JPS6073013A - Intake-gas cooling apparatus for engine equipped with supercharger - Google Patents

Abstract

PURPOSE:To permit the efficient cooling operation for a supercharger continuously from an outside temp. to a low temp. by cooling intake gas in two stages of the first and the second cooling systems and allowing a metal hydride to be regenerated in one heat exchanger during the time when the cooling for the supercharger is performed in the other heat exchanger, in each system. CONSTITUTION:The supercharged gas having a high temp. of, for example, about 140 deg.C is allowed to flow into the first intake passage 3A by switching selector valves 6 and 26, and then cooled to about 85 deg.C by the heat exchange in a heat exchanger 9A. In this case, hydrogen transfers to a metal hydride 12B side from a metal hydride 11A side, and the heat generated through the occlusion of hydrogen in a heat exchanger 10B is released to cooling wind W. The supercharged gas is cooled to about 30 deg.C in a heat exchanger 10A. Similarly, the metal hydride transfers between the heat exchanger 10A and the heat exchanger 9B, and when each cooling capacity of the heat exchangers 9A and 10A reduces, the supercharged gas is allowed to flow into the second intake passage 3B by switching the selector valves 6 and 26.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an intake air cooling device for a supercharged engine that cools intake air by utilizing an endothermic reaction during water bulk dissociation of a metal hydride. It is.

(Prior art) A conventional example of an intake cooling bag (so-called intercooler) for a supercharged engine is, for example, Utility Model No. 3; 7-1.
The type that cools the intake air using the refrigerant of the cabin cooler, as disclosed in Publication No. 7723 (first conventional example),
Akira Miki! 7-/3113.2/ is an air-cooled type that cools intake air with cooling air (second
Conventional example), water-cooled type in which intake air is cooled by engine cooling water as shown in Japanese Utility Model Application Publication No. 57-137735 (third conventional example), etc.; however, in the first conventional example mentioned above, Since the cooler compressor is driven by the engine, there is a problem that the engine output decreases, and in the second and third conventional examples, the intake air is cooled to below the outside air temperature or the cooling water temperature. However, there was a problem in that it was difficult to do so, and a sufficient intake air cooling effect could not be expected.

(Object of the Invention) In view of the problems with conventional intake air cooling devices as described above, the present invention provides an intake air cooling system for a supercharged engine that can dynamically cool intake air without causing a decrease in engine output. This was done for the purpose of providing equipment.

(Structure of the Invention) The present invention provides a supercharged engine in which the intake passage downstream of the supercharger is configured with a first intake passage and a λ-th intake passage.
The flow of supercharging air into the intake passage and the second intake passage is alternately performed by a switching valve, while the first intake passage and the second intake passage have a first intake passage which generates heat when storing hydrogen and absorbs heat when releasing hydrogen. A first heat exchanger containing a metal hydride is installed so as to be able to exchange heat with the supercharged air flowing in both of the intake passages, and each of the first heat exchangers that enters the first and second intake passages. A second metal hydride, which generates heat when absorbing hydrogen and absorbs heat when releasing hydrogen, and whose hydrogen dissociation pressure at a predetermined temperature is higher than that of the first metal hydride, is placed at a position downstream of the intake air from the mounting position. The first and second heat exchangers above! The hydrogen in the communication passages is installed to enable heat exchange with the supercharging air flowing in the intake passages, and the hydrogen in the communication passages is connected to each communication passage connecting the first heat exchanger and the second heat exchanger located in the separate intake passages. control valves for controlling the movement of the first
The first heat exchanger in the intake passage and the second heat exchanger in the second intake passage form the first cooling system, and the first heat exchanger in the second intake passage and the second heat exchanger in the first intake passage form the first cooling system. Each of the heat exchangers constitutes a second cooling system, and the intake air is cooled in two stages in the first cooling system and the second cooling system, and in each cooling system, one heat exchange is performed. While the supercharged air is being cooled in the heat exchanger, the metal hydride is regenerated in the other heat exchanger, so that the supercharged air can be continuously and It is characterized in that it can be cooled to a temperature lower than the outside air temperature if necessary.

