309results about How to "Avoid heat transfer" patented technology

An exhaust gas purifying device includes a tubular casing arranged in exhaust passages of an internal combustion engine. A filter is held in the casing. The filter collects and burns particulates contained in the exhaust gas discharged by the internal combustion engine. The casing has a double structure including an inner case supporting an outer peripheral surface of the filter and an outer case arranged around the inner case. The inner and outer cases are spaced from each other with a clearance defined between the cases.

A radio-wave transparent cover is adapted to be arranged on a radio wave path of a radar device. The radio-wave transparent cover includes a transparent member, a decorative layer, a base, and a suppression member. The transparent member is formed of a first resin material. The decorative layer is formed on the rear surface of the transparent member. The base is formed of a second resin material and arranged behind the decorative layer. The suppression member is formed of a third resin material and molded in advance. The suppression member is arranged on the decorative layer to cover the rear surface of the decorative layer. The suppression member suppresses heat transfer to the transparent member when the base is insert-molded.

The invention relates to a food cooking control method and device. The method includes the following steps in which: at least one temperature detection device is inserted into a food; a final equilibrium temperature is defined; the detection device is positioned inside the food in a pre-determined detection zone so that a temperature (TC) can be obtained at all times during cooking; the TC temperature data obtained are processed using the detection device; the temperature of the surface through which the food receives heat (TP) is determined and processed and the variation in temperature TC is evaluated at least to the first derivative. The device includes a detection device intended to be inserted into the food, a device for determining the thickness of the food and a device for inserting the detection device into the food to a pre-determined depth.

The invention provides a flat plate heat pipe. The flat plate heat pipe comprises an evaporation cover plate, a condensation cover plate, a liquid filling pipe and liquid absorption cores. The evaporation cover plate is of a concave table structure. A connection belt is arranged around the periphery of the top end of the concave table structure of the evaporation cover plate. The liquid absorption cores of a porous capillary structure are formed in the periphery of the inner side of the top end of the concave table structure of the evaporation cover plate, and a hydrophilic thin layer is compounded to the bottom face of the inner side of the top end of the concave table structure of the evaporation cover plate. A plurality of convex plates are arranged on the side, in contact with the evaporation cover plate, of the condensation cover plate. A hydrophobic thin layer is compounded to the positions, except for the positions with the convex tables, of the side, in contact with the evaporation cover plate, of the condensation cover plate. A through hole is formed in the outer side of the evaporation cover plate, and the liquid filling pipe is arranged in the through hole. The evaporation cover plate and the condensation cover plate are connected in a sealed mode to form a closed cavity. Through modification of the hydrophilic property of the evaporation cover plate of the flat plat heat pipe and the hydrophobic property of the condensation cover plate, and through the supporting convex plates machined on the condensation cover plate, the heat exchange capacity and stability of the flat plate heat pipe are improved.

A radio frequency space cooling system (11) for a magnetic resonance imager system (10) includes a thermal energy transfer device (78). The energy transfer device (78) reduces the temperature of a cooling fluid (86) within the cooling system (11). A cooling element (82) is coupled to the energy transfer device (78) and extends along a patient bore (15) between a radio frequency shield (22) and a radio frequency coil (20) of the magnetic resonance imager system (10). The cooling element (82) has a channel (90) for passage of the cooling fluid (86).

A light-emitting device comprises a base where a wiring conductor is formed over the top to bottom surfaces or over the top to side surfaces, a light-emitting element mounted on the top surface of the base and electrically connected to the wiring conductor, a first light-transmitting section covering the light-emitting element, a second light-transmitting section disposed over the first light-transmitting section, covering the first light-transmitting element, and made of a light-transmitting material containing a phosphor for converting the wavelength of the light emitted from the light-emitting element and a third light-transmitting section interposed between the first and second light-transmitting sections. The following relations are satisfied: n3 H01L 33/00 9 29 2 2005/7/27 101124683 2008/2/13 000000000 Kyocera Corp. Japan Tabuchi Tomoya Miyake Akira Sakumoto Daisuke lixiang lan 11021 The Patent Agency of the Chinese Academy of Sciences Inside the Chinese Academy of Sciences, No.52 Sanlihe Road, Fuwai, Beijing 100864 Japan 2004/12/24 375037/2004 Japan 2005/1/24 016054/2005 2007/8/17 PCT/JP2005/013749 2005/7/27 WO2006/067885 2006/6/29 Japanese

Cooling apparatus (1), in particular a chest freezer (2), having a cooling circuit (3), a compressor (4), at least one evaporator (5) and a condenser (44), and a closable cooling chamber (6) with a plurality of cooling chamber side walls (7), a cooling chamber floor (8), at least one cooling element (9) and an insulating container (10). In the cooling apparatus (1), the evaporator (5) and the cooling element (9) are arranged within the cooling chamber (6) in such a way that the rear side of the cooling element (11) bears at least partially against the evaporator (5), and the front side of the cooling element (12) faces the insulating container (10), and the insulating container (10) is closed at least towards the at least one cooling element (9) and forms a chilled goods chamber (13). That rear side of the cooling element (11) which bears against the evaporator (5) has at least one cut-out (14), into which at least one removable refrigeration accumulator (15) can be inserted. At least one heating element (17) and at least one accumulator element (18) are preferably arranged in the region of the downwardly pointing end (16) of the insulating container (10).

