JPS63120887A - Water cooled enclosed type refrigerant compressor - Google Patents
Water cooled enclosed type refrigerant compressorInfo
- Publication number
- JPS63120887A JPS63120887A JP26671086A JP26671086A JPS63120887A JP S63120887 A JPS63120887 A JP S63120887A JP 26671086 A JP26671086 A JP 26671086A JP 26671086 A JP26671086 A JP 26671086A JP S63120887 A JPS63120887 A JP S63120887A
- Authority
- JP
- Japan
- Prior art keywords
- water
- electric motor
- compression device
- refrigerant compression
- sealed
- 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.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 239000000498 cooling water Substances 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 238000007710 freezing Methods 0.000 description 6
- 230000008014 freezing Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000084978 Rena Species 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Motor Or Generator Frames (AREA)
- Compressor (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電動機と圧縮機とが一恢密封化された密封型冷
媒圧縮装置における電動機冷却の水冷化に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to water cooling for motor cooling in a sealed refrigerant compression device in which an electric motor and a compressor are sealed together.
従来、冷媒圧縮機の回転軸はその本体を貫通する構造の
ために軸封装置を設ゆて冷媒ガスの漏洩を防止する機構
を備えているものであるが、これを完全無漏洩にするた
めには 前記軸封装置を排除し、密封型電動機をこれに
直結して駆動するようｋしたものであるが、このような
構造とすることは電動機と圧縮機との内部が相互に連通
し、冷媒が満されることにもなる。この場合に冷媒の種
類、例えばアンモニアの場合には電動機線輪に悪影響を
及ぼすことになるので、固定子と回転子との空隙に隔壁
となるキャンを挿入したキャンド型電動機とし、冷媒よ
り線輪を保護する構造が採られ、冷媒が７ｐン系のよ５
なものであれば線輪に対する影響もないので、線輪まで
冷媒に浸漬されるハーメチック凰電動機となる。この何
れの場合でも電動機で消費される損失は前記のそれぞれ
のモーターで異なるもののモーター人力の１０〜２０％
福度のものとなり、この損失による熱量は何らかの方法
で取り去らなゆればならない◇周知のように電動機の出
力はその温度上昇で制約されてしまうので、その冷却は
極めて重要なものとなる。然し、前述の密封型圧縮装置
用の電動機では冷媒が内部に満されているので、直接外
気による内部の冷却は不可能で、外部よりの冷却は不十
分である。小容量の家庭用冷麓庫、クーラーのような場
合には冷媒そのものによっての冷却が行なわれるうζ小
容量であり、その効率も問題視されないが、産業用冷却
装置のような大容量の装置ではその発生熱量も大きく、
綜合的の効率の良否は経済的の面で極めて重要なものに
なる。然し止むを得ず駆動電動機の内部に潤滑油と共に
多量の冷媒を注入し、これによって冷却を行っている。Conventionally, the rotating shaft of a refrigerant compressor has a structure that penetrates the main body, so a shaft sealing device is installed to prevent refrigerant gas from leaking, but in order to make this completely leak-free, In this method, the shaft sealing device is eliminated and a sealed electric motor is directly connected to it to drive it. However, this structure means that the insides of the electric motor and compressor are in communication with each other, It will also be filled with refrigerant. In this case, if the type of refrigerant is used, for example ammonia, it will have a negative effect on the motor coils, so we use a canned type motor with a can that acts as a partition inserted into the gap between the stator and rotor. It has a structure that protects the
If it is, there will be no effect on the coils, so it will be a hermetic motor with the coils immersed in the refrigerant. In any of these cases, the loss consumed by the electric motor is 10 to 20% of the motor's human power, although it differs for each motor mentioned above.
The amount of heat caused by this loss must be removed in some way.◇As is well known, the output of an electric motor is limited by its temperature rise, so cooling it is extremely important. However, in the above-mentioned electric motor for a hermetic compression device, since the inside is filled with refrigerant, it is impossible to directly cool the inside with outside air, and cooling from the outside is insufficient. In the case of small-capacity home refrigerators and coolers, cooling is performed by the refrigerant itself, so the capacity is small and its efficiency is not an issue, but in large-capacity devices such as industrial cooling equipment, The amount of heat generated is also large,
Comprehensive efficiency is extremely important from an economic perspective. However, it is unavoidable that a large amount of refrigerant is injected into the drive motor along with lubricating oil to achieve cooling.
