728 results about "Air cleaner" patented technology

The invention belongs to the technical field of engines, and particularly relates to a crankcase ventilation system, a hydrogen internal combustion engine and a crankcase ventilation system control method. The crankcase ventilation system comprises a crankcase, an oil-gas separator, an air filter and a control unit, a hydrogen concentration detection unit is arranged in the crankcase, an inlet of the oil-gas separator is communicated with a first communication port of the crankcase, the air filter is communicated with a second communication port of the crankcase through an air inlet pipeline, and the control unit is connected with the control unit. The air filter selectively communicates with the third communicating port of the crankcase through a first gas supplementing pipeline, and the control unit is in signal connection with the hydrogen concentration detection unit, the oil-gas separator and the air filter. By using the crankcase ventilation system in the technical scheme, the hydrogen concentration in the crankcase is always in a safe range, and the hydrogen internal combustion engine works stably.

The invention relates to the technical field of air filters, in particular to an experimental system and method for detecting an air filter. The system comprises a support frame used for keeping the stability of the experiment system; the test chamber adopts a vertical test channel pipeline, the top and the bottom of the test chamber are respectively provided with a cylinder used for assembling and disassembling an air filter and an absolute filter, and the downstream of the test chamber is provided with double gas sampling ports which are used for separately sampling particulate matter and gas filtering performance tests; the fan subsystem is arranged above the test chamber and is used for simulating air flow under a working condition; the sensor module is used for monitoring various parameters in the testing process in real time; and the data acquisition and processing sub-module is used for receiving the data of the sensor module, analyzing and processing the data and generating a test report. According to the technical scheme, the detection precision can be improved, the test process is simplified, and the filter performance is comprehensively evaluated.

An Air filtering device (1) configured to cleaning of air in a closed volume of air. (1) comprises in a direction (2) of an air flow at least one air filter unit (3). The air filter unit (3) comprises an air filter (5) arranged in a box-shaped housing (4). The air filtering device (1) further comprises an air moving unit (6) interconnected to and arranged downstream with respect to the air filter unit (3). The air moving unit (6) comprises a box-shaped housing (7) with an air inlet opening (8), configured to receive filtered air from the closed volume of air through the air filter unit (3) and with respect to the box-shaped housing (7) opposite an air outlet opening (9) comprising a constriction having a smaller diameter (10) than the diameter of the air inlet opening (8). The air moving unit (6) also comprises a fan (11) interconnected to the air outlet opening (9) configured to draw in the filtered air from the air filter unit into the box-shaped housing (7) through the air inlet opening (8) and to push the filtered air into an air distribution unit (12). The air distribution unit (12) comprising a box-shaped housing (13) interconnected to the fan (11) and having at least one air vent (14) to distribute the filtered air into the closed volume of air.

An air conditioner unit may include a bulkhead defining an indoor portion and an outdoor portion, a vent aperture defined in the bulkhead, and a fan assembly for urging a flow of make-up air from the outdoor portion through the vent aperture to the indoor portion. The fan assembly includes a fan housing having two clamshell upper and lower portions that collectively define a fan slot, an arcuate filter slot, and a make-up air duct in fluid communication with the vent aperture. An auxiliary fan is positioned within the fan slot of the fan housing an air filter is positioned within the filter slot.

The invention discloses a crankcase air supply system, a crankcase air supply control method, a controller and a vehicle, and relates to the field of hydrogen internal combustion engines. The crankcase air supply system comprises a first air supply pipeline communicating with an air outlet of a supercharger and a first end of a four-way valve, and a second air supply pipeline communicating with an air outlet of a pressurized air storage tank and a second end of the four-way valve; the air outlet of the air filter of the hydrogen internal combustion engine is communicated with the third end of the four-way valve, the four-way valve is communicated with the air supply port of the crankcase, and when the hydrogen internal combustion engine is in a high-load and high-moisture state, the opening degree of the first flow adjusting valve is controlled to be larger than that of the second flow adjusting valve. The opening degree of the second flow adjusting valve is larger than that of the third flow adjusting valve. The method is implemented on the basis of the supercharger, the pressurized gas storage tank and the air filter, and the opening degree of each flow regulating valve is regulated, so that the inlet gas water content is reduced while the gas supplementing requirement of the crankcase is met, and the aim of improving the operation reliability of the hydrogen internal combustion engine is achieved.

