JP6003243B2 - Reserve tank - Google Patents

Reserve tank Download PDF

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JP6003243B2
JP6003243B2 JP2012126005A JP2012126005A JP6003243B2 JP 6003243 B2 JP6003243 B2 JP 6003243B2 JP 2012126005 A JP2012126005 A JP 2012126005A JP 2012126005 A JP2012126005 A JP 2012126005A JP 6003243 B2 JP6003243 B2 JP 6003243B2
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air chamber
cooling water
air
chamber
tank body
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JP2013249791A (en
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奥村　弘幸
弘幸 奥村
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Denso Corp
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Denso Corp
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Description

本発明は、冷却水回路内の冷却水量の変化を吸収するリザーブタンクに関するものである。   The present invention relates to a reserve tank that absorbs changes in the amount of cooling water in a cooling water circuit.

従来のリザーブタンクとして、冷却水が流通する冷却水室と空気が貯留された空気室とを形成し、この空気室を、冷却水の温度変化に伴う冷却水の体積変化、特に膨脹変化を吸収する緩衝器（空気バネ）として機能させるものが知られている（例えば、特許文献１参照）。   As a conventional reserve tank, a cooling water chamber through which cooling water flows and an air chamber in which air is stored are formed, and this air chamber absorbs changes in the volume of cooling water, particularly expansion changes associated with changes in cooling water temperature. A device that functions as a shock absorber (air spring) is known (see, for example, Patent Document 1).

より詳細には、冷却水室と空気室は、分離壁にて分離され、この分離壁におけるタンク本体の底部壁面近傍に形成された連通穴にて連通されている。そして、冷却水室においては、連通穴よりも上方まで冷却水が貯留され、冷却水液面の上方に空気が溜まっている。また、空気室は１つ形成され、冷却水が膨脹していない場合、その空気室においては、連通穴の上端位置まで冷却水が貯留され、冷却水液面の上方に空気が溜まっている。   More specifically, the cooling water chamber and the air chamber are separated by a separation wall, and are communicated by a communication hole formed near the bottom wall surface of the tank body in the separation wall. In the cooling water chamber, the cooling water is stored up to the upper side of the communication hole, and the air is stored above the liquid level of the cooling water. In addition, when one air chamber is formed and the cooling water is not expanded, in the air chamber, the cooling water is stored up to the upper end position of the communication hole, and the air is stored above the liquid level of the cooling water.

特開２００３−２８６８４７号公報JP 2003-286847 A

しかしながら、空気室の空気の量が不足し、空気室の空気だけで冷却水の膨脹変化を吸収仕切れない場合は、冷却水室の空気量を増加させることになる。そして、冷却水室の空気量を増加させると冷却水室の冷却水液面が低下するため、冷却水室を流通する冷却水に冷却水室の空気が巻き込まれ易くなるという問題が発生する。   However, when the amount of air in the air chamber is insufficient and the expansion change of the cooling water cannot be absorbed and divided only by the air in the air chamber, the amount of air in the cooling water chamber is increased. When the amount of air in the cooling water chamber is increased, the liquid level of the cooling water chamber is lowered, which causes a problem that the air in the cooling water chamber is easily caught in the cooling water flowing through the cooling water chamber.

本発明は上記点に鑑みて、冷却水室を流通する冷却水に冷却水室の空気が巻き込まれることを抑制することを目的とする。   An object of this invention is to suppress that the air of a cooling water chamber is caught in the cooling water which distribute | circulates a cooling water chamber in view of the said point.

