Daar mocht je best een nieuw topic voor openen

Ik heb het snel nagekeken, maar de tekst is me te vaag; gaat het over een motor als in zo'n ding in een auto, of gaat 't over motoren, als in zo'n ding waar je op kan rijden? Aangezien je over het resultaat 'cycle' hebt laten staan; dat is natuurlijk zo'n rijwiel

Ik heb geen idee of de technische termen (tweetakt etc) goed vertaald zijn, dat zal je zelf in een woordenboek moeten nazoeken; dat kan ook zonder kennis van het engels.
The two-stroke cycle is the simple translation of the deflagration principle to an active engine block-system. The block-system works in two strokes. Stroke, in fact, means nothing more than one movement of the piston. Two-stroke needs two tasks (movements of the piston) before the combustion process is ready. The piston first moves up, then down. After that the process starts again. If these two tasks are carried out, than the crankshaft has turned around exactly one time. But more happens during the two tasks. Hence I define them below.
The input stroke.
The piston moves up and pushes the fresh mixture into the direction of the spark plug. At the same time, he pushes the old burned mixture out of the cylinder. If the piston comes at its highest point than the Spark plug lights the mixture.
The output stroke.
The explosion pushes the piston down. The down moving piston sucks a new mixture into the combustion chamber. When the piston comes below, the combustion process has been completed. The crankshaft has now been turned around one time.
Advantages
- If you compare the functioning of the two-stroke with those of the four-stroke you will see that two-stroke is set up much more simply.
- This makes the engine block system cheaper than four-stroke as well. There are less components necessary.
- Also, because of this, the weight of the engine block system will be less than that of the four-stroke. The two-stroke moves les strokes and will develop less jammings therefore. Because two-stroke turns around the crankshaft once by two tasks, small cylinder contents can develop a large capacity, certainly in proportion to four-stroke with equal cylinder contents which the crankshaft turns around by four tasks.
Disadvantages
Two-stroke doesn’t have flaps as a result of which it can frequently deal less economically with petrol than four-stroke. Because two-stroke does not have a separate tank for oil, which the block system must lubricate, these will have to be mixed by the petrol. Therefore, two-stroke also consumes oil, beside petrol. Nowadays this can be filled in a separate tank, after which the engine can mix the oil with the petrol in goo proportion.
Because burned oil frequently comes out through the exhaust, you can see blue smoke coming out. Two-stroke cycles are by their petrol and oil usage less environmentaly friendly than four-stroke cycles. Hence that, unfortunately, present two tasks are less and less built. Because two-stroke has more strength than the four-stroke, the block system suffers more.