rotary engines
#11
08-01-2007 | 01:51 AM
Joined: Aug 2007
Posts: 17
RE: rotary engines
ok get ready to read...
a rotary engine does not have any pistons or reciprocating parts, so theres no head. a normal RX7 12A or 13B engine has 2 triangular rotors that dont even touch the housibgs. in sequence, it is front housing, center housing, rear, front, center, and then rear again. the engine is usually ported for easier entrance and exit of a/f mixture. it is only 2 little ports like 2 little holes that let the a/f mixture enter and exit. it is still four-stroke engine but the timing of spark plugs are different. there is the leading and trailing spark plug, 2 per rotor. the leading plug is actually the last one to touch the a/f mixture but the first to ignite. one spark plug ignites twice,i think the trailing i dont remember, but it is done to improve efficiency of a perfect combustion. rotary engines also smaller and lighter than normal I-4 engines, so that is why the RX8 is able to have a perfect 50/50 weight distribution. the main disadvantage of the rotary engine, though, is that it heats up quicker and that it is harder to maintain emissions legality...
there is more but now i got tired of writing...lol
a rotary engine does not have any pistons or reciprocating parts, so theres no head. a normal RX7 12A or 13B engine has 2 triangular rotors that dont even touch the housibgs. in sequence, it is front housing, center housing, rear, front, center, and then rear again. the engine is usually ported for easier entrance and exit of a/f mixture. it is only 2 little ports like 2 little holes that let the a/f mixture enter and exit. it is still four-stroke engine but the timing of spark plugs are different. there is the leading and trailing spark plug, 2 per rotor. the leading plug is actually the last one to touch the a/f mixture but the first to ignite. one spark plug ignites twice,i think the trailing i dont remember, but it is done to improve efficiency of a perfect combustion. rotary engines also smaller and lighter than normal I-4 engines, so that is why the RX8 is able to have a perfect 50/50 weight distribution. the main disadvantage of the rotary engine, though, is that it heats up quicker and that it is harder to maintain emissions legality...
there is more but now i got tired of writing...lol
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