The utility model aims to disclose a mining single-armed drill carriage, which relates to the technical field of coal mine tunnel drill carriages and comprises a chassis, an anchor protection component and a power part, the anchor protection assembly is arranged at the front end of the chassis, and the power part is arranged behind the anchor protection assembly; the power part comprises a fixed plate, an explosion-proof diesel engine, a diesel oil tank, a water replenishing tank, a water washing tank, an air filter, a wireless remote control receiver, a hydraulic pump and a hydraulic oil tank; the explosion-proof diesel engine and the water washing tank are both arranged at the rear end of the fixing plate, the hydraulic pump and the hydraulic oil tank are both arranged at the front end of the fixing plate, and a smoke exhaust port of a smoke exhaust pipe of the explosion-proof diesel engine is formed in the top of the water washing tank. The device can flexibly adapt to narrow roadways; the explosion-proof diesel engine, the diesel oil tank, the water replenishing tank, the water washing tank, the hydraulic pump, the hydraulic oil tank and the like are compactly arranged, so that the power of the drill carriage is ensured under the condition of a narrow carriage body.

The invention relates to a flat filter element and an air filter. A filter medium body of the flat filter element is completely enclosed by a seal. Within the area enclosed by the seal, the filter medium of the filter medium body has an interruption. In the area of ​​the interruption, the filter medium body is closed by a sealing element. The sealing element prevents the passage of unfiltered air from the raw side to the clean side. The sealing element is dome-shaped. In the assembled state, a support finger of a first housing part engages the sealing element from a first side and extends completely through the filter medium body parallel to the main flow direction, so that the support finger protrudes from the filter medium body on a second side. The dome-shaped area of ​​the sealing element spans the protruding support finger.The sealing element is positioned between the support finger of the first housing part and a support element of a second housing part. The support finger and the support element provide support for the filter medium body on both sides by means of the sealing element.

The utility model discloses an intake preheating system of a methanol engine, the methanol engine and a vehicle, the intake preheating system comprises a methanol heater and an intake pipe, and a heated air outlet of the methanol heater is connected with an air inlet of the intake pipe through a heater throttle valve; an air outlet of the air filter is connected with an air inlet of the air inlet pipe through a throttle valve; according to the utility model, when the engine is in cold start, hot air heated by the heater is continuously input and directly enters the air inlet header pipe of the engine, so that the temperature after the hot air is mixed with fresh inlet air is increased, the air participating in ignition is hot air, and the success of low-temperature start of the methanol engine is further realized.

The invention discloses a supercharged engine assembly and a vehicle. The supercharged engine assembly comprises a Venturi tube, a function channel I and a function channel II. The functional channel I is used for communicating an oil-gas separation gas outlet of the engine to the throat position of the Venturi tube; a diffusion section of the Venturi tube is communicated to the rear side of the air filter and is positioned on the front side of an air inlet of the supercharger; the inlet section of the Venturi tube is communicated to the rear side of the air outlet of the supercharger through a functional channel II; a valve A is arranged on the function channel I, a valve B is arranged on the function channel II, and the valve A and the valve B are controlled to be opened and closed so that the pressure in a crankcase of an engine can be controlled within a preset range. On the premise that the cost can be controlled, the pressure of the crankcase of the supercharged engine can be effectively controlled within a set pressure range through some means.

An air filter for an air filter assembly in an air conditioner is provided, in particular for filtering out particles, preferably pollutants, from air. The air filter contains a filter element with an electrically conductive layer. The air filter also has a housing that partially encompasses a housing interior into which the filter element is inserted. The air filter also has a terminal on the housing that can be contacted from outside the housing interior, which is made of an electrically conductive material and is connected to the conductive layer of the filter element.

