CN110836155A - Large-traffic fuel secondary filter assembly - Google Patents
Large-traffic fuel secondary filter assembly Download PDFInfo
- Publication number
- CN110836155A CN110836155A CN201911327530.6A CN201911327530A CN110836155A CN 110836155 A CN110836155 A CN 110836155A CN 201911327530 A CN201911327530 A CN 201911327530A CN 110836155 A CN110836155 A CN 110836155A
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- Prior art keywords
- oil
- hole
- oil inlet
- channel
- filter
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/54—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by air purging means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
Abstract
A high-flow fuel fine filter assembly comprises a filter base sub-assembly and two fuel fine filter elements, wherein the filter base sub-assembly comprises a filter base body, the front part of the lower side of the filter base body is provided with a threaded hole, an annular groove cavity is arranged around the threaded hole, an oil outlet channel and an oil inlet channel are arranged in the filter base body, the rear side of the oil inlet channel is provided with an oil return channel, the upper side of the threaded hole is communicated with the oil outlet channel, a through hole for communicating the annular groove cavity with the oil inlet channel is arranged in the annular groove cavity, the upper side of the filter base body is, the oil outlet is communicated with the oil outlet channel, the oil inlet is communicated with the oil inlet channel, the oil return hole is communicated with the oil return channel, the oil return hole is connected with an air release screw, the two fuel fine filter elements are respectively and rotatably arranged on the two threaded holes, the oil outlet of the fuel fine filter element is opposite to the threaded holes, and the oil inlet of the fuel fine filter element is opposite to the annular groove cavity. The filter assembly has the characteristic of large flow and also has the function of exhausting.
Description
Technical Field
The invention relates to a high-flow fuel fine filter assembly.
Background
At present, the discharge standard of a non-road diesel engine is improved from the state III to the state IV, so that compared with the discharge requirement of the non-road state III, the discharge standard of an assembled fuel filter also puts forward higher requirements on the strengthening of functions such as service life extension, reliability, convenience and the like besides improving the impurity filtering efficiency and dust holding capacity, the injection pressure of an electric control fuel system can generally reach 140 plus 180Mpa, if the high and stable oil pressure is required, enough oil supply quantity must be required to ensure, when the pressure is increased, the temperature of fuel oil can be increased rapidly, the higher temperature can cause the reduction of the lubricating performance of the fuel oil (the lubrication of a nozzle and a pump is mainly lubricated by diesel oil), and therefore, the flow of the fuel oil needs to be increased for cooling. The gas mixed in the diesel oil is considerable when the vehicle runs, the engine runs at high speed, because the flow of the fuel oil pump is very large, when oil flow rapidly passes through the filter, impurities in the oil are intercepted by the high-precision composite filter material, part of tiny air bubbles flow into the filter element along with the oil, tiny bubbles slowly gather into big bubbles in the filter element, big bubble bodies are brought into the engine to be combusted along with the fuel oil, and the phenomenon that the diesel oil can not be burnt can occur, so that the research of a two-stage fuel oil fine filter assembly capable of exhausting gas with large flow is considered to be necessary.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-flow fuel fine filter assembly which has the characteristic of high flow and has an exhaust function.
In order to solve the technical problem, the invention provides a high-flow fuel fine filter assembly which comprises a filter base sub-assembly and two fuel fine filter elements, wherein the filter base sub-assembly comprises a filter base body, two threaded holes which are bilaterally symmetrical and vertically arranged are formed in the front part of the lower side of the filter base body, an annular groove cavity which is arranged around the threaded holes is formed in the position, corresponding to each threaded hole, of the front part of the lower side of the filter base body, the lower side of the annular groove cavity is open, an oil outlet channel and an oil inlet channel which are arranged at intervals in the front and back and are in the left-right direction are formed in the filter base body, an oil return channel which is the same as the oil inlet channel and extends backwards is formed in the position, corresponding to the rear side of the oil inlet channel, the upper side of each threaded hole is communicated with the oil outlet channel, a through hole which is communicated with the annular groove cavity and the oil inlet channel is, The oil outlet is communicated with the oil outlet channel, the lower side of the oil outlet is communicated with the oil inlet channel, the lower side of the oil return hole is communicated with the rear part of the oil return channel, the oil return hole is screwed with an air bleed screw, the threaded part of the air bleed screw is of a hollow tubular structure, the circumferential side wall of the air bleed screw is provided with an exhaust small hole communicated with the inside and the outside of the air bleed screw, two fuel fine filter cores are respectively screwed on two threaded holes, the oil outlet in the middle of each fuel fine filter core is opposite to the threaded hole, and the oil inlet arranged around the oil outlet on each fuel fine filter core is opposite to the annular groove cavity.
