KR20090109901A - Combined fuel gage and over charge preventing device for lpg bombe - Google Patents

Abstract

PURPOSE: A fuel gage integrated overcharge prevention device for a LPG bombe is provided to save a manufacturing cost by reducing parts and simplifying the structure. CONSTITUTION: A fuel gage integrated overcharge prevention device for a LPG bombe is integrated with a gage unit(30) by moving a float(41) up and down according to level change of LPG. The float is located inside a body of the LPG bombe. An engagement member(70) is connected to the gauge unit to interrupt an overcharging prevention unit(50). The overcharge prevention unit is interrupted with up and down movement of an overcharge prevention unit float blocking the fuel injection when the LPG is overcharged.

Description

Fuel gauge integrated overcharge prevention device of LPI Bombe {COMBINED FUEL GAGE AND OVER CHARGE PREVENTING DEVICE FOR LPG BOMBE}

Exemplary embodiments of the present invention relate to an Elpigi bomb, and more particularly, to an fuel gauge integrated overcharge protection device of an Elpigi bomb, which is an integral part of the fuel gauge structure and the overcharge prevention structure.

In general, liquefied petroleum gas (LPG: hereinafter referred to as “elpji” for convenience) has a long combustion life because it has a high combustion efficiency, an even operating noise of the engine, and does not easily damage the engine oil. However, due to low air pollution, it is being used as a fuel for automobiles.

Such a vehicle using the Elpji fuel is provided with a cylinder body that can accommodate the liquid Elji fuel.

The bomb body is provided with a fuel gauge unit that can measure the level of the LLP fuel, and an overcharge preventing unit that can prevent the overcharge of the LLP fuel.

Here, the fuel gauge unit is mounted on one side of the cylinder body is made of a structure capable of measuring the level of the fuel as the vertical movement of the float in accordance with the level change of the LPG fuel.

That is, the fuel gauge unit includes a rotating body connected to the float through the float arm, and converts the rotation angle of the rotating body that changes with movement up and down of the float into a resistance value, and as the resistance value, The level is measured.

In addition, the overcharge preventing unit is mounted on the other side of the cylinder body separately from the fuel gauge unit is made of a structure that can selectively block the injection of the fuel charged into the interior of the cylinder body by the vertical movement of the float by the LPG fuel.

That is, the overcharge preventing unit includes a valve unit connected to the float through the float arm. When the amount of filling of the LLP fuel reaches 80 to 85% with respect to the predetermined amount of the predetermined amount, that is, the maximum filling amount, the float is on the upper side. As it moves to to close the valve passage of the valve unit to prevent the overcharge of the LLP fuel.

However, in the related art, since the fuel gauge unit and the overcharge preventing unit have a float and a float arm and are separately mounted to the cylinder body, the overall structure is complicated, and the cost of manufacturing the LPI cylinder increases. It implies

Therefore, an exemplary embodiment of the present invention has been created to improve the problems as described above, the fuel gauge unit for measuring the level of the vellum fuel and the overcharge prevention unit for preventing the overcharge of the levitation fuel is integrally configured, It is an object of the present invention to provide a fuel gauge integrated overcharge protection device of the LPG Bomb to allow the overcharge prevention unit to be interlocked by the fuel gauge unit.

The fuel gauge integrated overcharge preventing device of the LPG bomb according to an exemplary embodiment of the present invention for achieving the above object, iii) is configured on the inner side of the LPG cylinder body, the upper and lower of the float according to the level change of the LPG fuel A gauge unit capable of measuring the level of the LLP fuel through movement, ii) an overcharge preventing unit which is integrally formed with the gauge unit and can block the injection of fuel during overcharging of the LLP fuel; It includes an interlocking member which is installed to be connected to the gauge unit to interlock by the vertical movement to interfere with the overcharge prevention unit.