これは圧縮装置としての機能の一部を自己冷却に使用さ
れるので、冷却装置としての綜合効率の低下を招くこと
になり、密封盤冷媒圧縮装置の開発の障害となっている
。運転の停止時、運転操作の過程などでは電動機内部に
冷媒が貯溜し、圧縮機の運転に伴ない冷媒が急速に蒸発
し、電動機そのものが零下の温度に達してしまうことが
ある。Since part of its function as a compression device is used for self-cooling, this results in a reduction in the overall efficiency of the cooling device, which is an obstacle to the development of a sealed disc refrigerant compression device. When the motor is stopped or during operation, refrigerant accumulates inside the motor, and as the compressor operates, the refrigerant evaporates rapidly, causing the motor itself to reach temperatures below zero.
従来、寒冷地で使用される圧縮機では圧縮機のピストン
の上方、或は油冷却器の水套部分が凍結し、その場合の
氷の膨張圧力で容器に亀裂が生じ、破損するような現象
が見られる。このような事例より圧縮機と一体、密封化
される電動機の冷却には水冷却方法が行なわれなかった
。Conventionally, in compressors used in cold regions, the upper part of the piston of the compressor or the water sleeve of the oil cooler freezes, and the expansion pressure of the ice causes cracks in the container and causes it to break. can be seen. Due to such cases, water cooling methods have not been used to cool electric motors that are sealed together with compressors.
然し、氷結の姿態については次のような特性がある。即
ち、水が結氷する場合にその体積は１０％近い体積膨張
があり、その圧縮強度は極めて大ぎなもので、これＫよ
り、一般の容器或は肉厚の鋳造物でも結氷が行なわれる
と容易に亀裂が生じ、破壊してしまうものである。これ
は水の満されている容器についてであって、冷却される
水中の仕切られた空間に対して結氷時に生ずる外圧につ
いては其の趣きがやや異っている。この場合に仕切られ
た空間が冷却源である場合には内方より外方に結氷の成
長が行なわれるので、前記空間に対する外圧は殆ど生ず
ることはないが、外より内方に結氷が進行する場合には
結氷の進行に伴い中心部に向つ【の内圧は生ずるものの
、氷の圧縮強度に対しズ引張強度は極めて小さいために
結氷時の体積膨張による外方先の圧力で既に結氷した外
部の結氷に、亀裂が入って膨張し、内部に発生した内圧
が減少してしまうことになる。前述の仕切られた空間の
壁が金属管、鋳鉄のような一般の素材でも圧縮強度は引
張強度に対しては極めて大きなもので結氷による内圧で
前記壁に亀裂が生じ、破損するようなことはない。However, the appearance of freezing has the following characteristics. In other words, when water freezes, its volume expands by nearly 10%, and its compressive strength is extremely large. This will cause cracks to form and result in destruction. This concerns a container filled with water, but the external pressure that is generated when freezing occurs in a partitioned space of water to be cooled is somewhat different. In this case, if the partitioned space is the cooling source, ice will grow from the inside to the outside, so almost no external pressure will be generated in the space, but the ice will grow from the outside to the inside. In some cases, as the ice progresses, internal pressure is generated toward the center, but since the tensile strength of the ice is extremely small compared to the compressive strength of the ice, the pressure on the outside due to the volume expansion during freezing causes the pressure on the outside that has already frozen to build up. The ice cracks and expands, reducing the internal pressure inside. Even if the walls of the partitioned space mentioned above are made of general materials such as metal pipes or cast iron, the compressive strength is extremely high compared to the tensile strength, and the internal pressure caused by freezing will not cause cracks in the walls and cause them to break. do not have.
即ち結果としては結氷時の体積膨張に対して結氷内部の
内圧には対応することが出来るが、外方に対する膨張圧
は極めて大きな値で容器の破損を招いてしまう。That is, as a result, it is possible to cope with the internal pressure inside the frozen container against the volumetric expansion during freezing, but the expansion pressure toward the outside is extremely large and causes damage to the container.
本発明は以上の点に鑑み行なわれたもので、密封型冷媒
圧縮装置によって冷媒を完全無漏洩とし、電動機の冷却
はその７レームの外周に設けた外被によって水套を構成
し、効率のよい冷却水による冷却を行なわせるようにし
たもので、冷却水の万一の結氷に対しても障害の発生の
憂いのないことが明らかになったからである。、と、れ
な図について説明する。The present invention has been made in view of the above points, and uses a sealed refrigerant compression device to completely eliminate refrigerant leakage.The motor is cooled by forming a water canopy with a jacket provided on the outer periphery of the 7 rams, thereby improving efficiency. This is because it has been made clear that there is no need to worry about problems even in the unlikely event that the cooling water freezes, since it is designed to provide cooling with good quality cooling water. , I will explain about the Rena diagram.