An atomic oscillator includes a base, a unit portion including a gas cell and the like, and a support member that supports the unit portion against the base. The support member includes a plurality of leg portions and a connecting portion that connects the plurality of leg portions to each other. A connection portion between each leg portion and the base is separated from the unit portion in plan view from a direction in which the base and the unit portion overlap each other.

A device for transferring heat between a panel heated by solar radiation and a wall surface, including an insulating plate mounted parallel between the panel and the wall surface, to define a closed external space between the panel and the insulating plate, and a closed internal space between the insulating plate and the wall. An air circulator is interposed between the external space and the internal space and can be put selectively in an open state allowing circulation of air between the external space and the internal space, and thus allowing thermal transfer between the panel and the wall, and a closed state preventing circulation of air between the external space and the internal space, and thus preventing thermal transfer between the panel and the wall.

The invention discloses a preparation method for polysiloxane with extra high molecular weight, comprising the steps of (1) adding dimethyl siloxane or alpha, omega-dihydroxy polydimethylsiloxane intoa reactor, stirring, controlling the rotating speed being 30 to 60 revolutions per minute, heating up to 90-160 DEG C., adding catalyzer which occupies 0.001% to 0.1% by weight of raw materials and reacting for 2.0 to 6.0 hours at constant temperature, (2) at constant temperature, vacuum-pumping for 1.0 to 4.0 hours, and controlling the vacuum degree being -0.080 to -0.10 MPa, and (3) adding neutralizing agent which occupies 0 to 0.1% by weight of raw materials, heating up to 170-180 DEG C., introducing nitrogen, vacuum-pumping for 2.0 to 6.0 hours, stopping heating, stirring, discharging after cooling to room temperature to obtain the blocky or granular hydroxyl silicone oil products with extra high molecular weight. The invention can prepare the polysiloxane with molecular weight more than 1000000.

The invention discloses a FDM3D printer with heating and heat preservation performance, which comprises a casing, the casing includes a lower casing and an upper casing fixedly connected above the lower casing; an upper front door is installed directly in front of the upper casing, and the lower casing The lower front door is installed directly in front of the front; the upper shell and the lower shell are set as a rectangular parallelepiped structure without a front face; The double-layer structure, the double-layer structure includes the outer sheet metal shell and the inner sheet metal plate; the double-layer structure on the upper left side and the upper right side is equipped with an air duct; the upper end of the air duct is equipped with a heater, and the lower end is It is equipped with a turbo fan; it reduces the heat exchange between the printer's printing chamber and the outside air, so that the hot air in the printer is not easy to flow out from the sheet metal gap; and heats the air in the upper casing, and makes the printing chamber reach the preset goal After the temperature value, it is in a state of constant temperature and uniformity.

The invention relates to a thermodynamic cycle (1) with at least: - one first heat exchanger (W1) for creating a first heated or partially evaporated working medium flow (15) by heating or partially evaporating a liquid working medium flow (14) by heat transmission from an expanded working medium flow (12); - a second heat exchanger (W2) for creating a second at least partially evaporated working medium flow (18); - a separator (4) for separating a liquid phase (19) from a vaporous phase (10) of the second working medium flow (18); - an expansion device (2) for creating an expanded vaporous phase (10). According to the invention, pressure pulsations are prevented during the start-up of the cycle in that the vaporous phase (10) separated by the separator (4) is conducted past the expansion device (2) and the first heat exchanger (W1). The liquid phase (19) separated by the separator (4) is cooled in the first heat exchanger (W1) by heat transfer to the liquid working medium flow (14). After the first heat exchanger (W1), the cooled, separated, liquid phase and the separated vaporous phase (10) are brought together.

A dryer includes a dryer body, a driving device, a groove, and an upper cover. The groove is located around the opening of the dryer body. The upper cover has a cone shape and is located at the opening of the dryer body. The edge of the bottom of the upper cover is located at the groove. The angle of the cone end of the upper cover makes the water drops condensed on the inner wall of the upper cover slide downward along the inner wall of the upper cover so that they are collected in the groove.

An overheat steam cooker includes a cooker cabinet having a heating housing forming therein a food accommodating space; an overheated steam generator generating overheated steam to be supplied into the heating housing; a water supplying device including a water injecting part provided to the cooker cabinet, through which water is injected, and a water supplying pipe provided between the water injecting part and the overheated steam generator, supplying the water injected from the water injecting part to the overheated steam generator; an exhaust device including an exhaust pipe, discharging the steam supplied to the heating housing; and an exhaust circulating device including an exhaust circulating pipe to supply the steam discharged to the exhaust pipe to the overheated steam generator, and a flow selection part provided between the exhaust pipe and the exhaust circulating pipe, selectively discharging the steam to the outside or guiding it to the exhaust circulating pipe.