In the fuel gauge integrated overcharge prevention device of the LPG cylinder, the gauge unit is connected to the float through a first arm and a gauge rod installed to be connected to the first mounting portion, the first mounting portion mounted to the Elpgi cylinder body; It may include a gauge body which is installed at the end of the gauge rod while having a rotating body to be installed.

In the fuel gauge-integrated overcharge preventing device of the LLP bomb, the overcharge preventing unit has an inlet for injecting the LLP fuel, and a second mounting portion mounted to the LLP cylinder and a fuel injection pipe connected to the inlet. And a valve member installed to be connected to an end of the fuel injection pipe, and a lever member rotatably installed at the valve body to selectively open and close the valve passage of the valve body.

In the fuel gauge integrated overcharge preventing device of the LPG bomb, the interlocking member is fixed to the rotating body to support the rotation of the rotating body, and within the rotation radius corresponding to the top dead center and the bottom dead center of the float. It can be made as a rotating center pin for selectively rotating the lever member.

In the fuel gauge integrated overcharge preventing device of the LLP bomb, the lever member may form a locking projection that may interfere with the rotation center pin.

In the fuel gauge-integrated overcharge preventing device of the LPG bomb, the rotation center pin is configured to be slidably coupled to the lever member between a position corresponding to the bottom dead center of the float and the catching protrusion to pressurize the lever member. Can be.

In the fuel gauge integrated overcharge preventing device of the LLP bomb, the locking projection may be formed with a seating groove in which the rotation center pin is seated.

In the fuel gauge integrated overcharge preventing device of the LLP bomb, the rotating center pin is a first portion connected to the rotating body in the horizontal direction, and the first portion is integrally connected to the first portion is formed to be bent in the vertical direction It is formed to be bent in the horizontal direction while integrally connected to the second portion and the second portion can be made as a third portion substantially interferes with the overcharge preventing unit.

In the fuel gauge integrated overcharge preventing device of the LLP cylinder, the first mounting part and the second mounting part may be integrally mounted to the LLP cylinder body via a mounting plate.

The fuel gauge integrated overcharge preventing device of the LLP bomb may be formed such that the gauge body and the valve body are integrally connected.

According to the fuel gauge integrated overcharge preventing device of the LPG Bomb according to an exemplary embodiment of the present invention as described above, the fuel gauge unit and the overcharge preventing unit are integrally formed and interlocked by the fuel gauge unit to interfere with the overcharge preventing unit. By providing the interlocking member, the overcharge preventing float and the float arm as in the prior art can be deleted.

Therefore, in this embodiment, it is possible to simplify the structure of the overall LLP bomb, it is possible to reduce the cost by reducing the number of assembly parts.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is a perspective view showing a fuel gauge integrated overcharge prevention device of the LPG bomb according to an exemplary embodiment of the present invention, Figure 2 is applied to the fuel gauge integrated overcharge protection device of the LPG cylinder according to an exemplary embodiment of the present invention Figure is a diagram showing the overcharge prevention unit.

Referring to the drawings, the fuel gauge-integrated overcharge preventing device 100 of the LPG bomb according to the present embodiment measures the level of the LPG fuel accommodated in the LPG cylinder body 10 (hereinafter referred to as "bomb body" for convenience). To prevent overcharging of the LLP fuel to the cylinder body (10).

The fuel gauge integrated overcharge preventing device 100 of the LLP bomb is made of a structure in which the gauge unit 30 for measuring the level of the LLP fuel and the overcharge preventing unit 50 for preventing the overcharge of the LLP fuel are integrally formed.

 To this end, the fuel gauge integrated overcharge preventing device 100 of the LPG bomb according to the present embodiment is configured to include an interlocking member 70 that can interfere with the overcharge preventing unit 50 by interlocking with the gauge unit 30. .

In the present embodiment, the gauge unit 30 is configured on one side of the cylinder body 10, and is for measuring the level of the LPG fuel through the vertical movement of the float 41 according to the level change of the LPG fuel. .

The gauge unit 30 includes a first mounting part 32, a gauge rod 34, and a gauge body 36.

