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

A hydrokinetic water turbine system includes a frame structure, first and second shafts rotatably supported by the frame structure, and first and second rotors secured to the first and second shafts respectively and each having a plurality of spaced-apart blades so that the flowing stream of water revolves the first and second rotors about a central axis of the first and second shafts respectively. The first and second shafts are horizontally-disposed and coaxial and the first and second rotors are adapted to rotate in opposite directions. The blades are hollow and filled with a foam material to reduce weight and increase buoyancy. The frame structure is a substantially rectangular and open frame structure and includes frame members adapted to reduce a coefficient of drag of the frame structure. The frame members can be hollow and filled with a foam material to reduce weight and increase buoyancy.

The invention discloses a wire-tubular-type low temperature plasma unit reactor for treating industrial waste gases and an assembly system thereof. The unit reactor is composed of a reactor positive electrode, a circular pipe external electrode and a sealing ring. The reactor positive electrode is formed by central electrodes with different types and insulation components. The insulation supports on the insulation components are stuck into rolled steel grooves of the circular pipe external electrode to form the unit reactor. According to actual requirements of waste gas treating engineering, N unit reactors are employed to be assembled in series and parallel ways and a reactor matrix is formed. The reactor matrix and compression screws are assembled to form a single-box reactor through reactor supporting plates. The single-box reactors are connected in series and electrically connected through box body seal heads and box body flanges and a reactor assembly system is formed. The assembly system is suitable for treatment of various gases with peculiar smell, high-humidity?gases and smoke zones in different quantitative grades. The product is advantaged by safety, energy saving and environmental protection, the flexibility of the system layout is strong, the adaptive condition range is wide and the service life is long.

The invention provides a ventilating system for a vehicle. The ventilating system for the vehicle comprises an air inlet, a first air duct and a guide switch, wherein the air inlet is used for receiving outside air; the first air duct communicates with the air inlet and leads to an engine compartment; the guide switch is used for selectively closing and opening the first air duct; and the outside air enters the engine compartment through the first air duct when the first air duct is opened. By adoption of the ventilating system for the vehicle, a reasonable and effective ventilating management means which gives consideration to both the heat dissipation efficiency and the drag coefficient is provided. The wind resistance can be reduced when the vehicle travels at a high speed, and oil consumption is reduced accordingly when the vehicle travels at a high speed. Meanwhile, circulation of airflow in the engine compartment can be improved when the vehicle travels at a low speed, and the risk of heat damage in the engine compartment is lowered.

The invention relates to a suspension damping electric wheel. The suspension damping electric wheel is characterized by comprising an inner steel ring; an inner bearing, an electromagnetic brake, a bearing gland, a hub motor stator, a hub motor rotor, a tire rim and a tire are arranged outside the inner steel ring; a suspension damper is arranged in the inner steel ring, a damping assembly comprises a shell, and a guide column lubrication sleeve, a guide sleeve, a damping spring and a guide column are arranged in the shell; the shell is connected with a suspension assembly through a linkage frame, and the suspension assembly comprises an upper end cover and a lower end cover; a guide rod and a suspension spring are arranged between the upper end cover and the lower end cover, a guide pipe and a guide rod lubrication pipe are arranged outside the guide rod, and a connecting shaft is arranged in a suspension base arranged on an electric car; the electromagnetic brake comprises the bearing gland, and an electromagnetic brake movable ring is arranged in the bearing gland; and an electromagnetic brake limiting guide column is arranged outside the inner steel ring, an elastic sealing ring is arranged between the electromagnetic brake limiting guide column and an electromagnetic brake stretching guide pipe, the electromagnetic brake stretching guide pipe is connected with an electromagnetic brake stretching fixing support, an electromagnet core and an electromagnet coil are arranged outside the electromagnetic brake stretching fixing support, and the electromagnet coil is connected with the hub motor stator.

The invention discloses an anti-drag device capable of adjusting the wheel spoke hole area automatically, and relates to an anti-drag device capable of changing the hole area between spokes automatically according to the automobile speed. The anti-drag device solves the problem that the wind drag coefficient of a wheel and fuel consumption are enlarged when an automobile is driven at high speed due to the fact that air eddy is generated in a wheel cavity or positions nearby with the existence of a hole between the spokes. The anti-drag device is composed of a supporting frame, foliated cover plates and connecting transmission parts arranged between the supporting frame and the foliated cover plates, the supporting frame is fixed on a wheel hub and is located between a brake disc flange and the wheel hub, and the foliated cover plates are capable of rotating around the supporting frame. The anti-drag device does not work when the automobile speed is lower so that heat generated by frequent braking of the automobile can be emitted effectively and cannot influence the automobile. The anti-drag device is capable of decreasing the hole area between the wheel spokes automatically along with the increase of the automobile speed until the wheel hole is close to entirely closed, so that the wind drag coefficient of the automobile wheel is reduced greatly, fuel consumption is reduced, and the automobile fuel economy is improved.

