JP2002022315A - Four-way selector valve of high efficiency - Google Patents

Four-way selector valve of high efficiency

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Publication number
JP2002022315A
JP2002022315A JP2000206858A JP2000206858A JP2002022315A JP 2002022315 A JP2002022315 A JP 2002022315A JP 2000206858 A JP2000206858 A JP 2000206858A JP 2000206858 A JP2000206858 A JP 2000206858A JP 2002022315 A JP2002022315 A JP 2002022315A
Authority
JP
Japan
Prior art keywords
valve
pressure
valve body
conduit
conduits
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000206858A
Other languages
Japanese (ja)
Inventor
Noriyuki Morita
紀幸 森田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ranco Japan Ltd
Original Assignee
Ranco Japan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ranco Japan Ltd filed Critical Ranco Japan Ltd
Priority to JP2000206858A priority Critical patent/JP2002022315A/en
Publication of JP2002022315A publication Critical patent/JP2002022315A/en
Pending legal-status Critical Current

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  • Valve Housings (AREA)
  • Sliding Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

PROBLEM TO BE SOLVED: To realize a four-way selector valve of high efficiency which enables reduction of a pressure loss and a heat loss on high-pressure and low-pressure sides. SOLUTION: The four-way selector valve has a tubular valve main body 20 closed in the opposite ends, a valve seat 21 provided inside the valve main body 20, two conduits 22 and 24 and one low-pressure conduit 23 provided in a row in the valve seat 21, a valve disk 26 provided slidably on the valve seat 21, and a high-pressure conduit 25 provided in the wall of the valve main body 20 oppositely to the valve seat 21. The high-pressure conduit 25 is formed in a fork, and two high-pressure conduits 25a and 25b being forked are so provided in the valve main body 20 as to be opposed to the two conduits 22 and 24, respectively. The valve disk 26 is provided with a means that always masks either of the two high-pressure conduits 25a and 25b.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は四方切換弁に関す
る。詳しくは、冷暖房装置において、冷房と暖房とを切
り換えるために用いられる四方切換弁であって、熱損失
を少なくした高効率四方切換弁に関する。
The present invention relates to a four-way switching valve. More specifically, the present invention relates to a four-way switching valve used for switching between cooling and heating in a cooling and heating device, and relates to a high-efficiency four-way switching valve with reduced heat loss.

【0002】[0002]

【従来の技術】図6は従来の冷暖房装置を説明するため
の図である。同図において、符号1は冷媒ガスを圧縮す
る圧縮機、2は室内を冷房又は暖房するために冷媒ガス
の循環方向を転換させるための四方切換弁であり、該四
方切換弁には高圧導管3と2個の導管4,6と1個の低
圧導管5と、弁体7とが設けられており、高圧導管3は
圧縮器1の吐出口1aに接続され、導管4は室外熱交換
器8に、導管6は室内熱交換器9にそれぞれ接続され、
低圧導管5は圧縮機1の吸入口1bに接続されている。
また、室内熱交換器と室外熱交換器との間には両熱交換
器の間を流れる冷媒ガスの圧力を調節する膨張弁10が
配設されている。
2. Description of the Related Art FIG. 6 is a view for explaining a conventional air conditioner. In FIG. 1, reference numeral 1 denotes a compressor for compressing a refrigerant gas, and 2 denotes a four-way switching valve for changing the direction of circulation of the refrigerant gas for cooling or heating the room. And two conduits 4, 6 and one low-pressure conduit 5 and a valve body 7, a high-pressure conduit 3 is connected to the discharge port 1a of the compressor 1, and a conduit 4 is connected to the outdoor heat exchanger 8 In the meantime, the conduits 6 are respectively connected to the indoor heat exchangers 9,
The low-pressure conduit 5 is connected to the suction port 1b of the compressor 1.
An expansion valve 10 that regulates the pressure of the refrigerant gas flowing between the indoor heat exchanger and the outdoor heat exchanger is provided.