上記目的を達成するため、請求項１に記載の発明では、内部に空間を有するタンク本体（１）と、タンク本体内に形成され、冷却水が貯留されるとともに冷却水が流通する冷却水室（３）と、タンク本体内に形成され、空気が貯留された空気室（４）と、上下方向に延びるようにしてタンク本体内に設けられ、冷却水室と空気室とを分離する分離壁（２）と、上下方向に延びるようにしてタンク本体内に設けられ、空気室を複数に区画する空気室壁（６）と、分離壁におけるタンク本体の底部壁面近傍に形成され、複数の空気室（４０、４１）のうち冷却水室に隣接する空気室（４０）と冷却水室とを連通させる分離壁連通穴（２０）と、空気室壁におけるタンク本体の上部壁面近傍に形成され、複数の空気室間を連通させる空気室壁連通穴（６０）とを備え、複数の空気室が車両前後方向に並ぶようにして車両に搭載されるリザーブタンクであって、分離壁連通穴と空気室壁連通穴は、車両左右方向にずらして配置されていることを特徴とする。
また、上記目的を達成するため、請求項２に記載の発明では、内部に空間を有するタンク本体（１）と、タンク本体内に形成され、冷却水が貯留されるとともに冷却水が流通する冷却水室（３）と、タンク本体内に形成され、空気が貯留された空気室（４）と、上下方向に延びるようにしてタンク本体内に設けられ、冷却水室と空気室とを分離する分離壁（２）と、上下方向に延びるようにしてタンク本体内に設けられ、空気室を複数に区画する空気室壁（６）と、分離壁におけるタンク本体の底部壁面近傍に形成され、複数の空気室（４０、４１）のうち冷却水室に隣接する空気室（４０）と冷却水室とを連通させる分離壁連通穴（２０）と、空気室壁におけるタンク本体の上部壁面近傍に形成され、複数の空気室間を連通させる空気室壁連通穴（６０）とを備え、複数の空気室が車両前後方向に並ぶようにして車両に搭載されるリザーブタンクであって、分離壁連通穴と空気室壁連通穴は、車両左右方向にずらして配置されていることを特徴とする。
さらに、上記目的を達成するため、請求項３に記載の発明では、内部に空間を有するタンク本体（１）と、タンク本体内に形成され、冷却水が貯留されるとともに冷却水が流通する冷却水室（３）と、タンク本体内に形成され、空気が貯留された空気室（４）と、上下方向に延びるようにしてタンク本体内に設けられ、冷却水室と空気室とを分離する分離壁（２）と、上下方向に延びるようにしてタンク本体内に設けられ、空気室を複数に区画する空気室壁（６）と、分離壁におけるタンク本体の底部壁面近傍に形成され、複数の空気室（４０、４１）のうち冷却水室に隣接する空気室（４０）と冷却水室とを連通させる分離壁連通穴（２０）と、空気室壁におけるタンク本体の上部壁面近傍に形成され、複数の空気室間を連通させる空気室壁連通穴（６０）とを備え、複数の空気室の並び方向を空気室並び方向とし、空気室並び方向に対して直交する水平な方向を空気室直交方向としたとき、分離壁連通穴と空気室壁連通穴は、空気室直交方向にずらして配置され、複数の空気室のうち冷却水室に隣接する空気室は、空気室直交方向に沿って分離壁連通穴側から空気室壁連通穴側に向かって拡がっていることを特徴とする。 In order to achieve the above object, according to the first aspect of the present invention, there is provided a tank body (1) having a space therein, a cooling water chamber formed in the tank body, in which cooling water is stored and cooling water flows. (3), an air chamber (4) formed in the tank body, in which air is stored, and a separation wall provided in the tank body so as to extend in the vertical direction and separating the cooling water chamber and the air chamber (2), an air chamber wall (6) provided in the tank main body so as to extend in the vertical direction and dividing the air chamber into a plurality, and a plurality of air formed in the vicinity of the bottom wall surface of the tank main body in the separation wall A separation wall communication hole (20) for communicating between the cooling chamber and the air chamber (40) adjacent to the cooling water chamber among the chambers (40, 41), and an upper wall surface of the tank body in the air chamber wall; Air chamber wall communication hole for communicating between multiple air chambers 60) and provided with, a reserve tank that is mounted on a vehicle plurality of air chambers so as to align in the longitudinal direction of the vehicle, the separation wall communicating hole and the air chamber Kaberen throughbore is arranged offset in the vehicle right-left direction It is characterized by.
In order to achieve the above object, according to the invention described in claim 2, the tank main body (1) having a space therein and the cooling formed in the tank main body for storing the cooling water and circulating the cooling water. A water chamber (3), an air chamber (4) formed in the tank body and storing air, and provided in the tank body so as to extend in the vertical direction, separate the cooling water chamber and the air chamber. A separation wall (2), an air chamber wall (6) provided in the tank main body so as to extend in the vertical direction and partitioning the air chamber into a plurality, and formed in the vicinity of the bottom wall surface of the tank main body in the separation wall, A separation wall communication hole (20) for communicating the air chamber (40) adjacent to the cooling water chamber and the cooling water chamber among the air chambers (40, 41) and an upper wall surface of the tank body in the air chamber wall. Air chamber wall that communicates between multiple air chambers A reserve tank provided with a through hole (60) and mounted in a vehicle such that a plurality of air chambers are arranged in the vehicle front-rear direction, wherein the separation wall communication hole and the air chamber wall communication hole are shifted in the vehicle left-right direction. It is characterized by being arranged.
Furthermore, in order to achieve the above object, according to the invention described in claim 3, the tank body (1) having a space therein and the cooling formed in the tank body, in which the cooling water is stored and the cooling water flows. A water chamber (3), an air chamber (4) formed in the tank body and storing air, and provided in the tank body so as to extend in the vertical direction, separate the cooling water chamber and the air chamber. A separation wall (2), an air chamber wall (6) provided in the tank main body so as to extend in the vertical direction and partitioning the air chamber into a plurality, and formed in the vicinity of the bottom wall surface of the tank main body in the separation wall, A separation wall communication hole (20) for communicating the air chamber (40) adjacent to the cooling water chamber and the cooling water chamber among the air chambers (40, 41) and an upper wall surface of the tank body in the air chamber wall. Air chamber that communicates between multiple air chambers The separation wall communication hole and the air when the arrangement direction of the plurality of air chambers is the air chamber arrangement direction and the horizontal direction orthogonal to the air chamber arrangement direction is the air chamber orthogonal direction. The chamber wall communication holes are arranged so as to be shifted in the air chamber orthogonal direction, and the air chambers adjacent to the cooling water chamber among the plurality of air chambers are arranged along the air chamber orthogonal direction from the separation wall communication hole side to the air chamber wall communication holes. It is characterized by spreading toward the side.

