A first discharge port and a second discharge port are formed in the upper end of a valve body, a single-floater valve element assembly and a sealing assembly are arranged in a valve element containing cavity of the valve body, and a pressure maintaining part communicated with the second discharge port is further arranged on the top face of the valve body so as to limit the pressure needed by discharge and circulation from the second discharge port; the single-float valve element assembly is configured to drive the sealing assembly to float upwards to close the first discharge port when the oil tank is filled with oil, and the single-float valve element assembly closes the communication channel and the second discharge port. After refueling and gun jumping, oil in the oil tank is balanced, the difference between the gravity of the single-float valve element assembly and the buoyancy of the oil is larger than the opening force needed by the communication channel and smaller than the opening pressure needed by the first discharge port, the second discharge port is opened, and the first discharge port is kept closed. The functions of a refueling limiting valve and a turnover valve are achieved, only one valve element is adopted, the size of the whole valve is similar to that of a common refueling limiting valve, and the use area of the combination valve on an oil tank is reduced.
本发明公开了一种组合阀,通过在阀体的上端设置第一排出口和第二排出口,并在阀体的阀芯容置腔内设置单浮子阀芯组件和密封组件,并进一步在阀体的顶面上设置连通第二排出口的保压部,以限定从第二排出口排出流通所需的压力;单浮子阀芯组件配置为油箱加油时单浮子阀芯组件带动密封组件上浮关闭第一排出口,且单浮子阀芯组件关闭连通通道和第二排出口;加油跳枪后油箱内油液平衡,单浮子阀芯组件的重力与油液浮力之差大于连通通道所需的开启力,小于第一排出口所需的开启压力,第二排出口开启,第一排出口保持关闭。实现了加油限量阀和翻转阀功能,仅采用一个阀芯,整体阀的大小和一个普通的加油限量阀相近,减小了组合阀在油箱上的使用面积。
Combination valve
一种组合阀
2024-05-10
Patent
Electronic Resource
Chinese
IPC: | F16K VALVES , Ventile / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
European Patent Office | 2024
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