KR100291319B1 - Air Cleaner For Engine of Ship - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner of a marine engine provided in an intake port of a marine engine and removing foreign matter from air supplied to the combustion chamber through the intake port. The air cleaner has a cylindrical outer and inner perforated plates 22 and 24 formed with a plurality of through holes and spaced apart from each other by a predetermined interval, and a space between the outer and inner perforated plates while fixing one side of the outer and inner perforated plates. Annular covers 27 and 28 covering the openings to form openings, mesh outer and inner metal filters 30 and 32 installed in close contact with the outer and inner perforated plates facing each other, and the outer and A cylindrical body 20 made of a synthetic fiber filter 34 in the form of a mesh provided in the space between the inner metal filters is provided. In addition, a fixing plate (40) having a cover (26) covering the whole of one side of the cylinder, an air supply port connected to the inlet of the engine by blocking the opening of the cylinder, and a cylinder fixing device for fixing the cylinder to the fixing plate. It is provided. In addition, the fixed inlet is formed in a cylindrical shape having an insertion hole into which the intake port of the engine is fitted, and has a fixed end facing each other by a cutout formed in the radial direction, and is fixed to the inlet of the engine by tightly fixing the both fixed ends. And a fixing means for fixing the fixing plate to the fixing flange in a state in which the air supply port of the fixing plate and the insertion hole of the fixing flange are aligned with each other.

Description

Air Cleaner For Engine of Ship

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner (air cleaner) of a marine engine installed in an inlet of a marine engine and removing foreign matter from the air supplied to the combustion chamber through the inlet.

Generally, the combustion chamber of an engine is supplied with the air required for combustion. Air is supplied after the foreign matter is removed through the air cleaner. This protects the interior of the engine and increases the engine's output by increasing combustion efficiency.

Therefore, as shown in FIG. 1, the air cleaner 3 is installed in the inlet port 2 of the engine 1 to remove foreign substances from the air supplied to the combustion chamber. In particular, the marine engine 1 is installed in an engine room with a very small space, and in the narrow engine room, such an air cleaner (3) generates a lot of rubber dust, scattered oil and dust due to V-belt rotation during engine operation. ) Is essential.

As shown in FIG. 2, the air cleaner 3 installed in the ship engine 1 of the related art has an air supply port 4a connected to the inlet port 2 of the engine 1 on one side of the air cleaner 3. The formed cylindrical punched plate 4 is provided. The open side of the perforated plate 4 is blocked by the cover 5, and the cover 5 is fixed to the perforated plate 4 by the bolt 6 and the nut 7.

In addition, a paper filter 8 is provided inside the perforated plate 4. Therefore, as shown by the arrow of Figure 2, the air introduced into the interior through the perforated plate 4 from the outside passes through the paper filter 8, whereby foreign matters such as oil, rubber dust and dust mixed in the air is paper It is adsorbed by the filter 8 and removed. The air from which foreign substances have been removed is supplied to the inlet port 2 of the engine 1 through the air supply port 4a.

On the other hand, the air cleaner 3 connects the tube 9 between the air supply port 4a of the air cleaner 3 and the intake port 2 of the engine 1, and fastens both ends of the tube 9. It is installed in the engine 1 by fixing with the spheres 9a and 9b.

However, since the air cleaner 3 of the above-mentioned conventional structure removes the foreign matter mixed with the air by the paper filter 8, it is very difficult to shake off the foreign matter caught by the paper filter 8 and remove it. In particular, since there are a lot of scattered oil in the engine room of the ship, a lot of oil is adsorbed together with the dust in the paper filter (8), it is impossible to remove such oily foreign substances from the paper filter (8) paper filter ( There is a hassle to replace 8) from time to time, and there is an economic burden.

In addition, since the air cleaner 3 is connected to the intake port 2 of the engine through the tube 9, it is difficult to replace the air cleaner 3, and the rubber tube 9 is damaged due to vibration during engine driving. easy.

