Slow running jet for IC engine - has air fuel mixing chamber opened on closure of carburettor receiving air and fuel for engine

摘要

PCT No. PCT/FR80/00095 Sec. 371 Date Mar. 26, 1981 Sec. 102(e) Date Mar. 26, 1981 PCT Filed Jun. 16, 1980 PCT Pub. No. WO81/00281 PCT Pub. Date Feb. 5, 1981.This invention relates to a process and a jet to produce an idling vaporized mixture in an internal combustion engine. The process consists in vaporizing the mixture in two phases: one premixing phase in a turbulence chamber (10) consisting of mixing the fuel flow Cr with an auxiliary air flow Aa, which is in a lower proportion to the idling air flow Ar, to obtain a highly vaporized premixture, and a final mixing phase made in a second chamber, known as the mixing chamber (5) and consisting of mixing the premixture Mp with the slow-running air flow Ar. A needle is responsive to changes in the vacuum level and enables the flow rate of the fuel to be adjusted as a function of the engine speed.