(Example) Embodiments of the present invention will be described below based on the drawings.

Figure 1 shows a characteristic diagram when metal hydrides with different characteristics are used, and Figure 2 shows a principle diagram of an intake air cooling device using metal hydrides. The principle of an embodiment of the present invention will be explained.

Metal hydrides have the characteristic of generating heat when absorbing hydrogen and absorbing heat when releasing hydrogen, and the endothermic and exothermic reactions of metal hydrides are reversible.

In addition, the hydrogen M, depressurization, and dissociation temperature of metal hydrides are unique to each metal hydride. For example, LσN15 (lanthanum-nickel alloy, hereinafter referred to as the first metal hydrogen ) is the temperature shown in Figure 1 -
It has characteristics as shown by a straight line in the hydrogen dissociation pressure diagram,
On the other hand, TiFe (titanium-iron alloy, hereinafter referred to as first metal hydride) has characteristics as shown by straight line B in the figure. That is, between the first metal hydride and the second metal hydride, the first metal hydride has a lower hydrogen dissociation pressure at a predetermined temperature than the first metal hydride.

Therefore, as shown in FIG. 2(a), the first metal hydride S3
A first metal hydride S/ containing a metal hydride S/ is connected to a second container 2 containing a tetrahydride S in a second metal via a communication pipe 5S, and on the side of the first metal hydride 53 in the first container Sl. Conditions are such that the release of hydrogen gas and the storage of hydrogen gas on the second metal hydride Yuhiro side in the second container 5.2 are performed continuously (the first metal hydride 53 side is heated to a high temperature (temperature = When the first metal hydride 53 is heated with the fluid X of the high-temperature fluid (heat absorption amount 201), in other words, while cooling the high temperature fluid X (temperature after cooling = T
1) Hydrogen gas is released, and the other-power first metal hydride S≠ absorbs and stores the hydrogen gas, generates heat, and radiates the heat to the cooler Y (amount of heat radiation: 22 Q). During this time, the inside of the first container 5.2 has a temperature t1 and a pressure p1, and the inside of the second container 5.2 has a temperature t and a pressure p, (p, < p,).

Note that these temperatures 1. ．． 1 u, pressure pl, p yu are not fixed values, but the amount of heat absorbed from high temperature fluid X QO refrigerant Y
It fluctuates according to changes in the heat radiation ff1Q, . Also,
This endothermic and exothermic reaction ends (saturation) when hydrogen gas release on the first metal hydride j3 side or hydrogen gas storage on the first metal hydride 5 side stops. The endothermic and exothermic reactions shown in FIG. 2(a) are indicated by arrow C in the temperature-hydrogen decomposition pressure diagram of FIG.

Next, to explain the case of regenerating the metal hydride 53 after the endothermic reaction (release of hydrogen gas) as described above with reference to FIG. To do this, it is sufficient to cause a reaction opposite to the reaction shown in FIG. 2 C-a). That is, this time, the second container 5.2 is the !
Release of hydrogen gas on the metal hydrogenation tm311 side, first container S
Conditions such that hydrogen gas is continuously stored on the first metal hydride 53 side in the first metal hydride 5
Cool the 3rd side with air or other cold tofu Y' (temperature = t≦))
By setting
' While absorbing heat (endothermic ffi = Q',) b, in other words, while cooling the high temperature fluid X' (temperature after cooling = T,'
) Release the hydrogen gas and convert the other first water flexure into 9433
The shadow water moth (absorbs (regenerates) gas, remains silent, and radiates its heat to the cold 1s:Y' (heat radiation amount 2Q;).During this time, the first
The temperature inside the container Sl is t), the pressure pl', and the second volume μ↑
)evening,! Inside, the temperature is ㎢, and the pressure is p,' (p, ′< possible). The endothermic and exothermic reactions shown in FIG.

In addition, upper M-[! In reaction systems, high-temperature fluids (
X or x') is cooled using a metal hydride (33 or 5I1.
), the temperature (T) of the high-temperature fluid (X or X') after cooling.

or Tl') is cold (1 ('i or Y'), t, 4 H
n, (1, and iJt,;).If necessary, the temperature of the hot fluid (X or
T or T1') can also be lower than the chilled tofu temperature (1, or T1').

