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Tortional damper pulley

A technology of pulleys and hubs, applied in belts/chains/gears, springs/shock absorbers, flywheels, etc., can solve the problems of lack of versatility, high cost, expensive equipment, etc., achieve high versatility, reduce processing hours, The effect of shortening the processing time

Inactive Publication Date: 2005-09-07
FUKOKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, if the internal combustion engine using the damper pulley is different, the casting method must prepare a dedicated mold suitable for its vibration characteristics, which lacks versatility.
In addition, equipment including casting molds is expensive, and there is a problem of high cost from the viewpoint of equipment costs.

Method used

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  • Tortional damper pulley
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Examples

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Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0029] figure 1 It is a sectional view of a main part showing one embodiment of the torsional vibration damping pulley of the present invention. The torsional vibration damping pulley includes: a hub 11 fixed to the rotating shaft of an internal combustion engine, such as a crankshaft (not shown in the figures) of an automobile engine, via a mounting hole 11a with bolts, and a diameter of an annular fixing portion 11b on the outer periphery of the hub 11 The annular pulley main body 10 and the elastic body 13 interposed between the outer peripheral surface of the annular fixing portion 11 b and the inner peripheral surface of the pulley main body 10 are arranged coaxially outward in the direction.

[0030] The pulley main body 10 includes: an annular frame body 12 having a substantially U-shaped cross section having a recess 15 opening on one side in the axi...

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PUM

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Abstract

A torsional damper pulley improved in general versatility, easily produced and capable of reduction in production cost. The torsional damper pulley is constructed of a hub (11) fixed at a revolving shaft of an internal combustion engine, an annular pulley body (10) coaxially placed at an annular fixing portion (11b) at an outer circumference of the hub, and an elastic solid (13) interposed between an outer circumferential surface of an annular fixing portion and an inner circumferential surface of the pulley body. The pulley body (10) is constructed of an annular frame (12) substantially U-shaped in section, having an concave portion (15) open at one side in an axial direction, and an inertia mass element (14) inserted into the concave portion (15) in an axial direction and fixed. The inertia mass element is a laminate made by overlaying annular plates (14a) on each other and bonding them, and the inertia mass element is fixed by being press-fitted into the concave portion.

Description

technical field [0001] The present invention relates to a torsional vibration damping pulley mounted on a rotary shaft of an internal combustion engine such as an automobile engine. Background technique [0002] The drive force of the belt is transmitted from the crankshaft of the internal combustion engine to the pulley of the radiator fan, etc. In order to absorb the torsional vibration of the crankshaft, an elastic body is assembled, and a torsional vibration damper with inertial mass is formed on the pulley body. [0003] Such as Figure 11 As shown, the torsional vibration damping pulley consists of a hub 2 fixed to the crankshaft 1 of the internal combustion engine, a coaxial annular pulley main body 3 arranged in the radial direction of the hub, and an annular fixing portion 2a interposed between the hub 2 The elastic body 4 between the outer peripheral surface of the pulley body and the inner peripheral surface of the pulley main body 3 constitutes. On the outer per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/36F16F15/12F16F15/126F16F15/31F16F15/315
CPCF16H2055/366F16F15/3153F16F15/31F16F15/126
Inventor 渡边英昭大木和己吉田隆矶野正和
Owner FUKOKU CO LTD
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