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:
Jun. 20, 1978
Filed:
Nov. 29, 1976
Nobuaki Wakita, Susono, JA;
Kiyoshi Yuuki, Susono, JA;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Abstract
Disclosed is an internal combustion engine with an exhaust gas recirculating system. The engine has a movable shroud. The shroud is positioned near the rear surface of the valve head of the intake valve so as to obstruct a part of the mixture stream flowing through the valve opening of the intake valve for creating the swirl motion of the mixture in the combustion chamber when the amount of the recirculated exhaust gas is larger than a predetermined level. The shroud is retracted to a position where the shroud does not obstruct the mixture stream flowing in the intake port of the engine when the amount of the recirculated exhaust gas is smaller than said predetermined level.