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:
Mar. 10, 1987
Filed:
Aug. 19, 1985
Yoshikazu Noguchi, Okazaki, JP;
Tatsuhisa Yokoi, Toyota, JP;
Eisaku Takeya, Aichi, JP;
Hideyuki Osawa, Obu, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, JP;
Abstract
An intake manifold (2) for an internal combustion engine equipped with an exhaust gas recirculation (EGR) system for recirculating a part of the exhaust gas to the intake system, having a V-shaped rib (13) formed on the inner surface thereof with the vertex (13a) directed upstream with respect to the flow of the intake air. The V-shaped rib is positioned upstream of the EGR gas outlet (10) of the EGR system so that oil contained in blow-by gas supplied by a positive crankcase ventilation (PCV) system or charged-air supplied by a turbocharger into the intake manifold (2) does not flow into the EGR gas outlet (10), but flows away from the EGR gas outlet (10). Therefore, the deposition of sludge around the EGR gas outlet (10) is prevented and a sufficient EGR rate is secured.