The utility model relates to the technical field of hydraulic devices, and provides a pump station device and a heading machine, the pump station device comprises an oil tank, an air filter and a plugging piece; a first mounting hole and a second mounting hole are formed in the top wall of the oil tank and distributed in the two ends of the oil tank in the longitudinal direction of the oil tank. When the pump station device is installed on the heading machine, the longitudinal direction of the oil tank is consistent with the front-back direction of the heading machine. Before the heading machine goes uphill, the front one of the first mounting hole and the second mounting hole is provided with an air filter, and the rear one of the first mounting hole and the second mounting hole is blocked by a blocking piece; before the heading machine goes downhill, the rear one of the first mounting hole and the second mounting hole is provided with the air filter, and the front one of the first mounting hole and the second mounting hole is blocked by the blocking piece. The plugging piece is installed through a threaded structure, and the sealing performance is improved. Thus, when the heading machine is under different working conditions, the air filter can be located at the high position of the oil tank, the liquid level position in the oil tank is lower than that of the air filter, and leakage of hydraulic oil is effectively avoided.

The utility model discloses a special-shaped air filter which comprises a shell, the shell is forwards connected with an air outlet end cover, the shell is backwards connected with a rear end cover, a filter element is arranged in the shell, an air inlet is formed in the shell, and an air outlet is formed in the air outlet end cover. The axial direction of the filter element extends in the front-back direction, a supporting cylinder used for supporting the front end of the filter element is arranged on the front end face of the shell, and the front end of the filter element is inserted into the supporting cylinder. A cavity between the filter element and the shell forms an air inlet cavity, the air inlet cavity is communicated with an air inlet, and the air inlet is in a big-end-down horn mouth shape. The filter element comprises an outer filter element and an inner filter element which are coaxially sleeved together; two groups of filter elements are arranged in the shell side by side up and down at intervals. The air inlet with the small outside and the large inside enables airflow to be better expanded to all the air inlet cavities, flow collection of all parts of the surface of the filter element is more uniform, and the situation that some parts of the filter element are blocked in advance and the overall service life of the filter element is shortened is avoided. The two groups of filter elements are arranged in parallel, so that the same air filtering capacity requirement is met, the diameters of the filter elements are reduced, and the device is more matched with an in-vehicle mounting space which is narrower in the left-right direction and higher in height.

A system and methods are provided for an air filter that detects a pressure differential across the filter, due to contaminant buildup, and indicates when the filter needs to be serviced. The air filter comprises a filter medium supported within a frame and a differential pressure detector incorporated into the frame. The frame supports the filter medium within a HVAC system, and the filter medium removes contaminants from an airstream flowing through the HVAC system. The differential pressure detector signals when the pressure differential across the air filter reaches a threshold value due to contaminant buildup within the filter medium. The differential pressure detector includes circuitry that wirelessly signals an application stored on a user's mobile device to display a notification to the user when the air filter needs to be cleaned or replaced to minimize energy consumption by the HVAC system.

The utility model discloses an engine air inlet system and a vehicle, the engine air inlet system comprises a first air inlet pipeline and an air filter connected to one end of the first air inlet pipeline, and one end, far away from the air filter, of the first air inlet pipeline is provided with a first air inlet; the first air inlet pipeline is provided with a second air inlet, and the second air inlet is located between the first air inlet and the air filter and located behind a front end module in the vehicle. In the embodiment of the utility model, when air enters through the second air inlet, as the second air inlet is positioned behind the front-end module, snow is not easy to enter the second air inlet under the blocking of the front-end module, so that the snow is prevented from entering the first air inlet pipeline and the air filter.

The invention relates to the technical field of combustion engine filters, and discloses an air filter shell component and an air filter element structure for a vehicle, and the air filter shell component and the air filter element structure for the vehicle structurally comprise an upper shell, a lower shell, a filter device, an outer filter shell, blades and a filter element structure. The upper shell and the lower shell can be detached, the internal filtering device can be conveniently maintained and replaced, the replacement efficiency is improved, a vibration piece is arranged on the outer filtering shell, an elastic column is in contact with a shifting piece, the shifting piece shifts the elastic column to vibrate left and right, a brush is driven to shake together, and the vibration piece is arranged on the outer filtering shell. The pre-filtering net is arranged on the base, dust adhering to the filtering net is cleaned, the filtering and intercepting effect of the pre-filtering net is guaranteed, the multiple elastic columns are connected into a whole through the springs on the elastic columns, linkage is generated among the multiple elastic columns, the vibration effect of the elastic columns is improved, the vibration frequency of the elastic columns is higher, and the cleaning effect of the brush on the filtering net is improved.

