US 12,291,315 B2
Cathodic protection and anti-fouling arrangement and method
Viktor Räftegård, Floda (SE)
Assigned to VOLVO PENTA CORPORATION, Gothenburg (SE)
Appl. No. 17/754,981
Filed by VOLVO PENTA CORPORATION, Gothenburg (SE)
PCT Filed Oct. 18, 2019, PCT No. PCT/EP2019/078412
§ 371(c)(1), (2) Date Apr. 18, 2022,
PCT Pub. No. WO2021/073757, PCT Pub. Date Apr. 22, 2021.
Prior Publication US 2022/0363354 A1, Nov. 17, 2022
Int. Cl. B63B 59/04 (2006.01); B63B 59/00 (2006.01); B63H 20/32 (2006.01); C23F 13/04 (2006.01); C23F 13/06 (2006.01); B63B 39/06 (2006.01); B63H 20/00 (2006.01)
CPC B63B 59/04 (2013.01) [B63H 20/32 (2013.01); C23F 13/04 (2013.01); C23F 13/06 (2013.01); B63B 39/061 (2013.01); B63B 59/00 (2013.01); B63H 20/00 (2013.01); C23F 2213/31 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A marine vessel comprising a cathodic protection and anti-fouling arrangement and a marine propulsion system, the marine propulsion system comprising;
at least one driveline housing at least partially submerged in water;
a torque transmitting drive shaft extending out of the driveline housing;
at least one propeller mounted on the drive shaft;
the arrangement being wherein
the at least one propeller is electrically isolated from the drive shaft the at least one propeller is mounted on;
the at least one electrically isolated propeller to be protected against fouling is connected to a positive terminal of a direct current power source;
at least one metallic component of the marine vessel to be protected against corrosion is connected to a negative terminal of the direct current power source; and that
a control unit is arranged to regulate the voltage and current output from the direct current power source.