Gm Global Technolgoy Operations, Inc.

Edward Charles Ekert

James M Pees

Jamshid Kargar Moradmand

Mark F Lamps

A monotube damper valve is provided which is capable of operating with a higher degree of preloading and a greater extent of disc deflection due to the provision of compression and extension stop surfaces which uniformly support the disc in its naturally deflected state at both limits of deflection travel.

Monotube damper valve

A valve for a hydraulic damper comprising a flat circular disc(s) with a central axial opening wherein the disc(s) has a spring characteristic tending to maintain the disc in a flat shape and tending to return the disc(s) to the flat shape when forces deflect the disc(s) from the flat shape, and a disc retainer having a predetermined axial length, a circular cylindrical shape, a central axial opening, axially coextensive with said axial length, a perimeter wall around an outer perimeter of the retainer, an axial wall around a perimeter of the axial opening wherein the perimeter wall has a first diameter, an annular portion inside of the perimeter wall characterized by a shape having a continuously varying curvature arcuately rotated completely around the retainer axis, wherein during a high velocity event, the disc(s) deflects against the retainer and a load between the disc(s) and the disc retainer is spread along the disc(s) surface wherein excessive localized straining of the disc(s) is prevented and wherein maximum magnitude loads are transferred to the retainer.

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Dayton, OH, United States of America

Edward Charles Ekert