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V type engine and cooling system thereof

A technology of engine and coolant, which is applied in the direction of engine cooling, engine components, machines/engines, etc. It can solve problems such as water leakage and complicated engine assembly, and achieve the effects of saving assembly procedures, facilitating cold start, and reducing temperature

Active Publication Date: 2008-12-03
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermostat seat is generally cast aluminum, which needs to be installed on the cylinder head through bolts, which makes the assembly of the engine complicated, and there may be water leakage and other automobile failures between the thermostat and the coolant pipe due to poor sealing.

Method used

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  • V type engine and cooling system thereof
  • V type engine and cooling system thereof
  • V type engine and cooling system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 , 2 3, the V-shaped cylinder block 1 of the V-type engine of this embodiment is provided with a cylinder block water jacket 4, and the cylinder head is provided with a cylinder head water jacket (the cylinder head is not shown in the figure). The cylinder block water jacket 4 communicates with the cylinder head water jacket, and the V-angle area 6 of the cylinder block 1 is integrated with a thermostat seat 2 and an auxiliary water channel 3, and both ends of the auxiliary water channel 3 are connected with the thermostat respectively. The water inlet of the seat 2 communicates with the water outlet 5 of the water jacket 4 of the cylinder block.

[0024] Integrating the thermostat seat 2 and the auxiliary water channel 3 in the V-angle area 6 of the cylinder block 1 eliminates the need for additional installation of the thermostat seat 2, which reduces engine parts and saves the process of engine assembly; the auxiliary water channel 3 Instead of connectin...

Embodiment 2

[0029] Such as Figure 4 As shown, the cooling system of this embodiment applied to the V-engine of the above-mentioned embodiment 1 includes a cylinder block water jacket 4 and an auxiliary water channel 3 in the cylinder block, a cylinder head water jacket 41 in the cylinder head, a radiator 8, and a water pump 9 and the thermostat 7 fixed on the cylinder block thermostat seat, the cylinder block water jacket 4, the cylinder head water jacket 41, the auxiliary water channel 3, the thermostat 7, the radiator 8 and the water pump 9 are connected to form a large circulation Channel, the cylinder water jacket 4, the cylinder head water jacket 41, the auxiliary water channel 3, the thermostat 7 and the water pump 9 are connected to form a small circulation channel.

[0030] When the temperature of the engine coolant rises to the set temperature, the main valve 71 of the thermostat 7 opens, the bypass valve 72 closes, and the coolant circulates in the large circulation channel; when t...

Embodiment 3

[0034] The cooling system of this embodiment applied to the V-type engine of the first embodiment is different from that of the second embodiment in that the radiator 8 is connected with a sub-tank 11 to prevent loss of coolant.

[0035] The radiator 8 is connected to the auxiliary water tank 11 through a pressure valve 10 and an overflow pipe provided on the top of the radiator 8. The upper part of the auxiliary water tank 11 is in communication with the atmosphere. When the steam pressure in the radiator 8 rises to a set value, The pressure valve 10 is opened, and the cooling liquid in the radiator 8 enters the auxiliary water tank 11 through the pressure valve 10 and the overflow pipe; when the pressure in the radiator 8 is reduced, the cooling liquid in the auxiliary water tank 11 passes through the overflow pipe and the pressure The valve 10 flows back into the radiator 8. In order for the cooling system to work normally, the height of the cooling liquid in the auxiliary wate...

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Abstract

The invention provides a V-shaped engine with a simple and compact structure and a cooling system with simple assembly and reliable performance for the V-shaped engine. The V-shaped engine comprises a cylinder body arranged in V shape and a cylinder cover covering the cylinder body, wherein a cylinder body water jacket is arranged in the cylinder body; a cylinder cover water jacket is arranged in the cylinder cover and is communicated with the cylinder body water jacket; particularly, a thermostat holder and an accessorial water channel are integrally arranged in the V-angle region of the cylinder body; and the accessorial water channel is respectively connected with the water inlet of the thermostat holder and the cylinder body water jacket at both ends. The cooling system comprises the cylinder body water jacket, the cylinder cover water jacket, the accessorial water channel, a thermostat, a radiator and a water pump, which are connected with each other to form a large circulation system, wherein the cylinder body water jacket, the cylinder cover water jacket, the accessorial water channel, the thermostat and the water pump are connected with each other to form a small circulation system. The V-shaped engine and the cooling system thereof have the advantages of simple and compact structure, reliable performance, low cost and high market competitiveness.

Description

Technical field [0001] The invention relates to a V-type engine and its cooling system. Background technique [0002] At present, there are three main ways to arrange the V-angle area between the cylinder blocks on both sides of the V-type engine: 1. Arrange the crankcase ventilation pool to balance the pressure in the crankcase; 2. Add stiffeners in the V-angle area to improve the cylinder The strength of the body; 3. Only rough datum bosses for processing are arranged. The above three methods do not make full use of the space in the V-angle area of ​​the engine, making the engine structure not compact. [0003] In addition, the above-mentioned thermostat seat of the cooling system of the V-type engine is arranged on the cylinder head as a separate part, and the thermostat installed on the thermostat seat is connected to the radiator and the engine water jacket through the coolant pipe. Compose the cooling system of the engine. The thermostat seat is generally a cast aluminum pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P3/04F01P7/16
CPCF02F7/0012F01P3/02
Inventor 罗春常鹏飞朱小平
Owner CHERY AUTOMOBILE CO LTD
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