Outer rotor global fuel injector used for engine

Abstract

The invention discloses an outer rotor global fuel injector used for an engine, comprising a fuel injector (1) and a combustion chamber interface body (2). The outer rotor global fuel injector is characterized in that a rotating injection shell (3) is arranged between the fuel injector (1) and the combustion chamber interface body (2) and respectively contacted with the fuel injector (1) and the combustion chamber interface body (2) in a rotating and sealing mode; and a rotating driving structure (4) is arranged on the rotating injection shell (3) and controlled by a driving device (5). The outer rotor global fuel injector can realize mixing of fuel and air in the global area of a combustion chamber or an air cylinder and improve the combustion performance of the mixed gas, thus improving the efficiency and environmental protection of the engine.

Description

technical field [0001] The invention relates to the field of engines. Background technique [0002] The engine fuel injection device and its technology are very important to the efficiency and environmental protection of the engine. Therefore, there are many researches and products in this field. However, the fundamental problem of fuel injection is how to improve the mixing degree of fuel and air and realize the adjustability of injection timing and fuel injection quantity. So far, the fuel injection technology has adopted the fixed fuel injection technology. Since the fuel injection will form a cone-shaped oil mist, a blank space with no oil mist or little oil mist will be formed between different cone-shaped oil mist. , it is obvious that the air and fuel in the empty space are not mixed well or not mixed at all, which affects the combustion of the mixture in the combustion chamber. Usually, in order to reduce and eliminate this blank space, high atomization injection t...

AI Technical Summary

Problems solved by technology

However, the fundamental problem of fuel injection is how to improve the mixing degree of fuel and air and realize the adjustability of injection timing relationship and fuel injection quantity.

So far, the fuel injection technology has adopted the fixed fuel injection technology. Since the fuel injection will form a cone-shaped oil mist, a blank space with no oil mist or little oil mist will be formed between different cone-shaped oil mist. , it is obvious that the air and fuel in this empty space are mixed poorly or not at all, which affects the combustion of the mixture in the combustion chamber

Usually, in order to reduce and eliminate this blank space, high atomization injection technology and improved air flow technology in the cylinder are often used, but these technologies are difficult to completely eliminate the blank space. Although I have applied for several patents on fuel injectors: such as a Global fuel injection device for engines (patent application numbers: 200910138662.4 and 200920150943.7), a time domain controllable fuel injection device for engines (patent application numbers: 200910142845.3 and 200920153933.9), an outer rotor fuel injector for engines (patent application numbers: 200910142846.8 and 200920153934.3) and an engine inner rotor fuel injector (patent application number: 200910142847.2 and 200920153935.8), although these patents overcome the above-mentioned shortcomings of the traditional fixed fuel injection device, but the traditional fuel injector with mature technology changes Therefore, it is necessary to invent a new, reliable and low-cost fuel injection technology so that fuel and air can be well mixed in the entire area of ​​the combustion chamber or cylinder, and further improve the efficiency and efficiency of the engine. Environmental protection

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