44 results about "Pneumatic motor" patented technology

This invention relates to the field of nuclear power plant maintenance equipment, and more particularly to a pneumatic wrench for rotating the main nut in a pressurized water reactor nuclear power plant. The pneumatic wrench includes: a guide rod connected to the lower end of a first sleeve; a second sleeve mounted on the outer surface of the guide rod's side end, with a third sleeve connected to its lower end; a fixing plate connected to the outer surface of the second sleeve's side end, with a small gear and a transition gear mounted on the upper part of the fixing plate, a pneumatic motor connected to the upper end of the small gear, a large gear ring on one side of the transition gear, a sleeve connected to the lower end of the large gear ring, a bearing installed at the connection between the sleeve and the second sleeve, an inner liner inside the sleeve, a limit block connected to the side end of the inner liner, a groove formed at the connection between the limit block and the large gear ring, a main nut inside the limit block, a main bolt inside the main nut, and a connecting seat connected to the upper end of the main bolt; a connecting plate connected to the outer surface of the first sleeve's side end, with pins installed on the connecting seat and the connecting plate. This invention can disassemble and assemble various types of nuts, and has a wide range of applications.

A wind-based power generation system including a base, a plurality of towers including a plurality of turbines, at least one pneumatic pump, at least one pneumatic motor, at least one pneumatic generator, an air storage chamber, and a tail component. The wind-based power generation system receives wind via the plurality of turbines and transmit the airflow to pneumatic pumps and motors to power a generator.

The utility model discloses a numerical control lathe quick polishing frock relates to polishing frock technical field, including numerical control lathe, the chuck of numerical control lathe is provided with clamp mechanism, the tool rest sliding seat of numerical control lathe is hinged to have the drag board, the top of drag board is provided with first polishing mechanism and second polishing mechanism, first polishing mechanism includes fixed base, the top of drag board is hinged with fixed base, this device drives chuck to rotate with the workpiece through numerical control lathe, utilizes motor to drive driving wheel rotation, and driving wheel drives abrasive belt to polish the outer cylindrical surface of workpiece through the cooperation of driven pulley, and then utilizes pneumatic motor to drive polishing rod to polish the end surface of workpiece, has realized to the efficient polishing of workpiece outer cylindrical surface and end surface, has improved polishing precision and product qualification rate significantly, reduces the labor intensity simultaneously, avoids the problem that the labor intensity is big, and precision is difficult to control in traditional manual polishing.

This invention relates to an integrated gas-liquid separation pulsed negative pressure system for biopsy and transport, comprising a front-end puncture assembly, a mid-end collection and filtration assembly, and a rear-end pulsed negative pressure power assembly. The front-end puncture assembly includes a hollow puncture needle and a hollow handle, with a standard negative pressure interface at the tail of the handle. The mid-end collection and filtration assembly is primarily a collection bottle, with a liquid and air inlet and a negative pressure suction port at the top. Inside the collection bottle is a central interception filter for intercepting solid tumor tissue, below which is a waste liquid sedimentation zone for blood / exudate. The rear-end pulsed negative pressure power assembly is primarily a high-frequency pulsed pneumatic motor connected to the negative pressure suction port. This invention achieves precise two-handed manipulation, stable triggering, pulsed negative pressure separation sampling, efficient specimen collection, and direct transport for testing.

A pneumatic hand-held piston tightening device, comprising a pneumatic wrench, characterized in that the pneumatic wrench comprises a bottom handle, a swing head is rotatably installed at the top of the bottom handle, a rotary connecting part is installed at the bottom of the swing head, an upper air channel is arranged at the bottom of the rotary connecting part, a pneumatic motor is installed at the top of the upper air channel, an output shaft is connected to the pneumatic motor, and a tightening tool is installed on the output shaft. The utility model discloses an external air inlet at the bottom handle air inlet, and after control, the gas passes through the lower air channel and is introduced into the swing head, the pneumatic motor in the swing head rotates to drive the output shaft, the tightening tool installed on the output shaft clamps and tightens the piston, the setting of the pneumatic wrench can adjust the tightening torque, the tightening tool is convenient for clamping and tightening the piston rod, the machining groove arranged in the tightening tool can clamp the piston rods of different sizes, the piston rod is conveniently placed in the machining groove and is fixed relative to the machining groove, and the working efficiency is improved.

