45results about How to "Increased air turbulence" patented technology

A heat exchanger of a ventilating system, including a plurality of heat exchanging plates which are laminated at a predetermined interval, a first heat exchange member which is laminated among the heat exchanging plates and is formed in a mesh type to increase turbulence of the outdoor air which flows while being attached on a first air path through which outdoor air passes and a second heat exchange member which is laminated among the heat exchanging plates crossed with the first heat exchange member and is formed in a mesh type to increase turbulence of indoor air which flows while being attached on a second air path through which the outdoor air passes can improve heat transfer performance by increasing turbulence of air by positioning a mesh type heat exchange in a air path through which outdoor and indoor air passes.

A turbine stage one bucket has an airfoil having a plurality of cooling holes passing through the airfoil from 0% span to 100% span whereby cooling air exits the airfoil tip into the hot gas path. X and Y coordinate values are given in Table I, locating the holes relative to the airfoil profile at airfoil profile sections of 5%, 50% and 90% span, Table I also giving the hole diameters. In this manner, cooling hole optimization for this turbine bucket airfoil is achieved. The cooling holes are also located in relation to the profile of the bucket airfoil given by the X, Y and Z coordinate values of Table II, the two coordinate systems having the same origin.

A turbine stage one bucket has an airfoil having a plurality of cooling holes passing through the airfoil from 0% span to 100% span whereby cooling air exits the airfoil tip into the hot gas path. X and Y coordinate values are given in Table I, locating the holes relative to the airfoil profile at airfoil profile sections of 5%, 50% and 90% span, Table I also giving the hole diameters. In this manner, cooling hole optimization for this turbine bucket airfoil is achieved. The cooling holes are also located in relation to the profile of the bucket airfoil given by the X, Y and Z coordinate values of Table II, the two coordinate systems having the same origin.

A golf ball (20) having a plurality of standard dimples (33) and a plurality of covered dimples (31) is disclosed herein. Each of the plurality of covered dimples (31) has at least one overhang land area portion (50) that covers a portion of a concavity (55) of the covered dimple (31). A covered region (70) under the overhang land area portion (50) generates eddy currents during the flight of the golf ball (20) which creates greater turbulence at the surface (22) of the golf ball (20) allowing for greater distance.

The invention discloses an aviation-used fuel cell system radiator which comprises N layers of laminatedly superimposed corrugated pieces, wherein the N is a natural number larger than or equal to 2; ridges and grooves which are alternately arranged at intervals are arranged on the surfaces of the two side surfaces of the corrugated pieces, adjacent corrugated piece layers are welded through the ridges to form (N-1) layers of channel structures, and the condition that the adjacent corrugated piece layers are welded through the ridges means that the ridges on the upper surfaces of the lower-layer corrugated pieces and the ridges on the lower surfaces of the upper-layer corrugated pieces are welded in a one-to-one corresponding mode; the radiator further comprises sealing end sockets arranged at the two ends of channels, wherein gaps are reserved between the sealing end sockets and the opening ends of the channels; a heat radiation work medium inlet is formed in one sealing end socket, and a heat radiation work medium outlet is formed in the other sealing end socket. Compared with the prior art, the radiator disclosed by the invention has a simple structure and avoids additional fans; meanwhile, cooling fins of the radiator are in shapes of thin-plate-shaped corrugated pieces; air turbulence of a heat radiating surface is improved by utilizing aviation flying airflow, a heat radiating effect is good, and flying resistance of an airplane is prevented from being increased.

The invention discloses a combustor of ellipsoidal motorcycle engine, which is constituted by the space between the cylinder cover and the piston. There are intake and outtake channels set at two ends of cylinder cover. The intake channel is high-level tangent air channel and the outtake channel is screw curved air channel. The top face of piston is cone-like convex face. On the cone-like convex face two concave surfaces are set, which are intersected with the cone-like convex face. The space formed by the first concave surface is the collision prevention pit of intake door and the space formed by the second concave surface is the collision prevention pit of outtake door. The space with petal-shape at the side face is formed by the bottom of cylinder cover, spherical concave pit and ellipsoidal pit, which are communicated from the top to the bottom. The space with petal-shape at the side face of cylinder cover is corresponding to the cone-like convex face at the top of piston. After the piston is assembled with the cylinder cover, the ellipsoidal combustor with petal-shape squish flow face is formed by the cone-like convex face on the piston and the space at the side face of cylinder cover. The combustor can strengthen the air flow disturbance of mixed air very well. It can improve burning and decrease HC discharge.

