Patent ID: 7388301

Claim:
A construction machine comprising: a lower traveling body; an upper rotating body mounted on said lower traveling body; a cabin mounted on one of right and left sides of a front portion of said upper rotating body; a counterweight disposed in a rear end portion of said upper rotating body; an engine disposed behind said cabin and in front of said counterweight, said engine being installed in a state in which an output shaft thereof faces in a substantially transverse direction; and a hybrid unit, said hybrid unit including: a generator-motor for performing a generator function and a motor function; an electric power storage device adapted to be charged by an output of said generator-motor; and an inverter/converter for controlling the operation of said generator-motor and that of said electric power storage device, wherein a power divider for distributing engine power to a hydraulic pump and said generator-motor is disposed on one of right and left sides of said engine, said electric power storage device and said inverter/converter are disposed right and left in parallel behind said cabin and in front of said engine, and an L-shaped partition wall in a plan view which defines an engine room is configured by casings which receive therein said electric power storage device, said inverter/converter, and said power divider, respectively.