Patent ID: 7428888
Filing Date: 2008-09-30
Classification: F02M

Abstract:
1. A V-type engine air intake device comprising: a volume chamber arranged between a first side cylinder bank and a second side cylinder bank, the volume chamber having a first intake opening located adjacent the first side cylinder bank and a second intake opening located adjacent the second side cylinder bank; a first intake pipe having a first outlet end connected to the first intake opening of the volume chamber and a first inlet end arranged to supply intake air drawn into the first intake pipe to the volume chamber, the first outlet end being arranged with a first center outlet axis where that the first intake pipe connects to the first intake opening of the volume chamber; a second intake pipe having a second outlet end connected to the second intake opening of the volume chamber and a second inlet end arranged to supply intake air drawn into the second intake pipe to the volume chamber, the second outlet end being arranged with a second center outlet axis where that the second intake pipe connects to the second intake opening of the volume chamber, with the second center outlet axis being non-coincident with the first center outlet axis; and a plurality of curved branch pipes each having an inlet end that opens inside the volume chamber in a substantially vertical downward direction and an outlet end opening for supplying intake air to a corresponding cylinder of the first and second cylinder banks.