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Straight-seven engine

From Wikipedia, the free encyclopedia
Type of internal combustion engine
Straight-seven engine with firing order 1-3-5-7-2-4-6

Astraight-seven engine (also known as ainline-seven engine) is astraight engine with sevencylinders. It is more common inmarine applications because these engines are usually based on a modular design, with individual heads per cylinder.

Marine engines

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Straight-seven engines produced for marine usage include:

  • Wärtsilä-Sulzer RTA96-C two-strokecrosshead diesel engine[1]
  • Wärtsilä 32trunk piston engines[2]
  • MAN Diesel IMO two-stroke crosshead diesel engine[3]
  • Burmeister & Wain 722VU37 two-stroke diesel engine (commenced 1937, used in the DanishHavmanden-class submarines
  • Sulzer 7QD42 diesel engine (1939-1940, used in the DutchO 21-class submarines).[4]
  • English Electric7SKM diesel engine (used in some Port Jackson & Manly Steamship Company ferries)

Land use

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TheAGCO Sisu 98HD is a straight-seven diesel engine that was released in 2008.[5] Intended for farming machinery, the engine shares various components with the company's straight-six engine.[6]

References

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  1. ^"Wärtsilä RT-flex 82T".
  2. ^"Wärtsilä 32".
  3. ^"MAN Diesel Marine Engine IMO Tier I Programme". Archived fromthe original on 2011-03-10. Retrieved2011-03-07.
  4. ^Cummins, C. Lyle Jr. (2007).Diesels for the First Stealth Weapon. Carnot Press. p. 405,464.ISBN 978-0-917308-06-2.
  5. ^"7-Cylinder - AGCO Sisu Power". Archived fromthe original on 7 July 2011.
  6. ^"AGCO SISU POWER launched new innovative 7-cylinder 9,8 litre engine". 10 September 2008. Archived fromthe original on 4 March 2016.
Type
Stroke cycle
Cylinder
layout
Inline – straight
Flat – boxer
V – vee
W


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