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Propshaft liner

A technology of transmission shaft and power train, applied in the field of transmission shaft

Inactive Publication Date: 2017-04-05
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, problems arise in embedding the aforementioned damping means and fastening methods

Method used

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Embodiment Construction

[0013] The following description is merely exemplary in nature and is not intended to limit the invention, its application or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features. The term vehicle as used herein is not limited to cars, vans, or sport utility vehicles, but includes any self-propelled or towed vehicle suitable for transporting a load.

[0014] now refer to figure 1 , in an exemplary embodiment, a vehicle 10 is shown having a differential assembly 12 and an axle assembly 14 which in combination are referred to as a drive module 16 . The vehicle 10 may include a powertrain assembly 18 including an engine 20 , such as a gasoline or diesel fueled internal combustion engine. For example, engine 20 may further be a hybrid engine combining an internal combustion engine and an electric drive motor. The engine 20 and drive module 16 are coupled to a frame or other chassis structu...

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Abstract

A propshaft assembly comprises a hollow shaft having a center portion and end portions, an axially extending inner chamber, defined by an inner wall extending between the end portions, and a foam layer applied on the inner wall.

Description

technical field [0001] The subject matter of the present invention relates to the attenuation of noise and vibrations generated by rotating shafts, and more particularly to drive shafts with internal foam linings for noise and vibration reduction. Background technique [0002] Power transmission to rotating devices is usually accomplished through the use of drive shafts; many drive shafts consist of thin, hollow tubes. These propshafts are known to generate undesired sound and vibration, and therefore may require some form of attenuation. In vehicle applications, the vehicle driveline transmits rotational power from the powertrain (eg, engine and transmission) to the drive wheels. Noise from the drive train can be annoying to customers and must be reduced or eliminated. [0003] A common system and method for reducing noise and vibration in a vehicle propshaft is through the use of various damping devices, which are embedded at selected locations within the hollow propshaf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/22F16C3/02
CPCB60K17/22F16C3/02F16F15/10Y10S29/039F16C3/023B60Y2306/09B60Y2300/20F16C2326/06F16F2224/0225
Inventor S·W·克里克D·P·斯查金E·S·迪亚兹
Owner GM GLOBAL TECH OPERATIONS LLC