• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to an adjustment device, and more particularly to an LPG automobile vaporizer adjusting device that can adjust the characteristics of the vaporizer when the parts of the LPG automobile vapor riser replacement, consumables such as diaphragm, spring, etc. of the vaporizer It is to provide LPG automobile vaporizer adjusting device that can prevent excess fuel consumption and gas leakage by adjusting characteristics of vaporizer after parts replacement. In order to achieve the above object, the present invention provides a compressor (2) connected to a first line (1) to supply a pneumatic pressure, such as a supply pressure from an LPG gas cylinder, to the fuel inlet (53) of the vaporizer, and the compressor (2). And a pressure regulating valve (4) installed in the first line (1) to intermittently block the pneumatic pressure supplied from the compressor (2) and the supply amount, and to regulate the supply amount. And a vacuum pump 6 connected to the second line 5 so as to apply a vacuum pressure equal to the negative pressure at the vehicle low speed and idling at the negative pressure inlet 60, and the vacuum pump 6 and the negative pressure inlet ( A vacuum tank 7 provided between the first and second lines 1, 5, and a pressure gauge 8 connected to the low-speed fuel outlet 61, and the vacuum pressure and the positive pressure. It is characterized by consisting of a pressure gauge (9, 10) that can be checked respectively.
    公开号:KR20000060058A
    申请号:KR1019990008085
    申请日:1999-03-11
    公开日:2000-10-16
    发明作者:신희영
    申请人:신희영；
    IPC主号:
    专利说明:

    Vaporizer adjusting device for liquefied petroleum gas automobiles {Adusting device of vaporizer for LPG automobile}
    The present invention relates to an adjusting device, and more particularly, to a liquefied petroleum gas automobile vaporizer adjusting device that can adjust the characteristics of the vaporizer when the parts of the LPG automotive vapor riser is replaced.
    In general, a LPG vehicle is equipped with a vaporizer for pressure reduction, vaporization, pressure control of the LPG gas.
    As shown in FIG. 3, the main body 52 having the primary and secondary decompression chambers 50 and 51 divided therein, and the fuel inlet 53 provided to supply fuel to the primary decompression chamber 50 described above. And a primary valve 55 connected to the primary diaphragm 54 so as to intermittently shut off the fuel introduced from the fuel inlet 53, and installed to penetrate the primary and secondary sides as described above. A negative pressure is applied to the low speed lock valve 58 and the low speed lock diaphragm 59 connected to the vacuum lock diaphragm 56 and the vacuum lock spring 57 provided in the seal 51, and the low speed lock valve 58 described above. A negative pressure inlet (60), a low speed fuel outlet (61) for supplying fuel to a gas mixer (not shown) at low and idling speeds through the low speed lock valve (58), and the vacuum lock diaphragm (56). 2 and a secondary valve 62 having one side connected to the low-speed lock diaphragm 59 and the secondary decompression chamber 51 described above. Consists of diamond Prem 62 and the secondary pressure chamber (51) installed connecting the main fuel outlet 63 to.
    In addition, the primary regulator spring 64 is connected to the externally exposed bolt 65 to adjust the primary diaphragm 54, and the secondary regulator to adjust the secondary valve 62. The spring 64 is provided, and the idle adjustment screw 66 is provided in the low-speed fuel outlet 61 side.
    In the vaporizer as described above, the negative pressure at the idling and the low-speed rotation through the negative pressure inlet 60 at the start of the engine acts on the low speed lock diaphragm 59, which causes the low speed lock diaphragm 59 to the left in the drawing. As it is pulled in, the LPG gas is supplied to the low speed fuel outlet 61.
    In addition, when the vehicle speed reaches a normal speed, the negative pressure becomes higher, and fuel is also introduced into the secondary decompression chamber 51 so that a larger amount of fuel is supplied to the gas mixer (not shown) through the main fuel outlet 63. do.
    That is, the depressurization, vaporization, and pressure adjustment made in the vaporizer are performed by a plurality of diaphragms and springs installed to adjust the primary and secondary valves 55 and 62. The elasticity of the diaphragm and spring must be adjusted very precisely.
    Of course, the diaphragm is usually made of a rubber material, so it must be replaced after a certain period of time, and the spring has to be replaced after a period of time by vibrating continuously.
    However, when the diaphragm and the spring are replaced after using the vaporizer for a certain period of time as described above, when a new one made of a specification suitable for the vaporizer is mounted and used, the characteristics of the operating member such as the internal primary and secondary valves, etc. This is different, and this causes problems such as LPG gas leakage, power drop, and excessive fuel consumption.
