A gas injection valve cleaning and gas leakage detection equipment and detection method
A gas injection valve and detection equipment technology, applied in fuel injection devices, mechanical equipment, measuring devices, etc., can solve problems such as insufficient flow rate of injection valves, wear of nozzle sealing rubber rings, blockage of injection valve nozzles, etc., to achieve a reasonable and compact structure, The effect of prolonging the service life
Active Publication Date: 2018-08-10
WEICHAI XIGANG NEW ENERGY POWER
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Problems solved by technology
Impurities in the gas will, on the one hand, cause blockage of the nozzle of the injection valve, resulting in insufficient flow of the injection valve; on the other hand, it will accelerate the wear of the sealing rubber ring of the nozzle, causing internal and external leakage, and finally lead to enriched or lean combustion of the engine
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[0026] Below in conjunction with accompanying drawing and embodiment, further elaborate the present invention. In the following detailed description, certain exemplary embodiments of the invention are described by way of illustration only. Needless to say, those skilled in the art would realize that the described embodiments can be modified in various different ways, all without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
[0027] Such as figure 1 As shown, a gas injection valve cleaning and gas leakage detection equipment includes a workbench 1 on which 2 groups of injection valves are installed, and the 2 groups of injection valves include a number of injection valves 2 connected in parallel. The inlet of the injection valve 2 group is connected with an inlet pipeline 21, and an inlet mode selection valve 22 is installed on the inlet pip...
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The invention discloses a cleaning and leakage detection device for a fuel gas injection valve and a detection method. The cleaning and leakage detection device comprises a working rack, wherein an injection valve block is mounted on the working rack; the injection valve block comprises a plurality of injection valves in parallel connection; an inlet pipeline is connected with an inlet of the injection valve block; an inlet mode selecting valve is mounted on the inlet pipeline; a leakage detecting gas source and a cleaning device are connected with the inlet mode selecting valve; an outlet mode selecting valve is connected with a nozzle of each of the injection valves; the outlet mode selecting valve is connected with an internal leakage observing device and a cleaning fluid recycling device; a valve block fixing device is mounted on the working rack. The cleaning and leakage detection device has a reasonable and compact structure and can perform periodic cleaning and internal and external leakage detection on the fuel gas injection valve, so as to repair the injection valve and prolong the service life of the injection valve.
Description
technical field [0001] The invention relates to the technical field of natural gas engines, in particular to a device for cleaning and leak testing an injection valve and a detection method based on the device. Background technique [0002] In the natural gas engine field, the injection valve receives the ECU signal and injects gas according to the instruction. Injection valves vary in number of nozzles (8, 10, 12 nozzles) depending on the engine displacement. Impurities in the gas will, on the one hand, cause blockage of the nozzle of the injection valve, resulting in insufficient flow of the injection valve; on the other hand, it will accelerate the wear of the sealing rubber ring of the nozzle, causing internal and external leakage, and eventually lead to enriched or lean combustion of the engine. Impurities in the gas are unavoidable, which requires us to regularly clean and maintain the injection valve and detect internal and external leakage to prolong the service lif...
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IPC IPC(8): F02M65/00F02B77/04
CPCF02M65/006F02M65/008
Inventor 邵思东纪富义
Owner WEICHAI XIGANG NEW ENERGY POWER