| 摘要 |
<p>An electronically controlled fuel injector, comprising a plunger pump (800), a circulating passage (140) for circulating the fuel pressurized in the initial area of a force-feed process, a valve element (820) for closing the circulating passage in the rear area of the force-feed process, an inlet orifice nozzle (60) allowing to pass the fuel pressurized in the rear area of the force-feed process, an outlet orifice nozzle (70) for circulating a part of the fuel passed through the inlet orifice nozzle, an injection nozzle (1000) injecting the fuel by an amount equivalent to a difference between the amount of the fuel passed through the inlet orifice nozzle and the amount of the fuel passed through the outlet orifice nozzle, and control means (80, 90) controlling the plunger pump according to the cycle of an engine, whereby the size of the fuel injector can be reduced, fine control thereof is enabled and, particularly, the amount of injection at high temperatures can be controlled with a high accuracy.</p> |