第１図はキャンド型電動機と冷媒圧縮機とを一体、密封
化したものの略図で１は軸の貫通部における軸封装置を
除いた冷媒圧縮機、２は冷媒の吸入、吐出管、３はキャ
ンド型電動機、４は回転子、５は固定子線輪６０巻かれ
た固定子鉄戊−１７は電動機５と冷媒圧縮機１とを結合
させ密封構造とするための１対の７ランジ、８は固定子
鉄心を保持するフレーム、９は軸受ブラケット、１０は
組立型据付脚１１は回転子と固定子鉄心との空隙に外気
と機内を隔離するキャン、１２は円筒形をなした水套外
被、１３．１４は水套外被とフレームとを結合し水套を
構成させる水套用７ランジ、１５．１６は冷却水の吐出
、流入口、ｔは締付ボルトを示す、中心線キャンド屋電
動機３は冷媒圧側１で圧縮される冷媒が７ンモエ７のよ
うなａｍの絶縁物に有害な場合に使用されるものである
。Figure 1 is a schematic diagram of a canned electric motor and a refrigerant compressor that are integrated and sealed. 1 is the refrigerant compressor excluding the shaft sealing device at the shaft penetration part, 2 is the refrigerant suction and discharge pipe, and 3 is the canned type electric motor, 4 is a rotor, 5 is a stator wire wound with 60 coils, 17 is a pair of 7 langes for connecting the electric motor 5 and the refrigerant compressor 1 to form a sealed structure, 8 is a rotor; A frame for holding the stator core, 9 a bearing bracket, 10 an assembled installation leg 11, a can for separating the outside air and the inside of the machine in the gap between the rotor and the stator core, and 12 a cylindrical water jacket. , 13.14 is the 7-lunge for the water mantle that connects the water mantle jacket and the frame to form the water mantle, 15.16 is the cooling water discharge and inlet, and t is the tightening bolt. 3 is used when the refrigerant compressed on the refrigerant pressure side 1 is harmful to the insulators of the am, such as the refrigerant 7.
一般の電動機では固定子鉄心とフレームとの間は７ンー
ムに取りつけられたリズで空隙を設けて通風路とし、外
気で冷却されルカ、密封盤の電動機のフレームを介して
冷却する場合にはこの空隙は熱の伝達を妨げることにな
り、フレームと固定子鉄心との外周とは密着した図のよ
うな構造が採ら□ れる。キャン内部にある回転子の発
生熱もフレームを通して冷却水で冷却される◇第２図は
冷媒圧縮機で圧縮される冷媒がフロン系のよ５に線輪の
絶縁に影響を及ぼさない場合１／Ｃ＊Ｍされるハーメチ
ック厘電動機３で、線輪６は常に冷媒に浸漬される。In a general electric motor, a gap is provided between the stator core and the frame using a 7-meter gap to create a ventilation path. Since the voids impede heat transfer, a structure as shown in the figure is adopted in which the outer peripheries of the frame and stator core are in close contact with each other. The heat generated by the rotor inside the can is also cooled by the cooling water through the frame. ◇Figure 2 shows the case where the refrigerant compressed by the refrigerant compressor does not affect the insulation of the wire like a fluorocarbon type 5. In the hermetic motor 3 subjected to C*M, the wire ring 6 is always immersed in the refrigerant.
電動機フレーム８と水套外被１２とにより冷却水用水套
が構成される。必要に応じて前記水套が組立てられた後
に組立型据付脚１０が戦りつゆられる。The motor frame 8 and the water canopy jacket 12 constitute a water canal for cooling water. If necessary, after the water canopy has been assembled, the prefabricated mounting legs 10 are swung.
第３図は冷媒圧縮機１に対して片持型として、７ランジ
７でｖ！ｌ封型電型電動機３合される。電動機３はキャ
ンド型、ハーメチック屋の何れであっても差支はない。FIG. 3 shows the refrigerant compressor 1 as a cantilever type with 7 lunges 7 and v! Three sealed type electric motors are combined. There is no difference whether the electric motor 3 is a canned type or a hermetic type.
このよ５な片持製構造とするととｋより、水套外被１２
の形状は庭付円筒状とすることができ、構造を単純化し
、更に万一の破損や、水套内の掃除などにも取外し、取
付作業が極めて容易に行なうことができる。With this five-sided cantilevered structure, the water mantle outer cover 12
The shape of the can be made into a cylindrical shape, which simplifies the structure, and can be removed in case of breakage or to clean the inside of the canister, making it extremely easy to install.
