CN2695661Y

CN2695661Y - Combined air filter

Info

Publication number: CN2695661Y
Application number: CN 03209506
Authority: CN
Inventors: 郝进才
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-12
Filing date: 2003-09-12
Publication date: 2005-04-27
Anticipated expiration: 2013-09-12

Abstract

The utility model relates to a combined air filter, relating to air filtering equipment. The combined air filter comprises an upper shell, a coarse filter, a lower shell, a wet type filter element, a dry type filter element, an air inlet pipe, an air outlet pipe, etc. The air inlet pipe and the air outlet pipe are welded to the upper shell, and the inner cavity of the upper shell is provided with the dry type filter element. The wet type filter element is arranged in the lower shell, the outer end of the air inlet pipe is connected with the coarse filter, and a sealing ring is arranged at a connecting part between the upper shell and the lower shell. The upper part of the wet type filter element is provided with an oil blocking tray, a spring seat and the dry type filter element, and the spring uses the pressure generated by the spring seat to complete sealing. The combined air filter integrates the advantages of the existing air filters, making up the disadvantages of the existing air filters. The combined air filter has the advantages of small air-in resistance, high filtering efficiency, long service life, lower oil loss, etc. The combined air filter is suitable for matching with internal-combustion engines having various types in different working environments.

Description

The convolution air-strainer

Technical field

The utility model relates to a kind of convolution air-strainer, belongs to air filtering equipment.

Background technique

At present, the used air-strainer of internal-combustion engine is divided into three kinds: 1, dry-type air cleaner usually; 2, oil bath wet-type cleaner; 3, the patent No. is 98200096.0 dried wetting in conjunction with air-strainer.They in use have following characteristics: 1, the dry-type air cleaner filtering is effective, but filter core stops up easily; 2, oil bath wet-type cleaner is fit to high dirt environment, but it is too many to lose oil, and greasy filth and broken filter screen enter cylinder easily; 3, dried wetting in conjunction with air-strainer though eliminated the shortcoming of dry type and oil bath wet-type cleaner, brought into play their advantage, and its inner dust deposit is more very fast, needs often cleaning.

Summary of the invention

The utility model provides a kind of convolution air-strainer at the problems referred to above, its objective is to use to do when wetting combining structure assurance filtering effect, and reduces the deposition of dust in air-strainer inside, thereby extend working time.

The purpose of this utility model is to realize like this, the convolution air-strainer, it comprises upper casing, strainer, lower casing, the wet type filter core, dry type filter element, suction tude, parts such as steam outlet pipe, its suction tude, steam outlet pipe welds mutually with upper casing, suction tude is arranged on the center of upper casing, the lower end is connected with the center hole of wet type filter core, outlet pipe communicates with the upper space of the filter core positioning plate of upper casing, inner chamber at upper casing is installed dry type filter element, the wet type filter core is installed in the inside of lower casing, the suction tude outer end is connected to strainer, junction at upper casing and lower casing is provided with seal ring, it is characterized in that, the big mouth of suit oil baffle disc up successively on the suction tude at wet type filter core center, spring and seat, rubber pad, by spring and seat oil baffle disc is produced pressure and compress with the wet type filter core and be connected, the dry type filter element that rubber pad is produced pressure and upper casing inner chamber compresses and is connected simultaneously.

Filter core positioning plate above dry type filter element, location and installation are in upper casing inside, and its center hole and suction tude leave certain space.

Owing to adopted such scheme, it is effective that the convolution air-strainer has filtering, can be fit to various working environments, and dust is few in the filter cleaner inside deposition, and it has remedied the deficiencies in the prior art.

Description of drawings

Accompanying drawing is a sectional view of the present utility model.

Among the figure: 1 strainer, 2 upper casings, 3 dry type filter elements, 4 oil baffle discs, 5 wet type filter cores, 6 lower casings, 7 rubber pads, 8 springs and seat, 9 suction tude, 10 seal rings, 11 connecting bolts, 12 oil bath rings, 13 steam outlet pipes, 14 suction ports, 15 dust exhaust ports, 16 machine oil, 17 filter core positioning plates.