ところで、従来のリザーブタンクは空気室が一つであるため、空気室における底部全域に冷却水が貯留される。   By the way, since the conventional reserve tank has one air chamber, cooling water is stored in the whole bottom part in an air chamber.

これに対し、本発明においては、冷却水室に隣接する空気室にはその底部に冷却水が貯留されるものの、冷却水室に隣接しない空気室には冷却水が貯留されないため、その分だけ空気室の空気量が増加する。   On the other hand, in the present invention, the cooling water is stored at the bottom of the air chamber adjacent to the cooling water chamber, but the cooling water is not stored in the air chamber not adjacent to the cooling water chamber. The air volume in the air chamber increases.

そして、空気室の空気量が増加した分、冷却水室の空気量を減少させることにより、冷却水室の冷却水液面が上昇するため、冷却水室を流通する冷却水に冷却水室の空気が巻き込まれ難くなる。   Then, the amount of air in the cooling chamber is increased by decreasing the amount of air in the cooling chamber, so that the liquid level of the cooling chamber rises. Air becomes difficult to get involved.

なお、この欄および特許請求の範囲で記載した各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。   In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

本発明の第１実施形態に係るリザーブタンクを示す断面図である。It is sectional drawing which shows the reserve tank which concerns on 1st Embodiment of this invention. 本発明の第２実施形態に係るリザーブタンクを示す断面図である。It is sectional drawing which shows the reserve tank which concerns on 2nd Embodiment of this invention. 図２のリザーブタンクのＢ矢視図である。FIG. 3 is a B arrow view of the reserve tank of FIG. 2. 本発明の第３実施形態に係るリザーブタンクを示す斜視図である。It is a perspective view which shows the reserve tank which concerns on 3rd Embodiment of this invention.

以下、本発明の実施形態について図に基づいて説明する。なお、以下の各実施形態相互において、互いに同一もしくは均等である部分には、図中、同一符号を付してある。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

（第１実施形態）
本実施形態に係るリザーブタンクは、車両用水冷式内燃機関における冷却水回路に配置されて、冷却水回路内の冷却水量の変化を吸収する機能を発揮する。なお、冷却水回路には、内燃機関を冷却した冷却水と空気とを熱交換させて冷却水を冷却するラジエータを備えている。 (First embodiment)
The reserve tank according to the present embodiment is disposed in a cooling water circuit in a vehicle water-cooled internal combustion engine, and exhibits a function of absorbing a change in the amount of cooling water in the cooling water circuit. The cooling water circuit includes a radiator that cools the cooling water by exchanging heat between the cooling water that has cooled the internal combustion engine and the air.

