KR101008743B1 - Apparatus and method capable of easily retesting fuel injection valve of diesel engine for vessel - Google Patents
Apparatus and method capable of easily retesting fuel injection valve of diesel engine for vessel Download PDFInfo
- Publication number
- KR101008743B1 KR101008743B1 KR1020100128842A KR20100128842A KR101008743B1 KR 101008743 B1 KR101008743 B1 KR 101008743B1 KR 1020100128842 A KR1020100128842 A KR 1020100128842A KR 20100128842 A KR20100128842 A KR 20100128842A KR 101008743 B1 KR101008743 B1 KR 101008743B1
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- Prior art keywords
- oil
- flow
- test
- fuel injection
- injection valve
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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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/001—Measuring fuel delivery of a fuel injector
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to a test apparatus and a method for easily and repeatedly measuring a fuel injection valve of a marine diesel engine. According to the present invention, it is installed between an oil pump and an oil outlet, and according to opening / closing of a drain passage. Oil flow diverting means operated to divert the flow of the test oil to the oil tank or oil outlet, and compressed between the air inlet and the oil flow diverting means to enter the oil flow diverting means to open / close the drain passage. Air flow control means for controlling the flow of air, and a re-measuring switch installed to operate the air flow control means at the time of re-measurement, at the same time as the injection pressure measurement when the test oil is injected from the outlet of the fuel The drain passage is automatically opened to allow the test oil to flow into the oil tank. By repeatedly operating the remeasurement switch, the drain passage is closed, allowing the test oil to flow immediately back to the oil outlet, making it possible to easily and quickly repeat the fuel injection valve.
Description
The present invention relates to a test apparatus and a test method for easily and repeatedly measuring a fuel injection valve of a marine diesel engine. More particularly, the injection pressure of the fuel injection valve can be re-measured very conveniently and quickly. In addition, the present invention relates to a test apparatus and a test method for easily repeating and measuring a fuel injection valve of a marine diesel engine, which makes it easy to determine whether the fuel injection valve is suitably determined through repeated remeasurement.
[Reference 1] Domestic Patent No. 10-0898942, Publication Date 2005.04.25.
[Document 2] Domestic Utility Model Model No. 20-384456, Publication Date 2005.5.16.
In general, the fuel injection valve injection pressure of a marine diesel engine determines the efficiency and life of the engine. Therefore, in the case of marine diesel engines, the injection pressure of the fuel injection valve must be properly maintained.
In particular, in the case of a large marine diesel engine, the fuel consumption and engine life of the engine are determined by the injection pressure of the fuel injection valve as a large diesel engine. In addition, since the amount of soot generated that causes marine pollution is determined, in order to control and maintain the optimum injection pressure, a test apparatus for the fuel injection valve is required.
The fuel injection valve test apparatus checks whether the oil injection of the fuel injection valve is performed at a given rated pressure and installs a normal fuel injection valve in the engine to prevent engine malfunction or safety accident caused by the use of a defective fuel injection valve in advance. Contribute to prevention.
The operation procedure of the test apparatus of
① Set the operation switch to reset mode.
(2) With the relief valve (5) closed, open the pressure regulating valve (6) so that the test oil (4) of the oil tank (7) is filled in the flow path from the oil pump (3) to the fuel injection valve (2). To be in a state. At this time, the pressure value of the
③ Adjust the pressure regulating valve (6) so that the pressure value of the pneumatic gauge (8) is 150 BAR.
(4) Operate the full stroke valve (9) so that the piston in the oil pump (3) is at top dead center.
(5) After setting the operation switch to the injection pressure measuring mode, gradually increase the pressure through the pressure control valve (6) until the pressure of the fuel injection valve (2) reaches the injection pressure.
(6) The pressure at the moment when the test oil (4) is injected on the outlet side of the fuel injection valve (2) is displayed on the injection pressure gauge (10), and the supply of compressed air to the oil pump (3) is stopped.
⑦ When the oil pump 3 is stopped and the injection pressure of the
On the other hand, the injection pressure of the
However, in the above-described method of testing the fuel injection valve for the diesel engine, in order to measure the injection pressure of the
This is because the test apparatus of
Therefore, in the test method as described in
The test apparatus with the hydraulic circuit diagram shown in FIG. 2 of
Therefore, the
The fuel injection valve test of
① Close the pressure relief valve (29).
② The user continuously presses the
③ The user operates the shared
④ While the user continuously presses the
⑤ When the user keeps checking the pressure value of the
⑥ Open the pressure relief valve (29), the pressure remaining in the test oil (23) is released through the auxiliary oil pipe (31) and initialized to the atmospheric pressure state, the test is completed once.