Therefore, due to such inconvenience, the air cleaner 3 is often removed and used, and in this case, air mixed with foreign substances is supplied to the combustion chamber of the engine, thereby lowering the combustion efficiency and causing the performance of the engine.

The present invention is to solve the conventional problems as described above, the object of the marine engine that can reuse the filter by allowing to remove the foreign matter, such as oil on the filter in the process of removing the foreign matter from the air. To provide an air cleaner.

Another object of the present invention is to provide an air cleaner of a marine engine, which is very easy to attach to or detach from an engine and can be set in an installation position so as not to come into contact with peripheral accessories of the engine.

1 is a front view of a marine engine schematically showing the installation state of the air cleaner.

2 is a longitudinal sectional view showing a conventional air cleaner structure.

3 is an exploded perspective view of the air cleaner according to the present invention.

Figure 4 is a longitudinal sectional view showing the structure of an air cleaner according to the present invention.

Figure 5 is a side view showing a fixed flange of the air cleaner according to the present invention.

Figure 6 is a side view showing a fixing plate of the air cleaner according to the present invention.

Figure 7 is a longitudinal sectional view schematically showing another embodiment of the air cleaner according to the present invention.

<Description of the symbols for the main parts of the drawings>

2: intake port 10: air cleaner

20: cylinder 20A: auxiliary cylinder

22, 24: outer and inner perforated plate 26: cover

27,28: annular cover 30,32: outer and inner metal filter

34: synthetic fiber filter 36: auxiliary filter

40: fixing plate 40a-40h: fixing hole

42: air supply port 44: support

46,58: Bolt 48: Middle nut

49: nut 50: fixing flange

52: insertion hole 54: cutout

56a to 56d: screw hole

This object of the present invention is a cylindrical outer perforated plate having a plurality of through holes, a cylindrical inner perforated plate provided inside the outer perforated plate and provided with a plurality of through holes, and provided between the outer perforated plate and the inner perforated plate. A cylindrical body provided with a metal mesh and a fiber mesh spaced apart from the metal mesh;

A cover covering one side of the cylinder,

Is coupled to the other side of the cylinder, is achieved by the air cleaner of the engine comprising a fixed plate having an air supply port connected to the inlet of the engine.

According to another aspect of the present invention, in the filter for use in the air cleaner for filtering the air supplied to the engine,

A cylindrical outer perforated plate having a plurality of through holes, a cylindrical inner perforated plate provided inside the outer perforated plate and provided with a plurality of through holes, an outer side provided adjacent to the inner surface of the outer perforated plate and the outer surface of the inner perforated plate, respectively. And an inner metal mesh, a fiber mesh installed to be spaced apart from the metal mesh between the outer and inner metal meshes, and an annular cover covering the outer perforated plate and the inner perforated plate at sides of the outer perforated plate and the inner perforated plate. A cylindrical filter is provided, which is characterized by the above-mentioned.

According to another aspect of the invention, the cylindrical filter,

A fixed plate coupled to one side of the cylindrical filter and having an eccentric air supply port connected to an intake port of an engine;

Attached to the air supply port, formed in a cylindrical shape to form an insertion hole into which the intake port of the engine is fitted, and having a fixed end facing by a cutout formed in a radial direction, by tightly fixing the both fixed ends An air cleaner of an engine is provided, including a fixed flange fixed to an intake port of an engine.

Hereinafter, the air cleaner of the marine engine according to the present invention will be described in detail with the accompanying drawings.

3 is an exploded perspective view of the air cleaner according to the present invention, Figure 4 is a longitudinal cross-sectional view of the assembled state, the air cleaner 10 of the present invention is large cylinder 20, fixed plate 40, cover 26, And it consists of the fixing flange 50 for fixing the air cleaner 10 to the inlet port 2 of an engine.

The cylinder 20 has a cylindrical outer perforated plate 22 and an inner perforated plate 24, and the outer and inner perforated plates 22 and 24 are spaced apart from each other at regular intervals to form a space therebetween. A plurality of through holes 22a and 24a are formed to freely flow.

