KR100637767B1 - Diesel particulate filter cassette - Google Patents

Abstract

A diesel particulate filter cassette is provided to reduce burden of a vehicle for an energy consumption consumed at the regeneration by removing a heat required a forcible regeneration of the diesel particulate filter. In a diesel particulate filter cassette, first and second sealing units(110,120) are separably connected to both sides of the diesel particulate filter. A plurality of through holes is formed on each of the first and the second sealing units to allow an exhaust gas to pass through the diesel particulate filter. And, a switching unit(130) is installed in a first sealing unit to move the first sealing unit in a direction of connecting and disconnecting to the diesel particulate filter.

Description

Diesel particle filter cassette {DIESEL PARTICULATE FILTER CASSETTE}

1 is a front sectional view showing a diesel particle filter cassette according to the present invention,

Figure 2 is a side view showing a diesel particle filter cassette according to the present invention,

3 is a cross-sectional view taken along line AA ′ of FIG. 1;

Figure 4 is a cross-sectional view showing a coupling portion of the sealing cap and the frame according to the present invention,

5 is an operational state diagram showing a diesel particle filter cassette according to the present invention.

<Description of Symbols for Main Parts of Drawings>

110: first sealing unit 111: first sealing cap

112: first sealing member 113: first frame

120: second sealing unit 121: second sealing cap

122: second sealing member 123: second frame

123a: support plate 130: opening and closing means

131: cylinder 132: piston rod

The present invention relates to a diesel particle filter cassette, and more particularly, to allow the diesel particle filter to be easily mounted and detached from a vehicle, to easily provide conditions for perfect regeneration to the diesel particle filter separated from the vehicle. It relates to a filter cassette.

In general, a diesel engine has an excellent durability, but compared with a gasoline engine, a diesel engine has a problem of emitting a large amount of nitrogen oxides (NOx) and particulate matter (Particulate Matter).

The particulate matter discharged from the diesel engine is small particles of about 0.1 to 0.4 mu m and floats in the air, causing various diseases such as lung diseases. Therefore, diesel engines are regulated for exhaust, and diesel particulate filters (also referred to as "DPFs") are used to satisfy these emission regulations, and as a result, exhaust of vehicles using diesel engines is exhausted. It is possible to greatly reduce particulate matter such as soot, which is harmful to the human body, included in the gas.

On the other hand, when the diesel particulate filter is reduced due to the continuous collection of particulate matter to recover the original capturing capacity by regeneration, it is very important not to be damaged during regeneration. The regeneration method of the diesel particulate filter includes a natural regeneration method and a forced regeneration method. In the natural regeneration method, when the chute is sufficiently collected in the diesel particle filter, oxygen is sufficiently supplied to burn the chute. Since the temperature of the diesel particulate filter cannot be controlled, an abnormal temperature of combustion of particulate matter such as a chute may occur, which may cause thermal damage or even melt of the diesel particulate filter. Therefore, due to this problem, the diesel particulate filter is being regenerated by a forced regeneration method, and this forced regeneration method reduces the natural regeneration by reducing the amount of air supplied to the engine by lowering the boost pressure. It is an efficient way to reduce smoke.

However, the forced regeneration method of the diesel particle filter calculates the chute trapping amount by using a differential pressure sensor, artificially increases the fuel supply amount and lowers fuel economy as the chute is burned in the diesel particle filter. Due to the heat generated by the combustion of the temperature of the diesel particle filter often exceeds 1000 ℃ has a problem in reducing the durability of the diesel particle filter by reducing the durability.

Therefore, there is a need to separate such diesel particle filter from the vehicle to provide the most complete regeneration conditions and to regenerate.

The present invention is to solve the above-mentioned conventional problems, an object of the present invention is to easily provide a condition for perfect regeneration in the diesel particle filter separated from the vehicle by allowing the diesel particle filter to be easily mounted and detached from the vehicle. It increases the regeneration efficiency and durability of the diesel particle filter, and removes the heater for forced regeneration of the diesel particle filter from the vehicle to reduce the burden on the vehicle for the energy consumption of the regeneration, and to reduce the cost of installing the heater. To provide a diesel particle filter cassette that can be.

The present invention for realizing the above object is a cassette which is installed on an exhaust pipe of a diesel engine and is detachably mounted with a diesel particle filter for filtering particulate matter contained in exhaust gas. The first and second sealing units and the first sealing unit, respectively, which are detachably coupled to each other and are installed on the exhaust pipe and each through hole is formed so that the exhaust gas moving along the exhaust pipe passes through the diesel particle filter. And opening and closing means installed on the first sealing unit to reciprocate in the direction in which the particle filter is coupled to and separated from the particle filter.

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.

