A continuously variable vortex generating device for a diesel engine
A generation device and diesel engine technology, applied in the direction of mechanical equipment, combustion engines, machines/engines, etc., can solve the problems of insufficient air intake, increase of air intake resistance, and failure to meet the requirements of diesel engine working conditions in time, so as to improve combustion efficiency, Reduced intake resistance and improved mixture formation
Active Publication Date: 2021-05-28
JILIN UNIV
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[0003] The publication number disclosed in the Chinese patent literature is CN204152630U, which is called "variable angle vortex generating device", and its blade angle is changed by the promotion of flowing air, which cannot meet the requirements of various working conditions of the diesel engine in time.
The guide vane structure is set in the middle of the intake port, which greatly increases the intake resistance, resulting in insufficient intake air when the diesel engine rotates at a high speed
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[0014] see figure 1 and figure 2 As shown, this embodiment includes 1, intake pipe 2, guide vane 3, blade synchronous mechanism 4, synchronous toothed belt 5, keyway 6, driving gear 7, driving cam 8, sealing strip 9, support gear 10, blade Connecting rod 11, return spring 12, driven gear 13, driven cam; wherein, the driving gear 6 and the driving cam 7 are coaxial, and the shaft is provided with a keyway 5 for connecting the servo motor to provide torque for the whole mechanism, from The driven gear 12 and the driven cam 13 are coaxial; two supporting wheels 9 are installed on the intake pipe 1 to support the rotation of the synchronous toothed belt 4, and the driving gear 6 and the driven gear 12 are connected through the meshing mode to realize the synchronous movement of the two; The guide vanes 2 have a certain twist angle, are equally spaced and obliquely embedded in the wall of the intake pipe, and the cross-sectional direction is always consistent with the normal dire...
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A continuously variable vortex generating device for a diesel engine, comprising an intake pipe, a guide vane, a sealing strip, a vane connecting rod, a vane synchronizing mechanism, a synchronous toothed belt, a driving gear, a driven gear, a driving cam, a driven cam, a return Springs and supporting gears. The driving gear and the driving cam are coaxial, and a keyway is provided on the shaft to connect the servo motor to provide torque for the whole mechanism; the driven gear and the driven cam are coaxial; two support wheels are installed on the intake pipe to support the rotation of the synchronous toothed belt , the guide vanes are equally spaced and obliquely embedded in the wall of the intake pipe, and the cross-sectional direction is always consistent with the normal direction of the circular wall of the intake pipe; the blade synchronization mechanism can make the guide vanes synchronize in the intake pipe In and out reciprocating motion. The invention can better improve the mixing of air and fuel in the cylinder, improve the combustion efficiency, and achieve the effect of energy saving and emission reduction of the diesel engine.
Description
technical field [0001] The invention belongs to the technical field of an internal combustion engine air intake system, and in particular relates to a continuously variable swirl generator for a diesel engine. Background technique [0002] The air movement state in the semi-open combustion chamber diesel engine cylinder has an important impact on the atomization, mixing and combustion of fuel. In order to improve the mixing of fuel and air in the diesel engine cylinder and improve the combustion efficiency, it is necessary to organize the intake vortex, especially the diesel engine bore When it is small, the atomization and combustion of fuel largely depend on the swirl in the cylinder. Because the general vortex intensity increases with the increase of the speed, and the vortex intensity is too strong or too weak will cause insufficient or excessive penetration of the oil beam, which will affect the formation and combustion of the mixture, so the change of the speed of the ...
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IPC IPC(8): F02B31/06
CPCF02B31/06Y02T10/12
Inventor 隗海林付长冉郭运珍程鹏李顾勇彭胜伟张松
Owner JILIN UNIV