478 results about "Airbox" patented technology

The invention relates to a simplified gas delivery system for atomic layer etching. According to the system, the overall cost is reduced by omitting the requirements of a gas tank and a pressure gauge. A preset mass flow controller (MFC) and a three-way valve can accurately control the gas flow in the surface modification step and the sputtering step of the ALE process. By means of the self-limiting property of the ALE process, the system does not need to maintain the steady-state pressure of the chamber, and the efficiency can be improved only by controlling the volume of the conveyed gas.

The invention relates to the technical field of ring main units, and provides a self-adaptive protection device for a ring main unit, which comprises a cabinet body, a gas tank mounted on the back of the cabinet body and filled with environment-friendly insulating gas, and a pressure relief pipe with one end communicated with the top of the gas tank and used for pressure relief of the gas tank, the top of the gas tank is provided with a pressure relief regulation and control assembly, and the top of the pressure relief regulation and control assembly is provided with a dustproof assembly. The pressure relief regulation and control assembly comprises a funnel-shaped main speed discharging barrel arranged at the top of the air box and a butt joint sleeve for connecting the main speed discharging barrel with the pressure relief pipe in a sealed mode. During use, the main pressure relief channel and the branch slow-heating pressure relief channels are utilized and respond to instantaneous high-pressure impact and continuous hot pressing respectively, so that deformation and damage of the gas tank caused by instantaneous arcing overpressure are effectively prevented, and the potential safety hazard that pressure accumulation caused by abnormal slow temperature rise cannot be released in time is eliminated; and self-adaptive protection of the ring main unit gas tank is realized.

The invention relates to the technical field of aero-engines, and particularly provides a variable cycle engine duct experiment system and experiment method. A variable cycle engine duct experiment system comprises: a first combined experiment member comprising a main flow valve and a shunt ring; the second combined experiment piece comprises a first outer culvert, a second outer culvert and an ejector; the inlet of the variable capacitor second external culvert experiment piece is connected with the external culvert outlet of the shunt ring, and the outlet is connected with the second external culvert; an inlet of the first gas collection tank is communicated with an inner culvert outlet of the shunting ring; the bypass ratio adjusting valve is used for adjusting the bypass ratio at the shunting ring; an inlet of the second gas collection tank is connected with an outlet of the first gas collection tank through an inner culvert pressurization simulator, and an outlet is communicated with the first outer culvert; an inlet of the variable capacitor confluence duct experiment piece is communicated with the second outer duct; and the outer culvert throttle valve is connected with an outlet of the variable capacitor confluence culvert experiment piece. According to the technical scheme, engine duct experiments in multiple modes can be achieved, and the experiment efficiency is improved.

A motorcycle with a single transmission breather that is mounted over the transmission case. Crank case gas passes through the breather. Oil separated from the breather drains back to a cavity under the breather. Gases separated in the breather travel through a breather hose to an airbox. The breather utilizes a sloped incline in order to prevent oil that separates out from pooling.

1. The name of the design product: Air. 2. The use of the design product: used for Carplay, Android Auto, HiCar, Android system, and original car upgrade intelligent multimedia function, and smart phone mirror projection, wireless interconnection control. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a cast rolling production degassing box which comprises a supporting base fixedly installed on the ground, a degassing box body is fixedly installed on the upper surface of the supporting base, a supporting frame is fixedly installed on the outer portion of the rear side of the degassing box body, and a gas storage box storing inert gas is fixedly installed on the upper surface of the supporting base. A first air pump communicated with the air storage box is fixedly installed on the upper surface of the air storage box, the first air pump is communicated with a containing groove formed in the bottom end of the interior of the degassing box body through a conveying pipe, the air storage box is connected with a preheating mechanism in the degassing box body, and an air brick is fixedly installed at the lower end of the interior of the degassing box body; and a stirrer is rotationally mounted above the air brick. According to the degassing box for cast-rolling production, the heat exchange pipeline is heated through the temperature of molten aluminum, inert gas in the gas storage box circularly flows in the heat exchange pipeline through cooperation of the second gas pump and the connecting pipe, the purpose of preheating gas is achieved, and the situation that the molten aluminum is solidified due to the low temperature when the gas is introduced into the molten aluminum is reduced.