The utility model discloses a kind of driving structure of pneumatic monorail crane, include track, drive frame, rack, driving component and brake component, wherein, track both sides are equipped with sliding groove, top surface fixed rack, support roller on drive frame is embedded in sliding groove, in addition, each group of rack is equipped with a set of driving component, including pneumatic motor, speed reducer, worm worm wheel and walking gear, pneumatic motor power is transmitted to worm through speed reducer, worm drives worm wheel, worm wheel drives walking gear and rack meshing, realizes rack linear motion, brake component contains brake cylinder, brake shoe and spring, cylinder pushes brake arm to make brake shoe clamping tight track brake, spring reset releases brake, enhance safety and stability, the design combines gear rack antiskid, self-locking anti-falling and double brake, suitable for high stability requirement crane scene.

A non-electric robotic crawler platform system and method for logically controlling a pneumatically driven multidirectional multi-motor crawler platform in a confined space that can include Zone 0 and 1 spaces. The system can include a robotic crawler platform and an air logic control system. The robotic crawler platform can include wheels and pneumatic motors. The pneumatic motors can be connected to the wheels. Wheels can be polymer, magnetic, rollers, sprockets for track driven system and other motion systems. The air logic control system can be in fluid communication with the pneumatic motors. The robotic crawler platform and the air logic control system are non-electric. The robotic crawler platform and the air logic control system are made from materials having anti-static properties. A user can provide motion control input to the air logic control system to control directional motion of the robotic crawler platform by controlling any one of or any combination of the pneumatic motors in either a forward or reverse rotation direction. Precision can be obtained through flow / pressure controls either onboard the robotic platform to the motors or exhaust controls plumed exhaust flow regulators from the air piloted shuttle valves.

The application discloses a long-distance conveying mine pneumatic retardant pump and relates to the technical field of mine fire prevention and extinguishment. The long-distance conveying mine pneumatic retardant pump comprises a vehicle body, a material cylinder and a pneumatic motor on the vehicle body top, a gas pump on the vehicle body bottom, a spray gun on a side mounting plate, a support plate, a support rod, a driving gear and a horizontal displacement reversing assembly of a stable swing and combustion suppressing component, a slide rod, an opening and closing block, a spray pipe and a swing separation assembly of a stop swing flow breaking component, and a connecting rod and a plugging block. When the retardant is sprayed in the underground coal mine, the horizontal displacement reversing assembly forces the complete swing of the spray gun and avoids the backtracking, the unblocking block cooperates with the opening and closing block and the spring II realizes the spraying during the swing and the flow breaking during the stop swing, the connecting rod and the plugging block block the spray hole and clean during the stop spraying, so that the spraying is uniform, complete and pollution-free, the spraying behavior is forcedly regulated from the mechanical level, and the fire prevention and retardant capacity of the retardant is improved.

This utility model relates to a discharge valve with a crushing and granulating device, comprising a housing and a baffle plate rotatably disposed within the housing for blocking the first discharge port. The crushing and granulating device is mounted on the baffle plate. The crushing and granulating device includes a pneumatic motor, a connecting shaft, and a blade assembly. The pneumatic motor is mounted on the outside of the housing. One end of the connecting shaft is connected to the output end of the pneumatic motor, and the other end is connected to the blade assembly. The blade assembly, driven by the pneumatic motor, is used for crushing and granulating materials. This utility model integrates crushing and discharge functions, achieving efficient crushing and granulation.

The utility model discloses a kind of passenger car pneumatic motor systems, including air compressor, air tank and gas module, air compressor is connected with air tank and gas module respectively by distribution valve group and supplies gas for it, distribution valve is connected with several pneumatic motor, and pneumatic motor is used to drive the execution module of vehicle work, the utility model replaces the power source for driving execution mechanism operation by common electric motor into pneumatic motor, and using the air supply unit of vehicle carries out air supply to pneumatic motor, on one hand, compared with electric motor, pneumatic motor can use simple flow control valve to realize system control, without equipping complex electronic control system, simple structure, subsequent maintenance cost is less, purchase cost also compared with electric motor has reduced, can effectively reduce the cost of operation execution unit, and more conducive to the demand of vehicle light weight;On the other hand, multiple execution mechanism can share a set of air supply unit, improve the utilization of air supply unit, strong applicability.

