V14 engine

A V14 engine is a V engine with 14 cylinders mounted on the crankcase in two banks of seven cylinders. A relatively uncommon cylinder configuration, the V14 layout has been used on large medium-speed diesel engines used for power generation and marine propulsion.

Marine use

MAN B&W offers V14 layout for all its current medium-speed diesel engines except V28-33D and L58-64, with output ranging from 7,000 to 16,800 kW (9,400 to 22,500 hp).^[1] MAN V14 engines have been installed for example on SuperStar Virgo and Norwegian Spirit, both of which are powered by four 14V48/60 generating sets producing 14,700 kW (19,700 hp) each.^[2] However, other major manufacturers do not normally offer medium-speed engines in V14 configuration. Wärtsilä has only recently begun to offer V14 versions of its latest engine models, 31 and 46DF.^[3]

In the past V14 engines have also been offered by other manufacturers. In 1982–1987 nineteen SA-15 class arctic cargo ships were built with two 14-cylinder Wärtsilä-Sulzer 14ZV40/48 engines producing 7,700 kW (10,300 hp).^[4] SEMT Pielstick, nowadays part of MAN B&W, also produced four-stroke engines with 14 cylinders in V-configuration (14PC2^[5] and 14PC4^[6]). They were used for example on RFA Bayleaf, a Leaf-class support tanker of the Royal Fleet Auxiliary.

Automotive use

V14 engines have not been used in production cars, although a 4.5 L (275 cu in) 14-cylinder engine was, according to chief designer Gordon Murray, considered for the McLaren F1.^[7]

References

1. Medium Speed Engine Project Planning Guides. MAN Diesel & Turbo. Retrieved 2011-10-27.
2. Norwegian Spirit. SP Database. Retrieved 2011-10-27.
3. Engines & Generating Sets. Wärtsilä. Retrieved 2015-06-07.
4. SA-15: a 14 ship series of icebreaking multipurpose cargo ships from Finland for Soviet Arctic Service. The Motor Ship, Volume 64, Issue 753, April 1983. Pages 28-32.
5. "M/S Finnfellow". Archived from the original on 2012-05-25.. Fakta om Fartyg. Retrieved 2011-10-27.
6. New Golden Bridge V. Weidong Ferry. Retrieved 2011-10-27.
7. Translated from original Japanese article: "A car dear to my mind – Gordon Murray on the Honda NSX".