Furthermore, in the cooling system shown in FIG. 2, the cooling action on the first metal hydride 53 side and the cooling action on the second metal hydride 5 side cannot be performed continuously. When trying to obtain a cooling effect on high-temperature fluids x and x', two or more sets of reaction systems as shown in Fig. 2 are installed, and while cooling is being performed, the other reaction system is regenerated by flea-crashing. It is better to let it work.

The intake air cooling device for a supercharged engine of the present invention focuses on the endothermic and exothermic reactions of metal hydrides as described above, and utilizes the endothermic phenomenon when the metal hydride releases hydrogen to cool the supercharged air. That's what I'm trying to do.

FIG. 3 shows a system diagram of an intake air cooling device for a supercharged engine according to an embodiment of the present invention. In the figure, the symbol / is an engine, and the engine / includes an intake passage 3 and an exhaust passage. A turbocharger 2 is connected via t.

The intake passage 3 is bifurcated into two passages, a first intake passage 3A and a second intake passage 3B, in the middle, and a first switching valve B is provided at the branch point on the intake upstream side, and a first switching valve B is provided at the branch point on the intake downstream side. A second switching valve 2B is attached to each branch point. The first and second intake passages 3A and 3B are the first and second switching valves B.

By opening and closing 2 and 3 in the same manner, it is possible to selectively communicate with the engine/and the turbo supercharger. These first and second intake passages 3A.

An intake air cooling bag ff15 according to an embodiment of the present invention is installed in 3B.

In this example, a lanthanum-nickel alloy is used as the first metal hydride of two types of metal hydrides that undergo endothermic and exothermic reactions, and a titanium-iron alloy is used as the second metal hydride.

The intake air cooling device S has a first metal hydride (//
Seven first heat exchangers (9A, 9B) each containing heat exchangers (A, //B) are installed at the intake upstream positions of the first intake passage 3A and the second intake passage 3B, and A second metal hydride (/,
2A.

12B> are installed, respectively, and the first heat exchanger qA on the first intake passage 3A side and the second heat exchanger 10B on the second intake passage 3B side are installed. and the first heat exchanger 9B on the second intake passage 3B side and the second heat exchanger IOA on the first intake passage 3A side via the second communication passage /3B. They are connected to each other. These first and second communication paths /3A, /
3B is the first metal water purple of the first heat exchanger qA, 9B/
/AN//B and second heat exchanger IOA, second of 10H
It is for transferring hydrogen in the same way as the metal water purple compound /2A and /2B, and the first and second communication passages /3A
, /3B, the first . The first control valve 15A and the second control valve control the flow of hydrogen flowing through the second communication passages /3A and /3B.
A control valve 73B is attached to each. These two first heat exchangers 9 A + qB and two second heat exchangers I
Of OA and IOB, the first heat exchanger A on the first intake passage 3A side and the first heat exchanger 10B on the second intake passage 3B side connect the seventh cooling system 7A, and the second cooling system 7A on the second intake passage 3B side. A second cooling system 7B is constructed with the first heat exchanger qB and the second heat exchanger 10A on the side of the first intake passage 3A (Figure 1/-).

In addition, the first heat exchanger 9A l qB and the second heat exchanger 101x 108 of each cooling system receive air from a cooling fan (not shown) (a conventional engine fan may be used) or when the car is running. The first heat exchanger 98 on the first intake passage 3A side, the second heat exchanger IOA, and the second intake passage 3B can be cooled by cooling air W such as running wind.
The first heat exchanger 9B and the second heat exchanger 10R on the side are alternately and selectively cooled. In this embodiment, each heat exchanger 9A, 9B, IOA, 10B is connected to cooling air W.
When cooling by the first, first metal hydride //A
N//B, /, 2h, /, 2n respectively about po'
It is designed to obtain a wind fif that maintains the temperature at c.