    In other words, when manufacturing the first vaporizer, after adjusting the diaphragm and spring, it adjusts it to the characteristics of the vaporizer, but when replacing the above parts, there is no separate adjusting device. There is a problem with change.
    Accordingly, an object of the present invention is to solve the above problems, and after the replacement of consumable parts, such as diaphragm, spring, etc. of the vaporizer, the characteristics of the vaporizer are adjusted to liquefy to prevent excessive fuel consumption and gas leakage. An object of the present invention is to provide an oil vaporizer vaporizer adjusting device.
    In order to achieve the above object, the present invention provides a compressor connected to a first line to supply a pneumatic pressure, such as a supply pressure from an LPG gas cylinder, to a fuel inlet of a vaporizer, a constant pressure tank provided between the compressor and the fuel inlet, A pressure control valve installed in the first line to intermittently shut off the pneumatic pressure supplied from the compressor and regulate the supply amount, and a vacuum connected to the negative pressure inlet to apply the vacuum pressure such as the negative pressure at the low speed and the idle speed of the vehicle to the second line. A pump, a vacuum tank provided between the vacuum pump and the negative pressure inlet, a pressure gauge connected to the low speed fuel outlet, and a pressure gauge installed at the first and second lines to check vacuum pressure and static pressure, respectively. It is characterized by the configuration.
    1 is a schematic diagram showing an apparatus for adjusting a vaporizer for LPG automobile according to the present invention;
    2 is a flowchart showing a vaporizer adjusting chamber for LPG vehicle according to the present invention;
    3 is a cross-sectional view showing a conventional LPG automobile vaporizer.
    ＊ Explanation of symbols on main parts of drawing
    1: first line 2: compressor
    3: constant pressure tank 4: pressure regulating valve
    5: second line 6: vacuum pump
    7: vacuum tank 8, 9, 10: pressure gauge
    11: first switch 12: second switch
    13: main switch 14: first solenoid valve
    15: second solenoid valve
    1 is a schematic diagram showing a vaporizer adjusting device for an LPG vehicle according to the present invention, in which a compressor (2) connected to a first line (1) to supply a pneumatic pressure, such as a supply pressure in an LPG gas cylinder, to a fuel inlet 53 of a vaporizer. ), The first line (1) to intermittently shut off the pneumatic pressure supplied from the compressor (2) and the fuel inlet (53), and the pneumatic pressure supplied from the compressor (2) And a vacuum pump 6 connected to the second line 5 so as to apply a vacuum pressure, such as a negative pressure at low speed and idling speed of the vehicle, to the negative pressure inlet 60. It consists of the vacuum tank 7 provided between the vacuum pump 6 and the negative pressure inlet 60, and the pressure gauge 8 connected to the low speed fuel outlet 61 mentioned above.
    In addition, the first and second lines 1 and 5 are provided with pressure gauges 9 and 10 so as to check the vacuum pressure and the static pressure, respectively, and the first and second switches 11 to intermittently cut off the supply of pneumatic pressure. , 12) and first and second solenoid valves 14 and 15 operated by the main switch 13 are provided, respectively.
    That is, after replacing the consumable parts of the vaporizer, the vaporizer is formed at a low speed or idling state of the vehicle, and the fuel supply pressure at low speed or idling (primary decompression chamber) while looking at the pressure gauge 8 installed at the low speed fuel outlet 61. Pressure) through the idle adjustment screw 66 to adjust the vaporizer in an optimal state.
    Referring to Figure 2 illustrates the effect of the present invention as described above, after the operator replaces the diaphragm, spring, etc. of the vaporizer, the first line 1 of the inspection apparatus is connected to the fuel inlet 53 of the vaporizer. In addition, the second line 5 is connected to the negative pressure inlet 60.
    After connecting the first and second lines 1 and 5 to the fuel inlet 53 and the negative pressure inlet 60, the pressure gauge 8 is installed at the low speed fuel outlet 61. Upon completion, the compressor 2 and the vacuum pump 6 are operated.
    The pressure generated here during the operation of the compressor 2 should be 2.3Kgf / cm 2, which is the supply pressure in the LPG barrel loaded on the vehicle, and is adjusted by adjusting the pressure regulating valve 4.
    In addition, the vacuum pressure formed in the vacuum pump 6 is adjusted to see the pressure gauge (9) to be 150mmHg and then supplied to the second line (5).
    When the pressure supplied from the compressor 2 to the first line 1 is 2.3 Kgf / cm 2 and the pressure supplied from the vacuum pump 6 to the second line 5 is 150 mmHg, the main switch 13 is turned on. After ON, the first and second switches 11 and 12 are turned on to open the first and second solenoid valves 14 and 15.