For the sake of simplicity, the mass flow fuel fine filter assembly of the present invention is referred to as the present filter assembly hereinafter.
The use method of the filter assembly comprises the following steps: through an oil pump and a corresponding pipeline, fuel enters an oil inlet channel from an oil inlet hole, then respectively flows into two annular groove cavities from the oil inlet channel, the fuel in the annular groove cavities flows into a filter element from an oil inlet of a filter element of a fuel fine filter, the filtered clean fuel flows into a threaded hole from an oil outlet, then enters an oil outlet channel, and finally is discharged out of the filter from an oil outlet hole.
This filter assembly's advantage: the filter adopts a double-filter-element design, so that the filter meets the requirement of large flow, and the filter seat subassembly of the filter is provided with an oil return channel and an air-bleed screw, so that the filter can play a role of exhausting, thereby meeting the requirement of a modern electronic control fuel system.
In order to achieve better using effect of the filter assembly, the preferable scheme is as follows:
preferably, the filter base body is provided with at least one connecting hole which is communicated with the inside and the outside of the oil inlet channel and corresponds to the oil inlet channel.
A temperature sensor can be arranged at the connecting hole to play a role in monitoring the temperature of the fuel.
Drawings
FIG. 1 is a front view of the present filter assembly.
Fig. 2 is a perspective view of the present filter assembly.
Fig. 3 is a top view of the present filter assembly.
Fig. 4 is a cross-sectional view a-a of fig. 3 (the bleeder screw not shown).
Fig. 5 is a sectional view B-B of fig. 3.
Detailed Description
Referring to fig. 1-5, a high flow fuel fine filter assembly comprises a filter base subassembly 1 and two fuel fine filter elements 2, wherein the filter base subassembly 1 comprises a filter base body 11, two threaded holes 3 which are bilaterally symmetrical and vertically arranged are arranged at the front part of the lower side of the filter base body 11, an annular groove cavity 4 which is arranged around the threaded hole 3 is arranged at the position corresponding to each threaded hole 3 at the front part of the lower side of the filter base body 11, the lower side of the annular groove cavity 4 is open, an oil outlet channel 5 and an oil inlet channel 6 which are arranged at intervals in the front and back and are in the left and right directions are arranged in the filter base body 11, an oil return channel 7 which is the same as the oil inlet channel 6 and extends backwards is arranged at the back side corresponding to the oil inlet channel 6 at the inner position of the filter base body 11 (in the embodiment, the oil inlet channel 6, the oil outlet channel 5 and the oil return channel 7 are all formed by blind hole processing, the upper side of each threaded hole 3 is communicated with an oil outlet channel 5, a through hole 41 communicated with the annular groove cavity 4 and an oil inlet channel 6 is arranged in each annular groove cavity 4, the middle part of the upper side of the filter base body 11 along the left-right direction is provided with an oil outlet hole 51, an oil inlet hole 61 and an oil return hole 71 which are arranged at intervals in the front-back direction and are all in the vertical direction, the lower side of the oil outlet hole 51 is communicated with the oil outlet channel 5, the lower side of the oil inlet hole 61 is communicated with the oil inlet channel 6, the lower side of the oil return hole 71 is communicated with the rear part of the oil return channel 7, an air release screw 12 is screwed on the oil return hole 71, the thread part of the air release screw 12 is in a hollow tubular structure, the circumferential side wall of the air release screw 12 is provided with an air exhaust small hole 121 communicated with the inside and the outside of the air release screw, an oil inlet 21 arranged on each fuel fine filter element 2 around an oil outlet 22 is opposite to the annular groove cavity 4. The left side and the right side of the filter base body 11 corresponding to the oil inlet passage 6 are respectively provided with a connecting hole 61 for communicating the inside and the outside of the oil inlet passage 6, wherein the connecting hole 61 on the left side is open, and the connecting hole 61 on the right side is provided with an inner hexagonal plug.
