V5 engine

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A V5 engine is a five-cylinder piston engine where the cylinders share a common crankshaft and are arranged in a V configuration.

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Even by contrast to the fairly rare straight-five engine, V5 engine designs are very uncommon. The first production V5 was the 1997–2007 Volkswagen Group VR5 engine, which is arguably not a true V5 engine, but a kind of hybrid in-line straight-five engine. However, Honda produced a true V5 motorcycle racing engine.

Automobiles

General Motors

In the early 1980s, Oldsmobile developed a prototype 2.5 L (153 cu in) V5 diesel engine, however it never reached production stages and the project was subsequently abandoned. [1] The engine is based on the Oldsmobile V6 diesel engine with the fuel injection pump in the location of the "missing" sixth cylinder. [2] A prototype engine is on display at the RE Olds Museum in Lansing, Michigan.

Volkswagen Group

The only V5 automobile engine to reach production was the 2.3 L (140 cu in) "VR5" engine manufactured by Volkswagen from 1997 to 2006. Based on Volkswagen's VR6 engine, the VR5 was a narrow-angle engine with staggered cylinders (three cylinders on one bank and two on the other) sharing a single cylinder head. [3] As per the VR6 engine, the angle between the banks was 15 degrees. Initial versions used 2 valves per cylinder, however, an update in 2000 resulted in a total of 4 valves per cylinder and the addition of variable valve timing.

Motorcycles

Honda

The Honda RC211V, a MotoGP racing motorcycle which competed in the 2002–2006 seasons, used a V5 engine. [4] The transversely-mounted 990 cc (60 cu in) engine had three cylinders at the front, two cylinders at the rear and a V-angle of 75.5 degrees. The engine used 4 valves per cylinder.

BSA

In the last days of the BSA motorcycle manufacturer, the factory design team produced plans for a modular range of four engines, all using a 200cc cylinder. (It was planned to increase the cylinder capacity to up to 250cc in due course). The range, which never went further than the drawing board, comprised:

(The company avoided the perhaps obvious 800cc straight-four option, to avoid direct competition with the major Japanese factories that already dominated the market with such machines). [5]

See also

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<span class="mw-page-title-main">U engine</span>

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<span class="mw-page-title-main">Multi-valve</span> Type of car engine

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<span class="mw-page-title-main">Honda RC211V</span> Type of motorcycle

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The VR5 engines are a family of petroleum fuelled Internal combustion engines developed by the Volkswagen Group and produced from 1997 to 2006. They are derived from the VR6 engine family, also developed by Volkswagen, but with one fewer cylinders. The VR5 is highly compact, thanks to the narrower angle of 15° and a displacement of 2,324 cc. The VR5 was the first production block to use five cylinders in a VR design with a 15-degree angle.

<span class="mw-page-title-main">Bridgestone (motorcycle)</span> Brand of motorcycles produced by the Japanese tire manufacturer between 1952 and 1970

Bridgestone motorcycles were a division of the Bridgestone Tire Co. of Kyōbashi, Tokyo, Japan that produced mopeds and motorcycles from 1952 to 1970. Initially producing power assisted bicycles, the division moved on to producing mopeds and then motorcycles. The motorcycles were technologically advanced and powered by two-stroke engines. The high technical specification resulted in the machines being more expensive compared to other manufacturers models. Production was stopped in 1970 to protect the supply of tyres to other manufacturers.

References

  1. "CC Weird Engines Outtake: Oldsmobile V5 Diesel–Grasping at Straws". www.curbsideclassic.com. January 20, 2015. Retrieved 17 June 2018.
  2. "Oldsmobile 2.5 Litre V5 Diesel". www.a350diesel.tripod.com. Retrieved 13 December 2019.
  3. Volkswagen Self-Study Programme. "The 2.3-ltr. V5 Engine – Design and Function" (PDF). www.volkspage.net. Archived from the original (PDF) on 8 May 2018.
  4. "Exclusive – We Ride Honda's RC211V GP bike". www.motorcyclistonline.com. February 24, 2009. Retrieved 13 December 2019.
  5. "Bike" magazine (issue date to follow)