The outer and inner perforated plates 22 and 24 are fixed by an annular cover 27 whose one side covers a space between the outer and inner perforated plates 22 and 24. An opening is formed in the center of the cover 27. While the other side is also fixed by the annular cover 28, the space between the outer and inner perforated plates 22 and 24 is covered by the cover 28, and the opening 28a is formed.

In addition, the filter of the cylinder 20, the outer and inner metal filter (metal mesh) (30, 32) and the fiber filter made of a mesh (mesh) for removing foreign matter from the air between the outer and inner perforated plates (22, 24). (Fiber net) 34 is provided. The fiber filter 34 is made of glass fiber, natural fiber or synthetic fiber. The outer and inner metal filters 30 and 32 are installed in close contact with the outer and inner perforated plates 22 and 24 in a cylindrical shape, respectively, and the fiber filter 34 is the outer and inner metal filters 30 and 32. It is installed in a cylindrical shape at approximately an intermediate position of.

Preferably, the outer and inner metal filters 30 and 32 are made of stainless steel and made of approximately 40 mesh, and the fiber filter 34 is made of glass fiber and made of approximately 60 mesh.

One side of this cylinder 20 is covered with a lid 26. The cylinder 20 and the cover 26 are coupled by a cylindrical fixing means described later. Then, the lid 26 closes one side of the cylinder 20.

Alternatively, in another embodiment, the annular cover 27 and the cover 26 of the cylinder 20 may be previously joined by a method such as welding. Alternatively, the cover 27 may be omitted and the cover 26 may be combined with the cylinder by direct welding or the like.

In addition, an outer filter 36 made of a nonwoven fabric or a woven fabric surrounds the outer perforated plates 22 and 24 on the outside of the cylinder 20. This auxiliary filter 36 has a so-called magic tape 36a (hook and loop fastener) attached to both ends thereof, and the magic tape 36a allows the auxiliary filter 36 to be easily attached and detached.

The fixed plate 40 closes the opening 28a of the cylinder 20, and is formed at a position where the air supply port 42 connected to the intake port 2 of the engine is eccentric. The fixed plate 40 is coupled to the cylinder 20 by a cylinder fixing means.

The cylindrical fixing means consists of a support 44 which is attached to the fixed plate 40 by means of welding or the like and intersects the inside of the cylinder 20, and a long bolt 46 provided on the support 44. Therefore, after inserting the support 44 of the fixing plate 40 into the inside of the cylinder 20, the end of the bolt 46 passes through the hole in the center of the cover 26 and fastens with the nut 49. Thereby, the cover 26, the cylinder 20, and the fixing plate 40 are fixed.

At this time, the bolt 46 has an intermediate nut 48. By adjusting the position of the intermediate nut 48 by the intermediate nut 48, one cylinder 20 may be fixed to the fixed plate 40 as shown in FIG. 4, as described below with reference to FIG. 7. When additionally installing the auxiliary cylinder 20A whose length is shorter than the main cylinder 20, the cylinder can be further joined by lengthening the protrusion length of the bolt 46. FIG.

3 to 6, the fixed flange 50 is formed in a cylindrical shape having an insertion hole 52 into which the inlet port 2 of the engine is fitted. The fixed flange 50 has fixed ends 54a and 54b facing each other by the cutouts 54 formed in the radial direction. Therefore, the fixing flange 50 is fixed to the intake port 2 of the engine by inserting the intake port 2 of the engine into the insertion hole 52 and fastening both fixing ends 54a and 54b by bolts and nuts. do.

The fixing flange 50 and the fixing plate 40 are fixed by the fixing means so that the air supply port 42 and the insertion hole 52 coincide with each other. As can be seen from Figs. 5 and 6, the fixing means includes a plurality of screw holes 56a to 56d formed on opposite surfaces of the fixing flange 50 facing the fixing plate 40, and the plurality of screw holes 56a. The screw holes 56a to the fixing flange 50 penetrate through the plurality of fixing holes 40a to 40h formed in the fixing plate 40 and the fixing holes 40a to 40h of the fixing plate 40 corresponding to ˜56d. And a bolt 58 fastened to 56d).

