CN102374083A

CN102374083A - Modularized fuel oil alarm coarse filter

Info

Publication number: CN102374083A
Application number: CN2011103813503A
Authority: CN
Inventors: 单梅梅
Original assignee: BENGBU JINWEI FILTERS Co Ltd
Current assignee: BENGBU JINWEI FILTERS Co Ltd
Priority date: 2011-11-26
Filing date: 2011-11-26
Publication date: 2012-03-14
Anticipated expiration: 2031-11-26
Also published as: CN102374083B

Abstract

The invention relates to a modularized fuel oil alarm coarse filter, which comprises a filter holder (1) provided with an oil inlet (11) and an oil outlet (12), a rotary fuel oil coarse filter (2), an oil inlet pipe joint (3), an oil outlet pipe joint (4) and a negative pressure alarm (5), wherein the rotary fuel oil coarse filter is arranged on the filter holder provided with the oil inlet and oil outlet; and the negative pressure alarm is arranged at the oil outlet end of the filter holder provided with the oil inlet and the oil outlet. The coarse filter disclosed by the invention has the advantages of small occupied space on an engine, convenience for installation and replacement, compact structure, connection reliability and capability of embodying the actual fuel oil pollution degree really so as to be replaced and maintained in time, thereby improving the reliability of an oil supply system and greatly reducing the maintenance cost of the engine.

Description

Modularization fuel oil warning strainer

Technical field

The present invention relates to a kind of engine fittings, particularly relate to a kind of modularization fuel oil warning strainer.

Background technique

At present; Along with the increasingly stringent of engine emission rules, to the also corresponding raising of accuracy of oil supply system, because domestic diesel quality itself is just poor with user cost; But also there is the difference on the region; Metropolitan oil product is better than the oil product of small and medium-sized cities, and the eastern city is better than the oil product of western city, if according to the maintenance period on our filter cleaner: for example 10000-12000 kilometers or 200-250 hours replacing filter cleaners have not just geared to actual circumstances; When an automobile poor fuel oil of oil product of annotating for a long time; The life-span of fuel filter possibly not reach replacing mileage or the replacement cycle that marks on our product; Filter cleaner so just having occurred has reached life-span end of a period resistance and has put; Also continue to use, thereby it is not smooth engine oil to occur phenomenon such as flame-out; When an automobile is annotated reasonable diesel oil, when reaching when changing mileage or replacement cycle, filter cleaner also do not reach life-span end of a period resistance point, just be replaced, will increase cost of upkeep like this.

Domestic have part motor user quality not high, to the function of motor, filter cleaner and use insufficient recognition, do not know that what situation appears in motor after, when need maintain filter cleaner.

It is thus clear that; The deficiency that the prior fuel oil filter cleaner exists is: service life state that can not the exact grasp filter cleaner; The Life cycle of actual fuel oil pollution degree of real embodiment and filter cleaner; Can accurately not point out the driver in time to change, be difficult to guarantee the oil supply system reliably working, greatly reduce the power character and the Economy of motor.

Summary of the invention

The purpose of this invention is to provide a kind of modularization fuel oil warning strainer; Service life state with accurate grasp filter cleaner; The Life cycle of actual fuel oil pollution degree of real embodiment and fuel filter prevents that fuel filter ends and in time do not change to working life, causes phenomenons such as engine oil is smooth, flame-out; Can also prevent that fuel filter is replaced to the life-span end of a period, greatly reduces cost of upkeep.

To achieve these goals; The invention provides a kind of modularization fuel oil warning strainer; It comprises filter block, rotation fitting type fuel preliminary filter, filler opening pipe joint, oil outlet pipe joint, the negative pressure alarm that has filler opening and oil outlet; Said rotation fitting type fuel preliminary filter is installed in the inipple position of the filter block that has filler opening and oil outlet, and the negative pressure alarm is installed in one of them the oil outlet end that has filler opening and oil outlet filter block.

Said negative pressure alarm comprises end cap, transparent outer cover, connecting thread base, and inside is provided with SR, location locking plate, location card, red indicateing arm, air bag, spring successively.

Working principle of the present invention is:

The filter block that will have filler opening and oil outlet is installed in the negative pressure end in the engine fuel oil system; When the filler opening of the filter block of the fuel oil that contains impurity and water through having filler opening and oil outlet gets into the rotation fitting type fuel preliminary filter; Impurity in the fuel oil is intercepted at the filter core outside of rotation fitting type fuel preliminary filter; Will cause the negative pressure end resistance of whole oil-fired system to strengthen through long time integration; When resistance increased to setting value, the negative pressure alarm that is connected the filter block oil outlet end will send red maintenance signal, prompting driver maintenance.

Use structure of the present invention, through the integrated negative pressure alarm that is provided with on fuel preliminary filter, real embodiment the fuel oil pollution degree; Accurately grasped the service life state of filter cleaner, this modularization fuel oil warning strainer taking up room on motor is little, compact structure; Connect reliable; Through changing timely, maintaining, improved the oil supply system reliability, also greatly reduce the cost of upkeep of motor simultaneously.

