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Pulley assembly for an electromagnetic power transmitting assembly

A technology of pulleys and components, applied in the direction of electric components, magnetic circuit rotating parts, belts/chains/gears, etc.

Inactive Publication Date: 2008-06-11
MAGNA POWERTRIAN INC (US)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if other pulleys are utilized, this arrangement requires the compressor manufacturer to reconfigure the flux carrier

Method used

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  • Pulley assembly for an electromagnetic power transmitting assembly

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Embodiment Construction

[0019] A pulley assembly 10 of the present invention is generally shown in FIG. 1 . The pulley assembly includes a cup pulley 12 and an annular flux ring 14 .

[0020] Pulley 12 is conventionally manufactured using a roll forming process as described in US Patent No. 4,273,547. The pulley 12 integrally has an inner hub 16 , a web 18 and an outer rim 20 defining a cavity 22 .

[0021] The outer diameter of the pulley 12 is determined by the engine specification and engine manufacturer. The outer diameter of the hub 16 is determined by the supplier of the air conditioner compressor.

[0022] In order for suppliers of air conditioner compressors to minimize the number of parts required for various engines, air conditioner suppliers need a uniform hub size. As the outer diameter of the outer rim 20 of the pulley 12 increases, the pulley cavity 22 increases. A problem that arises in prior art pulley assemblies is that the electromagnetic coil positioned within the cavity does n...

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Abstract

A pulley integrally has a hub, an outer rim, and a flange joining the hub and the outer rim. The flux ring is press fit to the inner surface of the outer rim. The flux coil has an inner diameter sized to closely surround a solenoid coil mounted on the compressor housing. The pulley assembly provides a simple method of providing different sized pulleys for the compressors, enabling different sized engines to utilize a common compressor.

Description

technical field [0001] The present invention relates to a pulley assembly for an electromagnetic power transmission assembly. In particular, the present invention relates to a pulley with a flux carrier, wherein the pulley can be sized to accommodate a variety of different engine configurations while maintaining a configuration for efficient transfer of magnetic forces. Background technique [0002] On vehicle engines, it is common to provide an air conditioner compressor selectively driven by a serpentine accessory drive belt. The compressor can be provided with an electromagnetic coupler that selectively couples the drive to the compressor. The electromagnetic coupler is energized to engage and drive the compressor. [0003] US Patent No. 5,667,050 discloses an example of a conventional electromagnetic power transmission assembly. The assembly of the '050 patent has a pulley structure that rotates about the compressor input shaft on ball bearings. The power transfer as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D27/14B23P15/14B21H1/00B23P19/02F16H55/36H02K49/00F16D13/76
CPCH02K49/043B21H1/04H02K1/22F16D27/112F16D27/14F16D13/76F16H55/36B23P15/14
Inventor 理夏德·奥斯特洛夫斯基
Owner MAGNA POWERTRIAN INC (US)