The invention discloses a valve and a multifunctional combined valve. The valve can realize functions of an oil-filling limiting valve and a turnover valve in a fuel tank. A valve element accommodating cavity is arranged in a valve body, and a first flowing-in channel, a second flowing-in channel, a first discharge hole and a second discharge hole, which communicate with the valve element accommodating cavity, are arranged in the valve body; a first valve element assembly and a second valve element assembly which vertically slide independently are arranged in the valve element accommodating cavity for opening and closing the first discharge hole and the second discharge hole; a pressure maintaining part with certain opening pressure therein is connected to the second discharge hole; afterthe first valve element assembly closes the first discharge hole and a certain pressure value is achieved in the valve element accommodating cavity, the pressure maintain part opens the second discharge hole, so that fluid flows out from the second discharge hole. Two valve element assemblies can realize different functions without mutual influences; and the combined valve of different technical needs can be obtained by separately regulating performances of two valve elements, so that the problem that the two valve elements in an existing combined valve mutually affect is solved.
本发明公开了一种阀及多功能组合阀,该阀可以同时实现燃料箱中加油限量阀和翻转阀的功能。通过在阀体内设置阀芯容置腔,并设置与之连通的第一流入通道、第二流入通道、第一排出口和第二排出口。阀芯容置腔内则设有两个独立竖向滑动的第一阀芯组件和第二阀芯组件,用于开关第一排出口和第二排出口。保压部则与第二排出口相连,内含一定的开启压力;第一阀芯组件关闭第一排出口后,阀芯容置腔内须达到一定压力值后,保压部会开启第二排出口,流体会第二排出口流出。两个阀芯组件可实现不同的功能,且互不影响,可通过分别调整两个阀芯的性能来得到不同技术需求的组合阀,解决了现有组合阀中两个阀芯互相影响的问题。
Valve and multifunctional combined valve
一种阀及多功能组合阀
2021-02-09
Patent
Elektronische Ressource
Chinesisch