89results about How to "Heating evenly and efficiently" patented technology

An anti-icing apparatus includes an anti-icing piccolo tube for an aircraft component with a plurality of self rotating elements. Each self rotating element of the plurality of self rotating elements includes a first inlet to receive a working fluid, a second inlet to receive the working fluid, a peripheral layer that connects the first inlet and the second inlet, and a plurality of outlets placed on the peripheral layer that expulses the working fluid through jets. The jets rotate each self rotating element and dynamically impinges the working fluid on an internal surface of the aircraft component.

The invention discloses an ellipsoid air pressure forming method. The plasticity of an aluminum alloy and a welded joint is improved through an electric current self-resistance heating shell, and compressed gas is used for pressurizing the sealed multi-face shell to form an ellipsoid under the heating condition. In specific, two polar plates and ellipsoid side lobe shell plates are assembled and welded to form the closed multi-face shell; electrodes are arranged on the closed multi-faceted shell, energizing and heating to a preset temperature, and introducing a compressed gas into the shell; the closed multi-face shell, electrification is carried out for heating to the preset temperature, and then the compressed gas is led into the shell; and the closed multi-face shell deforms under the action of internal gas pressure, leading of the gas is stopped until the shell with the desired curvature is obtained, the gas is discharged, the electrodes are removed, and the formed ellipsoid is obtained. According to the ellipsoid air pressure forming method, an electric current self-resistance heating manner is adopted, a large-sized heating furnace is prevented from being used, and the manufacturing cost and the technical risk of the large-diameter ellipsoid are greatly reduced; and an aluminum alloy base material and the welded joint are subjected to air pressure bulging under the heating state, the forming property is remarkably improved, and the problem of cracking of a welded zone during normal temperature forming of the large-diameter aluminum alloy ellipsoid is solved.

Disclosed is a fluid heating apparatus including a halogen lamp 23, and a tubular structure 26 surrounding the heating lamp and having a fluid inlet 24 and a fluid outlet 25. The tubular structure 26 comprises plural straight pipes 26a arrayed circumferentially around the halogen lamp 26, with adjacent straight pipes 26a being in contact with each other, or being slightly spaced from each other. At least the surfaces, facing the halogen lamp 26, of the straight pipes 26a are coated with a black paint 27, or a radiant-light-absorbing paint.

An apparatus and method is provided for preparing frozen ground for construction-type work includes using arrays of heat sources placed over the surface to be heated. The apparatus can warm the surface in preparation for the construction activity with energy penetrating into the ground affording efficient thawing of materials below 20 centimeters of depth. Heat sources used in the array can include emitted infrared radiation.