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Freewheel and starting device for an internal combustion engine comprising same

A technology for starting devices and internal combustion engines, applied in mechanical equipment, one-way clutches, clutches, etc., can solve the problems of wear and tear, intolerable continuous noise load, etc., and achieve the effect of cheap manufacturing and small tolerance sensitivity

Inactive Publication Date: 2013-08-07
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage is the permanent radial pretensioning of the pawl relative to the inner part, which leads to an intolerable continuous noise load especially in the starting device and to wear during operation of the internal combustion engine

Method used

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  • Freewheel and starting device for an internal combustion engine comprising same
  • Freewheel and starting device for an internal combustion engine comprising same
  • Freewheel and starting device for an internal combustion engine comprising same

Examples

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Embodiment Construction

[0020] Figure 1 to Figure 4 respectively with the view ( figure 1 and image 3 ) and profile ( figure 2 and Figure 4 ) is shown in the lockout mode ( figure 1 and figure 2 ) and in override mode ( image 3 and Figure 4 ) starting device 1 with freewheel 2 .

[0021] The starter device 1 comprises an outer ring 3 , which is directly connected, for example via a toothing, to the crankshaft or flywheel of the internal combustion engine, or is operatively connected to the crankshaft indirectly, for example via an auxiliary unit such as a generator. Corresponding mechanical connection facilities on the outer ring 3 are not shown.

[0022] Arranged radially within the outer ring 3 is an inner part 4 which is rotationally driven by an external force such as an electric motor or a kick starter when an internal combustion engine preferably arranged in a two-wheeled vehicle is started. Two friction disks 5, 6 are placed on both sides of the inner part 4 and are fixedly co...

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PUM

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Abstract

The invention relates to a freewheel (2) and to a starting device (1) for an internal combustion engine, having an inner part (4) driven in rotation about a rotational axis by means of an external force, an outer ring (3) operatively connected to a crankshaft of the internal combustion engine and, disposed between the inner part (4) and the outer ring (3), circumferentially distributed blocking members (8) forming a freewheel (2). In order to be able to transfer greater torques by means of an inexpensive freewheel under the given installation space conditions, or to be able to provide smaller installation spaces for the same transferrable torque, the blocking members (8) are arranged in such a manner that they are displaceable radially with respect to the outer ring (3) and to a limited extent circumferentially, in the blocked state of the freewheel (2) a positive engagement is formed between outer ring (3) and inner part (4) by means of the blocking members (8), and in the unblocked state of the freewheel (2) the blocking members (8) are displaced by means of a displacement force acting between the inner part (4) and the blocking members (8) into a rest position (A) with radial clearance (14) relative to the inner part (4).

Description

technical field [0001] The present invention relates to a free wheel and a starting device for an internal combustion engine. The starting device has an inner ring driven to rotate around a rotation axis by external force, an outer ring effectively connected to the crankshaft of the internal combustion engine, and a free wheel formed between the inner ring and the outer ring, Locking elements distributed on the perimeter. Background technique [0002] A generic freewheel (so-called clamping body freewheel) with an outer ring and an inner part (shaft or inner ring) and a locking element arranged between them in the form of a clamping body has been known for a long time . DE 2008 071 681 A1 shows, for example, a freewheel in the form of a freewheel clutch, wherein the locking element configured as a clamping roller is clamped by contact on the contact ramp when the outer ring and the shaft are rotated relative to each other in the first rotational direction, And in turn a to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D41/06
CPCF16D41/064F16D2041/0646
Inventor 马蒂亚斯·施佩伯
Owner SCHAEFFLER TECH AG & CO KG
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