brake 30 . The friction clutch pack assembly 20 a...

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Abstract

The present invention is directed to apply plates, clutch plates, reaction plates and backing plates utilized of friction clutch packs, brake housings, clutch hubs, clutch housings, accumulators, spline sets, valve bodies and wear surfaces against which bushings, seals, springs and similar components slide and contact which are utilized in motor vehicle automatic transmissions, are fabricated of aluminum and include an electro ceramic coating deposited thereon. Such components exhibit reduced weight relative to similar components fabricated of steel as well as extended service life due to both the hardness and porosity of the ceramic coating.

Description

technical field [0001] The present disclosure relates to coated electronic ceramic aluminum components, and more particularly, to coated electronic components such as clutch hubs, clutch and brake housings, plates, and similar components utilized in motor vehicle powertrains, particularly transmissions. Ceramic aluminum parts. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may or may not constitute prior art. [0003] Many motor vehicle powertrain components have been and are made of steel because of its strength, forgeability, cost, and availability. However, that's not to say that all of its engineering attributes are positive or desirable. One of the most commonly recognized disadvantages of steel is its weight, especially when compared to materials such as aluminum and magnesium. [0004] A conventional motor vehicle automatic transmission may include one or more friction clutch ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D13/64F16D65/06F16D65/10F16D69/00
CPCF16D13/648F16D65/065F16D65/10F16D69/00F16D2200/0043F16D2069/003C25D7/00C25D9/06F16D13/683F16D13/76F16D25/0638F16H57/02F16H57/032F16H2057/02017F16H2057/02047C25D9/12F16D49/02
Inventor S·W·海因茨恩锐特D·R·怀特C·E·马林
Owner GM GLOBAL TECH OPERATIONS LLC
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