Double-loop cooling system and method for engine

A cooling system and engine technology, applied in the direction of engine cooling, engine components, machines/engines, etc., can solve the problems of shortened engine life, poor economy and emissions, and achieve the effect of increasing power

Active Publication Date: 2016-02-03
宝鸡吉利发动机有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the existing engine cooling system in which the cooling water channels of the cylinder block and the cylinder head are connected in series. The cooling water temperature of the cylinder block is too high, which

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  • Double-loop cooling system and method for engine

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] as attached figure 1 Shown: a dual-circuit cooling system for an engine, including a cylinder body water jacket 1 and a cylinder head water jacket, and a main water pump 2 whose outlet is connected to the inlet of the cylinder body water jacket 1; the cylinder head water jacket includes an inlet and a main water pump 2 The cylinder head upper water jacket 3 connected to the outlet and the cylinder head lower water jacket 4 connected to the inlet and the main water pump outlet; the engine dual-circuit cooling system also includes an engine oil cooler 5 connected in series with the cylinder body water jacket 1, and the outlet is connected to the main water pump The radiator 6 connected to the inlet of 2, the cylinder head thermostat 7 connected to the outlet of the upper water jacket 3 of the cylinder head and the outlet of the lower water jacket 4 of the cylinder...

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Abstract

The invention relates to the field of engine cooling systems and aims at providing a double-loop cooling system and method for an engine. The double-loop cooling system for the engine comprises a cylinder block water jacket and a cylinder cover water jacket, and a main water pump; the cylinder cover water jacket comprises an upper cylinder cover water jacket and a lower cylinder cover water jacket, the two of which are connected with the main water pump; the double-loop cooling system for the engine further comprises an engine oil cooler connected in series with the cylinder block water jacket, a radiator connected with the main water pump, a cylinder cover thermostat connected with the upper cylinder cover water jacket and a lower cylinder cover water jacket, a cylinder block thermostat connected with the cylinder block water jacket and the radiator, an expansion tank connected with the main water pump, a first degassing valve connected with the upper cylinder cover water jacket and the expansion tank, a second degassing valve connected with the main water pump and the expansion tank, and a third degassing valve connected with the cylinder cover thermostat and the expansion tank; a water temperature sensor is arranged at an outlet of the lower cylinder cover water jacket. The double-loop cooling system for the engine is good in dynamic property, economical efficiency and discharge property of the engine, and is further capable of prolonging the service life of the engine.

Description

technical field [0001] The invention relates to the field of engine cooling systems, in particular to an engine dual-circuit cooling system and a cooling method. Background technique [0002] The engine cooling system of the car is responsible for providing cooling for the engine and ensuring the normal and reliable operation of the engine. In traditional engines, the cooling system is usually a cooling system with a single cooling circuit. The water pump is usually arranged on the cylinder block, and the cooling water enters from the water inlet of the cylinder block. After cooling the cylinder block, the cooling water flows upward into the cylinder head. After the cylinder head is cooled It flows out from the rear end of the cylinder head, and flows to the outer circulation under the action of the thermostat and various water pipes; the invention of Chinese patent application number: 200910172940.8 discloses an engine cooling system and cooling method. The cooling system i...

Claims

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Application Information

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IPC IPC(8): F01P3/20F01P5/10F01P7/16F01P11/02F02N19/10F16H57/04
Inventor 史程中袁爽沈源王瑞平
Owner 宝鸡吉利发动机有限公司
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