KR20130128848A - Apparatus and method for manufacturing of gas injector using electrical characteristics - Google Patents
Apparatus and method for manufacturing of gas injector using electrical characteristics Download PDFInfo
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- KR20130128848A KR20130128848A KR20120052949A KR20120052949A KR20130128848A KR 20130128848 A KR20130128848 A KR 20130128848A KR 20120052949 A KR20120052949 A KR 20120052949A KR 20120052949 A KR20120052949 A KR 20120052949A KR 20130128848 A KR20130128848 A KR 20130128848A
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- South Korea
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- gas injector
- elastic spring
- push bar
- fixed push
- caulking
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Abstract
Description
The present invention relates to an apparatus for manufacturing a gas injector and a method for manufacturing the same, and more specifically, to collect mechanical waveform data of a current signal which is an electrical signal and a mechanical element that affects the injection (discharge) flow rate and electrical response performance of the gas injector. The present invention relates to a manufacturing apparatus for manufacturing a gas injector having the same response performance based on a load value of a plunger, an elastic spring, and a fixed push bar repeated by an external operating electric signal, and a method of manufacturing the same.
Recently, international crude oil prices have risen sharply, and as part of the energy diversification policy, the consumption of liquefied petroleum gas (LPG) and compressed natural gas (CNG) has increased. Is going on.
BACKGROUND ART Fuel supply systems for automobile engines that use gas such as LPG or CNG as fuel usually include storage containers for storing gas fuel, fuel supply lines extending from the storage containers to the engine, emergency shutoff valves, and regulators (decompression). And a fuel filter.
In particular, the apparatus further includes a gas injector for injecting gas fuel into the engine, and an electronic control unit (ECU) for controlling the gas injector.
However, a gas injector that injects gas fuel into an automobile engine has individual deviations after manufacture of the product due to the manufacturing environment, that is, the ambient temperature, the moisture content of the test fluid (air), the pulsation of the test fluid, and the mechanical assembly tolerance. For this reason, there is a problem in that the fuel injection deviation occurs according to the supply signal of the central control unit (ECU).
That is, in the case of gas injectors, it is very important to fix the tension of the elastic spring that controls the opening and closing of the nozzle during its manufacture. The manufacturing environment (ambient temperature, moisture content of the test fluid (air), pulsation of the test fluid, mechanical assembly tolerance) Etc.), the gas injectors to be manufactured have individual deviations, and thus there is a problem in that the fuel injectors are not uniformly made and have some deviations.
In addition, in the case of compressed natural gas (CNG), the use pressure is relatively high, and the engine injection demand is high, so the fuel injection variation is higher than that of LPG, which affects the engine output and fuel economy. It is true.
The present invention has been made in view of the above problems, by collecting the waveform data of the current signal which is an electrical signal to the mechanical elements that affect the injection (discharge) flow rate and electrical response performance of the gas injector, the external operating electrical signal It is an object of the present invention to provide a manufacturing apparatus and a manufacturing method for producing a gas injector having the same response performance based on the load value of the plunger, elastic spring, fixed push bar repeated by.
That is, the present invention provides an apparatus and a method for manufacturing a gas injector of uniform performance which measures the state of the mover by the signal of the current sensor to minimize the variation in the flow rate and response performance between products, which is a mechanical deviation. There is this.
Another object of the present invention is to exclude the conventional facility configuration in which the relationship between the response performance and the discharge flow rate for the gas injector is manufactured by the mechanical tolerance and the value of the discharge flow rate meter, and the distance between the mover and the injection nozzle is reduced. The present invention provides a manufacturing apparatus and a manufacturing method for producing a gas injector with high reliability by the relationship between the load and the load value of the elastic spring.
In addition, another object of the present invention, by utilizing the electrical characteristics of the gas injector coil, the change in the rated current is less than the test fluid (air) sensitive to external temperature environmental changes, the environmental conditions of the manufacturing equipment is alleviated, the equipment investment cost The present invention provides a device for manufacturing a gas injector and a method of manufacturing the same that reduce the cost and reduce the cost of maintenance and repair.
Gas injector manufacturing apparatus using the electrical characteristics according to the present invention for achieving the above object, the stator and the coil is installed on the main body formed with the terminal portion and the insertion hole, the movable nozzle and the first nozzle and the second nozzle in the nozzle housing In the manufacturing apparatus for manufacturing a gas injector by inserting the elastic spring and the fixed push bar into the insertion hole fixedly coupled to the main body with the elastic spring and the fixed push bar, it is possible to move up and down and the fixed push bar of the gas injector A caulking unit fixed to the main body; A seating part in which the elastic spring and the fixed push bar are sequentially inserted through the insertion hole, and the assembled gas injector is seated, and the elevating part is lifted up and down; The fixed push bar supplies current to the mover while pressing the elastic spring to measure and display the time taken for the maximum working distance of the mover as a current change amount, and when the designed value is reached, caulking for the fixed push bar is performed. And a main control panel.
