CN2697338Y

CN2697338Y - Air filter for diesel engine

Info

Publication number: CN2697338Y
Application number: CN 03265212
Authority: CN
Inventors: 孙永贸
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-10
Filing date: 2003-06-06
Publication date: 2005-05-04
Anticipated expiration: 2013-06-06

Abstract

The utility model discloses an air filter for diesel engine, comprising an air inlet pipe [1] and an air outlet pipe [2] which are fixed on an upper casing [3]. The inner part of the upper casing [3] is provided with an upper perforated plate [4]; the upper casing [3] is sealed and connected with a lower casing [7] by a sealing ring [6]. The inner part of the lower casing [7] is provided with a coarse filtering net [8] which is mounted inside a skeleton; a machine oil pool [9] is provided below the coarse filtering net [8]. The air filter for diesel engine is characterized in that the inner part of a chamber below the perforated plate [4] inside the upper casing [3] is provided with a fine filtering net [5]. The air filter for diesel engine has the advantages of that the air filter for diesel engine can completely replace various specifications of air filters with paper filter elements such as K1317 type spectrum air filters. When the metal filtering nets are blocked or partially blocked, the filtering nets can be detached conveniently and can be reused after being cleaned by very little diesel oil. The air filter for diesel engine is especially suitable to be used in the region where the wind and sand are strong and the repairing is inconvenient.

Description

A kind of diesel engine air filtration unit

Technical field the utility model belongs to combustion air cleaner, particularly the use for diesel engine air-strainer.

The air-strainer that uses on the present small diesel engine of background technique, it generally is filter core made of paper, the product of K1317 range of models particularly, its filter core made of paper, less very more effective than higher area use at dust storm with air quality, but if this kind air-strainer uses on the ground such as Xinjiang of China, because local airborne dust storm content is bigger, this filter cleaner very easily stops up, and causes the refill deformation failure, loses filtration and makes diesel engine cause fault thus.In order to overcome this abnormal phenomenon, guarantee that diesel engine under any circumstance can proper functioning, the design people has carried out conscientious experimental research, has proposed diesel engine air filtration unit of the present utility model.Being the purpose of this utility model, is to attempt to provide a kind of diesel engine air filtration unit

This diesel engine air filtration unit of summary of the invention, it has suction tude [1] and the steam outlet pipe [2] that is fixed on the upper shell [3], has up-hole plate [4] in the upper shell [3], upper shell [3] is tightly connected by seal ring [6] and lower shell body [7], in lower shell body [7], have and be installed in intraskeletal thick filtering net [8], be a machine oil pond [9] below the thick filtering net [8], it is characterized in that having fie screen [5] in the cavity below the orifice plate [4] in upper shell [3].Its advantage is to stop up or only part obstruction when metal screen, can remove easily, cleans and can recover with a spot of diesel oil.Can be in the normal use in the area of any weather condition.It is bigger to be particularly suitable for dust storm, and keeps in repair the inconvenient area again and use.

Appended drawings is a structural representation of the present utility model, and the meaning representation of sequence number in the accompanying drawings is: 1, suction tude, 2, steam outlet pipe, 3, upper shell, 4, up-hole plate, 5, fie screen, 6, seal ring, 7, lower shell body, 8, thick filtering net, 9, the machine oil pond, 10, orifice plate.

Embodiment is with reference to accompanying drawing, this kind diesel engine air filtration unit, it has suction tude [1] and the steam outlet pipe [2] that is fixed on the upper shell [3], has up-hole plate [4] in the upper shell [3], upper shell [3] is tightly connected by seal ring [6] and lower shell body [7], having in lower shell body [7] and be installed in intraskeletal thick filtering net [8], is a machine oil pond [9] below the thick filtering net [8], it is characterized in that having fie screen [5] in the cavity below the orifice plate [4] in upper shell [3].There is an orifice plate [10] inside in the machine oil pond [9] in lower shell body [7].Slightly, folded or dish dress, network, intersection are filled among the lower shell body fie screen with the metal silk quality filter mesh layer of the metal quality of present use basically.Can use lower shell body in the silk screen of plastics quality of oil resistant or the parcel filling in some occasion, form thick, the fie screen filter layer of filtered air.Because the intensity and the formed space of netted intersection of wire self make it be difficult for stopping up, even if local the obstruction arranged, the filtration that also can not cause the papery filter core to subside to cause was lost efficacy, the situation of the limit is that the thickness filter screen all stops up, and does not have air to enter, but this is impossible.General when burning quality descends, driver just can be found, in time filter screen be cleaned.

The using process summary is: when diesel engine uses, dust laden air enters into the oil sump [9] of lower shell body [7] bottom through suction tude [1], through arriving the fie screen [5] of the metal silk quality in the upper shell [3] through the orifice plate [10] of the inside of machine oil pond [9], the thick filtering net [8] of metal silk quality after the oil bath, through after the further filtration of fie screen, enter into diesel engines by steam outlet pipe [2] by up-hole plate [4].Like this, oil sump [9] plays the effect that the first order is filtered, and thick filtering net plays the effect that filter the second level, and fie screen plays the effect that the third level is filtered, and the air ratio that enters into diesel engines participation burning is clean.When oil mass in the oil sump [9] reduces, need in time to replenish or change engine oil more.Perhaps there are part thick filtering net or fie screen to stop up, this device can be opened from the position of the seal ring [6] of centre, pull down thick or fie screen, reinstall after cleaning with diesel oil or other cleaning solutions, promptly reusable.If run into the big occasion of special dust loading, when thick, fie screen runs into obstruction or local the obstruction, can copy above-mentioned way to handle.General normal use can be maintained normally with reference to the application maintenance standard of air-strainer and just can be satisfied various occasion use needs.

Claims

1, a kind of diesel engine air filtration unit, it has suction tude [1] and the steam outlet pipe [2] that is fixed on the upper shell [3], has up-hole plate [4] in the upper shell [3], upper shell [3] is tightly connected by seal ring [6] and lower shell body [7], in lower shell body [7], have and be installed in intraskeletal thick filtering net [8], be a machine oil pond [9] below the thick filtering net [8], it is characterized in that having fie screen [5] in the cavity below the orifice plate [4] in upper shell [3].

2,, it is characterized in that there is an orifice plate [10] inside in the machine oil pond [9] in the said lower shell body [7] according to the described diesel engine air filtration unit of claim 1.