Invention Grant
- Patent Title: Galleryless piston with improved pocket cooling
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Application No.: US15437631Application Date: 2017-02-21
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Publication No.: US10428761B2Publication Date: 2019-10-01
- Inventor: Thomas Scherbaum , Sven Ungermann , Harald Mergler , Josef Harrer , Michael Seiffert , Georg Hopp , Arnd Baberg , Hanno Necker , Michael Weinenger , Jeffrey L. Riffe
- Applicant: FEDERAL-MOGUL LLC
- Applicant Address: US IL Lake Forest
- Assignee: Tenneco Inc.
- Current Assignee: Tenneco Inc.
- Current Assignee Address: US IL Lake Forest
- Agency: Dickinson Wright, PLLC
- Agent Robert L. Stearns
- Priority: DE102016204830 20160323
- Main IPC: F02F3/00
- IPC: F02F3/00 ; F02F3/22 ; F02F3/20

Abstract:
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.
Public/Granted literature
- US20170241374A1 GALLERYLESS PISTON WITH IMPROVED POCKET COOLING Public/Granted day:2017-08-24
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