Kockums To Retrofit Swedish Sub With Air-Independent Stirling Engine
Kockums AB of Malmo, Sweden, has been awarded a contract by the Swedish Navy to install its airindependent propulsion system, based on the Stirling principle, in an existing conventional submarine.
The combat efficiency will increase with an increase in submerged endurance, allowing the submarine to operate in highly troublesome areas with a minimum of risk of being detected. Conventional submarines are vulnerable to detection when showing the snorkel to recharge the batteries. The new air-independent Stirling propulsion system developed in Sweden will increase the sub's submerged endurance from days to weeks.
The Stirling engine is an externally heated, continuous combustion motor. For combustion, fuel oil is provided from the ordinary onboard bunker oil supply, and oxygen from liquefied oxygen (LOX) storage tanks. The Stirling generators will provide the necessary electrical energy for the extended submerged endurance that will be limited only by the size of the LOX tanks.
As the Stirling engine is extremely quiet, and the exhaust from the overpressure combustion chamber is dissolved in the seawater, the airindependent machinery could be used whenever submerged. The Stirling has been developed for use at slow speeds; for high speeds the storage batteries will be used.
The Swedish Navy order at Kockums will involve cutting an existing conventionally powered submarine and lengthening it with the neutrally buoyant Stirling section containing the air-independent propulsion system with its LOX supply. The system was developed by the Swedish submarine design authority and Kockums, in cooperation with United Stirling AB for the engine and AGA for the LOX system.
For further information on Kockums, Circle 67 on Reader Service Card For free literature on the Stirling engine, Circle 68 on Reader Service Card
Other stories from March 1986 issue
Content
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- Gary Carlson Joins Midland-Ross Corp. As Group Executive VP page: 8
- WATERCOM Telecommunications System To Be Fully Operational This Year page: 8
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- LATEST CHANGES IN U.S. NAVY SHIPBUILDING PROGRAM page: 12
- NEW NAVY BUDGET: OVER $100 BILLION page: 22
- NAVY CONTRACTS page: 30
- USCG Awards Aquafacs Inspection, Maintenance And Repair Contract page: 33
- Teleflex RMVAs Eliminate Corrosion, Misalignment And Binding Problems page: 33
- Marine Corps League's 6th Annual Exhibition Set For July 22-24 In D.C. page: 36
- 1986 VALVE EQUIPMENT GUIDE page: 38
- Fincantieri Awarded Orders For Seven Ships page: 45
- Japan Radio Offers New Literature On Products— GSC-80 ODARS And JLR-4000 GPS Navigator page: 45
- Bonner Elected Chairman, Solley Vice Chairman Of VMA page: 46
- Infrasonik Receives Order For Soot-Removal Systems From U.S. Shipping Line page: 47
- AWO: PROMOTING, PROTECTING AND DEFENDING THE BARGE AND TOWING INDUSTRY page: 48
- INTERCEPTING AND INFLUENCING THE REGULATORY PROCESS page: 49
- THE BARGE AND TOWING INDUSTRY: A LEGISLATIVE REVIEW page: 50
- THE INVISIBLE INDUSTRY page: 52
- R.J. Paine Named Marine Marketing Manager At Penske page: 54
- Intertrade Given Additional Navy Contract For Marine Fenders page: 54
- Stellar Technology's Battleship Spare Parts Depot Locates In Camden page: 55
- Coastal Corporation Purchase Of Texaco Terminal And Pipeline Interest Expands Market For Belcher Oil page: 56
- Big Heavy-Lift Cargo Carrier Delivered By Hitachi Zosen page: 56
- Free 28-Page Color Catalog On Bearings Offered By Duramax page: 58
- Kockums To Retrofit Swedish Sub With Air-Independent Stirling Engine page: 59
- Curtis Bay Towing Elects Swensen VP And General Manager page: 59
- Hempel Group Founder Dies At Age Of 91 page: 60
- Duff And Butera Hired At CDI Marine Company page: 60
- Record Well Depth For Floating Drilling Rig Set By ODECO's 'Ocean Rover' page: 61
- Michell Bearings Appoints Peter Pagan President page: 61
- TDI Introduces New Infrared Thermometer Kit page: 61
- MarineSafety Initiates Tug-Barge Simulator Training Course page: 62
- Alden Introduces Series Of Marinefax Recorders page: 62
- New Aeroquip Bulletin Explains Hose Assembly Machine Advantages page: 64
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