Description of drawings

Fig. 1 is the assembly structure schematic representation of embodiment of the present invention.

Fig. 2 is the plan view of Fig. 1.

Embodiment

To combine accompanying drawing that mode of execution of the present invention is specifically described below:

Referring to Fig. 1, Fig. 2, it comprises filter block 1, rotation fitting type fuel preliminary filter 2, filler opening pipe joint 3, oil outlet pipe joint 4, negative pressure alarm 5 compositions that have filler opening and oil outlet this modularization fuel oil warning strainer.

Said filter block 1 comprises two filler openings 11, two oil outlets 12 and inipples 13; Filler opening pipe joint 3 is installed in an end of the filler opening 11 of the filter block 1 that has filler opening and oil outlet, and oil outlet pipe joint 4 is installed in an end of the oil outlet 12 of the filter block 1 that has filler opening and oil outlet.

As shown in Figure 1, said rotation fitting type fuel preliminary filter 2 is installed on the inipple 13 of the filter block 1 that has filler opening and oil outlet, and it comprises seal ring 21, thread plate sub-assembly 22, filter element part 23, draining member 24.

As shown in Figure 2; Said negative pressure alarm 5 is installed in the other end of the oil outlet 12 of the filter block 1 that has filler opening and oil outlet; It comprises end cap 51, transparent outer cover 56, connecting thread base 59, and inside is provided with SR 52, location card 53, location locking plate 54, red indicateing arm 55, air bag 57, spring 58 successively.

The working procedure of this modularization fuel oil warning strainer is:

The filter block 1 that this modularization fuel oil warning strainer is had filler opening and oil outlet is installed in the negative pressure end in the engine fuel oil system; The oil circuit trend is shown in Fig. 1 arrow; When the filler opening of the filter block 1 of the fuel oil that contains impurity and water through having filler opening and oil outlet gets into the outside of filter core 23 in rotation fitting type fuel preliminary filter 2 inner cores; After passing filter core 23, when being flowed out by the center oil outlet, the impurity in the fuel oil is intercepted at the outside of filter core 23; Time has been grown the negative pressure end resistance that will cause whole oil-fired system and has strengthened; When resistance increase to certain setting value as: during 40kPa (under certain working environment, the oil product condition), be connected the negative pressure alarm 5 of filter block oil outlet end will exhibit red the maintenance signal, prompting driver maintenance.

The working procedure of negative pressure alarm 5 is:

When engine operation; There is negative pressure air bag 57 inboards of negative pressure alarm, along with resistance in the filter cleaner using process constantly raises, cause air bag 57 inboard negative pressure to increase gradually; Location card 53 can overcome spring 58 under suction function support force drives red indicateing arm 55 and moves up; When engine stop working, 5 pressure can return to the state of beginning in the negative pressure alarm, and location card 53 drives red indicateing arm 55 and gets back to initial position again.But when resistance increases to certain degree (resistance the when filter cleaner that we set maintains); Hangnail on the location card 53 will exceed the wedge angle position of locating locking plate 54 at this moment; Location card 53 can not return under the effect of location locking plate 54; This moment we can to see that through transparent shell 56 red maintenance indicateing arm 55 is parked in this position motionless, show that filter cleaner reaches its working life, must change and maintain.After we change filter cleaner; Press SR 52; Wedge on the SR 52 outwards struts expansion to location locking plate 54, makes the angle of location locking plate 54 leave the hangnail on the location card 53, and the red indicateing arm 55 of location card 53 drives this moment moves downward return under the effect of spring 58.

Above-described only is preferred implementation of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the principle of the invention, can also make the some structures of filter block and strainer and the change of mounting type, these also should be regarded as belonging to protection scope of the present invention.

Claims

1. modularization fuel oil warning strainer; Comprise the filter block (1), rotation fitting type fuel preliminary filter (2), filler opening pipe joint (3) and the oil outlet pipe joint (4) that have filler opening and oil outlet; Rotation fitting type fuel preliminary filter (2) is installed on the filter block (1) that has filler opening and oil outlet; Filler opening pipe joint (3) is installed in filler opening (11) one ends of the filter block (1) that has filler opening and oil outlet; Oil outlet pipe joint (4) is installed in oil outlet (12) one ends of the filter block (1) that has filler opening and oil outlet, it is characterized in that: the other end at the oil outlet (12) of the filter block that has filler opening and oil outlet (1) is provided with negative pressure alarm (5).

2. modularization fuel oil warning strainer according to claim 1; It is characterized in that: said negative pressure alarm (5) comprises end cap (51), transparent outer cover (56), connecting thread base (59), and inside is provided with SR (52), location card (53), location locking plate (54), red indicateing arm (55), air bag (57), spring (58) successively.