Straight-seven engine
A straight-seven engine or inline-seven engine is a straight engine with seven cylinders. It is more common in marine applications because these engines are usually based on a modular design, with individual heads per cylinder.
Marine engines
Straight-seven engines produced for marine usage include:
- Wärtsilä-Sulzer RTA96-C two-stroke crosshead diesel engine[1]
- Wärtsilä 32 trunk piston engines[2]
- MAN Diesel IMO two-stroke crosshead diesel engine[3]
- Burmeister & Wain 722VU37 two-stroke diesel engine (commenced 1937, used in the Danish Havmanden-class submarines
- Sulzer 7QD42 diesel engine (1939-1940, used in the Dutch O 21-class submarines).[4]
Land use
The AGCO 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
- ^ "Wärtsilä RT-flex 82T".
- ^ "Wärtsilä 32".
- ^ "MAN Diesel Marine Engine IMO Tier I Programme". Archived from the original on 2011-03-10. Retrieved 2011-03-07.
- ^ Cummins, C. Lyle Jr. (2007). Diesels for the First Stealth Weapon. Carnot Press. p. 405,464. ISBN 978-0-917308-06-2.
- ^ "7-Cylinder - AGCO Sisu Power". Archived from the original on 7 July 2011.
- ^ "AGCO SISU POWER launched new innovative 7-cylinder 9,8 litre engine". 10 September 2008. Archived from the original on 4 March 2016.
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Engine configurations for piston engines
- Atmospheric
- Axial
- Beam
- Cornish
- Rotative
- Bourke
- Cam engine
- Camless
- Compound
- Double-acting cylinder
- Flathead
- Free-piston
- Hemi
- Heron head
- Intake over exhaust
- Oscillating cylinder
- Opposed-piston
- Overhead camshaft
- Overhead valve
- Pentroof
- Rotary
- Single-acting cylinder
- Split cycle
- Swing-piston
- Uniflow
- Watt
- Wedge
| Inline / straight | |
|---|---|
| Flat / boxer | |
| V / Vee | |
| W | |
| Other |
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