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Novel efficient spark ignition engine

An engine, ignition technology, applied in combustion engines, internal combustion piston engines, engine components, etc., can solve the problems of high thermal efficiency, unreachable, etc., and achieve the effect of improving thermal efficiency, simple structure, and improving piston cooling function.

Pending Publication Date: 2020-10-09
AVL LIST TECHN CENT SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a novel high-efficiency spark-ignition engine to solve the problem that the traditional spark-ignition engine proposed in the above background technology cannot achieve higher thermal efficiency by using the technology of tumble mixed gas in the cylinder

Method used

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Embodiment

[0033] see Figure 1-7 , the present invention provides a technical solution: a novel high-efficiency ignition engine, comprising:

[0034] Four-valve cylinder head 1, the interior of the four-valve cylinder head 1 is cast and integrated with two vortex intake ports;

[0035] In-cylinder air mixture ignition mechanism composed of double spark plugs 12;

[0036] Combustion chamber composed of cylinder block 2, piston 10, four-valve cylinder head 1, intake valve 3 and exhaust valve 4 components.

[0037] Further, the two swirl inlets include an outer swirl inlet 7 and an inner swirl inlet 8, and the outer swirl inlet 7 and the inner swirl inlet 8 connect the combustion chamber to the intake manifold. The tubes form the engine intake passages.

[0038] Further, the two vortex inlets are arranged in a separate manner, and the air is respectively taken from the intake manifold, and the two vortex inlets are respectively fed in, thereby avoiding airflow interference.

[0039] Fu...

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Abstract

The invention belongs to the technical field of engines, and particularly discloses a novel efficient spark ignition engine. The novel efficient spark ignition engine comprises a four-valve cylinder cover, an in-cylinder mixed gas ignition mechanism composed of double spark plugs, and a combustion chamber composed of components of a cylinder body, a piston, a four-valve cylinder cover, an intake valve and an exhaust valve, wherein two eddy intake channels are casted and integrated in the four-valve cylinder cover. The design of two separate eddy air channels avoids the flow interference of twoair flow in the air channels, the flow direction of the intake of the two air channels are rotated along the inner wall of a steam cylinder and enhanced mutually, a cylindrical or conical convex structure is adopted on the combustion chamber at the top of the piston, a high compression ratio can be maintained, meanwhile the eddy strength is maintained to the maximum extent during the compressionstroke of the engine, a double-spark plug ignition system is arranged for the combustion chamber, the flame propagation distance after ignition is shortened, the ignition duration is shortened, and the thermal efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a novel high-efficiency ignition-type engine. Background technique [0002] The fuel consumption rate is an important index for assessing the automobile engine. During the ignition process of the engine, the air flow in the combustion chamber can be optimized, and the intake vortex can be increased to fully mix the fuel and air, so as to meet the conditions for complete combustion of the mixture as much as possible to achieve Higher thermal efficiency. [0003] The flow mode of the mixed gas tumble flow in the traditional spark-ignited engine makes more use of the vortex in the cylinder to form a stronger air flow, so that the mixed gas in the cylinder is evenly distributed, but the potential for increasing the tumble flow intensity in the cylinder is limited, which makes the ignition further accelerated After the flame propagation speed is limited, the thermal efficiency of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B31/00F02B23/10F01P3/08F02F1/24F02F1/42F02F3/22F02F3/26F02F3/28
CPCF01P3/08F01P2003/006F02B23/101F02B31/00F02B2023/102F02B2023/108F02F1/242F02F1/4235F02F3/22F02F3/26F02F3/28Y02T10/12
Inventor 李伟吴学成
Owner AVL LIST TECHN CENT SHANGHAI
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