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|21st June 2007, 21:32||#16|
Senior - BHPian
Join Date: Oct 2005
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A single company choosing to develop it's own type of engine which no one else uses is always going to have trouble considering the huge investments it requires. Point being that when multiple companies make investments and progress with their suppliers inadvertently some of the benefits get passed onto other companies too, so in effect everyone benefits from it.
|2nd January 2009, 18:24||#17|
Join Date: Dec 2005
Thanked: 3 Times
Wanted to start a post on Wankel engine use on Mazda RX7 and 8. Did a search and came across this. Basically, why many of the concept engines have failed is because they are not simple - simple to manufacture and maintain. Before the ICE, steam engines were quite popular but, the IC engines have almost replaced them all over the world (except in huge power plants, and nuclear one is still steam turbines).
You can see from the fact that the gas turbines, although difficult to scale down and rpm bandwidth is quite small as compared to reciprocating engines, they are getting quite popular. And in smaller cars, they are doing the power boosting due to them being very simple and huge power to weight ratio.
Of all the concept engines, Wankel engines seemed most promising and might have become poplular, if Mazda had tried them on smaller cars rather than on sports car, inspite of their inherent problem of seals.
NEVIS egine, basically being the reciprocating engine, the inherent problems of other engines remains - material, lubrication and combustion.
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