CN203614295U - An engine and a fuel filter - Google Patents
An engine and a fuel filter Download PDFInfo
- Publication number
- CN203614295U CN203614295U CN201320739545.5U CN201320739545U CN203614295U CN 203614295 U CN203614295 U CN 203614295U CN 201320739545 U CN201320739545 U CN 201320739545U CN 203614295 U CN203614295 U CN 203614295U
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- fuel
- filter
- filter bowl
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- valve
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Abstract
The utility model discloses a fuel filter used for an engine. The fuel filter comprises a fuel inlet and a fuel outlet and at least comprises a first-stage filter cup, a second-stage filter cup, a third-stage filter cup and a main fuel way communicated with an inlet and an outlet of the filter cup of each stage independently. The fuel inlet is formed at the inlet end of the main fuel way and the fuel outlet is formed at the outlet end of the main fuel way. The filter cup of each stage is communicated with the main fuel way independently and forms an independent fuel circulating circuit. When the filter cup of one stage or the filter cups of two stages are replaced, the normal work of the rest filter cup(s) is not influenced, so that the filter cups can be replaced in the state of normal work of the fuel filter, the influence of the replacement of the filter cups on the engine is prevented and the working efficiency is increased. The utility model also discloses an engine comprising the fuel filter.
Description
Technical field
The utility model relates to engine accessory technical field, particularly a kind of fuel filter for motor.The utility model also relates to a kind of motor that comprises above-mentioned fuel filter.
Background technique
In fuel oil, ubiquitous impurity and fuel tank use the dirt of precipitation for a long time, capital affects the purity of fuel oil, if these impurity and dirt enter motor, can cause the obstruction of motor associated components, affect the normal work of motor, therefore, before fuel oil enters motor, conventionally need to be by impurity filtering larger harm.Fuel filter is the device of the solid sundries such as iron oxide, dust in filtering fuel oil, fuel filter is set and can avoids solid impurity to enter motor, prevent oil-fired system especially oil nozzle stop up, reduce the wearing and tearing of motor.
In order to guarantee filtering effect, generally adopt the form of three grades of filter bowls at present.Three grades of traditional filter bowl fuel filters comprise filler opening, filler opening is communicated with the import of first order filter bowl, the outlet of first order filter bowl is communicated with the import of second level filter bowl, the outlet of second level filter bowl is communicated with the import of third level filter bowl, the outlet of third level filter bowl is communicated with the oil outlet of system, has respectively filter element in filter bowls at different levels; Like this, in the time that fuel oil enters fuel filter by filler opening, successively by first order filter bowl, second level filter bowl and third level filter bowl, after successively filtering in filter bowls at different levels, clean fuel oil flows out from oil outlet, then enters motor.
But; between the filter bowls at different levels of three grades of traditional fuel filters, be that series connection arranges; in the time that certain one-level filter bowl generation wearing and tearing need to be changed; must make whole fuel filter quit work; be that motor need to be shut down the replacing that just can complete certain one-level filter bowl; cannot realize and not shut down replacing, affect the normal work of motor.
Therefore, that how to realize three grades of fuel filters does not shut down replacing filter bowl, affects the normal work of motor while avoiding replacing fuel filter filter bowl, needs the problem of solution with regard to becoming those skilled in the art badly.
Model utility content
The purpose of this utility model is to provide a kind of fuel filter for motor, and it can change filter bowl in normal operation, and the impact on motor while having avoided filter bowl to change, has improved working efficiency.Another object of the present utility model is to provide a kind of motor that comprises above-mentioned fuel filter.
For solving the problems of the technologies described above, the utility model provides a kind of fuel filter for motor, comprises filler opening and oil outlet; Also at least comprise first order filter bowl, second level filter bowl and third level filter bowl, and the working connection being independently communicated with respectively with import and the outlet of filter bowls at different levels; Described filler opening is formed at the entrance point of described working connection, and described oil outlet is formed at the outlet end of described working connection.
Preferably, also comprise the first valve, the first import of described first order filter bowl is communicated with or ends with described working connection by described the first valve.
