滑油系统及发动机试验装置

本发明提供了一种滑油系统及发动机试验装置。滑油系统包括储油容器、供油管路、回油管路和阀组，供油管路的两端分别与储油容器和试验段连接，回油管路的两端分别与储油容器和阀组连接；阀组包括两个回油阀，回油阀的输出端与回油管路连接，回油阀的输入端与试验段连接，且两个回油阀的输入端相对设置，回油阀包括第一阀体和第一阀芯，第一阀芯能够在自身重力作用下在第一阀体内部运动，以使回油阀开启或关闭。发动机试验装置包括上述滑油系统，阀组设有多个，多个阀组均连接在支承座上，且多个阀组沿支承座的周向分布。本发明提供的滑油系统和发动机试验装置，回油效率高，不易出现回油困难的情况。

The invention provides a lubricating oil system and an engine test device. The lubricating oil system comprises an oil storage container, an oil supply pipeline, an oil return pipeline and a valve group, wherein two ends of the oil supply pipeline are respectively connected to the oil storage container and a test section, and two ends of the oil return pipeline are respectively connected to the oil storage container and the valve group; the valve group comprises two oil return valves, the output ends of the oil return valves are connected to the oil return pipeline, the input ends of the oil return valves are connected to the test section, the input ends of the two oil return valves are oppositely arranged, each oil return valve comprises a first valve body and a first valve element, and each first valve element can move in the corresponding first valve body under the action of self gravity, so that the corresponding oil return valve can be opened or closed. The engine test device comprises the lubricating oil system, the valve groups are arranged and are all connected to a supporting seat, and the plurality of valve groups are distributed along the circumferential direction of thesupporting seat. The lubricating oil system and the engine test device provided by the invention are high in oil return efficiency and not prone to occurrence of oil return difficulty.