Anti-knock engine

An engine and cylinder technology, applied in the field of anti-knock engines, can solve problems such as increased thermal load and mechanical load, increased tendency of gasoline engine knock, cracking of cylinder head, etc., to strengthen the vortex in the cylinder to promote the formation of mixture gas and the flow of intake air The effect of large cross-section and reasonable structure design

CN107725169AInactive Publication Date: 2018-02-23CHONGQING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-02-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an anti-knock engine. The anti-knock engine comprises a cylinder and an air cylinder cover, wherein a combustion chamber corresponding to an air cylinder on the cylinder body is formed in the air cylinder cover, and a first sparking plug facing the corresponding air cylinder is mounted in the middle of the combustion chamber; the engine also comprises a valve group arrangedon the combustion chamber and is characterized in that the valve group comprises at least two exhaust valves adjacent in the peripheral direction of the corresponding air cylinder, a second sparkingplug is also arranged between any two adjacent exhaust valves and located on one side, away from the first sparkling plug, of the two exhaust valves. The anti-knock engine has the advantages that thestructure design is reasonable, the air inlet circulation section is larger, a high-temperature area and tail gas in the cylinder body can be scavenged and cooled, eddy current in the cylinder body isenhanced to promote forming of mixed gas, the anti-knock effect is good and the like.
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Description

technical field

[0001] The invention relates to the technical field of engines, in particular to an anti-knock engine. Background technique

[0002] At present, gasoline engines usually use technologies such as multi-valve structure, supercharging technology or high compression ratio to improve the gas charging efficiency, combustion efficiency and reduce the emission of harmful substances. However, the use of supercharging technology or high compression ratio technology will increase the knocking tendency of gasoline engines, increase thermal load and mechanical load, cause unstable engine operation, decrease combustion efficiency, and increase harmful emissions. Severe knocking will also cause engine damage. Cylinder scuffing, crank connecting rod mechanism failure, etc. The use of multi-valve structure will also increase the thermal stress in the nose bridge area between the exhaust valve seats, which will lead to the deformation of the exhaust valve seats, air leakage a...

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with embodiment.

[0018] During specific implementation: if Figure 1 ~ Figure 3 As shown, a knock-proof engine, the cylinder head 1 has a combustion chamber corresponding to the cylinder on the cylinder block, the middle part of the combustion chamber is equipped with a first spark plug 2 facing the corresponding cylinder, It also includes a valve group arranged on the combustion chamber, the valve group includes two exhaust valves 3 and three intake valves 5 arranged adjacent to each other along the circumference of the corresponding cylinder, the intake valves 5 and exhaust valves 3 are arranged along the circumferential direction of the corresponding cylinder, and the two exhaust valves 3 and the three intake valves 5 are respectively located on both sides of the symmetrical central plane of the corresponding cylinder. A second spark plug 4 is further arranged between any two adjacent e...