CN204738895U - Engine air filter - Google Patents

Abstract

The utility model provides an engine air filter, includes main air cleaner, and it has one set of supplementary air filtration system to set up on main air cleaner's side, and supplementary air filter is in the closed condition when main air cleaner ability effective filtration, when supplementary air filtration system leads to internal -external differential pressure is greater than or equal to 1KPa at main air filter because of dust, impurity block up, put into operation into operation to the assurance engine runs well. The utility model discloses increase safe filter core and bypass device on the basis of original air cleaner filter core, when the condition emergence of jam appears in the main filter core, supply with required air through shunting device and safe filter core for the engine, solved the two major problems of present engine power industry.

Description

A kind of air filtering device of engine

Technical field

The utility model relates to a kind of part device of motor, is specifically related to a kind of air filtering device of engine, belongs to engine air filtration art, is mainly used in operating mode place very in rugged environment.

background technique:

Air-strainer is the device that motor filters the dust in air, impurity when working air inlet, when the blocking such as dust, impurity is to certain degree, all can form certain resistance and impact to air inflow and intake velocity etc., finally cause tripping operation and quit work.Current solution is all adopt alarm set; prompting maintenance personnel enter newly cleaning or more renew cartridge; but cleaning or more renew cartridge must shut down, can cause damage to a certain extent, and if alarm set is malfunctioning or cleaning, change will cause not in time motor shut down and cause damage.

At present block for filter cleaner the solution causing motor trip to remind mainly through warning device, if device is malfunctioning or process not in time, motor just can trip and cause damage, while more renew cartridge time must shut down and also can cause certain loss.Therefore necessary this to be improved.

Do not find that there is the patent literature constructed with the utility model by patent retrieval, to have the patent of certain relation to mainly contain following with the utility model:

1, the patent No. is CN200620033024, name is called the utility model patent of " a kind of air filter element cleaning device for internal combustion engine ", which disclose a kind of air filter element cleaning device for internal combustion engine, in particular to the washing unit of mining heavy-duty air filtering core, comprise power input portion, cleaning part and control of dust part, power input portion comprises motor, retarder, motor is connected by coupling with retarder, cleaning part comprises suction tude, flexible pipe, pneumatic motor, sprocket wheel, rotating shaft, cleaning tracheae, cleaning shower nozzle, filter core holding device, suction tude by threeway respectively with pneumatic motor, flexible pipe is connected, the other end of flexible pipe is connected with cleaning tracheae, dust collecting section is divided and is comprised casing, collection bag, collection bag fixing device and ventilating fan, filter core holding device is positioned at the top of casing, collection bag is bound in the bottom of casing by collection bag fixing device.

2, the patent No. is CN201010271458, name is called the utility model patent of " the dismounting separation and recovery method of recycling air filter element of internal combustion engine ", which disclose a kind of dismounting separation and recovery method of recycling air filter element of internal combustion engine, after system makes recycling air filter element of internal combustion engine move into heating-up zone by conveyor belt, the metal cap body of this recycling air filter element of internal combustion engine first end is made to contact the high-temperature portion of this heating-up zone, and come unstuck with the outer sleeve of recycling air filter element of internal combustion engine, with the metal cap body of this end of removal, after making recycling air filter element of internal combustion engine move into heating-up zone by conveyor belt again, the metal cap body of this recycling air filter element of internal combustion engine second end is made to contact the high-temperature portion of this heating-up zone, and come unstuck with the outer sleeve of recycling air filter element of internal combustion engine, with the metal cap body of this end of removal, again the filter core being arranged in outer sleeve is outwards ejected, and complete the dismounting of recycling air filter element of internal combustion engine, be separated and reclaim.

3, the patent No. is CN201220261956, name is called the utility model patent of " half wet type air filter core ", which disclose a kind of half wet type air filter core, internal layer rhombus net, outer rhombus net composition filter cylinder, filter cylinder adopts cylinder design, is provided with composite fiber between internal layer rhombus net, outer rhombus net, and composite fiber adopts wheel tooth-like formation, composite fiber is provided with aluminium flake joint strip at junction point and closes, composite fiber inner and outer surface parcel aluminium alloy screen net; Be provided with borehole structure in the middle part of upper end cap, lower end cap is provided with handle in the middle part of bottom surface; Aluminium alloy screen net, internal layer rhombus net, outer rhombus net adopt adhesive and upper end cap, lower end cap to be adhesively fixed respectively at two ends; Outer rhombus net outer surface parcel micro porous filtration sponge, micro porous filtration sponge is made up of perforate soft bubble sponge; Composite fiber, the spray coated oil strain of micro porous filtration sponge surface.

