Hydraulic power steering system with charging valve and air cushion in the tank
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United States of America Patent
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Feb 25, 2014
Grant Date -
Apr 16, 2009
app pub date -
Mar 31, 2006
filing date -
Apr 23, 2005
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Abstract
A hydraulic power steering system which includes a tank and a power steering pump which takes in a pressure medium from an intake area which is decoupled from the prevailing atmospheric pressure on the side of the tank wall and delivers it under pressure to the power steering system. A valve device builds up a pre-pressure in the intake area and prevents a negative pressure and a positive pressure from building up on the interior of the oil tank.
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