160results about How to "Reduce drag coefficient" patented technology

The invention relates to an automobile air-intake quantity adjusting mechanism which comprises a grilling frame and a plurality of air-intake blades; the blades are parallel to each other and the twoends of the blades are rotatably installed on the grilling frame; and the grilling frame is provided with a driving motor, an output shaft of the driving motor is connected with torsion bars parallelto the air-intake blades, the grilling frame is provided with linkage picks perpendicular to the air in-let blades in a slide mode, the torsion bars are provided with an eccentric shaft connected withthe linkage picks, the linkage picks are provided with a plurality of linkage slots which are in one-to-one correspondence to the air-intake blades, and each air-inlet blade is provided with a linkage piece correspondingly inserted into the linkage slots. The automobile air-intake quantity adjusting mechanism has the beneficial effects that an opening angle of the air-intake blades can be adjusted according to the temperature of an engine, thereby improving the working efficiency of the engine, saving oil and reducing emissions; the power of the driving motor is transmitted to the air-intakeblades through the torsion bars and the linkage picks, so that the air-intake blades are turned over to open or close; and the transmission is simple and the work is reliable.

Provided is an automotive active air-intake grille. The automobile active air-intake grille includes a grille frame and a plurality of air-intake blades; a driving motor is disposed on the middle of the grille frame, and the air-intake blades are divided into two groups and are separately located on both sides of the driving motor; an output shaft of the driving motor is connected with a central control rotating shaft, two sides of the central control rotating shaft are extended with rotating arms, the ends of the rotating arms are rotatably connected with pull rods, and the ends of the pull rods are rotatably connected with an adjacent air-intake blade or one end of a connecting rod; and each air-intake blade is provided with an eccentric shaft, the eccentric shafts of the air-intake blades on the same side are connected with the same connecting rod in a rotation mode. The automobile active air-intake grille has the beneficial effects that an opening angle of the air-intake blades canbe adjusted according to the temperature of an engine, thereby improving the working efficiency of the engine, saving oil and reducing emissions; the power of the driving motor is transmitted to theair-intake blades through the central control rotating shaft, the pull rods and the connecting rods, so that the air-intake blades are turned over to open or close; and the transmission is simple andthe work is reliable.

The invention provides an additional variable active intake grille and an vehicle, which relates to the automobile field. The additional variable active intake grille includes a variable active intakegrille frame having a plurality of air inlets; Each air inlet of the variable active air intake grille frame is provided with a rotatable variable active air intake grille blade group; Each set of the variable active intake grille blade sets includes a plurality of variable active intake grille blades; The variable active intake grille is also provided with a driving mechanism for driving a plurality of the variable active intake grille blades to rotate synchronously. The automobile includes a fixed intake grille, and further includes an additional variable active intake grille as described above, the additional variable active intake grille being mounted behind the intake direction of the intake grille, and the inlet of the additional variable active intake grille being sealingly connected to the inlet of the intake grille. The invention solves the technical problem that the wind resistance of the existing automobiles is large.