CN107882668B - Fuel filter seat - Google Patents
Fuel filter seat Download PDFInfo
- Publication number
- CN107882668B CN107882668B CN201711466588.XA CN201711466588A CN107882668B CN 107882668 B CN107882668 B CN 107882668B CN 201711466588 A CN201711466588 A CN 201711466588A CN 107882668 B CN107882668 B CN 107882668B
- Authority
- CN
- China
- Prior art keywords
- handle
- cap
- fuel filter
- diaphragm
- fuel
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 47
- 210000004907 gland Anatomy 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 57
- 239000000295 fuel oil Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F02M37/04—Feeding by means of driven pumps
- F02M37/16—Feeding by means of driven pumps characterised by provision of personally-, e.g. manually-, operated pumps
-
- 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
- F02M37/44—Filters structurally associated with pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Abstract
The invention belongs to the technical field of engines, and discloses a fuel filter seat. The fuel filter seat comprises a seat body and a manual oil pump arranged on the seat body, wherein the manual oil pump comprises a handle, a gland and a diaphragm, and the handle is arranged on the outer side of the manual oil pump; the gland comprises a cover head and a cover plate connected with the cover head, and the cover plate is fixed on the seat body; the diaphragm is connected with the handle and is arranged in the cover plate; when the handle is in a first position relative to the cover head, the handle can slide up and down relative to the cover head; in the second position, the handle is axially locked relative to the cap. According to the invention, the groove capable of locking the handle is formed in the gland of the manual oil pump, so that the handle locks the diaphragm in a normal working state of the engine, and the diaphragm cannot act autonomously, thereby solving the problem that the diaphragm of the conventional diaphragm pump is easy to fatigue and damage.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a fuel filter seat.
Background
The fuel filter seat is applied to an automobile fuel system and is mainly used for connecting a fuel filter element. When the new filter element is replaced by most fuel filter seats at present, a large amount of gas is accumulated in the whole filter, and if the gas is not discharged out of the filter, the gas enters a fuel pipeline and an engine ignition system, so that the engine cannot be started normally.
Currently, in the use process of an engine, the failure rate of a fuel filter of a manual oil pump (namely a diaphragm pump and also called a diaphragm pump) with a diaphragm is high. When the engine works, the fuel pressure fluctuates, so that the diaphragm can automatically act, the movement frequency is high, and fatigue damage is easily caused by long-time repeated action of the diaphragm, so that the use of the diaphragm pump is affected.
Accordingly, there is a need for a new fuel filter base that addresses the above-described issues.
Disclosure of Invention
The invention aims to provide a fuel filter seat so as to solve the problem that the diaphragm of the traditional diaphragm pump is easy to fatigue and damage.
To achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a fuel filter seat, includes the pedestal and locates the manual oil pump on the pedestal, its characterized in that, manual oil pump includes:
the handle is arranged at the outer side of the manual oil pump;
the gland comprises a cover head and a cover plate connected with the cover head, and the cover plate is fixed on the seat body;
the diaphragm is connected with the handle and is arranged in the cover plate;
when the handle is in a first position relative to the cover head, the handle can slide up and down relative to the cover head; in the second position, the handle is axially locked relative to the cap.
Preferably, the handle comprises:
the cap is provided with a bulge in the cap, and the cap head is arranged in the cap in a sliding way;
the hollow column is provided with a cavity therein, is positioned inside the cap and is integrally formed with the cap.
Preferably, the membrane is hinged to the cavity of the hollow column by means of a ball head.
Preferably, the cap is provided with a chute along which the protrusions slide up and down.
Preferably, the top of the chute is transversely extended with a groove, and the protrusion can be abutted inside the groove.
Preferably, a slideway is connected between the groove and the chute.
Preferably, the outer part of the hollow column is sleeved with a spring, and the spring is arranged between the cap and the cover plate.
Preferably, an oil inlet and an oil outlet are arranged in the base body, and an oil passage formed from the oil inlet to the oil outlet is provided with an oil inlet one-way valve, an oil outlet one-way valve and a main one-way valve.
Preferably, a pump cavity through which fuel flows is arranged below the diaphragm, and the pump cavity is communicated with the oil inlet one-way valve and the oil outlet one-way valve.
Preferably, the manual oil pump is arranged on one side through which the filtered fuel flows.
The invention has the beneficial effects that:
according to the invention, the groove capable of locking the handle is formed in the gland of the manual oil pump, so that the diaphragm does not act autonomously in the normal working state of the engine, and the problem that the diaphragm of the conventional diaphragm pump is easy to fatigue and damage is solved; the diaphragm is hinged with the ball head of the hollow column, so that when the handle and the diaphragm are not in the same straight line, the stretching can be realized, and meanwhile, the radial force generated by the fact that the handle and the diaphragm are not in the same straight line can be compensated; the bulge arranged on the inner wall of the cap can slide up and down along the chute arranged on the cap head, so that the rigid stretching of the handle to the membrane is avoided; the manual oil pump is arranged on one side through which the filtered fuel flows, so that the problem that the check valve plate is blocked due to the fact that impurities in the fuel are detained on the check valve of the manual oil pump is solved.