This utility model relates to the field of road bike technology and discloses a semi-pneumatic road bike for racing. The connecting shaft has locking nuts threaded to both ends. A sleeve is rotatably mounted on the outer side of the connecting shaft via a bearing. A flywheel disc is fixedly mounted on one end of the sleeve, and a brake pad is fixedly mounted on the other end. A connecting rod is movably mounted on the top of the rear fork via a hinge. A fixed housing is fixedly mounted on the other end of the connecting rod. An extension rod is fixedly mounted on the side of the fixed housing. A pneumatic motor is detachably mounted inside the fixed housing. A drive gear is fixedly mounted on the output end of the pneumatic motor, and an auxiliary gear meshes below the drive gear. This application achieves semi-pneumatic control of the cylinder and pneumatic motor through manual operation of multiple control valve assemblies, combining manual operation control with pneumatic assistance to ensure time and effort savings during riding.

This utility model relates to the technical field of textile machinery and discloses a yarn bundle straightening device for a yarn bundling dyeing machine. The device includes a frame symmetrically arranged on both sides, with two supports fixed to the left and right sides respectively. A warp beam is placed on each support, and a yarn bundle is wound around the warp beam. Horizontal beams are fixed to the front and rear of the frame, with symmetrically positioned fixed shafts on each beam. Guide rollers are mounted on the fixed shafts. A hexagonal vibrating roller is mounted at the top center of the frame via a bearing seat. The central shaft of the hexagonal vibrating roller is connected to the output shaft of a pneumatic motor via a coupling. The pneumatic motor is fixedly mounted to the frame via a base and electrically connected to an electrical box. This utility model achieves real-time automatic compensation of yarn unwinding tension, balances the tension distribution between yarns, significantly reduces the probability of yarn tangling and entanglement, and effectively improves the dyeing uniformity in the subsequent pad dyeing process.

This utility model provides a pneumatic hydraulic bolt tensioner pump station, including an oil tank, a support plate, a hydraulic pump body assembly, and a hydraulic valve block assembly. The oil tank stores hydraulic oil. The support plate is sealed and fixed to the opening at the upper end of the oil tank. The hydraulic pump body assembly is located inside the oil tank and fixed to the lower end of the support plate. The hydraulic valve block assembly is fixed to the upper end of the support plate and connected to the hydraulic pump body assembly. The pneumatic hydraulic bolt tensioner pump station also includes a pneumatic motor and a valve assembly. Both the pneumatic motor and the valve assembly are fixed to the upper end of the support plate. The hydraulic pump body assembly is connected to the drive end of the pneumatic motor, and the air inlet end of the pneumatic motor is connected to the air outlet end of the valve assembly. By using a pneumatic motor as the power source to drive the hydraulic pump body assembly, this utility model can effectively improve the explosion-proof performance of the pneumatic hydraulic bolt tensioner pump station, enabling it to be safely used in scenarios with high explosion-proof requirements.

The application provides a magnetic resonance compatible swing pneumatic motor, which comprises a first tooth-shaped driving block, a second tooth-shaped driving block, a movable platform, a fixed platform and a pneumatic driving device, the movable platform is rotationally arranged on the fixed platform, and the first tooth-shaped driving block and the second tooth-shaped driving block are both arranged in the fixed platform; the first tooth-shaped driving block and the second tooth-shaped driving block both comprise driving teeth arranged oppositely, the first hollow structure is arranged between the oppositely arranged driving teeth of the first tooth-shaped driving block, the second hollow structure is arranged between the oppositely arranged driving teeth of the second tooth-shaped driving block, one end of the movable platform comprises a bidirectional tooth surface, and the bidirectional tooth surface is accommodated in the first hollow structure and the second hollow structure; the pneumatic driving device drives the first tooth-shaped driving block and the second tooth-shaped driving block to reciprocate along a first direction respectively, and drives the movable platform to reciprocate along the arc-shaped trend of the bidirectional tooth surface relative to the fixed platform.

A kind of drum pneumatic door device, including the drum with feeding opening, the outer wall of drum is fixed with two parallel tracks in circumferential direction, drum door is slidably installed in the inside of track, the inside of track is equipped with inflatable rubber strip, the outer wall of drum is fixed with pneumatic motor, pneumatic motor is configured to drive drum door to move along track between closed position and open position, and when drum door is located in closed position, feeding opening is closed by drum door, when drum door is located in open position, feeding opening is opened, through the cooperation of air pump, pneumatic motor, actuator and limit rod, through electric signal input, air pump carries out pumping or pumping operation, and through the cooperation of pneumatic motor and actuator, the opening and closing of drum door and the inflation and deflation of inflatable rubber strip are completed, without using manpower to open and close drum door, solve the problem of time-consuming and laborious of feeding operation personnel to open and close drum door.