In the fuel injection valve test apparatus of
In addition, since it is a manual operation by visual identification, the
In addition, although
The present invention has been invented to solve the above problems at a glance, and an object of the present invention is to provide a test apparatus and a test method capable of repeatedly and repeatedly measuring the fuel injection valve injection pressure of a marine diesel engine. .
In addition, the present invention, while the injection pressure of the fuel injection valve is measured, while maintaining the supply of the test oil and compressed air, the test oil is automatically discharged to the oil tank, and the fuel injection valve is to be re-measured multiple times. In this case, the test oil is immediately resupplied to the fuel injection valve by simply operating the re-measurement switch as many times as needed, without any additional procedure, and re-measure the injection pressure of the fuel injection valve as quickly as desired. It is an object of the present invention to provide a test apparatus and a method capable of doing so.
According to the present invention for achieving the above object, the fuel injection valve is operated by the compressed air flowing from the
The oil flow switching means 109 is air operated to open or close the
On the other hand, the oil flow switching means 109 includes an
In addition, according to the present invention, the step of operating the oil pump 105 by the compressed air flowing from the air inlet 102 (step 1), the test of the oil tank 101 by the operation of the oil pump 105 The step of pumping the oil 106 to the fuel injection valve 104 mounted on the oil outlet 103 via the oil flow switching means 109 (step 2), the compressed air flowing from the air inlet 102 Supplying a flow to the oil flow switching means 109 through an air flow control means 110 (step 3), increasing the pressure of the test oil 106 pumped by the oil pump 105 ( Step 4), when the test oil 106 is injected from the outlet side of the fuel injection valve 104, at the same time as the injection pressure measurement, the air flow control means 110 is compressed from the air inlet 102 Drain of the oil flow switching means 109 by automatically controlling the flow of air Open the passage 118 and allow the test oil 106 to flow into the oil tank 101 (step 5), and operate the re-measuring switch 115 to allow the air flow control means 110 to provide an air inlet ( Controlling the flow of the compressed air flowing from 102, closing the drain passage 118 of the oil flow switching means 109 and allowing the test oil 106 to flow into the oil outlet 103 (step 6). A test method is provided to easily and repeatedly measure the fuel injection valve of a marine diesel engine including a).
After the first to sixth steps, if the
According to the present invention, at the same time as the test oil is injected from the fuel injection valve, the test oil is automatically discharged to the oil tank side, and the compressed air is continuously supplied to the oil pump to continuously supply the test oil. For this reason, the remeasurement of the fuel injection valve is performed very quickly each time the oil flow is switched to the fuel injection valve side by operating the remeasurement switch once.
For example, assuming that the fuel injection valve is re-measured five times, the test method of
In particular, in the case of
However, in the present invention, after the test oil is injected, the flow of the test oil is automatically converted and discharged into the oil tank, the oil pump continues to operate even after the test oil is injected, and the test oil is immediately injected by the operation of the recalibration switch. The operation of the device is very simple since it is switched to the valve side and quickly reaches the injection pressure.
Therefore, according to the present invention, the injection pressure of the fuel injection valve can be repeatedly measured very conveniently and quickly. Through such repeated measurement, the suitability of the fuel injection valve can be determined very conveniently.
1 is a hydraulic circuit diagram of a conventional test apparatus.
2 is a hydraulic circuit diagram of another conventional test apparatus.
3 is a hydraulic circuit diagram of the test apparatus of the present invention.
Figure 4 is a cross-sectional view schematically showing one embodiment of the oil flow switching means of the test apparatus of the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 3 is a hydraulic circuit diagram schematically showing a fuel injection valve test apparatus of the marine diesel engine of the present invention.
In the
The
A
Meanwhile, between the
In addition, an air flow control means 110 is installed between the
The
If the user operates the
The
On the other hand, between the
4 is a cross-sectional view schematically showing one embodiment of the oil flow switching means 109 of the present invention.
The oil flow switching means 109 is an
In FIG. 4,
Meanwhile, in FIG. 4, a check
The lower side of the valve valve is provided with an
The
On the other hand, the compressed air pipeline from the air flow control means 110 of Figure 3 to the inside of the
The
If the pressure of the
In the case where the
At this time, the
When the compressed air line is composed of two channels, a pin (not shown) is installed at the lower end of the piston (125). When compressed air flows into one channel, the pin (not shown) rotates by pneumatic and the piston When the air rises and the compressed air flows into the other channel, the pin rotates in the opposite direction to lower the piston.
