Patent ID: 11859576
Assignee: PROGRESS RAIL LOCOMOTIVE INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 13:
14. A cylinder head comprising:
a cylinder head casting including a top deck, a fire deck, and a middle deck, and having formed therein a coolant cavity and an injector bore defining a bore center axis;
the fire deck including an upward facing fire deck surface extending circumferentially around the injector bore, and having formed therein a plurality of coolant feed passages extending horizontally through the fire deck and converging upon the injector bore;
the middle deck including an exhaust conduit and an intake conduit extending vertically downward to the fire deck, and an upward facing middle deck surface extending circumferentially around the injector bore; and
the middle deck including cast material forming the exhaust conduit, the intake conduit, and the upward facing middle deck surface, and the upward facing middle deck surface being positioned at an axially spaced location from the fire deck so as to react a downward clamping load on the upward facing middle deck surface via the cast material of the middle deck.