The invention relates to the technical field of heat treatment equipment, in particular to metal part heat treatment equipment and method.The metal part heat treatment equipment comprises a foundation and a closed box, a track extending into the closed box is laid on the foundation, a workpiece conveying trolley is arranged on the track and provided with at least one set of hanging discs, and workpieces are hung on the lower sides of the hanging discs; a heat treatment furnace and an immersion tank are arranged on the lower side of the closed box; the side edge of the closed box is provided with an inlet / outlet corresponding to the track, the inlet / outlet is provided with a sealing door, the closed box is provided with an exhaust pipe, the exhaust pipe is connected with a vacuum pump and comprehensive waste gas treatment equipment, the closed box is communicated with a gas supply pipe, the gas supply pipe is connected with a gas distribution box, and the gas distribution box is connected with a gas storage tank; the closed box is arranged on the heat treatment furnace, the internal environment is isolated, the heat treatment reliability and efficiency are improved, meanwhile, during annealing heat treatment, the time of a workpiece in the heat treatment furnace can be shortened, and the use efficiency of the heat treatment furnace is effectively improved.

The invention discloses a switch cabinet using clean air as an insulating medium, and particularly relates to the technical field of electrical equipment, the switch cabinet using clean air as the insulating medium comprises a cabinet body, an air box, a fixed disc, a sealing spacer bush, a cylindrical sleeve, a clamping sleeve and a sealing ring; a contraction unit; the air supplementing unit is arranged in the air box and used for supplementing air into the air box when the clamping sleeve shrinks. According to the invention, the contraction unit triggers and drives the clamping sleeve to generate elastic contraction deformation, so that the hole wall of the cable penetrating hole clamps the sealing ring, the sealing ring and the surface of the cable are in closer contact, the leakage phenomenon of the cable and the cable hole is reduced, in addition, when the air pressure in the air box is reduced, the air supply unit acts, and then air can be supplied to the air box. The gas pressure in the gas tank is increased, so that the positive pressure state in the gas tank is maintained in a short time, the concentration of an insulating gas medium in the gas tank is improved, and the arc extinguishing of the gas tank is prevented from being greatly influenced.

The invention relates to the technical field of gas insulation ring main units, discloses an intelligent environment-friendly gas insulation ring main unit, and solves the problem that when a gas leakage part of an environment-friendly gas tank is positioned, environment-friendly gas cannot be smoothly and sensitively captured by a gas monitor, so that the positioning difficulty of the gas leakage part of the gas tank is relatively high. Air flow generated during air leakage in the sealing cover drives the fan blades to deflect, the position of a connecting piece where air leakage occurs in the air box is determined according to the position of the driven measuring assembly, the specific direction of the air leakage position on one side of the connecting piece is determined, later maintenance is facilitated, detection is not affected by physical or chemical properties of environment-friendly gas stored in the air box, and the detection accuracy is improved. The detection effect is reliable, tracer gas is further introduced into the rubber cover, when gas leakage at the assembly position of the connecting piece is slow, the tracer gas flows into the gas detection pipe and is detected by the gas detector, the gas leakage condition can be detected, and the safety and reliability of gas leakage detection of the gas tank are further improved.

The utility model relates to a pipeline derusting device for shipbuilding, which comprises a pipe body, a positioning mechanism is arranged in the pipe body, an adjusting mechanism is arranged on the positioning mechanism, a polishing component is arranged on the adjusting mechanism, the adjusting mechanism comprises an air storage tank, a protection tank and an air pump, the air storage tank is arranged in the pipe body, and a piston cylinder is communicated with the air storage tank. A piston plate is arranged in the piston cylinder in a sliding and tight fit mode, a piston rod is fixed to one end of the piston plate, a protection box is arranged on the positioning mechanism, a rotatable rotating shaft is transversely arranged in the protection box, one end of the rotating shaft is fixed to the air storage box, and the rotating shaft is hollow. According to the pipeline rust removal device for shipbuilding, by arranging the adjusting mechanism, when the inner peripheral wall of a pipe body needs to be ground, the grinding assembly can be driven by the adjusting mechanism to be rapidly attached to the inner peripheral wall of the pipe body, then rotary grinding is conducted, the effect of removing rust on the inner wall of the pipeline for the ship is achieved, and the labor amount of workers is reduced; and meanwhile, the polishing and derusting efficiency and quality are guaranteed.

