CN210769097U

CN210769097U - Diesel filter assembly with electric fuel pump

Info

Publication number: CN210769097U
Application number: CN201921672165.8U
Authority: CN
Inventors: 李继
Original assignee: Ruian Keda Auto Parts Co ltd
Current assignee: Ruian Keda Auto Parts Co ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-06-16
Anticipated expiration: 2029-10-08

Abstract

The utility model relates to a diesel fuel filter assembly of electronic fuel pump of area, including aluminium seat and filter element group spare, be provided with the colating subassembly in the aluminium seat, aluminium seat one end is provided with the oil inlet, filter element group spare is including filter element casing and set up the filter core in filter element casing, filter element group spare bottom sets up the bypass valve, still including the adapter sleeve, adapter sleeve one end is connected the other end through second connection structure and filter element casing with aluminium seat through first connection structure, the adapter sleeve mid-mounting has electronic fuel pump, the adapter sleeve is equipped with the oil feed passageway that all communicates the setting with aluminium seat and filter core, filter element casing middle part is provided with filtered oil outlet pipe, filtered oil outlet pipe one end and bypass valve intercommunication other end and electronic fuel pump intercommunication, the one end that filtered oil outlet pipe is close to the bypass valve is provided with filtered oil inlet port, the adapter sleeve is equipped with, And a second oil outlet is arranged at a position close to the lower end of the electric fuel pump.

Description

Diesel filter assembly with electric fuel pump

Technical Field

The utility model relates to a diesel fuel filter field, concretely relates to diesel fuel filter assembly of electrified dynamic fuel pump.

Background

The diesel filter is used as an important component of an engine fuel system, and has the main function of separating harmful impurities, moisture and the like in fuel from the fuel, so that the fuel entering the interior of each part of the engine fuel system and a combustion chamber is cleaner, the normal work of an engine is protected, the abrasion is reduced, the blockage is avoided, the emission is improved, the service life of the engine is prolonged, and the like.

The diesel filter mainly comprises a filter base and a filter element assembly, wherein the filter base is connected with the filter element through threads, and the filter base and the filter element are combined together in an O-shaped ring sealing mode; the filter seat is provided with an oil outlet channel and an oil inlet channel, and the oil inlet channel and the oil outlet channel are independent and are not directly communicated with each other; the filter element assembly mainly comprises a filter tank shell and filter paper, wherein the filter paper is packaged in the filter tank shell, and the filter tank is isolated into a dirty side communicated with an oil inlet channel and a clean side communicated with an oil outlet channel. The filter paper is the most critical component of the filtering function of the diesel filter, and has the characteristics of oleophylic property, hydrophobic property and particulate matter isolation, namely fuel oil can easily pass through the filter paper in the filter element assembly, and particulate matter and water are mostly isolated on the dirty side of the filter element. Meanwhile, the filter paper soaked by the fuel oil is generally poor in air permeability and has a great blocking effect on air, namely, the air contained in the dirty side of the diesel filter is difficult to enter the clean side through the filter paper. When the filter is arranged at the negative pressure end of the fuel system (namely the filter is arranged between the fuel delivery pump and the fuel tank), air dissolved in fuel can be continuously separated out under the negative pressure environment, when the amount of air gathered at the dirty side is continuously increased, the corresponding fuel amount entering the dirty side is correspondingly reduced, the effective filtering area of the filter paper is correspondingly reduced, and the fuel entering the clean side through the filter paper is also correspondingly reduced.

In this case, when the engine is throttled up, the engine may be starved and even stalled.

Aiming at the problem that the engine power is reduced or the operation is flamed out due to the accumulation of air at the dirty side of the filter, the current measures are as follows: 1. the filter paper with better air permeability is adopted. The filter efficiency of the filter is reduced or the cost of the filter paper is increased (if the air permeability of the filter paper is increased under the condition of keeping the filter efficiency unchanged or slightly reduced, the cost is greatly increased by adopting higher-grade filter paper). 2. And an exhaust small hole is formed in the top cover of the filter element, the dirty side of the filter element is communicated with the clean side, the air gathered on the dirty side is exhausted to the clean side through the exhaust small hole, and meanwhile, the large air gathered on the dirty side is changed into small air acceptable by the fuel system through the exhaust small hole. The problem that the dirty side of the filter gathers gas can be effectively handled to a certain extent to this scheme, but the exhaust aperture is when exhausting, also can be with the fuel of dirty side to the clean side of discharging, leads to the fuel cleanliness that enters into engine fuel system to descend by a wide margin.

