Samuel Dalziel Heron (18 May 1891 – 10 July 1963)[1][2] was a British born aerospace engineer who made major contributions to the design of piston engines. While working in Britain he carried out the first systematic research into air-cooled cylinders. In the U.S.A he contributed to the design of the Curtiss R-1454, invented the sodium cooled poppet valve and became technical director for aeronautical research for the Ethyl Corporation.
During the First World War, Heron worked at the Royal Aircraft Factory. From 1915 to 1916 he worked with Professor A.H. Gibson on the first systematic research into the design of air-cooled engine cylinders. They concluded that (1) aluminium should be used for efficient conduction (2) the cylinder head should be in one piece because conduction through metal-to-metal interfaces could not be guaranteed (3) the cylinder head should provide the shortest escape path for heat at the hottest parts across the greatest cross section.[4] Working with Major F. M. Green, they developed the RAF.8. This was a 14-cylinder 300 hp radial engine, which first ran in September 1916.[5]
On the breakup of the Royal Aircraft Factory in 1917 he joined Siddeley-Deasy. He disagreed with J.D Siddeley over the redesign of the Siddeley-Deasy Puma cylinder head and other design policies. As a result, he resigned and left for the United States in 1921.[6]
Career in the United Statesedit
Heron arrived in the United States in 1921 to work on military applications of the two-valve air-cooled cylinder. In 1934 he became Director of Aeronautical Research at the Ethyl Corporation in Detroit, a position he held until his retirement in 1946.[3]
Awardsedit
Manley Medal for 'Meritorious contributions to Aircraft Engineering' 1928
Certificate of Merit for Outstanding Fidelity and Meritorious conduct in aid of the war effort against the common enemies of the United States and its Allies in World War II (1948)
Patentsedit
19230807 GB 19230020147 19230807, Sam Dalziel Heron, "Improvements in the cooling of valves or other moving parts of internal combustion engines that are subject to high temperature", published 1924-11-07, issued 1923-08-07
Publicationsedit
Robert Schlaifer; Samuel Dalziel Heron; Harvard University. Graduate School of Business Administration. Division of Research (1950). Development of Aviation Fuels. Division of Research, Graduate School of Business Administration, Harvard University. {{cite book}}: |author3= has generic name (help)
Samuel Dalziel Heron (1955). A Discussion of the Gas Turbine and the Problems of Applying it to Ground Vehicles. Ethyl Corporation.
Samuel Dalziel Heron (1961). History of the Aircraft Piston Engine: A Brief Outline. Ethyl Corp., Research and Development Dept.
Samuel Dalziel Heron (1965). S.D. Heron: His Autobiography.
^"Sam D. Heron". Detroit Free Press. 11 July 1963. Retrieved 2 November 2016.
^"Sam Heron, Jul 1963". "United States Social Security Death Index," database, FamilySearch. Retrieved 2 November 2016.
^ abSchlachet, Daniel (12 August 2013). (PDF). San Diego Air & Space Museum. SC-10068. pp. 2–3. Archived from the original (PDF) on 30 November 2017. Retrieved 30 November 2017.{{cite web}}: CS1 maint: location (link)
Lumsden, Alec (2003). British Piston Aero Engines and Their Aircraft. The Crowood Press Ltd. ISBN978-1853102943.
