SPRAYER OF NOZZLE Russian patent published in 1994 - IPC

FIELD: engine engineering. SUBSTANCE: sprayer of the nozzle has case with nozzle opening, needle valve whose carrying part is provided with a bushing having conical surface which interacts with a closing surface of the case and is provided with tangential passages coupling under-needle chamber with a swirling chamber. A space between the bushing and a guide part of the valve is filled with an elastomer. Cone angles of the closing surface of the case and the closing surface of the valve with the bushing are selected to provide a distance between outer edge of the closing surface of the valve and the closing surface of the case equal to 1/3-1/2 of maximum stroke of the needle valve at initial moment of abutting outer edge of the bushing against closing surface of the case. EFFECT: improved design. 2 cl, 2 dwg