JP2003097278A - Supercharger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cool the high temperature air pressurized in a supercharger to sufficiently supply into the cylinders of an internal combustion engine. SOLUTION: The central opening 4 of a heat exchanger 3 is installed continuously to the discharge port 2 of an air pressurizing supercharger 1. The prescribed numbers of a first fluid passage 5 opening from the center of the heat exchanger 3 toward both end directions thereof, and those of a second fluid passage 6 opening perpendicular to the opening direction of the first passage 5, are layered alternately. A partition plate 8 is installed at nearly center of the opening width of the second passage 6 in the opening direction. The inflow and outflow tanks 8 and 9 are disposed at one opening end of the second passage 6 interposing the partition plate 8 as a boundary, and one common tank 10 is disposed at the other opening end thereof. Further, the end openings 11 and 11, and a plurality of pipe-mounting ports 12 are installed at the ends of the heat exchanger 3 except the central side end thereof, and a blocking plate 13 is disposed at the side opposite to the discharge port 2 of the supercharger 1. The objective supercharger 14 is constituted as mentioned above.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supercharger for cooling air pressurized by an air pressurizing supercharger.

[0002]

2. Description of the Related Art In a conventional air pressure supercharger, hot air pressurized by the air pressure supercharger is used as it is, and a plurality of pipe mounting ports are attached to the discharge port of the air pressure supercharger. The provided one is generally used.

[0003]

In this conventional air pressure supercharger, the temperature of the air is increased when the air pressure is increased by the air pressure supercharger, so that the air pressure supercharger is not heated. According to Boyle-Charle's law, the air volume expands by 1/273 each time the temperature rises by 1 ° C, and the amount of oxygen per unit volume of pressurized air decreases compared to room temperature. In addition, there is a problem that the combustion efficiency of the internal combustion engine deteriorates as the amount of oxygen per unit volume decreases, and a large amount of carbon monoxide (CO) gas or black smoke is generated in the exhaust gas. However, since the combustion temperature in the cylinder of the internal combustion engine increases, there is a problem that the nitrogen oxide (NO _x ) in the exhaust gas increases and the exhaust gas temperature increases. Further, in this conventional air pressure supercharger, since the capacity from the discharge port of the supercharger to the outlet of the discharge pipe is small, it is possible to immediately follow up with the inside of the cylinder of the internal combustion engine when suddenly accelerating. There is a problem that it is difficult to supply a large amount of pressurized air.

The present invention solves the above problems of the conventional air pressure supercharger, cools the high temperature pressurized air from the supercharger, and increases the oxygen amount per unit volume of the pressurized air. To improve the combustion efficiency of the internal combustion engine, to reduce the generation of bad gas in the exhaust gas, and to constantly supply compressed air to the cylinder of the internal combustion engine. Is.

[0005]

In the air pressure supercharger of the present invention, the central opening of the heat exchanger is continuously provided at the discharge port of the air pressure supercharger, and the center of the heat exchanger is provided. A first fluid passage that opens in both ends and a second fluid passage that opens in a direction perpendicular to the opening direction of the first fluid passage are alternately stacked in a predetermined number, and the second fluid passage is formed. A partition plate is provided substantially in the center of the opening width in the opening direction, and an inflow tank and an outflow tank are provided at the opening end of one side of the second fluid passage with the partition plate as a boundary and the second fluid is provided. Provide one common tank at the other open end of the passage for
Further, end openings are provided at both ends in one direction of the heat exchanger, a plurality of pipe mounting openings are provided respectively, and a closing plate is provided on the side opposite to the discharge opening of the air pressure supercharger. It is a thing.