The first mounting part 32 is mounted to the cylinder body 10, and is disposed in the cylinder body 10 while being supported on the outer surface of the cylinder body 10 through the mounting plate 42.

The gauge rod 34 is installed to be connected to the first mounting part 32 and has a pipe shape for accommodating measuring means (not shown) such as a variable resistor or a cable for measuring the level of fuel.

In this case, the measuring means (not shown) is configured as a measuring unit of a conventional structure that can output an electrical signal corresponding to the fuel level to a separate display means (not shown) through the first mounting portion (32).

The gauge body 36 is provided to be connected to the end of the gauge rod 34, and has a rotating body 37 installed to be connected to the float 41 through the float arm 43.

Here, the rotating body 37 is formed as a circular rotating plate having teeth at the edge portion, so that the float 41 is rotatable in both directions through the float arm 43 as the float 41 moves up and down according to the level change of the fuel. It is provided.

In this case, the gauge main body 36 is further provided with a separate rotating means 38 which is engaged with the teeth of the rotating body 37 to transmit the amount of rotation of the rotating body 37 to a measuring means (not shown). Doing.

In this embodiment, the overcharge preventing unit 50 is integrally formed with the gauge unit 30 as described above.

The overcharge preventing unit 50 substantially injects the Elpgi fuel when the amount of filling of the Elpgi fuel to be charged into the cylinder body 10 reaches 80 to 85% with respect to a predetermined amount, i.e., the maximum filling amount. It is made of a structure that can be blocked.

The overcharge preventing unit 50 largely includes a second mounting portion 51, a fuel injection pipe 53, a valve body 55, and a lever member 67.

The second mounting portion 51 is mounted to the cylinder body 10, which is disposed in the cylinder body 10 in a state of being supported on the outer surface of the cylinder body 10 through the mounting plate 42 mentioned above. do.

That is, the second mounting portion 51 is integrally connected to the first mounting portion 32 of the gauge unit 30 through the mounting plate 42.

The second mounting portion 51 forms an inlet 52 through which the LLP fuel can be injected into the interior space of the cylinder body 10.

The fuel injection pipe 53 is installed to be connected to the second mounting portion 51 and is formed as a pipe connected to the inlet 52 of the second mounting portion 51.

The valve body 55 is installed to be connected to the end of the fuel injection pipe 53 and is formed integrally with the gauge body 36 of the gauge unit 30.

3A to 3C, the valve body 55 includes a valve housing 56 that is integrally connected to the fuel injection pipe 53, and first and second spools 61 installed in the valve housing 56. , 63).

The valve housing 56 forms a valve passage 57 that is interconnected with an internal passage of the fuel injection tube 53, and at one side, the Elpji fuel injected through the fuel injection tube 53 is a cylinder body 10. A first outlet 58a that can be supplied to the inner space of the is formed.

An end of the valve housing 56 is provided with a valve cap 59 having a second outlet 58b for supplying the LPI fuel to the inner space of the cylinder body 10 separately from the first outlet 58a. .

In this case, the first outlet 58a and the second outlet 58b are interconnected with the valve passage 57.

In the above, the first spool 61 (commonly referred to in the art as a "flow valve") is an LPI fuel in the valve passage 57 of the valve housing 56 to selectively open and close the first outlet 58a. It is comprised so that reciprocation is possible by the pressure of.

The first spool 61 has a cylindrical shape having a hole 62 communicating with an internal passage of the fuel injection pipe 53 and a predetermined internal space communicating with the hole 62.

The second spool 63 (commonly referred to in the art as a "back pressure valve") is in the form of a rod fitted into the second outlet 58b of the valve cap 59 and corresponds to the first spool 61. One end portion is formed with a locking step (63a) that can selectively open and close the second outlet (58b).

In addition, a spring retainer 65 is installed at the other end of the second spool 63 that protrudes outward through the second outlet 58b of the valve cap 59.

The lever member 67 is rotatably installed in both directions with respect to the valve housing 56.

