Split/dual plane integrated exhaust manifold for dual scroll turbo charger

US9133745B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Akram R. Zahdeh · Wilmington, US
• Colin Blacklock Bosman · Rochester Hills, US
• Kenneth M. Eastman · Troy, US
• Robert S. McAlpine · Lake Orion, US

Key dates

• Filing date: Aug 30, 2013
• Grant date: Sep 15, 2015
• Expiry date: Nov 12, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An integrated exhaust manifold for use with an internal combustion engine and dual scroll turbocharger. The integrated exhaust manifold includes a first exhaust passageway fluidly connected between a first pair of piston cylinders and the dual scroll turbocharger for transporting exhaust gas from the first pair of piston cylinders to a first input of dual scroll turbocharger. The integrated exhaust manifold includes a second exhaust passageway fluidly connected between a second pair of piston cylinders and the dual scroll turbocharger for transporting exhaust gas from the second pair of piston cylinders to a second input of the dual scroll turbocharger. The second exhaust passageway is fluidly independent from the first exhaust passageway and the first and second exhaust passageways are positioned to define a septum area therebetween. A cooling system having a septum cooling jacket is use to cool the septum area between the first and second exhaust passageways.