【0003】そして弁体7が図6(a)の状態にあると
きは、圧縮機1から出力された高温高圧の冷媒ガスは四
方切換弁2から導管6を経て室内熱交換器9に入り、放
熱して室内の空気と熱交換を行い低温となった後、膨張
弁10を通り室外熱交換器8に入る。該室外熱交換器8
に流入した低温の冷媒ガスは外気から吸熱して導管4か
ら低圧導管5を経て圧縮機1に戻り循環する。これによ
り室内は暖房される。
When the valve element 7 is in the state shown in FIG. 6A, the high-temperature and high-pressure refrigerant gas output from the compressor 1 enters the indoor heat exchanger 9 through the four-way switching valve 2 via the conduit 6, and After radiating heat and exchanging heat with the indoor air to lower the temperature, the air enters the outdoor heat exchanger 8 through the expansion valve 10. The outdoor heat exchanger 8
The low-temperature refrigerant gas that has flowed into the compressor absorbs heat from the outside air and returns to the compressor 1 from the conduit 4 via the low-pressure conduit 5 and circulates. This heats the room.

【0004】また、図6(b)の如く、弁体7を右方に
摺動させれば、圧縮機1からの高温高圧の冷媒は四方切
換弁2から導管4を経て室外熱交換器8に入り、放熱し
外気と熱交換した後、膨張弁10を通り室内熱交換器9
で室内空気と熱交換し吸熱した後導管6から低圧導管5
を経て圧縮機1に戻り循環する。これにより室内は冷房
される。
When the valve element 7 is slid rightward as shown in FIG. 6 (b), the high-temperature and high-pressure refrigerant from the compressor 1 flows from the four-way switching valve 2 via the conduit 4 to the outdoor heat exchanger 8 After entering the heat and exchanging heat with the outside air, it passes through the expansion valve 10 and passes through the indoor heat exchanger 9.
After exchanging heat with the indoor air to absorb heat, the conduit 6 to the low-pressure conduit 5
And returns to the compressor 1 for circulation. Thereby, the room is cooled.

【0005】[0005]

【発明が解決しようとする課題】このように四方切換弁
は高圧側と低圧側の流体の流れを切り換えることによっ
て、冷房、暖房を切り換える弁であるが、この高圧側と
低圧側の流れは、弁本体内にある弁体7によって遮断す
る構造となっているため、弁体7は、高圧側の流体と低
圧側の流体に直接さらされることになる。よって弁体7
の材質、形状、厚さ等が四方切換弁の高圧側、低圧側の
流量、熱ロスに大きく影響する。
As described above, the four-way switching valve is a valve that switches between cooling and heating by switching the flow of the fluid on the high pressure side and the low pressure side. The flow on the high pressure side and the flow on the low pressure side are as follows. Since the valve body 7 is configured to be shut off by the valve body 7 in the valve body, the valve body 7 is directly exposed to the high-pressure side fluid and the low-pressure side fluid. Therefore, the valve element 7
The material, shape, thickness, etc. of the four-way switching valve greatly affect the flow rate and heat loss on the high and low pressure sides.

【0006】弁体7の材質は熱伝導率の小さい材料が望
ましいが、一般に弁体用の材料として使用されているの
は、66ナイロン、テフロン(登録商標)等の樹脂及び
セラミックであるが、セラミックと66ナイロン、テフ
ロンの熱伝導率を比較すると、セラミックより66ナイ
ロン、テフロンの方が熱伝導率は小さくなっている。ま
た樹脂材料の中には、ポリスチレンのように66ナイロ
ンやテフロンよりも熱伝導率の小さい材料はあるが、弁
体としての機能を考えた場合、使用できる材料は限ら
れ、この材料の中での熱伝導率は同程度であり、材質に
よる対応は難しいものである。
The material of the valve body 7 is desirably a material having a low thermal conductivity. Generally, resins and ceramics such as 66 nylon and Teflon (registered trademark) are used as the material for the valve body. Comparing the thermal conductivity of ceramic, 66 nylon and Teflon, the thermal conductivity of 66 nylon and Teflon is lower than that of ceramic. Some resin materials, such as polystyrene, have a lower thermal conductivity than 66 nylon or Teflon. However, considering the function as a valve, usable materials are limited. Have similar thermal conductivities, and it is difficult to cope with the material.

【0007】形状、厚さ等については、弁体の厚みを増
し、熱ロスを少なくしようとすると、流量に制約ができ
てしまい、大幅に厚みをますことは出来ない。また流量
に影響が出ないように厚みを増した場合では、熱ロス減
少の効果が得られない。
Regarding the shape, thickness, etc., if the thickness of the valve body is increased and the heat loss is reduced, the flow rate is restricted, and the thickness cannot be greatly increased. If the thickness is increased so as not to affect the flow rate, the effect of reducing heat loss cannot be obtained.

