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. 08, 2003
Filed:
Jul. 19, 2001
Charles Edward Roberts, Jr., San Antonio, TX (US);
Rudolf Hermann Stanglmaier, San Antonio, TX (US);
Southwest Research Institute, San Antonio, TX (US);
Abstract
A high efficiency compression ignition after-treatment system of a combustion engine includes a first combustion chamber adapted to reciprocatably receive a first piston assembly and a second combustion chamber adapted to reciprocatably receive a second piston assembly. A combustion exhaust passage is coupled between the first and the second combustion chambers. A fuel passage may be connected to the first combustion chamber, and a fuel passage connected to the second combustion chamber. A processed exhaust passage is coupled to the second combustion chamber for receiving the processed exhaust therethrough. A fuel injector is coupled to the second combustion chamber. A three-way catalyst has an inlet coupled to the processed exhaust passage and an outlet coupled to an exhaust passage. An exhaust gas oxygen sensor is connected to the processed exhaust passage. A fuel controller is coupled to the fuel injector and the exhaust gas oxygen sensor.