Motor vehicle heat engine starter with optimised-shape damping pads

A heat engine, motor vehicle technology, applied in the direction of engine starting, engine motor starting, machine/engine, etc., can solve the problems of strong, rapid pad tearing, etc., to shorten the size chain, increase the service life, and reduce noise Effect

Active Publication Date: 2018-12-21
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that the contact of this type of pad with the lugs of the ring gear induces strong localized pressure that causes rapid tearing of the pad during durability tests, especially for stop-and-go type starters, which have to withstand very large amounts of operating cycle

Method used

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  • Motor vehicle heat engine starter with optimised-shape damping pads
  • Motor vehicle heat engine starter with optimised-shape damping pads
  • Motor vehicle heat engine starter with optimised-shape damping pads

Examples

Experimental program
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Effect test

Embodiment Construction

[0043] In the various figures, identical, similar or analogous elements keep the same reference numerals. In the description below, the axial direction will be used from back to front, corresponding to figure 1 in the right-to-left direction. In other words, the front element is located on the side of the drive pinion 15 and the rear element is located on the opposite side, ie on the side of the rear flange 39 .

[0044] refer to figure 1 , The starter 10 according to the present invention includes a drive shaft 11 and a starter 12 mounted on the drive shaft 11 and including a drive pinion 15 . Furthermore, the electric motor 16 includes an inductor stator 17 and a coaxially mounted induction rotor 18 . The stator 17 surrounds a rotor 18 mounted on a shaft 19 of the electric motor 16 . The rotor 18 is rotatable about an axis X inside the yoke 21 . The latter is integral with the metal support 23 of the starter 10 , which is designed to be fixed on a stationary part of the...

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Abstract

The invention relates mainly to a heat engine starter for a motor vehicle, comprising: a planetary-type speed reduction gear mounted between the rotor shaft and the drive shaft; and a base plate (106)having a plastic-material portion comprising abutment portions (120), wherein the ring gear (102) has tabs (121) at its outer periphery and damping pads (122) are mounted between said tabs (121) andsaid abutment portions (120), characterized in that each damping pad (122) has at least one rounded corner (145) on the side of a projecting edge (146) of a corresponding tab (121) of said ring gear (102), which rounded corner is rounded along a radius of curvature located in a plane containing all the corners of said damping pad (122) such that a space is provided between said rounded corner (145) and a right-angled corner defined by the intersection of planes passing through side faces joined by this rounded corner (145).

Description

technical field [0001] The invention relates to a starter for a heat engine of a motor vehicle provided with a damping pad of optimized form. Background technique [0002] In order to start an internal combustion engine, in particular an internal combustion engine of a motor vehicle, it is known to use a rotating electric machine in the form of a starter provided with a starter which can transmit the rotational energy of the starter to the crankshaft of the heat engine via the starter ring gear. [0003] The starter is mounted to be movable in translation on the drive shaft between a rest position in which the teeth of the drive pinion disengage from teeth of a starter ring gear integral with the crankshaft of the heat engine, and an active position in which the The teeth of the drive pinion engage with the teeth of the starter ring gear. The connection between the actuator and the drive shaft is formed by a rib provided in the drive unit, which cooperates with a complement...

Claims

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Application Information

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IPC IPC(8): F02N15/04F02N15/00F02N11/00F02N15/02F02N15/06
CPCF02N11/00F02N15/006F02N15/023F02N15/046F02N15/063F02N15/067F16H3/44F16H55/14F16D3/68F16H1/28
Inventor J.马图斯
Owner VALEO EQUIP ELECTRIC MOTEUR
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