The invention belongs to the technical field of an intake grille of a vehicle, and aims at solving the problem of poor sealing performance of an existing intake grille assembly. Therefore, the invention provides an intake grille assembly and a vehicle provided with the intake grille assembly. The intake grille assembly comprises a grille frame, an air inlet of which is provided with a mounting seat. A blade is rotatably mounted to the mounting base, a set gap is arranged between the end of the mounted blade body the bottom surface of the mounting base; a drive member is used for driving the blade to rotate to open or close the air inlet; wherein the end of the body extends toward the axial end of the rotating shaft to form a sealing rib, and the mounting seat is formed with blocking portions on both sides of the axial hole, and the sealing rib can abut or separate from the blocking portion during the rotation of the blade. The intake grille assembly of the invention can effectively improve the sealing effect of the blades, thereby reducing the wind resistance in the driving process of the automobile, further improving the fuel performance of the engine, reducing the fuel consumption of the engine, reducing the driving cost, or increasing the range of the electric vehicle.

The invention provides an electric control automobile door handle system, an automobile door opening and locking method and an automobile. The situation that in the past, after people get on or off the automobile, an automobile door needs to be locked immediately, and stealing is prevented is changed, the wind resistance coefficient of the automobile is effectively reduced, and the fuel economy of the automobile is improved. The automobile door handle system is characterized in that an automobile door handle is arranged on a sliding base and sleeved with limiting nuts, motors are arranged on inner threads of the automobile door handle and fixedly connected with the sliding base, a limiting bolt is installed on the side face of the sliding base through a long round hole in an automobile door outer plate, the sliding base and an automobile door inner plate are connected together through springs, and a small short piece with a round hole in the sliding base is used for being connected with a rod system of an automobile door lock. When the door is closed, the automobile door handle and the automobile door outer plate are in an integral plane. When the automobile door needs to be opened, a remote controller receives an instruction and sends signals to a control motor, the motors drive the automobile door handle to move outwards at the same time till limiting pieces are blocked by the sliding base, and the handle is pulled by hand to open the door.

The invention provides an air flow adjustment type car tail spoiler, and relates the technology of automatic displacement of the car tail spoiler. The air flow adjustment type car tail spoiler is composed of a spoiler sheet and two spoiler sheet supporting frames, and is characterized in that the two spoiler sheet supporting frames are symmetrically arranged at the two ends of the upper portion of a car tail box, and the spoiler sheet is hinged to the spoiler sheet supporting frames through a front connecting rod and a rear connecting rod, and is capable of moving front and back along the upper end surfaces of the spoiler sheet supporting frames under the support of the front connecting rod and the rear connecting rod. The air flow adjustment type car tail spoiler has the advantages of being novel in structure, low in cost, safe, reliable, and good in economy, aesthetics and safety and the like, thereby integrating economy and practicability.

The invention discloses a high-speed optical delay linear scanning device, which comprises a fan-blade-shaped reflector, a quarter-wave plate, a polarizing beam splitter and a motor. The fan-blade-shaped reflector is formed by a plurality of same fan-blade-shaped reflection planes and a base circle coaxially with the centers of the fan-blade-shaped reflection planes. Each fan-blade-shaped reflection plane adopts an outer curved surface of a base circle involute; the plurality of fan-blade-shaped reflection planes are in uniform-angle distribution in the circumference of the base circle. A cylindrical mirror, the quarter-wave plate and the polarizing beam splitter are arranged in sequence, and the direction of optical axis thereof is overlapped with the tangent line of the base circle; and when incident to the polarizing beam splitter, S-polarization incident light is refracted thereby first, then, passes through the quarter-wave plate and the cylindrical mirror in sequence, is incident to the outer surface of the fan-blade-shaped reflector, then, is reflected back in the same way, and then, passes through the cylindrical mirror, the quarter-wave plate and the polarizing beam splitter in sequence to form P-polarized emergent light.

The invention relates to vehicle-mounted electronic systems, and discloses a vehicle-mounted electronic rearview mirror head-up displaying device. The vehicle-mounted electronic rearview mirror head-up displaying device comprises a first camera, a second camera, a third camera, an image processor, a projection device connected with the image processor and a front windshield. The first camera, the second camera and the third camera are configured with A/D converters respectively, and the A/D converters on the first camera, the second camera and the third camera are connected with the image processor. Traditional inner and outer rearview mirrors are replaced with the cameras, collected image information is imaged right in front of a driver, the driver can conveniently monitor view fields behind and on the two sides of a vehicle under the right view condition, reaction time is shortened in the back up and lane changing process, and traffic accidents are reduced. The cameras are all small, exquisite and easy to arrange, and the drag coefficient and orthographic projection area of the whole vehicle are reduced. The shooting range is greatly widened, and the view blind area is lowered. Percentile position adjustment caused by different human bodies can be avoided.

