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{{Short description|Engine}}
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The '''Hercules DFXE''' is an American [[Diesel engine|diesel]] [[truck]] engine.
{{Infobox engine
| name = Hercules DFXE
| image = Diamond T M20.jpg
| caption = The DFXE powered the [[M19 tank transporter|Diamond T Models 980 and 981]] tank transporter
| manufacturer = [[Hercules Engine Company]]
| aka =
| production =
| predecessor =
| successor =
| configuration = [[Straight-6]]
| displacement = {{cvt|855|cuin|L|3}}
| bore = {{cvt|5+5/8|in|mm|0}}
| stroke = {{cvt|6|in|mm|0}}
| block =
| head =
| valvetrain =
| timing =
| compression = 14.8:1
| operating principle =
| supercharger =
| turbocharger =
| turboboostpressure =
| fuelsystem =
| management =
| fueltype = [[Diesel fuel|Diesel]]
| oilsystem =
| coolingsystem =
| idle =
| redline =
| power = {{cvt|201|bhp|kW}} at 1600 rpm
| specpower =
| torque = {{ubl|{{cvt|685|ft.lbf|Nm}} at 1150 rpm|{{cvt|660|ft.lbf|Nm}} at 1600 rpm}}
| length =
| width =
| height =
| diameter =
| weight =
| emissions level =
| emissions control =
}}
⚫
The '''Hercules DFXE''' was an American [[Diesel engine|diesel]] [[truck]] engine produced by the [[Hercules Engine Company]].


Part of the [[Hercules Engine Company|Hercules]] DFX series,<ref>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 [https://ia801207.us.archive.org/10/items/TM55-1031/TM55-1031.pdf here], retrieved 7 May 2018)</ref> the DFXE is a [[Naturally aspirated engine|naturally aspirated]] [[Overhead valve engine|overhead valve]] [[Straight six engine|inline 6-cylinder]]. With a bore of {{convert|5.375|in|mm|abbr=on}} and a stroke of {{convert|6|in|mm|abbr=on}}, <ref>TM55-1031, p.4.</ref> for a [[Engine displacement|displacement]] of {{convert|895|cid|cc|abbr=on}}, it developed {{convert|185|hp|kW|abbr=on|lk=on}} at 1,600&nbsp;[[Revolutions per minute|rpm]] and {{convert|665|lbfft|0|abbr=on}} of [[torque]] at 1200&nbsp;rpm. Designed for a British requirement, this was one of the few diesel engines used in US tactical trucks.{{sfnp|Doyle|2003|pp=230-231}}{{sfnp|TM 9-768|1944|pages=136-140}}
Part of the Hercules DFX series, the DFXE is a [[Naturally aspirated engine|naturally aspirated]], [[Direct injection diesel|direct injection]],[[Overhead valve engine|overhead valve]], [[Straight-six engine|inline six-cylinder]] engine.<ref>TM55-1031, p.5.</ref><ref>Ware, p 29.</ref> The engine had a [[Engine displacement|displacement]] of {{cvt|855|cuin|L|3}}, with a bore of {{cvt|5+5/8|in|mm|0}}, a stroke of {{convert|6|in|mm|abbr=on}} and a [[compression ratio]] of 14.8:1.<ref>TM55-1031, p.5.</ref><ref>Ware, p 29.</ref> It developed {{cvt|201|bhp|kW}} at 1,600&nbsp;[[Revolutions per minute|rpm]] and a maximum {{cvt|685|ft.lbf|Nm}} of [[torque]] at 1150&nbsp;rpm; {{cvt|660|ft.lbf|Nm}} at 1600&nbsp;rpm.<ref>TM 9-1768A, p 4.</ref><ref>Ware, p 46.</ref>


The DFXE was designed to requirements of the [[British Purchasing Commission]] for use in the [[M19 tank transporter|Diamond T Model 980]] tank transporter. As the Diamond T Model 980 was later adopted by the US, the DFXE was one of the few diesel engines used by US tactical trucks during World War II.{{sfnp|Doyle|2003|pp=230-231}}{{sfnp|TM 9-768|1944|pp=136-140}}
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The engine was used in upright or horizontal configurations.<ref>TM55-1031, p.5.</ref>


