公开(公告)号：US11525419B1

公开(公告)日：2022-12-13

申请号：US17511462

申请日：2021-10-26

申请人： Progress Rail Locomotive Inc.

发明人： Raji Rexavier ,  Joshua David Schueler ,  Patricia A McWade

IPC分类号： F02F1/16 ,  F01P3/02 ,  F02F1/14 ,  F02F1/40

摘要： An engine power module includes a water jacket, a cylinder liner, and a cylinder head. The water jacket forms a coolant supply conduit arranged in a lower coolant annulus extending around the cylinder liner and an upper coolant annulus extending around the cylinder head. The cylinder head has formed therein an injector bore, and a plurality of drill holes convergent on the injector bore. A lower coolant cavity in the cylinder head forms a coolant flow path extending circumferentially around the injector bore between a cavity inlet opening fluidly connected to the coolant supply conduit, and a cavity connection opening fluidly connected to an upper coolant cavity. The arrangement provides flows of coolant through the drill holes to cool an injector sleeve, and separate coolant flows through the lower coolant cavity and upper coolant cavity.