marine engineering
There are two valves, one for intake and one for exhaust.
There is a camshaft that operates these valves by pushing on the valve, either directly or by means of a pushrod.
There are pistons that slide in cylinders. The pistons
4-stroke engine www.factfrog.com
Four-stroke engine: Definition from Answers.com
four-stroke cycle ( ¦för ¦strōk ′sīkəl ) ( mechanical engineering ) An internal combustion engine cycle completed in four piston
Four-stroke engine - Wikipedia, the free encyclopedia
A four-stroke engine, also known as four-cycle, is an internal combustion engine in ... an isochoric process and an isobaric compression, characterizing the. exhaust (D) stroke. ...
How Stuff Works: How Car Engines Work
Learn the basics for how the four-stroke internal combustion engine works.
What is the Difference Between a Two Stroke and Four Stroke ...
Two and four stroke engines differ in that a four stroke engine needs four steps to turn a crankshaft, while a two stroke combines...
Four-Stroke Motors: outfitter environmental stewardship in ...
Four-stroke engines offer significant environmental benefits over two-stroke designs. ... The exhaust stroke completes the combustion process. The reopening of the intake valve ...