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:
Dec. 04, 2001
Filed:
Nov. 02, 1999
Applicant:
Inventors:
Zdenek Meistrick, Bloomfield, CT (US);
Yoshihide Maeda, Hino, JP;
Vincent Pitzi, South Windsor, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 1/304 ; F02M 2/507 ;
U.S. Cl.
CPC ...
F02D 1/304 ; F02M 2/507 ;
Abstract
This invention is an exhaust gas recirculation apparatus such that exhaust gas recirculation master piston (,) is activated and acts to open exhaust valve (,) on the same cylinder (,) by driving a slave piston (,), thus recirculating exhaust gas into combustion chamber (,) from exhaust port (,) as a result of the pressure difference, thereby lowering the combustion temperature within combustion chamber (,) on the next power stroke and working to reduce NO,. Moreover, by selectively maintaining and releasing oil pressure in two types of passages (,) and (,), it can also be used as a compression pressure-release engine brake.