Mechanical system with one-way clutch, alternator and method of manufacturing such a system

A one-way clutch, alternator technology, used in the lubrication of mechanical systems, the field of mechanical systems, can solve problems such as increasing system cost and size

Inactive Publication Date: 2014-03-26
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of sealing members increases the cost and size of the system

Method used

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  • Mechanical system with one-way clutch, alternator and method of manufacturing such a system
  • Mechanical system with one-way clutch, alternator and method of manufacturing such a system
  • Mechanical system with one-way clutch, alternator and method of manufacturing such a system

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Experimental program
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Embodiment Construction

[0031] Figures 1 to 3 A pulley 1 according to the invention is depicted. This pulley 1 is designed to be fitted to a motor vehicle alternator, which is not depicted for the sake of simplicity.

[0032] The pulley 1 is centered on the central axis X1 and comprises an outer rim 10, an inner hub 20, a housing 30 of annular shape radially delimited between the rim 10 and the hub 20, a one-way clutch device 40 and arranged in the housing Two rolling bearings 50 and 60 in 30.

[0033] The rim 10 and the hub 20 are capable of rotational movement relative to each other about the central axis X1. Rim 10 includes an outer groove 11 configured to partially receive a drive belt, while hub 20 includes an inner bore 21 configured to receive an alternator shaft, the drive belt and shaft not being depicted for simplicity. The rim 10 also includes an inner cylindrical bore 12 , while the hub 20 includes an outer cylindrical support surface 22 which together define a housing 30 .

[0034] ...

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Abstract

The present invention relates to a mechanical system (1) with one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element (10) and a second element (20) able to rotate one relative to the other around the central axis (XQ). These elements (10, 20) delimit an annular housing (30) including a one-way clutch device (40) and rolling bearings (50, 60). The one-way clutch device (40) is lubricated by a lubricant (80) of a first type, in that the rolling bearing or bearings (50, 60) are lubricated by at least one lubricant (90) of a second type, and in that the lubricant (80,90) of the first type and the lubricant of the second type are different from and compatible with one another. When the mechanical system is in use, the lubricant (90) of a second type has an NLGI level higher than 1. The invention also relates to an alternator comprising such a system (1) configured as a pulley, and to a method of manufacturing such a mechanical system (1).

Description

technical field [0001] The present invention relates to mechanical systems having one-way clutches, such as motor vehicle alternator pulleys. The invention also relates to an alternator comprising a mechanical system configured as a pulley with a one-way clutch. The invention also relates to a method of manufacturing such a mechanical system. [0002] The field of the invention is the lubrication of mechanical systems, especially alternator pulleys. Background technique [0003] In a known method, the drive belt drives the outer rim of the alternator pulley and drives the inner hub. The pulley is subjected to many variations in speed and torque in use, not least because of the non-periodic operation of the generator. Various means exist for smoothing out these variations in speed and torque applied to the pulley, such as by fitting a one-way clutch (OWC) device, also known as a flywheel, between the hub and the rim. In one direction of rotation, the one-way clutch device...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F16H57/04F16N15/00F16D41/064F16H55/36
CPCF16D41/06F16H57/0401F16D2300/06F16D2041/0601F16H55/36F16C33/6603F16C19/06F16C19/54Y10T29/49464F16C2361/63F16D41/00
InventorE.古琼N.普兰彻诺尔特
OwnerAB SKF