The Malone engine is a liquid-based engine invented by J.F.J Malone of Newcastle, England.[1][2] The engine used high temperature water as its working fluid, and was therefore also referred to as the Hot Water Engine. A US patent, describing it with Mercury or an Mercury-Lead Alloy as working fluid, for the engine was granted in 1924,[2]
Malone's first 50 hp prototype was completed in 1925, and used coal to heat high pressure water sealed inside a cylinder. Malone's second prototype, demonstrated in 1931, also produced 50 hp but in a much smaller design.[3]
In independent testing the design showed an efficiency of 27%, which exceeded the efficiency of steam engines of the day and approximately equalled the efficiency of a gasoline engine.[4]
The cycle used by the Malone engine is a modified version of the Stirling Cycle. The sealed cylinders filled with water are heated from one end to a temperature above the normal boiling point of water, but because of the limited volume within the cylinder the water can not change phase. Instead, the water expands, in the process pushing the piston inside the cylinder. The opposite end of the cylinder is cooled by the air, or alternatively a coolant fluid, and thus the cylinder compresses once more, completing the Stirling cycle.[5]
^"Science: Hot-Water Engine". Time. August 3, 1931. Archived from the original on June 12, 2008. Retrieved 2009-09-22.
^ ab"Heat engine".
^Robert Sier (2007). John Fox Jennens Malone. The Liquide Stirling Engine. L A Mair. ISBN 978-0-9526417-2-8.
^"John Malone and the Invention of Liquid-based Engines" (PDF). Los Alamos Science (21). 1993.
^Allen, P.C.; D.N. Paulson; J.C. Wheatley (January 1981). "Some heat engine cycles in which liquids can work" (PDF). PNAS. 78 (1): 31–35. Bibcode:1981PNAS...78...31A. doi:10.1073/pnas.78.1.31. PMC 318983. PMID 16592952.
The Maloneengine is a liquid-based engine invented by J.F.J Malone of Newcastle, England. The engine used high temperature water as its working fluid...
(Miller engine) In these cycles and engines the working fluid are always like liquid: Stirling cycle (Maloneengine) Heat Regenerative Cyclone Johnson...
mass production include: Acoustic cooling Air cycle Magnetic cooling Maloneengine Pulse tube Stirling cycle Thermoelectric cooling Thermionic cooling...
without carriages, as a Stirling engine. (But not yet referring Maloneengine in spite of similar function to Stirling engine) The earliest Quasiturbine design...
The Chaos Engine is a top-down run and gun video game developed by The Bitmap Brothers and published by Renegade Software in March 1993. The game is set...
the younger Malone's enlistment on 11 December 1914, they were residing in Regina, Saskatchewan. Malone gave his occupation as "gas engine mechanic". The...
Softdisk. When the contract ended, Softdisk kept ownership of both the 3D engine as well as the intellectual property of Catacomb 3-D. The company formed...
Navistar operates as the owner of International-branded trucks and diesel engines. The company also produces buses under the IC Bus brand. On July 1, 2021...
December 1911. Malone earned his Royal Aero Club certificate (No. 195) on 12 March 1912. In the Army Manoeuvres of 1912, Malone flew a twin-engined triple-screwed...
developer who frequently worked with the Bitmap Brothers, and along with Dan Malone was responsible for the visual style that became a trademark of the Bitmap...
Tifosi spectators; the 1984 British Grand Prix at Brands Hatch; the Motronic engine control units of Robert Bosch GmbH; Keith Duckworth, known for the Cosworth...
1963 and 1964 Indianapolis 500 races. Both years Malone drove cars powered by the legendary Novi engine, owned by Andy Granatelli. He had gained Granatelli's...
1986 Sacred Armour of Antiriad, The Palace Software Chris Stangroom, Dan Malone, Richard Joseph 1986 Annals of Rome Personal Software Services Data Design...
game; Bethesda developed the game using a modified version of its Creation Engine, which allowed the accommodation of multiplayer gameplay and a more detailed...
diesel engine, heavy machinery and agricultural machinery manufacturer founded in Osaka, Japan in 1912. Yanmar manufactures and sells engines used in...
power of the notorious engine. Its notable drivers during this period were Jim Hurtubise, Art Malone, and Bobby Unser. The Novi engine was last used at Indy...
Richard Kelly and produced by Flower Films. It stars Jake Gyllenhaal, Jena Malone, Maggie Gyllenhaal, Drew Barrymore, Mary McDonnell, Katharine Ross, Patrick...
Duke and RC 390 are 373.2 cc (22.77 cu in) displacement single-cylinder engine motorcycles assembled by Bajaj Auto, and KTM Asia Motorcycle Manufacturing...
Layton, Julia (2011), What's the world's largest airplane?, How Stuff Works Malone, Robert (2007), "The World's Biggest Planes", Forbes Patterson, Thom (2013)...