Preferably, described the first valve comprises the first in-line being communicated with described working connection, and the first fuel-displaced pipeline being communicated with described the first import; Described the first fuel-displaced pipeline is articulated with described the first in-line, and can rotate with respect to described the first in-line around hinging shaft.
Preferably, also comprise the second valve, the second import of described second level filter bowl is communicated with or ends with described working connection by described the second valve.
Preferably, described the second valve comprises the second in-line being communicated with described working connection, and the second fuel-displaced pipeline being communicated with described the second import; Described the second fuel-displaced pipeline is articulated with described the second in-line, and can rotate with respect to described the second in-line around hinging shaft.
Preferably, also comprise the 3rd valve, the triple feed inlet of described third level filter bowl is communicated with or ends with described working connection by described the 3rd valve.
Preferably, described the 3rd valve comprises the 3rd in-line being communicated with described working connection, and the 3rd fuel-displaced pipeline being communicated with described triple feed inlet; Described the 3rd fuel-displaced pipeline is articulated with described the 3rd in-line, and can rotate with respect to described the 3rd in-line around hinging shaft.
Preferably, also comprise filter block, filter bowls at different levels are installed on respectively in described filter block.
The utility model also provides a kind of motor, comprises body and the fuel filter being connected with described body oil circuit, and described fuel filter is fuel filter as above.
Further, be specially marine diesel engine.
Fuel filter provided by the utility model is for motor, this fuel filter comprises filler opening and oil outlet, also at least comprise first order filter bowl, second level filter bowl and third level filter bowl, and the working connection being independently communicated with respectively with import and the outlet of filter bowls at different levels, wherein, filler opening is formed at the entrance point of working connection, and oil outlet is formed at the outlet end of described working connection; Particularly, the first import of working connection and first order filter bowl and the first outlet are communicated with, and the fuel oil that filler opening flows into enters first order filter bowl through the first import, have crossed after completing and have exported outflow first order filter bowl by first, reenter working connection; The second import of working connection and second level filter bowl and the second outlet are communicated with, and the fuel oil that filler opening flows into enters second level filter bowl through the second import, have crossed after completing and have exported outflow second level filter bowl by second, reenter working connection; The triple feed inlet of working connection and third level filter bowl and the 3rd outlet are communicated with, and the fuel oil that filler opening flows into enters third level filter bowl through triple feed inlet, have crossed after completing and have exported outflow third level filter bowl by the 3rd, reenter working connection; Filter bowls at different levels complete the fuel oil that reenters working connection after filtration, flow out fuel filter by oil outlet.
Like this, filter bowls at different levels are communicated with working connection independently of one another, filter bowls at different levels form independently fuel oil flow cycle, when certain one-level or two-stage filter bowl are changed, can not affect the normal work of all the other filter bowls, thereby realized fuel filter and changed in normal operation filter bowl, the impact on motor while having avoided filter bowl to change, has improved working efficiency.
In a kind of embodiment, fuel filter provided by the utility model also comprises the first valve, and the first import of first order filter bowl is communicated with or ends with working connection by the first valve; Like this, in normal operation, the first valve open, the fuel oil in working connection enters first order filter bowl by the first import, after filtration, comes back to working connection from the first outlet; And in the time that needs are pulled down first order filter bowl, by the first valve closing, switch being communicated with between first order filter bowl and working connection, fuel oil directly enters second level filter bowl from working connection, thereby while having avoided dismounting first order filter bowl, fuel oil thanks from first order filter bowl, has improved the performance of fuel filter.
In another kind of embodiment, fuel filter provided by the utility model, its first valve comprises the first in-line being communicated with described working connection, and the first fuel-displaced pipeline being communicated with described the first import; Described the first fuel-displaced pipeline is articulated with described the first in-line, and can rotate with respect to described the first in-line around hinging shaft.In the time that first order filter bowl is normally worked, the first residing position of fuel-displaced pipeline is the position being communicated with the first import, thereby realizes being communicated with of first order filter bowl and working connection; In the time that needs are pulled down first order filter bowl, the rotation by the first fuel-displaced pipeline around the first in-line, is staggered the first fuel-displaced pipeline and the first import, thereby cuts off being communicated with between first order filter bowl and working connection.Like this, realize the break-make of first order filter bowl and working connection by the pipeline section type valve rotating, simple in structure, and be convenient to control.