    When the first and second solenoid valves 14 and 15 are opened, the positive pressure and the vacuum pressure are supplied to the vaporizer through the first and second lines 1 and 5, and the primary pressure reducing chamber is supplied to the pressure gauge 8 during the supply. Check that the pressure is 0.3 ± 0.025Kgf / ㎠.
    When the pressure is less than or exceeded, the pressure inside the primary pressure reducing chamber 50 is adjusted to 0.3 ± 0.025 Kgf / cm 2 by adjusting the primary valve 55 with the primary regulator bolt 65.
    When the internal pressure control of the primary decompression chamber 50 is completed, an optimum decompression state suitable for all the loads when the vehicle is driven becomes stable fuel supply to the secondary decompression chamber 51.
    In this state, while adjusting the pressure in the secondary pressure reducing chamber while looking at the pressure gauge 10 installed in the first line 1, the idle adjustment screw so that the pressure of the pressure gauge 10 becomes 1.7 ± 0.1 Kgf / cm 2 ( 66).
    As described above, when the indirect measurement pressure in the secondary decompression chamber 51, which is the low-speed fuel outlet 61, reaches 1.7 ± 0.1 Kgf / cm 2, the air-fuel ratio when the vehicle is mounted is close to bar. It's done.
    Here, in order to inspect the gas leakage after the above-mentioned parts replacement, the second switch 13 is turned off and the second line 5 is disconnected from the negative pressure inlet 60, and the main switch 13 and the first switch. When (12) is turned off, the inside of the vaporizer is completely cut off from the outside. When the pressure drop value is 0.05 Kgf / cm 2 or less per minute while viewing the pressure gauge 8 in the above state, it is determined that the sealed state of each part of the inside is normal. .
    As described above, the present invention adjusts the characteristics according to the newly installed diaphragm and spring to suit the characteristics of the vaporizer when replacing the parts of the LPG automobile vaporizer, thereby preventing defects such as excessive gas leakage, CO generation, and uneven mixing ratio. There is an advantage to avoid.
    权利要求:
    Claims (6)
    [1" claim-type="Currently amended] Intermittently blocking the compressor connected to the first line to supply the fuel inlet of the vaporizer, such as the supply pressure from the LPG gas cylinder, a static pressure tank installed between the compressor and the fuel inlet, and the pneumatic pressure supplied from the compressor. In addition, the pressure control valve installed in the first line to adjust the supply amount, the vacuum pump connected to the second line to apply the vacuum pressure, such as the negative pressure at the vehicle low speed and idling to the negative pressure inlet, the vacuum pump and the negative pressure inlet Liquefied petroleum gas, comprising: a vacuum tank disposed between the pressure gauge connected to the low-speed fuel outlet; and a pressure gauge installed at the first and second lines to check vacuum pressure and static pressure, respectively. Automotive vaporizer adjuster.
    [2" claim-type="Currently amended] The apparatus for adjusting liquefied petroleum gas automobiles according to claim 1, further comprising first and second solenoid valves installed to intermittently block the pneumatic pressure passing through the first and second lines.
    [3" claim-type="Currently amended] The vaporizer adjusting apparatus for liquefied petroleum gas automobiles according to claim 1 or 2, wherein the pressure supplied to the fuel inlet is 2.3 ± 0.2 Kgf / cm 2.
    [4" claim-type="Currently amended] The vaporizer adjusting device for liquefied petroleum gas automobile according to claim 1 or 2, wherein the vacuum pressure supplied to the negative pressure inlet is 150 mmHg / cm 2.
    [5" claim-type="Currently amended] The vaporizer adjusting device for a liquefied petroleum gas vehicle according to claim 1 or 2, wherein the pressure inside the primary decompression chamber is adjusted to be 0.3 ± 0.025 Kgf / cm 2.
    [6" claim-type="Currently amended] The vaporizer adjusting apparatus for liquefied petroleum gas automobiles according to claim 1 or 2, wherein the pressure in the secondary decompression chamber is adjusted with an idling adjustment screw so as to be 1.7 ± 0.1 Kgf / cm 2.
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    同族专利:
    公开号 | 公开日
    KR100310019B1|2001-11-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1999-03-11|Application filed by 신희영
    1999-03-11|Priority to KR1019990008085A
    2000-10-16|Publication of KR20000060058A
    2001-11-02|Application granted
    2001-11-02|Publication of KR100310019B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019990008085A|KR100310019B1|1999-03-11|1999-03-11|Adusting device of vaporizer for LPG automobile|
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