Drawings
FIG. 1 is a schematic cross-sectional view of a fuel filter base provided by the present invention;
FIG. 2 is a schematic view of the gland of FIG. 1;
fig. 3 is a schematic view of the handle of fig. 1.
In the figure:
1. a base; 2. a handle; 3. a gland; 4. a membrane;
21. a cap; 22. a hollow column; 211. a protrusion;
31. a cover head; 32. a cover plate; 311. a chute; 312. a groove; 313. a slideway;
51. an oil inlet one-way valve; 52. an oil outlet one-way valve; 53. a master check valve;
61. an oil inlet; 62 oil outlets; 63. a central oil passage; 64. a pump chamber.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, the fuel filter seat provided by the invention comprises a seat body 1 and a manual oil pump arranged on the seat body 1, wherein the manual oil pump comprises a handle 2, a gland 3 and a diaphragm 4, and the manual oil pump comprises the following components:
the handle 2 is arranged at the outer side of the manual oil pump, the handle 2 is hinged with the diaphragm 4 through the ball head, so that when the handle 2 and the diaphragm 4 are not in the same straight line, the stretching can be realized, and meanwhile, the radial force generated by the fact that the handle 2 and the diaphragm 4 are not in the same straight line can be compensated. The diaphragm 4 is arranged in the cover plate 3, the gland 3 is fixed on the base 1 through bolts or screws, and the handle 2 and the diaphragm 4 are jointly installed on the base 1 through the gland 3. A spring is connected between the gland 3 and the handle 2, so that the handle 2 can automatically reset after being pressed, and meanwhile, the rigid stretching of the handle 2 to the membrane 4 is avoided, so that the service life of the membrane 4 is prolonged.
Specifically, an oil inlet 61 and an oil outlet 62 are arranged in the base body 1, and an oil passage formed by the oil inlet 61 to the oil outlet 62 is provided with an oil inlet check valve 51, an oil outlet check valve 52 and a main check valve 53. Copper sleeves (not shown in the figure) are arranged at the ports of the oil inlet 61 and the oil outlet 62 of the base body 1 so as to ensure that the oil inlet 61 and the oil outlet 62 have higher connection strength. A pump cavity 64 for fuel to flow through is arranged below the diaphragm 4, and the pump cavity 64 is communicated with the oil inlet check valve 51 and the oil outlet check valve 52. The main check valve 53 is fixed to a center connection shaft (not shown) having the other end communicating with a fuel filter (not shown), and a center oil passage 63 is provided in the center connection shaft. When the manual oil pump works, fuel oil sequentially passes through the oil inlet 61, the fuel oil filter and the central oil duct 63, then enters the pump cavity 64 through the oil inlet one-way valve 51, presses the handle 2, and enters the oil outlet 62 from the pump cavity 64 through the oil outlet one-way valve 52. When the manual oil pump is not in operation and the engine is in normal operation, fuel passes through the oil inlet 61, the fuel filter and the central oil passage 63 in sequence, and then enters the oil outlet 62 through the main check valve 53.
Specifically, because the viscosity of the fuel oil pumped from the fuel supply pump is higher at low temperature, in order to meet the requirement of nozzle atomization, the fuel oil needs to be heated, an intelligent temperature control component (not shown in the figure) is further arranged on the base body 1, and the temperature control switch is adopted to judge the ambient temperature to send out a switch command, so that the heating start temperature and the heating end temperature can be preset to ensure that the viscosity of the fuel oil meets the requirement of nozzle atomization. Specifically, the manual oil pump is arranged on one side (namely, the clean side) of the fuel filter, through which the fuel flows, so that the problem of clamping stagnation of the check valve plate caused by retention of impurities in the fuel on the check valve (namely, the oil inlet check valve 51 and the oil outlet check valve (52)) of the manual oil pump is solved.
As shown in fig. 2, the gland 3 includes a cap 31 and a cover plate 32 integrally formed with the cap 31, the cap 31 is provided with a chute 311, a groove 312 transversely extends from the top of the chute 311, a slide 313 is connected between the groove 312 and the chute 311, and the vertical height of the slide 313 is lower than the vertical height of the upper end surface of the cap 31. When the handle 2 is at the first position (i.e. the position of the chute 311) relative to the cap 31, the handle 2 can slide up and down relative to the cap 31; in the second position (i.e. where the recess 312 is), the handle 2 is axially locked relative to the head 31.
As shown in fig. 3, the handle 2 comprises a cap 21 and a hollow column 22, wherein a protrusion 211 is arranged in the cap 21, a cavity is arranged in the hollow column 22, the hollow column 22 and the cap 21 are integrally formed, and the membrane 4 is hinged with the cavity of the hollow column 22 through a ball head.
When the manual oil pump works, the cover head 31 is slidably arranged in the cap 21 through the bulge 211 and the chute 311, so that the handle 2 can slide up and down along the chute 311 relative to the gland 3, and further, the diaphragm 4 moves up and down to generate pressure change on the pump cavity 64. When the diaphragm 4 moves upwards, the pump cavity 64 is at negative pressure relative to the external pressure, and at the moment, fuel oil enters the pump cavity 64 through the oil inlet one-way valve 51; when the diaphragm 4 moves downward, the pump chamber 64 receives pressure from the diaphragm 4, and fuel flows into the fuel outlet 62 through the pump chamber 64 via the fuel outlet check valve 52.
