FIELD: engines and pumps.
SUBSTANCE: in an inlet pipeline, at a small distance to an inlet valve of a cylinder there is a blowdown valve installed driven from a common cam shaft. In the end of an inlet stroke, 40-50° to the top dead centre (TDC), the inlet valve is opened. Spent gases go through the open inlet valve and reach the closed blowdown valve. Near the TDC, with remaining 10°, the blowdown valve is opened, and the combustion chamber is blown with air from an inlet header, afterwards the cylinder filling starts. Such solution makes it possible to substantially expand the angle of valves closure, this increasing the filling phase.
EFFECT: higher specific capacity of the engine with preservation of low toxicity of spent gases.
4 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| INTERNAL COMBUSTION ENGINE | 2010 |
|
RU2453717C2 |
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| SINGLE-CYCLE RECOVERY ENGINE | 2010 |
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RU2440500C2 |
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RU2215879C2 |