【0008】また、暖房、冷房いずれかの効率のみを重
視し、図7の如く高圧側配管3の位置を変え、高圧側の
流れに(a)図の矢印Aの如き直線的な流れを設け、高
圧側の圧力損失を少なくした弁があるが、この弁は図7
(a)の如き位置においては、高圧側の圧力損失が少な
くなると同時に、高圧側の流体が弁体7に直接(真上に
近い位置から)当たらなくなり、熱ロスも少なくなる。
Further, focusing on only the efficiency of either heating or cooling, the position of the high pressure side pipe 3 is changed as shown in FIG. 7, and a linear flow as shown by an arrow A in FIG. There is a valve in which the pressure loss on the high pressure side is reduced.
In the position as in (a), the pressure loss on the high pressure side is reduced, and at the same time, the fluid on the high pressure side does not directly hit the valve 7 (from a position close to directly above), and the heat loss is also reduced.

【0009】しかし図7(b)の如く弁体7が逆の位置
では、高圧側の流れは矢印Bの如くになり、高圧側の流
量は大きく絞られて、圧力損失が大きくなると同時に、
高圧側の流体が弁体7に直接当たり、熱ロスも大きくな
る。また流体が直接当たる位置では、カバー等を取り付
けて、熱ロスを防いでいるものもあるが、高圧側の流量
を更に絞ることになり、極端なカバーを付けることが出
来なかった。
However, when the valve element 7 is in the reverse position as shown in FIG. 7B, the flow on the high pressure side becomes as shown by the arrow B, the flow rate on the high pressure side is greatly reduced, and the pressure loss increases.
The fluid on the high-pressure side directly hits the valve body 7, and the heat loss also increases. At the position where the fluid directly hits, there is a case in which a cover or the like is attached to prevent heat loss, but the flow rate on the high pressure side is further reduced, and an extreme cover cannot be attached.

【0010】本発明は上記従来の問題点に鑑み、高圧側
と低圧側の圧力損失及び熱ロスの低減を可能とした高効
率の四方切換弁を実現することを目的とする。
The present invention has been made in view of the above-mentioned conventional problems, and has as its object to realize a high-efficiency four-way switching valve capable of reducing pressure loss and heat loss on the high and low pressure sides.

【0011】[0011]

【課題を解決するための手段】本発明の請求項1の高効
率四方切換弁は、両端が閉じた筒状の弁本体20と、該
弁本体20の内部に設けられた弁座21と、該弁座21
に1列に設けられた2個の導管22,24及び1個の低
圧導管23と、該弁座21の上を摺動可能に設けられた
弁体26と、前記弁座21に対向して弁本体20の壁に
設けられた高圧導管25と、を具備してなる四方切換弁
において、前記高圧導管25を二股に形成し、該二股に
した2本の高圧導管25a,25bを前記2個の導管2
2,24にそれぞれ対向するように弁本体20に配設
し、且つ、前記弁体26に常時前記2個の高圧導管25
a,25bのうちのいずれか一方を遮蔽する手段を設け
たことを特徴とする。この構成を採ることにより、高圧
導管から吐出される高温高圧の流体を対向する導管に直
線的に流すことができるため流体の圧力損失を低減する
ことができる。
According to a first aspect of the present invention, there is provided a high-efficiency four-way switching valve comprising: a tubular valve body having both ends closed; a valve seat provided inside the valve body; The valve seat 21
, Two conduits 22 and 24 and one low-pressure conduit 23 provided in a row, a valve element 26 slidably provided on the valve seat 21, and a valve body 26 facing the valve seat 21. A high-pressure conduit 25 provided on the wall of the valve body 20. The high-pressure conduit 25 is formed in two branches, and the two high-pressure conduits 25a and 25b are divided into two branches. Conduit 2
2 and 24 are disposed on the valve body 20 so as to face the two high-pressure conduits 25 at all times.
a, means for shielding either one of 25a and 25b is provided. By adopting this configuration, the high-temperature and high-pressure fluid discharged from the high-pressure conduit can be linearly flowed to the opposed conduit, so that the pressure loss of the fluid can be reduced.