Embodiment

Referring to accompanying drawing: in conjunction with air-strainer is by upper casing 2, strainer 1, lower casing 6, wet type filter core 5, dry type filter element 3, suction tude 9, steam outlet pipe 13 grades are partly formed, suction tude 9 is inserted and is welded on the center of upper casing 2, two ends respectively grow 2 one sections height of upper casing, the upper end is connected with strainer 1, the center hole of wet type filter core 5 can be inserted in the lower end, top at strainer 1, be provided with dust exhausting hole 15, the bottom is provided with tangential admission mouth 14, the top tack welding of upper casing 2 inner chambers is equipped with filter core positioning plate 17, behind dry type filter element 3 adhesive rubber pads 7, the inner chamber of the upper casing 2 of packing into makes the rubber pad 7 of dry type filter element 3 link to each other with filter core positioning plate 17; Be welded with steam outlet pipe 13 in the side on upper casing top, the endoporus of steam outlet pipe 13 and upper casing 2 communicate with filter core positioning plate 17 formed spaces, oil bath ring 12 has been welded in the bottom of lower casing 6, add organic oil 16, wet type filter core 5 is equipped with on the inner chamber top of lower casing 6, the oil baffle disc 4 that makes progress of the big mouth of suit successively on the suction tude 9 of wet type filter core 5 center holes, be convenient to oil return like this, spring and seat 8 produce elastic compression rubber pad 7 so that seal, produce pressure by spring and the 8 pairs of shelves food trays of seat 4 and compress with wet type filter core 5 and be connected, the dry type filter element 3 that rubber pad 7 is produced pressure and upper casing 2 inner chambers compresses and is connected simultaneously.The elastic force of spring and seat 8 had both been stablized the joint of oil baffle disc 4 and wet type filter core 5, had sealed the joint sealing of dry type filter element 3 and filter core positioning plate 17 again.

Filter core positioning plate 17 tack weldings of upper casing 2 inner chambers are contained in the inside of upper casing 2, and its center hole and suction tude 9 leave certain space, are air enters steam outlet pipe after filtering passages.

Lower casing 6 is connected with upper casing 2 usefulness bolts 11, is provided with seal ring 10 in the edge that engages, and can guarantee 6 liang of shell sealings of upper casing 2 and lower casing.

Air enters strainer from tangential suction port 14 during work; form swirling eddy; big grain dust in the air under action of centrifugal force; discharge through dust exhaust port 15; other air is entered by suction tude 9; and the machine oil 16 of impact lower casing 6 bottoms; after under the effect of oil bath ring 12, finishing oil bath; the filtration of the wet type filter core 5 of air through containing organic oil; wherein most dust is filtered off; at this moment can contain a small amount of tiny oil droplet in the air; passing wet type filter core 5 airborne tiny oil droplets through the adhesion of oil baffle disc 4 just attached to below the big mouth oil baffle disc 4 up; gather and will flow back into wet type filter core 5 the insides for a long time, oil baffle disc 4 has played and has prevented the effect of scurrying on the machine oil, removes air behind the oil droplet again through the filtration of dry type filter element 3; very clean; it enters steam outlet pipe 13 by the inner chamber of dry type filter element 3 through the space of filter core positioning plate 17 and suction tude 9, by steam outlet pipe 13 IC engine supplies, thereby has played the effect of filtering air.

Claims

1. convolution air-strainer, it comprises upper casing, strainer, lower casing, the wet type filter core, dry type filter element, suction tude, parts such as steam outlet pipe, its suction tude, steam outlet pipe welds mutually with upper casing, suction tude is arranged on the center of upper casing, the lower end is connected with the center hole of wet type filter core, outlet pipe communicates with the upper space of the filter core positioning plate of upper casing, inner chamber at upper casing is installed dry type filter element, the wet type filter core is installed in the inside of lower casing, the suction tude outer end is connected to strainer, junction at upper casing and lower casing is provided with seal ring, it is characterized in that, the big mouth of suit oil baffle disc up successively on the suction tude at wet type filter core center, spring and seat, rubber pad produces pressure by spring and seat to oil baffle disc and compresses with the wet type filter core and be connected, and the dry type filter element that rubber pad is produced pressure and upper casing inner chamber compresses and is connected simultaneously.

2. convolution air-strainer according to claim 1 is characterized in that, is in the filter core positioning plate of dry type filter element top, and location and installation is in upper casing inside, and its center hole and suction tude leave certain space.