1 is a front sectional view showing a diesel particle filter cassette according to the present invention, Figure 2 is a side view showing a diesel particle filter cassette according to the present invention, Figure 3 is a cross-sectional view taken along the line AA 'of FIG. . As shown, the diesel particulate filter cassette 100 according to the present invention is respectively coupled to both entrances and exits of the diesel particulate filter (1) for filtering particulate matter contained in the exhaust gas discharged by the exhaust pipe (2) of the diesel engine. Opening and closing means 130 for moving the first and second sealing units 110 and 120 installed on the exhaust pipe 2 and the first sealing unit 110 in a direction in which the diesel particulate filter 1 is coupled to and separated from the diesel particulate filter 1. It includes.

The first and second sealing units 110 and 120 are installed on the exhaust pipe 2 so as to face each other with the diesel particle filter 1 interposed therebetween, so that the first and second sealing units 110 and 120 are detachably coupled to both entrances and exits of the diesel particle filter 1, respectively. In addition, the through holes 111a and 121a are formed to allow the exhaust gas moving along the exhaust pipe 2 to pass through the diesel particle filter 1, respectively.

The first sealing unit 110 is the first sealing cap 111 and the first sealing member 112, the second sealing unit 120 is the second sealing cap 121 and the second sealing member 122, respectively. Include.

Each of the first and second sealing caps 111 and 121 has through-holes 111a and 121a formed at one side thereof, and flanges 2a of the exhaust pipe 2 are formed at the edges of the through-holes 111a and 121a. It is fixed by the nut 142. At this time, between the first and second sealing caps 111 and 121 and the flange 2a of the exhaust pipe 2, an insertion member 145 such as a gasket or a cushioning member for preventing leakage of exhaust gas is interposed. Is preferred.

Each of the first and second sealing caps 111 and 121 is formed with insertion portions 111b and 121b so that the open side is fitted into the entrance and exit of the diesel particle filter 1, and is excessively inserted into the diesel particle filter 1. In order to suppress this, the flanges 111c and 121c are formed in the insertion portions 111b and 121b to face the flange 1a of the diesel particulate filter 1.

The first and second sealing members 112 and 122 are annular members such as gaskets and O-rings, and are open sides of the first and second sealing caps 111 and 121, that is, the insertion portions 111b and 121b and the flanges 111c and 121c. By being installed in each of the first and second sealing caps (111, 121) so that the open side when combined with the entrance and exit of the diesel particulate filter (1) to maintain the airtight.

The first and second sealing units 110 and 120 may further include first and second frames 113 and 123 to facilitate installation of the opening and closing means 130 and mounting of the diesel particulate filter 1 to be described later. .

As shown in FIG. 4, the first and second frames 113 and 123 each have a bolt 143 and a nut 144 at the coupling parts 111d and 121d provided at the outside of the first and second sealing caps 111 and 121. The first and second sealing caps 111 and 121 are respectively secured by the first and second sealing caps 111 and 121, respectively, and are connected to each other by the opening and closing means 130, and the intervals thereof are adjusted so that the first sealing unit 110 is closed from the entrance and exit of the diesel particulate filter 1. ) Are separated or combined.

The first frame 113 is a U-shaped member is provided with a support plate 113a for supporting the outer circumferential surface of the first sealing cap 111 inside.

The second frame 123 is a U-shaped member, the end of which extends from the second sealing cap 121 to the outside of the diesel particle filter 1, the support groove 123b for supporting the outer peripheral surface of the diesel particle filter (1) At least one support plate (123a) is formed on the inside. Therefore, the diesel particle filter 1 may be supported by the support plate 123a of the second frame 123 in order to easily mount and detach the diesel particle filter 1.

The opening and closing means 130 is installed in the first hermetic unit 110 to reciprocate the first hermetic unit 110 in a direction in which the diesel particulate filter 1 is coupled to and separated from the diesel particulate filter 1.

The opening and closing means 130 may use a variety of driving means to move the first sealing unit 110 in the direction in which the diesel particulate filter (1) detachable. For example, by converting the rotational force of the motor into a linear motion by using a rack and pinion, a ball screw, etc. to be transferred to the first sealing unit 110, it is possible to enable the transfer of the first sealing unit 110, this embodiment In the example, it is preferable that the cylinder 131 is driven by hydraulic pressure or pneumatic with a simple structure and accurate operation.

The opening and closing means 130 is not necessarily connected to the second sealing unit 120 to move the first sealing unit 110, but is installed only in the first sealing unit 110 so that the exhaust pipe 2 is installed. The cylinder 131 which is the opening and closing means 130 in this embodiment is fixed in the second frame 123 of the second hermetic unit 120 for efficient installation in a limited space, and the piston rod 132 ) Is fixed to the support plate 113a of the first frame 113 of the first sealing unit 110. In addition, the cylinder 131 is installed on the upper side and the lower side of the second hermetic unit (110, 120) in order to accurately detach the first hermetic unit (110) from the diesel particulate filter (1).

