Elastomer strip design for torsional vibration dampers and torsional vibration dampers having same

A technology of torsional dampers and elastomers, applied in the field of torsional dampers, can solve the problems of leakage and failure, unsightly, undesired, etc.

Inactive Publication Date: 2017-09-26
DAYCO IP HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The aforementioned flashing is a by-product of the compression molding operation and is unsightly and undesirable as it can contaminate the hub nose area where it comes in contact with the front engine seal, causing leaks and failure therein

Method used

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  • Elastomer strip design for torsional vibration dampers and torsional vibration dampers having same
  • Elastomer strip design for torsional vibration dampers and torsional vibration dampers having same
  • Elastomer strip design for torsional vibration dampers and torsional vibration dampers having same

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Embodiment Construction

[0039] Reference is now made in detail to the description of the embodiments illustrated in the accompanying drawings. While several embodiments have been described using these figures, there is no intent to limit the present disclosure to the embodiments or embodiments disclosed herein. On the contrary, the intention is to cover all alternatives, modifications and equivalents.

[0040] In Figure 1, Figure 7 and Figure 8 A TVD is generally indicated by the reference numeral 100 in FIG. 1 , and includes a hub 200 defining a generally centrally located bore 201 having an inner cylindrical surface 204 and an outer cylindrical surface 202, the inner cylindrical surface 204 accommodating a motor such as an IC motor. Vibrating shaft of the crankshaft, the outer cylindrical surface 202 receives the front engine seal. Hub 200 also includes an outermost radial surface 203 spaced radially outward from bore 201 by plate 205 . Plate 205 may define one or more holes or open windows 2...

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Abstract

Elastomer members for a torsional vibration damper, methods of making the same, and torsional vibration dampers having the elastomer members are disclosed. The elastomer members have a first major surface and an opposing second major surface with opposing side joining the first major surface to the second major surface, have a median sagittal plane extending parallel to the first major surface and the second major surface, and a transverse plane perpendicular to the median sagittal plane. In a cross-sectional geometry in a plane bisecting the median sagittal plane and the transverse plane, a thickness of the elastomer member changes along the median sagittal plane in a direction parallel to the transverse plane with a first thickness at both opposing sides and a second thickness at the transverse plane, where the second thickness is greater than the first thicknesses.

Description

[0001] related application [0002] This application claims priority to US Provisional Application No. 62 / 104,358, filed January 16, 2015, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to torsional vibration dampers for use in internal combustion powertrains and vehicle drivelines, and more particularly, to a vertical compression molded elastomeric member for use in torsional vibration dampers, elastic The body member has a non-uniform thickness through its axial length with a maximum thickness approximately at its axial center point. Background technique [0004] Torsional Vibration Dampers (TVDs) are used to dampen the torsional vibrations inherent in rotating shafts, including but not limited to crankshafts, drive shafts, support shafts, and half shafts used in automotive and non-automotive applications. [0005] Typically, a TVD consists of three components: (1) a rigid metal support (hub) th...

Claims

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Application Information

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IPC IPC(8): F16C3/04
CPCB29C43/36F16F15/126F16F1/3737B29K2021/006B29C43/027B29C43/021B29C2043/023B29C2043/029F16F15/1442B29C43/003B29L2031/721F16H55/36F16H2055/366B29C43/02F16F1/373B29K2007/00B29K2019/00B29K2009/06B29K2021/003
Inventor S·曼苏尔
Owner DAYCO IP HLDG
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