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Azipods on the United States Coast Guard icebreaker USCGC Mackinaw
Azipods on the United States Coast Guard icebreaker USCGC Mackinaw
Closeup of one of USCGC Mackinaw's azipods
Closeup of one of USCGC Mackinaw's azipods

Azipod is the registered brand name of the ABB Group for their azimuth thruster. An icebreaker is a special purpose Ship or Boat designed to move and navigate through Ice -covered waters Gallery A brand is a collection of Images and ideas representing an economic producer more specifically it refers to the descriptive verbal attributes and concrete symbols such as a } ABB, formerly Asea Brown Boveri, is a Multinational corporation headquartered in Zürich, Switzerland, operating mainly in the power An Azimuth thruster is a configuration of Ship propellers placed in pods that can be rotated in any horizontal direction making a Rudder unnecessary These are marine propulsion units consisting of electrically driven propellers mounted on a steerable pod. Marine propulsion is the act of moving a floating object over or through water A number of vehicles use a diesel-electric Powertrain for providing locomotion. Steering is the term applied to the collection of components linkages etc

The pod's propeller usually faces forward, as in this puller (or tractor) configuration, the propeller is more efficient. A propeller is essentially a type of fan which transmits power by converting Rotational motion into Thrust for propulsion of a vehicle such as an In addition, because it can rotate around its mount axis, the pod can apply its thrust force in any direction. Azimuth thrusters allow ships to be more maneuverable and enable them to travel backward nearly as easily as they can travel forward. The Azipod concept is not practical for use on warships because of damage control difficulties; integrating propulsion with rudder makes both easier to damage or destroy. A warship is a Ship that is built and primarily intended for Combat.

The new CRP (Contra Rotating Propellers) Azipod places a counter rotating azipod propeller behind a fixed propeller achieving improved fuel economy. Contra-rotating propellers, also referred to as coaxial contra-rotating propellers, apply the maximum power of a single piston or Turboprop engine Fuel economy in automobiles is the amount of Fuel required to move the Automobile over a given Distance.

Contents

Azipod concept

In the traditional azimuth propulsion system the (electric) motor is located inside the ship's hull and rotation is transferred to the propeller through a gearbox. An Azimuth thruster is a configuration of Ship propellers placed in pods that can be rotated in any horizontal direction making a Rudder unnecessary In the Azipod system the electric motor is installed inside the pod. The propeller is connected directly to the motor shaft. No gearbox is required, thus providing greater efficiency.

Electric power for the Azipod motor is conducted through slip rings that allow the Azipod to turn through 360 degrees. Because fixed pitch propellers are used in Azipods, power for Azipod is always fed through a variable-frequency drive that allows speed control of the propulsion motor. A variable-frequency drive (VFD is a system for controlling the rotational speed of an Alternating current (AC Electric motor by controlling the frequency of the

Ships with Azipod thrusters

Cruise ships

Cargo Vessels

See also

Notes

  1. ^ Podded Propulsion Systems. The Finnish Maritime Cluster is a cluster of companies in maritime industries in Finland Marinelog. com. Retrieved on 2007-12-03. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 1800 - War of the Second Coalition: Battle of Hohenlinden, French  “As has been well publicized, not all has been smooth running for the Azipod. Last July [year is not stated] there was a malfunction in the propeller bearing system of one of the Azipod propulsion system onboard Carnival’s 1998-built Paradise. The ship, following the failure of the starboard Azipod unit, was drydocked immediately at Newport News Shipbuilding (NNS), where the first ever repair to an Azipod system in a United States repair yard was carried out. Northrop Grumman Shipbuilding ( NGS) formerly called Northrop Grumman Newport News ( NGNN) or Newport News Shipbuilding and Drydock Company ”
  2. ^ Electrical Pod. Rolls Royce Marine. Retrieved on 2007-12-03. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 1800 - War of the Second Coalition: Battle of Hohenlinden, French
  3. ^ Podded Propulsion. Marinelog. com. Retrieved on 2007-12-03. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 1800 - War of the Second Coalition: Battle of Hohenlinden, French  “However, the Mermaid, too, has had its teething problems. In January [year not stated], Celebrity Cruises announced yesterday that it was placing the ship Millennium in dry dock for two weeks to repair what it described as an “under-performing electric motor” in one of the ship’s two propulsion units. ”

External links

Dictionary

azipod

-noun

  1. (nautical) an azimuth thruster, an engine and ships' propeller in an underslung pod that is azimuth adjustable, to replace a fixed-azimuth propeller and rudder configuration
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