KR20130032143A - Radiator for engine generator - Google Patents

Abstract

PURPOSE: A radiator for an engine generator is provided to reduce number of components by manufacturing a simple structure. CONSTITUTION: A radiator for an engine generator comprises an upper tank, a lower tank, and a core(300). An inlet hole(110) is formed on the upper surface of the upper tank. An inlet pipe(120) is formed to a side of the upper tank and connects to a water jacket. The lower tank is symmetrically arranged to the upper tank and comprises an outlet pipe(210) and a discharging hole(220). The core is connected between the upper tank and the lower tank and comprises an upper plate and a lower plate. A flange(450) is formed in an end part of an opening part of the upper and lower plates. A reinforcement part(460) is formed in circumference of inside and outside of the upper and lower plates. A plurality of coupling holes is formed to corresponding surface of the flange, the upper plate, and the lower plate.

Description

Radiator for engine generators

The present invention relates to a radiator, and more particularly, to reduce the production cost and work time to reduce the production cost, and also to enhance the safety and durability of the engine generator non-ferrous metal radiator that can improve the safety It is about.

The internal combustion engine ignites and burns gas at high temperature and high pressure, which generates heat during operation.If it is left, it is overheated, which causes the cylinder and piston to be weakened by thermal expansion or deterioration, and causes abnormal abrasion due to deterioration of lubrication function. This causes knocking or premature ignition, and the output is significantly reduced.

Therefore, by installing a water jacket around the cylinder and circulating the coolant therein to cool a part of the heat generated from the internal combustion engine. If this coolant is left as it is, it loses its cooling function.

On the other hand, emergency power generators are installed in large buildings or apartment buildings or factories in case of a power outage, and mobile generators are used to operate heavy equipment even in construction sites where power is difficult to supply.

These generators are mainly manufactured integrally with the internal combustion engine to produce electric power by rotating the armature in the generator body with the rotational force obtained from the internal combustion engine. Therefore, a cooling device for discharging heat generated from the internal combustion engine into the atmosphere through the coolant is essential. to be.

That is, a water-cooled chiller that cools by heat exchange with the atmosphere while installing a water jacket around the cylinder block of the engine and circulating the heated coolant through the radiator is mainly used as the chiller for the engine generator.

Figure 1 shows a so-called down flow radiator of the components of the engine generator cooling apparatus according to the prior art. Referring to FIG. 1, the radiator 1 is mainly composed of an upper tank 10, a lower tank 20, a side plate member 30, and a core 40.

The upper tank 10 is connected to the water jacket through the inlet pipe 11, the pressure cap 12 is coupled to the injection hole 15 formed on the upper surface. The pressure cap 12 is provided with a pressure valve (not shown) that opens when the pressure in the radiator 1 is higher than atmospheric pressure, and when the pressure valve is opened, the coolant and gas in the upper tank 10 are allowed to overflow the overflow pipe 12a. Through the outside. In addition, one side of the upper tank 10 is provided with a see-through window 13 so as to grasp the internal water level.

The lower tank 20 is symmetrically disposed with the upper tank 10 and is connected to the water jacket through the outlet pipe 21. Cooling water cooled down from the upper tank 10 via the core 40 is returned to the water jacket again through the lower tank 20. A lower surface of the lower tank 20 is equipped with a base 22 for fixing to the bottom of the facility, the side is provided with a bleeder valve 23 used to extract the water and air in the radiator.

The core 40 is composed of a plurality of tubes (41) installed side by side up and down and cooling fins (42) fitted between the tubes (41). The cooling fins 42 are made of any one of various kinds, such as plate fins, corgate fins, honeycomb fins, and the like.

In addition, the upper and lower left and right sides of the core 40 are attached to the upper tank 10, the lower tank 20 and the side plate member 30, respectively, and between the upper tank 10 and the lower tank 20, a gasket ( 45, 46 through the bolt holes 14a, 24a formed in the upper tank 10 and the lower tank 20 flanges 14, 24, and the bolt holes 45a, 46a formed in the gaskets 45, 46; Bolted together.

However, the conventional radiator for an engine generator is a method of welding the flanges 14 and 24 of the upper tank 10 and the lower tank 20 to separate plates, and then skilled workers manually weld the opening edges of each tank by hand. Because of the high cost of materials and labor costs and a lot of work time, the production cost is inevitably increased, and due to the complicated assembly process, there is a problem of low productivity and high defective rate.

In addition, when the upper tank 10 and the lower tank 20 are made of a nonferrous metal such as copper or aluminum, the strength is weak, so that the durability and the like may be easily deformed and broken by external force.