Air inlet holes are formed in the surface of the air filter, the self-cleaning air filter comprises a cleaning device, the cleaning device comprises a cleaning frame arranged outside the air filter in a sleeving mode, the cleaning frame is detachably provided with a cleaning brush, and bristles of the cleaning brush abut against the outer wall of the air filter. The cleaning device comprises a driving assembly in transmission connection with the cleaning frame, and the driving assembly drives the cleaning frame to drive the cleaning brush to rotate in the circumferential direction of the air filter so as to brush off sundries at the air inlet holes. In the rotating process of the cleaning frame, the cleaning brush is driven to rotate around the outer wall of the air filter in the circumferential direction, sundries attached to the air inlet holes in the outer wall are cleaned, the situation that the sundries block the air inlet holes is avoided, the cleaning brush conducts cleaning work in the working process of the air filter, the air inlet holes are kept not blocked in the working process of the air filter, and the service life of the air filter is prolonged. The air filter can work stably and reliably, manual cleaning is not needed, the work efficiency can be improved, and potential safety hazards existing in manual operation are avoided.

The utility model relates to the technical field of air filter detection, and specifically discloses a novel air filter special-purpose detection tool comprising a pedestal, RPS point position hole seats, an air inlet position detection module, an A reference profiling module and a reference module, the pedestal is in a square structure as a whole, the upper part of the pedestal is provided with a plurality of groups of RPS point position hole seats through a mounting seat, and the RPS point position hole seats are provided with a plurality of groups of air inlet position detection modules. RPS point position holes are formed in the RPS point position hole seats, and the multiple groups of RPS point position hole seats are in butt joint with RPS point positions of the air filter assembly; the air inlet position detection module, the A reference profiling module and the reference module are all arranged on the upper portion of the base, the air inlet position detection module is in butt joint with an air outlet of an air filter assembly, the A reference profiling module is connected with an RPS point position hole seat through a pipeline, and the reference module abuts against the air filter assembly; the method is suitable for batch production and rhythm measurement.

An apparatus and methods are provided for an air filter precleaner for an open air filter box. The air filter precleaner includes a filter medium between a base and a grating that are fastened over an opening into an interior of the air filter box. The filter medium comprises a sheet of filter material having a shape and a size suitable for being supported between the base and the grating. The base is a rigid member that supports the filter medium in a sheet configuration, such that the airstream passes through the filter medium before entering the air filter box. The grating is a rigid member comprising a screen portion surrounded by a frame that is configured to be fastened onto the air filter box. The screen portion comprises a shaped lattice that allows the airstream to pass through the filter medium before entering the air filter box.

The utility model provides an all-terrain vehicle power system and all-terrain vehicle, the power system comprises an engine, an air filter and an air throttle, the air filter comprises an air filter air inlet pipe and an air filter air outlet pipe, the cross sectional area of the inlet of the air filter air inlet pipe is S; the throttle valve comprises at least one throttle air inlet and at least one throttle air outlet, the throttle air inlet is communicated with the air filter air outlet pipe, the throttle air outlet is communicated with an air inlet of the engine, and the cross sectional area of the throttle air inlet is A; 1.31 < = S / A < = 3.13. The ratio of S to A ranges from 1.31 to 3.13, so that the power of the engine can be improved, the proper air inflow can be controlled, and the engine is prevented from being abraded excessively.

A method of assembling a mobile electric power generation system comprises providing a generator trailer having an electric generator, a gas turbine trailer having a gas turbine, an exhaust trailer having an exhaust silencer, and an air filter and ventilation trailer having an air inlet device. Each of the trailers further comprise a trailer alignment system. The method includes arranging the gas turbine trailer at a work site such that the generator trailer and the gas turbine trailer are in an end-to-end configuration. The method includes operably coupling each of the exhaust trailer and the air filter and ventilation trailer to the gas turbine trailer, and correcting a position of the at least one of the generator trailer, the gas turbine trailer, the exhaust trailer, and the air filter and ventilation trailer using the trailer alignment system thereof.

