客车制动机是铁路客车上的一个重要组成部分。为保证高速运动的旅客列车能根据需要随时停车或减速而设。其性能的好坏对于行车安全,多快好省地发展我国社会主义铁路运输事业有重大关系。但是我国现有客车上使用的 P 型、GL 型制动机都是本世纪初外国设计的 Passenger car brake is an important part of the railway passenger car. In order to ensure that high-speed passenger trains can be stopped or decelerated as needed at any time. Its performance is good or bad for driving safety, more quickly and economically, the development of China’s socialist rail transport has a major relationship. However, P-type and GL-type brake motors used in the existing passenger cars in our country are all designed by foreign countries at the beginning of this century