図１に示すように、リザーブタンクは、内部に空間を有する略直方体の樹脂製のタンク本体１を備えている。   As shown in FIG. 1, the reserve tank includes a substantially rectangular parallelepiped resin tank body 1 having a space inside.

タンク本体１には、上下方向に延びる分離壁２が形成されており、この分離壁２により、タンク本体１内は冷却水が貯留される冷却水室３と空気が貯留される空気室４とに分離されている。   A separation wall 2 extending in the vertical direction is formed in the tank body 1, and by this separation wall 2, a cooling water chamber 3 in which cooling water is stored and an air chamber 4 in which air is stored are stored in the tank body 1. Have been separated.

タンク本体１には、冷却水室３内に配置されて上下方向に延びる２枚の冷却水室壁５が形成されており、この冷却水室壁５により、冷却水室３は３つの冷却水室３０〜３２に区画されている。なお、３つの冷却水室３０〜３２については、必要に応じて、図中左側から順に、第１冷却水室３０、第２冷却水室３１、第３冷却水室３２という。   The tank body 1 is formed with two cooling water chamber walls 5 disposed in the cooling water chamber 3 and extending in the vertical direction. The cooling water chamber wall 5 causes the cooling water chamber 3 to have three cooling waters. It is divided into chambers 30-32. Note that the three cooling water chambers 30 to 32 are referred to as a first cooling water chamber 30, a second cooling water chamber 31, and a third cooling water chamber 32 in order from the left side in the drawing as necessary.

タンク本体１には、空気室４内に配置されて上下方向に延びる１枚の空気室壁６が形成されており、この空気室壁６により、空気室４は２つの空気室４０、４１に区画されている。なお、２つの空気室４０、４１については、必要に応じて、第３冷却水室３２に隣接する空気室４０を第１空気室４０といい、他の空気室４１を第２空気室４１という。   The tank body 1 is formed with one air chamber wall 6 disposed in the air chamber 4 and extending in the vertical direction. The air chamber wall 6 allows the air chamber 4 to be divided into two air chambers 40 and 41. It is partitioned. In addition, about the two air chambers 40 and 41, the air chamber 40 adjacent to the 3rd cooling water chamber 32 is called the 1st air chamber 40, and the other air chamber 41 is called the 2nd air chamber 41 as needed. .

タンク本体１には、冷却水室３に冷却水を供給するための注水口１０、冷却水回路の配管に接続される流入口１１および流出口１２が形成されている。具体的には、流入口１１は第１冷却水室３０と連通し、流出口１２は第３冷却水室３２と連通している。   The tank body 1 is formed with a water inlet 10 for supplying cooling water to the cooling water chamber 3, and an inlet 11 and an outlet 12 connected to the piping of the cooling water circuit. Specifically, the inflow port 11 communicates with the first cooling water chamber 30 and the outflow port 12 communicates with the third cooling water chamber 32.

分離壁２におけるタンク本体１の底部壁面近傍に、第３冷却水室３２と第１空気室４０とを連通させる分離壁連通穴２０が形成されている。なお、この分離壁連通穴２０は、分離壁２におけるタンク本体１の底部壁面近傍のうち底部壁面に接する位置に、換言すると、分離壁２における最下部位置に、形成してもよい。   A separation wall communication hole 20 for communicating the third cooling water chamber 32 and the first air chamber 40 is formed in the vicinity of the bottom wall surface of the tank body 1 in the separation wall 2. The separation wall communication hole 20 may be formed at a position in contact with the bottom wall surface in the vicinity of the bottom wall surface of the tank body 1 in the separation wall 2, in other words, at a lowermost position on the separation wall 2.

冷却水室壁５におけるタンク本体１の底部壁面近傍に、隣接する冷却水室３間を連通させる冷却水室壁下部連通穴５０が形成され、冷却水室壁５におけるタンク本体１の上部壁面近傍に、隣接する冷却水室３間を連通させる冷却水室壁上部連通穴５１が形成されている。   A cooling water chamber wall lower communication hole 50 for communicating between adjacent cooling water chambers 3 is formed in the cooling water chamber wall 5 in the vicinity of the bottom wall surface of the tank body 1, and in the vicinity of the upper wall surface of the tank body 1 in the cooling water chamber wall 5. In addition, a cooling water chamber wall upper communication hole 51 that allows communication between adjacent cooling water chambers 3 is formed.

