Invention Grant
- Patent Title: Steel piston with cooling gallery and method of construction thereof
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Application No.: US14459929Application Date: 2014-08-14
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Publication No.: US10590884B2Publication Date: 2020-03-17
- Inventor: Florin Muscas , Eduardo H. Matsuo
- Applicant: Federal-Mogul Corporation
- 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
- Main IPC: F02F3/00
- IPC: F02F3/00 ; F02F3/22

Abstract:
A piston and method of construction is provided. The piston includes a top part fixed to a bottom part. The top part has an uppermost surface with annular inner and outer upper joining surfaces depending therefrom. The bottom part has a pair of pin bosses with pin bores aligned with one another along a pin bore axis; a pair of upwardly extending annular inner and outer lower joining surfaces and a combustion bowl wall. Inner and outer weld joints fix the inner and outer upper and lower joining surfaces to one another. An annular cooling gallery is formed laterally between the upper and lower joining surfaces. The inner weld joint joining the top part to the bottom part is located within the combustion bowl wall and configured to minimized the compression height of the piston.
Public/Granted literature
- US20140352650A1 STEEL PISTON WITH COOLING GALLERY AND METHOD OF CONSTRUCTION THEREOF Public/Granted day:2014-12-04
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