CN2074371U

CN2074371U - Combined air filter element

Info

Publication number: CN2074371U
Application number: CN 90217264
Authority: CN
Inventors: 宁有海; 朱锡志
Original assignee: GONGZHULING CITY AUTOMOBILE FI
Current assignee: GONGZHULING CITY AUTOMOBILE FI
Priority date: 1990-07-31
Filing date: 1990-07-31
Publication date: 1991-04-03

Abstract

The utility model relates to an air filter element of an air filter, which is used for air filtering of an automobile engine. An external filter screen which is made of chemical fiber filtering materials is arranged at the periphery of a paper filter element to prevent dust and sand in large particles from puncturing the filter paper, and high filter rate and ability of anti-tempering burning of the paper filter element can be retained. The utility model overcomes the defects of an original paper element and an original chemical fiber filter element, and combined the advantages of the original paper element and the original chemical fiber filter element. The utility model has the advantages of high efficiency, strong penetration-resistant ability, tempering prevention, uneasy burning, convenient operation and maintenance, durability, etc.

Description

Combined air filter element

The utility model is to belong to car engine air admittance filtered air filter cleaner air filtering core.

Air-strainer before the utility model all is to adopt the single filter core that material is made, i.e. papery filter core or chemical fibre filter core of planting.Papery filter core cost is low, and filtering ability is preferably arranged, and anti-tempering scaling loss ability is strong, but has cracky, easily polluted, easily punctured by the dust of larger particles by crankcase oil gas and lose shortcoming such as effectiveness.Though the chemical fibre filter core overcome the papery filter core easily puncture, easily by the shortcoming of breakage, simultaneously brought the tempering that produces in big, the easy launched machine work of resistance to burn again to burn, shortcoming such as easy cleaning, cost height not.

The purpose of this utility model be for provide a kind of breakdown characteristics by force, not cracky, filtering efficiency height, anti-tempering scaling loss ability is strong, application maintenance is easy, the life-span is long and cost is not high again combined type air filtering core.

The utility model mainly is made up of upper end cap (1), filter core (2), outer filter (3) and lower end cap (7) as shown in the figure, and filter core (2) adopts the papery filter core, and available chemical fibre filtrate of outer filter (3) or nonwovens, scouring pad are made.The two ends up and down of papery filter core (2) are separately fixed on the upper end cap (1) and lower end cap (7) of ring-type; to constitute an annular cavity; outer filter (3) places the annular chamber outside, with dust and the sand grains that stops larger particles, plays the effect of coarse filtration and protection papery filter core.

Most preferred embodiment of the present utility model as shown in the figure, constitute by upper end cap (1), papery filter core (2), outer filter (3), band (4), central network (5), external network (6) and lower end cap (7), papery filter core (2) adopts air filtration paper to make bellows-shaped, its upper and lower end face is bonded in respectively on the annular upper end cap made from sheet iron (1) and lower end cap (7), to form the annular chamber of a hollow.The inside and outside both sides of corrugated papery filter core (2) are equipped with central network (5) and the external network made from the iron net (6), and it is welded on upper and lower end covers and make it to form one.Can strengthen whole soundness, can protect papery filter core (2) again, make it not fragile.The outside of external network (6) is equipped with the outer filter made from the chemical fibre filtrate (3), and the upper and lower end face of outer filter (3) is bonded in respectively up and down on end cap (1), (7).Outer filter (3) selects for use the chemical fibre scouring pad to make.The outside of outer filter (3) is equipped with the band (4) of reinforcing filter core.

Combined filter element of the present utility model is owing to insert the chemical fibre filter screen at the skin of papery filter core, so the dust of larger particles and sand grains etc. can be blocked, played the effect of protecting refill, makes it to lose effectiveness to prevent to puncture filter core.But the papery filter core of internal layer is the thinner dust of filtering then, to keep higher filtering efficiency, has the ability of higher anti-tempering scaling loss simultaneously again.The utility model has had both the strong point of papery filter core and chemical fibre filter core, has overcome both deficiencies again, has filtering efficiency height, strong, the anti-tempering of breakdown characteristics and is difficult for advantages such as scaling loss, application maintenance be easy, durable.Under the prerequisite of guaranteeing vehicle dynamic quality, Economy, can improve the working life and the using effect of motor greatly., road conditions difference area big in particular for dust storm solve the fast problem of engine scuffing, and effective means are provided.

Claims

1, a kind of air-strainer is made up of upper end cap (1), papery filter core (2) and lower end cap (7) with air filtering core, the two ends up and down of papery filter core (2) are separately fixed on the upper end cap (1) and lower end cap (7) of ring-type, the looping chamber is characterized in that the outside of papery filter core (2) is equipped with outer filter (3).

2, air filtering core according to claim 1 is characterized in that outer filter (3) adopts chemical fibre filtrate or nonwovens, scouring pad to make.