Patent ID: 6647770
Filing Date: 2003-11-18
Classification: F16K

Abstract:
An apparatus for testing an engine valve having a head connected to a stem, the apparatus comprising:a housing having a first end and a second end, the first end of the housing having an eccentric bore and an axial passage extending through the second end of the housing and into the eccentric bore; a seat fixture having a first end, a second end and an axial passage extending therebetween, the first end of the seat fixture being supported within the eccentric bore of the housing at the first end of the housing, the axial passage of the seat fixture being wider at the first end of the seat fixture than the second end; a seat insert being adapted to receive the head of the valve, the seat insert being accommodated in the first end of the seat fixture, said stem of the valve extending through the axial passages of the seat fixture and the housing and out the second end of the housing, the valve head being received in the seat insert, said seat fixture being rotatable within the eccentric bore of the housing wherein rotation of the seat fixture within the eccentric bore results in varying an axial offset between the valve and the axial passage of the housing without removing the seat fixture or seat insert; an actuator being adapted to engage the valve applying a force to the valve in a first axial direction from the second end of the housing towards the first end of the housing to lift the valve head off of the seat insert, said actuator also applying force to the valve in a second axial direction from the first end of the housing towards the second end of the housing and pressing the valve head onto the seat insert.