The invention discloses an automobile and a 360-degree panoramic display system thereof. The 360-degree panoramic display system comprises a panoramic camera and a display device; the panoramic camerais arranged on the outer portion of an automobile body of the automobile and used for acquiring a panoramic image surrounding the automobile body by 360 degrees outside the automobile body; and the display device is used for displaying the panoramic image in real time. The defect that the safety of an automobile in the prior art is low can be overcome, the sight of a driver cannot be blocked, thecondition outside the automobile can be observed in all directions from the position in the automobile, safe driving is guaranteed, in addition, the driver can drive the automobile in a lying posture, the height of the automobile body can be greatly reduced, the wind drag coefficient of the automobile is greatly reduced, and fuel consumption is reduced.

The novel bridge vortex-induced vibration suppression device is characterized in that the novel bridge vortex-induced vibration suppression device comprises a plurality of suppression assemblies composed of protective railings and grids, the protective railings are longitudinally arranged on a bridge floor main beam, heightening grids are transversely arranged at the bottoms of the protective railings, and the grids are transversely arranged at the upper portions of the protective railings; the centers of the two ends of the grid and the heightening grid are movably connected with the protective barrier and can be turned over and opened around the joint. According to the utility model, the formation of vortex vibration is inhibited from the source, the grid can be completely opened at a dangerous wind speed, the wind drag coefficient is reduced, the main beam is prevented from being subjected to an overlarge wind drag load, and the opening height of the grid can be adjusted in a targeted manner by the intelligent grid according to the condition of the wind speed, so that the generation of eddy current of the whole bridge is better inhibited. The system is an important component ofan intelligent control system.

The invention discloses a floor type multi-rope oil extractor system. The system comprises an oil extractor main body, a gas injection thermal recovery oil extracting pump and a packer module; the oilextractor main body is connected with the gas injection thermal recovery oil extracting pump through a traction system thereof; the gas injection thermal recovery oil extracting pump is connected with the packer module through a hand-free joint; the oil extractor main body comprises a concrete foundation, a shifter guide rail, a rail clamper module, a control cabinet, a bracket, an adjustable balance counterweight, an upper platform, an upper guard combination, a power device, a brake, the traction system and an elevator; the traction system comprises a traction wheel, a steel wire rope, a movable pulley set and a steel wire rope joint; the steel rope is divided into an elevation steel wire rope and a balance steel wire rope; one end of the elevation steel wire rope is fixed on the traction wheel and bypassed through the traction wheel, and the other end is fixedly connected with the steel wire rope joint on the bracket through the elevator and the movable pulley on the elevator; andthe balance steel wire rope is opposite to the elevation steel wire rope, one end is fixed on the traction wheel and bypassed through the traction wheel, and the other end is fixedly connected with the steel wire rope joint on the bracket through the adjustable balance counterweight and the movable pulley on the adjustable balance counterweight.

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.

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.

A solar condensation device comprises a machine frame and a reflection mechanism installed on the machine frame. The reflection mechanism moves to trace the sun and condense sunlight onto an object to be heated and comprises a left-right rotation frame, a plurality of reflector mechanisms and a front-back motion link. The left-right rotation frame is arranged between a machine frame front side and a machine frame rear side, has a central axis and can rotate around the central axis. The reflector mechanisms are installed on the left-right rotation frame and respectively comprise a transverse rod, a shaft coupling, a vertical rod and a reflector, wherein each transverse rod has a transverse rod axis, and each shaft coupling has a shaft coupling axis. The solar condensation device has the advantages of being simple in structure and convenient to install.

The invention provides a grid control method of a vehicle and the vehicle, and belongs to the field of vehicles. The vehicle comprises an intercooler and a grid located in front of the intercooler. The grid control method comprises the following steps that the engine speed and the engine torque of the current vehicle are acquired; the target outlet temperature of the intercooler with the corresponding relation is found out from a pre-established relation table according to the acquired engine rotating speed and engine torque, wherein the corresponding relations between different engine rotating speeds and engine torque and the corresponding target air outlet temperatures are stored in the relation table in advance; and the opening degree of the grid is controlled according to the target air outlet temperature. The invention further provides the vehicle. A controller of the vehicle is used for executing the above steps. According to the grid control method and the vehicle, the combustion of an engine can be enhanced, the air loss of an air inlet pump can be reduced, and then the fuel economy of the engine can be further improved.