The invention relates to a civil heating stove feeding automatically and taking haulm briquettes as fuel, which comprises two parts, namely, a stove body and an automatic feeding device. The stove body essentially comprises a combustion chamber, a wind box, a rocking grate, a flue channel and a water jacket. The automatic feeding device essentially comprises a motor, a screw rod, a stock driving groove, a limit switch and a hopper and can realize 8 hours to 12 hours of timed and rationed automatic feeding. The civil heating stove is applicable to the clean combustion process of biomass fuels, has the advantages of high combustion efficiency, high thermal efficiency, low emission of contaminants, low generation of tar and labor conservation and the like, does not cause problems like indoor contamination resulted from condensation of the tar, and has simple structure, low cost and broad application prospect.

The invention provides a cooling device used for a solid thermal carrier waste heat utilization system. The cooling device is capable of solving a problem that cooling of high temperature solid thermal carriers via conventional cooling devices is insufficient. The cooling device comprises a rotary kiln; the two ends of the rotary kiln are sealed with end covers respectively, and the rotary kiln is capable of rotating relative to the two end covers; one of the end covers is provided with a thermal carrier inlet and a high temperature exhaust gas outlet, and the other end cover is provided with a cooling wind inlet; the cooling wind inlet is connected with an air blower; one end of the rotary kiln close to the cooling wind inlet is provided with thermal carrier outlets; the periphery of the rotary kiln is provided with a plurality of air inlets along the circumferential direction in lines; each line of the air inlets on the periphery of the rotary kiln is provided with an annular air inlet cabin; the annular air inlet cabins are capable of rotating relative to the rotary kiln; cooling wind is delivered into the annular air inlet cabins; and an air outlet channel of each annular air inlet cabin is arranged to towards the corresponding line of air inlets on the rotary kiln.

An improved autoclave for curing retread tires includes a chamber with circulating air flow having turbulence generating devices located in a middle length-wise portion of the chamber. The turbulence generating devices include apertures to guide air from a supply duct into the chamber, and / or wedge-shaped elements or fins mounted on the interior wall of the chamber to disrupt the air flow and cause turbulence.

The present invention relates to improvements in the art of operating large heat chambers so as to reduce both the time and the cost required for heating materials. More specifically, the modified heat chamber of the present invention provides a programmable control mechanism capable of significantly reducing areas with temperature variations or hot and cold spots. A programmable heat chamber leads to significant reductions in the required processing time and in the cost of the required energy.

Surface treatment agent with high photocatalytic and sanitary effects based on TiO2 nanoparticles comprising 10 to 500 g of TiO2 nanoparticles per 1 liter of water, and binding ingredient A, which is an inorganic binder selected from the group comprising ZnO, MgO, CaO, Ca(OH)2, Mg(OH)2, CaCO3, MgCO3, Na2CO3, K2CO3 in the amount of 0.1 to 10% by weight related to the N weight of TiO2. Agent for treatment of surfaces for application on surfaces, which comprise a minimum of 50% of substances selected from the group formed by CaCO3, MgCO3 ZnO, MgO, CaO, Ca(OH)2, Mg(OH)2 or their mixtures, where the agent contains 10 to 500 g of TiO2 nanoparticles per 1 liter of water, and optionally contains a minimum of 0.1 wt % H2CO3 related to the weight of TiO2.

The invention discloses a method for realizing low temperature tempering by a medium-high temperature tempering furnace. The method comprises the following steps that each burner nozzle of the medium-high temperature tempering furnace stops burning and hot blast is injected into the medium-high temperature tempering furnace through a hot blast injection pipe, wherein the hot blast injection pipe is led out from a joint between an air automatic valve and an air manual valve of an air pipeline connected with each burner nozzle. According to the method disclosed by the invention, the temperatureuniformity of the low temperature tempering can be improved, the heating efficiency is improved, the high temperature tempering and the low temperature tempering can be totally carried out on one stove, and the investment cost is reduced.