An opening 123c may be formed in the support plate 123a of the second frame 123 to provide a space in which the cylinder 131 may be installed inside the second frame 123.

In consideration of the fact that the first sealing unit 110 is moved by the opening and closing means 130, the side into which the exhaust gas flows into the second sealing cap 121 of the second sealing unit 120 is introduced. It is preferable that the side of the exhaust gas discharged from the exhaust pipe 2 is fixed to the first sealing cap 111 of the first sealing unit 110. Therefore, even if the first sealing unit 110 moves, the exhaust gas discharge side of the exhaust pipe 2 has a free end, so that the exhaust pipe 2 is not subjected to excessive force in a state fixed in the vehicle.

Operation of the diesel particle filter cassette having such a structure is made as follows.

As shown in FIG. 5, the cylinder 131 is operated to widen the gap between the first sealing unit 110 and the second sealing unit 120 to the maximum, and then the second entrance of the diesel particle filter 1 is sealed in the second. Inserted into the insertion part 121b provided in the second sealing cap 121 of the unit 120, and reversely operating the cylinder 131 again to move the first sealing unit 110 to the second sealing unit 120. To insert the insertion portion 111b of the first sealing cap 111 into the other entrance of the diesel particulate filter 1, and at the same time along the exhaust pipe 2 by the first and second sealing members 112 and 122. The moving exhaust gas passes through the diesel particulate filter 1 without external leakage, so that particulate matter contained in the exhaust gas is filtered.

On the other hand, when the diesel particle filter 1 is to be separated from the exhaust pipe 2 in order to regenerate, the cylinder 131 is operated so that the first sealed unit 110 is separated from the diesel particle filter 1 and then diesel particles. The diesel particulate filter 1 can be easily separated from the exhaust pipe 2 by holding the handle 1b of the filter 1 and separating it from the second sealing unit 120.

The diesel particle filter 1 separated from the first and second sealing units 110 and 120 can be regenerated under perfect regeneration conditions, thereby increasing regeneration efficiency and durability. In addition, since the heater for forced regeneration of the diesel particulate filter 1 can be deleted from the vehicle, the burden on the vehicle for energy consumption required for regeneration can be reduced, and the cost for mounting the heater can be reduced.

As described above, the diesel particle filter cassette according to the present invention allows the diesel particle filter to be easily mounted and detached from the vehicle, thereby easily providing conditions for perfect regeneration to the diesel particle filter separated from the vehicle, thereby providing a diesel particle filter. Increases the regeneration efficiency and durability of the vehicle, and removes the heater for forced regeneration of the diesel particulate filter from the vehicle, thereby reducing the burden on the vehicle for energy consumption and reducing the cost of installing the heater. Have

What has been described above is only one embodiment for implementing the diesel particle filter cassette according to the present invention, the present invention is not limited to the above-described embodiment, the subject matter of the present invention as claimed in the following claims Without departing from the technical spirit of the present invention to the extent that any person of ordinary skill in the art to which the present invention pertains various modifications can be made.

Claims (5)

A cassette is installed on an exhaust pipe of a diesel engine and is detachably mounted with a diesel particle filter for filtering particulate matter contained in exhaust gas. The first and the second through-holes are respectively formed in the exhaust pipe is detachably sealed to both entrances and exits of the diesel particulate filter, the through-holes are formed so that the exhaust gas moving along the exhaust pipe passes through the diesel particulate filter. 2 sealed unit, Opening and closing means provided in the first hermetic unit to reciprocate the first hermetic unit in a direction that is coupled to and separated from the diesel particulate filter Diesel particle filter cassette comprising a. The method of claim 1, The first and second sealing unit, First and second sealing caps having a through hole formed at one side, and the exhaust pipe fixed at an edge of the through hole, and an opening side of which is fitted into an entrance of the diesel particulate filter; First and second sealing members respectively installed on the open side of the first and second sealing caps for airtightness when combined with the entrance and exit of the diesel particle filter. Diesel particle filter cassette comprising a. The method of claim 2, The first and second sealing unit, First and second frames fixed to the outside of the first and second sealing caps, respectively, and connected to each other by the opening and closing means, and the distance is adjusted Diesel particle filter cassette further comprising. The method of claim 3, wherein The second frame, At least one support plate is formed extending to the outside of the diesel particle filter, the support plate is formed with a support groove for supporting the outer peripheral surface of the diesel particle filter. Diesel particle filter cassette, characterized in that. The method according to claim 1 or 3, The opening and closing means, By cylinders driven by hydraulic or pneumatic pressure Diesel particle filter cassette, characterized in that.

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