Resonance perforated-plate type electronic control fuel injector with hydraulic feedback function
An electronically controlled fuel injection and fuel injector technology, which is applied in the direction of machines/engines, fuel injection devices, engine components, etc., can solve the problems of large dynamic oil return, energy loss, etc., to reduce pressure fluctuations and improve pressure fluctuations , to ensure the normal and stable effect
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[0021] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0022] combine Figure 1-5 , The present invention includes an injector head 1 , a restrictor valve assembly 3 , a solenoid valve assembly 5 , a needle valve assembly 6 , a tight cap 9 , and an injector body 10 . The fuel injector head 1 is mounted on the fuel injector body 10 through threaded fitting connection, and is sealed by the sealing ring 2 placed on the fuel injector body 10 . A main oil inlet hole 12 is arranged in the injector head 1 and communicates with the pressure accumulator chamber 11 in the injector body 10 . A restrictor valve assembly 3 is arranged below the accumulator chamber 11 . The flow limiting valve assembly 3 is installed inside the fuel injector body 10, and its main structure includes a retaining ring 13, a damping spring 14, a ball valve 16, a support control slider 17, a ball valve return spring 22, a ball valve return spring seat...
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