41results about How to "Enhanced entrainment" patented technology

An exhaust system for expelling air from a building includes an outlet nozzle that improves entrainment of ambient air with the building exhaust air. The improved air entrainment results in increased exhaust air dilution and plume height to better disperse the exhaust air away from the building. The nozzle has an H-shaped outlet configuration with two lateral outlet sections joined by a central transverse outlet section. The nozzle has a pair of outer lateral walls, a pair of outer transverse walls, and a pair of sloped inner lateral walls that angle outwards from near an inlet end of the nozzle towards corresponding outer lateral walls. The nozzle can be part of the exhaust system at the outlet side of the exhaust fan within a windband that aids in entraining ambient air with the exhaust air exiting the nozzle.

An oxy-fuel burner arrangement having a first conduit having a nozzle aperture with an aspect ratio, D1 / D2, of greater than or equal to about 2.0. The first conduit is arranged and disposed to provide a first fluid stream, where the first fluid stream is a combustible fuel. The burner arrangement further includes at least one second conduit arranged and disposed to provide a second gas stream circumferentially around the first fluid stream, where the second gas stream includes oxygen. A precombustor is arranged and disposed to receive the first fluid stream and second gas stream where an oxy-fuel flame is produced. The geometry of the nozzle aperture and the cross-sectional geometry of the first conduit are dissimilar.

A liquid applicator comprises a guide roll for guiding a sheet, and a slit die, having a slit with an opening extending in an axial direction of the guide roll, for applying a liquid to a surface of the sheet guided by the guide roll. On the rear side of the opening in a rotating direction of the guide roll, the slit die further includes a front lip having a concave surface corresponding to the guide roll. The front lip opposes the guide roll by such a length FA in the rotating direction RD of the guide roll as to have a central angle θ of 0.95° to 3.0° about an axis O of the guide roll.

An inclined conveyor for a combine harvester has two drive elements which define a conveying direction and revolve in a conveying duct. Conveying duct is divided into an overshot return duct and an undershot conveying duct by a separating element situated between the upper run and the lower run of the drive element. Drive element is interconnected by carriers situated transversely with respect to conveying direction that convey harvested crop in undershot conveying duct. The difference in speed between the carrier bars and harvested crop stream is eliminated, and at least reduced, by additional acceleration of harvested crop stream. Carrier bars serve as carriers, and as acceleration elements for the harvested crop. That is because the cross section of each of the carrier bars viewed in conveying direction, occupies at least 30% of the smallest internal cross section of undershot conveying duct.

The invention relates to a local forced circulation desalting method for a multi-effect evaporating system, belonging to the field of chemical separation engineering. The local forced circulation desalting method comprises the following steps: each effect evaporator maintains a boiling point temperature of a material liquid and evaporates continuously under an operating pressure, and a dissolved salt reaches a saturation state and is separated out; solid substances such as separated salt enter a local forced circulation pipeline under the effects of sedimentation and material liquid circulation of heat exchange and gas-liquid separation for the evaporating system, and part of salt-containing material liquid is extracted from the local forced circulation pipeline under the effect of a circulation pump; solid and liquid phases with different densities are separated in a cyclone hydraulic separator and are discharged to a salt slurry collecting tank under the effect of centrifugal force;and the liquid phase extracted from the cyclone hydraulic separator returns to the entrance of the local forced circulation pipeline again so as to complete the local external circulation of primary material liquid. The method can transfer the solid salt separated from the material liquid out of the multi-effect evaporating system in time, and can be used for the heterogeneous system separation procedure of the multi-effect evaporating system with separated solids.

A plug-in coupling for a pipe, especially for water conduits, includes a coupling sleeve receiving the pipe end, includes a sealing ring which is inserted into the coupling sleeve, and includes a locking ring which is mounted upstream of the sealing ring in the plug-in direction of the pipe end and forms retaining claws which protrude with respect to the pipe end and are inclined in the plug-in direction. The plug-in coupling also includes an annular body which is similarly mounted upstream of the sealing ring and is supported axially in the plug-in direction in relation to the coupling sleeve. The annular body includes a protective ring for surrounding the face end of the pipe end from the outside, which protective ring is connected via a predetermined breaking connection.

An Inhaler for delivering an aerosolised dose of a powdered drug for inhalation by a user is disclosed. The inhaler comprises a drug entreinment device to a receive a package having a piercable lid containing a dose to be delivered, the device including a drug outlet tube terminating with a primary piercing element to pierce an opening in said lid when a package is located in the inhaler, a secondary piercing member to pierce a plurality of peripheral openings in said lid and, an airflow path to enable the supply of a charge of gas into the package via said peripheral openings to scour the interior of a pierced package such that all or substantially all of the dose is entrained in the gas and flows out of the package via the drug outlet tube. A medicament pack is also disclosed.

The invention relates to an air-assisted wide plant protection unmanned helicopter and an operation method implemented by the same. The air-assisted wide plant protection unmanned helicopter comprises an air-assisted air duct device, a support frame, a storage battery, an electric diaphragm pump, a chemical tank and a foldable spray rod. The air-assisted air duct device, the support frame, the storage battery, the electric diaphragm pump, the chemical tank and the foldable spray rod are mounted on an unmanned helicopter, spray nozzles are distributed on the foldable spray rod, the foldable spray rod is divided into a middle main spray rod, first spray rods and second spray rods, and the first spray rods and the second spray rods are arranged on the two sides of the foldable spray rod. Downwash airflow formed by the unmanned helicopter is accelerated by the aid of conical pipeline structures, and high-speed airflow flows through vertical flat columnar air pipes and then flows into horizontal flat tapered air pipes; an air curtain is formed on the spray rods in the width direction of the spray rods by the high-speed airflow, the air speed of the air curtain is downwardly uniformly distributed, accelerating, carrying and secondary atomizing effects can be realized for fog-drops by the air curtain, and the fog-drops are atomized by the spray nozzles. The air-assisted wide plant protection unmanned helicopter and the operation method have the advantages that the working widths of the spray rods are increased, so that the chemical application rate can be increased under the condition that the chemical liquid carrying amount of the unmanned helicopter is unchanged, the operation time can be shortened, the chemical application efficiency can be improved, and power consumption of the unmanned helicopter can be reduced.