VALVE AND FUEL PULSE FORMATION METHOD Russian patent published in 2008 - IPC F02M59/46 F16K31/383 

FIELD: engines and pumps.

SUBSTANCE: fluid medium valve incorporates a body with an inlet and outlet, a movable valve element to rest against the valve seat for closing the valve, a control chamber formed on the movable element side at a distance from the valve seat and making the valve working space communicating, via a throttling channel, with the inlet, and means allowing the fluid medium to flow out from the control chamber to open the valve and forced, further on, to the movable element side other part communicating with the outlet, the valve movable element moving from the valve seat. The valve movable element is arranged to move along the valve element fixed in the valve body. For this, the valve elements are furnished with tubular sliding surface and a complementary circular sliding edge of appropriate diameter mating the said tubular surface and forms a sealing increasing the valve working volume. The valve working volume is additionally limited by the second sealing formed by the valve elements with the second tubular sliding surface with the diameter different from that of the first sliding surface, and the second complementary circular edge with, certainly, a different diameter and mating the second surface. The valve seat is arranged between the smaller diameter sliding surface and the greater diameter sliding surface if seen in axial direction. The method of forming the fluid medium pulse by fast opening and/or closing the valve is also proposed.

EFFECT: high-efficiency valve operation.

16 cl, 5 dwg