That is, the lever member 67 opens the second outlet 58b of the valve cap 59 by pressing the second spool 63 while overcoming the elastic force of the spring 64, and is rotated in one direction to spring 64. It is made as a structure capable of closing the second outlet (58b) through the second spool (63) in place by the elastic restoring force of the).

Here, the lever member 67 is formed in an approximately semi-circular shape in appearance, one end is hinged to the edge of the valve housing 56, the other end is disposed toward the edge of the valve cap 59. .

In addition, at the center between one end of the lever member 67 and the other end, a locking projection 69 which can be interfered by the linking member 70 which will be described later is formed.

In the device 100 configured as described above, the interlocking member 70 according to the present embodiment selectively rotates the lever member 67 of the overcharge preventing unit 50 by interlocking by the vertical movement of the float 41. It is to let.

The interlocking member 70 is configured to be connected to the rotating body 37 of the gauge unit 30, while being fixed to the rotating body 37 while rotating together with the rotating body 37, the overcharge preventing unit 50 It is made as a rotating center pin 71 that can interfere with the lever member (67) of.

The rotation center pin 71 supports the rotation of the rotating body 37 according to the vertical movement of the float 41, and the lever member 67 within the rotation radius corresponding to the top dead center and the bottom dead center of the float 41. It acts as a so-called latch that selectively rotates).

Specifically, the rotation center pin 71 is the first portion 72a connected to the rotating body 37 in the horizontal direction, and the second portion formed to be bent in the vertical direction integrally connected to the first portion 72a It consists of the part 72b and the 3rd part 72c formed in the horizontal direction while integrally connected with the 2nd part 72b (refer FIG. 1).

Here, the third portion 72c is a portion that interferes with the locking projection 69 of the lever member 67, and the other end of the lever member 67, that is, the float 41 as the rotating body 37 rotates. The lever member 67 is pushed toward the valve body 55 side of the overcharge preventing unit 50 while slipping on the lever member 67 between the position corresponding to the bottom dead center of the bottom and the locking projection 69.

On the other hand, the engaging projection 69 of the lever member 67 as described above is formed with a seating groove (69a) on which the third portion (72c) of the rotation center pin (71) can be seated.

Therefore, according to the fuel gauge integrated overcharge preventing device 100 of the LPG bomb according to the exemplary embodiment of the present invention configured as described above, first through the inlet 52 of the second mounting portion 51 as shown in FIG. In the case of filling the LLP fuel into the inner space of the body 10, the LLP fuel is supplied to the valve passage 57 through the fuel injection pipe 53.

At this time, the float 41 of the gauge unit 30 is located at the bottom dead center, and the lever member 67 overcomes the elastic force of the spring 64 by the rotational center pin 71 to open the second spool 63. It is pressurizing and the 2nd outlet 58b is open | released by this.

That is, the third portion 72c of the rotation center pin 71 presses the lever member 67 at a position corresponding to the other end of the lever member 67, that is, the bottom dead center of the float 41. .

In the process of supplying the LLP fuel to the valve passage 57 through the fuel injection pipe 53, the first spool 61 moves toward the valve cap 59 by the pressure of the fuel, and thus the first outlet port. The 58a is in the open state by the first spool 61.

Therefore, the LLP fuel supplied to the valve passage 57 is received into the interior space of the cylinder body 10 through the first outlet 58a and the second outlet 58b.

On the other hand, as described above, in the process of receiving the LLP fuel into the cylinder body 10, the float 41 of the gauge unit 30 is gradually moved upward by the LLP fuel.

Then, the rotating body 37 of the gauge unit 30 is rotated in one direction through the float arm 43.

At the same time, the rotation center pin 71 is rotated together with the rotating body 37, the lever member 67 in the direction of the dotted arrow of Figure 3b between the other end of the lever member 67 and the locking projection (69). ) Slip.

That is, the lever member 67 presses the second spool 63 as the rotating center pin 71 slips onto its surface and rotates.

