Variable-vortex air inlet passage of multi-valve engine

A technology for air intakes and engines, which is applied in the direction of engine components, combustion engines, machines/engines, etc. It can solve the problems of reducing the flow cross-sectional area, insufficient intake air volume, and increasing the local resistance loss of intake air, so as to reduce the pumping loss , The effect of small airway flow capacity and excellent performance
CN104033237AActive Publication Date: 2014-09-10CHINA FAW LIMITED WUXI FUEL INJECTIONEQUIP RES INST +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA FAW LIMITED WUXI FUEL INJECTIONEQUIP RES INST
Publication Date
2014-09-10

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Abstract

The invention discloses a variable-vortex air inlet passage of a multi-valve engine, and belongs to the technical field of air inlet systems of internal combustion engines. The variable-vortex air inlet passage comprises an air inlet manifold, a first air inlet passage, a second air inlet passage, an air inlet adjusting channel, a vortex adjusting valve and a vortex adjusting valve shaft. The air inlet manifold is connected with the first air inlet passage and the second air inlet passage; the first air inlet passage is communicated with the second air inlet passage via the air inlet adjusting channel; the vortex adjusting valve is mounted in the air inlet adjusting channel; the vortex adjusting valve is fixed onto the vortex adjusting valve shaft and rotates around the center of the vortex adjusting valve shaft; the opening of the vortex adjusting valve can be changed along with change of working conditions of the engine. Compared with the prior art, the variable-vortex air inlet passage has the advantages that the shortcoming of deterioration of the flow capacity of an existing air passage due to severe throttle effects which are realized for airflow in the existing air passage by an air valve during variable-vortex adjustment can be overcome; pumping loss of the engine can be greatly reduced; vortex in a cylinder can be conveniently controlled by the engine under the different working conditions, combustion can be organized, and the excellent fuel economy, dynamic performance and emission performance can maintain.
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Description

technical field

[0001] The invention relates to a variable vortex intake port for a multi-valve engine, which belongs to the technical field of intake systems for internal combustion engines. Background technique

[0002] With the continuous improvement of engine power and economy requirements and the increasingly stringent emission regulations, the potential of energy saving and emission reduction in various parts of the engine is constantly being tapped. People have always regarded improving the combustion quality as the main way to improve the power and economy of diesel engines, and optimizing the formation of mixture gas is an important means to improve combustion. The main factors affecting the formation of the mixture in the direct injection diesel engine are: the kinetic energy of the oil beam, the geometric shape of the combustion chamber and the kinetic energy of the air. The kinetic energy of the air is mainly determined by the intake vortex.

[0003] In order t...

Claims

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