Accompanying drawing explanation
Fig. 1 is the stereogram of a kind of embodiment of fuel filter provided by the utility model;
Fig. 2 is the structural representation of fuel filter shown in Fig. 1 in the time that three grades of filter bowls are all normally worked;
Fig. 3 is the structural representation of fuel filter shown in Fig. 1 in the time that first order filter bowl quits work;
Fig. 4 is the structural representation of fuel filter shown in Fig. 1 in the time that second level filter bowl quits work;
Fig. 5 is the structural representation of fuel filter shown in Fig. 1 in the time that third level filter bowl quits work.
Embodiment
Core of the present utility model is to provide a kind of fuel filter for motor, and it can change filter bowl in normal operation, and the impact on motor while having avoided filter bowl to change, has improved working efficiency.Another core of the present utility model is to provide a kind of motor that comprises above-mentioned fuel filter.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1 to Fig. 5, Fig. 1 is the stereogram of a kind of embodiment of fuel filter provided by the utility model; Fig. 2 is the structural representation of fuel filter shown in Fig. 1 in the time that three grades of filter bowls are all normally worked; Fig. 3 is the structural representation of fuel filter shown in Fig. 1 in the time that first order filter bowl quits work; Fig. 4 is the structural representation of fuel filter shown in Fig. 1 in the time that second level filter bowl quits work; Fig. 5 is the structural representation of fuel filter shown in Fig. 1 in the time that third level filter bowl quits work.
Fuel filter provided by the utility model is for motor, this fuel filter comprises filler opening 1 and oil outlet 2, also at least comprise first order filter bowl 31, second level filter bowl 32 and third level filter bowl 33, and the working connection 4 being independently communicated with respectively with import and the outlet of filter bowls at different levels, wherein, filler opening 1 is formed at the entrance point of working connection 4, and oil outlet 2 is formed at the outlet end of described working connection 4; Particularly, working connection 4 is communicated with the first import 311 and first outlet 312 of first order filter bowl 31, the fuel oil that filler opening 1 flows into enters first order filter bowl 31 through the first import 311, has crossed after completing and has flowed out first order filter bowls 31 by the first outlet 312, reenters working connection 4; Working connection 4 is communicated with the second import 321 and second outlet 322 of second level filter bowl 32, the fuel oil that filler opening 1 flows into enters second level filter bowl 32 through the second import 321, cross after completing and flowed out second level filter bowls 32 by the second outlet 322, reentered working connection 4; Working connection 4 is communicated with triple feed inlet 331 and the 3rd outlet 332 of third level filter bowl 33, the fuel oil that filler opening 1 flows into enters third level filter bowl 33 through triple feed inlet 331, cross after completing and flowed out third level filter bowls 33 by the 3rd outlet 332, reentered working connection 4; Filter bowls at different levels complete the fuel oil that reenters working connection 4 after filtration, flow out fuel filter by oil outlet 2.
Above-mentioned filter bowl at different levels can be installed on respectively in filter block 6, and filter block 6 has integral structure, so that the integrated setting of filter bowl at different levels.
Like this, filter bowls at different levels are communicated with working connection 4 independently of one another, filter bowls at different levels form independently fuel oil flow cycle, when certain one-level or two-stage filter bowl are changed, can not affect the normal work of all the other filter bowls, thereby realized fuel filter and changed in normal operation filter bowl, the impact on motor while having avoided filter bowl to change, has improved working efficiency.
In above-mentioned embodiment, fuel filter provided by the utility model also comprises the first valve 51, and the first import 311 of first order filter bowl 31 is communicated with or ends with working connection 4 by the first valve 51; Like this, in normal operation, the first valve 51 is opened, and the fuel oil in working connection 4 enters first order filter bowl 31 by the first import 311, after filtration, comes back to working connection 4 from the first outlet 312; And in the time that needs are pulled down first order filter bowl 31, the first valve 51 is closed, switch being communicated with between first order filter bowl 31 and working connection 4, fuel oil directly enters second level filter bowl 32 from working connection 4, thereby while having avoided dismounting first order filter bowl 31, fuel oil thanks from first order filter bowl 31, has improved the performance of fuel filter.
