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A double-layer water jacket structure of a cylinder head for a cross-flow cooling engine

A double-layer structure, engine technology, applied in combustion engines, engine components, machines/engines, etc., can solve the problem of difficult to meet the cooling effect of the nose bridge area of ​​the cylinder head, and achieve good promotion value, reasonable structure and high efficiency, and reduce heat load. Effect

Active Publication Date: 2022-08-09
HARBIN DONGAN AUTO ENGINE
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  • Claims
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AI Technical Summary

Problems solved by technology

Due to the continuous improvement of engine strengthening, the thermal load of the cylinder head is gradually increasing. However, the structure of the traditional longitudinal flow water jacket is too simple. The water inlet and outlet of the water jacket are respectively arranged at the front and rear ends of the engine. It has been difficult to meet the cooling effect on the nose bridge area of ​​the cylinder head

Method used

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  • A double-layer water jacket structure of a cylinder head for a cross-flow cooling engine
  • A double-layer water jacket structure of a cylinder head for a cross-flow cooling engine
  • A double-layer water jacket structure of a cylinder head for a cross-flow cooling engine

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Embodiment Construction

[0014] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments, based on the present invention The embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.

[0015] like Figure 1 to Figure 2 As shown, a double-layer water jacket structure for a cylinder head of a cross-flow cooling engine includes an upper water jacket 1 and a lower water jacket 2, and the upper water jacket 1 and the lower water jacket 2 are two separate individuals and both The interior is provided with a cavity for accommodating cooling water, and the upper water jacket 1 and the lower water jacket 2 are stacked up and dow...

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Abstract

A double-layer water jacket structure of a cylinder head of a cross-flow cooling engine relates to a water jacket structure of a cylinder head. The upper water jacket and the lower water jacket are stacked and fixed to form a double-layer structure. There are four groups of combustion chamber areas at the rear end, each group including a spark plug area, an intake valve area and an exhaust valve area. The bottom surface of the lower water jacket has four The upper nozzle of the cylinder head and the two upper nozzles of the water jacket, the upper water jacket and the lower water jacket are vertically connected with two water supply channels and three water supply channels, and there are five cylinder covers on the bottom surface of the lower water jacket. The water outlet and the eight water jacket water outlets are respectively provided with water flow guiding protrusions in the cavities of the upper water jacket and the lower water jacket. A double-layer water jacket structure is designed for the four-cylinder engine, which adopts the cross-flow form of water inlet on the exhaust side and water outlet on the intake side to ensure the uniformity of cooling and effectively reduce the heat load.

Description

technical field [0001] The invention relates to a cylinder head water jacket structure, in particular to a cylinder head double-layer water jacket structure for a cross-flow cooling engine, and belongs to the technical field of engines. Background technique [0002] As the core part of the engine, the cylinder head of the engine is mainly used to close the upper part of the cylinder, form the combustion chamber together with the piston and the cylinder, and withstand the gas pressure inside the cylinder. The cylinder head generally also contains air passages, which are valves and other components Provide a mounting position to ensure the normal operation of the engine. [0003] With the increasingly stringent requirements for engine power and fuel economy, small enhanced engines that incorporate technologies such as high compression ratio, high boost, and small displacement have emerged. Due to the continuous improvement of the engine strengthening degree, the thermal load ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F1/40F02F1/24F02F1/42
CPCF02F1/40F02F1/242F02F1/4214Y02T10/12
Inventor 胡祥宇王德春朱继艳牟红雨毕鸿戈于广达杜紫薇刘朋张莹南昌浩
Owner HARBIN DONGAN AUTO ENGINE
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