空気室壁６におけるタンク本体１の上部壁面近傍に、第１空気室４０と第２空気室４１とを連通させる空気室壁連通穴６０が形成されている。なお、この空気室壁連通穴６０は、空気室壁６におけるタンク本体１の上部壁面近傍のうち上部壁面に接する位置に、換言すると、空気室壁６における最上部位置に、形成してもよい。   An air chamber wall communication hole 60 that allows the first air chamber 40 and the second air chamber 41 to communicate with each other is formed near the upper wall surface of the tank body 1 in the air chamber wall 6. The air chamber wall communication hole 60 may be formed at a position in contact with the upper wall surface in the vicinity of the upper wall surface of the tank body 1 in the air chamber wall 6, in other words, at an uppermost position on the air chamber wall 6. .

本実施形態に係るリザーブタンクは、注水口１０から注水することにより、冷却水室３には、分離壁連通穴２０および冷却水室壁下部連通穴５０よりも上方まで冷却水が貯留されている。なお、冷却水室３の上方部位には、空気が貯留されていてもよいし、貯留されていなくてもよい。   In the reserve tank according to the present embodiment, cooling water is stored in the cooling water chamber 3 up to above the separation wall communication hole 20 and the cooling water chamber wall lower communication hole 50 by pouring water from the water injection port 10. . Note that air may or may not be stored in the upper part of the cooling water chamber 3.

第１空気室４０には、分離壁連通穴２０を介して冷却水が流入し、分離壁連通穴２０の上端位置まで冷却水が貯留されている。この第１空気室４０のうち液面よりも上方部位には空気が貯留されている。   Cooling water flows into the first air chamber 40 through the separation wall communication hole 20, and the cooling water is stored up to the upper end position of the separation wall communication hole 20. Air is stored in a portion of the first air chamber 40 above the liquid level.

空気室壁連通穴６０は分離壁連通穴２０よりも上方に位置するため、第１空気室４０の冷却水が空気室壁連通穴６０を介して第２空気室４１に流入することはない。したがって、第２空気室４１には、その全域に空気が貯留されている。   Since the air chamber wall communication hole 60 is located above the separation wall communication hole 20, the cooling water of the first air chamber 40 does not flow into the second air chamber 41 through the air chamber wall communication hole 60. Therefore, the second air chamber 41 stores air throughout the entire area.

そして、流入口１１から流入した冷却水は、第１冷却水室３０、第２冷却水室３１、さらには第３冷却水室３２を流通して、流出口１２から流出する。   And the cooling water which flowed in from the inflow port 11 distribute | circulates the 1st cooling water chamber 30, the 2nd cooling water chamber 31, and also the 3rd cooling water chamber 32, and flows out from the outflow port 12. FIG.

また、冷却水の温度上昇により冷却水が膨張した際には、空気室４の空気および冷却水室３の空気が圧縮されて冷却水の体積変化が吸収される。   Further, when the cooling water expands due to the temperature rise of the cooling water, the air in the air chamber 4 and the air in the cooling water chamber 3 are compressed and the volume change of the cooling water is absorbed.

ここで、前述した従来のリザーブタンクは空気室が１つであるため、空気室における底部全域に冷却水が貯留される。   Here, since the conventional reserve tank mentioned above has one air chamber, cooling water is stored in the whole bottom part in an air chamber.

これに対し、本実施形態のリザーブタンクにおいては、第３冷却水室３２に隣接する第１空気室４０にはその底部に冷却水が貯留されるものの、第２空気室４１には冷却水が貯留されないため、従来のリザーブタンクと比較して、破線で囲んだ領域Ａの分だけ空気室４の空気量が増加する。   In contrast, in the reserve tank of the present embodiment, the first air chamber 40 adjacent to the third cooling water chamber 32 stores cooling water at the bottom thereof, but the second air chamber 41 has cooling water. Since it is not stored, the amount of air in the air chamber 4 is increased by the area A surrounded by the broken line as compared with the conventional reserve tank.

そして、空気室４の空気量が増加した分、冷却水室３の空気量を減少させることにより、冷却水室３の冷却水液面が上昇するため、冷却水室３を流通する冷却水に冷却水室３の空気が巻き込まれ難くなる。   And since the liquid level of the cooling water chamber 3 rises by decreasing the air quantity of the cooling water chamber 3 by the amount of air in the air chamber 4 increased, the cooling water flowing through the cooling water chamber 3 It becomes difficult for the air in the cooling water chamber 3 to be caught.