4, the patent No. is CN201310128631, name is called the utility model patent of " a kind of air filtering core dusting apparatus ", which disclose a kind of air filtering core dusting apparatus, comprise the air intake assembly, dedusting assembly and the discharge means that are connected successively by gas transmission pipeline, and be positioned at described air intake assembly, the top of dedusting assembly and discharge means and the barometer be connected with air intake assembly, dedusting assembly and discharge means respectively by gas detect pipeline.Air filtering core dusting apparatus described in the utility model, can overcome unreasonable structure in prior art, feature of environmental protection difference and use the defects such as inconvenient, reasonable with implementation structure, the feature of environmental protection good and advantage easy to use.

Although these patents above-mentioned all relate to airfiltering dedusting, it is also proposed the improvement that some are structural, but all fundamentally do not change airfiltering dedusting method, when all not proposing how to solve filter cleaner blocking, the problem that motor occurs tripping because lacking air, therefore still needs to be improved further.

Model utility content

The purpose of this utility model is to block for existing air-strainer the problem easily causing motor to trip, when proposition one can effectively prevent air-strainer from blocking, motor can because lacking the device of air tripping operation, this prevents motor tripgear can when air-strainer blocks, still keep air can continue to enter according to the needs of motor, ensure that motor can not trip because air lacks.

In order to reach this purpose, the utility model provides a kind of air filtering device of engine, comprise primary air filter, the side of primary air filter is provided with a set of auxiliary air filtration system, and auxiliary air filtrating equipment is in closed condition when primary air filter can effectively filter; Auxiliary air filtration system, when primary air filter core blocks cause interior outer pressure reduction≤1KPa because of dust, impurity, puts into operation, to ensure normal working of engine.

Further, described auxiliary air filtration system comprises a safety filter element and a bypass valve, bypass valve is arranged on the air inlet side of safety filter element, and bypass valve will be opened automatically when the air filter in-core external pressure difference≤1KPa of primary air filter, otherwise will be in closed condition.

Further, the described auxiliary air filtrating equipment that arranges on the side of primary air filter arranges an auxiliary air filtrating equipment at the entrance of primary air filter, the entrance of auxiliary air filtrating equipment is the same with the entrance of primary air filter accesses air simultaneously, but be provided with sub controlling unit at the entrance of auxiliary air filtrating equipment, sub controlling unit only has just to be opened when blocking appears in primary air filter, now outside air can enter auxiliary air filtrating equipment from the entrance of auxiliary air filtrating equipment, be motor air supply by the outlet of auxiliary air filtrating equipment again.

Further, described sub controlling unit is pressure sensitive device, pressure sensitive device controls according to the air filtering core inside and outside differential pressure of primary air filter, as the air filter in-core external pressure difference≤1KPa of primary air filter, pressure sensitive device will open the entrance of auxiliary air filtrating equipment, make outside air can enter auxiliary air filtrating equipment, for motor provides air, remain air filtering core inside and outside differential pressure <1KPa, ensure that motor runs well all the time.

Further, described sub controlling unit is automatic control break valve, and stop valve is controlled by automatic controller, automatically will open, otherwise will be in closed condition as the air filter in-core external pressure difference≤1KPa of primary air filter.

Further, described sub controlling unit is normally closed mechanical type control valve, by arranging normally closed mechanical type control valve at the intake section of auxiliary air filtrating equipment, and set normally closed mechanical type control valve and will automatically open when the air filter in-core external pressure difference≤1KPa of primary air filter, otherwise will closed condition be in, meet the needs of motor to air with this.

Further, described normally closed mechanical type control valve is spring normally closed cut-off valve, spring normally closed cut-off valve is arranged on the inlet channel of auxiliary air filtrating equipment, automatically will open, otherwise will be in closed condition as the air filter in-core external pressure difference≤1KPa of primary air filter.

Further, described sub controlling unit is automatically controlled or fluid-controlled cut-off valve, is controlled by circuit or hydraulic control circuit, automatically will open, otherwise will be in closed condition as the air filter in-core external pressure difference≤1KPa of primary air filter.

Further, described auxiliary air filtrating equipment is arranged in primary air filter, is inner-outer sleeve assembling structure with primary air filter, is enclosed within the primary air filter core of primary air filter in auxiliary air filtrating equipment; Sub controlling unit is arranged on the end plate of primary air filter core of primary air filter; During engine work, air flows through auxiliary air filtrating equipment safety filter element by primary air filter core provides clean air to engine aspirating system, when primary air filter core blocks cause interior outer pressure reduction≤1KPa because of dust, impurity, sub controlling unit is opened, air flows through safety filter element through sub controlling unit and provides air to engine aspirating system, ensures normal working of engine.

The utility model has the advantage of:

The utility model increases safety filter element and by-pass collar on the basis of original air cleaner cartridge, solves current engine power generation industry two large problems:

1, remain air filtering core inside and outside differential pressure <1KPa, ensure that motor runs well all the time;

Do not need to shut down when 2, cleaning, more renew cartridge.

