Engine cooling system with separately-arranged cylinder head and exhaust manifold water sleeves

Abstract

The invention relates to an engine cooling system with separately-arranged cylinder head and exhaust manifold water sleeves. The engine cooling system comprises a water pump, a cylinder water sleeve arranged inside a cylinder and connected and communicated with an outlet of the water pump, a cylinder head water sleeve arranged inside a cylinder head and communicated with the cylinder water sleeve through a cylinder gasket hole, a radiator, a fan heater and an engine oil cooler which are connected and communicated with a water outlet of the cylinder head of the cylinder head water sleeve, and a thermostat connected with the radiator, and further comprises the exhaust manifold water sleeve arranged inside the cylinder head. The exhaust manifold water sleeve is provided with an exhaust manifold water sleeve water inlet and an exhaust manifold water sleeve water outlet. The exhaust manifold water sleeve water inlet and the outlet of the water pump are directly connected and communicated. The exhaust manifold water sleeve water outlet is connected with the thermostat, and switching control is performed through actions of the thermostat. The radiator, the fan heater, the engine oil cooler and the exhaust manifold water sleeve are connected and communicated with the water inlet of the water pump through a water through pipe. The cylinder head water sleeve and the exhaust manifold water sleeve can be separated, and independent control over the exhaust manifold water sleeve can be achieved.

Description

technical field [0001] The invention relates to an engine cooling system, in particular to an engine cooling system in which the cylinder head is separately provided with an exhaust manifold water jacket. Background technique [0002] The traditional water jacket only includes the cylinder water jacket and the cylinder head water jacket, and the heat of the exhaust gas has not been well utilized. Now some foreign manufacturers have adopted the cylinder head with integrated exhaust manifold, that is, the cylinder head water jacket covers the exhaust manifold. The pipe part, but the water jacket covering the exhaust manifold is connected with the cylinder head water jacket, and independent control cannot be achieved. The traditional cylinder head water jacket does not cover the exhaust manifold, and cannot effectively use the heat of the exhaust gas to accelerate the warm-up during cold start. However, the cylinder head with integrated exhaust manifold cannot independently con...

AI Technical Summary

Problems solved by technology

The above-mentioned integrated exhaust manifold type three-cylinder engine cooling water jacket is provided with exhaust side water jackets connected to the cooling water channel at the upper and lower ends of the exhaust manifold, and there is a problem that the opening and closing of the exhaust manifold water jacket cannot be independently controlled

Images