⚫
The engine was used in upright or horizontal configurations.<ref>TM55-1031, p.5.</ref>
It was used in the [[M19 Tank Transporter]] in World War Two, the [[Le Tourneau]] [[Le Tourneau Model B29 Tournapull|Model B29 Tournapull]] [[earthmover]] (introduced in 1945),<ref>Orlemann, Eric R. ''LeTourneau Earthmovers'' (MBI Publishing Co, 2001), p.33 (available [https://books.google.ca/books?id=4kYdFoYgYg8C&pg=PA33&lpg=PA33&dq=Hercules+DFXE&source=bl&ots=00UP_CweQZ&sig=DzlslUSpV9DvM42nXLGLn5R0mns&hl=en&sa=X&ved=0ahUKEwishLjdv_TaAhXBx4MKHZunCvQ4ChDoAQhLMAc#v=onepage&q=Hercules%20DFXE&f=false here]; retrieved 7 May 2018)</ref> and the Oliver OC-18 [[Continuous track|crawler tractor]] (introduced in 1952),<ref>Wendel, C. H. ''Standard Catalog of Farm Tractors, 1890-1980'' (KP Books, 2005), pp.601-602. (available [https://books.google.ca/books?id=_mE8TIi7AKIC&pg=PA602&lpg=PA602&dq=Hercules+DFXE&source=bl&ots=MIz89LaBAs&sig=2mdhiE4Rn6A7yvKxorob8ZWClCo&hl=en&sa=X&ved=0ahUKEwishLjdv_TaAhXBx4MKHZunCvQ4ChDoAQg8MAQ#v=onepage&q=Hercules%20DFXE&f=false here], retrieved 7 May 2018); [http://www.calolivercletrac.org/Oliver_Production_Guide.pdf Oliver tractor production guide] (retrieved 9 May 2018)</ref> among others.

It was used in the [[M19 tank transporter|Diamond T Models 980 and 981]] trucks in World War Two, the [[Le Tourneau Model B29 Tournapull]] [[earthmover]] (introduced in 1945),<ref>Orlemann, p 33.</ref> and the Oliver OC-18 [[Continuous track|crawler tractor]] (introduced in 1952),<ref>Wendel, pp 601-602.</ref> among others.


== Notes ==
== Notes ==
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== Sources ==
== Sources ==
* Berndt, Thomas. ''Standard Catalog of U.S. Military Vehicles 1940–1965''. Iola, WI: Krause Publications, 1993.
* Berndt, Thomas. ''Standard Catalog of U.S. Military Vehicles 1940–1965''. Iola, WI: Krause Publications, 1993.
⚫
* {{cite book|last=Doyle|first=David|title=Standard catalog of U.S. Military Vehicles|year=2003|publisher=[[Krause Publications]]|isbn=0-87349-508-X}}
⚫
* 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.
⚫
* Orlemann, Eric R. [https://books.google.com/books?id=4kYdFoYgYg8C&dq=Hercules+DFXE&pg=PA33 ''LeTourneau Earthmovers'']. St Paul, Minnesota: MBI Publishing Co, 2001.
* {{cite book
* U.S. Department of the Army. [https://archive.org/details/TM9-1768A/page/n1/mode/2up?q=Hercules+DFXE ''TM 9-1768A: Tractor Truck M20, Component Of 45-Ton Tank Transporter, Truck-Trailer M19, Engine, Clutch, Fuel System, And Cooling System'']. Washington, DC: United States Government Printing Office, 22 June 1945.
|url=https://www.scribd.com/doc/149374612/Tm-9-768-DIAMOND-T-980-AND-981-M9-TRAILER
* {{cite book |author=U.S. Department of the Army |url=https://www.scribd.com/doc/149374612/Tm-9-768-DIAMOND-T-980-AND-981-M9-TRAILER |title=TM 9-768: 45-ton Tank Transporter Truck-trailer M19 |location=Washington, DC |publisher=United States Government Printing Office |date=25 October 1944 |ref={{sfnref|TM 9-768|1944}} }}
|title=TM 9-768 45-ton Tank Transporter Truck-trailer M19
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* U.S. Department of the Army. [https://archive.org/details/TM55-1031 ''TM55-1031: Engines, Diesel, Hercules: Series DFXB, DFXC, DFXD, and DFXE'']. Washington, DC: United States Government Printing Office, November 1944.
|publisher=US Dept. Of the Army
* Ware, Pat. ''The Diamond T Models 980, 981: Britain's second-generation tank transporter''. Yalding, Kent: Kelsey Media, 2020.
|date=25 Oct 1944
⚫
* Wendel, C. H. [https://books.google.com/books?id=_mE8TIi7AKIC&dq=Hercules+DFXE&pg=PA602 ''Standard Catalog of Farm Tractors, 1890-1980'']. Iola, WI: KP Books, 2005.
|ref={{harvid|TM 9-768|1944}}
|accessdate=14 September 2015}}
⚫
* {{cite book|last=Doyle|first=David|title=Standard catalog of U.S. Military Vehicles|year=2003|publisher=[[Krause Publications]]|isbn=0-87349-508-X|pages=178–188, 200–204|authorlink=David Doyle (writer)}}
⚫
* 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.