The application date of the diesel filter for preventing gas accumulation disclosed in the Chinese patent application No. CN201811173937.3 is 2018.10.09, the publication date is 2018.12.07, a filter base is adopted, the filter base is provided with an oil outlet channel and an oil inlet channel which are mutually independent, and the lower side of the filter base is provided with a filter element assembly screw port; and a filter element assembly comprising: canister housing and filter paper, the canister housing includes: the end cover is arranged at the port of the cylinder body to form a filtering space; the filter tank shell is in threaded connection with the filter element assembly screw through an end cover and is sealed through an O-shaped ring; the filter paper is packaged in the filter tank shell through an end cover of the filter tank shell, and a filtering space is isolated into a dirty side communicated with an oil inlet channel of the filter base and a clean side communicated with an oil outlet channel of the filter base; and the end cover is provided with a through hole for communicating the dirty side and the clean side of the filtering space, and an exhaust plug is arranged in the through hole.

Through set up the air release plug control air release plug mounting hole aperture and the bubble point value of air release plug in the filter seat, ensure effectively to pass through the air release plug with the big group of air of the dirty side of filter and become the acceptable tiny bubble of fuel oil system and enter into clean side, can also ensure simultaneously that the filtration efficiency of filter can not reduce by a wide margin, but this kind of structure is comparatively single, provides this structure promptly and can only solve the exhaust problem, and this kind of structure exhaust efficiency is low.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to solve the above-mentioned deficiencies of the prior art,

the diesel filter assembly with the electric fuel pump has the functions of quick exhaust and quick oil outlet.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a diesel filter assembly of electrified electronic fuel pump, including aluminium seat and filter element group spare, be provided with the colating subassembly in the aluminium seat, aluminium seat one end is provided with the oil inlet, filter element group spare is including filter element shell and set up the filter core in filter element shell, filter element group spare bottom sets up bypass valve, its characterized in that: still including the adapter sleeve, adapter sleeve one end is connected the other end through second connection structure and filter core casing through first connection structure and aluminium seat, the adapter sleeve mid-mounting has electronic fuel pump, the adapter sleeve is equipped with the oil feed passageway that all communicates the setting with aluminium seat and filter core, filter core casing middle part is provided with the filter oil and goes out oil pipe, and filter oil goes out oil pipe one end and bypass valve intercommunication other end and electronic fuel pump intercommunication, the one end that the filter oil goes out oil pipe and is close to the bypass valve is provided with the filter oil inlet port, the adapter sleeve is equipped with first oil-out, is equipped with the second oil-out near the position of electronic fuel pump lower extreme at the position that is close to.

By adopting the technical scheme, the traditional diesel filter can produce oil only when the filtered oil in the filter element overflows to the upper end of the filter element, so the oil production speed is slow, the air permeability of the filter paper of the filter element soaked by fuel oil is generally poor, and the traditional diesel filter has great barrier effect on air, namely, the air contained in the dirty side of the diesel filter is difficult to enter the clean side through the filter paper, so the air on the dirty side of the filter is difficult to discharge, the utility model adopts the structure that the connecting sleeve is arranged between the aluminum base of the diesel filter and the filter element assembly, one end of the connecting sleeve is connected with the aluminum base through the first connecting structure, the other end is connected with the filter element assembly through the second connecting structure, the electric fuel pump is arranged in the connecting sleeve, the filtered oil outlet pipe is arranged in the filter element assembly, the filtered oil inlet hole is arranged at one end of the outlet pipe close to the bypass valve, when the diesel oil passes through the oil inlet channel of, filtered filtration oil will get into through filtering in the oil inlet and filter oil play oil pipe, when electric fuel pump during operation, filtered diesel oil flows in being close to the first oil-out of electric fuel pump upper end setting from the adapter sleeve through electric fuel pump's effect, when electric fuel pump is out of work, filtered diesel oil then flows the fuel pump through the second oil-out that the adapter sleeve is close to electric fuel pump lower extreme setting, set up the oil pressure in the fuel pump not only can establish the engine fast and can also pump the air in the diesel oil filter through compact structure's connecting sleeve in the diesel oil filter, improve fuel feeding efficiency and guarantee the cleanness in the diesel oil filter, the bypass valve that sets up in filter element group portion bottom then is unanimous with prior art function, guarantee to make diesel oil can flow the filter through the bypass valve when the very dirty unable normal filtration diesel oil of filter core.