The outlet of a blower extends through a hole in a circuit board to which the blower is attached. Electronics on the board control operation of the blower. The blower can be configured as two blowers in series, to provide more precise control of airflow. An air filter, such as an N95 filter is releasably attached to the blower intake on a front side of the circuit board. The front side of the board can be attached to a support panel, with a gap therebetween, and the air filter facing and in fluid communication with the gap. An air filter gasket is positioned around the edges of the front side of the circuit board, such that air sucked through the air filter over the intake of the blower, first passes through the air filter gasket between the circuit board and the support panel. The air filter gasket can be coarser than the air filter. The blower is well suited for use in a fuel cell apparatus, for supplying an electronically controlled airflow to the fuel cell.

The utility model discloses a combined type air filter, which belongs to the field of air filters and comprises a filter shell, a filter element is placed in the filter shell, a preliminary filtering structure is placed in the filter shell and at the upper end of the filter element, and the preliminary filtering structure is composed of a bottom frame, a top enclosure frame and a conical filter screen. The top enclosure frame and the conical filter screen are both fixedly installed at the upper end of the bottom frame, the conical filter screen is located on the inner side of the top enclosure frame, the preliminary filtering structure is arranged above the filter element of the filter, the preliminary filtering structure can pre-filter air entering the filter shell, and therefore large particles in the air are blocked, and the air can be effectively filtered. According to the filter element of the filter, large particles are effectively prevented from entering the filter element of the filter, accumulation of impurities on the filter element of the filter is slowed down, the burden of the filter element of the filter is reduced, meanwhile, the filter element of the filter can keep a good filtering effect for a long time, and then the replacement frequency of the filter element of the filter is reduced.

The invention relates to the field of automobile parts, in particular to an automobile air filter with a dustproof function, which comprises a filter body, an air inlet structure, a double-channel dust removal mechanism and a dust collection structure, the air inlet structure comprises a three-way pipe and two opening and closing structures, and the two opening and closing structures are arranged at the two ends of the three-way pipe correspondingly. The double-channel dust removal mechanism comprises a case, two dust removal structures, a vibration structure and an air outlet control structure, a first mounting bin and a second mounting bin are formed in the case, the two dust removal structures are connected with the two opening and closing structures respectively, the vibration structure is connected with the two dust removal structures, and the air outlet control structure is connected with the two dust removal structures and the filter body; the dust collection structure is connected with the two opening and closing structures; the air inlet structure, the double-channel dust removal mechanism and the dust collection structure are arranged, and an alternate cleaning mechanism is adopted, so that dust removal efficiency reduction caused by dust accumulation is effectively avoided, and it is ensured that the filter body can continuously and efficiently operate.

The utility model belongs to the technical field of waste liquid recycling equipment, and particularly relates to a dichlorofluoroethane waste liquid recycling device which comprises a waste liquid cylinder, the interior of the waste liquid cylinder is of a cavity structure, waste liquid is layered after being poured into the waste liquid cylinder for standing, and the waste liquid in the cylinder is divided into three layers, namely an upper floating oil layer, a middle standing layer and a lower particle layer; an observation window and an air filter are respectively arranged at the top of the waste liquid cylinder; a waste liquid outlet communicated with the waste liquid cylinder is formed in one side of the bottom of the waste liquid cylinder; a collector communicated with the waste liquid cylinder is arranged outside the waste liquid cylinder; and a recycling part is also arranged in the cylinder body of the waste liquid cylinder. According to the recycling device, the recycling component is arranged in the waste liquid cylinder, the purposes of recycling and reusing the dichlorofluoroethane waste liquid and reusing the dichlorofluoroethane waste liquid by using a middle standing layer are achieved by adopting a physical method and through natural standing, layering, semi-automatic liquid taking and filtering of the waste liquid, the purposes of no power consumption, safety and environment-friendly recycling are achieved, the using cost is low, and the recycling device is suitable for industrial production. And benefits are brought to enterprises.

The utility model relates to the field of recycling devices, in particular to a carbon emission preheating recycling device which comprises a box shell, a water outlet groove and an exhaust groove, the water outlet groove is formed in the front side of the box shell, the exhaust groove is formed in the right side of the box shell, an air suction device sucks carbon emission gas, the carbon emission gas is fed into an air filter through a third air feeding pipe, and dust and sand in the gas are removed; a motor drives a rotor in a compression main machine to rotate, gas fed by an air filter is mixed with engine oil, a large amount of heat is generated, gas steam is formed and discharged, high-temperature oil and gas are conveyed to an oil-gas separation barrel for oil-gas separation, and treated high-temperature and high-pressure gas is conveyed to a cooling device. And the hot water is conveyed to a hot water storage tank, is discharged through a water outlet pipe, and is conveyed to a warm air blower through a second water conveying pipe to form warm air on the other hand.