This utility model relates to the field of pneumatic tool technology, and in particular to a blade mounting structure for an eccentric movable vane pneumatic motor. The utility model mainly consists of a stator, rotor, radial groove, first permanent magnet, spring, second permanent magnet, blade, oil guide block, and wear-resistant rubber block. These components work together. By adding a first and second permanent magnet, capable of generating repulsive force, to the radial groove of the rotor, the reliability of the reciprocating radial displacement of the blade is ensured in conjunction with the spring. An oil storage chamber is provided in the blade to store lubricating oil. A wear-resistant rubber block is installed on the outer end of the blade via a snap-fit ​​oil guide block. The oil guide groove in the oil guide block directs the oil from the storage chamber into the wear-resistant rubber block. The oil-soaked wear-resistant rubber block replaces the blade in contact with the inner wall of the stator. The wear-resistant rubber block has self-deformation capability, preventing damage when in contact with the inner wall of the stator. Simultaneously, the lubricating oil further enhances the lubrication effect.

The utility model discloses an intelligent ration filling device for ice cream production, including support, cup cover seat, lay the board, assembly seat, feeder, filling machine, the cup body seat is installed on the upper edge of support, cup cover seat is installed to the support, and lay the board is connected in the inside of support, and the lay board surface is equipped with the cup hole, and the first air cylinder is installed to the lay board lower surface, and the first air cylinder is connected with the suction piece through the first adapter plate, and the assembly seat is connected with cup cover seat, and the assembly seat is connected with the second air cylinder, and the second air cylinder is connected with the pneumatic motor through the second adapter plate, and the pneumatic motor also is connected with the suction piece, through cup cover seat and cup body seat, can lay multiple cup cover and cup body, and the first air cylinder controls the suction disc to suck the cup body and sends to the lay board, and the cup body is sent to the plunger pump below and carries out the snow mud soft ice filling, then the cup body is sent to the cup cover below, and the second air cylinder cooperates with the pneumatic motor and adjusts the cup cover position and covers to the cup body, can seal the cup body in time, and the degree of automation is higher.

This utility model relates to an automatic sandblasting device for a sandblasting machine, comprising a housing and a working platform, with a frame mounted on the working platform. Multiple sandblasting components are mounted on the frame, which also has a feeding channel. Each sandblasting component includes a first air blowing component and a second air blowing component, sequentially arranged on the frame along the conveyor belt's running direction. The first air blowing component includes a first fixed nozzle plate and multiple first universal adjustable nozzles. The second air blowing component includes a pneumatic motor fixed to the frame, a second fixed nozzle plate fixed to the output end of the pneumatic motor, and multiple second universal adjustable nozzles mounted on the second fixed nozzle plate and capable of omnidirectional rotation. Each first universal adjustable nozzle blasts the blind holes of each product in the feeding tray of the feeding channel, while each second universal adjustable nozzle blasts the surface of each product through the pneumatic motor driving the second fixed nozzle plate. This utility model features an ingenious structure and is convenient and practical.

The application provides a pneumatic house spraying device, which comprises a frame, a containing box, a driving device and a paint spraying device, a one-piece protective shell is sleeved with the frame, the containing box is arranged in the protective shell and is fixedly connected with the frame, the driving device is located at the bottom of the frame and provides power for the frame, the paint spraying device is located at the front end of the frame and is connected with the containing box, the driving device comprises a pneumatic motor, two driving wheels and two driven wheels, the pneumatic motor is fixedly connected at the bottom of the frame, the driving wheels and the driven wheels are both located at the bottom of the frame, the two driving wheels are connected with the driving end of the pneumatic motor through rotating shafts, one side of the protective shell is provided with a main air pipe joint, and the main air pipe joint is connected with the input end of the pneumatic motor through an air pipe. The pneumatic house spraying device can avoid static electricity, accelerate the efficiency of factory roof spraying, and reduce the cost and time of factory roof spraying.