【0012】また、請求項2は、前記高圧導管25a,
25bのうちのいずれか一方を遮蔽する手段は、弁体2
6の肉厚を大にしたことを特徴とする。また、請求項3
は、前記高圧導管25a,25bのうちのいずれか一方
を遮蔽する手段は、弁体26に、カバー27を設けたこ
とを特徴とする。この構成を採ることにより、高圧導管
から吐出される高温高圧の流体を対向する導管に直線的
に流すことができ、且つ高温高圧の流体の熱が弁体の高
圧側から低圧側へと伝導するのを防止し、熱ロスを減少
させることができる。
[0012] The second aspect of the present invention relates to the high-pressure conduit 25a,
Means for shielding any one of the valve bodies 25b
6 is characterized in that the thickness is increased. Claim 3
Is characterized in that a means for shielding one of the high-pressure conduits 25a and 25b is provided with a cover 27 on the valve body 26. By adopting this configuration, the high-temperature and high-pressure fluid discharged from the high-pressure conduit can be linearly flowed to the opposed conduit, and the heat of the high-temperature and high-pressure fluid is conducted from the high-pressure side to the low-pressure side of the valve body. And heat loss can be reduced.

【0013】また、請求項4は、前記弁体26の低圧側
空間を大きくして低圧側の圧力損失を低減したことを特
徴とする。この構成を採ることにより、低圧側の流体抵
抗を低減することができる。
Further, the fourth aspect of the present invention is characterized in that the low pressure side space of the valve body 26 is enlarged to reduce the pressure loss on the low pressure side. With this configuration, the fluid resistance on the low pressure side can be reduced.

【0014】[0014]

【発明の実施の形態】図1は本発明の高効率四方切換弁
の第1の実施の形態を示す図である。同図において、2
0は弁本体であり、該弁本体20は両端が閉じた筒状を
なし、その内部には一方が平面21aをなす弁座21が
設けられている。そして該弁座21には2個の導管2
2,24と、その中間に配置された1個の低圧導管23
とが1列に設けられている。
FIG. 1 is a diagram showing a first embodiment of a high-efficiency four-way switching valve according to the present invention. In the figure, 2
Reference numeral 0 denotes a valve body, and the valve body 20 has a cylindrical shape with both ends closed, and a valve seat 21 having one surface 21a is provided in the inside thereof. The valve seat 21 has two conduits 2.
2 and 24 and one low-pressure conduit 23 disposed therebetween.
Are provided in a line.

【0015】また、弁本体20の弁座21に対向する壁
には高圧導管25が設けられている。そして該高圧導管
25は二股25a,25bに形成され、その二股に別れ
た各導管はそれぞれ前記弁座21の高圧ポート22,2
4に対向して開口している。
A high pressure conduit 25 is provided on a wall of the valve body 20 facing the valve seat 21. The high-pressure conduit 25 is formed into two branches 25a and 25b, and each of the two branches is connected to a high-pressure port 22, 2 of the valve seat 21.
4 and open.

【0016】また、弁座21と該弁座21に対向する壁
との間には弁座21の上を図示なき駆動手段によりスラ
イドする弁体26が設けられている。該弁体26は、ア
ーチ状をなし、図においては導管22と低圧導管23と
を連通しているが、矢印A方向に摺動させて弁座21の
右方に位置させれば低圧導管23と導管24とを連通す
る。また、該弁体26の上部には肉厚部26aが形成さ
れ、その両端は高圧導管を遮蔽する手段としての張出部
26bが形成されている。該張出部26bは図において
は一方の高圧導管25aを塞いでいるが、該弁体26を
矢印A方向に摺動させて弁座11の右方に位置させれば
張出部26bは他方の高圧導管25bを塞ぐようになっ
ている。
A valve 26 is provided between the valve seat 21 and a wall facing the valve seat 21 so as to slide on the valve seat 21 by driving means (not shown). The valve body 26 has an arch shape and communicates the conduit 22 and the low-pressure conduit 23 in the figure. However, if the valve 26 is slid in the direction of arrow A and positioned to the right of the valve seat 21, the low-pressure conduit 23 And the conduit 24. A thick portion 26a is formed on the upper portion of the valve body 26, and projecting portions 26b as means for shielding the high-pressure conduit are formed at both ends. The overhang portion 26b closes one high-pressure conduit 25a in the figure, but if the valve body 26 is slid in the direction of arrow A and positioned to the right of the valve seat 11, the overhang portion 26b will be on the other side. Of the high pressure conduit 25b.

