33results about How to "Reduce temperature load" patented technology

The invention relates to a method for operating a fuel pump in order to guide fuel from the fuel container of an internal combustion engine, wherein the electric energy, which is in the form of pulses, is periodically guided to the fuel pump and the duration of the pulses is controlled according to the fuel required by the internal combustion engine. The frequency of the pulses is controlled in such a manner that, in the event of low pump capacity of the fuel pump, the frequency is controlled to a higher level than in the even of a high pump capacity.

In a device for atomizing liquid melts, in particular oxidic slags or glasses, including a slag tundish and an outlet opening into which a lance is immersed to inject gases or vapor while forming an annular gap, the lance (3) is comprised of two coaxial tubes (4, 5) which are separately displaceable in the axial direction and fixable in their respective axially displaced positions.

A semiconductor element such as a DMOS-transistor is fabricated in a semiconductor substrate. Wells of opposite conductivity are formed by implanting and then thermally diffusing respective well dopants into preferably spaced-apart areas in the substrate. At least one trench and active regions are formed in the substrate. The trench may be a shallow drift zone trench of a DMOS-transistor, and/or a deep isolation trench. The thermal diffusion of the well dopants includes at least one first diffusion step during a first high temperature drive before forming the trench, and at least one second diffusion step during a second high temperature drive after forming the trench. Dividing the thermal diffusion steps before and after the trench formation achieves an advantageous balance between reducing or avoiding lateral overlapping diffusion of neighboring wells and reducing or avoiding thermally induced defects along the trench boundaries.

The invention discloses a cooling tower photovoltaic panel tower synergistic device. The device comprises a hanging truss system, a special-shaped photovoltaic panel system and a servo guide rail system, wherein a circumferential truss of the hanging truss system is connected with a radial truss in a criss-cross manner and is embedded on the outer surface of a cooling tower cylinder, the hanging truss system has the functions of a rigid ring and radial ribs, the overall stability of the cooling tower cylinder can be improved, the wind pressure on the surface of the tower cylinder can be reduced, the special-shaped photovoltaic panel of the special-shaped photovoltaic panel system is hung on the circumferential truss through a photovoltaic panel bracket and covers the outer surface of the cooling tower cylinder, the temperature load of the inner wall and the outer wall of the tower cylinder can be reduced by shielding sunlight and preventing sunlight from directly irradiating the surface of the cooling tower cylinder, the servo guide rail system is laid on the circumferential truss, wherein a servo controller is arranged on the circumferential truss at the top of the cooling tower cylinder and is used for capturing a solar incident azimuth angle and a guide rail motor and a pitching motor are driven to drive the special-shaped photovoltaic panel to carry out posture conversion to face the sun, the special-shaped photovoltaic panel can directly face direct solar radiation constantly, so that the outer tower wall of the cooling tower is shaded, and the photoelectric efficiencyis improved.

A method of fabricating a semiconductor component includes providing a prefabricated frame that includes metal traces and lead-through contacts. A semiconductor chip is mounted into the prefabricated frame such that the semiconductor chip is embedded within a rim of the prefabricated frame. Contact regions on a surface of the semiconductor chip are electrically connected with the metal traces of the prefabricated frame such that the contact regions are electrically coupled to the lead-through contacts via the metal traces.

The invention relates to a device for determining the topography of the charge surface in a shaft furnace (10), comprising a radar device (20) which scans said charge surface (18) and has an antenna device (22) arranged in the region of a furnace cover (13), said antenna device being arranged on a rotational axis (24) which is at an incline, at an angle of inclination alpha, relative to a vertical axis (15) of said shaft furnace, and being rotatable about said rotational axis by means of a drive device such that a radar fan (28) formed from the emitted radar radiation of the antenna device is incident upon the charge surface along a profile line p, and sweeps across said charge surface as the antenna device rotates.

The invention relates to an exhaust gas passage of an internal combustion engine, in particular a reciprocating piston internal combustion engine with an exhaust gas turbocharger, as well as an internal combustion engine with such an exhaust gas passage. The invention is based on the object of providing an exhaust gas passage (18) of an internal combustion engine (10) as well as an internal combustion engine (10) which enables the exhaust gas of the internal combustion engine (10) to be efficiently cooled and thereby prevents the use of inexpensive materials in the area of flow components of downstream of such an internal combustion engine (10). In the exhaust gas passage (18) of the internal combustion engine (10) according to the invention with at least one coolant pipeline (38) for reducing the temperature of the exhaust gas of the internal combustion engine (10) flowing through the exhaust gas passage (18), at least one cooling structure (34) changing the cross section of the exhaust gas passage (18) is formed in partial region of the exhaust gas passage (18) and is operatively connected to the at least one coolant pipeline (38).

