| 摘要 |
Constrictions (7, 20) are formed in the air intake pipe (3, 6) and in the fuel supply pipe (14) which supplies fuel under constant pressure to a fuel injection device (9). A differential pressure valve (23) compares the pressure differences at the two constrictions. A duct (35) leading from a constant pressure source has an outlet (34) controlled (32) by the differential pressure valve. Upstream in the duct is a throttle (41). The control pressure developed at the throttle operates a regulator (45) which adjusts the flow of fuel or air. |