Above-mentioned the first valve 51 comprises the first in-line being communicated with described working connection 4, and the first fuel-displaced pipeline being communicated with described the first import 311; Described the first fuel-displaced pipeline is articulated with the first in-line, and can rotate with respect to described the first in-line around hinging shaft.In the time of the normal work of first order filter bowl 31, the first residing position of fuel-displaced pipeline is the position being communicated with the first import 311, thereby realizes being communicated with of first order filter bowl 31 and working connection 4; In the time that needs are pulled down first order filter bowl 31, the rotation by the first fuel-displaced pipeline around the first in-line, is staggered the first fuel-displaced pipeline and the first import 311, thereby cuts off being communicated with between first order filter bowl 31 and working connection 4.Like this, realize the break-make of first order filter bowl 31 and working connection 4 by the pipeline section type valve rotating, simple in structure, and be convenient to control.
From theory, the first valve 51 is also not limited to said structure, as long as the first valve 51 can be realized the break-make of first order filter bowl 31 and working connection 4, for example, the first valve 51 can be also the conventional valve mechanism using in the related domains such as Flap valve.
In above-mentioned embodiment, fuel filter provided by the utility model also comprises the second valve 52, and the second import 321 of second level filter bowl 32 is communicated with or ends with working connection 4 by the second valve 52; Like this, in normal operation, the second valve 52 is opened, and the fuel oil in working connection 4 enters second level filter bowl 32 by the second import 321, after filtration, comes back to working connection 4 from the second outlet 322; And in the time that needs are pulled down second level filter bowl 32, the second valve 52 is closed, switch being communicated with between second level filter bowl 32 and working connection 4, fuel oil directly enters second level filter bowl 32 from working connection 4, thereby while having avoided dismounting second level filter bowl 32, fuel oil leaks from second level filter bowl 32, has improved the performance of fuel filter.
The second valve 52 comprises the second in-line being communicated with described working connection 4, and the second fuel-displaced pipeline being communicated with described the second import 321; Described the second fuel-displaced pipeline is articulated with the second in-line, and can rotate with respect to described the second in-line around hinging shaft.In the time of the normal work of second level filter bowl 32, the second residing position of fuel-displaced pipeline is the position being communicated with the second import 321, thereby realizes being communicated with of second level filter bowl 32 and working connection 4; In the time that needs are pulled down second level filter bowl 32, the rotation by the second fuel-displaced pipeline around the second in-line, is staggered the second fuel-displaced pipeline and the second import 321, thereby cuts off being communicated with between second level filter bowl 32 and working connection 4.Like this, realize the break-make of second level filter bowl 32 and working connection 4 by the pipeline section type valve rotating, simple in structure, and be convenient to control.
From theory, the second valve 52 is also not limited to said structure, as long as the second valve 52 can be realized the break-make of second level filter bowl 32 and working connection 4, for example, the second valve 52 can be also the conventional valve mechanism using in the related domains such as Flap valve.
It is to be noted, fuel filter provided by the utility model is not limited to the situation that only has three grades of filter bowls, from theory, the multistage filter bowl that is greater than three grades also can be set, level Four filter bowl, Pyatyi filter bowl etc. are for example set, structure and the above-mentioned filter bowl structural similarity of newly-increased filter bowls at different levels, do not repeating.The progression that filter bowl is specifically set should be determined according to actual filtration requirement and the device space.
In above-mentioned embodiment, fuel filter provided by the utility model also comprises the 3rd valve 53, and the triple feed inlet 331 of third level filter bowl 33 is communicated with or ends with working connection 4 by the 3rd valve 53; Like this, in normal operation, the 3rd valve 53 is opened, and the fuel oil in working connection 4 enters third level filter bowl 33 by triple feed inlet 331, after filtration, comes back to working connection 4 from the 3rd outlet 332; And in the time that needs are pulled down third level filter bowl 33, the 3rd valve 53 is closed, switch being communicated with between third level filter bowl 33 and working connection 4, fuel oil directly enters second level filter bowl 32 from working connection 4, thereby while having avoided dismounting third level filter bowl 33, fuel oil leaks from third level filter bowl 33, has improved the performance of fuel filter.