At this time, the plurality of screw holes (56a to 56d) of the fixing flange 50 is formed at four equal intervals 90 degrees around the insertion hole 52, as shown in Figure 5, a plurality of fixing of the fixing plate 40 The holes 40a to 40h are formed at equal intervals of 45 degrees around the air supply port 42, as shown in FIG.

When the four fixing holes 40a, 40c, 40e and 40g of the fixing plate 40 are matched in sequence with the four screw holes 56a to 56d of the fixing flange 50, and fixed with the bolt 58, respectively, FIG. Since the air supply port 42 is eccentrically positioned from the cylinder 20 as shown, the cylinder 20 is installed to be biased upward with respect to the inlet port 2 of the engine. When the fixing plate 400 is rotated by 180 degrees, the four fixing holes 40e, 40g, 40a, and 40c are aligned so as to correspond to the screw holes 56a, 56b, 56c, and 56d in turn, and the fixing plate 400 is fixed by the bolt 58. 20 is provided to be biased downward with respect to the inlet port 2. In this way, the cylinder 20 can be selectively rotated at a 45 degree interval to fix the fixed flange 50, so that when the cylinder 20 is fixed to the fixed flange 50, it is not in contact with the accessories of the surrounding engine. The position of the cylinder 20 can be set so that a space may be utilized.

The fixing means as described above is not limited to the eight fixing holes 40a to 40h formed at equal intervals of 45 degrees as in the above embodiment, but is formed in 12 at equal intervals of 30 degrees to form the cylinder 20 by 30 degrees. The installation position can also be set by rotating at intervals. On the contrary, as shown in FIG. 6, the eight fixing holes 40a to 40h are formed at equal intervals of 45 degrees, and adjacent fixing holes 40a and 40b, fixing holes 40c, and fixing holes are formed. 40d, the fixing hole 40e and the fixing hole 40f, and the long hole connecting the fixing hole 40g and the fixing hole 40h, the installation position can be set at a minute rotation angle between 0 degrees and 45 degrees. It may be.

7, the air cleaner 10 further includes an auxiliary cylinder 20A. As shown in Fig. 7, the auxiliary cylinder 20A has openings formed at both sides thereof, and is formed in a ring shape, and has the same configuration as the main cylinder 20 except that the length L is short. The auxiliary cylinder 20A has a pair of covers 28a facing each other. The cover 28a is annular and has the same shape as the covers 27 and 28 of the cylinder 20. The filter unit 200 is positioned between the covers 28a. In the above example, only one auxiliary cylinder 20A is added. However, when the length of the bolt 46 is further increased, it is also possible to add several auxiliary cylinders 20A. The cylinder and the auxiliary cylinder are arranged in series so that the covers 28 and 28a face each other.

At this time, the cylinder and the auxiliary cylinder may be the same size, or may provide various types of cylinders of different sizes and combine them to form air cleaners of various sizes.

The operation of the air cleaner 10 configured as described above will be described below.

First, as shown by an arrow in FIG. 4, the outside air passes through the auxiliary filter 36, the outer metal filter 30, the synthetic fiber filter 34, and the inner metal filter 32 in order, and then the cylinder 20. Flows inside. As such, in the process of introducing air into the cylinder 20, the foreign matter is first removed by the auxiliary filter 36 made of a nonwoven fabric, and then the outer metal filter 30 and the synthetic fiber filter 34 are continued. ), Since foreign matters are removed by the inner metal filter 32, clean air can be supplied to the combustion chamber of the engine through the inlet port 2.