In the cooling system of this embodiment, the supercharging pressure P of the turbocharger is 0.7 atm, and the supercharging air flow rate Q is N117 m.
i n (2000cc c diesel engine 300
0 rpm), cooling air volume V = 2 (:lN7/win
(Outside air temperature 20°C). In addition, the amount of metal hydride is changed to 9 for each of the first metal water hydride (LΦN1.) of the first heat exchanger 9Δ+9n, and 9 for each of the second heat exchanger IOA.
, 10H second gold horse hydride (TiFe) to 7 and 9 each
and set them respectively to ν.

Next, the operation of this cooling device 5 will be explained using FIG. 1 and FIG. 3 together.

First, number! A case will be described in which the intake passage 3B is closed and high-temperature (approx. Supercharged air S with high temperature intake air of about 1tto℃
First, in the first heat exchanger qA of the first cooling system 7A, the water is cooled to about f3° C. by exchanging heat with the first metal water condensate //A in the first heat exchanger 9A. That is, the first heat exchanger qA
The first metal hydride//A is heated to approximately KO°C by the supercharging temperature as shown in FIG. the second of
Metal hydride/2B is cooled by cooling air Wl for about t
io"c. Therefore, a pressure gradient of ΔP) is generated between the first metal hydride //A and the second metal hydride 72B, and the first metal hydride //A side Hydrogen moves from the second metal hydride/2B side via the seventh communication W!5/3Δ, and in the first heat exchanger qA, the first metal hydride//A absorbs heat (hydrogen gas is released). ) action cools the supercharged air S from about /llO'C to about f 5 °C, and in the first heat exchanger 108, the heat generated by hydrogen absorption is released to the cooling air W. That is, this first In the cooling system 7A, the supercharged air S is cooled (-cooling) in the first heat exchanger 9A located on the first intake passage 3A side, while the second heat exchanger / □H
In this process, the second metal water droplet/2B is regenerated (that is, hydrogen is absorbed) using supercharged air heat.

The supercharged air S that has been primarily cooled to about g5''C in the first cooling system 7A is further cooled secondarily in the second heat exchanger IOA of the second cooling system 7B. That is, the second cooling system 7B
The second metal water purple compound in the second heat exchanger IOA/2A is the second willow valve/! ; Opening ri absorbs heat (releases hydrogen gas)
A reaction occurs, and the temperature drops to about 20"C. Due to this endothermic reaction, the supercharged air S after primary cooling is transferred to this first heat exchanger I.
While passing through the OA, it is cooled from about 30°C to about 30°C (secondary cooling).

On the other hand, the temperature of the first metal hydride //B in the first heat exchanger 9B (located on the second intake passage 3B side) of the second cooling system 7B is maintained at approximately p o 'c by the cooling air W. . Therefore, the second metal hydride /, 2A of the first heat exchanger IOA located on the first intake passage 3A side and the first metal hydride /B of the first heat exchanger q11 located on the second intake passage 3B side. 1st in between
As shown in the figure, a pressure gradient of Δ is generated, and the second metal hydrogen is
Qj2 Hydrogen is transferred from the A side to the first metal water purpide //B side, and in the first heat exchanger B, the first metal water purpide //B
regeneration (hydrogen gas storage). In this case, the reaction heat generated in the first heat exchanger 9B is released to the cooling air W. That is, in the first cooling system 7B, the second heat exchanger/(7A performs secondary cooling of the supercharged air S, while the first
The first metal hydrogenation #j//B is regenerated (hydrogen gas storage) in the heat exchanger qB.

In this way, the supercharged air S from the turbocharger R,2 is cooled in two stages in the first intake passage 3A, from a high temperature of about /I-0°C to an fI temperature of about 30'C. Therefore, the filling efficiency of intake air in the engine is improved by -m, and the output characteristics of the engine are improved.

Note that, according to the conventionally used air-cooled intake air cooling device, the limit is that the supercharged air S of about /+0'C can be cooled to about 70''C.

