A cooling system for an engine

• Main Authors: IAN GRAHAM PEGG, LES WILLIAM ROUTLEDGE
• Format: Patent
• Language: English
• Published: 18.11.2009
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; COMBUSTION ENGINES; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ENGINE PLANTS IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

A cooling system for an engine comprises a cooling circuit through which coolant is circulated by a pump 5, the coolant circuit featuring at least one coolant injector 8 comprising a hollow body 30 defining a flow passage through which coolant can flow, the hollow body 30 having a convergent nozzle portion 33 at one end to provide a jet of coolant 34 and one or more apertures 31 formed so as to permit coolant to escape 32 from the hollow body 30 in a different direction to the direction in which the coolant flows from the nozzle portion 33. The cooling system may in use cool a cylinder block 10, having at least one cylinder 11 and a cooling passage 12 encircling the cylinder 11. The cooling passage 12 may include an interbore passage 12a located between adjacent cylinders 11. There may be provided at least one coolant injector 8 aligned with a respective inter-bore cooling passage 12a. There may be a number of coolant injectors 8 located on opposite sides of the cylinder block 10. The coolant may exit the apertures 31 at substantially 90 degrees to the direction of flow from the nozzle portion 33. There may be two apertures 31 formed on opposite sides of the hollow body 30. The hollow body 30 may be cylindrical.