MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202617066621 A) filed by Wrtsil Netherlands B. V. on May 27, 2026, for Method And Apparatus For Controlling Ship Propulsion, And A Propulsion System.
Inventor includes Tiainen, Lauri.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: A propulsion system (TWIN1) for moving a ship (SHIP1) comprises: - a controllable pitch propeller (PRO1) driven by an engine (ENG1), - a left rudder (R1), - a right rudder (R2), and - a control system (CSYS1), wherein the left rudder (R1) has a first turning axis (AX1) and a first trailing edge (TE1), wherein the right rudder (R2) has a second turning axis (AX2) and a second trailing edge (TE2), wherein a distance (wG) between the trailing edges (TE1, TE2) is adjustable by changing the difference (?1-?2) between a rudder angle (?1) of the left rudder (R1) and a rudder angle (?2) of the right rudder (R2), wherein the propulsion system (TWIN1) has a first operating mode (MODE1), where changing the velocity (vS) of the ship (SHIP1) comprises changing the shaft power (PS) of the propeller (PRO1), wherein the propulsion system (TWIN1) has a second operating mode (MODE2), where the control system (SYS1) is arranged to change the velocity (vS) of the ship (SHIP1) by changing the difference (?1-?2) between the rudder angle (?1) of the left rudder (R1) and the rudder angle (?2) of the right rudder (R2), wherein the control system (SYS1) is arranged to change the pitch angle (aP) of the propeller (PRO1) such that the shaft power (PS) is kept substantially equal to a first power value (P1) in a situation where the velocity (vS) of the ship (SHIP1) is changed by changing the difference (?1-?2) between the rudder angles (?1-?2).
Disclaimer: Curated by HT Syndication.