Due to the progress of the above-mentioned endothermic and exothermic reactions, the first cooling system 7A
When the cooling capacity of the heat exchanger A and the cold MJ capacity of the second heat exchanger/θA of the second cooling system 7B decrease, the first
, change the flow path of the supercharged air S from the first intake passage 3A side to the second intake passage 3B side by switching the second switching valves O and 2 O,
The supercharged air is cooled by the first heat exchanger qB of the second cooling system 7B and the first heat exchanger qB of the second cooling system 7B.
This is done in the second heat exchanger 10B of the cooling system 7A. That is, at the time when the intake passage is switched from the first intake passage 3A side to the second intake passage 3B side, the first gold horse hydride//A of the first heat exchanger A of the first cooling system 7A is approximately rO6C. The second metal hydride/2B in the second heat exchanger IOH is at about IIO°C, and the first metal hydride//B in the first heat exchanger qB in the first cooling system 7A is at about 11.0°C. O″C, second heat exchanger lOA
The N2 metal water purification #ff12A is maintained at a temperature of approximately 20°C.

When the flow path of the supercharged air S is switched in this state, first, in the second cooling system 7B, the first metal hydride//B of the first heat exchanger B is heated to about 110°C by the heat of the supercharged air. The temperature of the first metal hydride IN//B reaches about 50°C, and the hydrogen discharge pressure of the first metal hydride IN//B reaches the second temperature of the second heat exchanger IOA. Metal water cloak #/
,? From the point when the hydrogen discharge pressure of A becomes higher and a pressure is generated between the two, hydrogen begins to be transferred from the seventh gold ash hydride//B side to the second metal hydride/2A side, and the supercharging gas The cooling action of S begins. The pressure between the seventh metal hydride//B and the second metal hydride/, 2A is the pressure between the 1S and 2A.
Temperature increase of gold melon hydride //B, /, 2A (in addition, the second
Kinma hydride/2A gradually increases in temperature as it absorbs hydrogen gas), and eventually the seventh
When the pressure reaches a point indicated by arrow 8IC in the figure, primary cooling (primary cooling) of the supercharging air S is performed at the station where the pressure is indicated. At this time, the second heat exchanger IO of the second cooling system 7B
The second gold horse water purple compound/2A of A is regenerated by the hydrogen gas storage reaction at this time.

On the other hand, in the first cooling system 7A, the seventh gold trihydride//A of the first heat exchanger qA is cooled by the cooling mW and its temperature decreases to about 7I1. ℃ and the second metal hydride @ 72 B side to the first metal hydride / / From the time when the pressure is generated from the A side, the second gold water purplish # / 2 From the B side to the first metal E5 water purple // Water purple transfer to the A side is started (at this point, the first control valve /jA is opened), supercharge air cooling is started in the first heat exchanger 10R, and supercharge air cooling is started in the first heat exchanger 9A.
The regenerating action of the first kinatsumizupurikado//A is started at each step. The pressure between the two gradually increases due to the cooling of the first heat exchanger A by the cooling MW and the heating of the second heat exchanger IOB by the supercharging air S, and eventually
In the figure, the pressure decreases as shown by the arrow, and the cooling effect of the supercharged air S (secondary cooling) and the heat exchanger W
The regeneration action of the first metal hydride//A is carried out dynamically.

Thereafter, the supercharged air S is continuously cooled by appropriately switching and controlling the seventh and second switching valves O and 2 as described above.

As mentioned above, the first and second switching valves B and 2 B of the intake passage 3 are switched by the respective heat exchangers (A, IOA).

(This is done when the cooling capacity of ヲBl/(7B) has decreased, but a method for detecting this cooling capacity is, for example, by detecting the pressure inside each heat exchanger with a pressure sensor, and detecting the pressure on the heat absorption side ( There is a method to determine that when the water sound pressure in the heat exchanger (on the hydrogen gas side) falls below a predetermined pressure, it is assumed that the cooling capacity has decreased. It is also possible to adopt a method such as switching the intake passage.

