CN202937386U - Structure for troubleshooting blocking faults of fine filter of common rail system - Google Patents
Structure for troubleshooting blocking faults of fine filter of common rail system Download PDFInfo
- Publication number
- CN202937386U CN202937386U CN 201220632780 CN201220632780U CN202937386U CN 202937386 U CN202937386 U CN 202937386U CN 201220632780 CN201220632780 CN 201220632780 CN 201220632780 U CN201220632780 U CN 201220632780U CN 202937386 U CN202937386 U CN 202937386U
- Authority
- CN
- China
- Prior art keywords
- oil
- pipeline
- pipe
- fine filter
- fine cleaner
- 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.)
- Expired - Fee Related
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- Filtration Of Liquid (AREA)
Abstract
The utility model relates to a structure for troubleshooting blocking faults of a fine filter of a common rail system. The structure is composed of a positive pressure gage, a T-shaped pipe, an oil tank, a coarse filter, the fine filter, an oil delivery pump, a high-pressure oil pump, an internal thread transition joint and an external thread transition joint, and the structure is characterized in that the oil outlet end of the oil tank is connected with an oil inlet of the coarse filter through a pipe, an oil outlet of the coarse filter is connected with the oil delivery pump through a pipe, the oil outlet end of the oil delivery pump is connected with the oil inlet end of the fine filter through a pipe, the oil outlet end of the fine filter is connected with the high-pressure oil pump through a pipe, the T-shaped pipe is connected onto a pipe between the oil delivery pump and the fine filter, the left end and the right end of the T-shaped pipe are respectively connected with the pipe, and the third end of the T-shaped pipe is connected with the positive pressure gage. The structure can measure pressure values at the inlet of the fine filter, judges whether the fine filter is blocked and needs changing or not according to the pressure values and can effectively analyze the faults, accurately judge trouble units, shorten maintenance time and guarantee a machine of a user to rapidly put into operation again.
Description
Technical field
The utility model relates to a kind of structure that the common rail system fine cleaner blocks fault of investigating, and belongs to the technical field of Design Technology for Diesels.
Background technique
Domestic diesel engine generally adopts the electric-controlled co-rail fuel injection system, and the fault that common rail system usually blocks due to fine cleaner in application process causes motor can't start, be short of power, shake, even flame-out.Maintenance man's diagnostic equipments that adopt when the commercial car of maintenance electric-controlled co-rail system check the fault that car load occurs more at present, use diagnostic equipment can only judge fine cleaner and may occur blocking, and can not accurately affirm whether fine cleaner blocks.
Summary of the invention
The purpose of this utility model is to provide a kind of structure that the common rail system fine cleaner blocks fault of investigating, and whether it can measure the force value of fine cleaner import, according to force value, judges whether fine cleaner blocks, need to change; Effectively the analysis of failure phenomenon, accurately judge trouble unit, shortens engineering time, guarantees that user's vehicle drops into operation fast again.
The technical solution of the utility model is achieved in that a kind of structure that the common rail system fine cleaner blocks fault of investigating, by the positive pressure table, T-shaped pipeline, fuel tank, strainer, fine cleaner, oil transfer pump, high pressure oil pump internal thread transit joint, the outside thread transit joint forms, it is characterized in that: the oil outlet end of fuel tank is connected with the filler opening of strainer by pipeline, the oil outlet of strainer connects oil transfer pump by pipeline, the oil transfer pump oil outlet end connects the fine cleaner oil inlet end by pipeline, the fine cleaner oil outlet end connects high pressure oil pump by pipeline again, be connected with T-shaped pipeline on pipeline between oil transfer pump and fine cleaner, two ends, T-shaped pipeline left and right are connecting pipeline respectively, the 3rd end is connected with the positive pressure table.
The two ends, left and right of described T-shaped pipeline, an end is the internal thread transit joint, the other end is the outside thread transit joint.
Whether good effect of the present utility model is its force value that can measure the fine cleaner import, according to force value, judges whether fine cleaner blocks, need to change; Effectively the analysis of failure phenomenon, accurately judge trouble unit, shortens engineering time, guarantees that user's vehicle drops into operation fast again.
The accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further: as shown in Figure 1, a kind of structure of investigating common rail system fine cleaner obstruction fault, by positive pressure table 1, T-shaped pipeline 2, fuel tank 3, strainer 4, fine cleaner 5, oil transfer pump 6, high pressure oil pump 7, internal thread transit joint 8, outside thread transit joint 9 forms, it is characterized in that: the oil outlet end of fuel tank 3 is connected with the filler opening of strainer 4 by pipeline, the oil outlet of strainer 4 connects oil transfer pump 6 by pipeline, , oil transfer pump 6 oil outlet ends connect fine cleaner 5 oil inlet ends by pipeline, the fine cleaner oil outlet end connects high pressure oil pump 7 by pipeline again, be connected with T-shaped pipeline 2 on pipeline between oil transfer pump 6 and fine cleaner 5, T-shaped pipeline 2 two ends, left and right are connecting pipeline respectively, the 3rd end is connected with positive pressure table 1.
The two ends, left and right of described T-shaped pipeline 2, an end is internal thread transit joint 8, the other end is outside thread transit joint 9.
Embodiment
As shown in Figure 1, the two ends, left and right of T-shaped pipeline 2 are connected on the pipeline between oil transfer pump 6 and fine cleaner 5, and an end is internal thread transit joint 8, and the other end is that outside thread transit joint 9, the three ends connect positive pressure table 1, is combined into means of pressure measurement.During work: measuring tool is accessed to fine cleaner 5 oil inlet ends, and the ato unit measured pressure value, when the force value of this point is (8～17) bar, illustrate that fine cleaner 5 has blocked, and arrive working life, the fine cleaner that need to more renew.
Claims (2)
1. investigate the structure that the common rail system fine cleaner blocks fault for one kind, by the positive pressure table, T-shaped pipeline, fuel tank, strainer, fine cleaner, oil transfer pump, high pressure oil pump internal thread transit joint, the outside thread transit joint forms, it is characterized in that: the oil outlet end of fuel tank is connected with the filler opening of strainer by pipeline, the oil outlet of strainer connects oil transfer pump by pipeline, the oil transfer pump oil outlet end connects the fine cleaner oil inlet end by pipeline, the fine cleaner oil outlet end connects high pressure oil pump by pipeline again, be connected with T-shaped pipeline on pipeline between oil transfer pump and fine cleaner, two ends, T-shaped pipeline left and right are connecting pipeline respectively, the 3rd end is connected with the positive pressure table.
2. according to a kind of structure of investigating common rail system fine cleaner obstruction fault described in claim 1, it is characterized in that the two ends, left and right of described T-shaped pipeline, an end is the internal thread transit joint, and the other end is the outside thread transit joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632780 CN202937386U (en) | 2012-11-27 | 2012-11-27 | Structure for troubleshooting blocking faults of fine filter of common rail system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632780 CN202937386U (en) | 2012-11-27 | 2012-11-27 | Structure for troubleshooting blocking faults of fine filter of common rail system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937386U true CN202937386U (en) | 2013-05-15 |
Family
ID=48321630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220632780 Expired - Fee Related CN202937386U (en) | 2012-11-27 | 2012-11-27 | Structure for troubleshooting blocking faults of fine filter of common rail system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937386U (en) |
-
2012
- 2012-11-27 CN CN 201220632780 patent/CN202937386U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20191127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |