Patent ID: 6026840
Filing Date: 2000-02-22
Classification: F16D,Y10T

Abstract:
A hydraulic control system for connecting elements of an engine having a pump for producing an oil stream, a distributing valve for determining the flow path of the oil stream, a throttle as a metering orifice inserted in a flow path and causing a pressure gradient in the oil stream, a regulating valve which is connected by supply and return pipes to the flow path of the first throttle upstream and downstream of the throttle and having a regulating piston which is acted on by the higher oil pressure and displaceable against a spring force, a control groove on the regulating piston, a second throttle as a time orifice inserted in an outlet channel proceeding from the spring chamber in the end region thereof toward the return and a pressure relief output, which proceeds from the spring chamber at a distance in front of the output pipe thereof and which is connected to a return pipe.