The 3rd valve 53 comprises the 3rd in-line being communicated with described working connection 4, and the 3rd fuel-displaced pipeline being communicated with described triple feed inlet 331; Described the 3rd fuel-displaced pipeline is articulated with above-mentioned the 3rd in-line, and can rotate with respect to described the 3rd in-line around hinging shaft.In the time of the normal work of third level filter bowl 33, the 3rd residing position of fuel-displaced pipeline is the position being communicated with triple feed inlet 331, thereby realizes being communicated with of third level filter bowl 33 and working connection 4; In the time that needs are pulled down third level filter bowl 33, the rotation by the 3rd fuel-displaced pipeline around the 3rd in-line, is staggered the 3rd fuel-displaced pipeline and triple feed inlet 331, thereby cuts off being communicated with between third level filter bowl 33 and working connection 4.Like this, realize the break-make of third level filter bowl 33 and working connection 4 by the pipeline section type valve rotating, simple in structure, and be convenient to control.
From theory, the 3rd valve 53 is also not limited to said structure, as long as the 3rd valve 53 can be realized the break-make of third level filter bowl 33 and working connection 4, for example, the 3rd valve 53 can be also the conventional valve mechanism using in the related domains such as Flap valve.
Preferably, above-mentioned the first valve 51, the second valve 52 and the 3rd valve 53 exist simultaneously, apparently, arbitrary or any two valves also can be set separately.
It is pointed out that ordinal numbers such as " first, second, third " described in literary composition is the different structure in order to distinguish same names, only for convenience, do not represent certain order, more should not be construed as any restriction.
Take above-mentioned embodiment as example, sketch the working procedure of fuel filter provided by the utility model below.
As shown in Figure 2, when the first valve 51, the second valve 52 and the 3rd valve 53 are during all in open mode, the fuel oil in working connection 4 enters first order filter bowl 31 through the first import 311, flows out first order filter bowl 31 through the first outlet 312; Enter second level filter bowl 32 through the second import 321, flow out second level filter bowl 32 through the second outlet 322; Enter third level filter bowl 33 through triple feed inlet 331, flow out third level filter bowl 33 through the 3rd outlet 332; Filter bowls at different levels are all in normal working.
As shown in Figure 3, when the first valve 51 is closed, when the second valve 52 and the 3rd valve 53 are opened, fuel oil first import 311 of flowing through, because this first import 311 is closed, fuel oil cannot enter first order filter bowl 31, directly enters second level filter bowl 32 through the second import 321, flows out second level filter bowl 32 through the second outlet 322; Enter third level filter bowl 33 through triple feed inlet 331, flow out third level filter bowl 33 through the 3rd outlet 332; Now, first order filter bowl 31 is not worked, and second level filter bowl 32 and third level filter bowl 33 be in normal working, replaceable first order filter bowl 31.
As shown in Figure 4, when the second valve 52 is closed, when the first valve 51 and the 3rd valve 53 are opened, fuel oil enters first order filter bowl 31 through the first import 311, flows out first order filter bowl 31 through the first outlet 312; Through the second import 321, because this second import 321 is closed, fuel oil cannot enter second level filter bowl 32, directly enters third level filter bowl 33 through triple feed inlet 331, flows out third level filter bowl 33 through the 3rd outlet 332; Now second level filter bowl 32 is not worked, and first order filter bowl 31 and third level filter bowl 33 be in normal working, replaceable second level filter bowl 32.
As shown in Figure 5, when the 3rd valve 53 is closed, when the first valve 51 and the second valve 52 are opened, fuel oil enters first order filter bowl 31 through the first import 311, flows out filter bowl through the first outlet 312; Enter second level filter bowl 32 through the second import 321, flow out second level filter bowl 32 through the second outlet 322; Through triple feed inlet 331, because this triple feed inlet 331 is closed, fuel oil cannot enter third level filter bowl 33, is flowed directly to oil outlet 2; Now third level filter bowl 33 is not worked, and first order filter bowl 31 and second level filter bowl 32 be in normal working, replaceable third level filter bowl 33.
