The invention relates to a divisional application, the application number of the original application is' 202010840628.8 ', and the name of the invention is' an integrated oil tank isolating valve '. The invention relates to the technical field of automobile fuel management systems, in particular to a two-stage opening structure of a fuel tank isolation valve. A first cavity and a second cavity are sequentially formed in the shell from top to bottom; a ventilation plate is arranged between the first cavity and the second cavity, a central ventilation hole is formed in the center of the ventilation plate, and a secondary opening ventilation hole is further formed in the ventilation plate; comprising a positive pressure valve assembly which is arranged in the second cavity. The positive pressure valve assembly comprises a positive pressure valve, and a first-stage opening vent hole is formed in the center of the positive pressure valve; the system further comprises a second-stage opening valve and an integrated electromagnetic valve, and the integrated electromagnetic valve can sequentially achieve first-stage opening and second-stage opening in the electrifying process so that the pressure relief speed can be increased through second-stage opening after the first-stage opening pressure drops.
本申请是分案申请,原申请的申请号为“202010840628.8”,发明名称为“一种集成式油箱隔离阀”。本发明涉及汽车燃油管理系统技术领域,具体涉及一种油箱隔离阀二级开启结构。壳体,所述壳体内从上至下依次设有第一腔体和第二腔体;所述第一腔体和第二腔体之间设有通气板,所述通气板中心处开设有中心通气孔,所述通气板上还开设有二级开启通气孔;包括正压阀组件,所述正压阀组件设置在第二腔体内;所述正压阀组件包括正压阀,所述正压阀中心处开设有一级开启通气孔;还包括二级开启阀门和集成电磁阀,所述集成电磁阀在通电过程中能够依次实现一级开启和二级开启,以实现随着一级开启压力下降后通过二级开启增大泄压速度。
Secondary opening structure of isolating valve of oil tank
一种油箱隔离阀二级开启结构
2024-05-24
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 |
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