Browse Prior Art Database

One Way Viscous Damper

IP.com Disclosure Number: IPCOM000090059D
Original Publication Date: 1969-Jan-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Holecek, JJ: AUTHOR

Abstract

The damping device, includes cylinder 10 which is rotatably mounted within housing 11 and with 0 ring seals 12 and 13 defines an annular cavity between them. Shaft 14 projects through an aperture in plate 16 and rotates in unison with cylinder 10. Divider block 15, secured to housing 11, projects into the annular cavity with the terminal surface in bearing contact with cylinder 10. Such provides a continuous longitudinal barrier within the cavity except for the clearance between the longitudinal ends and the 0-rings 12 and 13.

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One Way Viscous Damper

The damping device, includes cylinder 10 which is rotatably mounted within housing 11 and with 0 ring seals 12 and 13 defines an annular cavity between them. Shaft 14 projects through an aperture in plate 16 and rotates in unison with cylinder 10. Divider block 15, secured to housing 11, projects into the annular cavity with the terminal surface in bearing contact with cylinder 10. Such provides a continuous longitudinal barrier within the cavity except for the clearance between the longitudinal ends and the 0-rings 12 and 13.

Leaf spring 17 is secured by bolts 19 to a flatted surface of cylinder 10 with the distal marginal edge surface forced into wiping contact with the interior wall of housing 11. Stop pin 20, carried by cylinder 10, prevents rotation thereof to a position of contact between spring 17 and block 15. A viscous fluid is inserted through an opening, which is closed by screw 21, to fill the annular cavity. Vent opening 22 is provided at the axial end of housing 11 which relieves the air pressure at the housing end during assembly as cylinder 10 is inserted.

As in drawing B, when cylinder 10 is rotated counterclockwise the fluid easily passes between spring 17 and the housing 11 wall. When cylinder 10 is rotated clockwise, spring 17 tends to seal against the housing 11 wall trapping the fluid peripherally between spring 17 and block 15 with passage permitted only between the longitudinal ends of spring 17 and block 15 and O-ri...