Except above-mentioned fuel filter, the utility model also provides a kind of motor that comprises above-mentioned fuel filter, and other each several part structures of this motor please refer to prior art, do not repeat them here.
Particularly, above-mentioned motor can be marine diesel engine or diesel engine for automobile etc.
Above a kind of motor provided by the utility model and fuel filter thereof are described in detail.Applied specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. for a fuel filter for motor, comprise filler opening (1) and oil outlet (2); It is characterized in that, also at least comprise first order filter bowl (31), second level filter bowl (32) and third level filter bowl (33), and the working connection (4) being independently communicated with respectively with import and the outlet of filter bowls at different levels; Described filler opening (1) is formed at the entrance point of described working connection (4), and described oil outlet (2) is formed at the outlet end of described working connection (4).
2. the fuel filter for motor according to claim 1, it is characterized in that, also comprise the first valve (51), first import (311) of described first order filter bowl (31) is communicated with or ends with described working connection (4) by described the first valve (51).
3. the fuel filter for motor according to claim 2, is characterized in that, described the first valve (51) comprises the first in-line being communicated with described working connection (4), and the first fuel-displaced pipeline being communicated with described the first import (311); Described the first fuel-displaced pipeline is articulated with described the first in-line, and rotates with respect to described the first in-line around hinging shaft.
4. the fuel filter for motor according to claim 1, it is characterized in that, also comprise the second valve (52), second import (321) of described second level filter bowl (32) is communicated with or ends with described working connection (4) by described the second valve (52).
5. the fuel filter for motor according to claim 4, is characterized in that, described the second valve (52) comprises the second in-line being communicated with described working connection (4), and the second fuel-displaced pipeline being communicated with described the second import (321); Described the second fuel-displaced pipeline is articulated with described the second in-line, and rotates with respect to described the second in-line around hinging shaft.
6. the fuel filter for motor according to claim 1, it is characterized in that, also comprise the 3rd valve (53), the triple feed inlet (331) of described third level filter bowl (33) is communicated with or ends with described working connection (4) by described the 3rd valve (53).
7. the fuel filter for motor according to claim 6, is characterized in that, described the 3rd valve (53) comprises the 3rd in-line being communicated with described working connection (4), and the 3rd fuel-displaced pipeline being communicated with described triple feed inlet (331); Described the 3rd fuel-displaced pipeline is articulated with described the 3rd in-line, and rotates with respect to described the 3rd in-line around hinging shaft.
8. according to the fuel filter for motor described in claim 1 to 7 any one, it is characterized in that, also comprise filter block (6), filter bowls at different levels are installed on respectively in described filter block (6).
9. a motor, comprises body and the fuel filter being connected with described body oil circuit, it is characterized in that, described fuel filter is the fuel filter as described in claim 1 to 8 any one.
10. motor according to claim 9, is characterized in that, is specially marine diesel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739545.5U CN203614295U (en) | 2013-11-20 | 2013-11-20 | An engine and a fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739545.5U CN203614295U (en) | 2013-11-20 | 2013-11-20 | An engine and a fuel filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614295U true CN203614295U (en) | 2014-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320739545.5U Withdrawn - After Issue CN203614295U (en) | 2013-11-20 | 2013-11-20 | An engine and a fuel filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670849A (en) * | 2013-11-20 | 2014-03-26 | 潍柴动力股份有限公司 | Engine and fuel filter thereof |
-
2013
- 2013-11-20 CN CN201320739545.5U patent/CN203614295U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670849A (en) * | 2013-11-20 | 2014-03-26 | 潍柴动力股份有限公司 | Engine and fuel filter thereof |
| CN103670849B (en) * | 2013-11-20 | 2016-09-07 | 潍柴动力股份有限公司 | A kind of engine and fuel filter thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20160907 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |