Patent ID: 9080540
Filing Date: 2015-07-14
Classification: F01P,F02M

Abstract:
1. An internal combustion engine, comprising: an injector including a nozzle assembly having an outer surface; a cylinder head including an injector mounting bore to receive the injector, an upper sealing portion, and a lower sealing portion; an upper seal positioned between said upper sealing portion and said nozzle assembly to form a fluid seal; an engine coolant passage formed in said cylinder head to receive engine coolant to remove heat from said cylinder head, said engine coolant passage opening into, and fluidly connected to, said mounting bore to cause coolant in said coolant passage to contact said outer surface of said nozzle assembly; and a lower seal positioned between said lower sealing portion and said nozzle assembly to form a fluid seal, said lower seal including a flange and a annular cooling sleeve extending from the flange to surround a portion of the nozzle assembly, said flange positioned between the nozzle assembly and the cylinder head to create the fluid seal and having a surface in contact with said coolant.