In this filtering process, each filter is absorbed with a lot of oily substances, especially in ships. At this time, in the case of the auxiliary filter 36, many foreign matters are attached and need to be replaced frequently, but the auxiliary filter 36 is installed outside the cylinder 20, and is attached to and detached from the magic tape 36a. It can be easily removed from the cylinder 20. In addition, since the auxiliary filter 36 is made of a nonwoven fabric or a woven fabric, the auxiliary filter 36 may be reused since it may be removed with oil, gasoline, thinner, or the like to remove oily foreign matter.

In addition, in the case where the outer and inner metal filters 30 and 32 and the fiber filter 34 provided in the cylinder 20 are to be cleaned, a nut 49 for fixing the cylinder 20 and the fixing plate 40 is provided. When loosened, the cylinder 20 can be easily removed from the fixed plate 40. When the separated cylinder 20 is immersed in a solvent such as diesel, gasoline, thinner or the like, and shaken to flow, a space is formed between the outer metal filter 30, the synthetic fiber filter 34, and the inner metal filter 32. So that the solvent can flow in space. Therefore, the foreign matter adsorbed on the outer and inner metal filters 30 and 32 and the synthetic fiber filter 34 can be effectively removed by the flow of the solvent.

In addition, the present invention can further provide an auxiliary cylinder 20A when the amount of air supplied to the combustion chamber of the engine is to be increased. That is, as shown in Fig. 7, the auxiliary cylinder 20A is sandwiched between the main cylinder 20 and the fixed plate 40, and the position of the intermediate nut 48 is extended by the length extended by the auxiliary cylinder 20A. When adjusted, the protruding length of the bolt 46 becomes longer, so that the main cylinder 20 and the auxiliary cylinder 20A can be fixed together. If the length of the bolt 46 is further changed by design change, installation of several auxiliary cylinder 20A is also possible.

Thereby, it is not necessary to make the length of the cylinder 20 differently according to the quantity of air supplied to an engine, but adds or removes the auxiliary cylinder 20A as needed, and fits the air cleaner to the quantity of air which should be supplied to an engine. The dose of can be adjusted appropriately.

Next, a process of installing the air cleaner 10 to the intake port 2 of the engine will be described with reference to FIGS. 3 and 4.

First, the insertion hole 52 of the fixing flange 50 is inserted and wrapped to enclose the intake port 2 of the engine, and the fixing flanges 54a and 54b are tightly fixed by tightening the bolt and the nut. 50 is fixed to the intake port 2 simply and firmly.

Subsequently, the air supply port 42 of the fixing plate 40 and the insertion hole 52 of the fixing flange 50 coincide with each other, and at the same time, the fixing plate 40 is inserted into the four screw holes 56a to 56d of the fixing flange 50. After the four fixing holes 40a, 40c, 40e, and 40g of the fixing holes 40a to 40h are aligned with each other, the bolt 58 is passed through the fixing holes 40a, 40c, 40e, and 40g to form a screw hole ( The fastening plate 40 is fixed to the fixed flange 50 by fastening with 56a-56d.

At this time, as shown in Figure 5 and 6, the air supply port 42 is formed to be eccentric with respect to the fixed plate 40, the plurality of fixing holes (40a to 40h) is around the air supply port 42 Since the cylindrical plate 20 is formed at equal intervals at 45 degrees, the cylinder 20 is biased in one of the up, down, left and right directions about the air supply port 42 by setting the position by rotating the fixing plate 40 at an interval of 45 degrees. . Thereby, the position of the cylinder 20 can be set so that it may not contact with the accessory of the engine located in the periphery.

Subsequently, the support 44 of the fixed body is inserted so as to cross the inside of the cylinder 20, and the end of the bolt 46 is exposed through the lid 26, and then fastened with a nut 49 so as to be exposed to the cylinder ( 20 is fixed, thereby simplifying the installation of the air cleaner 10.

Alternatively, the fixing plate 40 and the fixing flange 50 may be coupled to each other, and then the insertion hole 52 of the fixing flange 50 may be inserted to be wrapped around the intake port 2 of the engine. At this time, the bolt and nut may be loosely fastened between the fixed ends 54a and 54b, and the air cleaner may be turned to position the screw, and then the screw may be finally fixed.