When the manual oil pump does not work and the engine works normally, in order to avoid the autonomous action of the diaphragm, a limit structure capable of locking the handle 2 is arranged on the cover head 31, so that the diaphragm 4 is locked, and the diaphragm cannot autonomously act due to stirring of the fuel pressure. Specifically, the limiting structure is a groove 312 extending transversely at the top of the chute 311, and the vertical height of a slideway 313 connected between the groove 312 and the chute 311 is lower than the vertical height of the upper end face of the cap 32. Considering that the protrusion 211 is still located inside the chute 311 when the diaphragm 4 is located at the top of the pump cavity 64, a slide way 313 is laterally formed at the middle-upper portion of the chute 311, so that the protrusion 211 can be separated from the chute 311 and enter the recess 313, and further, the limit function of the handle 2 is realized due to the abutment of the protrusion 211 and the bottom of the recess 312. Further, both sides of the groove 312 can play a role in limiting the protrusions 211 in a left-right manner, so that the gland 3 and the handle 2 are better fixed and limited, that is, the diaphragm 4 cannot move up and down relative to the gland 3, limiting is completed, and fatigue damage of the diaphragm 4 caused by repeated actions is avoided. Further, by optimizing the structures of the gland 3 and the handle 2, one-time molding of the die can be realized, and the gland 3 and the handle 2 in the embodiment are of one-time molding structures, so that secondary processing is not needed, and the production and processing cost is reduced.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above description will be apparent to persons of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. The utility model provides a fuel filter seat, includes pedestal (1) and locates manual oil pump on pedestal (1), its characterized in that, manual oil pump includes:
a handle (2) arranged outside the manual oil pump;
the gland (3) comprises a cover head (31) and a cover plate (32) connected with the cover head (31), and the cover plate (32) is fixed on the seat body (1);
a diaphragm (4) which is connected to the handle (2) and is provided inside the cover plate (32);
when the handle (2) is in a first position relative to the cap (31), the handle (2) can slide up and down relative to the cap (31); in the second position, the handle (2) is axially locked relative to the cap (31).
2. The fuel filter base according to claim 1, characterized in that the handle (2) comprises:
a cap (21) provided with a protrusion (211) therein, the cap (31) being slidably provided inside the cap (21);
the hollow column (22) is provided with a cavity, and the hollow column (22) is positioned inside the cap (21) and is integrally formed with the cap (21).
3. The fuel filter seat according to claim 2, characterized in that the membrane (4) is hinged to the cavity of the hollow column (22) by means of a ball head.
4. The fuel filter base according to claim 2, wherein the cap (31) is provided with a slide groove (311), and the projection (211) is slidable up and down along the slide groove (311).
5. The fuel filter base according to claim 4, characterized in that a groove (312) is laterally extended from the top of the chute (311), and the protrusion (211) can be abutted inside the groove (312).
6. The fuel filter base according to claim 5, characterized in that a slideway (313) is connected between the groove (312) and the chute (311).
7. The fuel filter seat according to claim 2, characterized in that the hollow column (22) is externally sheathed with a spring, which is provided between the cap (21) and the cover plate (32).
8. The fuel filter base according to claim 1, wherein an oil inlet (61) and an oil outlet (62) are provided in the base body (1), and an oil passage formed from the oil inlet (61) to the oil outlet (62) is provided with an oil inlet check valve (51), an oil outlet check valve (52) and a main check valve (53).
9. The fuel filter base according to claim 8, characterized in that a pump chamber (64) through which fuel flows is provided below the diaphragm (4), the pump chamber (64) being in communication with the fuel inlet check valve (51) and the fuel outlet check valve (52).
10. The fuel filter base according to any one of claims 1 to 9, wherein the manual oil pump is provided on a side through which the filtered fuel flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466588.XA CN107882668B (en) | 2017-12-28 | 2017-12-28 | Fuel filter seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466588.XA CN107882668B (en) | 2017-12-28 | 2017-12-28 | Fuel filter seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107882668A CN107882668A (en) | 2018-04-06 |
| CN107882668B true CN107882668B (en) | 2023-12-19 |
Family
ID=61770614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711466588.XA Active CN107882668B (en) | 2017-12-28 | 2017-12-28 | Fuel filter seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882668B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4112152B1 (en) * | 2021-07-02 | 2024-01-03 | MANN+HUMMEL GmbH | Filter system comprising a pump and filter head module for a filter system |
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| FR880242A (en) * | 1941-03-18 | 1943-03-17 | Pallas Apparate Gmbh | Diaphragm pump for the circulation of liquids, in particular fuels |
| FR1278042A (en) * | 1960-10-24 | 1961-12-08 | Prec Mecanique Labinal | Priming filter-pump assembly for diesel engine fuel system |
| US3358610A (en) * | 1964-12-08 | 1967-12-19 | Munster Simms Eng Ltd | Diaphragm pumps |
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