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The opening speed of a gas-charged lift support has historically been controlled by the gas and oil that pass through a piston contained within the tube of the gas-charged lift support. Since oil and gas travel at different speeds, gas-charged lift supports have always had to deal with undesirable damping rates. Unfortunately, trying to correct these rates using traditional methods may cause changes in the handle loads required to open and close a vehicle’s hatch or hood.
Now, Stabilus has developed Dynamic Damping to solve these problems. The oil and elaborate piston used to control the opening speed are eliminated, and are replaced with much simpler, yet extremely effective, piston and bypass passage. The passage is a groove in the unit’s tube wall, and varying the depth and width of the groove provides a degree of damping beyond any existing technology.
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AAPEX 2009