第４図は底付円筒鳳の水套外被１２の外観略図で、薄手
の金属板、或は樹脂板等を波形に形成し、外気による冷
却も兼ね、大きな弾性を持たせ、結氷時にも耐え得るこ
とができることになる。Fig. 4 is a schematic diagram of the external appearance of the water mantle jacket 12 of a cylindrical case with a bottom.It is made of a thin metal plate or resin plate formed into a corrugated shape, which also serves for cooling by the outside air and has great elasticity, so that it can withstand freezing. It becomes something you can endure.
本発明は以上のように構成したために
冷媒圧縮機として最も問題点のある軸封装置を排除し、
完全無漏洩の密封型圧縮装置として構成すると共に、電
動機の冷却を水套を用いた水冷却として冷却効果を高め
、従来の密封型冷却装置で問題の冷媒による電動機の自
己冷却で生ずる総合効率の低下を回避し、経済運転が可
能となったものである。これは水套内の冷却水の凍結時
で生する水套の亀裂、破損の憂いをなくシ、若し、これ
が発生しても水套外被は組立式で構造が簡単のために交
換、保守が容易である。このような水冷却による電動機
との結合する冷媒圧縮機はその稽類に無関係である。Since the present invention is configured as described above, the shaft sealing device, which is the most problematic for a refrigerant compressor, is eliminated,
In addition to being configured as a completely leak-free hermetic compression device, the motor is cooled with water using a water jacket to improve the cooling effect, and the overall efficiency achieved by self-cooling the motor with refrigerant, which is a problem with conventional sealed cooling devices, has been improved. This avoids the decline and enables economical operation. This eliminates the worry of cracks and damage to the water cannula that occur when the cooling water inside the cannula freezes, and even if this occurs, the outer cover of the water cannula is easy to assemble and can be easily replaced. Easy to maintain. A refrigerant compressor coupled to such a water-cooled electric motor is irrelevant to the concept.
第１図はキャンド凰電動機と冷媒圧縮機と一体化した密
封型冷媒圧縮装置の断面略図、第２図はハーメチック盤
電動機を使用した密封型冷媒圧縮装置の断面略図、第３
図は片持式の７ランジ型電動機を使用した密封型冷媒装
置の断面略図、第４図は庭付円筒型水套外被の外観図で
ある。
１；冷媒圧縮機、２；冷媒の吸入、吐出管、７；結合７
ランジ、８；フレーム、
９：軸受プラタン）、１０：組立型据付脚、１１；キャ
ン、１２；水套外被、１３，１４ ：水套用７ランジ、
１５，１６：冷却水の吐出、流入口。
特許出願人 株式会社前川裏作所
代表者 前川正雄
手続補正書（自発）
昭和６１年１２月ノア日Figure 1 is a schematic cross-sectional view of a sealed refrigerant compression device that integrates a canned electric motor and a refrigerant compressor, Figure 2 is a cross-sectional schematic diagram of a sealed refrigerant compression device that uses a hermetic plate motor, and Figure 3
The figure is a schematic cross-sectional view of a sealed refrigerant device using a cantilevered seven-lunge electric motor, and FIG. 4 is an external view of a cylindrical water canopy with a garden. 1; Refrigerant compressor, 2; Refrigerant suction and discharge pipe, 7; Connection 7
Lunge, 8; Frame, 9: Bearing platen), 10: Assembly type installation leg, 11; Can, 12; Water mantle outer cover, 13, 14: 7 lunges for water mantle,
15, 16: Cooling water discharge and inflow ports. Patent applicant: Maekawa Urasakusho Co., Ltd. Representative: Masao Maekawa Procedural amendment (voluntary) December 1986 Noah date
Claims (9)
媒圧縮装置において、電動機の固定 子鉄心のフレームの外周に組立型の水套用 外被を設け、冷却水套としたことを特徴と する水冷却による密封型冷媒圧縮装置。(1) A sealed refrigerant compression device in which an electric motor and a compressor are integrated and sealed, characterized in that an assembled water cannulation jacket is provided around the outer periphery of the frame of the stator core of the motor to serve as a cooling water cannula. A sealed refrigerant compression device using water cooling.
囲第１項記載の水冷却による密封 型冷媒圧縮装置。(2) The water-cooled sealed refrigerant compression device according to claim 1, wherein the electric motor is a canned type electric motor.