Here, the caulking unit, the upper and lower adjustment gear handle; A screw having a predetermined length to move up and down according to the forward and reverse rotation of the vertical adjustment gear handle; A push fixing pin mounted at the tip of the screw and inserted into the insertion hole of the gas injector to press the fixed push bar to apply a load while compressing the elastic spring; A caulking bar installed opposite to the gas injector and horizontally moved according to a signal input to caulking the fixed push bar; Preferably, the caulking bar comprises a hydraulic generator for providing hydraulic pressure to move horizontally.
In addition, the seating portion, the elastic spring and the fixed push bar is sequentially inserted through the insertion port is a pedestal for mounting the gas injector is assembled; A piston for elevating the pedestal; It is preferably configured to include a cylinder for supplying pressure to the piston.
On the other hand, the method of manufacturing a gas injector using the gas injector manufacturing apparatus of the above configuration, (a) a stator and a coil is provided in the main body is formed with the terminal portion and the insertion hole, the mover, the first nozzle and the second nozzle in the nozzle housing Installing a nozzle, and assembling a gas injector by introducing an elastic spring and a fixed push bar into the insertion hole; (b) seating the assembled gas injector on the seat, and then raising the push pin to press the fixed push bar and the elastic spring so that the elastic spring receives the load; (c) supplying a current to the mover to measure and display the time taken for the maximum working distance of the mover as a current change amount, and when the designed value is reached, caulking for the fixed push bar is made.
In this case, in the step (c), by adjusting the adjustment handle gear of the caulking portion, it may further comprise the step of adjusting the load value received by the elastic spring.
According to the gas injector manufacturing apparatus using the electrical characteristics according to the present invention and a method for manufacturing the same, by collecting the waveform data of the current signal which is an electrical signal to a mechanical element that affects the injection (discharge) flow rate and electrical response performance of the gas injector The gas injector having the same response performance can be manufactured based on the load values of the plunger, the elastic spring, and the fixed push bar which are repeated by the external operating electric signal.
That is, according to the present invention, it is possible to manufacture a gas injector having a uniform performance of measuring the state of the mover by a signal of a current sensor to minimize the variation in flow rate and response performance between products, which are mechanical variations.
In addition, according to the present invention, the relationship between the response performance and the discharge flow rate for the gas injector is excluded from the conventional equipment configuration manufactured by the mechanical tolerance and the value of the discharge flow rate meter, and the distance between the mover and the injection nozzle is reduced. The relationship between and the load value of the elastic spring provides the effect of being able to manufacture a highly reliable gas injector.
In addition, by utilizing the electrical characteristics of the gas injector coil, the change in the rated current is less than the test fluid (air), which is sensitive to changes in the external temperature environment, and the environmental conditions of the manufacturing equipment are alleviated. The effect of reducing the cost of repair is also provided.
1 is a cross-sectional view of a gas injector manufactured by a gas injector manufacturing apparatus using electrical characteristics according to the present invention.
Figure 2 is a block diagram showing a manufacturing apparatus for manufacturing a gas injector in accordance with the present invention.
3 shows a graph of time-current characteristics displayed on the main control panel in FIG.
4 is a partially enlarged perspective view illustrating a state in which the fixed push bar of the gas injector is caulked by the manufacturing apparatus according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a cross-sectional view of a gas injector manufactured by a gas injector manufacturing apparatus using electrical characteristics according to the present invention.
As shown, the
The
In addition, the
On the other hand, a
Here, the fixed
FIG. 2 is a block diagram illustrating a
First, the
That is, the
Since the manufacture of such a
As such, the
That is, the
In the
In addition, the
In addition, the
The
On the other hand, the
Referring to the process of manufacturing the
First, the
In this state, a driving signal is applied to the
As such, when the
In this state, when the switch of the
That is, as the electricity is energized through the
Here, as shown in FIG. 3, the display window of the
For reference, the load of the
Therefore, when the magnetic force is generated in the
Of course, the load of the
As described above, the
Therefore, the main control valve applies this signal to the
Thus, the caulking pins 118 through the holes formed on both sides of the
The technical ideas described in the embodiments of the present invention as described above may be independently performed, or may be implemented in combination with each other. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. It is possible. Accordingly, the technical scope of the present invention should be determined by the appended claims.