The diesel filter assembly with the electric fuel pump can be further provided with: the two ends of the connecting sleeve are both opened to form an oil inlet channel which is arranged in a penetrating way, an installation cavity which is perpendicular to the oil inlet channel is arranged on the outer wall of the connecting sleeve, the electric fuel pump is connected to the connecting sleeve through the installation cavity, the first connecting structure comprises a convex ring arranged on an aluminum seat, a first installation surface is arranged at one end, facing the aluminum seat, of the connecting sleeve, a plurality of connecting blocks are arranged at intervals in the circumferential direction of the first installation surface, the aluminum seat is installed on the first installation surface through the installation ring, the installation ring is connected with the connecting blocks through bolts, the second connecting structure comprises a second installation surface, facing one end of the filter element assembly, of the connecting sleeve, an outwards extending connecting part is arranged at the other end of the second installation surface, opposite to the connecting sleeve, the connecting part is arranged in parallel to the connecting sleeve, the filter element is connected to the inner periphery of the second mounting surface.

Adopt above-mentioned technical scheme, the aluminium seat passes through bolted connection in first installation face, and filter core casing compresses tightly in connecting portion periphery and one end and the counterbalance of second installation face through the clamp, and the filter core then is connected in second installation face internal week, certainly, for the sealed effect after guaranteeing to connect, be provided with the sealing washer on the bulge loop of adapter sleeve, guarantee aluminium seat and connecting seat and be connected the back and can not the oil leak, and similarly, also be provided with the sealing washer in filter core casing and adapter sleeve's second installation face department, prevent filter core casing department oil leak.

The diesel filter assembly with the electric fuel pump can be further provided with: the installation cavity periphery is provided with first connecting block and second connecting block, first connecting block one end is provided with first connecting hole, colating subassembly one end threaded connection is in first connecting hole, the second oil-out sets up in first connecting block and one end and first connecting hole intercommunication other end and adapter sleeve outside are linked together, first connecting block is provided with the strengthening rib of establishhing relatively towards the one end of installation cavity, the second connecting block is equipped with second screw thread through-hole in the corresponding position of first connecting hole, it goes out oil pipe through second screw thread through-hole threaded connection in the second connecting block to filter oil, second screw thread through-hole with filter oil and go out oil pipe intercommunication setting.

Adopt above-mentioned technical scheme, through first connecting block and the coarse filtration subassembly threaded connection that sets up in the installation cavity outside, set up the second connecting block at the other end that the installation cavity set up first connecting block relatively, set up second screw thread through-hole in the second connecting block, filter oil goes out oil pipe and sets up through threaded connection in second screw thread through-hole and with second screw thread through-hole intercommunication to make electronic fuel pump can pump the filter oil in the filter oil goes out oil pipe.

The utility model has the advantages that: the aluminum seat and the filter element are respectively connected through the connecting sleeve, the electric fuel pump arranged in the connecting sleeve improves the oil outlet efficiency of the filter, the oil pressure in an engine can be quickly established, the air in the filter element can be discharged, and the filter is compact in structure and more practical.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is an explosion structure diagram of the embodiment of the present invention.

Fig. 3 is a right side view of the embodiment of the present invention.

Fig. 4 is a schematic sectional view of the portion a-a of fig. 3.

Fig. 5 is a schematic perspective view of a connection sleeve according to an embodiment of the present invention 1.

Fig. 6 is a schematic perspective view 2 of a connection sleeve according to an embodiment of the present invention.

Fig. 7 is a schematic perspective view 3 of a connection sleeve according to an embodiment of the present invention.