The present disclosure discloses a ring main unit (RMU) comprising a gas box, a fixing frame fixed to the inner side wall of the gas box, and a circuit breaker switch located within the gas box. The circuit breaker switch includes a circuit breaker body. The circuit breaker body includes an insulating housing and a first end and a second end located at opposite ends of the insulating housing. The first end is provided with a first fixing seat, and the second end is provided with a second fixing seat. The first and second fixing seats are both metal members and each encloses a shielding space to cover the conductive members provided on the first and second ends. The first fixing seat is fixed to the fixing frame via an insulator, and the second fixing seat is fixed to the fixing frame via another insulator.

The invention relates to the technical field of air tightness detection devices, in particular to a casting part air tightness detection device which comprises a rack, a press-fitting module and a transfer mechanism which are mounted on the rack, a plurality of airtight joints mounted on the press-fitting module, and plugging heads and flow guide parts which are fixedly mounted on the airtight joints, the flow guide part comprises a flow guide cover wrapping the plugging head, the flow guide cover is fixedly connected with an air box through a pipeline, an air flow detection module and an air suction pipe are installed on the air box, and the air suction pipe is communicated with an air suction pump, so that the real leakage of a workpiece and the sealing failure of the tool are effectively distinguished, and qualified workpieces are prevented from being scrapped due to misjudgment; the accuracy and reliability of a detection result are greatly improved, the maintenance cost is reduced, and the production efficiency is improved.

The invention belongs to the technical field of ring main unit equipment, and discloses a compact modular ring main unit with a cable testing function and an interlocking function. The ring main unit comprises a cable chamber and a gas box core unit fixed on the cable chamber, the front part of the gas box core unit is provided with a mechanism chamber, and the top of the mechanism chamber is provided with a control box chamber with a special-shaped design; a left load switch mechanism cover plate, a left detection facility cover plate, a circuit breaker switch mechanism cover plate, a right load switch mechanism cover plate and a right detection facility cover plate are installed right in front of the mechanism chamber. Mechanical interlocks are respectively arranged between the left detection facility cover plate and the grounding mechanism and between the right detection facility cover plate and the grounding mechanism; and manually operated interlocking devices are arranged between the left load switch mechanism cover plate and the left detection facility cover plate and between the right load switch mechanism cover plate and the right detection facility cover plate. According to the invention, the ring main unit product has modular and standardized design.

The invention discloses a material conveying device and air box head machining equipment, the material conveying device comprises a controller, an inner rotating disc (10), an outer rotating disc (20), a screening mechanism (50) and a baffle ring (30), the baffle ring (30) comprises a first baffle (41) and a discharging part (31), and in the vertical direction of the conveying device, at least part of the first baffle (41) is located above the outer rotating disc (20); in the rotating direction of the conveying device, the first baffle (41) is located on the upstream of the discharging part (31), a screening mechanism (50) is arranged between the first baffle (41) and the discharging part (31) and comprises an air blowing device (51) and a detection device (52), the air path extending direction of the air blowing device (51) faces the inner rotating disc, and the detection device (52) is arranged on the outer rotating disc. And the detection device (52) and the blowing device (51) are electrically connected with the controller. The device can realize automatic discharging of materials, and has the advantages of low noise, high speed and the like.

The utility model provides a metal plate spliced environment-friendly gas ring main unit, which comprises a gas tank assembly body, a control chamber assembly body, a mechanism chamber assembly body and a cable chamber assembly body, one side of the gas tank assembly body is connected with the mechanism chamber assembly body through a connecting bolt, the control chamber assembly body is arranged at the upper part of the mechanism chamber assembly body, and the cable chamber assembly body is arranged at the lower part of the control chamber assembly body. A cable chamber assembly body is installed on the lower portion of the air box assembly body and the lower portion of the mechanism chamber assembly body, positioning installation holes are formed in the side faces of the air box assembly body and the mechanism chamber assembly body, and a mechanism chamber insulation fixing top plate is installed on the upper portion of the mechanism chamber assembly body. According to the utility model, the mechanism chamber insulation fixing left side plate and the mechanism chamber insulation fixing bottom plate are bent in a Z shape, and the connecting bolts are welded on the upper side of the gas box assembly body and are fixed by the nuts, so that the interference of a gas box welding seam is avoided, the assembly tolerance is not influenced by the size of the welding seam, and the consistency of the appearance size of the assembled ring main unit can be ensured; and on-site cabinet combination installation is facilitated.

