48results about How to "Increase the export area" patented technology

The invention relates to the technical field of electrical accessories, in particular to a distribution box capable of automatically dissipating heat. The distribution box comprises a box body and a box cover on the box body, a fan is arranged in the box body, and a plurality of heat dissipation holes protruding from the surface of the box cover are formed in the position, close to a heat source,of the box cover; each heat dissipation hole is provided with a fixing plate and a moving plate capable of automatically returning, an electromagnet is fixed to the side, toward the inner wall of thecorresponding heat dissipation hole, of each moving plate, an air bag is fixed to the inner wall of each heat dissipation hole, and an iron block attracting the corresponding electromagnet during heating expansion of the air bag is fixed to the air bag; an infrared emitter and an infrared receiver which can be covered by the corresponding moving plate are arranged on the inner wall of each heat dissipation hole, and each infrared receiver is used for receiving the infrared rays of the corresponding infrared emitter; the distribution box further comprises a controller, and the controller is used for controlling the fan to improve the rotational speed based on the signals of the infrared receivers. According to the distribution box, while the moving plates are adsorbed to the air bags to enlarge the heat dissipation holes, increase of the rotational speed of the fan is controlled to accelerate heat dissipation, and more heat is conducted out of the distribution box with the air by the enlargement of the heat dissipation holes, so that the heat dissipation effect is better.

The invention discloses a multi-nozzle type variable flow rate supercharging device which comprises a volute casing, wherein the volute casing is internally provided with an air inlet and a volute air inlet passageway which is communicated with the air inlet, and the volute air inlet passageway is internally provided at least one intermediate baffle plate. The multi-nozzle type variable flow rate supercharging device provided by the invention has a simple air inlet regulating and controlling mechanism, the control mode is easy to realize, the reliability is high, and the problems of the existing vane type variable turbocharger in the aspects of reliability and efficiency and too low efficiency of a tongue shape baffle plate variable cross section charger are solved effectively.

The invention relates to a multifunctional muffler structure. The multifunctional muffler structure comprises a barrel body, an inner partition plate A, an inner partition plate B, an inner partition plate C and an inner partition plate D are arranged in the barrel body, and an air inlet muffler pipe, a middle muffler pipe and two air outlet muffler pipes are fixed in the barrel body; the four inner partition plates divide the barrel body into five muffler cavities. The air outlet muffler pipes are arranged symmetrically, so that exhaust back pressure is favorable for being reduced, and then the work efficiency of an engine is ensured; because siphons are arranged on the air outlet muffler pipes, water accumulating in a muffler can be eliminated by the utilization of the pressure difference between an inlet and an outlet of the muffler and on the basis of the siphon principle, the muffler is prevented from rusting, and the service life and the using reliability of the muffler are ensured; due to the combination of the multiple muffler cavities and the muffler components, exhaust noise is reduced substantially, and the riding comfort of a whole vehicle is improved; the application of a stamped shell makes the muffler be more beautiful and more elegant and fully show the feel of modern science and technology.

The invention discloses a rotary harrow total pressure test system and test method suitable for an aircraft air inlet channel. The test system comprises a total pressure harrow module, a rotating module and a driving device. The total pressure harrow module is driven by a driving device to rotate so that the pressure probe on the total pressure harrow can test the total pressure at different positions in the outlet of the air inlet channel in a pneumatic operation process. The system is simple in structure, small in size, wide in test range, high in quantization precision and rich in obtained data, avoids additional blockage of a test flow channel by traditional total pressure test systems such as a *-shaped harrow, a water-shaped harrow and the like and even adverse effects that the air inlet channel is not started, and solves the problems that the traditional total pressure harrow is fixed in structure position, single in data and the like. The test precision is greatly improved, the test cost is reduced, the influence on a test flow field is small, and the system is particularly suitable for a total pressure test with a small scaling model and a small flow channel area.

The invention discloses an anti-bubble rotary liquid filling mechanism which comprises an air cylinder (1), a connecting rod (2) and a filling head (3). The filling head (3) comprises a feeding pipe (4) and a discharge pipe (5). A buffer material bin (6) is arranged between the feeding pipe (4) and the discharge pipe (5), the feeding pipe (4), the buffer material bin (6) and the discharge pipe (5) are communicated, the lower end of the discharge pipe (5) is a spiral pipe body (501), the upper end of the discharge pipe (5) is a vertical pipe body (502), a baffle (7) is arranged outside the vertical pipe body (502) in a sleeved mode, a sensor is arranged on the lower surface of the baffle (7), and the sensor is connected with a control unit for controlling a piston rod of the air cylinder (1) to move. The liquid inlet end of the feeding pipe (4) is connected with a gas-liquid separator (8). The anti-bubble rotary liquid filling mechanism can disperse the vertical downward impact force of the liquid, so that when the liquid is injected into a bottle body or a box body, the impact force is small, and bubbles can be prevented from generation.

The invention provides a multi-purpose valve device. The device comprises a valve body and a valve element; a spigot is formed in the valve body and is closely clung to the outer tapered surface of the valve element; the valve element is compressed into the spigot through a valve element core and a sealing pad; a rod arranged at the bottom part of the valve element passes through a hole in the bottom part of the valve rod and then extends out from the valve body; a spring is arranged on the rod; a nut is screwed to threads in the rod to compress the spring; a plurality of inlets are formed in one end of the valve body, and while a plurality of outlets are formed in the other end of the valve body; filters are arranged in the inlets; each inlet is connected with a solution source or an air source through a pipe joint or a connecting pipe; each outlet is connected with a water faucet or a spiral groove injection head through the pipe joint and the connecting pipe. According to the multi-purpose valve device, the valve element communicates with one or a plurality of inlets and one or a plurality of outlets of different specifications in the valve body to control solution flow rate as requirement; the device has the advantages of being simple in structure and convenient to operate; people can accurately control the dosage and save the resource.

The invention relates to a cooling apparatus (100) for cooling a metal material and to methods for operating and producing the cooling apparatus. The cooling apparatus has at least one cooling beam (110) having a plurality of coolant application elements (112) for applying a coolant to the metal material, wherein each coolant application element (112) has an outlet opening having a cross-sectionalarea (112') for the outlet of the coolant. In order to be able to adapt such known cooling apparatuses more precisely to different temperature distributions over the width of the metal material to becooled, according to the invention the density of the cross-sectional areas (112') of the outlet openings of the coolant application elements (112) in the width direction y of the cooling beam (110)is adapted and dimensioned in accordance with the magnitude of the slope of the distribution of the temperature T(y) of the metal material over the width of the latter before running in under the cooling beam (110).