The present inventors, while focusing on solving the above-mentioned matters and problems, can reduce manufacturing man-hours and work time, and develop the non-ferrous metal radiator which can improve the safety and durability by reinforcing strength. Was created and completed.

Therefore, an object of the present invention is to provide a radiator for an engine generator that can reinforce the strength while reducing the labor and manufacturing time.

In order to achieve the above object, an embodiment of the present invention, the inlet pipe is formed on the upper surface and the inlet pipe is connected to the water jacket on the side, and the symmetrical arrangement with the upper tank and the water jacket on the side A lower tank having a connected outlet pipe and an outlet, and a core interposed between the upper tank and the lower tank and having an upper plate and a lower plate formed thereon, and openings of the upper and lower tanks have flanges and inner and outer circumferences. The reinforcement is integrally formed on the surface, and a radiator for an engine generator, in which a plurality of fastening holes are formed on surfaces corresponding to each other of the flange, the upper, and the lower plate, are provided.

As a result, the present invention can greatly reinforce the strength while reducing the manufacturing labor and assembly time of the radiator.

In another embodiment of the present invention, the upper tank is formed to correspond to the upper plate while covering the upper tank, and a flange is formed at the end of the opening, and a reinforcement is integrally formed at the inner and outer circumferential surfaces thereof, and the upper tank is formed at the flange. A plurality of fastening holes corresponding to the fastening holes of the inlet is formed, the inlet pipe passing portion is formed in the upper surface to pass through the inlet, the inlet pipe passing portion is formed in the side to pass the inlet pipe, the heat dissipation hole on the outer peripheral surface with a predetermined interval A plurality of upper reinforcing caps are formed corresponding to the lower tank, and are combined with the lower plate while covering the lower tank. Flange is formed at the end of the opening, and reinforcement is integrally formed at the inner and outer circumferential surfaces, and the fastening hole of the lower tank is formed at the flange. And a plurality of fastening holes corresponding to each other, and the outlet pipe and the outlet are passed through the side surface. The outlet pipe passing portion and the outlet opening portion is formed, the outer periphery of the heat dissipation hole may be further provided with a plurality of lower reinforcing cap formed at a predetermined interval.

According to the present invention, which has the above-described solution and configuration, the flanges of the upper tank and the lower tank are integrally formed to form a single member, thereby simplifying the structure, thereby reducing the number of labors and the number of parts according to the manufacturing process. Simple and short work time can reduce production cost and improve convenience and efficiency of assembly process.

In addition, the upper reinforcement cap and the lower reinforcement cap cover the upper tank and the lower tank, respectively, and reinforce the strength of the upper tank and the lower tank, thereby preventing the appearance of the upper tank and the lower tank from being deformed or damaged by external forces, such as a conveying process. The safety and durability according to the use can be greatly improved.

1 is a perspective view showing an example of a radiator according to the prior art,
2 is a perspective view of an exploded state of a radiator according to an embodiment of the present invention;
3 is a perspective view of a state in which the radiator is coupled according to an embodiment of the present invention;
4 is an enlarged cross-sectional view showing a local portion of a radiator according to an embodiment of the present invention;
5 is an enlarged cross-sectional view showing a local portion of a radiator according to another embodiment of the present invention;

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions in the present invention, which specifies that the concept should be construed as a concept consistent with the technical spirit of the present invention and commonly understood or commonly recognized in the art.

In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

2 is a perspective view showing an exploded state of the radiator according to an embodiment of the present invention, Figure 3 is a perspective view showing a state in which the radiator combined according to an embodiment of the present invention, Figure 4 is a radiator according to an embodiment of the present invention An enlarged cross-sectional view showing the localization of.

1 to 3, the radiator according to an embodiment of the present invention is the upper tank 100, the lower tank 200, the core 300, the upper reinforcement cap 400 and the lower reinforcement cap 500 It is roughly divided into, and is configured to include it.

The upper tank 100 is a portion in which coolant flows from the engine and circulates, and is formed in a rectangular cylindrical shape having an open lower surface, and an injection hole 110 is integrally formed on the upper surface thereof so as to inject cooling water. The 110 is equipped with a cap (not shown) that can maintain a proper pressure in the cooling water line, the inlet pipe 120 for connecting to the water jacket (not shown) of the engine and a separate hose integrally It is formed.

In addition, a flange 250 having a predetermined width is integrally formed at the edge portion of the opening of the upper tank 100 by press molding, and the face and the position of the upper surface of the flange 250 facing the upper plate 310 of the core. There are formed a plurality of fastening holes 155 into which bolts and the like can be inserted at predetermined intervals.

In addition, the inner and outer circumferential surface of the upper tank 100 is integrally formed with a plurality of reinforcement portions 160 of a curved shape with respect to the outer side surface.

