US 2026/0028110 A1 · SHIP PROPULSION MACHINE

Abstract

A ship propulsion machine includes a first and second power sources for rotating a propeller, an intake port, a first cooling water supply passage connecting the intake port to the first power source, a pump that sends water flowed into the first cooling water supply passage from outside of the ship propulsion machine via the intake port toward the first power source as cooling water, a drain port, a first cooling water discharge passage connecting the first power source to the drain port a heat exchanger, a cooling medium circulation passage that circulates a cooling medium between the second power source and the heat exchanger, a second cooling water supply passage branched from the first cooling water supply passage and connecting the first cooling water supply passage to the heat exchanger, and a second cooling water discharge passage connecting the heat exchanger to the drain port.

Claims9

Dependent claims

A ship propulsion machine for propelling a boat, the ship propulsion machine comprising:

a first power source for rotating a propeller;
a second power source for rotating the propeller;
an intake port;
a first cooling water supply passage connecting the intake port to the first power source;
a pump configured to send water flowed into the first cooling water supply passage from outside of the ship propulsion machine via the intake port toward the first power source as cooling water;
a drain port;
a first cooling water discharge passage connecting the first power source to the drain port;
a heat exchanger;
a cooling medium circulation passage configured to circulate a cooling medium between the second power source and the heat exchanger;
a second cooling water supply passage branched from the first cooling water supply passage and connecting the first cooling water supply passage to the heat exchanger;
and
a second cooling water discharge passage connecting the heat exchanger to the drain port.

9 more elements

A ship propulsion machine for propelling a boat, the ship propulsion machine comprising:

a first power source for rotating a propeller;
a second power source for rotating the propeller;
an intake port;
a first cooling water supply passage connecting the intake port to the first power source;
a pump configured to send water flowed into the first cooling water supply passage from outside of the ship propulsion machine via the intake port toward the first power source as cooling water;
a drain port;
a first cooling water discharge passage connecting the first power source to the drain port;
a second cooling water supply passage branched from the first cooling water supply passage and connecting the first cooling water supply passage to the second power source;
and
a second cooling water discharge passage connecting the second power source to the drain port.

7 more elements

Dependencies are inferred from the claim text.

Ship propulsion machine

Life of this patent

Ship propulsion machine

Life of this patent

Abstract

Claims9