External linksedit
The Sam D Heron collection at the San Diego Air & Space Museum
April 09, 2024
samuel, dalziel, heron, 1891, july, 1963, british, born, aerospace, engineer, made, major, contributions, design, piston, engines, while, working, britain, carried, first, systematic, research, into, cooled, cylinders, contributed, design, curtiss, 1454, inven. Samuel Dalziel Heron 18 May 1891 10 July 1963 1 2 was a British born aerospace engineer who made major contributions to the design of piston engines While working in Britain he carried out the first systematic research into air cooled cylinders In the U S A he contributed to the design of the Curtiss R 1454 invented the sodium cooled poppet valve and became technical director for aeronautical research for the Ethyl Corporation Samuel Dalziel HeronBorn18 May 1891Newcastle upon TyneDied10 July 1963 1963 07 11 aged 72 NationalityBritishCitizenshipAmericanEngineering careerDisciplineAircraft Engine DesignEmployer s Royal Aircraft Factory Siddeley Deasy Ethyl CorporationSignificant designHeron cylinder headSignificant advanceSodium cooled poppet valves Contents 1 Early life 2 Early career in the United Kingdom 3 Career in the United States 4 Awards 5 Patents 6 Publications 7 See also 8 References 9 Cited sources 10 External linksEarly life editSam Dalziel Heron was born on 18 May 1893 in Newcastle upon Tyne England He attended Alleyn s School in Dulwich Goldsmiths College London University and Durham University near Newcastle upon Tyne 3 Early career in the United Kingdom editDuring the First World War Heron worked at the Royal Aircraft Factory From 1915 to 1916 he worked with Professor A H Gibson on the first systematic research into the design of air cooled engine cylinders They concluded that 1 aluminium should be used for efficient conduction 2 the cylinder head should be in one piece because conduction through metal to metal interfaces could not be guaranteed 3 the cylinder head should provide the shortest escape path for heat at the hottest parts across the greatest cross section 4 Working with Major F M Green they developed the RAF 8 This was a 14 cylinder 300 hp radial engine which first ran in September 1916 5 On the breakup of the Royal Aircraft Factory in 1917 he joined Siddeley Deasy He disagreed with J D Siddeley over the redesign of the Siddeley Deasy Puma cylinder head and other design policies As a result he resigned and left for the United States in 1921 6 Career in the United States editHeron arrived in the United States in 1921 to work on military applications of the two valve air cooled cylinder In 1934 he became Director of Aeronautical Research at the Ethyl Corporation in Detroit a position he held until his retirement in 1946 3 Awards editManley Medal for Meritorious contributions to Aircraft Engineering 1928Certificate of Merit for Outstanding Fidelity and Meritorious conduct in aid of the war effort against the common enemies of the United States and its Allies in World War II 1948 Patents edit19230807 GB 19230020147 19230807 Sam Dalziel Heron Improvements in the cooling of valves or other moving parts of internal combustion engines that are subject to high temperature published 1924 11 07 issued 1923 08 07 Publications editRobert Schlaifer Samuel Dalziel Heron Harvard University Graduate School of Business Administration Division of Research 1950 Development of Aviation Fuels Division of Research Graduate School of Business Administration Harvard University a href Template Cite book html title Template Cite book cite book a author3 has generic name help Samuel Dalziel Heron 1955 A Discussion of the Gas Turbine and the Problems of Applying it to Ground Vehicles Ethyl Corporation Samuel Dalziel Heron 1961 History of the Aircraft Piston Engine A Brief Outline Ethyl Corp Research and Development Dept Samuel Dalziel Heron 1965 S D Heron His Autobiography See also editHeron cylinder headReferences edit Sam D Heron Detroit Free Press 11 July 1963 Retrieved 2 November 2016 Sam Heron Jul 1963 United States Social Security Death Index database FamilySearch Retrieved 2 November 2016 a b Schlachet Daniel 12 August 2013 Descriptive Finding Guide for Sam D Heron Personal Papers 1891 1963 PDF San Diego Air amp Space Museum SC 10068 pp 2 3 Archived from the original PDF on 30 November 2017 Retrieved 30 November 2017 a href Template Cite web html title Template Cite web cite web a CS1 maint location link Lumsden 2003 p 20 Lumsden 2003 Lumsden 2003 p 63 Cited sources editLumsden Alec 2003 British Piston Aero Engines and Their Aircraft The Crowood Press Ltd ISBN 978 1853102943 External links editThe Sam D Heron collection at the San Diego Air amp Space Museum Retrieved from https en wikipedia org w index php title Samuel Dalziel Heron amp oldid 1216704531, wikipedia, wiki, book, books, library,
