FUEL FEED STATION Russian patent published in 2011 - IPC F02M9/08 

FIELD: engines and pumps.

SUBSTANCE: fuel feed station for two-stroke internal combustion engine with crankcase scavenging, controlled with multi-level scavenging includes housing and two parallel channels passing through the housing, and namely the first channel for fuel-and-air mixture and the second channel for additional air, dividing plate passing in the plane between the above channels and located both upstream and downstream of butterfly valve, and at least one throttle valve with throttle (disc) rotating in the housing. Throttle has rotation axis combined with plane of baffle plate, downstream side, upstream side and protruding section passing through the throttle along rotation axis at least on downstream side of the throttle. Housing includes channels of fuel feed in idle mode, which are open in the first channel near regulating/throttle valve. Edge of dividing plate or sealing element on dividing plate contacts or almost contacts the protruding section at least on downstream side of throttle, thus providing the sealing between two channels in all positions of the throttle, which is enough effective to prevent any sufficient passage of fuel from the first channel to the second channel on downstream side of throttle.

EFFECT: invention allows reducing resistance for inflow of fuel-and-air mixture, which is induced with obstacle.

16 cl, 4 dwg