This utility model provides a small drilling device for blasting and drilling in coal mines, including a movable base, a movable mechanism mounted on the movable base, a pneumatic drill, and a drill rod stabilizing mechanism. The movable mechanism includes a movable frame, two parallel connecting rails, a pneumatic telescopic rod, and a threaded rod fixedly connected to the shaft of the pneumatic motor. The bottom surface of the movable frame has a groove corresponding to the connecting rail, which mates with the connecting rail. The rear side of the base is fixedly connected to the front end of the pneumatic telescopic rod. The pneumatic drill is fixedly connected to the top center of the lifting plate of the movable frame. The drill rod stabilizing mechanism includes a fixed frame, a fixed ring, a ring rail, and a reinforcing frame. The fixed frame is fixedly connected to the top surface of the lifting plate, the fixed ring is fixedly connected to the front end surface of the fixed frame, the ring rail is fixedly connected to the front end surface of the fixed ring, and the reinforcing frame is mounted on the ring rail and fixedly connected to the drill rod. This device is compact and flexible, allowing for more flexible use and stable and rapid drilling operations.

The utility model relates to valve technical field and disclose a valve actuator hand wheel mechanism, including valve body, the top rotation of valve body is connected with main shaft, and the bottom end of main shaft extends to the inside of valve body and is fixedly installed with the valve core, the top fixed mounting of valve body is used for driving the rotation of pneumatic motor of main shaft, and the top end of main shaft extends to the top of pneumatic motor and is provided with hand wheel switching mechanism. The valve actuator hand wheel mechanism, when needing manual operation, the hand wheel position is positioned through the auxiliary positioning assembly, the hand wheel cover is removed, makes inner tooth and outer tooth disc clamping, and the main shaft and valve core can be rotated with hand wheel ring, realize the manual regulation operation of valve, and when using pneumatic motor to drive the rotation of main shaft, the hand wheel cover and hand wheel ring are removed downwards, make inner tooth and outer tooth disc separate, the hand wheel ring keeps stationary at this moment, does not rotate with main shaft, ensures the safety in the use of valve.

The utility model relates to the technical field of coal mining, and disclose a kind of pressure maintaining sampling device based on pneumatic motor control, including drill rod, outer frame, storage tank, pneumatic motor, the drill rod is located in the inside of outer frame, and one end of outer frame is fixedly connected with drill rod by bolt, drill rod is coaxially arranged with outer frame, and the other end of drill rod is fixedly installed with drill bit, and the other end of outer frame is provided with the hollow drill of taper, and there is gap between hollow drill and drill bit.The pressure maintaining sampling device based on pneumatic motor control, the storage component of setting can store the gas of sampling, the cooperation of check valve one and check valve two, effectively reduce gas leakage risk, and the pressure of the gas taken is stably maintained, and in the storage process, gas can be filtered by filter plate, remove impurities, improve the purity of gas sample, and the deformation force of spring is used to assist the pressure inside cavity, guarantee the stability of sampling process.

This utility model discloses a pneumatic dental handpiece, relating to the field of medical device technology, comprising a connector, a lower housing, an upper housing, a guide sleeve, a connecting nut, and a pneumatic motor assembly. The connector has an internal air passage structure for connecting an external gas supply and exhaust device. The lower end of the lower housing is fitted onto the connector, and the upper end has a first flange extending radially inward. The lower end of the upper housing is aligned with the upper end of the lower housing. The guide sleeve is housed within the cavities of the lower and upper housings, with its lower end threadedly connected to the connector, a threaded connection portion in the middle, and its upper end engaging with the upper housing. The connecting nut is screwed onto the threaded connection portion and abuts against the first flange to press the lower housing onto the connector. The pneumatic motor assembly is disposed within the cavity of the lower housing, with its input end connected to the air passage structure and its output end rotatably engaged within the cavity of the guide sleeve and externally connected to dental surgical tools. This design simplifies the structure of the pneumatic dental handpiece and improves ease of assembly and disassembly.

A drilling device and method without a derrick and without drill pipe casing is disclosed. It primarily addresses the problems of high construction costs, easy drill bit burial, collapse, and drill pipe breakage during drilling in existing drilling methods. The method is characterized by: longitudinal air injection holes (6) and exhaust / slag discharge holes (7) respectively opened on the casing wall; after several casings are connected, all air injection holes (6) and all exhaust / slag discharge holes (7) are interconnected; a pneumatic motor (3) is connected to the lowest casing, and a drill bit (4) is connected to the pneumatic motor (3); an air compressor (9) is connected to the pneumatic motor (3) through a high-pressure air injection main pipe (11) and air injection holes (6). This drilling method eliminates the need for a derrick and drill pipe, saving costs; it allows for simultaneous drilling and casing installation, preventing drill bit burial, breakage, and collapse, ensuring construction safety.

