A detection system and detection method for the injection angle of an engine fuel injector
A technology of injection angle and detection system, which is applied in the direction of engine testing, machine/structural component testing, engine components, etc., can solve the problems of low detection accuracy and difficulty in satisfying injection accuracy, and achieve high detection precision and detection fast effect
Inactive Publication Date: 2011-12-28
WENZHOU UNIVERSITY
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Problems solved by technology
The fuel injector is a precision device with very high machining accuracy. At present, the detection of the injection range and angle of the fuel injector has been carried out by manual observation to detect the injection angle of the fuel injector. It is difficult to meet the increasing injection accuracy requirements of current engines for injectors
Moreover, there is currently no special machine on the market to detect the injection angle of the engine injector, and the detection accuracy using the angle of manual observation is low
Method used
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[0028] Such as figure 1 As shown, the specific embodiment of the present invention is a detection system for the injection angle of an engine injector, including a pressure source, the pressure source includes a fuel tank 1 and an oil pump 3 driven by a motor 2, the oil pump 2 is connected to the fuel tank 1, and the oil pump 2 It is connected with the test head 18 through the pipeline, and the test head 18 is used for installing the fuel injector of the tested object. On the pipeline connecting the oil pump 2 and the test head 18, the direction from the oil pump 2 to the test head 18 is respectively provided with a first electromagnetic reversing valve 9 and a check valve 10, and on the pipeline connecting the first electromagnetic reversing valve 9 and the oil pump 5 The first overflow valve 3 is provided through the branch pipeline, the first electromagnetic reversing valve 9 is connected to the pressure relay 14 through the pipeline, and the pipeline connected to the two i...
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The invention discloses a system for detecting a spraying angle of an engine oil sprayer. The system comprises a pressure source, wherein the pressure source comprises an oil pump; the oil pump is connected with a test head through a pipeline, the pipeline for communicating the oil pump with the test head is provided with a first electromagnetic directional valve and a one-way valve, the first electromagnetic directional valve is connected with a pressure relay, a pipeline for connecting the first electromagnetic directional valve with the pressure relay is provided with a hydraulic control one-way valve which is communicated with a second electromagnetic directional valve, a pipeline for communicating the pressure relay with the hydraulic control one-way valve is provided with a connecting branch pipeline, the other end of the connecting branch pipeline is communicated with the pipeline for communicating the test head with the one-way valve, a second overflow valve is arranged on thesecond electromagnetic directional valve, and a spraying disk and a weighing sensor are arranged below the test head. The invention also discloses a method of the system. The system and the method for detecting the spraying angle of the engine oil sprayer are used for testing the spraying angle and the spraying range of the oil sprayer by simulating the operation environment of an engine, and hasthe advantages of high detection speed and high detection precision.
Description
technical field [0001] The invention relates to a method and a system for detecting the injection range and angle of a fuel injector by using a method for detecting liquid weight, in particular to a detection system and a detection method for the injection angle of an engine fuel injector. Background technique [0002] In various industrial systems and the automobile industry, fuel injectors for internal combustion engines are more common. There are fuel injectors on the fuel injectors. The fuel injectors receive the fuel injection pulse signals from the car and will accurately control the fuel injection volume. The fuel injector is a precision device with very high machining accuracy. At present, the detection of the injection range and angle of the fuel injector has been carried out by manual observation to detect the injection angle of the fuel injector. It is difficult to meet the increasing injection accuracy requirements of the current engine for the fuel injector. M...
Claims
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IPC IPC(8): F02M65/00
Inventor 龙江启周斯加俞平
Owner WENZHOU UNIVERSITY