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Starter for an internal combustion engine

A technology of starter and internal combustion engine, which is applied in the direction of engine starting, engine motor starting, starting device with mechanical power storage, etc. It can solve the problems of reducing magnetic force, etc., and achieve the effect of reducing friction coefficient and simplifying linear guidance

Active Publication Date: 2018-05-11
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the annular groove is retained and causes the field lines in the plunger to deflect even when the plunger has been retracted inside the coil, thus reducing the available magnetic force

Method used

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  • Starter for an internal combustion engine
  • Starter for an internal combustion engine

Examples

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Embodiment Construction

[0041] according to figure 1 , set the starter 1 for starting the internal combustion engine 2, at figure 1 Only its gear 3 is shown in dotted lines, the starter 1 includes a support 4 , an electric motor 5 and a solenoid driver 6 . The gear 3 is suitably integrated into the drive train of the internal combustion engine 2 (not shown here in detail), so that it is drive-connected to the crankshaft of the internal combustion engine 2, if the internal combustion engine 2 is preferably a piston engine with a crankshaft. The gear 3 may for example be formed on a flywheel of the drive train.

[0042] The support 4 is designed to fix the starter 1 to the internal combustion engine 2 or to the periphery of the internal combustion engine 2 , which may be located, for example, in a vehicle equipped with the internal combustion engine 2 .

[0043] The electric motor 5 is arranged on the support 4 and serves to drive the pinion 7 in rotation. The pinion 7 serves to drive the gearwheel ...

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Abstract

The present invention relates to a starter (1) for an internal combustion engine (2), comprising a support (4), an electric motor (5) which is arranged on the support(4)and which serves for driving apinion (7) in rotation, and a solenoid drive (6) which is arranged on the support (4) and which serves for the axial adjustment of the pinion (7) between active position (AS), which is provided for the drive of a gearwheel (3) of the internal combustion engine (2), and a passive position (PS), which is axially offset with respect to the active position (AS), wherein the solenoid drive (6) has a plunger stop(20) which is static with respect to the support (4), a plunger (21) which is axially adjustable relative to the plunger stop(20), and a cylindrical coil arrangement (22) which is arranged on the plunger stop(20) and which surrounds a cylindrical coil interior (25) of the coil arrangement (22) in a circumferential direction, wherein said coil interior (25) extends axially from a proximalend portion (62) of the coil arrangement (22) to a distal end portion (63) of the coil arrangement (22), wherein the plunger stop(20) has a cylindrical section (27) which projects from the distal endportion (63) axially into the coil interior (25), and wherein the plunger (21) is arranged axially opposite the cylindrical section (27) of the plunger stop(20) and, in the active position (AS)of thepinion (7), protrudes from the proximal end portion (62) axially into the coil interior (25) of the coil arrangement (22). Reduced wear of the pinion (7) and / or the gearwheel (3) can be realized by extending the cylindrical section (27) of the plunger stop (20) into the coil interior (25) such that a face end (33) of the cylindrical section (27) is in the area of the proximal end portion (62).

Description

technical field [0001] The invention relates to a starter for an internal combustion engine, which has the features of the preamble of claim 1 . Background technique [0002] A starter of the described type comprises a support, an electric motor arranged on the support and intended to drive the pinion in rotation, and an electric motor arranged on the support for the pinion in active and passive positions. ), the active position is provided for the drive of the gear of the internal combustion engine, and the passive position is axially offset relative to the active position. A solenoid driver comprising a plunger stop fixed relative to a support, a plunger axially adjustable relative to the plunger stop, and a cylinder arranged on the plunger stop and surrounding the coil arrangement in a circumferential direction A cylindrical coil assembly inside a circular coil. Furthermore, the plunger stopper has a cylindrical portion protruding into the inside of the coil in the axia...

Claims

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Application Information

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IPC IPC(8): F02N11/08F02N15/06H01F7/08H01F7/121H01F7/16H01H51/06
CPCF02N11/0851F02N11/087H01F7/081H01F7/121H01F7/1607H01H51/065F02N2015/061H01F2007/086H01H50/163F02N15/067
Inventor 塔代伊·弗罗里扬契奇塞巴斯扬·科巴尔
Owner MAHLE INT GMBH
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