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 PDF

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Publication number
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
Prior art keywords
gas injector
elastic spring
push bar
fixed push
caulking
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KR20120052949A
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Korean (ko)
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KR101341087B1 (en
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조언정
김민수
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한국산업기술대학교산학협력단
주식회사 다임코
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Priority to KR1020120052949A priority Critical patent/KR101341087B1/en
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Abstract

The present invention relates to a device and method for manufacturing a gas injector using electrical properties, which manufacture the gas injector having the same response performance based on the load value of a plunger repeated by an external electrical signal, an elastic spring, and a fixed push bar by collecting mechanical elements, which influence the discharging rate of the gas injector and electrical response performance, and the waveform data of current signals which are electrical signals. The device and method minimize the flow rate deviation between products, which is the mechanical deviation, and the deviation of the response performance and manufacture the gas injector having uniform performance.

Description

Apparatus and method for manufacturing of gas injector using electrical characteristics

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 gas injector 10 manufactured by the manufacturing apparatus 100 according to the present invention includes a main body 12 forming an external shape.

Insertion hole 14 is formed in the longitudinal direction from the upper center of the main body 12, the insertion hole 14 is a passage through which gas is introduced, the elastic spring 20 and the fixed push bar 18 (Push) to be described later In order to fix the tension of the elastic spring 20 by pressing the bar) may be a passage through which the fixed push pin of the manufacturing apparatus 100 is drawn.

The first nozzle 22, the elastic spring 20, and the fixed push bar 18 are sequentially installed inside the insertion hole 14, and the first nozzle 22 and the elastic spring 20 are connected to an electrical signal. It is coupled in a wrapped state by the mover 26 (Plunger) to move up and down reciprocating movement, the mover 26 is to move up and down reciprocating movement in the nozzle housing 28 combined with the main body 12.

In addition, the fixed push bar 18 is coupled in a state surrounded by a stator 30 fixedly coupled to the body 12, wherein the fixed push bar 18 is optimal by the manufacturing apparatus 100 to be described later Caulking at the position is fixed to the main body 12, the load is applied to the elastic spring 20 to have a set tension.

On the other hand, a coil 32 is fitted around the distal end of the stator 30 and the mover 26, and one side of the main body 12 is provided with a terminal portion 16 for supplying an electrical signal. A second nozzle 24 for injecting gas into the engine is provided at the front end side of the nozzle housing 28 by opening and closing with the first nozzle 22.

Here, the fixed push bar 18 is caulked at an optimal position by the manufacturing apparatus 100 to be described later to form a state coupled to the main body 12, thereby applying a load to the elastic spring 20 fixed tension It is to be prevented to be pushed upward.

FIG. 2 is a block diagram illustrating a manufacturing apparatus 100 for manufacturing the gas injector 10 having the above-described configuration, and the configuration and operation of the manufacturing apparatus 100 and manufacturing the gas injector 10 using the same. The process of doing this is as follows.

First, the gas injector 10 is manufactured in a state in which the remaining components except the elastic spring 20 and the fixed push bar 18 are assembled.

That is, the stator 30 and the coil 32 are installed in the main body 12 having the terminal portion 16 and the insertion hole 14 formed therein, and the mover 26, the first nozzle 22, and the nozzle housing 28. By installing and assembling the second nozzle 24, the gas injector 10 in which the other components except the elastic spring 20 and the fixed push bar 18 are assembled is manufactured.

Since the manufacture of such a gas injector 10 can be manufactured by a conventionally known technique, the detailed description of the manufacturing process is omitted in the embodiment of the present invention.

As such, the gas injector 10 assembled in the state excluding the elastic spring 20 and the fixed push bar 18 is the elastic spring 20 and the fixed push bar 18 by the manufacturing apparatus 100 according to the present invention. ) Is fixed to the optimum position, thereby completing the manufacture.

That is, the elastic spring 20 is always fixed to an optimal position so as not to have a variation in tension due to various manufacturing environments (ambient temperature, moisture content of the test fluid (air), pulsation of the test fluid, mechanical assembly tolerance, etc.). It is to complete the manufacture.

In the manufacturing apparatus 100 of the gas injector 10 using the electrical characteristics according to the present invention, as shown in Figure 2, the lifting is made up and down, the fixed push bar 18 of the gas injector 10 is the main body ( And a caulking portion 110 fixedly coupled to 12).

In addition, the elastic spring 20 and the fixed push bar 18 is sequentially inserted through the insertion hole 14 is assembled to the gas injector 10 is seated, but also includes a seating portion 130 is raised and lowered up and down. .

In addition, the main control panel 140 measures and displays the time taken for the maximum working distance Stroke of the mover 26 as a current change amount, and when the designed value is reached, caulking for the fixed push bar 18 is performed. It includes.

