WO2005108776A1 - Cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, especially for workshop application - Google Patents
Cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, especially for workshop application Download PDFInfo
- Publication number
- WO2005108776A1 WO2005108776A1 PCT/CZ2004/000052 CZ2004000052W WO2005108776A1 WO 2005108776 A1 WO2005108776 A1 WO 2005108776A1 CZ 2004000052 W CZ2004000052 W CZ 2004000052W WO 2005108776 A1 WO2005108776 A1 WO 2005108776A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cleaning
- cleaning liquid
- jet
- internal combustion
- combustion engines
- Prior art date
Links
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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/007—Cleaning
- F02M65/008—Cleaning of injectors only
Definitions
- the invention concerns a cleaning and diagnostic equipment of fuel injection jets of engines with internal combustion by means of a cleaning liquid, especially for workshop application, which can be used for cleaning of the dismantled injection jets from the deposited impurities and also for inspection measurement of the fuel amount passing through a particular injection jet with its electromagnetic valve either continuously opened or frequency lifted.
- the goal of this invention is to create a cleaning and diagnostic device of such a design that would allow a simple manipulation, an easy installation and a reliable functioning during vehicle servicing, particularly in smaller repair shops.
- a cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, consisting of a cleaning agent container connected via a regulating valve and a pressure indicator to a source of pressure air and/or equipped with a transport pump of the cleaning agent, where at the outlet point of the container there is connected the inlet part of an injection jet equipped with an electromagnetic valve according to the invention, the principle of which resides in the fact that to the outlet part of the injection jet there is connected a measuring cylinder, whereas to the electromagnetic valve of the injection jet there is connected an electronic control unit.
- This electronic control unit is equipped with the controlling element for opening of the jet, the controlling element for timing of the test, the controlling element of the cleaning process and the controlling element for ending of the functions.
- the advantages of the equipment according to the invention rest particularly in the fact that in a simple wiring it is possible to perform a very efficient cleaning of the injection jets and at the same time to effect its inspection and measurement of the fuel through-flow in comparison with another perfectly cleaned injection jet.
- the overall simplicity of the equipment constitutes another advantage and a good case for an easy application also in small repair and service stations.
- the application of the equipment according to the invention does not generate any waste, because the cleaning liquid after having been used for the functionality testing and cleaning of the injection jets can be applied to the last drop to the final purification of the vehicle's fuel system.
- Fig. 1 schematically depicts the main structural members of the equipment together with an alternative execution of the cleaning liquid supply by means of an electric pump.
- Fig. 1 the source of pressure air 1 is seen, connected via the regulating valve 2 and the pressure indicator 3 to the cleaning agent container 4, which is fitted with the cleaning agent output port 42.
- the cleaning agent 4J. is transported through a piping or tubing duct via the shut-off element 5J2 of the cleaning agent line into the inlet part of the injection jet 5 equipped with the electromagnetic valve 5J. of the jet.
- the outlet part of the injection jet 5 is connected to the inlet part of the measuring cylinder 6 equipped with the discharging shut-off element 6J., which is mounted just as the injection jet 5 on the common stand 9.
- the electromagnetic valve 5J. of the jet is wired to the electronic control unit 7, which is connected to the electric power supply 8 and which is equipped with the controlling element 7J. for opening of the jet, the controlling element 7 ⁇ 2 for timing of the test, the controlling element 7J3 of the cleaning process and the controlling element 7 ⁇ for ending of the functions.
- the equipment operates in such a way that being driven by the pressure air from its source I and/or by the electric pump ⁇ , the cleaning liquid 4 . is transported via the regulating valve 12 fitted with the pressure indicator into the inlet part of the injection jet 5, where with the help of the controlling element 7J. for opening of the jet it is possible to leave the electromagnetic valve 5 ⁇ _ of the jet open in order to carry out the cleaning of the injection jet body and at the same time by watching the measuring cylinder 6 to track the shape of the sprayed fuel at the jet outlet including tracking of the through-flow amount of the cleaning liquid 4J., which corresponds to the actual through-flow amount of fuel.
- controlling element for timing of the test 72 it is possible during the time period preset in the electronic control unit 7 to perform the test with the frequency lifted electromagnetic valve 5 . of the jet and so to simulate the running of the vehicle engine.
- the whole testing process can be stopped by the controlling element A for ending of the functions.
Abstract
The design concerns a cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, especially for workshop application, consisting of the cleaning liquid container (4) connected via the regulating valve (2) and the pressure indicator (3) to the pressure air supply (1) and/or equipped with the cleaning liquid electrical pump (1.1), where at the outlet point (4.2) of the container there is connected the inlet part of the injection jet (5) equipped with the electromagnetic valve (5.1), the principle of which resides in the fact that to the outlet part of the injection jet (5) there is connected the measuring cylinder (6), whereas to the electromagnetic valve (5.1) of the injection jet there is connected an electronic control unit. The equipment according to the invention is intended in particular for the use in workshops servicing motor vehicles.
