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Non-collision structure of engine starter

A technology for engines and starters, which is applied in the direction of engine motor starting, engine starting, engine components, etc., which can solve problems such as restarting, reducing the service life of centrifugal clutches, instability, etc., and achieve the effect of small wear

Inactive Publication Date: 2005-02-02
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the centrifugal clutch has the disadvantage that the engine 100 needs to be restarted when the centrifugal clutch is disengaged and the engine 100 stops or rotates in the reverse direction after the engine 100 once stopped.
This can cause instability and reduce the life of the centrifugal clutch during restarting the engine 100

Method used

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  • Non-collision structure of engine starter
  • Non-collision structure of engine starter
  • Non-collision structure of engine starter

Examples

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Embodiment Construction

[0027] Referring to the drawings, like reference numerals denote like parts throughout the several views, in particular figure 1 An engine starter 1 as an example of a first embodiment of the present invention, which will be described below, is shown, which is commonly used to start an internal combustion engine of a motor vehicle.

[0028] Engine starter 1 mainly comprises electric motor 2 (also refers to starter motor below), speed reducer 3, output shaft 4, the centrifugal clutch 5 that is connected with output shaft 4 and starter pulley 6. The speed reducer 3 is used to reduce the speed of the starter motor 2 . The output shaft 4 transmits the torque output by the reducer to the starter pulley 6 through the centrifugal clutch 5 . The starter pulley 6 is connected with the crankshaft pulley 9 through a belt 10 . The crank pulley 9 is connected to the crankshaft 8 of the engine 7 .

[0029] The starter motor 2 is implemented by energizing an armature installed in a known ...

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PUM

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Abstract

The invention provides an engine starter with a centrifugal clutch, wherein, the clutch comprises an internal part rotated under the drive of the engine motor torque, an external part always connected with a crank shaft of the engine, and a roller arranged next to the clutch. The engine starter is characterized in that the speed of the external part of the clutch that the roller is pushed far away from the internal part of the clutch with the centrifugal force and an oil-film is produced between the roller and the internal part of the clutch is higher than the speed of the internal and the external part of the clutch when the engine motor is rotated in no-load condition, therefore, when the engine is shut down and the starter motor is restarted, the direct contact between the roller and the clutch or the indirect contact with the help of the oil film can be realized; thus the service life of the centrifugal clutch and the reliability of the engine starter improved.

Description

technical field [0001] The present invention relates generally to an improved construction of an engine starter equipped with a centrifugal clutch for transmitting torque from a starter motor to an internal combustion engine of a motor vehicle, and more precisely to such a Engine starter with minimized unwanted mechanical impact on centrifugal clutch. Background technique [0002] FIG. 5 shows a typical example of an engine starter 150 equipped with a starter pulley 130 always connected with a crankshaft pulley 110 of the engine 100 through a belt 120 . The starter pulley 130 has a centrifugal clutch incorporated therein. [0003] As shown in FIG. 6 , the centrifugal clutch is composed of an outer portion 140 , an inner portion 160 and rollers 170 interposed between the outer portion 140 and the inner portion 160 . The outer portion 140 is integrally formed with the starter pulley 130 . The interior 160 is driven by a starter motor 150 . When the inner 160 is rotated by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D17/00F02D29/02F02N15/00F02N15/02F02N15/08F16D43/14F16D43/24
CPCF16D43/24F02N15/026
Inventor 春野贵誉一斋藤干男
Owner DENSO CORP
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