But it does not have an exhaust valve in the cylinder head, it still uses ports.
The exhaust valves are there to minimise the outflow of vaporised, unburnt fuel from the transfer port to the exhaust port, as they are open at the same time.
Direct injection circumvents this issue, and also the need to scavenge.
Powervalves are also used to alter port timing, or by altering the volume of the exhaust. The Ossa uses sub exhaust chambers that extend the 'tuned length' of the expansion chamber.
In this manner they keep the 2T to what it should be, a simple engine with few moving parts.
Check out the advances that especially marine and snow mobile manufacturers made in terms of 2T development, specifically as far as fuel efficiency and pollution is concerned.
Honda was on the right track, amazing for a predominantly 4T company.
Please explain. Hoe werk dit en waord daardie pyp nie moer warm onder die seat nie
Daai pype word nie baie warm nie, dis meer vir resonansie, en die hitte behoort redelik maklik gesink te word, daar is fantastiese produkte op die mark wat dit kan doen, soos bv as jy 'n engin will sweis langs 'n rubber seel .
Dan, ek dink hulle teikenmark is die BMW meerkatte
