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Friction starter drive unit for meshing with a starter ring gear of a heat engine, and corresponding heat engine starter

A technology of drive unit and starter, which is applied in the direction of motor starting for engine, starting of engine, mechanical drive clutch, etc., can solve problems such as wear of spring washer

Inactive Publication Date: 2016-03-23
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, in the event of overrunning of the pinion 2 during the disengagement phase of the clutch, the spring washer 18 has a tendency to rub against one of the rotating elements between which it is located, which also is the reaction plate 8 or the end of the driver 3, which causes premature wear of the spring washer 18

Method used

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  • Friction starter drive unit for meshing with a starter ring gear of a heat engine, and corresponding heat engine starter
  • Friction starter drive unit for meshing with a starter ring gear of a heat engine, and corresponding heat engine starter
  • Friction starter drive unit for meshing with a starter ring gear of a heat engine, and corresponding heat engine starter

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Embodiment Construction

[0053] reference figure 2 with 3 The starter 30 includes a friction starter drive unit 31 equipped with a drive pinion gear 2, which is described in more detail below, and which is installed to be able to translate on the drive shaft 33. The starter drive unit 31 can be figure 2 The docking position in changes to image 3 In the actuated position, in the parked position, the drive pinion 32 is disengaged from the starter ring gear 35 of the heat engine, and in the actuated position, the drive pinion 32 engages the starter ring gear 35, and vice versa.

[0054] To achieve this effect, the starter 30 includes an electric motor 37 including a stator 38 and a rotor 39 assembled in a coaxial manner. The stator 38 surrounds the rotor 39, and the rotor 39 is designed to rotate on a shaft 42 called the X axis of the rotor shaft in the cylinder head 43. The cylinder head is firmly connected to the support 45 of the starter, which is intended to be mounted on a fixed part of a motor vehi...

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Abstract

The invention essentially relates to a friction starter drive unit (31) for a motor vehicle heat engine, comprising: a drive pinion (32) for meshing with a starter ring gear of a heat engine; a drive element (81); and a friction clutch (82) between the drive element (81) and the drive pinion (32), said friction clutch (82) comprising a reaction element (91) rotatably fixed to the drive pinion (32) and a pressure element (92) solidly connected to the drive element. According to the invention, he drive element (81) can move in translation in relation to the reaction element (91) between an uncoupled position and a coupled position, and a resilient means (115) exerts a force on the reaction element (91) and the drive element (81) in the direction of the uncoupled position. The invention also comprises a second washer (118), known as a retaining washer, rotatably fixed to either the reaction plate (91) or the drive element (81). When the retaining washer (118) is rotatably linked to the reaction plate (91), the resilient means (115) is positioned between the reaction plate (91) and the retaining washer (118), and, when the retaining washer (118) is rotatably linked to the drive element (81), the resilient means (115) is positioned between the drive element (81) and the retaining washer (118).

Description

Technical field [0001] The invention relates to a friction starter unit for meshing with a starter ring gear of a heat engine, especially a motor vehicle. The invention is also directed to a starter drive unit of a heat engine including such a unit. [0002] The present invention is particularly advantageous when it is applied to a vehicle equipped with a function of stopping and restarting an engine equipped with a supercharger starter according to traffic conditions (referred to as a "start-stop" function). Background technique [0003] In order to start the heat engine of the vehicle, a known method is to use a medium capable of transmitting mechanical energy through a toothed wheel to rotate the crankshaft of the vehicle. To achieve this effect, the starter includes a pinion mounted on a drive shaft that is rotationally driven by the rotor of the electric motor. The pinion gear is equipped with teeth capable of engaging with a toothed wheel coupled to the crankshaft of the en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N15/02F02N15/06
CPCF02N11/00F02N11/0814F02N15/025F02N15/046F02N15/062F02N15/067F02N2015/061F16D13/69
Inventor G.塞利尔
Owner VALEO EQUIP ELECTRIC MOTEUR