Invention Grant
- Patent Title: Piston with blow-by feature and method of preventing catastrophic failure to an internal combustion engine
- Patent Title (中): 具有窜气功能的活塞和防止内燃机的灾难性故障的方法
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Application No.: US12943283Application Date: 2010-11-10
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Publication No.: US08635943B2Publication Date: 2014-01-28
- Inventor: Eduardo H. Matsuo , Kai Wang
- Applicant: Eduardo H. Matsuo , Kai Wang
- Applicant Address: US MI Southfield
- Assignee: Federal-Mogul Corporation
- Current Assignee: Federal-Mogul Corporation
- Current Assignee Address: US MI Southfield
- Agency: Dickinson Wright, PLLC
- Agent Robert L. Stearns
- Main IPC: F01B31/08
- IPC: F01B31/08

Abstract:
A piston and method is provided that inhibits the potential catastrophic damage to an internal combustion engine, thereby reducing the risk of costly damage to the engine. The piston includes a piston body having an upper combustion surface separated from an internal cooling chamber by a wall. The a pocket extends into the upper combustion surface to a closed bottom surface of the wall. A tubular member is disposed in the pocket. The tubular member extends upwardly from the upper surface. Should a valve head drop from its normal operating position, the valve head impacts the tubular member and forms a blow-by through passage extending from the upper combustion surface into the cooling chamber.
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