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:
Apr. 27, 2010
Filed:
Jul. 24, 2007
Leslie Bromberg, Sharon, MA (US);
Paul Blumberg, Southfield, MI (US);
Daniel R. Cohn, Cambridge, MA (US);
John Heywood, Newtonville, MA (US);
Leslie Bromberg, Sharon, MA (US);
Paul Blumberg, Southfield, MI (US);
Daniel R. Cohn, Cambridge, MA (US);
John Heywood, Newtonville, MA (US);
Ethanol Boosting Systems LLC, Cambridge, MA (US);
Abstract
Engine management system for operation of a direct injection spark ignition gasoline engine. The system includes a gasoline engine, a source of gasoline and a source of an anti-knock agent. Gasoline and anti-knock agent are introduced into a proportioning valve that delivers a selected mixture of gasoline/anti-knock agent to a high pressure pump. At least one injector receives the selected mixture from the high pressure pump and delivers the mixture into a cylinder of the engine. The engine management system provides a rapidly variable mixture of directly injected anti-knock agent and gasoline which prevents knock as the engine torque increases.