Integrated exhaust cylinder head

• Main Authors: RIEGGER JOHN CHRISTOPHER, BREWER TODD JAY, TALLIO KEVIN V
• Format: Patent
• Language: English
• Published: 24.02.2015
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

An engine cooling system is provided. The engine cooling system includes a cylinder head including an integrated exhaust manifold that directs exhaust gases to an exhaust outlet port and a coolant passage surrounding the exhaust manifold. The engine cooling system further includes a cluster of separated exhaust passages for directing exhaust gases to the exhaust outlet port, the cluster including a drill hole disposed within material between the exhaust passages, the drill hole fluidically coupled to the coolant passage.