Compressed air passage from the air flow control means 110 to the interior of the
On the other hand, the flow of compressed air flowing into the
At this time, until the
When the
When the
On the other hand, in the embodiment of Figure 4, the
In order to completely block the flow of the
The
At this time, the hydraulic pressure of the test oil drops instantaneously, and the injection pressure is measured by the injection pressure gauge 113 (in the case of the embodiment of FIG. 3) installed near the
At this time, since the
When the
At this time, since the
Therefore, immediately after the injection pressure of the
As a result, the
Next, the test method for measuring the injection pressure of the
First, the
The flow path from the
As described above, while adjusting the
By operating the
On the other hand, the compressed air is also introduced into the air flow control means 110 from the
Subsequently, the
At this time, when the outlet side of the
If the
At this time, when the fuel injection valve is to be re-measured again after the first to sixth steps, the
When the remeasurement of the desired number of times is finished, the
As described above, the present invention can proceed very conveniently and quickly when repeatedly measuring the injection pressure in order to accurately determine whether there is an abnormality and repair of the
101: oil tank 102: air inlet
103: oil outlet 104: fuel injection valve
105: oil pump 106: test oil
107: pressure regulating valve 108: relief valve
109: oil flow switching means 110: air flow control means
111: oil filter 112: pneumatic gauge
113: injection pressure gauge 114: air flow inlet
115: remeasurement switch 116: oil inlet
117: oil outlet 118: drain passage
119: injection pressure detection means 120: check valve accommodation
121: check ball guide 122: check ball
123: elastic member 124: air cylinder
125: piston 100: test device
Claims (5)
A pressure regulating valve 107 installed between the air inlet 102 and the oil pump 105 to adjust the pressure of the test oil 106 pumped by the oil pump 105;
It is installed between the oil pump 105 and the oil outlet 103, and provided with a drain passage 118, the flow of the test oil 106 in accordance with the opening / closing of the drain passage 118 oil tank ( Oil flow diverting means 109 operative to switch to 101 or to oil outlet 103;
Installed between the air inlet 102 and the oil flow switching means 109, to control the flow of compressed air flowing into the oil flow switching means 109 to open / close the drain passage 118 Air flow control means 110, and
Re-measurement switch 115 is installed to operate the air flow control means 110 for re-measurement of the fuel injection valve 104,
When the test oil is injected from the outlet of the fuel injection valve 104, the air flow control means 110, the drain passage 118 is open at the same time the test oil 106 is the oil tank 101 To control the flow of compressed air flowing into the oil flow switching means 109,
The remeasurement switch 115 controls the operation of the air flow control means 110 at the time of remeasurement of the fuel injection valve 104 so that the drain passage 118 is closed and the test oil 106 is discharged from the oil outlet. A test apparatus for easily and repeatedly measuring the fuel injection valve of the marine diesel engine, characterized in that for controlling the flow of compressed air flowing into the oil flow control means (109) to flow to (103).
The oil flow switching means 109,
And an air cylinder 124 operative to open or close the drain passage 118 of the oil flow switching means 109 according to the flow of compressed air controlled by the air flow control means 110. Test equipment to easily and repeatedly measure the fuel injection valve of the marine diesel engine.
The oil flow switching means 109 includes an oil outlet 117 through which the test oil 106 flows out,
The oil flow switching means 109 closes the oil outlet 117 when the drain passage 118 is opened, and opens the oil outlet 117 when the drain passage 118 is closed. A test apparatus for easily and repeatedly measuring the fuel injection valve of the marine diesel engine, characterized in that it further comprises an operating air cylinder (124).
By the operation of the oil pump 105, the step of pumping the test oil 106 of the oil tank 101 to the fuel injection valve 104 mounted to the oil outlet 103 via the oil flow switching means 109 (Step 2),
Supplying a flow of compressed air flowing from the air inlet 102 to the oil flow switching means 109 through an air flow control means 110 (step 3),
Increasing the pressure of the test oil 106 pumped by the oil pump 105 (step 4),
When the test oil 106 is injected at the outlet side of the fuel injection valve 104, the air flow control means 110 at the same time as the injection pressure measurement, the flow of compressed air flowing from the air inlet 102 Opening the drain passage 118 of the oil flow switching means 109 by automatic control and allowing the test oil 106 to flow into the oil tank 101 (step 5), and
The air flow control means 110 controls the flow of compressed air flowing from the air inlet 102 by operating the re-measurement switch 115, thereby opening the drain passage 118 of the oil flow switching means 109. A method of testing in which the fuel injection valve of a marine diesel engine can be easily and repeatedly measured, comprising closing (6 steps) the test oil (106) flowing into the oil outlet (103).