On the other hand, in the process of continuously injecting the LPG fuel into the cylinder body 10, when the float 41 of the gauge unit 30 reaches the top dead center, that is, the amount of charge of the LPG fuel to the predetermined prescribed amount When reaching, the rotating center pin 71 which rotates while slipping on the lever member 67 is caught by the locking projection 69 of the lever member 67 and lifts the lever member 67 as shown in FIG. 3C.

Then, the second spool 63 is returned to its original position by the elastic restoring force of the spring 64, whereby the second outlet 58b is closed by the second spool 63.

At the same time, the first spool 61 is returned to its original position by the filling pressure of the LLP fuel, whereby the first outlet 58a is closed by the first spool 61.

As such, as both the first outlet 58a and the second outlet 58b are closed as described above, the LLP fuel is no longer injected through the fuel injection pipe 53, thereby preventing overcharging of the LLP fuel. It becomes possible.

Therefore, in the present embodiment, the gauge unit 30 and the overcharge preventing unit 50 are integrally configured and provided with an interlocking member 70 that can interfere with the overcharge preventing unit 50 while being interlocked by the gauge unit 30. Accordingly, the overcharge preventing float and the float arm as in the prior art can be deleted.

Thus, in the present embodiment, unlike the prior art by removing the overcharge float and float arm, it is possible to simplify the structure of the overall LLP cylinder, and to reduce the cost by reducing the number of assembly parts.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

Since these drawings are for reference in describing exemplary embodiments of the present invention, the technical idea of the present invention should not be construed as being limited to the accompanying drawings.

1 is a perspective view showing a fuel gauge integrated overcharge prevention device of the LPG bomb according to an exemplary embodiment of the present invention.

FIG. 2 is a view illustrating an overcharge preventing unit part applied to an fuel gauge integrated overcharge preventing device of an LPI bomb according to an exemplary embodiment of the present invention.

3A to 3C are views for explaining the operation of the fuel gauge integrated overcharge protection device of the LPG bomb according to an exemplary embodiment of the present invention.

Claims (5)

A gauge unit configured at one inner side of the LPI cylinder body to measure the level of the LLP fuel through vertical movement of the float according to the level change of the LPI fuel; An overcharge preventing unit which is integrally formed with the gauge unit and can block the injection of fuel during the overcharging of the LLP fuel; And Interlocking member is installed to be connected to the gauge unit to interfere with the overcharge prevention unit by interlocking by the vertical movement of the float Fuel gauge integrated overcharge preventing device of Elpgi Bombe including. According to claim 1, The gauge unit, Gauge installed at the end of the gauge rod having a first mounting portion mounted to the Elpim cylinder body, a gauge rod installed to be connected to the first mounting portion, and a rotating body installed to be connected to the float through a float arm. Including a body, The overcharge preventing unit, A second mounting portion having an inlet for injecting the LPI fuel and mounted to the LPI cylinder body, a fuel injection pipe connected to the inlet port, and a valve body connected to an end of the fuel injection pipe; A fuel gauge-integrated overcharge preventing device of an Lpgi bombe, which is rotatably installed in the valve body and comprises a lever member for selectively opening and closing the valve passage of the valve body. The method of claim 2, The interlocking member, The fuel gauge of the Elpigi Bombe, which is fixed to the rotating body and supports the rotation of the rotating body and is configured as a rotation center pin for selectively rotating the lever member within a rotation radius corresponding to the top dead center and the bottom dead center of the float. Integrated overcharge prevention device. The method of claim 3, wherein The lever member, Fuel gauge integrated overcharge preventing device of the LLP bomb forming a locking projection that can interfere with the rotation center pin. The method of claim 2, The rotating center pin, A first portion connected to the rotating body in a horizontal direction; A second portion integrally connected to the first portion and bent in a vertical direction; A fuel gauge integrated overcharge preventing device of an Lpgi bombe, which is integrally connected to the second part and is bent in a horizontal direction and is formed as a third part substantially interfering with the overcharge preventing unit.

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