The caulking unit 110 is attached to the top and bottom adjustment gear handle 112, a predetermined length of the screw 114 is raised and lowered in accordance with the forward and reverse rotation of the vertical adjustment gear handle 112, and the tip of the screw 114. And a push fixing pin 116 to be inserted into the insertion hole 14 of the assembled gas injector 10 to press the fixed push bar 18 to apply a load while compressing the elastic spring 20, and the gas It is installed to face both sides of the injector 10 comprises a caulking bar for caulking the fixed push bar 18 by moving horizontally in accordance with the signal input and a hydraulic generator 120 for providing hydraulic pressure to move the caulking bar horizontally do.

On the other hand, the seating portion 130, the elastic spring 20 and the fixed push bar 18 is sequentially inserted through the insertion hole 14, the pedestal 132 to which the gas injector 10 assembled is mounted, and It comprises a piston 134 for elevating the pedestal 132 and a cylinder 136 for supplying pressure to the piston 134.

Referring to the process of manufacturing the gas injector 10 using the gas injector 10 manufacturing apparatus 100 using the electrical characteristics using the above-described configuration as follows.

First, the stator 30 and the coil 32 are installed in the main body 12 having the terminal portion 16 and the insertion hole 14 formed therein, and the mover 26 and the first nozzle 22 and the nozzle housing 28. By installing and assembling the second nozzle 24, after manufacturing the gas injector 10 assembled with the rest of the components except the elastic spring 20 and the fixed push bar 18, the insertion hole of the gas injector 10 ( The elastic spring 20 and the fixed push bar 18 are sequentially introduced into the 14 and then seated on the pedestal 132 of the seating part 130.

In this state, a driving signal is applied to the cylinder 136 and the piston 134 so that the seating unit 130 is raised, whereby the gas injector 10 seated on the pedestal 132 of the seating unit 130 is caulking unit ( 110).

As such, when the seating part 130 is raised and the gas injector 10 is positioned at the caulking part 110, the push fixing pin 116 of the caulking part 110 is inserted into the gas injector 10. It is drawn through to press the fixed push bar 18, accordingly the elastic spring 20 is also compressed by the pressing of the fixed push bar 18 is subjected to a load.

In this state, when the switch of the main control panel 140 is operated to supply an electrical signal through the terminal portion 16, the mover 26 moves up and down in proportion to the load value received by the elastic spring 20. do.

That is, as the electricity is energized through the terminal portion 16, the movable element 26 reciprocates up and down by the current generated from the coil 32, and the movable element 26 is a load received by the elastic spring 20. Up and down reciprocating motion in proportion to the value.

Here, as shown in FIG. 3, the display window of the main control panel 140 displays the current consumption according to the position of the mover 26 as a current-time curve, wherein the load of the elastic spring 20 is represented. The distance it takes to overcome and reach the stator 30 is the maximum working distance STroke, and the arrival time is the response performance.

For reference, the load of the elastic spring 20 may be adjusted according to the forward and reverse rotation of the up and down adjustment gear handle 112 of the caulking unit 110. For example, when the top and bottom adjustment gear handle 112 is rotated in one direction to lower the screw 114 and the push fixing pin 116, the fixed push bar 18 is pressed to further compress the elastic spring 20. , The load of the elastic spring 20 is increased.

Therefore, when the magnetic force is generated in the coil 32 and the stator 30 is magnetized, the second nozzle 24 is delayed by the increased load value of the elastic spring 20 by the magnetic force of the stator 30. ) And the first nozzle 22 is opened.

Of course, the load of the elastic spring 20 may be reduced by the rotation of the vertical adjustment gear handle 112.

As described above, the main control panel 140 adjusts the arrival time of the mover 26 with respect to the stator 30 based on the measured time-current characteristic curve by rotating the upper and lower adjustment gear handle 112. It can be adjusted to the set design value.

Therefore, the main control valve applies this signal to the hydraulic cylinder 136 of the caulking unit 110 when the time taken for the maximum working distance Stroke of the mover 26 is measured as the current change amount and reaches the designed value. The operation is made, and the hydraulic piston 134 connected to the hydraulic cylinder 136 is operated so that the caulking pins 118 are advanced in the horizontal direction.

Thus, the caulking pins 118 through the holes formed on both sides of the main body 12 of the gas injector 10, as shown in Figure 4 to the fixed push bar 18 against the main body 12 and fixedly coupled When the elastic spring 20 is fixed to an optimized load value due to the fixing of the fixed push bar 18, the elastic spring 20 has a uniform tension.

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 gas injector 12 body
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)

The stator and the coil are installed in the main body in which the terminal part and the insertion hole are formed. In the manufacturing apparatus for manufacturing a gas injector by fixed coupling to
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 method of claim 1,
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 method of claim 1,
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.
In the method of manufacturing a gas injector using the gas injector manufacturing apparatus according to claim 1,
(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.
5. The method of claim 4,
In the step (c)
And adjusting the load value received by the elastic spring by adjusting the adjusting handle gear of the caulking portion.
KR1020120052949A 2012-05-18 2012-05-18 Apparatus and method for manufacturing of gas injector using electrical characteristics KR101341087B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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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)

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KR101567201B1 (en) 2014-03-31 2015-11-09 현대자동차주식회사 Device for correction an injector characteristic

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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

Cited By (3)

* Cited by examiner, † Cited by third party
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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