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Torsional vibration damper

A technology of torsional vibration damper and drive, applied in the direction of rotation vibration suppression, spring/shock absorber, vibration suppression adjustment, etc., can solve the problems that the decoupling characteristics cannot be fully utilized and cannot be eliminated

Inactive Publication Date: 2010-11-03
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this problem is advantageously influenced by the sliding element specified in DE 4128868 A1 between the steel spring and its radially outer abutment, it cannot be eliminated
In such torsional vibration dampers, on the one hand, there are decoupling properties that cannot be fully utilized, and on the other hand, due to the high stiffness of the damping device, there are natural frequencies in the relatively frequently used speed range of the vehicle.

Method used

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  • Torsional vibration damper
  • Torsional vibration damper
  • Torsional vibration damper

Examples

Experimental program
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Embodiment Construction

[0042] Figures 1 to 7 shows a torsional vibration damper 2, as represented by Figure 4 As can be seen most clearly, it is fastened via a connecting element 4 to the drive 1 , which is advantageously formed by the crankshaft 3 of the internal combustion engine. The connecting element 4 engages through the recess 5 of the radial flange 5 , which together with the circumferential ring 42 and the closure cover 44 forms the liquid receiving chamber 18 which surrounds the liquid ejector 20 . Furthermore, the radial flange 5 has a primary disk hub 7 in the radially inner region, which centers and axially positions the liquid ejector 20 on the secondary disk hub 8 of the liquid ejector 20 via a bearing 54 .

[0043] Radially surrounding this liquid receiving chamber 18 is fastened a cylinder receptacle 15 which surrounds the toothed edge 9 and serves to accommodate a hydropneumatic spring system 14 with Cylinder 12 ( Figure 5 ), the cylinder 12 has a circular cylinder chamber 13...

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Abstract

A torsional vibration damper (2) according to the invention has a drive-input-side transmission element (88) which is connected to a drive input (1), a drive-output-side transmission element (92) which can be operatively connected to a drive output (86) and can be rotationally deflected relative to the drive-input-side transmission element (88), and a damping device (31) which is provided betweenthe two transmission elements and has a spring system (14) which serves to transmit a torque between the drive-input-side and the drive-output-side transmission elements and has at least one accumulator space (32) which contains a gaseous medium.; In this torsional vibration damper (2), the respective accumulator space of the spring system is operatively connected to an in each case associated liquid-medium-containing pressure space (27) of a pressure circuit (120), wherein it is at least substantially possible by means of the pressure circuit, at least in the event of a change in the torque which is to be transmitted, for an adaptation of the characteristic curve of the spring system to the changed torque to be initiated by means of a resetting of the pressure acting in the respective pressure space.

Description

technical field [0001] The invention relates to a torsional vibration damper with a drive-end transmission element connected to a driver, a driven-end transmission element capable of being placed in functional connection with a follower, which is rotationally offset relative to said drive-end transmission element, and a A damping device between the drive-end transmission element and the driven-end transmission element with a spring system for torque transmission between the drive-end and the driven-end transmission element and having at least one gaseous medium storage room. Background technique [0002] A torsional vibration damper is known from DE 10 256 191 A1 which has a drive-side transmission element, a driven-end transmission element which rotates relative to this transmission element about substantially the same axis of rotation, and a damping device located between the two transmission elements. The transmission element on the drive side is connected to the drive, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/16
CPCF16F15/162Y10T74/2123
Inventor I·基斯特T·多格尔H·巴克F·埃克霍恩
Owner ZF FRIEDRICHSHAFEN AG
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