Next, to explain concrete structural examples (two examples) of the intake air cooling device S, first, FIG. 4 shows an intake air cooling device 5 according to a first structural example. This intake air cooling device 5 has supercharging air S
This is a parallel flow type in which the direction of flow of the cooling air W from the engine cooling fan is parallel to the direction of flow of the cooling air W blown from the engine cooling fan.
The first heat exchanger 9A of the first cooling system 7A and the second
The second heat exchanger 10A of the cooling system 7B is also
The first heat exchanger qB of the second cooling system 7B and the first cooling system 7 are connected to B.
While installing the second heat exchanger 10B of A,
The first heat exchanger 9A and the second heat exchanger 1 of the first cooling system 7A
0B in the first communication path/3A, and the first in the second cooling system 7B.
Heat exchanger 9B and first heat exchanger IOA are connected to second communication path/3B
are connected to each other. This first and second communication path/3A
, /3T3 have the first and third hydrogen flow control valves, respectively.
No.! Control valve/! ;A, /3B are installed. or,
In the first chamber/Δ of this casing, there are a first intake passage 3A branched from the intake passage 3 and a first cooling air passage 211A branched from the cooling air passage 2μ, and a second chamber/g8
The second intake passage 3B and the second cooling air passage,! lll1 are connected to each other. At the branching point of the intake passage 3, there are first and second switching valves O and 2 O for switching the intake passage, and at the branching point of the cooling air passage 2'l, there are first and second switching valves B and 2 O for switching the cooling air passage.
Second cooling air switching valve.

2K are installed respectively. In the intake air cooling device S purchased in this way, the first and second switching valves O, 2 O and the first and second cooling air switching valves 1, 2, 1, 2, and 3 are used for switching supercharging air.
The cooling of the supercharged air S as described above is achieved by selectively flowing the supercharging air S and the cooling air W into the first chamber/A and the second chamber/B by appropriately switching and controlling f. action is taken.

5 and 4 show an intake air cooling system H according to the second structural example.
5 is shown. This intake air cooling device 5 is of a so-called cross-flow type that uses the running wind of a car as the cooling air W and allows the supercharging air S and the cooling air W to flow in a crosswise manner. is the first room/
g A first metal hydride (//A, //A ・ ・) is contained in the first chamber /KA and second chamber /B of the casing / which is divided into eight and second chambers and 7B. , (//n, //n
・・) and a cooling air passage with cooling fins 2S, 2. l
l-92Il... and intake passage 20. ．． The first heat exchanger (qA, qB
> and second metal hydride (/,, 3A, /jA...),
(/, :IB.

/2B...) and cooling fins, 23 (=J's cooling air passage 2I/-, 211... and suction/discharge branch passage, 20', 20...
The second heat exchanger (/QA.

10B) are arranged in series, and the first
sparrow/,! The first heat exchanger 98 on the i'A side and the second heat exchanger 10B on the second chamber/za B side are connected to the first The second heat exchanger IOA of /gA and the first heat exchanger qB of 25≦/gB are 8
They are communicated with each other by a second communication passage/3B equipped with two control valves 15Il. In addition, each heat exchanger (9A, qL
l), (10Δ+ioB> cooling air passage 2≠ and cooling fins 25 are formed in mutually orthogonal directions.
The chamber/gA and the second chamber/gD are connected to the intake passage 3 by u2
r? The first and second switching valves 6 and 2 are connected to the intake passage 3 side by the 11th and 2nd switching valves 6 and 2 provided at 9. Cooling air (driving wind ) W is selectively introduced into it.

The intake air cooling device S of this second structural example is constructed as described above by appropriately opening and closing the first and second switching valves O, 2 O, and the 1.82nd gate, 2/Δ, and 2/B. Performs a cooling effect on the supercharged air S.

(Effects of the Invention) The intake air cooling device for a supercharged engine of the present invention cools supercharged air by utilizing the endothermic action of metal hydrides, which generate heat when storing hydrogen and absorb heat when releasing hydrogen. Since the regeneration of the gold wind hydride (hydrogen gas storage/heat release reaction) is performed without using special power, the conventional method used to cool the supercharged air using the refrigerant in the cooler inside the car. intake air cooling device (Jitsukaisho!; Publication No. 7-117723)
This method has the advantage that the supercharged air can be cooled more dynamically without causing problems such as a decrease in engine output during cooling of the supercharged air as in the case of the above.

