Invention Grant
- Patent Title: Piston for spark-ignited direct fuel injection engine
- Patent Title (中): 用于火花点火的直喷式发动机的活塞
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Application No.: US10248722Application Date: 2003-02-12
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Publication No.: US06892693B2Publication Date: 2005-05-17
- Inventor: David T. Montgomery , Sebastian Strauss
- Applicant: David T. Montgomery , Sebastian Strauss
- Applicant Address: CA Valcourt
- Assignee: Bombardier Recreational Products, Inc.
- Current Assignee: Bombardier Recreational Products, Inc.
- Current Assignee Address: CA Valcourt
- Agency: BRP Legal Services
- Main IPC: F02B23/10
- IPC: F02B23/10 ; F02F3/28 ; F02F3/26

Abstract:
A piston for an internal combustion engine is disclosed. A bowl-shaped recess is constructed in the combustion face of the piston. The recess has a w-shaped cross-section. The w-shaped cross-section is unsymmetrical and has at least one side that is mostly vertical. The recess is positioned off-center in the face of the piston so that fuel that is injected into the cylinder is redirected by the recess toward a center space of the cylinder thereby improving combustion of fuel in the cylinder and preventing fuel from accumulating about a periphery of the combustion chamber.
Public/Granted literature
- US20040154579A1 PISTON FOR SPARK-IGNITED DIRECT FUEL INJECTION ENGINE Public/Granted day:2004-08-12
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