The invention discloses an air filter for a vehicle, and relates to the field of automobile accessories, the air filter comprises a filter main body, the outer side wall of the filter main body is fixedly connected with a mounting lug, and the inner hexagon bolt penetrates through the mounting lug and is in threaded connection with the vehicle; the filter element is rotationally arranged in the lower shell and used for filtering air entering the engine; the dust removal mechanism comprises a wind speed detector fixedly connected to the interior of the connecting pipe, a clamping spring fixedly connected to the inner side wall of the lower shell and a movable plate movably arranged in the lower shell and used for knocking the filter element, and the outer side wall of the movable plate is fixedly connected with the outer side wall of the clamping spring. According to the air filter for the vehicle, periodic collision is formed between the movable plate and the edges of the filter element in the rotating state, the vibration frequency of the movable plate is in positive correlation with the rotating speed of the filter element, and dust attached to the inner surface of the movable plate can be separated through vibration generated by collision.

The invention discloses a constant-resistance maintenance-free air filter powered by a vehicle gas turbine. The constant-resistance maintenance-free air filter comprises an air inlet waterproof unit, an inertia separation unit, a dust extraction system and a gas turbine air inlet connecting section. The air inlet waterproof unit, the inertia separation unit and the gas turbine air inlet connecting section are sequentially connected in a sealed mode. A grating is arranged at the upstream end of the air inlet waterproof unit, and a drainage hole is formed in the bottom of the air inlet waterproof unit; the grating is used for intercepting water in external air; water is discharged from the drainage hole; a dust collection cavity and a straight-flow type rotational flow pipe set are arranged in the inertia separation unit, the straight-flow type rotational flow pipe set is used for separating air and dust, the separated dust enters the dust collection cavity, and the separated air enters the gas turbine through the gas turbine air inlet connecting section; the dust suction system is connected with the inertia separation unit, communicates with the dust collection cavity and is used for sucking out dust in the dust collection cavity, a filter element is not needed, and the problems that resistance of a traditional filter element is increased due to dust accumulation, and an air filter is fast to block and needs to be frequently maintained in a high-dust environment are solved.

A conformable, unframed pleated air filter, comprising a plurality of bridging filaments on at least one face of the pleated air filter.

The utility model relates to the technical field of air filter machining, in particular to an automobile air filter machining turnover device which comprises a base, supporting frames are fixedly installed on the two sides of the top of the base, an electric clamping jaw is rotationally connected between the opposite sides of the pair of supporting frames, and a driving assembly is arranged at the top of the base. The driving assembly is used for driving the pair of electric clamping jaws to turn over synchronously. Wherein the top of the base is slidably connected with a feeding plate, the top of the feeding plate is provided with a positioning piece used for positioning an air filter, the rotating shaft rotates to drive the electric clamping jaws to rotate, the pair of electric clamping jaws are driven to rotate synchronously, and meanwhile the pair of air filters can be machined in cooperation with the feeding plate. The machining efficiency is improved, different air filters can be positioned within a certain range through the mode that the positioning columns are adjustable, deviation is prevented, and it is ensured that the electric clamping jaw can stably clamp the air filters.

The invention relates to the technical field of data processing, in particular to an equipment state monitoring method and system based on data analysis, and the method comprises the steps: collecting pressure drop data and air velocity data of an air filter, carrying out the multiple filtering of all pressure drop data, and obtaining the final noise degree of each pressure drop data before each filtering, and judging whether the voltage drop data needs to participate in the current filtering or not based on the final noise degree of each voltage drop data, if so, adaptively adjusting the filtering window of the voltage drop data by using the final noise degree of each voltage drop data, and if not, ending the filtering of the voltage drop data. According to the method, filtering is carried out on the basis of the filtering window adjusted based on all the pressure drop data, whether the performance state of the air filter is abnormal or not is evaluated according to all the filtered pressure drop data, the whole filtering precision is improved, the authenticity of the pressure drop data is guaranteed, and accurate monitoring of the performance state of the air filter is achieved.