The utility model has huge use value to the occasion that can not shut down easily that need operate continuously especially.

Accompanying drawing explanation

Fig. 1 is available engine air filtering core construction principle schematic;

Fig. 2 is system principle structural representation of the present utility model;

Fig. 3 is an example structure schematic diagram of the present utility model;

Fig. 4 is the filter cartridge construction schematic diagram of Fig. 3;

Fig. 5 is the safe by-pass collar structural representation of Fig. 3;

Fig. 6 is another example structure schematic diagram of the present utility model.

Embodiment

The utility model is set forth further below in conjunction with the drawings and specific embodiments.

Basic principle of the present utility model can be found out from accompanying drawing 2, a kind of air filtering device of engine, air filtering device of engine is provided with at the air inlet of motor 16, air filtering device of engine comprises primary air filter 17, the side of primary air filter 17 is provided with a set of auxiliary air filtration system 18, and auxiliary air filtration system 18 includes safety filter element 19 and safe by-pass collar 20; When primary air filter 17 blocks cause interior outer pressure reduction≤1KPa because of dust, impurity, auxiliary air filtration system 18 puts into operation, to ensure normal working of engine.

Embodiment one

Can be found out by accompanying drawing 2, the utility model relates to a kind of air filtering device of engine, comprise primary air filter, the side of primary air filter is provided with a set of auxiliary air filtration system, auxiliary air filtration system is when primary air filter core blocks cause interior outer pressure reduction≤1KPa because of dust, impurity, put into operation, to ensure normal working of engine.

Described air filtering device of engine is on the basis of original primary air filter core (see figure 1), add a set of auxiliary air filtration system (see figure 3), air filtering device of engine comprises a primary air filter core 1, is provided with an A-frame 2 at primary air filter core 1 inner face; Internal voids place just between primary air filter core 1 and A-frame 2 is provided with a safety filter element 3 and safe by-pass collar 4, is combined to form auxiliary air filtration system by safety filter element 3 and safe by-pass collar 4; Wherein, safety filter element 3(is shown in Fig. 4) be made up of lower end cap 5, binder 6, filter material 7, interior protecting wire net 8, upper end cap 9, seal ring 10; Wherein, lower end cap 5 is bonded together by the port of binder 6 with filter material 7, and interior protecting wire net 8 is enclosed within filter material 7 inner face, enters in motor for the protection of coarse granule; The pore size filter of filter material 7 is greater than the pore size filter of primary air filter core 1, for the thick level higher than primary air filter core 1 is filtered, is blocking at ordinary times to prevent safety filter element 3; Safety filter element 3 is sleeved in primary air filter core.

Safe by-pass collar 4(is shown in Fig. 5) be made up of seal ring 11, bypass base 12, spring bracket 13, spring pedestal 14, spring 15, rubber pad 16, be spring type safety stop valve,

Safe by-pass collar is arranged on the end plate of the primary air filter core 1 of safety filter element 3 inlet side, safe by-pass collar is while communicate with air, another side communicates with the air inlet of safety filter element 3, safe by-pass collar 4 will automatically be opened during outer pressure reduction≤1KPa in the primary air filter core 1 of primary air filter, otherwise will be in closed condition.Simultaneously at air filtering device of engine built with warning device, warning message will be provided to control room when there is the air filter in-core external pressure difference≤1KPa of primary air filter.

During engine work, air flows through safety filter element by air filtering core and provides clean air to engine aspirating system, when air filtering core blocks cause interior outer pressure reduction≤1KPa because of dust, impurity, safe by-pass collar is opened, air flows through safety filter element through bypass valve and provides air to engine aspirating system, ensure normal working of engine, cleaning in time simultaneously or replacing air filtering core.

Embodiment two

The structure of embodiment two is the same with the principle of embodiment one, as shown in Figure 6, a kind of air filtering device of engine, comprise primary air filter, the side of primary air filter is provided with a set of auxiliary air filtration system, auxiliary air filtration system, when primary air filter core 201 blocks cause interior outer pressure reduction≤1KPa because of dust, impurity, puts into operation, to ensure normal working of engine.

Described auxiliary air filtration system comprises a safety filter element 203 and a safe by-pass collar 204(is shown in Fig. 6), safe by-pass collar 204 is a bypass valve, be arranged on the air inlet side of safety filter element 203, and bypass valve will be opened automatically when the air filter in-core external pressure difference≤1KPa of primary air filter, otherwise closed condition will be in.