[[Category: Diesel engines]]
[[Category: Diesel engines]]
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[[Category: Tractors]]
[[Category: Tractors]]
[[Category:Engineering vehicles]]
[[Category:Engineering vehicles]]
[[Category:Inline-six engines]]
[[Category:Straight-six engines]]

Latest revision as of 04:11, 13 August 2024

Hercules DFXE
The DFXE powered the Diamond T Models 980 and 981 tank transporter
Overview
ManufacturerHercules Engine Company
Layout
ConfigurationStraight-6
Displacement855 cu in (14.011 L)
Cylinder bore5+5⁄8 in (143 mm)
Piston stroke6 in (152 mm)
Compression ratio14.8:1
Combustion
Fuel typeDiesel
Output
Power output201 bhp (150 kW) at 1600 rpm
Torque output
  • 685 ft⋅lbf (929 N⋅m) at 1150 rpm
  • 660 ft⋅lbf (890 N⋅m) at 1600 rpm

The Hercules DFXE was an American diesel truck engine produced by the Hercules Engine Company.

Part of the Hercules DFX series, the DFXE is a naturally aspirated, direct injection,overhead valve, inline six-cylinder engine.[1][2] The engine had a displacement of 855 cu in (14.011 L), with a bore of 5+5⁄8 in (143 mm), a stroke of 6 in (150 mm) and a compression ratio of 14.8:1.[3][4] It developed 201 bhp (150 kW) at 1,600 rpm and a maximum 685 ft⋅lbf (929 N⋅m) of torque at 1150 rpm; 660 ft⋅lbf (890 N⋅m) at 1600 rpm.[5][6]

The DFXE was designed to requirements of the British Purchasing Commission for use in the Diamond T Model 980 tank transporter. As the Diamond T Model 980 was later adopted by the US, the DFXE was one of the few diesel engines used by US tactical trucks during World War II.[7][8]

The engine was used in upright or horizontal configurations.[9]

It was used in the Diamond T Models 980 and 981 trucks in World War Two, the Le Tourneau Model B29 Tournapull earthmover (introduced in 1945),[10] and the Oliver OC-18 crawler tractor (introduced in 1952),[11] among others.

Notes

[edit]
  1. ^ TM55-1031, p.5.
  2. ^ Ware, p 29.
  3. ^ TM55-1031, p.5.
  4. ^ Ware, p 29.
  5. ^ TM 9-1768A, p 4.
  6. ^ Ware, p 46.
  7. ^ Doyle (2003), pp. 230–231.
  8. ^ TM 9-768 (1944), pp. 136–140.
  9. ^ TM55-1031, p.5.
  10. ^ Orlemann, p 33.
  11. ^ Wendel, pp 601-602.

Sources

[edit]
  • Berndt, Thomas. Standard Catalog of U.S. Military Vehicles 1940–1965. Iola, WI: Krause Publications, 1993.
  • Doyle, David (2003). Standard catalog of U.S. Military Vehicles. Krause Publications. ISBN 0-87349-508-X.
  • Orlemann, Eric R. LeTourneau Earthmovers. St Paul, Minnesota: MBI Publishing Co, 2001.
  • U.S. Department of the Army. TM 9-1768A: Tractor Truck M20, Component Of 45-Ton Tank Transporter, Truck-Trailer M19, Engine, Clutch, Fuel System, And Cooling System. Washington, DC: United States Government Printing Office, 22 June 1945.
  • U.S. Department of the Army (25 October 1944). TM 9-768: 45-ton Tank Transporter Truck-trailer M19. Washington, DC: United States Government Printing Office.
  • 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.
  • Ware, Pat. The Diamond T Models 980, 981: Britain's second-generation tank transporter. Yalding, Kent: Kelsey Media, 2020.
  • Wendel, C. H. Standard Catalog of Farm Tractors, 1890-1980. Iola, WI: KP Books, 2005.
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