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US07628139B2 Fuel injector with dual piezo-electric actuator 失效
燃油喷射器,双压电致动器

Fuel injector with dual piezo-electric actuator
摘要:
A fuel injector 10 for a Diesel engine has a plunger 12 and two control valves 20 and 30 for controlling the injection of fuel from the main supply cavity to the discharge port 52. Each control valve 20 and 30 are actuated through piezo-electric stacks 34 and 74 connected to a electronic variable voltage supply 33.
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