This utility model relates to the field of catalytic combustion device technology, and discloses a catalytic combustion device for industrial waste gas treatment, comprising: a catalytic combustion chamber, wherein a waste gas supply pipe is installed at the inlet end of the catalytic combustion chamber; an outlet pipe is disposed at the top outlet of the catalytic combustion chamber, a hot gas supply pipe is installed at the outlet end of the outlet pipe, a gas storage tank is installed at the outlet end of the hot gas supply pipe, and a dilution gas pipe is installed at the outlet of the gas storage tank. By mixing preheated air in the gas storage tank with high-concentration waste gas through the dilution gas pipe, the concentration of high-concentration waste gas can be reduced. Simultaneously, the air is heated, which reduces interference with the waste gas temperature and prevents high-concentration waste gas from directly entering the catalytic combustion chamber. This effectively prevents a sudden temperature rise inside the catalytic combustion chamber, avoids localized high temperatures inside the catalytic combustion chamber due to waste gas concentration approaching or exceeding the lower explosive limit, and improves the safety performance of the device.

The invention provides a centrifugal coal slime water solid-liquid separator, which belongs to the technical field of coal mine solid-liquid separation, and comprises a bottom frame assembly, an outer rotary drum assembly, an inner spiral pushing assembly, a drying assembly, a conveying assembly, a primary screening assembly, a cleaning assembly and a multi-purpose blowing assembly, basic solid-liquid separation work of slime water can be completed; when rotating, the rotary drum not only can drive the conveying belt to automatically roll and convey materials, but also can drive the sieve plate in the sieve bucket to swing and rotate back and forth within a first range, so that slime water entering the inner spiral cylinder is screened and filtered in advance, large-particle substances are screened to the upper surface of the conveying belt, and meanwhile, the conveying belt is driven to rotate synchronously. A cleaning brush roller is driven to rotate, and a compressor of a telescopic air box is loosened to work, so that the conveying belt is efficiently cleaned; and the drying assembly is used in cooperation, and coal slime particles falling into the solid material box through the solid material discharging pipe and the conveying belt are automatically dried.

The invention discloses an underground structure retaining wall transportation device convenient to use, and belongs to the technical field of underground structure retaining wall transportation. The air pressure assembly comprises two telescopic columns, the outer end of any telescopic column is provided with a telescopic cylinder, and the end, away from the telescopic column, of the telescopic cylinder is provided with an air box; the reset assembly comprises a first sliding cylinder installed at the end, close to the air box, of the inner side wall of the transport box. The detection assembly comprises a controller mounted at one end of the outer side wall of the transportation box; and the mounting assembly comprises a mounting box mounted at the outer end of the transport box. Through the first protection plate and the second protection plate in the transportation box, when the underground structure retaining wall enters the placement plate, the upward moving height of the protection plates can be automatically adjusted according to the air pressure of the air pipe entering the transportation box; damage caused by falling when the underground structure retaining wall needing to be transported is higher than the transport box can be effectively prevented, and the cost of an enterprise is reduced.

The utility model relates to a vacuum pump testboard, which belongs to the technical field of automobile vacuum pump testing, and comprises a testboard and a protective box, and a testing mechanism for testing the pumping efficiency of a vacuum pump is arranged outside the testboard; the testing mechanism comprises a hydraulic cylinder fixedly connected to the top of the protection box, an output shaft of the hydraulic cylinder is fixedly connected with a gas storage box, a gas flowmeter is installed on the outer side of a gas outlet pipe, limiting rods are fixedly connected to the periphery of the top of the testing table, and sliding blocks are fixedly connected to the left side and the right side of the gas storage box correspondingly. The sliding block is slidably connected with the limiting rod, and the middle part of the top end of the test bench is fixedly connected with a positioning groove. According to the vacuum pump test bench, the function of testing the pumping efficiency of the vacuum pump is realized, and the influence of different parameter settings on the performance of the vacuum pump is analyzed by testing the pumping efficiency, so that the optimal working parameter combination is found, the vacuum pump operates in the optimal state, the service life of the vacuum pump is prolonged, and the working effect of the vacuum pump is improved.

This application claims protection for a pressure vessel, a lighter, and an ignition gun. The pressure vessel includes a gas box and a base plate. The gas box includes a gas box body and a threaded sleeve, which is housed within the gas box body and integrally injection molded with the gas box body. The threaded sleeve is used to connect to an exhaust valve. The base plate is connected and sealed to the gas box body, and a cavity is formed between the gas box body and the base plate to contain fuel. The cavity communicates with the threaded sleeve so that the exhaust valve connected to the threaded sleeve can control the release of fuel. This not only reduces the manufacturing complexity and production cost of the gas box but also ensures the accuracy of the threaded sleeve's assembly position on the gas box body, avoiding tolerance fluctuations and cracking risks between the threaded sleeve and the gas box body. This improves the sealing performance and assembly reliability of the pressure vessel, effectively solving common problems such as poor flameout and ignition failure, and providing a reliable guarantee for the performance improvement of lighters, ignition guns, and other products.