【0017】このように構成された本実施の形態は、図
2(a)に示すように弁体26が左方に位置するときは
高圧導管25の二股に分かれた一方の高圧導管25aは
張出部25bにより遮蔽され、他方の高圧導管25bか
ら出た流れは矢印Bの如く導管24に直行できるように
なっている。従って圧力損失は少なくなり、同時に冷媒
が弁体26に直接当たらないため熱ロスも少なくなる。
In this embodiment constructed as described above, when the valve body 26 is located on the left side as shown in FIG. 2A, one of the high-pressure conduits 25a, which is divided into two branches of the high-pressure conduit 25, is tensioned. The flow which is shielded by the outlet 25b and exits from the other high-pressure conduit 25b can go straight to the conduit 24 as shown by the arrow B. Therefore, pressure loss is reduced, and at the same time, heat loss is also reduced because the refrigerant does not directly hit the valve body 26.

【0018】また、図2(b)に示すように弁体26を
右方に位置させれば、高圧導管25bは張出部26bに
より遮蔽され、高圧導管25aから出た流れは矢印Cの
如く導管22に直行する。従って(a)図の場合と同様
に圧力損失は少なくなり、同時に熱ロスも少なくなる。
When the valve body 26 is located to the right as shown in FIG. 2B, the high-pressure conduit 25b is shielded by the overhang 26b, and the flow coming out of the high-pressure conduit 25a is as shown by arrow C. Go straight to conduit 22. Accordingly, the pressure loss is reduced and the heat loss is reduced at the same time as in the case of FIG.

【0019】図3は本発明の高効率四方切換弁の第2の
実施の形態を示す図である。本実施の形態が、第1の実
施の形態と異なるところは、弁体26の形状を異ならせ
たことで他は同様である。本実施の形態の特徴は、弁体
26に高圧導管を遮蔽する遮蔽手段の機能を持たせたま
ま同図に示すように肉厚を大にしたことである。
FIG. 3 is a view showing a second embodiment of the high-efficiency four-way switching valve of the present invention. This embodiment is different from the first embodiment in that the shape of the valve body 26 is different, and the other points are the same. The feature of this embodiment is that the wall thickness is increased as shown in the figure while the valve body 26 has the function of a shielding means for shielding the high-pressure conduit.

【0020】このように構成された本実施の形態の作用
を次に説明する。前述の第1の実施の形態では、暖房
時、冷房時、いずれの状態においても弁体26に直接、
高温高圧の冷媒が当たり低圧側への熱伝導により熱ロス
を生ずるが、本実施の形態では弁体26の肉圧を厚くす
ることにより低圧側への熱伝導を減少させ、熱ロスを少
なくすることができる。
The operation of the embodiment constructed as described above will be described below. In the first embodiment described above, the valve 26 is directly connected to the valve 26 in any of the heating and cooling states.
Although the high-temperature and high-pressure refrigerant is hit and heat loss occurs due to heat conduction to the low-pressure side, in the present embodiment, the heat conduction to the low-pressure side is reduced by increasing the wall pressure of the valve body 26 to reduce heat loss. be able to.

【0021】図4(a)及び(b)は本発明の高効率四
方切換弁の第3の実施の形態を示す図である。本実施の
形態が第1の実施の形態と異なるところは、弁体26に
カバーを設けたことで、他は同様である。即ち、本実施
の形態は弁体26に当たる高温高圧の冷媒の熱ロスを少
なくするために、弁体26の上部にカバー27を設けた
ものであり、(a)図のものは弁体26との間に空間2
7aを持たせており、(b)図のものは弁体26との間
に空間27a、カバー内に空間27bの2つの空間を持
たせている。このように構成された本実施の形態はカバ
ー27と該カバーにより形成される空間とにより熱の伝
導を防ぎ、熱ロスを減少させることができる。
FIGS. 4A and 4B are views showing a third embodiment of the high-efficiency four-way switching valve according to the present invention. The present embodiment is different from the first embodiment in that a cover is provided on the valve body 26, and the other points are the same. That is, in the present embodiment, a cover 27 is provided on the upper portion of the valve body 26 in order to reduce the heat loss of the high-temperature and high-pressure refrigerant that hits the valve body 26. Space 2 between
7a, the one shown in FIG. 2 (b) has a space 27a between the valve body 26 and a space 27b in the cover. In the present embodiment configured as described above, heat conduction can be prevented by the cover 27 and the space formed by the cover, and heat loss can be reduced.