Here, the upper tank 100 may be provided with a bypass hose for releasing air from the cooling system or a low water level sensor for detecting and confirming the amount of cooling water according to the cooling system.

The lower tank 200 is a portion for sending the coolant having a lower temperature while passing through the core 300 to the engine. The lower tank 200 is formed in a rectangular cylindrical shape having an upper surface open to form a lower plate 320 of the core symmetrically with the upper tank 100. ) Is coupled to the front side, the outlet pipe 210 for integrally connecting the water jacket of the engine and a separate hose is integrally formed, and the outlet pipe 210 at regular intervals, such as replacement of the coolant The outlet 220 for is formed.

In addition, a flange 250 having a predetermined width is integrally formed at the edge portion of the opening of the lower tank 200 by press molding or the like, and a surface and a position facing the lower plate 320 of the core of the flange 250. There are formed a plurality of fastening holes 255 into which bolts and the like can be inserted at predetermined intervals.

In addition, the inner and outer circumferential surface of the lower tank 200 is formed integrally with a plurality of reinforcement portion 260 of a curved shape with respect to the outer side.

Here, the lower tank 200 may be provided with a temperature sensor for preventing overheating due to abnormal or other mechanical operation of the cooling system.

The core 300 is a portion that performs heat exchange as the cooling water passes, and includes a tube passing the cooling water and a cooling fin installed between the tube and the tube to increase the cooling effect.

Here, the core 300 is a zigzag tube and the fins are formed between the honeycomb fins of which hexagonal cooling fins are formed between the tubes and plate fins that fit the tubes on a large number of thin plates punched to allow the tubes to enter. And a common core classified according to the type of cooling fin, such as a corrugated fin that zigzags a thin cooling fin between the tubes between two plates.

In addition, the core 300 is a tube in which the coolant flows is vertically installed, but it is preferable to apply a down flow method in which the coolant flows from the top to the bottom, but the present invention is not limited thereto. It is of course possible to employ a cross flow method in which the coolant flows sideways. At this time, the upper tank 100 is an inlet tank into which the coolant is introduced, and the lower tank 200 is an outlet tank from which the coolant is discharged.

The core 300 may be formed of a material such as aluminum alloy, which is excellent in thermal conductivity and easy to process, and which is light in weight and economically advantageous.

The upper reinforcement cap 400 is coupled to the upper plate 310 of the core together with the upper tank while covering and protecting the upper tank 100, while firmly surrounding the upper tank 100 by the upper tank 100 by external force. ) Is preferably formed in a shape corresponding to that of the upper tank 100 to prevent deformation or breakage, and the inner space of the upper tank 100 to cover the upper exposed surface of the upper tank 100 more stably. It is slightly larger than the internal space of.

That is, the upper reinforcement cap 400 is formed in the shape of a square cylinder having a lower surface like the upper tank 100, and the flange 450 is integrally formed at the edge portion of the opening through press molding or the like, and the flange ( A plurality of fastening holes 455 are formed at surfaces and positions facing the upper plate 310 of the core 450 to insert bolts at predetermined intervals.

In addition, on the inner and outer circumferential surfaces of the upper reinforcing cap 400, a plurality of reinforcement portions of a curved shape with respect to the outer side surface are integrally formed with a predetermined interval, and the upper reinforcement portions 460 are interposed therebetween. At least one heat dissipation hole 480 is formed to allow the heat of the tank 100 to be discharged smoothly.

In addition, the upper reinforcing cap 400 has an injection hole through-hole 410 is formed to pass through the injection hole 110 when combined with the upper tank 100 so that contact interference does not occur, the inlet pipe 120 on the side The inlet pipe passing portion 420 is passed through.

Here, the upper reinforcing cap 400 and the upper tank 100, as shown in Figure 5, by forming and coupling so as to form a gap (g) of a predetermined interval on the surface facing each other by the upper tank 100 to the external force Can be more stably prevented from being deformed or broken.

The lower reinforcement cap 500 is coupled to the lower plate 320 together with the lower tank 200 while covering and protecting the lower tank 200. The lower tank is firmly wrapped around the lower tank 200 by an external force. In order to prevent the 200 from being deformed or damaged, the lower tank 200 may be formed in a shape corresponding to that of the lower tank 200. The inner space of the lower tank 200 may more stably cover the lower exposed surface of the lower tank 200. It is slightly larger than the internal space of).

That is, the lower reinforcement cap 500 is formed in the shape of a square cylinder having an upper surface open like the lower tank 200, and the flange 550 is integrally formed at the edge portion of the opening through press molding or the like, and the flange ( A plurality of fastening holes 555 for inserting bolts or the like at a predetermined interval are formed on a surface and a position facing the lower plate 320 of the core 550.

