POWER-TRANSMISSION DEVICE AND HYBRID CONSTRUCTION EQUIPMENT PROVIDED THEREWITH

摘要

A configuration is provided to directly utilize the power of an engine as the power of a hydraulic pump, and to efficiently perform power generation and engine assist. The configuration is provided with an engine (14); a generator (15) which is configured to generate electric power by an operation of the generator using the power of the engine (14); a battery (19) which is configured to store the electric power generated by the generator (15); a motor (16) which is configured to be operated by the power of the engine (14) and by the electric power of the battery (19); a hydraulic pump (18) connected to the motor (16) so as to be driven by operation of the motor (16); and a power divider (17) connected to the engine (14), the generator (15), and the motor (16) so that the power of the engine (14) is distributed to the generator (15) and to the motor (16).