| 摘要 |
<p>An intake manifold system including an intake manifold (160) and a compressed natural gas (CNG) fuel injector (10) located between an inlet (161) and an outlet (162) of the intake manifold (160). The CNG fuel injector (10) includes a housing, an inlet (12), an outlet (14), a seat, a closure member (68), and a nozzle (100). In a preferred embodiment, the inlet (12) and outlet (14) communicate a flow of gaseous fuel regulated by the closure member (18). The gaseous fuel passes through the seat, which is secured to a rim surface of a retainer portion of the nozzle (100), and into a flow passage that further communicates the flow of gaseous fuel into one or more flow channels. The orientation of the flow channels within the nozzle (100) greatly affects the discharge pattern and mixing characteristics of the gaseous fuel within an intake manifold (160). A method of metering gaseous fuel in an intake manifold having a gaseous fuel supply coupled to a fuel injector is also described.</p> |