Detailed Description

Referring to fig. 1-7: a diesel filter assembly with an electric fuel pump comprises an aluminum base 1 and a filter element assembly, wherein a rough filtering assembly 3 is arranged in the aluminum base 1, an oil inlet 11 is formed in one end of the aluminum base 1, an oil inlet nozzle 101 is installed at the position of the oil inlet, the filter element assembly comprises a filter element shell 2 and a filter element 4 arranged in the filter element shell 2, a bypass valve 5 is arranged at the bottom of the filter element assembly, the diesel filter assembly further comprises a connecting sleeve 6, one end of the connecting sleeve 6 is connected with the aluminum base 1 through a first connecting structure, the other end of the connecting sleeve 6 is connected with the filter element shell 2 through a second connecting structure, the electric fuel pump 7 is installed in the middle of the connecting sleeve 6, the connecting sleeve 6 is provided with an oil inlet channel 61 communicated with the aluminum base 1 and the filter element 4, a filtered oil outlet pipe 8 is arranged in the middle of the filter element shell 2, one end of the filtered oil outlet pipe, the connecting sleeve 6 is provided with a first oil outlet 62 at a position close to the upper end of the electric fuel pump 7, a second oil outlet 63 at a position close to the lower end of the electric fuel pump 7, two ends of the connecting sleeve 6 are opened to form an oil inlet channel 64 which is arranged in a penetrating way, the outer wall of the connecting sleeve is provided with an installation cavity 65 which is perpendicular to the oil inlet channel 64, the electric fuel pump 7 is connected with the connecting sleeve 6 through the installation cavity 65, the first connecting structure comprises a convex ring 12 arranged on an aluminum base 1, one end of the connecting sleeve 6, facing the aluminum base 1, is provided with a first installation surface 66, four connecting blocks 661 are circumferentially arranged on the first installation surface 66 at intervals, the aluminum base 1 is arranged on the first installation surface 66 through an installation ring 13, the installation ring 13 is connected with the connecting blocks 661 through bolts, the second connecting structure comprises a second installation surface 67 arranged at one end of the connecting sleeve 6, the connecting part 68 is arranged in parallel with the connecting sleeve 6, the filter element shell 2 is pressed on the periphery of the connecting part 68 through the hoop 21, one end of the filter element shell abuts against the second mounting surface 67, the filter element 4 is connected on the inner periphery of the second mounting surface 67, the periphery of the mounting cavity 65 is provided with a first connecting block 651 and a second connecting block 652, one end of the first connecting block 651 is provided with a first connecting hole 6511, the periphery of the first connecting hole 6511 is provided with external threads, one end of the coarse filter component 3 is connected with the periphery of the first connecting hole 6511 in a threaded manner, the second oil outlet 63 is arranged in the first connecting block 651, one end of the first connecting block 651 is communicated with the first connecting hole 6511, the other end of the first connecting block is communicated with the outside of the connecting sleeve 6, one end of the first connecting block 651, which faces the mounting cavity 65, is provided with a reinforcing rib 653 which is oppositely arranged, the, the second threaded through hole 6521 is provided in communication with the filtered oil outlet pipe 8.

Claims

1. The utility model provides a diesel filter assembly of electrified electronic fuel pump, including aluminium seat and filter element group spare, be provided with the colating subassembly in the aluminium seat, aluminium seat one end is provided with the oil inlet, filter element group spare is including filter element shell and set up the filter core in filter element shell, filter element group spare bottom sets up bypass valve, its characterized in that: still including the adapter sleeve, adapter sleeve one end is connected the other end through second connection structure and filter core casing through first connection structure and aluminium seat, the adapter sleeve mid-mounting has electronic fuel pump, the adapter sleeve is equipped with the oil feed passageway that all communicates the setting with aluminium seat and filter core, filter core casing middle part is provided with the filter oil and goes out oil pipe, and filter oil goes out oil pipe one end and bypass valve intercommunication other end and electronic fuel pump intercommunication, the one end that the filter oil goes out oil pipe and is close to the bypass valve is provided with the filter oil inlet port, the adapter sleeve is equipped with first oil-out, is equipped with the second oil-out near the position of electronic fuel pump lower extreme at the position that is close to.

2. The diesel filter assembly with electric fuel pump of claim 1, wherein: the two ends of the connecting sleeve are both opened to form an oil inlet channel which is arranged in a penetrating way, an installation cavity which is perpendicular to the oil inlet channel is arranged on the outer wall of the connecting sleeve, the electric fuel pump is connected to the connecting sleeve through the installation cavity, the first connecting structure comprises a convex ring arranged on an aluminum seat, a first installation surface is arranged at one end, facing the aluminum seat, of the connecting sleeve, a plurality of connecting blocks are arranged at intervals in the circumferential direction of the first installation surface, the aluminum seat is installed on the first installation surface through the installation ring, the installation ring is connected with the connecting blocks through bolts, the second connecting structure comprises a second installation surface, facing one end of the filter element assembly, of the connecting sleeve, an outwards extending connecting part is arranged at the other end of the second installation surface, opposite to the connecting sleeve, the connecting part is arranged in parallel to the connecting sleeve, the filter element is connected to the inner periphery of the second mounting surface.

3. The diesel filter assembly with electric fuel pump of claim 2, wherein: the installation cavity periphery is provided with first connecting block and second connecting block, first connecting block one end is provided with first connecting hole, colating subassembly one end threaded connection is in first connecting hole, the second oil-out sets up in first connecting block and one end and first connecting hole intercommunication other end and adapter sleeve outside are linked together, first connecting block is provided with the strengthening rib of establishhing relatively towards the one end of installation cavity, the second connecting block is equipped with second screw thread through-hole in the corresponding position of first connecting hole, it goes out oil pipe through second screw thread through-hole threaded connection in the second connecting block to filter oil, second screw thread through-hole with filter oil and go out oil pipe intercommunication setting.