（第２実施形態）
本実施形態は、分離壁連通穴２０および空気室壁連通穴６０の位置関係を変更したものであり、その他に関しては第１実施形態と同様であるため、異なる部分についてのみ説明する。 (Second Embodiment)
In this embodiment, the positional relationship between the separation wall communication hole 20 and the air chamber wall communication hole 60 is changed, and the other parts are the same as those in the first embodiment, and therefore only different parts will be described.

図２、図３に示すように、第１空気室４０と第２空気室４１が車両左右方向に並ぶようにして車両に搭載されるリザーブタンクにおいては、分離壁連通穴２０と空気室壁連通穴６０を、車両前後方向にずらして配置している。   As shown in FIGS. 2 and 3, in the reserve tank that is mounted on the vehicle so that the first air chamber 40 and the second air chamber 41 are arranged in the vehicle left-right direction, the separation wall communication hole 20 and the air chamber wall communication are provided. The holes 60 are shifted in the vehicle front-rear direction.

これによると、車両の振動や加減速等により、第３冷却水室３２に隣接する第１空気室４０の冷却水が車両前方側または後方側に偏った場合でも、第１空気室４０から第２空気室４１に冷却水が入りにくい。   According to this, even when the cooling water in the first air chamber 40 adjacent to the third cooling water chamber 32 is biased toward the front side or the rear side of the vehicle due to the vibration or acceleration / deceleration of the vehicle, the first air chamber 40 2 Cooling water is difficult to enter the air chamber 41.

なお、第１空気室４０と第２空気室４１が車両前後方向に並ぶようにして車両に搭載されるリザーブタンクの場合には、分離壁連通穴２０と空気室壁連通穴６０を、車両左右方向にずらして配置することができる。これによると、車両の振動や旋回等により、第１空気室４０の冷却水が車両左側または右側に偏った場合でも、第１空気室４０から第２空気室４１に冷却水が入りにくい。   In the case of a reserve tank that is mounted on a vehicle so that the first air chamber 40 and the second air chamber 41 are aligned in the vehicle front-rear direction, the separation wall communication hole 20 and the air chamber wall communication hole 60 are provided on the left and right sides of the vehicle. It can be shifted in the direction. According to this, even when the cooling water in the first air chamber 40 is biased to the left or right side of the vehicle due to the vibration or turning of the vehicle, it is difficult for the cooling water to enter the second air chamber 41 from the first air chamber 40.

（第３実施形態）
本実施形態は、第１空気室４０の構成を変更したものであり、その他に関しては第１実施形態と同様であるため、異なる部分についてのみ説明する。 (Third embodiment)
In the present embodiment, the configuration of the first air chamber 40 is changed, and the other parts are the same as those in the first embodiment, and therefore only different parts will be described.

図４に示すように、第１空気室４０と第２空気室４１の並び方向を空気室並び方向Ｃとし、空気室並び方向Ｃに対して直交する水平な方向を空気室直交方向Ｄとしたとき、分離壁連通穴２０と空気室壁連通穴６０を、空気室直交方向Ｄにずらして配置している。   As shown in FIG. 4, the arrangement direction of the first air chamber 40 and the second air chamber 41 is the air chamber arrangement direction C, and the horizontal direction orthogonal to the air chamber arrangement direction C is the air chamber orthogonal direction D. At this time, the separation wall communication hole 20 and the air chamber wall communication hole 60 are shifted in the air chamber orthogonal direction D.

また、分離壁２と空気室壁６を空気室直交方向Ｄに対して逆向きに傾斜させて、第１空気室４０における分離壁連通穴２０側の辺を短く、第１空気室４０における空気室壁連通穴６０側の辺を長くしている。これにより、第３冷却水室３２に隣接する第１空気室４０は、空気室直交方向Ｄに沿って分離壁連通穴２０側から空気室壁連通穴６０側に向かって拡がっている。なお、図４では、分離壁２と空気室壁６の構成を明瞭にするために、分離壁２と空気室壁６に便宜的にハッチングを入れている。   In addition, the separation wall 2 and the air chamber wall 6 are inclined in the opposite direction to the air chamber orthogonal direction D, the side on the separation wall communication hole 20 side in the first air chamber 40 is shortened, and the air in the first air chamber 40 The side on the chamber wall communication hole 60 side is lengthened. Thus, the first air chamber 40 adjacent to the third cooling water chamber 32 extends from the separation wall communication hole 20 side toward the air chamber wall communication hole 60 side along the air chamber orthogonal direction D. In FIG. 4, the separation wall 2 and the air chamber wall 6 are hatched for convenience in order to clarify the configuration of the separation wall 2 and the air chamber wall 6.