A material composite that is vacuum-tight and resistant to thermal shocks is disclosed along with a method for the production thereof and to its use. A permanent connection between an aluminum oxide sapphire and an aluminum oxide ceramic is attained by a first connecting later comprised of a manganese-silicate glass, in which at least one of the metals molybdenum, tungsten, palladium or platinum is incorporated, and by a second connecting layer comprised of a manganese-silicate glass. To this end, the individual materials are fused by sintering. The material composite is used, for example, for inserting a window comprised of aluminum oxide sapphire into a housing for a light-ignitable thyristor.

The invention relates to a strengthening system and process for preparing polyethylene based on a solution method. The strengthening system comprises an ethylene storage tank, a reactor, a micro-interface generator, a killer, a solvent removal tank, a rectifying tower, a flash tank, a separation tank, a first drying tower and a second drying tower. According to the invention, ethylene is crushed to form micron-sized bubbles, and the micron-sized bubbles are mixed with a solvent to form a gas-liquid emulsion, so that the phase interface area of a gas phase and a liquid phase is increased, the thickness of a liquid film is reduced, the mass transfer resistance is reduced, and the mass transfer effect is enhanced within a lower preset operation condition range; and meanwhile, all the micron-sized bubbles can be fully mixed with the solvent to form the gas-liquid emulsion, and ethylene and an initiator in the system can be in full contact with the solvent by fully mixing gas and liquid phases, so that the polymerization efficiency of the system is further improved.

The invention relates to an intelligent strengthening system and process for preparing polyethylene based on a solution method. The intelligent strengthening system comprises an ethylene storage tank,a reactor, a micro-interface generator, a killer, a solvent removal tank, a rectifying tower, a flash tank, a separation tank, a first drying tower, a second drying tower and an intelligent control unit. According to the invention, ethylene is crushed to form micron-sized bubbles, and the micron-sized bubbles are mixed with a solvent to form a gas-liquid emulsion, so that the phase interface areaof a gas phase and a liquid phase is increased, the thickness of a liquid film is reduced, the mass transfer resistance is reduced, and the mass transfer effect is enhanced within a lower preset operation condition range; and meanwhile, all the micron-sized bubbles can be fully mixed with the solvent to form the gas-liquid emulsion, and ethylene and an initiator in the system can be in full contact with the solvent by fully mixing gas and liquid phases, so that the polymerization efficiency of the system is further improved.

The present invention relates to an internal combustion engine used for combustion gas, and particularly to an Otto gas engine which is provided with at least one combustion chamber, wherein, the combustion chamber is communicated with a combustion gas nozzle connected with a combustion gas line for introducing the combustion gas into the combustion chamber. Furthermore the internal combustion engine is provided with an ignition device which extends into the combustion chamber for igniting the combustion gas. According to the invention, the combustion gas nozzle (7) is communicated with the combustion chamber (4) with a mode that a combustion gas jet (8) brought from the combustion gas nozzle (7) into the combustion chamber (4) is directed at the ignition device (6).

The present invention relates to a blade-disc arrangement for a turbomachine having a disc and a plurality of grooves that are arranged in a casing surface of the disc for taking up blades, as well as a plurality of blades with blade roots that are accommodated in the grooves, wherein at least one heat shield element is arranged between at least one blade root and a groove surface of at least one groove, so that there is no direct contact between blade root and disc in the groove region, wherein the heat shield element is formed of a ceramic material, at least in part.

The invention relates to a heating module (1) for an exhaust-gas purification system connected to the outlet of an internal combustion engine. The heating module comprises a catalytic burner, with an HC injector (14) and with an oxidation catalytic converter (12) positioned downstream of the HC injector (14) in the flow direction of the exhaust gas, for supplying thermal energy to an exhaust-gas purification unit of the exhaust-gas purification system. It is provided here that the heating module (1) has a main section (2), a secondary section (3) which comprises the catalytic burner (12, 14), and a device (4, 5) for controlling the exhaust-gas mass flow flowing through the secondary section (3). In a first embodiment, the main section (2) has, in the inlet region of the heating module (1), an overflow pipe portion (6) which has overflow openings (7), between which overflow diverting chambers (8) is situated, parallel to the main section (2) of the heating module (1), the secondary section portion (11) with the oxidation catalytic converter (12). In another embodiment, it is provided that the secondary section (3) has, at the inlet side and outlet side, in each case one diverting chamber (8) which extends in the radial direction from the main section (2), between which diverting chambers (8) is situated, parallel to the main section (2) of the heating module (1), the secondary section portion (11) with the oxidation catalytic converter (12).