Product information. ABB Turbocharging VTC

Transcription

1 Product information ABB Turbocharging VTC

2 Proven reliability over the years The VTC is long-established and proven in applications where space restrictions call for a compact turbocharger. VTC high-performance turbochargers are designed for diesel engines with rated outputs from 1000 up to 3200 kw per turbocharger, where restricted space demands a compact turbocharger. The aerodynamic design of the rotating components, i.e. the turbine and compressor, of the VTC turbochargers is the same as for the VTR..4, which is noted for high overall efficiency. To enable a space-saving design it was decided to use separately lubricated plain bearings between the turbine and compressor. The resulting reduction in overall length permits a compact arrangement on the engine and free flow of the exhaust gases to the turbine. The plain bearings are lubricated via the engine s lube oil system. No postlubrication is needed when the engine is shut down. However, when the engine is started up, the turbocharger, like the engine, requires prelubrication. VTC turbochargers are particularly well suited for use on diesel engines where compactness is needed, such as on locomotives, in stationary power plants and on mobile emergency gensets. The VTC turbocharger has been designed to enable the rotor to be dismantled with its bearings as a whole, without the gas lines having to be disconnected, and to be easily removed from the gas casing. The same applies to the nozzle ring and the associated shroud ring. This greatly simplifies maintenance and enables all bearings and running parts to be inspected without the gas casings having to be dismantled. 2

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4 Benefits that add up Customers and end-users can rely on the world s premier sales and service support network. Major benefits Close contact with the diesel engine industry and a wealth of field experience enable ABB to provide expert advice on all questions connected with turbocharging. ABB application engineers are highly experienced specialists who can be called in to advise on solutions to any problems. Since ABB is a totally independent company, it can be consulted with confidence at an early stage. VTC turbochargers are of extremely robust design, dimensioned to last the useful life of the engine and undemanding in operation. High reliability is achieved through a commitment to highest manufacturing quality and close tolerances. All spare parts can be used without re-machining. All VTC turbochargers are provided with water connections at the compressor end, enabling them to be washed with water in service. As back-up in all operational questions, ABB has a special team of experienced engineers permanently on call. ABB s worldwide service network ensures fast, efficient response around the clock. 4

5 VTC 254 VTC 304 VTC 254P VTC 304P Power range The diagram shows the field of application of the various sizes of VTC turbocharger and allows a rough choice of the size of VTC turbocharger to suit a given diesel engine. The ranges of application of the VTC turbocharger sizes VTC 254 and 304 are largely the same as those of the corresponding sizes in the VTR range as the active components (turbine and compressor) of the two turbochargers are identical. For a specific application, the definitive size of turbocharger to be chosen as well as the correct choice of turbine and compressor parts (characteristic and size of blades, cross-section of the stationary vanes, size of compressor impeller and diffuser) is best decided in consultation with one of our application engineers. c [-] Compressor pressure ratio V [m 3 /s] Volume flow at MCR 5

6 Design features Casing dimensions The maximum rate of water flow shown for the gas outlet casing assumes a gas temperature of 600 C and a cooling water temperature of 65 C at the inlet. To ensure optimum mounting of the turbocharger on the engine, the air and gas casings are vertically split and can be turned relative to one another. The fixing feet attached to the gas outlet casing can also be turned to the desired mounting position. Design variants Gas inlet 1 or 2 gas inlets radial; 1, 2 or 4 gas inlets axial Air outlet 1 or 2 air outlets Air inlet Air suction branch axial or radial, or filter-silencer. By using a filter designed as a surrounding jacket, the larger dirt particles will be extracted from the incoming air. Noise is absorbed by felted segments which provide support for the whole. These silencers achieve high noise reduction for only a low pressure drop. F E G G H B A C A D Type A B C D E F G H Weight kg* Water l/s Oil l/min VTC VTC * including a filter silencer without cooling water 6

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8 ABB Turbocharging Service network CHTUS EN 2011 ABB Turbo Systems Ltd, Baden/Switzerland Aberdeen Adana Alexandria Algeciras Antwerp Baden Bangkok Barcelona Bergen Bremerhaven Brisbane Buenos Aires Busan Cairo Cape Town Casablanca Cebu Chennai Chicago Chittagong Chongqing Colombo Copenhagen Dakar Dalian Dar es Salaam Davao Delhi Dortmund Douala Dubai Dunkerque Durban Fukuoka Gdansk Genova Gothenburg Guangzhou Guatemala City Haifa Hamburg Helsinki Ho Chi Minh City Hong Kong Houston Incheon Istanbul Izmir Jakarta Jeddah Kaohsiung Karachi Kobe Lahore Las Palmas Le Havre Lima Limassol Los Angeles Lunenburg Madrid Malta Manaus Manila Mannheim Marseille Melbourne Miami Montreal Mumbai Naples New Orleans New York Onomichi Oporto Oslo Panama Perth Piraeus Qingdao Quito Reykjavik Rijeka Rio de Janeiro Rotterdam Saint Nazaire Santo Domingo Santos Seattle Shanghai Singapore Southampton St. Petersburg Suez Sunderland Surabaya Talcahuano Tallinn Telford Tianjin Tokyo Vadodara Vancouver Varna Venice Veracruz Vizag Vladivostok ABB Turbo Systems Ltd Bruggerstrasse 71 a CH-5401 Baden/Switzerland Phone: Fax: [email protected]