Micro-injection electronically-controlled fuel injector with pressure-maintaining structure
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 problem of small installation space of micro-spray electronically controlled fuel injectors, extended fuel injection duration, and needle valve opening / Long closing time and other problems, to achieve the effect of accelerating the fuel pressure build-up rate, accelerating the needle valve opening rate, and increasing the needle valve opening rate
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[0033] The invention will be further described below in conjunction with the accompanying drawings.
[0034] see figure 1 , figure 2 and image 3 A micro-spray electronically controlled fuel injector with a pressure-holding structure is shown, including:
[0035] The upper part of the upper body 1 of a fuel injector is provided with an upper oil chamber 10 and a total oil inlet passage 102 communicated with the upper oil chamber, a total oil return passage 101, an oil inlet passage 103 communicated with an oil inlet interface 104, and a return oil passage. The oil return oil passage 106 connected by the oil interface 105;
[0036] A fuel injector lower body 2 is connected to the lower end of the fuel injector upper body 1 through the fuel injector tight cap 3, and the lower part of the fuel injector lower body 2 is provided with a lower oil chamber 20, which is connected to the lower oil chamber. The total return oil passage 101 is connected;
[0037] A nozzle member is ...
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