US 2006/0219229 A1 · Exhaust gas recirculation system for a V-type internal combustion engine, and engine including same

Abstract

An EGR control valve is disposed on a V-type internal combustion engine such that the engine is compact as a whole. In the internal combustion engine, cylinders are provided with the cylinders spaced apart from each other in a V-shape, and exhaust gas obtained from an exhaust port of the rear cylinder is supplied to intake ports of the respective cylinders via a single EGR control valve through exhaust-gas supply channels having a branching chamber. The EGR control valve is provided in a V bank space between the cylinders. In addition, the EGR control valve is disposed at the rear of the front cylinder, so that the cooling of the EGR control valve due to exposure to the wind caused by vehicle travel is inhibited, and the exhaust gas is maintained at a high temperature during recirculation.

Claims14

Dependent claims

An internal combustion engine comprising a crankcase, and a plurality of cylinders provided on the crankcase, the cylinders spaced from each other in a V-shape such that a V-shaped space exists between the cylinders,

the engine further comprising a control valve, and plural exhaust ports and plural intake ports communicating with an interior of the cylinders,
wherein the control valve recirculates exhaust gas obtained from an exhaust port of the internal combustion engine into the intake ports of the internal combustion engine, the control valve disposed in the V-shaped space between cylinders, and
wherein channels are provided for supplying exhaust gas from the control valve to the intake ports of the cylinders.

An internal combustion engine mounted in a vehicle, the internal combustion engine comprising a crankcase, and a plurality of cylinders provided on the crankcase, the cylinders spaced from each other in a V-shape t such that at least one cylinder is inclined in a forward direction of the vehicle, and at least one cylinder is inclined in a rearward direction of the vehicle,

the engine further comprising a control valve, and plural exhaust ports and plural intake ports communicating with an interior of each of the respective cylinders,
wherein the control valve recirculates exhaust gas obtained from only an exhaust port of the at least one cylinder inclined in a rearward direction of the vehicle into each of the intake ports of the internal combustion engine, the control valve disposed in the V-shaped space between cylinders, and
wherein channels are provided for supplying exhaust gas from the control valve to the intake ports of the plurality of cylinders.

Dependencies are inferred from the claim text.

Exhaust gas recirculation system for a V-type internal combustion engine, and engine including same

Life of this patent

Exhaust gas recirculation system for a V-type internal combustion engine, and engine including same

Life of this patent

Abstract

Claims14