US2011031931A1PendingUtilityA1

Method and apparatus for providing power to a marine vessel

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Assignee: REMBACH PAULPriority: Nov 25, 2007Filed: Nov 25, 2008Published: Feb 10, 2011
Est. expiryNov 25, 2027(~1.3 yrs left)· nominal 20-yr term from priority
Inventors:Paul F. RembachGreg Castleman
B63J 2003/043B63J 3/04B63H 21/17B63H 21/20Y02T70/5236B63J 3/02Y02T70/50Y02T90/40Y02T70/5218
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PatentIndex Score
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Claims

Abstract

A system and a method for providing power to a marine vessel and, more particularly to a tugboat is disclosed. The system includes diesel engines and generators and batteries which can be charged using power supplied by the generators, shore power or regenerated power. The tugboat is operated utilizing battery power only and the generators are used to provide additional power if needed or to recharge the batteries.

Claims

exact text as granted — not AI-modified
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         23 . A method of operating a vessel, comprising:
 generating charging power from a generator that provides a voltage output;   varying the voltage output of the generator;   charging a battery system with the charging power;   providing sufficient power from the battery system to move the vessel; and   moving the vessel.   
     
     
         24 . The method according to  claim 23  wherein the step of moving the vessel includes the step of providing the power to a propeller of the vessel. 
     
     
         25 . The method according to  claim 23  wherein the step of generating charging power includes the step of utilizing power from a generator. 
     
     
         26 . The method according to  claim 23  wherein the step of generating charging power includes the step of recovering energy from the vessel. 
     
     
         27 . The method according to  claim 24  wherein the step of generating charging power includes the step of recovering energy from the propeller of the vessel. 
     
     
         28 . The method according to  claim 23  further including the step of converting alternating current to direct current. 
     
     
         29 . The method according to  claim 23  further including the step of converting direct current to alternating current. 
     
     
         30 . The method according to  claim 23  further including the step of harvesting energy from the vessel. 
     
     
         31 . The method according to  claim 23  further including the step of controlling the charging of the battery system. 
     
     
         32 . A method of providing power to a vessel, comprising:
 generating charging power from a generator that provides a voltage output;   varying the voltage output of the generator;   charging a battery system with the charging power;   providing sufficient power from the battery system to satisfy substantially all the power needs of the vessel.   
     
     
         33 . The method according to  claim 32  wherein the providing step includes the step of supplying all of the power needed to move the vessel. 
     
     
         34 . The method according to  claim 32  wherein the step of generating charging power includes the step of utilizing power from a generator. 
     
     
         35 . The method according to  claim 32  wherein the step of generating charging power includes the step of recovering energy from the vessel. 
     
     
         36 . The method according to  claim 33  wherein the step of generating charging power includes the step of recovering energy from the movement of the vessel. 
     
     
         37 . The method according to  claim 32  further including the step of converting alternating current to direct current. 
     
     
         38 . The method according to  claim 32  further including the step of converting direct current to alternating current. 
     
     
         39 . The method according to  claim 32  further including the step of harvesting energy from the vessel. 
     
     
         40 . The method according to  claim 32  further including the step of controlling the charging of the battery system. 
     
     
         41 . The method according to  claim 23  further including the step of driving the generator by a diesel engine. 
     
     
         42 . The method according to  claim 41  further including the step of varying the speed of the diesel engine.

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