【0022】図5(b)は本発明の高効率四方切換弁の
第4の実施の形態を示す図である。本実施の形態が第1
の実施の形態と異なるところは、弁体26の形状を変え
たことであり、他は同様である。本実施の形態は高圧導
管25を二股にしたことにより弁体26の上方の空間を
利用することができるため、同図に示すように、弁体2
6の内側空間28を従来(点線で示す)に比し大きく形
成したことである。このように構成された本実施の形態
は、低圧側の流れに与える抵抗を減少し、圧力損失を低
減することができる。
FIG. 5B is a diagram showing a fourth embodiment of the high-efficiency four-way switching valve of the present invention. This embodiment is the first
The difference from this embodiment is that the shape of the valve body 26 is changed, and the other is the same. In this embodiment, since the high pressure conduit 25 is bifurcated, the space above the valve body 26 can be used, and as shown in FIG.
6 is that the inner space 28 is formed larger than the conventional one (shown by a dotted line). In the present embodiment configured as described above, the resistance applied to the flow on the low pressure side can be reduced, and the pressure loss can be reduced.

【0023】[0023]

【発明の効果】本発明の高効率四方切換弁に依れば、高
圧側及び低圧側の圧力損失を少なくすることができ、且
つ熱ロスも少なくすることが可能となる。またこの効果
は冷暖房装置に用いた際に、暖房時、冷房時のいずれの
状態においても同様な効果を得ることができる。
According to the high-efficiency four-way switching valve of the present invention, the pressure loss on the high pressure side and the low pressure side can be reduced, and the heat loss can be reduced. Further, when this effect is used for a cooling and heating device, the same effect can be obtained in any state of heating and cooling.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の高効率四方切換弁の第1の実施の形態
を示す図である。
FIG. 1 is a diagram showing a high-efficiency four-way switching valve according to a first embodiment of the present invention.

【図2】本発明の高効率四方切換弁の第1の実施の形態
の作用を説明するための図であり、(a)は暖房時の状
態、(b)は冷房時の状態を示す図である。
FIGS. 2A and 2B are diagrams for explaining the operation of the first embodiment of the high-efficiency four-way switching valve of the present invention, wherein FIG. 2A illustrates a state during heating, and FIG. 2B illustrates a state during cooling. It is.

【図3】本発明の高効率四方切換弁の第2の実施の形態
を示す図である。
FIG. 3 is a view showing a second embodiment of the high-efficiency four-way switching valve of the present invention.

【図4】本発明の高効率四方切換弁の第3の実施の形態
を示す図である。
FIG. 4 is a view showing a third embodiment of the high-efficiency four-way switching valve of the present invention.

【図5】本発明の高効率四方切換弁の第4の実施の形態
を示す図である。
FIG. 5 is a diagram showing a fourth embodiment of the high-efficiency four-way switching valve of the present invention.

【図6】従来の冷暖房装置を説明する概略図である。FIG. 6 is a schematic diagram illustrating a conventional cooling and heating device.

【図7】従来の四方切換弁において高圧導管の位置を変
えた場合の流体の流れを説明するための図である。
FIG. 7 is a diagram for explaining the flow of fluid when the position of a high-pressure conduit is changed in a conventional four-way switching valve.

