Federal-mogul Burscheid Gmbh

Jens Picard

Markus Kellner

Sebastian Bresinski

Marc Stephan Klopp

Ulrich Lenhoff

Frank Horn

A method and an apparatus for measuring the light gap tightness of a piston ring, that is provided with a joint and produced so as to be non-round by clamping the open piston ring, while substantially closing the joint, by way of an accessory device in the circumferential direction, and by exerting a defined force in the region of at least one of the joint ends of the piston ring in the direction of a wall of the accessory device, wherein optical means are used to establish whether the joint region of the piston ring which is subjected to the action of the force is seated against the wall of the accessory device in a light-tight manner.

Method and device for measuring the light gap tightness of piston rings

A device for measuring edge and rounding features on a piston ring includes a planar support element for the piston ring, a stop operatively connected thereto for bearing defined piston ring sections thereon, and a measuring unit, which is disposed at a predefinable angle with respect to the support element or the stop.

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Wuppertal, Germany

Jens Picard