Patent ID: 9297194
Filing Date: 2016-03-29
CPC Classification: E05F,E05Y,F16K

Claim Text:
1. A hydraulic 3/2-solenoid control valve, comprising: a valve housing; a valve chamber integrated into the valve housing, the valve chamber including a first valve seat bore configured as a connection to a first line, a second valve seat bore as a connection to a second line, and a free aperture to a third line, a solenoid; and a valve spindle configured to be moved by the solenoid and at least partially arranged in the valve chamber, the valve spindle comprises, wherein the valve spindle protrudes from the valve chamber through the second valve seat bore toward the solenoid, wherein, when the second valve seat bore is closed, the valve spindle is pulled into the second valve seat bore by a differential-area-ratio through a pressure in the second line, and wherein a sealing diameter of the valve spindle outside the valve chamber is larger than a diameter of the second valve seat bore, such that the differential-area-ratio is generated, and wherein the sealing diameter is defined at a seal between the valve spindle and the solenoid.