10
14: insertion hole 16: terminal portion
18: fixed push bar 20: elastic spring
22: first nozzle 24: second nozzle
26: mover 28: nozzle housing
30: stator 32: coil
100: manufacturing apparatus 110: caulking unit
112: adjusting gear handle 114: screw
116: push pin 118: caulking pin
120: hydraulic generator 130: seating part
132: pedestal 134: piston
136: cylinder 140: main control panel
Claims (5)
A caulking unit capable of lifting up and down and fixedly coupling the fixed push bar of the gas injector to the main body;
A seating part in which the elastic spring and the fixed push bar are sequentially inserted through the insertion hole, and the assembled gas injector is seated, and the elevating part is lifted up and down;
The fixed push bar supplies current to the mover while pressing the elastic spring to measure and display the time taken for the maximum working distance of the mover as a current change amount, and when the designed value is reached, caulking for the fixed push bar is performed. Gas injector manufacturing apparatus using the electrical characteristics comprising a main control panel.
The caulking portion
Up and down adjustment gear handles;
A screw having a predetermined length to move up and down according to the forward and reverse rotation of the vertical adjustment gear handle;
A push fixing pin mounted at the tip of the screw and inserted into the insertion hole of the gas injector to press the fixed push bar to apply a load while compressing the elastic spring;
A caulking bar installed opposite to the gas injector and horizontally moved according to a signal input to caulking the fixed push bar;
Gas injector manufacturing apparatus using the electrical characteristics, characterized in that it comprises a hydraulic generator for providing a hydraulic pressure to move the caulking bar horizontally.
The seat (1)
A pedestal on which the elastic spring and the fixed push bar are sequentially inserted through the insertion hole to seat the gas injector assembled thereon;
A piston for elevating the pedestal;
Gas injector manufacturing apparatus using the electrical characteristics, characterized in that it comprises a cylinder for supplying pressure to the piston.
(a) A stator and a coil are installed in a main body having a terminal portion and an insertion hole, a mover, a first nozzle and a second nozzle are installed in a nozzle housing, and an elastic spring and a fixed push bar are inserted into the insertion hole to assemble a gas injector. Doing;
(b) seating the assembled gas injector on the seat, and then raising the push pin to press the fixed push bar and the elastic spring so that the elastic spring receives the load;
(c) supplying a current to the mover to measure and display the time taken for the maximum working distance of the mover as a current variation, and when the designed value is reached, caulking for the fixed push bar is achieved. Gas injector manufacturing method using.
In the step (c)
And adjusting the load value received by the elastic spring by adjusting the adjusting handle gear of the caulking portion.
Priority Applications (1)
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KR1020120052949A KR101341087B1 (en) | 2012-05-18 | 2012-05-18 | Apparatus and method for manufacturing of gas injector using electrical characteristics |
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KR1020120052949A KR101341087B1 (en) | 2012-05-18 | 2012-05-18 | Apparatus and method for manufacturing of gas injector using electrical characteristics |
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KR20130128848A true KR20130128848A (en) | 2013-11-27 |
KR101341087B1 KR101341087B1 (en) | 2013-12-13 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111721678A (en) * | 2020-07-06 | 2020-09-29 | 山东艾科达生物科技有限公司 | Lockable and bufferable sample adding nozzle seat |
EP4145295A1 (en) | 2013-10-18 | 2023-03-08 | Samsung Electronics Co., Ltd. | Memory compression method of electronic device and apparatus thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101567201B1 (en) | 2014-03-31 | 2015-11-09 | 현대자동차주식회사 | Device for correction an injector characteristic |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4607421A (en) | 1985-07-02 | 1986-08-26 | United Technologies Corporation | Method and apparatus for determining spring preloading in a fluid handling device |
JPH0783971B2 (en) * | 1986-06-10 | 1995-09-13 | マツダ株式会社 | Press-fit and caulking device |
JP4783208B2 (en) | 2006-05-31 | 2011-09-28 | 富士重工業株式会社 | Nut caulking device and caulking method |
KR100780388B1 (en) | 2007-09-05 | 2007-11-28 | 학교법인 부산정보대학 | Rotating type jig in order to disassemble and assemble high pressure injector |
-
2012
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4145295A1 (en) | 2013-10-18 | 2023-03-08 | Samsung Electronics Co., Ltd. | Memory compression method of electronic device and apparatus thereof |
CN111721678A (en) * | 2020-07-06 | 2020-09-29 | 山东艾科达生物科技有限公司 | Lockable and bufferable sample adding nozzle seat |
CN111721678B (en) * | 2020-07-06 | 2021-07-02 | 山东艾科达生物科技有限公司 | Lockable and bufferable sample adding nozzle seat |
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KR101341087B1 (en) | 2013-12-13 |
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