ACCELERATION AND DECELERATION FUEL CORRECTING REGULATOR FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER

摘要

PURPOSE:To provide an acceleration and deceleration fuel correcting regulator which has a good responsiveness during acceleration by constituting same such that the interior of a housing is partitioned into three chambers by two diaphargms and an opening and closing valve is provided between a fuel return passage connected to a lowest one of the chambers and the second diaphragm. CONSTITUTION:The first diaphragm 32 provided in a housing 31 is provided with a disc 33 and a spool 34 having an orifice 35 is inserted in the disc 33 and is pressed against a set section through a spring 40. Meanwhile, the second diaphragm 41 is provided with the second disc 42 to which is attached a ball 52 which constitutes an opening and closing valve 50 positioned at a returning inlet port 49 of a fuel return passage 21 below. Supercharging pressure of a suction pipe is thus introduced into an upper chamber 43 defined by these diaphragm through a suction pressure extracting passage 26 while a lower chamber 45 is connected to a fuel pump through a fuel inlet port 47 and to a float chamber through a fuel outlet port 48.