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CONTROL VALVE OF A DEVICE FOR CHANGING THE RELATIVE ANGULAR POSITION OF A CAMSHAFT WITH RESPECT TO A CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE

  • US 20120325169A1
  • Filed: 02/08/2011
  • Published: 12/27/2012
  • Est. Priority Date: 03/24/2010
  • Status: Active Grant
First Claim
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1. Control valve of a device for changing a relative angular position of a camshaft with respect to a crankshaft of an internal combustion engine, the control valve comprising:

  • in an area facing the camshaft, a fluid line for feeding fluid under pressure, in an axial middle area, two fluid lines for feeding fluid under pressure to and for discharging fluid under pressure from at least two hydraulic chambers operatively arranged between a drive element and the camshaft, in order to adjust a defined relative rotational position between the drive element and the camshaft, and in an area facing away from the camshaft, a fluid line for discharging fluid to a tank, the fluid line is constructed for discharging the fluid in an hollow cylindrical section of the control valve as at least one recess extending through the hollow cylindrical section to an outside of the section.

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