Kurniots - The reed valve is a valve component contained in the 2-stroke engine. On motorcycles with 2-stroke engine, the opening and closing of new gas inflow channel is regulated by an instrument called a reed valve.
Reed valve is very sensitive to external influences. Reed valve is used in two-cycle engine. But not all two-cycle engine using this valve. such as the Vespa motorcycle engines do not use the valve Reed Valve, but the kind lain.katup serves to open and close the gas line gasoline from carburetor to the crank chamber. Reed valve inlet attached to a motorcycle. Its location is after the carburetor when viewed from the direction of the new incoming gas.
How it Works Reed Valve
For the purposes of modification, this valve can be adjusted, depending on needs. However, the adjustment of the valve harmonica error can cause a gas leak. and can cause power ngempos.
Reed valve works by changes in pressure in the crank chamber. This occurs when the piston moves upward from BDC to TDC reed valve open because of the vacuum in the crank chamber. New gas into the crank chamber. If the piston moves down from TDC to BDC reed valve closes. And gas into the cylinder.
- Piston down (TDC to BDC)
When the piston moves downward, in the bathtub crank area under pressure. Consequently mememiliki inlet pressure higher than the outside air pressure. This condition makes the reed valve is closed. There is no incoming gas mixture, because there is no suction process in the inlet.
- Piston up (BDC to TDC)
When the piston rises, the area experienced a crank like a vacuum. This is due to the enlargement of the volume under the piston area. This vacuum makes the valve reed valve open and interested in new gas mixture is sucked in through the inlet, leading to crank tub.
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