This invention discloses a high-temperature resistant vapor-phase space anti-sticking coating device for PVC polymerization reactors. It addresses the limitations of existing coating equipment, such as limited range, low efficiency, single function, and inflexible control. The device is based on a Y-type spray valve, equipped with a pneumatic motor, hollow threaded rod, telescopic tube, spray head, airtight chamber, and electromagnetic pressure valve. The pneumatic motor drives the hollow threaded rod, which in turn moves the telescopic tube and spray head up and down, expanding the spray coverage area. A 45° inclined feed inlet allows for the introduction of atomized coating agent or cleaning water, providing both spraying and cleaning functions. The electromagnetic pressure valve regulates the air pressure in the airtight chamber, enabling the spray head to move in a combined lifting and rotating motion. A single power source is required for operation, and the motion mode is flexibly adjustable. This device provides uniform and efficient spraying, adapts to different working conditions, improves the anti-sticking effect and production efficiency of PVC polymerization reactors, and reduces equipment investment costs.

An air blowing apparatus has a primary fan housing, primary air fan and primary output combined with a secondary fan housing, secondary air fan and secondary output generating multiple airflows with distinct fluid dynamic characteristics. The primary air fan and secondary air fan can be powered by any suitable prime mover, including an electric motor, a pneumatic motor, a hydraulic motor, a combustion engine, and others. The secondary housing, fan and output can generate a secondary airflow having a different fluid dynamic characteristic than provided by the primary housing, fan and output. In aspects of the disclosed embodiments, the secondary airflow can have a relatively high air speed, and the primary airflow can have a relatively high air volume.

This utility model relates to the field of reciprocating pneumatic motor technology, and particularly to a cartridge-type stroke valve and its application in a reciprocating pneumatic motor. The valve includes: a valve stem with a receiving cavity at one end, a through-hole radially formed at the end of the valve stem away from the receiving cavity, and a connecting hole within the valve stem connecting the receiving cavity and the through-hole; a valve body with a through-hole along its length, the valve stem placed within the working cavity, the valve body coaxially arranged with the valve stem, and an intake passage, a reversing passage, and an exhaust passage formed on the side of the valve body near the valve stem; a spring installed within the receiving cavity, coaxially arranged with the valve stem; and a valve cover installed at one end of the valve body, coaxially arranged with the valve stem, with an abutment groove formed on the side near the spring, into which one end of the spring is inserted. This utility model effectively solves the pressure balance problem of pneumatic motors, significantly reduces manufacturing costs, and overcomes the prominent defects of traditional through-hole valve stems.

The application discloses an integrated washing tank pipeline with a driving structure and belongs to the technical field of fluid conveying equipment. A gear assembly is arranged in a mounting box, a pneumatic motor is arranged on the mounting box, a piston rod assembly is arranged in an outer pipe, the gear assembly is controlled by the pneumatic motor to drive the piston rod assembly to move, the outer pipe is provided with an inlet and a valve, the piston rod assembly controls the control inlet and the valve of hot air, hot water, steam and nitrogen, and limit valve mechanisms one and two are symmetrically arranged on the mounting box to control the forward rotation and reverse rotation of the pneumatic motor, motor locking mechanisms are arranged on the two sides of a pressing plate, and a cabin scanning motor driving assembly is arranged at the bottom of the piston rod assembly. The application solves the problems that the residual materials in the tank are flammable, explosive, toxic, harmful, volatile and easy to gather, workers are easy to be poisoned and suffocated when entering the tank body with poor ventilation, manual cleaning is high-risk due to human body static electricity or flash explosion, and steam and volatile gas escape to pollute the environment when the tank opening is not sealed, and mainly applies to fluid transportation.

An air blowing apparatus has a primary fan housing, primary air fan and primary output combined with a secondary fan housing, secondary air fan and secondary output generating multiple airflows with distinct fluid dynamic characteristics. The primary air fan and secondary air fan can be powered by any suitable prime mover, including an electric motor, a pneumatic motor, a hydraulic motor, a combustion engine, and others. The secondary housing, fan and output can generate a secondary airflow having a different fluid dynamic characteristic than provided by the primary housing, fan and output. In aspects of the disclosed embodiments, the secondary airflow can have a relatively high air speed, and the primary airflow can have a relatively high air volume.