【符号の説明】[Explanation of symbols]

20…弁本体 21…弁座 22,24…導管 23…低圧導管 25,25a,25b…高圧導管 26…弁体 26a…肉厚部 26b…張出部 27…カバー 27a,27b…空間 28…弁体の内側空間 DESCRIPTION OF SYMBOLS 20 ... Valve main body 21 ... Valve seats 22 and 24 ... Conduit 23 ... Low-pressure conduit 25, 25a, 25b ... High-pressure conduit 26 ... Valve 26a ... Thick part 26b ... Projection part 27 ... Cover 27a, 27b ... Space 28 ... Valve Inside body space

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 両端が閉じた筒状の弁本体(20)と、
該弁本体(20)の内部に設けられた弁座(21)と、
該弁座(21)に1列に設けられた2個の導管(22,
24)及び1個の低圧導管(23)と、該弁座(21)
の上を摺動可能に設けられた弁体(26)と、前記弁座
(21)に対向して弁本体(20)の壁に設けられた高
圧導管(25)と、を具備してなる四方切換弁におい
て、 前記高圧導管(25)を二股に形成し、該二股にした2
本の高圧導管(25a,25b)を前記2個の導管(2
2,24)にそれぞれ対向するように弁本体(20)に
配設し、且つ、前記弁体(26)に常時前記2個の高圧
導管(25a,25b)のうちのいずれか一方を遮蔽す
る手段を設けたことを特徴とする高効率四方切換弁。
1. A cylindrical valve body (20) having both ends closed,
A valve seat (21) provided inside the valve body (20);
The valve seat (21) has two conduits (22,
24) and one low pressure conduit (23) and said valve seat (21)
And a high-pressure conduit (25) provided on the wall of the valve body (20) facing the valve seat (21). In the four-way switching valve, the high-pressure conduit (25) is formed in two branches,
The two high pressure conduits (25a, 25b) are connected to the two conduits (2
2, 24) are disposed on the valve body (20) so as to face each other, and the valve body (26) always shields one of the two high-pressure conduits (25a, 25b). A high-efficiency four-way switching valve characterized by including means.
【請求項2】 前記高圧導管(25a,25b)のうち
のいずれか一方を遮蔽する手段は、弁体(26)の肉厚
を大にしたことを特徴とする請求項1記載の高効率四方
切換弁。
2. The high-efficiency square as set forth in claim 1, wherein the means for shielding one of the high-pressure conduits (25a, 25b) has a large thickness of the valve body (26). Switching valve.
【請求項3】 前記高圧導管(25a,25b)のうち
のいずれか一方を遮蔽する手段は、弁体(26)に、カ
バー(27)を設けたことを特徴とする請求項1記載の
高効率四方切換弁。
3. The valve according to claim 1, wherein the means for shielding one of the high-pressure conduits (25a, 25b) is provided with a cover (27) on the valve body (26). Efficiency four-way switching valve.
【請求項4】 前記弁体(26)の低圧側空間を大きく
して低圧側の圧力損失を低減したことを特徴とする請求
項1記載の高効率四方切換弁。
4. The high-efficiency four-way switching valve according to claim 1, wherein the low-pressure side space of the valve body (26) is enlarged to reduce the pressure loss on the low-pressure side.
JP2000206858A 2000-07-04 2000-07-04 Four-way selector valve of high efficiency Pending JP2002022315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000206858A JP2002022315A (en) 2000-07-04 2000-07-04 Four-way selector valve of high efficiency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000206858A JP2002022315A (en) 2000-07-04 2000-07-04 Four-way selector valve of high efficiency

Publications (1)

Publication Number Publication Date
JP2002022315A true JP2002022315A (en) 2002-01-23

Family

ID=18703719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000206858A Pending JP2002022315A (en) 2000-07-04 2000-07-04 Four-way selector valve of high efficiency

Country Status (1)

