Shell deformation fuel injector for engine
A technology of engines and injectors, which is applied to engine components, machines/engines, fuel injection devices, etc., to achieve the effects of good temperature resistance, accurate fuel injection volume, and small size
Inactive Publication Date: 2011-06-15
董瑞明
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Problems solved by technology
In recent years, in the field of fuel injection technology for diesel engines and gasoline engines, although the fuel injection pressure has been continuously improved, and high-pressure common rail and solenoid valve control injection technologies have been widely used, most of the current fuel injectors have large volume and high manufacturing costs. , slow fuel injection response and other shortcomings, especially diesel injectors need to be equipped with an oil return system, plunger couple and valves, and the structure is complex, which restricts the improvement of engine efficiency and environmental protection performance
Method used
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Embodiment Construction
[0039] The present invention will be further described below in conjunction with accompanying drawing, please refer to figure 1 The shown casing deformed fuel injector for an engine includes: a closed casing 1 and an oil inlet port 15 . A valve body 4 is provided in the inner cavity 14 of the closed casing 1, and one end 401 of the valve body 4 is connected with one end of the closed casing 1, and a valve is arranged at the other end of the closed casing 1. hole 8, the other end 402 of the valve body 4 is provided with a valve head 5, the valve head 5 can seal and close the valve hole 8, and can also open the valve hole 8, the valve head 5 and the valve hole 8 The matching surface of the valve hole 8 is set as a plane, a conical surface or a curved surface, and at least one elastic region 3 is provided on the closed shell 1, and the inner cavity 14 of the closed shell 1 is directly or indirectly connected to the The fuel inlet port 15 is in communication with the timing puls...
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The invention discloses a shell deformation fuel injector for an engine, which comprises a closed shell and a fuel inlet interface. An inner cavity of the closed shell is provided with a valve body; one end of the valve body is connected with one end of the closed shell; the other end of the closed shell is provided with a valve hole; the other end of the valve body is provided with a valve head;the matching surface of the valve head and the valve hole is a plane, a conical surface or a curved surface; the valve head can seal and close the valve hole and also can open the valve hole; the closed shell is at least provided with one elastic region; the inner cavity of the closed shell is directly or indirectly communicated with the fuel inlet interface; and the fuel inlet interface is communicated with a timing pulse fuel source directly or through a vitta. The shell deformation fuel injector for the engine has simple structure, small volume, low manufacturing cost and rapid injection response.
Description
technical field [0001] The invention relates to the field of engines, in particular to a casing deformation fuel injector for the engine. Background technique [0002] Fuel injection technology is one of the most important technologies to improve engine efficiency and reduce engine emissions. In recent years, in the field of fuel injection technology for diesel engines and gasoline engines, although the fuel injection pressure has been continuously improved, and high-pressure common rail and solenoid valve control injection technologies have been widely used, most of the current fuel injectors have large volume and high manufacturing costs. , fuel injection response is slow and other disadvantages, especially the diesel injector needs to be equipped with oil return system, plunger couple and valve, the structure is complex, which restricts the improvement of engine efficiency and environmental protection performance. Therefore, the applicant invented a fuel injector with s...
Claims
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IPC IPC(8): F02M61/04F02M61/18F02M61/14
Inventor 靳北彪
Owner 董瑞明