In addition, since the supercharged air is cooled by utilizing the endothermic reaction of metal hydrides, the supercharged silver can be cooled down to below the outside air temperature if necessary, which is a real breakthrough! ;7-/31
Air cooling type suction cooling shown in Publication No. 132/
JA buy or Jitsukai Showa 57-/3773! There is also the effect that the cooling limit of supercharged air can be further lowered (improvement of intake air filling efficiency in winter) compared to the water-cooled type intake air cooling device shown in the publication.

1. Figure 7 of the drawing is a characteristic diagram of metal hydrides, nails! The figure is a principle diagram of an intake air cooling device using metal hydride, FIG. FIG. 3 is an exploded view of a specific example of the construction of the intake air cooling device shown in FIG.

/... Engine λ... Supercharger 3... Intake passage 3A... First intake passage 3B... Second intake passage group... Exhaust passage DeA, 7B...first heat exchanger 10Δ, 10D...second heat exchanger//AI//B...first metal hydride/, 2A,/,
2B...-th metal hydride 73A, /3B...
Communication path 15AI/3T3...Control valve Applicant: Toyo Kogyo Co., Ltd. Agent Patent attorney Hiroshi Taihama,'Yu,',?・)2J'-+
, , , -□ +1'1.1 degrees (C) , 2.0 . 2 Shio 30 3S Ge0 +i,, 1, degree of reversal 1000/T (//10 6th river procedural amendment (voluntary) (q゛1° Chief Examiner of the Patent Office) (Mr. Patent Office Examiner) 1. Indication of the case Showa J to 2003 Special Request for Correction No. 7602 No. 2, Title of Invention Intake Air Cooling Device for Supercharged Engine 3, Amended Person 1f ('l and 1y, 1 Patent Applicant 11 Places) wide,
17, □ 6-1 Shinchi, Fuchu-cho, Aki-gun, 1-"2'1 (Ro:
(313) Toyo Kogyo Co., Ltd. I5, '< and Mt.
Waki Saki 4, Agent 5, Amendment Order 1'i) Spontaneous 7 Contents of the Amendment 'i) The last line of page 7 of the specification says ``Condition No. 1 Metal'':
“Conditions (M/Gold metal and correct.

(2) Correct the phrase ``Heat exchanger A'' in the first line of page 1 of Akinorihara to ``Heat exchanger 7Δ''.

(3) Page 17 of the specification, line 1≠, line 1, line 1, g
In the 12th line of the page and the 1st line of the same page, the words ``1-single note'' are corrected to ``1 slope, respectively''.

(4) Ming? Iui, page 1f, line 3 [Pressure single entry...single entry state] is corrected to "pressure gradient increases and falls, and this pressure gradient state".

(6) On the first page of the specification, the line ≠ "Reproduction of monster //A" is corrected to "Reproduction of monster //A."

Clear f4II blind 1st page No. J Koma-cho ``1st switch valve'' is corrected as [No./, 2nd switch valve 4.

Claims (1)

[Claims] / In an engine equipped with a supercharger, the intake passage downstream of the supercharger is defined as a first intake passage and a second intake passage, and supercharged air is alternately introduced into the sub-intake passage. A first heat exchanger provided with a valve and containing a seventh metal hydride that generates heat when storing hydrogen and absorbs heat when releasing water in bulk is connected to the sub-intake passage so as to be able to exchange heat with the supercharging air flowing in both of the intake passages. They are installed respectively, generate heat when absorbing hydrogen, absorb heat when releasing bulk water,
Moreover, the second heat exchanger containing a second metal hydride having a water bulk dissociation pressure higher than that of the first metal hydride at a predetermined temperature is capable of exchanging heat with the supercharging air flowing in both the intake passages. Movement of water volume in each communication passage provided in each of the sub-intake passages downstream of the heat exchanger and connecting the first heat exchanger and the second heat exchanger located in the mutually separate intake passages. An intake air cooling device for an engine with a supercharger, characterized in that each control valve is provided to control the following.