High-pressure compressed air pressurized by the supercharger and supplied to the first fluid passage integrally provided in the supercharger is supplied from the discharge port of the supercharger to the second fluid of the supercharger. Refrigerant gas or normal water is supplied from the inflow tank to the outward path partitioned by the partition plate to cool the high temperature pressurized air in the first fluid passage, and the refrigerant gas or the like that reaches the other end is U by individual common tank
Since the first fluid passage and the second fluid passage are alternately stacked by being turned and supplied to the return passage partitioned by the partition plate, the high-temperature pressurized air passing through the first fluid passage is It is forcibly cooled in a narrow space in a short distance by the refrigerant gas passing through the reciprocating path of the second fluid passage. Further, by cooling the high temperature pressurized air from the supercharger, for example, the pressurized air at about 120 ° C. to bring the temperature of the pressurized air to about 70 ° C., the oxygen amount per unit volume of the pressurized air is increased. Become.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a supercharger will be described with reference to the drawings as an embodiment of the present invention. As shown in FIGS. 1 to 5, two heat exchangers 3, 3 integrated with the air pressurizing supercharger 1 are provided on the discharge port 2 of the air pressurizing supercharger 1 in a predetermined horizontal direction. A central opening 4 having a rather large space continuous with the discharge port 2 of the air pressure supercharger 1 is provided between the heat exchangers 3 and 3 with the space therebetween. The central opening 4 having this rather large space is provided as a central air reservoir chamber. This heat exchanger 3
Is a first fluid passage 5 made of an aluminum alloy, which is open from the center to both ends from the central opening 4 of the heat exchanger 3 to both ends in the left-right direction in the drawing which is one direction, and the first fluid passage 5 And a second fluid passage 6 made of an aluminum alloy, which is opened in the front-rear direction on the drawing which is a direction orthogonal to the opening direction of the above, are alternately laminated in a predetermined number, and the second fluid passage 6 is opened. A partition plate 7 is provided at approximately the center of the width in the front-rear direction in the drawing, which is the opening direction. An inflow tank 8 and an outflow tank 9 are provided with the partition plate 7 as a boundary at the opening end on the front side in the drawing, which is one of the second fluid passages 6, and the other of the second fluid passages 6 is provided. One common tank 10 is provided at the open end. Further, except for the ends of the heat exchangers 3 and 3 on the center side in the drawing, the left end of the left heat exchanger 3 and the right end of the right heat exchanger 3 have ends with a slightly larger space. Part opening parts 11, 11 are provided respectively, and the end opening parts 11, 11 having a slightly large space part are respectively provided as end air collecting chambers. And 1 of the heat exchanger 3
A plurality of pipe mounting openings 12 are provided at both ends in the left-right direction on the drawing, and a closing plate 13 is provided on the upper end on the opposite side to the discharge opening 2 of the supercharger for sealing. The supercharger 14.

In the supercharger 14 of this embodiment, air is taken in through the air inlet at the lower rear side as shown by the arrow in FIG. 4, and the air pressurizing supercharger 1 rotates in the direction of the arrow. The air is pressurized. The high temperature pressurized air discharged from the discharge port 2 of the air pressure supercharger 1 is made of an aluminum alloy which is provided in both the left and right directions from the central opening 4 of the heat exchanger 3.
It is supplied to the fluid passages 5, 5. Refrigerant gas or water is supplied from the inflow tanks 8 and 8 to the aluminum alloy second fluid passages 6 and 6 as indicated by arrows in FIG. By reciprocating in this way, the high temperature pressurized air is forcibly exchanged twice with the refrigerant gas or water that reciprocates over a short distance, so that it is well cooled. The cooled pressurized air passes through the end openings 11, 11 provided at the left and right ends of the heat exchangers 3, 3 integrated with the air pressurizing supercharger 1, and a plurality of pipe mounting ports 12 are provided. Eject from each and use as usual. This refrigerant gas or water moves from one side passage 6'partitioned by the partition plate 7 of the second fluid passage 6 from the front side to the rear side, and reaches the one common tank 10 provided on the rear side. Alternatively, the water moves in the common tank 10 from the center to the end in the left-right direction, and moves in the other passage 6 ″ partitioned by the partition plate 7 of the second fluid passage 6 from the rear to the front so that the refrigerant. Gas or water reciprocates in both passages 6 ′, 6 ″ of the second fluid passage 6. The refrigerant gas or water that has reached the outflow tank 9 is discharged from the outflow tank 9.