Description
Cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, especially for workshop application
Technological Area
The invention concerns a cleaning and diagnostic equipment of fuel injection jets of engines with internal combustion by means of a cleaning liquid, especially for workshop application, which can be used for cleaning of the dismantled injection jets from the deposited impurities and also for inspection measurement of the fuel amount passing through a particular injection jet with its electromagnetic valve either continuously opened or frequency lifted.
Existing State of Technology
Till the present time, great many types of both cleaning and diagnostic equipment are known, which render it possible to clean the fuel system including the injection jets and to check the functionality of the latter. Most of those devices employ ultrasound or, as the case may be, laser systems to clean the jets, whereas the measurement of the required technical parameters of the injection jets is performed with the help of electronic measurement systems. Yet such devices are noted for their demanding design and technology and therefore appear as hardly practicable and attainable for smaller service stations and workshops.
Therefore, the goal of this invention is to create a cleaning and diagnostic device of such a design that would allow a simple manipulation, an easy installation and a reliable functioning during vehicle servicing, particularly in smaller repair shops.
The Principle of the Invention
To a great extent, the above mentioned drawbacks are eliminated and the required intent is achieved by a cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, consisting of a cleaning agent container connected via a regulating valve and a pressure indicator to a source of pressure air and/or equipped
with a transport pump of the cleaning agent, where at the outlet point of the container there is connected the inlet part of an injection jet equipped with an electromagnetic valve according to the invention, the principle of which resides in the fact that to the outlet part of the injection jet there is connected a measuring cylinder, whereas to the electromagnetic valve of the injection jet there is connected an electronic control unit. This electronic control unit is equipped with the controlling element for opening of the jet, the controlling element for timing of the test, the controlling element of the cleaning process and the controlling element for ending of the functions.
The advantages of the equipment according to the invention rest particularly in the fact that in a simple wiring it is possible to perform a very efficient cleaning of the injection jets and at the same time to effect its inspection and measurement of the fuel through-flow in comparison with another perfectly cleaned injection jet. The overall simplicity of the equipment constitutes another advantage and a good case for an easy application also in small repair and service stations. The application of the equipment according to the invention does not generate any waste, because the cleaning liquid after having been used for the functionality testing and cleaning of the injection jets can be applied to the last drop to the final purification of the vehicle's fuel system.
Summary of the Figures in the Drawing
The equipment according to the invention is sketched on the attached drawing, where Fig. 1 schematically depicts the main structural members of the equipment together with an alternative execution of the cleaning liquid supply by means of an electric pump.
An Example of the Technical Execution
In Fig. 1, the source of pressure air 1 is seen, connected via the regulating valve 2 and the pressure indicator 3 to the cleaning agent container 4, which is fitted with the cleaning agent output port 42. The cleaning agent 4J. is transported through a piping or tubing duct via the shut-off element 5J2 of the cleaning agent line into the inlet part of the injection jet 5 equipped with the electromagnetic valve 5J. of the jet. The outlet part of the injection jet 5 is connected to the inlet part of the measuring cylinder 6 equipped with the discharging shut-off element 6J., which is mounted just as the injection jet 5 on the common stand 9. The electromagnetic valve 5J. of the jet is wired to the electronic control unit 7, which is connected to the electric power supply 8 and which is equipped with the controlling element 7J. for opening of the jet, the controlling element 7\2 for timing of the test,
the controlling element 7J3 of the cleaning process and the controlling element 7Λ for ending of the functions.
The equipment operates in such a way that being driven by the pressure air from its source I and/or by the electric pump Λ, the cleaning liquid 4 . is transported via the regulating valve 12 fitted with the pressure indicator into the inlet part of the injection jet 5, where with the help of the controlling element 7J. for opening of the jet it is possible to leave the electromagnetic valve 5Λ_ of the jet open in order to carry out the cleaning of the injection jet body and at the same time by watching the measuring cylinder 6 to track the shape of the sprayed fuel at the jet outlet including tracking of the through-flow amount of the cleaning liquid 4J., which corresponds to the actual through-flow amount of fuel. By means of the controlling element for timing of the test 72 it is possible during the time period preset in the electronic control unit 7 to perform the test with the frequency lifted electromagnetic valve 5 . of the jet and so to simulate the running of the vehicle engine. The whole testing process can be stopped by the controlling element A for ending of the functions.
Claims
1. The cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, especially for workshop application, consisting of the cleaning liquid container (4) connected via the regulating valve (2) and the pressure indicator (3) to the pressure air source (1) and/or equipped with the cleaning liquid transport pump (1.1), where at the outlet point (4.2) of the container there is connected the inlet part of the injection jet (5) equipped with the electromagnetic valve (5.1), distinguished by the fact that to the outlet part of the injection jet (5) there is connected the measuring cylinder (6), whereas to the electromagnetic valve (5.1) of the injection jet (5) there is connected the electronic control unit (7).
