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X engine

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Title: X engine  
Author: World Heritage Encyclopedia
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Subject: X-24 engine, V engine, Connecting rod, United States military aero engine designations, Daimler-Benz DB 604
Collection: Piston Engine Configurations
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X engine

X-engine according to US Patent 1889583 (Eingetragen 1928)[1]
Symetrical X-Engine (90°/90°/90°/90°)
X24 engine Rolls-Royce Exe

An X engine is a piston engine comprising twinned V-block engines horizontally opposed to each other. Thus, the cylinders are arranged in four banks, driving a common crankshaft. Viewed head-on, this would appear as an X. X engines were often coupled engines derived from existing powerplants.

This configuration is extremely uncommon, primarily due its weight and complexity as compared to a radial engine. It was more compact (per number of cylinders) than a V-engine, however. Shorter crankshafts relative to an inline or V design also appealed to early 20th-century engineers like Henry Ford, given the less developed metallurgical technology of the time.[2]

Most examples of X engines are from the World War II era, and were designed for large military aircraft. The majority of these are X-24s based on existing V-12s. The following are examples of this engine type:

Weblinks

References

  1. ^ https://www.google.co.in/patents/US1889583
  2. ^ "Henry Ford's Weird Old Engines", Popular Science, August 1960: 64–67 
  3. ^ Hemmings.com. "Hemmings Auto Blogs » Blog Archive » SIA Flashback - Experimental Ford Engines". Blog.hemmings.com. Retrieved 2011-12-06. 
  4. ^ "Eli Apolzon and daughter Ruth Family Page * * * Austin, Texas - Henry Ford's X-8 engine and how it will be used to raise dollars for Autistic and other Special Needs children". Lutheransonline.com. 2011-05-10. Retrieved 2011-12-06. 
  5. ^ http://chtz-uraltrac.ru/catalog/items/206.php
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