When the fuel injection valve 104 is to be remeasured repeatedly after the first to sixth steps, the fuel of the marine diesel engine is immediately remeasured by repeating only the sixth step. Test method to easily repeat the injection valve.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180026577.4A CN102939457B (en) | 2010-05-28 | 2011-04-06 | Test device and test method whereby the fuel injection valve of marine diesel engine can easily be repeatedly measured |
PCT/KR2011/002398 WO2011149184A1 (en) | 2010-05-28 | 2011-04-06 | Test device and test method whereby the fuel injection valve of a marine diesel engine can easily be repeatedly measured |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR20100050088 | 2010-05-28 | ||
KR1020100050088 | 2010-05-28 |
Publications (1)
Publication Number | Publication Date |
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KR101008743B1 true KR101008743B1 (en) | 2011-01-14 |
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KR1020100128842A KR101008743B1 (en) | 2010-05-28 | 2010-12-16 | Apparatus and method capable of easily retesting fuel injection valve of diesel engine for vessel |
Country Status (3)
Country | Link |
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KR (1) | KR101008743B1 (en) |
CN (1) | CN102939457B (en) |
WO (1) | WO2011149184A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101314585B1 (en) | 2012-04-04 | 2013-10-07 | 주식회사 리테크 | Test eqipment of fuel ejection valve for ship diesel engine |
CN106762310A (en) * | 2017-03-14 | 2017-05-31 | 北京科领动力科技有限公司 | The fuel oil injection experimental system for simulating of continuously adjustable pressure and temperature |
KR101832944B1 (en) | 2017-09-26 | 2018-02-28 | 김영목 | Apparatus for displaying pressure used in test equipment of fuel injection valve for ship engine |
Families Citing this family (3)
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CN106017898A (en) * | 2016-07-04 | 2016-10-12 | 重庆重客汽车电子有限公司 | High-precision performance tester for vehicle fuel gas injection valve |
ES2683089B1 (en) * | 2017-03-23 | 2019-07-05 | Univ Burgos | DEVICE FOR TESTING COMPONENTS SUBJECT TO HIGH PRESSURE IN A TRACTION-COMPRESSION MACHINE |
CN108661837A (en) * | 2017-03-30 | 2018-10-16 | 中国船舶重工集团公司第七研究所 | Oil supply system |
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KR200384456Y1 (en) | 2005-02-18 | 2005-05-16 | 전영근 | A testing apparatus of fuel injectiON valve for diesel engine |
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US4041778A (en) * | 1976-09-08 | 1977-08-16 | Fuji Shoten Co. Ltd. | Fuel injection valve testing apparatus |
JP2806019B2 (en) * | 1990-09-13 | 1998-09-30 | 株式会社デンソー | Injection amount measuring device |
US6879903B2 (en) * | 2002-12-27 | 2005-04-12 | Caterpillar Inc | Method for estimating fuel injector performance |
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2010
- 2010-12-16 KR KR1020100128842A patent/KR101008743B1/en active IP Right Grant
-
2011
- 2011-04-06 WO PCT/KR2011/002398 patent/WO2011149184A1/en active Application Filing
- 2011-04-06 CN CN201180026577.4A patent/CN102939457B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20030068993A (en) * | 2002-02-19 | 2003-08-25 | 박희원 | A method for preparing stock compositions that can prevent and treat dementia and obesity. |
KR20030084456A (en) * | 2002-04-26 | 2003-11-01 | (주) 트레이스 | A Car Hands Free with Voice Recognition and Voice Comp osition, Available for Voice Dialing and Short Message Reading |
KR100898942B1 (en) | 2003-10-20 | 2009-05-25 | 아이오피 마린 에이/에스 | Method of testing a fuel injection valve for a diesel engine |
KR200368993Y1 (en) | 2004-09-08 | 2004-12-03 | 전영근 | A fuel valve testing apparatus |
KR200384456Y1 (en) | 2005-02-18 | 2005-05-16 | 전영근 | A testing apparatus of fuel injectiON valve for diesel engine |
KR200399004Y1 (en) | 2005-07-29 | 2005-10-18 | 진성근 | a device for measuring pressure |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101314585B1 (en) | 2012-04-04 | 2013-10-07 | 주식회사 리테크 | Test eqipment of fuel ejection valve for ship diesel engine |
CN106762310A (en) * | 2017-03-14 | 2017-05-31 | 北京科领动力科技有限公司 | The fuel oil injection experimental system for simulating of continuously adjustable pressure and temperature |
KR101832944B1 (en) | 2017-09-26 | 2018-02-28 | 김영목 | Apparatus for displaying pressure used in test equipment of fuel injection valve for ship engine |
Also Published As
Publication number | Publication date |
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WO2011149184A1 (en) | 2011-12-01 |
CN102939457B (en) | 2015-04-22 |
CN102939457A (en) | 2013-02-20 |
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