LIQUID JET NOZZLE

PURPOSE:To obtain a nozzle not lowered in injection capacity even when an injection amount is altered and controlled to a large extent by providing a reduced pressure flow path supplying the liquid from a supply path to a revolving chamber while making the pressure thereof than the supply pressure in the supply path to a leading end part. CONSTITUTION:The leading end part 3a of a flow path forming member 3 is allowed to enter the conical revolving chamber-forming hole 2a of a nozzle forming body 2 and pressed to the nozzle forming body 2 by the clamping force of a supply and discharge member 5 to form a revolving chamber R. The kerosene supplied from a liquid supply pipe 6 under pressure through a filter 4 and the liquid supply path 8 formed by the liquid supply and discharge member 5 is supplied to the revolving chamber R under pressure by slitted supply paths 9. The kerosene from the supply paths 9 are revolved in a spiral state within the revolving chamber R to be injected from the jet orifice 10 of the nozzle forming body 2 in a mist form. As a result, an injection amount can widely be controlled.