Hercules DFXE

The Hercules DFXE is an American diesel truck engine.

Part of the Hercules DFX series,[1] the DFXE is a naturally aspirated overhead valve inline six-cylinder. With a bore of 5.375 in (136.5 mm) and a stroke of 6 in (150 mm), [2] for a displacement of 895 cu in (14,670 cc), it developed 185 hp (138 kW) at 1,600 rpm and 665 lbf⋅ft (902 N⋅m) of torque at 1200 rpm. Designed for a British requirement, this was one of the few diesel engines used in US tactical trucks.[3][4]

The engine was used in upright or horizontal configurations.[5]

It was used in the M19 Tank Transporter in World War Two, the Le Tourneau Model B29 Tournapull earthmover (introduced in 1945),[6] and the Oliver OC-18 crawler tractor (introduced in 1952),[7] among others.

Notes
  1. U.S. Department of the Army. TM55-1031 Engines, Diesel, Hercules: Series DFXB, DFXC, DFXD, and DFXE (United States Government Printing Office, November 1944), p.5. (PDF here, retrieved 7 May 2018)
  2. TM55-1031, p. 4.
  3. Doyle (2003), pp. 230-231.
  4. TM 9-768 (1944), pp. 136-140.
  5. TM55-1031, p.5.
  6. Orlemann, Eric R. LeTourneau Earthmovers (MBI Publishing Co, 2001), p. 33 (available here; retrieved 7 May 2018)
  7. Wendel, C. H. Standard Catalog of Farm Tractors, 1890-1980 (KP Books, 2005), pp. 601-602. (available here, retrieved 7 May 2018); Oliver tractor production guide (retrieved 9 May 2018)

Sources
  • Berndt, Thomas. Standard Catalog of U.S. Military Vehicles 1940–1965. Iola, WI: Krause Publications, 1993.
  • U.S. Department of the Army. TM55-1031 Engines, Diesel, Hercules: Series DFXB, DFXC, DFXD, and DFXE Washington, DC: United States Government Printing Office, November 1944.
  • TM 9-768 45-ton Tank Transporter Truck-trailer M19. US Dept. Of the Army. 25 Oct 1944. Retrieved 14 September 2015.
  • Doyle, David (2003). Standard catalog of U.S. Military Vehicles. Krause Publications. pp. 178–188, 200–204. ISBN 0-87349-508-X.
  • Orlemann, Eric R. LeTourneau Earthmovers. St Paul, Minnesota: MBI Publishing Co, 2001.
  • Wendel, C. H. Standard Catalog of Farm Tractors, 1890-1980. Iola, WI: KP Books, 2005.
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