A ship propulsion machine includes a motor, an inverter, a propeller, a power transmission mechanism, and a cooling mechanism. The cooling mechanism includes: a motor water jacket configured to cool the motor by allowing cooling water to flow therein; an inverter water jacket configured to cool the inverter by allowing the cooling water to flow therein; a first cooling water passage configured to allow the cooling water to flow toward the motor water jacket and the inverter water jacket; and a branch passage connecting the motor water jacket and the inverter water jacket to the first cooling water passage such that the motor water jacket and the inverter water jacket are connected in parallel with each other. The branch passage is configured to distribute and supply the cooling water flowing in the first cooling water passage to the motor water jacket and the inverter water jacket.
SHIP PROPULSION MACHINE
2025-05-15
Patent
Electronic Resource
English