Patent ID: 7806092
Filing Date: 2010-10-05
Classification: F02B,F02F

Abstract:
1. A drive device mounted in a vehicle body, comprising: a transmission device; a variable compression ratio internal combustion engine that includes a crankcase that rotatably supports a crankshaft coupled to the transmission device, and a cylinder block disposed above the crankcase, and that is capable of changing a compression ratio by moving the cylinder block relative to the crankcase in a cylinder axis direction; a support member whose portion is supported on the vehicle body in order to support the drive device on the vehicle body; a cylinder block-side chain case fixed to the cylinder block so as to cover a front surface of the cylinder block that is a surface opposite from a side of the cylinder block where the transmission device is disposed; and a crankcase-side chain case which is fixed to the crankcase so as to cover a front surface of the crankcase that is a surface opposite from a side of the crankcase where the transmission device disposed, and which has a support member coupling portion that couples to another portion of the support member.