In the supercharger 14 of this embodiment, the inflow tank 8
In the above description, the tank is provided on the center side and the outflow tank 9 is provided on the end side. It is good to put both of these tanks in one tank at a predetermined position, that is, the second fluid passage 6
It is also possible to provide a partition plate at the same position as the partition plate 7 and to use one tank for two tanks. Supercharger 14 of this embodiment
In the above description, the partition plate 7 is provided in the second fluid passage. However, the inner fin serves as a partition plate by providing an inner fin inside the second fluid passage instead of this partition plate. By doing so, the partition plate may be omitted.

When the heat exchanger 3 to be integrated with the air pressure supercharger 1 like the supercharger 14 of this embodiment is manufactured, as shown in FIG. A fin 22 serving as an inner fin for the first fluid passage is placed in the left-right direction in the drawing, and a fin 24 serving as an inner fin for the second fluid passage is provided on an aluminum alloy plate 23.
Is placed in the front-rear direction in the front-rear direction except for the center portion in the left-right direction, and an aluminum alloy partition plate 28 is placed in the front-rear direction at the center portion in the left-right direction of the plate 23 as one unit. A predetermined number of layers are stacked, an aluminum alloy plate 25 is placed on the uppermost part, and aluminum alloy closing plates 26 are respectively provided at the front and rear ends of the plate 21 and the plate 23 on the plate 21, and the front and rear ends are provided. Close. Then, aluminum alloy closing plates 27 are respectively provided at the left and right ends of the plate 23 and the plate 21 on the plate 23, and the left and right ends are closed and then brazed to make a heat exchanger body. Tanks (not shown) are provided at predetermined positions in the heat exchanger body in the same manner as described above, and then brazed to make a heat exchanger. Then, the heat exchanger is brazed to the discharge port of the air compression supercharger to form the supercharger.

As another method of manufacturing a heat exchanger, flat tubes 31 made of aluminum alloy which are opened in the left-right direction are provided at a predetermined number of intervals as shown in FIG. After the aluminum alloy closing plates 32, 32 are provided between both ends in the left-right direction and in the front-rear direction, and the aluminum alloy partition plate 33 is provided in the left-right center part, in the front-rear direction. Make a heat exchanger body by brazing. A heat exchanger is manufactured by using this heat exchanger body in the same manner as described above.

[0012]

According to the supercharger of the present invention, a heat exchanger is provided at the discharge port of the air pressure supercharger, and the first fluid passage is opened from the center of the heat exchanger toward both ends, and the first fluid passage is provided. A predetermined number of second fluid passages that are opened in a direction perpendicular to the opening direction of the fluid passages are alternately laminated and a partition plate is provided in the second fluid passage in the center of the opening width in the opening direction. An inflow tank and an outflow tank are provided at one open end of the second fluid passage with the partition plate as a boundary, and one common tank is provided at the other open end of the second fluid passage. Are provided, and further, end openings are provided at both ends in one direction of the heat exchanger, and a plurality of pipe mounting openings are provided, respectively, on the opposite side of the discharge port of the air pressure supercharger. Since the closing plate is provided, the first fluid passage is pressurized by the air pressure supercharger and is heated to a high temperature. Pressurized air is supplied from the outlet of the supercharger for air pressurization, and refrigerant gas or normal water is supplied from the inflow tank to the second fluid passage of the supercharger, and the refrigerant is supplied by one common tank at the other end. By making a U-turn of gas or the like in the second fluid passage partitioned by the partition plate, the hot compressed air in the first fluid passage can be forcibly and well cooled by the refrigerant gas in the second fluid passage. It is possible to cool the compressed air in a narrow space in a short distance. By cooling the compressed air in this manner, the oxygen amount per unit volume of the compressed air can be increased, and by increasing the oxygen amount per unit volume of the compressed air, the combustion efficiency of the combustion engine can be improved. In addition, it is possible to reduce the generation of defective gas in the exhaust gas.