The cleaning and diagnostic equipment of fuel injection jets of internal combustion engines according to the point 1, distinguished by the fact that the electronic control unit (7) is equipped with the controlling element (7.1) for opening of the jet, the controlling element (7.2) for timing of the test, the controlling element (7.3) of the cleaning process and the controlling element (7.4) for ending of the functions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ2004603A CZ295593B6 (en) | 2004-05-10 | 2004-05-10 | Cleaning and diagnostic device of internal combustion engine fuel injection nozzles by means of a cleaning liquid, intended particularly for use in a shop |
| CZPV2004-603 | 2004-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005108776A1 true WO2005108776A1 (en) | 2005-11-17 |
Family
ID=34832130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CZ2004/000052 WO2005108776A1 (en) | 2004-05-10 | 2004-08-31 | Cleaning and diagnostic equipment of fuel injection jets of internal combustion engines by means of a cleaning liquid, especially for workshop application |
Country Status (2)
| Country | Link |
|---|---|
| CZ (1) | CZ295593B6 (en) |
| WO (1) | WO2005108776A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482560B (en) * | 2009-01-20 | 2012-05-30 | 邱重任 | ELIAS plate washer employing cleaning head and residual liquid suction nozzle with flow passage pressure balancing structure |
| CN108506134A (en) * | 2018-05-10 | 2018-09-07 | 江苏康沃动力科技股份有限公司 | A kind of generator apparatus for testing fuel-injector and its detection method |
| US20220186700A1 (en) * | 2019-03-04 | 2022-06-16 | Tunap Gmbh & Co. Kg | Cleaning device with cleaning medium reception chamber for receiving cleaning medium after passing a device to be cleaned |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990001623A1 (en) * | 1988-08-05 | 1990-02-22 | Leonid Karnauchow | Fuel injection service apparatus |
| US5803983A (en) * | 1996-06-26 | 1998-09-08 | Lockheed Martin Energy Systems, Inc. | Method for removing solid particulate material from within liquid fuel injector assemblies |
| US5829460A (en) * | 1995-07-21 | 1998-11-03 | Acevedo; Juan R. | Cleaning electronically controlled fluid fuel injectors |
| US6000413A (en) * | 1998-09-01 | 1999-12-14 | Innova Electronics Corporation | Fuel injector cleaning system |
| WO2000063552A1 (en) * | 1999-04-20 | 2000-10-26 | Grigoli Kvaratskhelia | Device and method for cleaning of internal combustion engine fuel injector |
| US6234002B1 (en) * | 1997-09-05 | 2001-05-22 | David W. Sisney | Apparatus and methods for cleaning and testing fuel injectors |
-
2004
- 2004-05-10 CZ CZ2004603A patent/CZ295593B6/en not_active IP Right Cessation
- 2004-08-31 WO PCT/CZ2004/000052 patent/WO2005108776A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990001623A1 (en) * | 1988-08-05 | 1990-02-22 | Leonid Karnauchow | Fuel injection service apparatus |
| US5829460A (en) * | 1995-07-21 | 1998-11-03 | Acevedo; Juan R. | Cleaning electronically controlled fluid fuel injectors |
| US5803983A (en) * | 1996-06-26 | 1998-09-08 | Lockheed Martin Energy Systems, Inc. | Method for removing solid particulate material from within liquid fuel injector assemblies |
| US6234002B1 (en) * | 1997-09-05 | 2001-05-22 | David W. Sisney | Apparatus and methods for cleaning and testing fuel injectors |
| US6000413A (en) * | 1998-09-01 | 1999-12-14 | Innova Electronics Corporation | Fuel injector cleaning system |
| WO2000063552A1 (en) * | 1999-04-20 | 2000-10-26 | Grigoli Kvaratskhelia | Device and method for cleaning of internal combustion engine fuel injector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482560B (en) * | 2009-01-20 | 2012-05-30 | 邱重任 | ELIAS plate washer employing cleaning head and residual liquid suction nozzle with flow passage pressure balancing structure |
| CN108506134A (en) * | 2018-05-10 | 2018-09-07 | 江苏康沃动力科技股份有限公司 | A kind of generator apparatus for testing fuel-injector and its detection method |
| US20220186700A1 (en) * | 2019-03-04 | 2022-06-16 | Tunap Gmbh & Co. Kg | Cleaning device with cleaning medium reception chamber for receiving cleaning medium after passing a device to be cleaned |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ2004603A3 (en) | 2005-08-17 |
| CZ295593B6 (en) | 2005-08-17 |
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