The use method of the filter assembly comprises the following steps: through an oil pump and a corresponding pipeline, fuel enters the oil inlet channel 6 from the oil inlet hole 61, then respectively flows into the two annular groove cavities 4 from the oil inlet channel 6, the fuel in the annular groove cavities 4 flows into the filter element 2 from the oil inlet 21 of the filter element 2 of the fine fuel filter, the filtered clean fuel flows into the threaded hole 3 from the oil outlet 22, then enters the oil outlet channel 5, and finally is discharged out of the filter from the oil outlet hole 51, impurities in the fuel are intercepted outside the filter element 2, part of tiny air bubbles flow into the filter element 2 along with the fuel, tiny bubbles are gradually gathered into big bubbles in the filter element 2, the big bubbles flow through the oil return channel 7 along with the fuel, and are discharged to an oil tank from the small exhaust holes 121 of the air discharge screw 12.
This filter assembly's advantage: the filter adopts the design of the double filter elements 2, so that the filter meets the requirement of large flow, and the filter seat subassembly 1 of the filter is provided with the oil return channel 7 and the air bleed screw 12 to play the role of exhausting, thereby meeting the requirement of the modern electronic control fuel system.
A temperature sensor can be arranged at the connecting hole 61 to play a role in monitoring the temperature of the fuel.
Claims (2)
1. A large-traffic fuel fine filter assembly which characterized in that: the filter base subassembly comprises a filter base body, two threaded holes which are bilaterally symmetrical and vertically arranged are arranged at the front part of the lower side of the filter base body, an annular groove cavity which is arranged around the threaded holes is arranged at the position corresponding to each threaded hole at the front part of the lower side of the filter base body, the lower side of the annular groove cavity is open, an oil outlet channel and an oil inlet channel which are arranged at intervals in the front and back direction and are in the left and right direction are arranged in the filter base body, an oil return channel which is the same as the oil inlet channel and extends backwards is arranged at the rear side corresponding to the oil inlet channel at the position in the filter base body, the upper side of each threaded hole is communicated with the oil outlet channel, a through hole which is communicated with the annular groove cavity and the oil inlet channel is arranged in each annular groove cavity, an oil outlet hole, an oil inlet hole and an oil return hole which are arranged at intervals in the front and back direction, the lower side of the oil inlet hole is communicated with the oil inlet channel, the lower side of the oil return hole is communicated with the rear part of the oil return channel, the oil return hole is screwed with an air release screw, the threaded part of the air release screw is of a hollow tubular structure, the circumferential side wall of the air release screw is provided with an exhaust small hole communicated with the inside and the outside of the air release screw, the two fuel fine filter cores are respectively screwed on the two threaded holes, the oil outlet in the middle of each fuel fine filter core is opposite to the threaded hole, and the oil inlet arranged around the oil outlet on each fuel fine filter core is opposite to the annular.
2. A high flow fuel fine filter assembly as claimed in claim 1, wherein: the filter base body is provided with at least one connecting hole which is communicated with the inside and the outside of the oil inlet channel and corresponds to the oil inlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911327530.6A CN110836155A (en) | 2019-12-20 | 2019-12-20 | Large-traffic fuel secondary filter assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911327530.6A CN110836155A (en) | 2019-12-20 | 2019-12-20 | Large-traffic fuel secondary filter assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110836155A true CN110836155A (en) | 2020-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911327530.6A Pending CN110836155A (en) | 2019-12-20 | 2019-12-20 | Large-traffic fuel secondary filter assembly |
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| CN (1) | CN110836155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087101A (en) * | 2021-11-13 | 2022-02-25 | 安徽江淮汽车集团股份有限公司 | Diesel filter assembly |
-
2019
- 2019-12-20 CN CN201911327530.6A patent/CN110836155A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087101A (en) * | 2021-11-13 | 2022-02-25 | 安徽江淮汽车集团股份有限公司 | Diesel filter assembly |
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