Rotary shafts – gudgeons – housings – and flexible couplings for ro – Shafting – Particular vibration dampening or balancing structure
Patent
1997-09-12
1999-05-18
Lillis, Eileen Dunn
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Shafting
Particular vibration dampening or balancing structure
464903, F16C3/00
Patent
active
059046228
ABSTRACT:
A noise reduction structure for a vehicle driveshaft assembly insures that each of the interior chambers of the driveshaft tube is properly vented during use. The noise reduction structure is a solid member having a predetermined length and a cross sectional shape which corresponds generally to the cross sectional shape of the driveshaft tube. Preferably, the noise reduction structure has an outer diameter which is approximately equal to, or slightly larger than, the inner diameter of the driveshaft tube. As such, the noise reduction structure engages the inner surface of the driveshaft tube in a light press fit relationship. Each noise reduction structure has a passageway, groove, or other opening formed therein which extends axially throughout its length. In a preferred embodiment, an axially-extending groove is formed on the outer circumferential surface of the noise reduction structure. The groove provides for free air flow from one end of the noise reduction structure to the other, thereby insuring that each of the interior chambers of the driveshaft tube is properly vented during use.
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Dana Drawing No. 2-3-12811X dated Nov. 1994.
Breese Douglas E.
Stevens Kellie L.
Dana Corporation
Lillis Eileen Dunn
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