Tenneco Gmbh

Josef Harrer

Michael Weinenger

Jeffrey L Riffe

Arnd Baberg

Harald Mergler

Thomas Scherbaum

Sven Ungermann

Hanno Necker

Michael Seiffert

Georg Hopp

A galleryless piston having a reduced temperature during operation in an engine is provided. The piston includes an upper wall with an exposed undercrown surface. A ring belt and pin bosses depend from the upper wall, and a pair of skirt panels depend from the ring belt and are coupled to the pin bosses by struts. The piston includes an inner undercrown region and outer pockets extending along the undercrown surface. The inner undercrown region is surrounded by the skirt panels, the struts, and the pin bosses. Each outer pocket is surrounded by one of the pin bosses, a portion of the ring belt, and the struts adjacent the one pin boss. A plurality of holes extend through the pin bosses and/or the struts from the inner undercrown region to one of the outer pockets to convey cooling oil from the inner undercrown region to the outer pockets.

Galleryless piston with improved pocket cooling

Growing community of inventors

Hilpoltstein, Germany

Josef Harrer