The utility model discloses a walking machine bottom plate aluminum frame bending device which comprises an operation platform horizontally placed on the ground, a fixing die is fixedly installed on the upper surface of the operation platform, and an aluminum frame plate which needs to be bent and formed and is applied to a walking machine bottom plate is placed on the side face of the fixing die. A movable mold matched with the fixed mold is arranged above the operation platform, and the fixed mold and the movable mold are each provided with an arc-shaped structure. According to the bending device for the aluminum frame of the bottom plate of the walking machine, the novel structural design is adopted, the movable mold is pushed to move through the telescopic air cylinder, so that the movable mold and the fixed mold are matched with each other to achieve the purpose of extruding and bending an aluminum frame plate, and gas in the gas storage tank is conveyed into the heating spray head through the gas conveying pipe before bending; and finally, the purpose of heating the aluminum frame plate is achieved through ignition of the heating spray head, the aluminum frame is softened, and the situation that the aluminum frame is broken during bending is avoided.

A high-altitude double-grounding gas-filled cabinet gas tank structure comprises a gas tank formed by connecting a plurality of plates, the gas tank is filled with insulating gas, and the gas tank is divided into an upper gas tank, a middle gas tank and a lower gas tank along the height direction; the upper gas tank is internally provided with a first grounding system, the first grounding system is a two-station grounding switch and comprises a first guide sleeve and a first conducting rod, and one end of the first guide sleeve is provided with an insulation plugging structure, so that the first conducting rod can only move in a single direction; a second grounding system is arranged in the middle gas tank, the second grounding system is a three-station isolating switch, the three-station isolating switch comprises a second guide sleeve and a second conducting rod, and the two ends of the second guide sleeve are open, so that the second conducting rod can move in two opposite directions. Two sets of grounding systems are arranged, when one set of grounding system fails due to reasons, the other set of grounding system can still operate normally, and personal safety is guaranteed.

The utility model discloses a kind of steel bottle sealing property detection devices, including processing table, gas conveying component, the processing table upper portion is provided with lifting assembly, and lifting assembly can drive sealing head to move, the sealing head is used to seal the open end of steel bottle, and sealing head inside is provided with connecting pipe, the gas conveying component is sent gas to steel bottle interior by connecting pipe, and gas conveying component is connected with gas tank gas outlet, the gas tank both sides are provided with first air inlet and second air inlet, and first air inlet is connected with gas storage tank by communicating pipe component, the utility model is switched by the sealing plate in the gas tank inside and drive motor cooperation, the communication state of first air inlet and second air inlet can be switched by driving sealing plate rotation, to further make device can be detected by the inert gas or external gas of gas storage tank to steel bottle, to meet the detection needs of different types special gas steel bottle.

This utility model discloses a fully enclosed insulated gas-filled cabinet, including a cabinet body, a gas box installed on the cabinet body, and a three-position isolating circuit breaker installed inside the gas box. The top of the outer side of the gas box is provided with multiple external heat sinks, and a crossflow fan is installed on the top of the gas box. The top of the inside of the gas box is provided with multiple first internal heat sinks, and multiple second internal heat sinks are provided on both sides of the inner wall of the gas box. Cooling fans corresponding to the second internal heat sinks are symmetrically installed at the bottom of the inner wall of the gas box. This utility model improves the passive heat dissipation capacity of the gas box through the arrangement of the second internal heat sinks, first internal heat sinks, and external heat sinks. Furthermore, when encountering high load conditions leading to high temperatures, the cooling fans and crossflow fans are automatically activated by a temperature sensor and controller to actively dissipate heat, thereby improving the heat dissipation capacity of the gas box and preventing excessively high temperatures.