これによると、車両の振動等により、第１空気室４０の冷却水が空気室壁連通穴６０側に偏った場合でも、空気室壁連通穴６０側の水位が上がりにくいため、第１空気室４０から第２空気室４１に冷却水が入りにくい。   According to this, even if the cooling water in the first air chamber 40 is biased toward the air chamber wall communication hole 60 due to vehicle vibration or the like, the water level on the air chamber wall communication hole 60 side is difficult to rise, so the first air chamber The cooling water hardly enters the second air chamber 41 from 40.

なお、上記各実施形態は、実施可能な範囲で任意に組み合わせが可能である。   In addition, each said embodiment can be arbitrarily combined in the range which can be implemented.

１ タンク本体
２ 分離壁
３ 冷却水室
４ 空気室
６ 空気室壁
２０ 分離壁連通穴
６０ 空気室壁連通穴 1 Tank body 2 Separation wall 3 Cooling water chamber 4 Air chamber 6 Air chamber wall 20 Separation wall communication hole 60 Air chamber wall communication hole

Claims (3)

内部に空間を有するタンク本体（１）と、
前記タンク本体内に形成され、冷却水が貯留されるとともに冷却水が流通する冷却水室（３）と、
前記タンク本体内に形成され、空気が貯留された空気室（４）と、
上下方向に延びるようにして前記タンク本体内に設けられ、前記冷却水室と前記空気室とを分離する分離壁（２）と、
上下方向に延びるようにして前記タンク本体内に設けられ、前記空気室を複数に区画する空気室壁（６）と、
前記分離壁における前記タンク本体の底部壁面近傍に形成され、前記複数の空気室（４０、４１）のうち前記冷却水室に隣接する空気室（４０）と前記冷却水室とを連通させる分離壁連通穴（２０）と、
前記空気室壁における前記タンク本体の上部壁面近傍に形成され、前記複数の空気室間を連通させる空気室壁連通穴（６０）とを備え、
前記複数の空気室が車両左右方向に並ぶようにして車両に搭載されるリザーブタンクであって、
前記分離壁連通穴と前記空気室壁連通穴は、車両前後方向にずらして配置されていることを特徴とするリザーブタンク。 A tank body (1) having a space inside;
A cooling water chamber (3) formed in the tank body, in which the cooling water is stored and the cooling water flows;
An air chamber (4) formed in the tank body and storing air;
A separation wall (2) provided in the tank body so as to extend in the vertical direction and separating the cooling water chamber and the air chamber;
An air chamber wall (6) provided in the tank body so as to extend in the vertical direction, and dividing the air chamber into a plurality of parts;
A separation wall that is formed in the vicinity of the bottom wall surface of the tank body in the separation wall and communicates the cooling water chamber with the air chamber (40) adjacent to the cooling water chamber among the plurality of air chambers (40, 41). A communication hole (20);
An air chamber wall communication hole (60) that is formed near the upper wall surface of the tank body in the air chamber wall and communicates between the plurality of air chambers;
A reserve tank that is mounted on a vehicle such that the plurality of air chambers are arranged in the vehicle left-right direction,
The reserve tank, wherein the separation wall communication hole and the air chamber wall communication hole are arranged to be shifted in the vehicle front-rear direction. 内部に空間を有するタンク本体（１）と、
前記タンク本体内に形成され、冷却水が貯留されるとともに冷却水が流通する冷却水室（３）と、
前記タンク本体内に形成され、空気が貯留された空気室（４）と、
上下方向に延びるようにして前記タンク本体内に設けられ、前記冷却水室と前記空気室とを分離する分離壁（２）と、
上下方向に延びるようにして前記タンク本体内に設けられ、前記空気室を複数に区画する空気室壁（６）と、
前記分離壁における前記タンク本体の底部壁面近傍に形成され、前記複数の空気室（４０、４１）のうち前記冷却水室に隣接する空気室（４０）と前記冷却水室とを連通させる分離壁連通穴（２０）と、
前記空気室壁における前記タンク本体の上部壁面近傍に形成され、前記複数の空気室間を連通させる空気室壁連通穴（６０）とを備え、
前記複数の空気室が車両前後方向に並ぶようにして車両に搭載されるリザーブタンクであって、
前記分離壁連通穴と前記空気室壁連通穴は、車両左右方向にずらして配置されていることを特徴とするリザーブタンク。 A tank body (1) having a space inside;
A cooling water chamber (3) formed in the tank body, in which the cooling water is stored and the cooling water flows;
An air chamber (4) formed in the tank body and storing air;