In the supercharger of the second aspect, since the central opening is provided as the central air collecting chamber and the end opening is also serving as the end air collecting chamber, the air collecting chamber is pressurized. Since the air is stored, it is possible to immediately follow up when rapidly accelerating a vehicle or the like to supply a large enough amount of pressurized air to the cylinder of the internal combustion engine, and to smoothly drive the vehicle or the like. Can accelerate rapidly.

In the supercharger of the third aspect, since the inner fins are provided inside the first fluid passage, the high-temperature pressurized air in the first fluid passages divided by the inner fins is almost all. It is possible to uniformly rectify the heat and the heat of the hot compressed air is well conducted by the inner fins, so that the hot pressurized air can be cooled well.

In the supercharger of claim 4, since the inner fin is provided inside the second fluid passage, the refrigerant gas and the like are substantially evenly distributed in the second fluid passage divided by the inner fin. In addition to being able to rectify, low temperature such as refrigerant gas is well conducted to the second fluid passage wall by the inner fins, so that the high temperature pressurized air in the first fluid passage can be cooled well.

In the supercharger of the fifth aspect, the inner fin provided inside the second fluid passage also functions as a partition plate of the second fluid passage, so that it is necessary to provide a separate partition plate. In addition, the supercharger can be made inexpensive without much effort.

In the supercharger according to the sixth aspect of the present invention, since a partition plate is provided in the center of one tank to form two tanks, an inflow tank and an outflow tank, two separate tanks are produced. There is no need, and the turbocharger can be made inexpensive without much effort.

[Brief description of drawings]

FIG. 1 is a front view of a product of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a plan view of the same with the closing plate removed.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is an enlarged perspective view of the heat exchanger body before assembly.

FIG. 6 is an enlarged cross-sectional view of another heat exchanger body.

[Explanation of symbols]

1 Air pressure supercharger 2 outlet 3 heat exchanger 4 Central opening of heat exchanger 5 First fluid passage 6 Second fluid passage 7 dividers 8 inflow tank 9 spill tank 10 common tank 11 End opening of heat exchanger 12 Pipe mounting port 13 Closure plate 14 Supercharger

Claims (6)

[Claims] 1. An air pressurizing supercharger in which a plurality of pipe mounting ports are provided at the exhaust port of the air pressurizing supercharger, wherein the exhaust port of the air pressurizing supercharger has a central opening of a heat exchanger. And a first fluid passage that opens from the center to both ends from the central opening of the heat exchanger to both ends in one direction, and in a direction perpendicular to the opening direction of the first fluid passage. A predetermined number of alternately open second fluid passages are provided, and a partition plate is provided in the second fluid passage in the center of the opening width in the opening direction. One of the second fluid passages is provided. An inflow tank and an outflow tank with the partition plate as a boundary, respectively, and one common tank at the other open end of the second fluid passage, and the heat exchanger of the heat exchanger. Except for the end on the center side, the other end has an end opening and mounting for multiple pipes A supercharger in which each port is provided and a closing plate is provided on the opposite side of the discharge port of the air pressurizing supercharger. 2. The supercharger according to claim 1, wherein the central opening portion is provided also as the central air collecting chamber, and the end opening portion is also provided as the end air collecting chamber. 3. The supercharger according to claim 1, wherein the first fluid passage is provided with an inner fin inside the first fluid passage. 4. The supercharger according to claim 1, wherein the second fluid passage has inner fins provided inside the second fluid passage. 5. The supercharger according to claim 1, wherein the partition plate of the second fluid passage is an inner fin provided inside the second fluid passage. 6. The inflow tank and the outflow tank are tanks in which a partition plate is provided substantially at the center of one tank.
Supercharger as described.