The invention relates to a cooling system and an evaporative cooling transformer, the cooling system comprises a cooling device, a gas tank and a condensing device, the cooling device is respectively communicated with a transformer box body of the evaporative cooling transformer through a transformer liquid inlet pipe and a transformer liquid outlet pipe to form a cooling medium circulation loop, and the cooling medium is evaporative cooling liquid; the gas box is arranged on a box cover of the transformer box body, and the gas box is communicated with the transformer box body; the condensing device is connected between the gas tank and the transformer liquid outlet pipe and used for condensing the gaseous cooling medium in the gas tank into a liquid cooling medium and sending the liquid cooling medium into the transformer liquid outlet pipe. The cooling system can cool a gaseous cooling medium into a liquid cooling medium, so that the liquid cooling medium participates in cooling circulation, pressure unbalance in the transformer box body is prevented, and the cooling efficiency is ensured.

The utility model relates to the technical field of dust removal equipment, in particular to a dust fall buffering air box device which is installed on a coal conveying belt. Comprising a box body arranged above a coal conveying belt, a baffle plate arranged at the lower end of the box body and used for covering a gap space between the box body and the coal conveying belt, a flow guide channel formed in the box body, an impeller rotationally arranged in the box body, and a flow guide plate arranged in the box body and used for dividing the flow guide channel into an inlet channel and an outlet channel together with the impeller, the flexible shielding curtain is arranged at the lower end of the flow guide plate and is used for shielding a gap space between the flow guide plate and the coal conveying belt; a plurality of electric spraying heads are further arranged in the inlet channel, and each electric spraying head is connected with a pipeline and connected to tap water through the pipeline; the spraying device further comprises a PLC, and all the electric spraying heads are electrically connected with the PLC. The dust falling buffer gas tank device can effectively reduce flying and overflowing of coal dust, protect the environment and improve the working conditions.

The present invention discloses a tire inflation and deflation sealing device and a method of using the same, comprising: a body, with a mounting plate disposed on the front side; a storage chamber, with a pre-storage chamber connected to one side; an inflation and deflation chamber, including an inflation box and a deflation box, the inflation and deflation chamber being disposed on the other side of the storage chamber, a first extrusion plug being disposed inside the inflation box, a first electric screw being disposed between the first extrusion plug and the top of the inner wall of the inflation box; and an air pipe, with an inflation pipe and a deflation pipe disposed inside. The present invention can detect the gas discharged from the tire, and when inflation is required, a certain amount of gas of suitable temperature is filled into the tire, so as to avoid a large temperature difference of the gas filled to affect the use of the tire, thereby ensuring the stability and safety of the use process, and can also discharge the discharged gas separately, so as to avoid gas mixing and affecting the subsequent tire inflation use. The pre-storage chamber is provided, so that inflation operations can be performed for a long time and multiple times, and the tire can be used multiple times to avoid repeated gas replenishment.

The invention discloses a ring main unit of an environment-friendly gas insulation lower isolation circuit breaker switch. The ring main unit comprises a gas box, a circuit breaker mechanism, an isolation mechanism and a lower isolation circuit breaker switch. An expansion sleeve and an incoming and outgoing line sleeve are arranged in the gas tank; the circuit breaker mechanism and the isolation mechanism are mounted on the gas tank; the lower isolation circuit breaker switch is arranged in the air box; the lower isolation circuit breaker switch comprises a circuit breaker switch and an isolation switch; the circuit breaker switch comprises a circuit breaker main shaft, a circuit breaker frame plate and an arc extinguish chamber; the isolation switch comprises an isolation frame plate, an isolation main shaft, a static contact seat, a moving knife, a grounding contact and a static contact. The circuit breaker mechanism drives the main shaft of the circuit breaker to rotate, a cam arranged on the main shaft of the circuit breaker transmits acting force to a connecting pull rod through a roller and a rolling shaft, and then an arc extinguish chamber movable guide rod is driven to move, so that the switching-on and switching-off actions of a circuit breaker switch are realized; the insulation capability is improved by equalizing the electric field through the voltage equalizing cover, and the better insulation effect is achieved.

The present disclosure relates to an embodiment of an improved air intake system of a vehicle incorporating a modular hood plenum configured for receiving various interchangeable components including an engine air pre-cleaner, a cover plate and / or a snow door for mounting separate from the airbox assembly of the vehicle. The modular hood plenum includes a mounting interface that enables mounting of components within the hood rather than the air intake system, allowing easy access for service and / or replacement of components without compromising the air intake system of the vehicle.

An assembly for a snowmobile includes an airbox having a plenum for coupling to a throttle body of an engine and two branches defining openings for air intake. A storage box is mounted between the two branches and defines area for receiving a console. The airbox is part of a hood of the vehicle and includes an opening over a storage box. The disclosure also includes a ribbed bumper mount with a latch assembly for securing the hood.