In addition, the inner and outer circumferential surface of the lower reinforcement cap 500 is formed integrally with a plurality of reinforcement portions 560 of a curved shape with respect to the outer side, and the lower reinforcement portion 560 between the lower At least one heat dissipation hole 580 is formed to allow the heat of the tank 200 to be discharged smoothly.

Here, the lower reinforcement cap 500 and the lower tank 200 are formed such that a gap g of a predetermined interval is formed on surfaces facing each other, such as a coupling structure between the upper reinforcement cap 400 and the upper tank 100. By combining, the lower tank 200 can be more stably prevented from being deformed or broken by an external force.

On the other hand, the gasket (G) when the bolt is fastened so as not to leak the cooling water on the surface in contact with each other between the upper tank 100 and the upper plate 310 and between the lower tank 200 and the lower plate 320. desirable.

In addition, the surface between the upper tank 100 and the upper reinforcing cap 400 and the lower tank 200 and the lower reinforcing cap are in contact with each other to prevent each flange from being deformed or damaged during bolting. ) Is preferable.

The radiator according to the embodiment of the present invention configured as described above is a non-ferrous metal such as copper, aluminum, etc., the flange of the upper tank 100 and the lower tank 200 and the flange of the upper reinforcing cap 400 and the lower reinforcing cap 500 are integrated. Because it is molded in, the cooling efficiency is very excellent and the production cost can be greatly reduced because the number of work and parts are reduced during production and the working time is shortened.

In addition, since the upper reinforcing cap 400 and the lower reinforcing cap 500 securely cover the upper tank 100 and the lower tank 200, respectively, they reinforce the strength of use of the upper tank 100 and the lower tank 200. This further increases the appearance of the upper tank 100 and the lower tank 200 due to an external pressure, such as an abnormal pressure on the cooling water line or a transport process, to prevent the deformation of the upper tank 100 and the lower tank 200 easily, and leads to a large safety accident. Can be prevented.

On the other hand, the present invention is not limited by the above-described embodiment and the accompanying drawings, and can be changed to other embodiments equivalent to substitutions and equivalents within the scope without departing from the spirit of the present invention is common in the art It will be apparent to those who have knowledge.

100: upper tank 110: injection hole
120: inlet pipe 150: flange
155: fastening hole 160: reinforcement
200: lower tank 210: outer pipe
220: outlet 250: flange
255: fastening hole 260: reinforcement
300: core 310: upper plate
315: fastening hole 320: lower plate
325: fastening hole 400: upper reinforcing cap
410: injection hole passage portion 420: inlet pipe passage portion
450: flange 455: fastening hole
460: reinforcement 500: lower reinforcement cap
510: outlet pipe passage portion 520: outlet passage portion
550: flange 555: fastening hole
560: reinforcement portion G: gasket
W: flat iron

Claims (2)

An upper tank having an inlet pipe formed on an upper surface thereof and an inlet pipe connected to a water jacket on a side thereof; A lower tank disposed symmetrically with the upper tank and having an outlet pipe and an outlet formed at a side thereof and connected to the water jacket; In the radiator is coupled between the upper tank and the lower tank and composed of a core having an upper and a lower plate,
A flange is formed at an opening end of the upper and lower tanks, and a reinforcement part is integrally formed at inner and outer circumferential surfaces, and a plurality of fastening holes are formed at surfaces corresponding to each other of the flange and the upper and lower plates. radiator.
The method of claim 1,
The upper tank is formed in correspondence with the upper plate while covering the upper tank, and a flange is formed at an end of the opening, and a reinforcement is integrally formed at the inner and outer circumferential surfaces thereof, and the flange corresponds to a fastening hole of the upper tank. A plurality of fastening holes are formed, an injection hole passage part is formed in the upper surface to pass the injection hole, an inlet pipe passage part is formed in the side surface so that the inlet pipe passes, and a plurality of upper reinforcement holes formed at a predetermined interval on the outer circumferential surface A cap;
It is formed in correspondence with the lower tank and is coupled to the lower plate while covering the lower tank, a flange is formed at the end of the opening, and a reinforcement is integrally formed at the inner and outer circumferential surfaces thereof, and the flange corresponds to the fastening hole of the lower tank. A lower reinforcing cap having a plurality of fastening holes formed therein, an outer pipe passing portion and an outlet opening passing portion formed at a side thereof, and a plurality of heat dissipating holes formed at regular intervals on an outer circumferential surface thereof;
Radiator for an engine generator, characterized in that it further comprises.

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