CN1120631A

CN1120631A - Two-stage spirally-arranged seat for diesel cleaner

Info

Publication number: CN1120631A
Application number: CN 94113804
Authority: CN
Inventors: 欧玉福
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-14
Filing date: 1994-11-14
Publication date: 1996-04-17

Abstract

The rotary installing seat for double-class diesel oil filter is composed of master flow limiter at its top, collecting cavity connected to lower end of master flow limiter, 4 pipelines and their limiters, the pipeline over external cavity of class-one filter and its pressure limit valve, and artificial exhaust pipeline over oil collecting pipe of class-two filter and its exhaust screw, and features that the air in filter may be automatically exhausted for full use of active area of filter material.

Description

Installing base for two-stage diesel oil filter

The present invention relates to the upper body device, particularly installing base for two-stage diesel oil filter of diesel-oil filter.

Diesel-oil filter is mounted in the device that plays the effect of filtering diesel oil between oil pump of diesel motor and the transformation oil pump.Present diesel-oil filter structurally adopts single-stage filtrating type and double filtration formula, with the twin-stage diesel-oil filter is example, its structure is divided into two-part up and down, top claims the filter cleaner seat or claims strainer cover, the bottom claims the filter cleaner jar, the filter cleaner jar is mainly by I level and II level filter housing, I level and II level filtering tube, I level and II level filter core, I level and II level oil collecting pipe are formed, the filtering tube is positioned at the filtering jar, filtering tube skin is that filter core is a filtering material, oil collecting pipe takes out from the top of filtering tube, the exocoel that is called filter cleaner between filter housing and the filter core, filtering tube inside is called inner chamber; The filter cleaner seat is mainly by the outer inflow pipeline that communicates with I level filter cleaner exocoel, that draw and II level filter cleaner inflow pipeline that communicate with II level filter cleaner exocoel, the flowline of drawing from II level filter cleaner oil collecting pipe upper end are formed from I level filter cleaner oil collecting pipe upper end.The pressure of fuel oil by oil transfer pump is exocoel from the filter core skin that the outer inflow pipeline of I level filter cleaner flows to I level filter cleaner earlier, after core material is filtered after filtration, flow to the filtering tube, after getting oil from I level oil collecting pipe upper end again, flow into the filter core skin of II level filter cleaner from the inflow pipeline of II level filter cleaner, equally after filtering, flow to II level filtering tube, get the oil back from II level filter cleaner oil collecting pipe top and flow out, enter transformation oil transfer pump low pressure oil pocket from oil outlet tube.Existing double filtration device stand structure is simple, it is except that having an artificial bleed screw on oil collecting pipe, exocoel does not all have artificial means of deflation in filter core, thus filter cleaner in air can't discharge automatically, effective utilization area of filtering material is reduced to more than 60%.

The object of the present invention is to provide a kind of installing base for two-stage diesel oil filter, this rotary mounting base can increase effective utilization area of filtering material, the air in the filter cleaner can be discharged automatically, and the fuel oil in the filter cleaner is fully burnt, and reduces blowdown flow rate.

The present invention includes the outer inflow pipeline that communicates with I level filter cleaner exocoel, from draw and the II level filter cleaner inflow pipeline that communicate with II level filter cleaner exocoel in I level filter cleaner oil collecting pipe upper end, flowline from draw II level filter cleaner oil collecting pipe upper end is characterized in that: also comprise the oil return muffler that is positioned at filter cleaner seat upper end, the total restrictor that joins with oil return muffler lower end, what communicate with total restrictor lower end gathers the chamber, in I level filter cleaner, in exocoel and the II level filter cleaner, 4 pipelines through gathering that the chamber communicates with total restrictor lower end and 4 restrictors in the pipeline thereof are drawn in exocoel top, I level filter cleaner exocoel upper end is drawn out to the pipeline on filter cleaner seat top and is positioned at the pressure-limit valve of pipeline upper end, the artificial gas exhaust piping of II level filter cleaner oil collecting pipe upper end and be arranged in the artificial exhaust bolt of pipeline upper end and the magnetic sheet of two oil collecting pipes.Before filter cleaner work, at first air is discharged through the artificial exhaust duct and the exhaust bolt of II level filter cleaner oil collecting pipe top, then artificial exhaust bolt is fixed.After the filter cleaner work, in the filter cleaner residual air from 4 exhaust ducts through 4 restrictors, gather the chamber, total restrictor enters fuel tank through the oil return muffler, by the exhaust port of fuel tank air is discharged automatically; In the work when the low pressure oil circuit has fault, when air enters in the filter cleaner in any one-level exocoel through the low pressure oil circuit, all can be through exhaust duct and restrictor exhausting air, guarantee the normal fuel injection of motor, effective utilization area of filtering material is fully used, and makes diesel oil when flowing through two oil collecting pipes, cutting is arranged in the permanent magnet magnetic line of force of oil collecting pipe, the variation of fuel oil generation physical property and chemical property like this makes diesel oil sufficient combustion during work done in cylinder, reduces blowdown flow rate.

