本文介绍对内燃机所有零件密封腔进行自动快速检测的一种新方法。它通过检测密封性能良好、毫不泄漏的标准容器和受检零件密封腔之间压差，并由自行设计的电子控制系统来实现受检容器泄漏的自动检测。此法工作可靠有较高的测量精度和检测效率，可对内燃机气缸体、气缸盖、冷却水箱、机油散热器和油箱等受检容器进行自动检测。 This article describes a new method of automatic and rapid detection of all parts of the internal combustion engine seal cavity. It detects the leaks in the container under inspection by detecting the pressure difference between a well-sealed, leak-tight standard container and the sealed part of the part to be inspected by a self-designed electronic control system. This method is reliable and has high measurement accuracy and detection efficiency. It can automatically detect the inspected containers such as engine block, cylinder head, cooling water tank, oil radiator and fuel tank.