公开(公告)号：US3958548A

公开(公告)日：1976-05-25

申请号：US535412

申请日：1974-12-23

申请人： Ludvik F. Koci ,  John H. Cryder

发明人： Ludvik F. Koci ,  John H. Cryder

IPC分类号： F01P5/14

CPC分类号： F01P5/14

摘要： An internal combustion engine is provided with an engine driven pump forced cooling system that is closed to permit operation at elevated pressures and temperatures. A protective device is provided to stop or otherwise modify normal engine operation upon a failure of adequate coolant flow. The protective device is made responsive to the difference in coolant pressure between the pump inlet and outlet to eliminate any effect of cooling system pressurization upon the indication of coolant flow. Variations in normal coolant flow with engine speed are accommodated by additional means responsive to pressure in another engine fluid system, such as the air box, where the pressure varies with engine speed, such that reduction of the differential coolant pressure across the pump below a predetermined value relative to engine speed permits actuation of the protective device to stop or modify engine operation.

摘要翻译： 内燃机设置有发动机驱动的泵强制冷却系统，其被关闭以允许在升高的压力和温度下运行。 提供保护装置，用于在足够的冷却剂流动失败时停止或以其他方式修改正常的发动机运行。 保护装置响应于泵入口和出口之间的冷却剂压力的差异，以消除冷却剂流动指示时的冷却系统加压的任何影响。 正常冷却剂流量随发动机转速的变化通过响应于另一发动机流体系统（例如空气箱）中的压力的​​附加装置来适应，其中压力随着发动机转速而变化，从而将泵上的差速冷却剂压力降低到低于预定 相对于发动机转速的值允许致动保护装置以停止或修改发动机的运转。