As described above, according to the air cleaner of the marine engine according to the present invention, it is possible to wash and reuse the filter in which foreign substances such as oil, etc., and to further install the auxiliary cylinder to increase the supply of air, At the same time that the installation position of the cleaner is adjusted, the air cleaner is firmly fixed to the intake port of the engine.

Claims (8)

A cylindrical outer perforated plate 22 having a plurality of through holes 22a, a cylindrical inner perforated plate 24 provided inside the outer perforated plate and provided with a plurality of through holes 24a, and the outer perforated plate 22 ) And a tubular body provided with a metal mesh 30 installed between the inner perforated plate 24 and a fiber mesh 34 spaced apart from the metal mesh 30. A cover 26 covering one side of the cylinder, The air cleaner of the engine, characterized in that it is coupled to the other side of the cylinder, and having a fixed plate (40) having an air supply port (42) connected to the inlet (2) of the engine. The air cleaner of claim 1, further comprising an auxiliary filter (36) detachably attached to surround an outer surface of the outer perforated plate of the cylinder. 3. An air cleaner according to claim 1 or 2, comprising two or more of the cylinders, arranged in series so as to be in contact with the sides of the cylinders. 4. The support of claim 3, wherein the support 44 extends from the fixing plate 40, a bolt 46 installed on one side of the support 44 and extending through the cover, and the protrusion of the bolt 46. An air cleaner of the engine, characterized in that it further comprises a fixing device having an intermediate nut (48) for adjusting the length and a nut (49) inserted into the bolt (46) protruding through the cover (26). . With a cylindrical filter, A fixed plate 40 coupled to one side of the cylindrical filter and having an eccentric air supply port 42 connected to the intake port 2 of the engine; A fixed end portion attached to the air supply port 42 and formed in a cylindrical shape so as to form an insertion hole 52 into which the inlet port 2 of the engine is fitted, and facing by a cutout portion 54 formed in a radial direction ( And a fixing flange (50) fixed to the inlet (2) of the engine by tightly fixing both of the fixed ends (54a, 54b). According to claim 5, The fixing flange 50 is provided with a plurality of holes arranged at equal intervals along the circumference, the fixing plate 40 is a hole corresponding to each of the plurality of holes provided in the fixing flange 50 A pair of holes, the air cleaner of the engine, characterized in that a plurality of holes are provided around the air supply port. The cylindrical inner perforated plate according to claim 5 or 6, wherein the filter includes a cylindrical outer perforated plate 22 having a plurality of through holes 22a, and a cylindrical inner perforated plate provided inside the outer perforated plate and provided with a plurality of through holes 24a. 22 and 24, and outer and inner metal meshes 30 and 32 provided to face each other on the inner surface of the outer perforated plate 22 and the outer surface of the inner perforated plate 24, and the outer and inner metal meshes 30 and 32, respectively. The air cleaner of the engine, characterized in that provided with a fiber net (34) installed to be spaced apart from the metal mesh between). In the filter used for the air cleaner for filtering the air supplied to an engine, A cylindrical outer perforated plate 22 having a plurality of through holes 22a, a cylindrical inner perforated plate 24 provided inside the outer perforated plate and provided with a plurality of through holes 24a, and the outer perforated plate and the inside As the metal mesh located between the perforated plates, the inner metal mesh 32 and the outer and inner sides adjacent to the outer surface of the outer metal mesh 30 and the inner perforated plate 24 are provided adjacent to the inner surface of the outer perforated plate 22. The fiber mesh 34 installed to be spaced apart from the metal mesh between the metal meshes 30 and 32, and the outer perforated plate 22 and the inner perforated plate 24 at sides of the outer perforated plate 22 and the inner perforated plate 24. Cylindrical filter, characterized in that the annular cover (27,28) covering the gap between.