The invention discloses a vacuum insulation plate and a manufacturing method thereof. The vacuum insulation panel comprises a closed hollow cavity body which is formed by casting a material slurry, wherein the interior of the cavity body is hollow; an airtight layer is arranged on the inner wall or/and the outer wall of the cavity body. After the cavity body is vacuumized, convective heat transfer caused by air movement can be avoided, so that the thermal insulation is excellent; the vacuum insulation plate is formed by casting concrete or the material slurry, so that the vacuum insulation plate is firm and reliable; a basic material adopts the concrete or the material slurry with high strength, and the strength is high enough to bear long-term effects of a vacuum pressure, a wind load, self weight and a temperature deformation stress; more than 90% of the plate structure is made of cement and other inorganic materials, so that the long service life of the vacuum insulation plate can be ensured; the vacuum insulation plate mainly uses vacuum, the cement, pottery sand and other low-cost materials, so that the cost of the vacuum insulation plate disclosed by the invention is only 1/3 that of the conventional vacuum insulation plate; 90% of the plate structure is made of the cement and the pottery sand, so that the fire-proof performance is class A; the vacuum insulation plate is applicable to external wall insulation and roof insulation for buildings with a shear wall structure, a framework structure and a steel structure.

The present invention relates to a display unit installing structure for a refrigerator. The present invention comprises an accommodating unit which is formed by depressing a portion on a front surface of a door and in which a display unit for displaying a variety of information thereon and inputting operating signals are retractably installed; a link mechanism for guiding accommodation and withdrawal of the display unit and tiltably supporting the display unit withdrawn from the accommodating unit at a predetermined angle; and a locking means for preventing the display unit from being inadvertently escaping from the accommodating unit. According to the present invention, there is an advantage in that the display unit can be retractably installed on the front surface of the refrigerator door.

A liquid crystal display (100) is provided with a laser light source (5), an LED light source (4), and a radiator (2). The laser light source (5) emits laser light (51). The LED light source (4) emits LED light (41). The radiator (2) holds the laser light source (5), and transmits heat produced by the laser light source (5) and releases said heat in the air. The laser light source (5) is positioned lower than the LED light source (4). The liquid crystal display (100) prevents heat from the LED light source (4), which is not easily affected by heat, from being transferred to the laser light source (5), which is easily affected by heat.

A stagnation space defined by barriers is provided in a first muffler chamber communicating with a first cylinder chamber. The stagnation space overlaps with a refrigerant-gas inlet side of the first cylinder chamber, the inlet side being bordered by a center plane as viewed in a direction of a center axis of the first cylinder chamber. In the first muffler chamber, the high-temperature, high-pressure refrigerant gas is unlikely to enter into the stagnation space, so that heat is less absorbed to the inlet side of the first cylinder chamber.

The invention relates to a vacuum insulation pipe filled with inert gas, wherein, an ultrafine particle (fiber) insulation material is filled between an inner pipe and an outer pipe; the ultrafine particle (fiber) insulation material is filled with low-thermal conductivity inert gas maintained in a vacuum state such as argon, krypton, xenon and the like; and the vacuum absolute pressure of the inert gas in the ultrafine particle (fiber) insulation material is 10-15000Pa, and better insulation effect can be obtained under lower pressure. In the invention, the adopted low-thermal conductivity inert gas has better thermal insulation property than that of air, and the ultrafine particle (fiber) insulation material prevents collision of gas molecules so as to hinder heat conduction; the ultrafine particle (fiber) insulation material also prevents heat transfer caused by convection and irradiation; and the radiating loss of the vacuum insulation pipe is about 2.5%-25% of that of the conventional insulation pipe with the same thickness and the same material and is only 50% of that of the common vacuum insulation pipe (not filled with inert gas) under the same vacuum degree.

The invention discloses a latent heat absorbing device for a gas boiler. Said gas boiler comprises a latent heat exchanger installed in the chamber such that the latent heat exchanger is separated from the sensible heat exchanger and also separated from the exterior of the gas boiler. The invention prevents heat transfer between the heat exchangers and also prevents condensate from dripping onto the elements of the gas boiler. In addition, at the first channel communicating with both the combustion chamber and the chamber above, the exhaust gas can also maintain a smooth flow in an accelerated state.

A heating cooking appliance is provided. The heating cooking appliance includes a case, a plate covering a top of the case, a burner system generating heat by combusting mixture gas in the case, a control unit controlling operation of the burner system, and a temperature increase preventing unit preventing a temperature of the control unit from increasing by the heat generated from the burner system. The temperature increase preventing unit is installed on the case.