The present invention is described in more detail below in conjunction with drawings and Examples.

Accompanying drawing is a structure sectional view of the present invention.

Referring to accompanying drawing, present embodiment is by the oil return muffler 1 that is positioned at filter cleaner seat top, total restrictor 2, pressure-limit valve 3, I level filter cleaner exocoel exhaust duct 4 and be positioned at the restrictor 5 of pipeline, I level filter cleaner inner chamber exhaust duct 6 and be positioned at the restrictor 7 of its pipeline, II level filter cleaner exocoel exhaust duct 8 and be positioned at ducted restrictor 9, II level filter cleaner inner chamber exhaust duct 10 and be positioned at it and be positioned at ducted restrictor 11, the artificial exhaust bolt 12 in the oil outlet tube, the pipeline 14 that pressure-limit valve 3 lower ends communicate to I level filter cleaner exocoel upper end, gather chamber 15, magnetic sheet 17 in magnetic sheet 16 in the I level filter cleaner oil collecting pipe and the II level filter cleaner oil collecting pipe is formed.

The upper end connected tank of oil return muffler 1, its lower end communicates with upper end, pressure-limit valve 3 upper ends of total restrictor 2, pressure-limit valve 3 lower ends with communicate from I level filter cleaner exocoel upper end, artificial exhaust bolt 12 communicates with oil outlet tube, I, the inside and outside chamber of II level filter

cleaner exhaust duct

4,6,8,10 and

ducted restrictor

5,7,9,11 communicate with total restrictor 2 lower ends through gathering chamber 15, and

magnetic sheet

16,17 is adorned respectively and is set in I, the II level oil collecting pipe.

After twin-stage rotatable filter seat and filter cleaner jar are installed, before the filter cleaner work, unclamp bleed screw 12 air in the filter cleaner is discharged, fixedly exhaust bolt 12, and still remaining in the inside and outside chamber of filter cleaner I, II level at this moment have an air in certain amount.After filter cleaner work, air pocket in the inside and outside chamber of filter cleaner I, II level can be drained into through

exhaust duct

4,6,8,10 and ducted

restrictor

5,7,9,11 by the pressure of oil transfer pump and to gather chamber 15, enter fuel tank through total restrictor 2, oil return muffler 1 again, air is discharged through fuel tank.In filter cleaner work, when the low pressure oil circuit has fault, when air enters in the filter cleaner any chamber through the low pressure oil circuit, all can guarantee the normal fuel injection of motor through automatic discharge, effective utilization area of filtering material is fully used.When filter cleaner makes I level filter cleaner exocoel increased pressure to certain limit owing to a variety of causes, pressure-limit valve 3 is opened, unnecessary fuel oil is discharged through pressure-limit valve 3, return tube 1 from pipeline 14, enter fuel tank, and when fuel oil was flowed through oil collecting pipe, cutting was set in the magnetic line of force of the

magnetic sheet

16,17 on the oil collecting pipe, makes the variation of fuel oil generation physics and chemical property, diesel oil sufficient combustion during work done in cylinder reduces blowdown flow rate like this.

Also draw transport pipe 13 outside in I level filter cleaner exocoel upper end, its effect is when the low pressure oil circuit breaks down, and can guarantee the motor proper functioning by external transport pipe with outer oil delivering device fuel feeding, also can play scavenging action simultaneously.

The present invention compared with prior art has following advantage:

1. owing to inner chamber and exocoel at cleaner have increased discharge duct and current limiter, make The air that must enter in the cleaner can be discharged automatically, guarantees effective use face of material for core Long-pending this 100%.

2. owing in the oil collecting pipe of two-stage cleaner, be added with magnetic sheet, make diesel oil in cylinder Sufficient combustion during work done has reduced blowdown flow rate.

Claims

1. installing base for two-stage diesel oil filter, comprise the outer inflow pipeline that communicates with I level filter cleaner exocoel, from draw and the II level filter cleaner inflow pipeline that communicate with II level filter cleaner exocoel in I level filter cleaner oil collecting pipe upper end, flowline from draw II level filter cleaner oil collecting pipe upper end is characterized in that: also comprise the oil return muffler that is positioned at filter cleaner seat upper end, the total restrictor that joins with oil return muffler lower end, what communicate with total restrictor lower end gathers the chamber, in I level filter cleaner, in exocoel and the II level filter cleaner, 4 pipelines through gathering that the chamber communicates with total restrictor lower end and 4 restrictors in the pipeline thereof are drawn in exocoel top, I level filter cleaner exocoel upper end is drawn out to the pipeline on filter cleaner seat top and is positioned at the pressure-limit valve of pipeline upper end, the artificial gas exhaust piping of II level filter cleaner oil collecting pipe upper end and be arranged in the artificial exhaust bolt of pipeline upper end and the magnetic sheet of two oil collecting pipes.

2. filter cleaner rotary mounting base according to claim 1 is characterized in that: the exocoel upper end at I level filter cleaner is connected to an external transport pipe to filter cleaner seat top.