发明授权
US06935580B2 Valve assembly having multiple rate shaping capabilities and fuel injector using same 有权
具有多个速率成形能力的阀组件和使用其的燃料喷射器

Valve assembly having multiple rate shaping capabilities and fuel injector using same
摘要:
Engineers have determined that the performance of fuel injectors, including those used in common rail fuel injection systems, can be increased, and undesirable emissions reduced, by controlling the mass flow rate of fuel injected into a combustion chamber during an injection event. While a number of fuel injectors have been developed that have limited rate shaping capabilities, the ability to produce some front end rate shapes has not been possible. In an effort to increase rate shaping capabilities, the present invention includes a valve assembly having at least one valve member that is movable between a plurality of positions to control fluid communication between a number of fluid inlets and outlets.
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