Os motores Lycoming têm a árvore de cames acima do virabrequim, e os motores da Continental têm a came abaixo do virabrequim. Isso parece manter as câmeras Conti melhor lubrificadas e, portanto, menos suscetíveis à corrosão.
Inspirado por uma discussão no bate-papo .
A maioria dos pistão GA é equipada com motores Lycoming ou Continental.
Os projetos de motores usados por ambos os fabricantes são amplamente semelhantes (4-ciclo, horizontalmente opostos, movidos a gasolina, refrigerado a ar), e ambos estão geralmente disponíveis com carburadores ou injeção de combustível, mas eu sei que eles não são " produtos idênticos ".
Quais são algumas das diferenças entre os designs usados pelos dois fabricantes e quais as implicações práticas que essas escolhas têm para os pilotos?
Os motores Lycoming têm a árvore de cames acima do virabrequim, e os motores da Continental têm a came abaixo do virabrequim. Isso parece manter as câmeras Conti melhor lubrificadas e, portanto, menos suscetíveis à corrosão.
- The larger Continentals have the alternator belt-driven off the back of the engine.
- And Continental still builds the four-cylinder O-200, and a lightweight version of that engine, too.
- Continentals cost more money.
- Continental parts cost more money.
- Continentals normally have more valve trouble than Lycomings.
- Lycomings have better valves and guides.
- A Lycoming usually has its carb mounted to the oil sump, either the bottom or rear, and feeds the cylinders via tubes cast into the sump and connecting tubing from there to the intakes. The heat of the oil wicks into the carb body and reduces the likelihood of carb ice.
- Continentals mount the carb on a separate intake manifold that doesn't transfer that heat, so pilots trained on Lycs can get bitten by Continentals if they haven't been trained in the detection and management of carb ice.
- The fuel injection systems used by Continental and Lycoming are somewhat different.
- Continental numbers their cylinders back-to-front.
- Lycoming numbers them front-to-back, and the staggering of the cylinders is opposite between the two.
- Continentals, at least the smaller ones, have the right mag firing at the top plugs and the left firing the bottom.
- One of Lyc's mags will fire the top plugs on one side and the bottom plugs on the other, with the other mag firing the rest.
Really, they just sorta look the same, with cooling fins on them and a propeller on the front and pistons inside that go up and down, and they both turn lots of money into smoke, but that's about it. If I was to buy one, it would be a Lycoming.
Fonte: Quora
Tags piston-engine