A separation wall (2) provided in the tank body so as to extend in the vertical direction and separating the cooling water chamber and the air chamber;
An air chamber wall (6) provided in the tank body so as to extend in the vertical direction, and dividing the air chamber into a plurality of parts;
A separation wall that is formed in the vicinity of the bottom wall surface of the tank body in the separation wall and communicates the cooling water chamber with the air chamber (40) adjacent to the cooling water chamber among the plurality of air chambers (40, 41). A communication hole (20);
An air chamber wall communication hole (60) that is formed near the upper wall surface of the tank body in the air chamber wall and communicates between the plurality of air chambers;
A reserve tank mounted on the vehicle such that the plurality of air chambers are arranged in the vehicle longitudinal direction,
The reserve tank, wherein the separation wall communication hole and the air chamber wall communication hole are arranged to be shifted in the vehicle left-right direction. 内部に空間を有するタンク本体（１）と、
前記タンク本体内に形成され、冷却水が貯留されるとともに冷却水が流通する冷却水室（３）と、
前記タンク本体内に形成され、空気が貯留された空気室（４）と、
上下方向に延びるようにして前記タンク本体内に設けられ、前記冷却水室と前記空気室とを分離する分離壁（２）と、
上下方向に延びるようにして前記タンク本体内に設けられ、前記空気室を複数に区画する空気室壁（６）と、
前記分離壁における前記タンク本体の底部壁面近傍に形成され、前記複数の空気室（４０、４１）のうち前記冷却水室に隣接する空気室（４０）と前記冷却水室とを連通させる分離壁連通穴（２０）と、
前記空気室壁における前記タンク本体の上部壁面近傍に形成され、前記複数の空気室間を連通させる空気室壁連通穴（６０）とを備え、
前記複数の空気室の並び方向を空気室並び方向とし、空気室並び方向に対して直交する水平な方向を空気室直交方向としたとき、
前記分離壁連通穴と前記空気室壁連通穴は、空気室直交方向にずらして配置され、
前記複数の空気室のうち前記冷却水室に隣接する空気室は、空気室直交方向に沿って前記分離壁連通穴側から前記空気室壁連通穴側に向かって拡がっていることを特徴とするリザーブタンク。 A tank body (1) having a space inside;
A cooling water chamber (3) formed in the tank body, in which the cooling water is stored and the cooling water flows;
An air chamber (4) formed in the tank body and storing air;
A separation wall (2) provided in the tank body so as to extend in the vertical direction and separating the cooling water chamber and the air chamber;
An air chamber wall (6) provided in the tank body so as to extend in the vertical direction, and dividing the air chamber into a plurality of parts;
A separation wall that is formed in the vicinity of the bottom wall surface of the tank body in the separation wall and communicates the cooling water chamber with the air chamber (40) adjacent to the cooling water chamber among the plurality of air chambers (40, 41). A communication hole (20);
An air chamber wall communication hole (60) that is formed near the upper wall surface of the tank body in the air chamber wall and communicates between the plurality of air chambers;
When the direction in which the plurality of air chambers are aligned is the air chamber alignment direction, and the horizontal direction orthogonal to the air chamber alignment direction is the air chamber orthogonal direction,
The separation wall communication hole and the air chamber wall communication hole are arranged shifted in the air chamber orthogonal direction,
Air chamber adjacent to the cooling water chamber of the plurality of air chambers, characterized in that from the separation wall communicating hole side along the air chamber perpendicular direction has spread toward the air chamber wall communication hole side Reserve tank.
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