Clerk, Sir Dugald

Clerk, Sir Dugald

▪ Scottish engineer
born March 31, 1854, Glasgow
died Nov. 12, 1932, Ewhurst, Surrey, Eng.
 British engineer who invented the two-stroke Clerk cycle internal-combustion engine, widely used on light motorcycles and other small machines.

      Clerk studied science at Andersonian College, Glasgow, and Yorkshire College, Leeds. He built a gas (hydrocarbon vapour) engine in 1876 and in 1881 patented his two-stroke engine. The principal difference between the Clerk cycle and the more common Otto cycle is that the Clerk cycle generates an ignition once every two strokes of the piston rather than once every four. Clerk also investigated extensively the properties and commercial uses of gas for heating and lighting.

      In 1916 Clerk, a director of the National Gas Engine Company, was appointed director of engineering research for the British Admiralty; he was knighted in 1917. The results of his research are published in part in his book The Gas, Petrol, and Oil Engine (vol. 1, 1909; vol. 2, 1913).

* * *


Universalium. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Dugald Clerk — Sir Dugald Clerk KBE, FRS[1] (1854, Glasgow – 1932, Ewhurst, Surrey) was a Scottish engineer who designed the world s first successful two stroke engine[2][3] in 1878[4] and patented it in England in 1881. He was a graduate of Anderson s… …   Wikipedia

  • Dugald Clark — Sir Dugald Clark (* 31. März 1854 in Glasgow; † 12. November 1932 in Ewhurst, Surrey, England) war ein Schotte, der 1878 den ersten Zweitaktmotor entwickelte und 1881 in England patentierte. Das geschah aus der Notwendigkeit heraus, das… …   Deutsch Wikipedia

  • Dugald Clerk — Sir Dugald Clerk (31 mars 1854 à Glasgow – 12 novembre 1932 à Ewhurst) était un ingénieur écossais. Il a conçu le premier moteur à deux temps en 1878 et l a breveté en Angleterre en 1881 …   Wikipédia en Français

  • Sir Walter Scott — Walter Scott Pour les articles homonymes, voir Walter Scott (homonymie) et Scott. Walter Scott …   Wikipédia en Français

  • List of Scots — is an incomplete list of notable people from Scotland. This list is incomplete; you can help by expanding it. Contents 1 Actors 2 Architects 3 Artists …   Wikipedia

  • Scottish inventions and discoveries — are objects, processes or techniques which owe their existence either partially or entirely to a person born in or descended from Scotland; in some cases, the invention s Scottishness is determined by the fact that they were brought into… …   Wikipedia

  • Albert Medal (RSA) — This article describes the Albert Medal for distinguished merit in promoting Arts, Manufactures and Commerce. For the Albert Medal for Lifesaving, see Albert Medal (lifesaving). The Albert Medal of the Royal Society of Arts (RSA) was instituted… …   Wikipedia

  • Henry Raeburn — Sir Henry Raeburn (4 March, 1756 8 July, 1823) was a Scottish portrait painter.BiographyHe was born the son of a manufacturer in Stockbridge, a former village now within the city of Edinburgh. Orphaned, he was supported by his older brother and… …   Wikipedia

  • George Croydon Marks, Baron Marks of Woolwich — Sir George Croydon Marks, Baron Marks of Woolwich (9 June 1858 24 September 1938) was a British engineer, patent agent and Liberal (later Labour) politician [Michael R. Lane, ‘ [http://www.oxforddnb.com/view/article/37737 Marks, George Croydon,… …   Wikipedia

  • Edinburgh University — Vorlage:Infobox Hochschule/Professoren fehlt Universität Edinburgh Gründung 1582 Trägerschaft staatlich …   Deutsch Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”