Country Link
JP (1) JP2002022315A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286452A (en) * 2007-05-16 2008-11-27 Fujitsu General Ltd Refrigerant circuit
JP2010112517A (en) * 2008-11-10 2010-05-20 Hitachi Appliances Inc Four-way selector valve and refrigeration cycle device
JP2010159882A (en) * 2010-04-02 2010-07-22 Mitsubishi Electric Corp Four-way valve
JP2011047530A (en) * 2009-08-25 2011-03-10 Hitachi Appliances Inc Air conditioner
JP2014020412A (en) * 2012-07-13 2014-02-03 Fujitsu General Ltd Four-way valve
CN105179741A (en) * 2014-06-10 2015-12-23 特灵国际有限公司 Five-way heat pump reversing valve
JP2017002979A (en) * 2015-06-09 2017-01-05 株式会社鷺宮製作所 Slide type selector valve and refrigeration cycle system
JP2017036766A (en) * 2015-08-07 2017-02-16 株式会社鷺宮製作所 Slide type switching valve and refrigeration cycle system
CN106838374A (en) * 2015-12-07 2017-06-13 浙江三花制冷集团有限公司 Reversal valve and the refrigeration system with the reversal valve
CN107489786A (en) * 2016-06-13 2017-12-19 株式会社鹭宫制作所 Slidingtype switching valve and refrigerating circulation system
CN108953675A (en) * 2017-05-18 2018-12-07 浙江三花制冷集团有限公司 A kind of reversal valve and its manufacturing method
CN109838583A (en) * 2019-03-25 2019-06-04 郑州云宇新能源技术有限公司 Four-way reversing valve
WO2019163090A1 (en) * 2018-02-23 2019-08-29 三菱電機株式会社 Flow path switching valve and air conditioner
CN114838528A (en) * 2021-02-01 2022-08-02 浙江盾安人工环境股份有限公司 Four-way reversing valve and air conditioner

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JPH0525271U (en) * 1991-09-02 1993-04-02 シヤープ株式会社 Switching valve
JPH0720475U (en) * 1993-09-14 1995-04-11 株式会社イズミ技研 Four-way valve

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JPS5682362U (en) * 1979-11-28 1981-07-03
JPS5868561A (en) * 1981-10-21 1983-04-23 Hitachi Ltd Four-way valve
JPS6249080A (en) * 1985-08-28 1987-03-03 Toshiba Corp Four-way valve device
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JPH0720475U (en) * 1993-09-14 1995-04-11 株式会社イズミ技研 Four-way valve

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286452A (en) * 2007-05-16 2008-11-27 Fujitsu General Ltd Refrigerant circuit
JP2010112517A (en) * 2008-11-10 2010-05-20 Hitachi Appliances Inc Four-way selector valve and refrigeration cycle device
JP2011047530A (en) * 2009-08-25 2011-03-10 Hitachi Appliances Inc Air conditioner
JP2010159882A (en) * 2010-04-02 2010-07-22 Mitsubishi Electric Corp Four-way valve
JP2014020412A (en) * 2012-07-13 2014-02-03 Fujitsu General Ltd Four-way valve
CN105179741A (en) * 2014-06-10 2015-12-23 特灵国际有限公司 Five-way heat pump reversing valve
JP2017002979A (en) * 2015-06-09 2017-01-05 株式会社鷺宮製作所 Slide type selector valve and refrigeration cycle system
CN106440550A (en) * 2015-08-07 2017-02-22 株式会社鹭宫制作所 Sliding switching valve and refrigeration cycle system
JP2017036766A (en) * 2015-08-07 2017-02-16 株式会社鷺宮製作所 Slide type switching valve and refrigeration cycle system
CN106440550B (en) * 2015-08-07 2018-11-09 株式会社鹭宫制作所 Slidingtype switching valve and refrigerating circulation system
CN106838374A (en) * 2015-12-07 2017-06-13 浙江三花制冷集团有限公司 Reversal valve and the refrigeration system with the reversal valve
CN106838374B (en) * 2015-12-07 2019-07-09 浙江三花制冷集团有限公司 Reversal valve and refrigeration system with the reversal valve
CN107489786A (en) * 2016-06-13 2017-12-19 株式会社鹭宫制作所 Slidingtype switching valve and refrigerating circulation system
CN108953675A (en) * 2017-05-18 2018-12-07 浙江三花制冷集团有限公司 A kind of reversal valve and its manufacturing method
CN108953675B (en) * 2017-05-18 2020-03-27 浙江三花制冷集团有限公司 Reversing valve and manufacturing method thereof
WO2019163090A1 (en) * 2018-02-23 2019-08-29 三菱電機株式会社 Flow path switching valve and air conditioner
JPWO2019163090A1 (en) * 2018-02-23 2021-02-04 三菱電機株式会社 Flow path switching valve and air conditioner
CN109838583A (en) * 2019-03-25 2019-06-04 郑州云宇新能源技术有限公司 Four-way reversing valve
CN114838528A (en) * 2021-02-01 2022-08-02 浙江盾安人工环境股份有限公司 Four-way reversing valve and air conditioner

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