首页>
外国专利>
Evaporation leakage checking system and checking method of evaporation leakage using the same
Evaporation leakage checking system and checking method of evaporation leakage using the same
展开▼
机译：蒸发泄漏检查系统及使用该系统的蒸发泄漏检查方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
An evaporation leakage checking system includes a pump, a pump passage unit, a tank passage unit, a specified passage unit, an atmosphere passage unit, a flow-passage area changing unit, an atmosphere valve unit, a pressure sensing unit, and a control unit. The control unit includes a calculating unit that calculates a leakage threshold, based on a first pressure, a first area, an Nth pressure, an Nth area, and a reference area that is predetermined, and a leakage checking unit that activates the pump, closes the atmosphere passage unit by changing the flow-passage area of the atmosphere passage unit by using the atmosphere valve unit, and checks the existence of the evaporation leakage based on the leakage threshold and a checking pressure that is the pressure sensed by the pressure sensor in a case where a communication between the tank passage unit and the pump passage unit is allowed.
展开▼
