CN115419534A - Isolation sealing type fuel filter - Google Patents
Isolation sealing type fuel filter Download PDFInfo
- Publication number
- CN115419534A CN115419534A CN202211225025.2A CN202211225025A CN115419534A CN 115419534 A CN115419534 A CN 115419534A CN 202211225025 A CN202211225025 A CN 202211225025A CN 115419534 A CN115419534 A CN 115419534A
- Authority
- CN
- China
- Prior art keywords
- oil
- end cover
- filter
- filter element
- fuel filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- F02M37/32—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
- F02M37/34—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 by the filter structure, e.g. honeycomb, mesh or fibrous
Abstract
The invention discloses an isolated sealed fuel filter applied to an automobile engine, which comprises a shell, an installation cover and a filter element assembly, wherein the filter element assembly consists of an upper end cover, a lower end cover, a central tube and filter paper, a guide tube is arranged in the central tube and at the joint of an oil outlet of the central tube, a sealing groove is arranged between the oil outlet of the upper end cover and the top of the guide tube, and a sealing ring is arranged in the sealing groove. The outer edge of the upper end cover is provided with a boss matched with the inner circle of the shell. The invention can ensure smooth oil supply in the whole life cycle of the filter, ensure the complete isolation of dirty oil and clean oil sides, and ensure the positioning and the guide in the assembly process of the filter element assembly. Thereby ensuring the normal operation of the fuel oil filtering system of the engine.
Description
Technical Field
The invention relates to an engine filtering system, in particular to a fuel filter.
Background
At present, a fuel filter for an engine generally comprises a shell, an installation cover, a filter element assembly and the like, wherein the filter element assembly comprises an upper end cover, a lower end cover, a central pipe and filter paper, and the upper end cover and the central pipe are not enough in matching tightness, so that fuel which is not fully filtered slightly seeps; when air is accumulated in the working process of the filter, an oil-free area is generated at the upper part of the filter, so that oil is supplied to the filter slowly and smoothly in a certain period of time, and the fuel oil filtering effect is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the technology and provide the isolation sealing type fuel filter which has good sealing performance and smooth oil supply.
The purpose of the invention is realized by the following technical scheme: keep apart sealed fuel filter, including shell, installation lid, filter element group spare, this filter element group spare comprises upper end cover, bottom end cover, center tube, filter paper the honeycomb duct is equipped with in the center tube and at its oil-out butt joint department, be equipped with the seal groove between the oil-out of upper end cover and the top of honeycomb duct, be equipped with the sealing washer in this seal groove.
The outer edge of the upper end cover is provided with a boss matched with the inner circle of the shell. And a plurality of bevel edge type oil inlets are formed in the boss.
After the structure of the invention is adopted, the oil outlet pipe can be extended to the bottom of the clean oil side of the central pipe through the flow guide pipe, and clean diesel oil is directly pumped out from an oil-free area, so that the oil supply of the filter is smooth in the whole life cycle; a sealing ring is arranged in the sealing groove to realize radial sealing with the outer circle of the oil outlet pipe, so that the dirty oil and the clean oil are completely isolated; the outer edge of the upper end cover is provided with a boss matched with the inner diameter of the shell, and the positioning and the guide in the assembly process of the filter element assembly can be ensured through the matching of the outer circle of the boss and the inner circle of the shell. Thereby ensuring the normal operation of the fuel oil filtering system of the engine.
Drawings
The invention is described in further detail below with reference to the figures and embodiments.
FIG. 1 is a schematic structural view of an isolation seal type fuel filter of the invention.
Fig. 2 is a left side view of fig. 1 (with the mounting cover removed).
Detailed Description
Referring to fig. 1, the invention is applied to the fuel filter of the isolated seal type of the automobile engine, including the outer casing 1, mounting cap 14, filter element assembly, this filter element assembly is made up of upper end cap 2, lower end cap 3, central tube 4, filter paper 5, equipped with the honeycomb duct 8 in the said central tube 4, and in its oil outlet butt joint place, there is seal groove 6 (can be set up on the oil outlet position of the upper end cap) between oil outlet 9 of the said upper end cap 2 (butt joint with oil outlet pipe) and top of the honeycomb duct 8, is equipped with the seal ring 7 in this seal groove 6 (the top of the honeycomb duct 8 is adjacent to seal ring 6). The bottom of the shell 1 is provided with a protective sleeve 10 and a water drain valve assembly 11 for draining filtered bottom water. The mounting cover 14 is mounted above the upper end cover 2 and is in butt joint with the upper end cover 2 and the shell 1, and the mounting cover 14 is provided with a plurality of oil inlet holes 15.
As shown in fig. 1 and fig. 2, the outer edge of the upper end cover 2 is provided with a boss 12 matched with the inner circle of the housing 1, and the positioning and the guiding in the assembly process of the filter element assembly can be ensured by matching the outer circle of the boss 12 with the inner circle of the housing 1; the boss 12 (on the longitudinal surface thereof) is provided with a plurality of bevel edge type oil inlets 13, and the plurality of bevel edge type oil inlets 13 can form a rotational flow type oil inlet channel so as to generate a certain centrifugal force to perform rotational flow type oil throwing treatment (as shown by an arrow in fig. 2) on large particle impurities in fuel oil (diesel oil) entering through an oil inlet hole 15 on the mounting cover 14 to complete coarse filtration, and then fall to the position of filter paper of the filter element assembly to perform fine filtration.
As shown in the attached drawing, when the air is accumulated to cause the upper part of the central tube of the filter element assembly to generate an oil-free area in the working process of the filter, the oil outlet tube can be extended to the bottom of the clean oil side of the central tube of the filter element assembly through the flow guide tube 8 to avoid the oil-free area and directly pump clean fuel oil (diesel oil), so that the oil supply of the filter in the whole life cycle is smooth; radial sealing with the excircle of an oil outlet pipe is realized through the matching of the sealing groove 6 and the sealing ring 7, and the complete isolation of dirty oil and clean oil sides of the filter is ensured.
Claims (3)
1. Keep apart sealed fuel filter, including shell, installation lid, filter element group spare, this filter element group spare comprises upper end cover, bottom end cover, center tube, filter paper, its characterized in that: and a flow guide pipe is arranged in the central pipe and at the joint of the oil outlets of the central pipe, a sealing groove is arranged between the oil outlet of the upper end cover and the top of the flow guide pipe, and a sealing ring is arranged in the sealing groove.
2. An isolation seal fuel filter as claimed in claim 1 wherein: the outer edge of the upper end cover is provided with a boss matched with the inner circle of the shell.
3. An isolation seal fuel filter as claimed in claim 2 wherein: and a plurality of bevel edge type oil inlets are formed in the boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211225025.2A CN115419534A (en) | 2022-09-25 | 2022-09-25 | Isolation sealing type fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211225025.2A CN115419534A (en) | 2022-09-25 | 2022-09-25 | Isolation sealing type fuel filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115419534A true CN115419534A (en) | 2022-12-02 |
Family
ID=84205862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211225025.2A Pending CN115419534A (en) | 2022-09-25 | 2022-09-25 | Isolation sealing type fuel filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115419534A (en) |
-
2022
- 2022-09-25 CN CN202211225025.2A patent/CN115419534A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230717 Address after: 325204 Zone B, North Industrial Park, Tangxia Town, Rui'an City, Wenzhou City, Zhejiang Province Applicant after: ZHEJIANG UNIVERSE FILTER Co. Address before: 325204 District B of Tangxia Town North Industrial Park, Ruian City, Wenzhou City, Zhejiang Province (Zhejiang Universal Filter Co., Ltd.) Applicant before: Liu Wanbin |