The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2011
Filed:
Jun. 24, 2010
Zheng Xu, Canton, MI (US);
Jianwen James Yi, Canton, MI (US);
Steven Wooldridge, Saline, MI (US);
David Bruce Reiche, Livonia, MI (US);
Neal James Corey, Canton, MI (US);
Stephen George Russ, Canton, MI (US);
Steven Paul Penkevich, New Hudson, MI (US);
Claudia Olivia Lyer, Canton, MI (US);
Zheng Xu, Canton, MI (US);
Jianwen James Yi, Canton, MI (US);
Steven Wooldridge, Saline, MI (US);
David Bruce Reiche, Livonia, MI (US);
Neal James Corey, Canton, MI (US);
Stephen George Russ, Canton, MI (US);
Steven Paul Penkevich, New Hudson, MI (US);
Claudia Olivia Lyer, Canton, MI (US);
Ford Global Technologies LLC, Dearborn, MI (US);
Abstract
A combustion system for a direct-injection, spark-ignition engine is disclosed. A side-mounted fuel injector located outboard the intake valves directs multiple fuel jets into a shallow, spherical bowl formed in a domed piston. Both good mixing to facilitate good air utilization with early injection and an ignitable mixture at the spark plug with late injection to facilitate cold start are provided with such a combustion system. Because the bowl is smooth and shallow, the surface area of the combustion chamber is less than with a deeper bowl of complicated shape. Lowering surface area in the combustion chamber leads to improved fuel economy.