Invention Grant
- Patent Title: Piston bowl with spray jet targets
- Patent Title (中): 活塞碗与喷射目标
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Application No.: US12763484Application Date: 2010-04-20
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Publication No.: US09279361B2Publication Date: 2016-03-08
- Inventor: Rainer J. Rothbauer , Charles E. Roberts, Jr.
- Applicant: Rainer J. Rothbauer , Charles E. Roberts, Jr.
- Applicant Address: US TX San Antonio
- Assignee: SOUTHWEST RESEARCH INSTITUTE
- Current Assignee: SOUTHWEST RESEARCH INSTITUTE
- Current Assignee Address: US TX San Antonio
- Agency: Grossman, Tucker et al.
- Main IPC: F02F3/26
- IPC: F02F3/26 ; F02B19/00 ; F02B23/06

Abstract:
A piston for a direct injection engine is provided, the piston having a bowl at an upper end, the bowl forming a portion of a combustion chamber. The bowl includes an inner surface that defines a volume configured to receive a fuel-air mixture, the inner surface of the bowl including at least one surface feature as a target for the fuel spray, the surface feature angled 20° to 80° from the piston face. The surface feature may protrude from the inner surface of the bowl or may be recessed into the inner surface. Such surface features may reduce soot and improve fuel-air mixing.
Public/Granted literature
- US20110253095A1 Piston Bowl With Spray Jet Targets Public/Granted day:2011-10-20
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