Be with the difference of embodiment one: described safety filter element 203 is arranged on outside primary air filter core 201, the side of primary air filter core 201 is arranged on primary air filter core 201 parallel way, safe by-pass collar 204 is an automatically controlled or hydraulic control bypass valve, is controlled according to measured air filtering core inside and outside differential pressure by control room; The entrance of bypass valve directly connects air, and the outlet of bypass valve is connected with the entrance of safety filter element 203, the air inlet of the outlet sending and receiving motivation 202 of safety filter element 203.Simultaneously at air filtering device of engine built with warning device 206, warning message will be provided to control room 205 when there is the air filter in-core external pressure difference≤1KPa of primary air filter.

Above-mentioned listed embodiment, just carries out clear, complete description to the technical solution of the utility model by reference to the accompanying drawings; Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.

The utility model has the advantage of:

The utility model increases safety filter element and by-pass collar on the basis of original air cleaner cartridge, when main cartridge occurs that the situation of blocking occurs, by shunting device and safety filter element to the air needed for motor supply, solve current engine power generation industry two large problems:

1, can, when blocking appears in main filtration core, motor be avoided to occur trip phenomenon because lacking air.

2, air filtering core inside and outside differential pressure <1KPa can be remained, ensure that motor runs well all the time;

3, do not need to shut down when cleaning, more renew cartridge.

The utility model has huge use value to the occasion that can not shut down easily that need operate continuously especially.

Claims (8)

1. an air filtering device of engine, is characterized in that: comprise primary air filter, and the side of primary air filter is provided with a set of auxiliary air filtration system, and auxiliary air filtrating equipment is in closed condition when primary air filter can effectively filter; Auxiliary air filtration system, when primary air filter core blocks cause interior outer pressure reduction≤1KPa because of dust, impurity, puts into operation, to ensure normal working of engine.

2. air filtering device of engine as claimed in claim 1, it is characterized in that: the described auxiliary air filtrating equipment that arranges on the side of primary air filter arranges an auxiliary air filtrating equipment at the entrance of primary air filter, the entrance of auxiliary air filtrating equipment is the same with the entrance of primary air filter accesses air simultaneously, but be provided with sub controlling unit at the entrance of auxiliary air filtrating equipment, sub controlling unit only has just to be opened when blocking appears in primary air filter, now outside air can enter auxiliary air filtrating equipment from the entrance of auxiliary air filtrating equipment, be motor air supply by the outlet of auxiliary air filtrating equipment again.

3. air filtering device of engine as claimed in claim 2, it is characterized in that: described sub controlling unit is pressure sensitive device, pressure sensitive device controls according to the air filtering core inside and outside differential pressure of primary air filter, as the air filter in-core external pressure difference≤1KPa of primary air filter, pressure sensitive device will open the entrance of auxiliary air filtrating equipment, make outside air can enter auxiliary air filtrating equipment, for motor provides air, remain air filtering core inside and outside differential pressure <1KPa, ensure that motor runs well all the time.

4. air filtering device of engine as claimed in claim 3, it is characterized in that: described sub controlling unit is automatic control break valve, stop valve is controlled by automatic controller, automatically will open as the air filter in-core external pressure difference≤1KPa of primary air filter, otherwise will closed condition be in.

5. air filtering device of engine as claimed in claim 4, it is characterized in that: described sub controlling unit is normally closed mechanical type control valve, by arranging normally closed mechanical type control valve at the intake section of auxiliary air filtrating equipment, and set normally closed mechanical type control valve and will automatically open when the air filter in-core external pressure difference≤1KPa of primary air filter, otherwise will closed condition be in, meet the needs of motor to air with this.

6. air filtering device of engine as claimed in claim 5, it is characterized in that: described normally closed mechanical type control valve is spring normally closed cut-off valve, spring normally closed cut-off valve is arranged on the inlet channel of auxiliary air filtrating equipment, automatically will open as the air filter in-core external pressure difference≤1KPa of primary air filter, otherwise will closed condition be in.

7. air filtering device of engine as claimed in claim 4, it is characterized in that: described sub controlling unit is automatically controlled or fluid-controlled cut-off valve, controlled by circuit or hydraulic control circuit, automatically will open as the air filter in-core external pressure difference≤1KPa of primary air filter, otherwise will closed condition be in.

8. air filtering device of engine as claimed in claim 2, it is characterized in that: described auxiliary air filtrating equipment is arranged in primary air filter, be inner-outer sleeve assembling structure with primary air filter, be enclosed within the primary air filter core of primary air filter in auxiliary air filtrating equipment; Sub controlling unit is arranged on the end plate of primary air filter core of primary air filter; During engine work, air flows through auxiliary air filtrating equipment safety filter element by primary air filter core provides clean air to engine aspirating system, when primary air filter core blocks cause interior outer pressure reduction≤1KPa because of dust, impurity, sub controlling unit is opened, air flows through safety filter element through sub controlling unit and provides air to engine aspirating system, ensures normal working of engine.