Dugald Clark (1854–1932) designed the first two-stroke engine in 1878 and patented it in England in 1881. He received a knighthood for his work and became Sir Dugald Clark. 1854 was a common year starting on Sunday (see link for calendar). ... 1932 is a leap year starting on a Friday. ... The two-stroke cycle of an internal combustion engine differs from the more common four-stroke cycle by having only two strokes (linear movements of the piston) instead of four, although the same four operations (intake, compression, power, exhaust) still occur. ... 1878 was a common year starting on Tuesday (see link for calendar). ... A patent is a set of exclusive rights granted by a government to an inventor or applicant for a limited amount of time (normally maximum 20 years from the filing date, depending on extension). ... Royal motto: Dieu et mon droit (French: God and my right) Englands location within the UK Official language English de facto Capital London de facto Largest city London Area - Total Ranked 1st UK 130,395 km² Population - Total (2001) - Density Ranked 1st UK 49,138,831 377/km² Religion... 1881 was a common year starting on Saturday (see link for calendar). ...
Clark's engine
Clark's engine is not the common two-stroke that is used regularly today. It was much more complicated than the modern two-stroke. It used valves, like a four-stroke, and a compressor to blow a mixture of air and diesel fuel into the cylinders. These engines were used mainly in ships and locomotives and were much larger than the modern design. In the United States they were adopted by General Motors, resulting in the formation of the Detroit Diesel Company. Diesel is a product used as a fuel in a diesel engine invented by Rudolf Diesel, and perfected by Charles F. Kettering. ... GM redirects here. ...
"Forgotten Hero: The man who invented the two-stroke engine (http://the-vu.com./forgotten_hero.htm)." David Boothroyd, The VU. Accessed on January 19, 2005.
Clark's name was spelled Clerk in London, where he was a member of the Royal Society and winner of the RSA Albert Medal under this name.
The Clark cycle engine uses a similar valve arrangement to the four stroke cycle diesel engine, with both exhaust and inlet valves in the cylinder head and operated by a camshaft.
The Clark cycle was used in large engines powering railway locomotives and ships, and was adopted by General Motors in the United States to form the Detroit Diesel Company.
Clark took "Looner" observations, ate slices of "Water millions," tracked "bearfooted Indians" and was proud to serve the "Untied States." Clark's spelling is more famously imaginative — he found 27 different ways to spell the word Sioux.
When Clark's anticipated commission as a captain instead came through as second lieutenant — a misstep that still rankled years later — they never told their men and treated each other as equals — placing them among the few effective co-ceos in organizational history.
They apportioned their operating responsibilities: Clark was the better boatman and navigator, Lewis the planner and natural historian, often walking ashore far ahead of the vessels being laboriously hauled against the Missouri's current.
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