求の範囲第１項記載の水冷却による 密封型冷媒圧縮装置。(3) The water-cooled sealed refrigerant compression device according to claim 1, wherein the electric motor is a hermetically operated electric motor.
出部分を有する場合に、少くとも固 定子鉄心巾に相当する固定子フレームの位 置の外周に２つのフランジを設け、前記フ ランジにこれに対応する円筒状の組立型水 套用外被を取りつけ、次に軸受カバーなど に前記突出部を取りける構造とした特許請 求範囲第１項記載の水冷却による密封型冷 媒圧縮装置。(4) When the electric motor is cylindrical in shape and has a protruding part such as a mounting leg, two flanges are provided on the outer periphery of the stator frame at a position corresponding to at least the stator core width, and the The water-cooled sealed refrigerant compression device according to claim 1, which has a structure in which a corresponding cylindrical assembling water cannulation outer cover is attached, and then the protrusion can be attached to a bearing cover or the like.
れた密封型冷媒圧縮装置において、 前記電動機フレームの負荷側フランジに底 付円筒状水套用外被を取り付ける構造とし た特許請求範囲第１項記載の水冷却による 密封型冷媒圧縮装置。(5) A patent claim for a sealed refrigerant compression device in which an electric motor is cantilevered and integrated with a compressor, in which a bottomed cylindrical water canopy outer cover is attached to the load side flange of the electric motor frame. A sealed refrigerant compression device using water cooling according to item 1.
許請求範囲第１項記載の水冷却によ る密封型冷媒圧縮装置。(6) The water-cooled sealed refrigerant compression device according to claim 1, wherein the outer cover for the water canister is made of an elastic metal or resin material.
第１項記載の水冷却による密封型冷 媒圧縮装置。(7) A sealed refrigerant compression device using water cooling as set forth in claim 1, wherein the water jacket has a wave-like structure.
ない密着構造とした特許請求範囲第 １項記載の水冷却による密封型冷媒圧縮装 置。(8) The water-cooled sealed refrigerant compression device according to claim 1, wherein the outer periphery of the fixed core of the electric motor and the inner periphery of the frame are in close contact with each other without any gaps.
なく、電動機と一体、密封化された 密封型冷媒圧縮装置の電動機を水冷化した 特許請求範囲第１項記載の水冷却による密 封型冷媒圧縮装置。(9) Irrespective of whether the refrigerant compressor is a volumetric type, a circular center type, or any other type, the refrigerant compressor is integrated with an electric motor and is sealed, and the electric motor of the sealed refrigerant compression device is water-cooled according to claim 1. Sealed refrigerant compression equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61266710A JPH0765586B2 (en) | 1986-11-11 | 1986-11-11 | Water-cooled sealed refrigerant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61266710A JPH0765586B2 (en) | 1986-11-11 | 1986-11-11 | Water-cooled sealed refrigerant compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63120887A true JPS63120887A (en) | 1988-05-25 |
| JPH0765586B2 JPH0765586B2 (en) | 1995-07-19 |
Family
ID=17434605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61266710A Expired - Fee Related JPH0765586B2 (en) | 1986-11-11 | 1986-11-11 | Water-cooled sealed refrigerant compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0765586B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6692205B2 (en) * | 2001-07-19 | 2004-02-17 | Kabushiki Kaisha Toyota Jidoshokki | Compressor incorporated with motor and its cooling jacket |
| JP2008527955A (en) * | 2005-11-02 | 2008-07-24 | シーメンス アクチエンゲゼルシヤフト | Electric motor |
| JP2016086611A (en) * | 2014-10-29 | 2016-05-19 | 三菱電機株式会社 | Stator core cooling structure for rotary electric machine |
| JP2017225265A (en) * | 2016-06-16 | 2017-12-21 | 本田技研工業株式会社 | Rotary electric machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS475401U (en) * | 1971-02-12 | 1972-09-18 | ||
| JPS5427605U (en) * | 1977-07-26 | 1979-02-23 | ||
| JPS59182690U (en) * | 1983-05-25 | 1984-12-05 | 株式会社 アンレツト | Roots blower cooling system |
-
1986
- 1986-11-11 JP JP61266710A patent/JPH0765586B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS475401U (en) * | 1971-02-12 | 1972-09-18 | ||
| JPS5427605U (en) * | 1977-07-26 | 1979-02-23 | ||
| JPS59182690U (en) * | 1983-05-25 | 1984-12-05 | 株式会社 アンレツト | Roots blower cooling system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6692205B2 (en) * | 2001-07-19 | 2004-02-17 | Kabushiki Kaisha Toyota Jidoshokki | Compressor incorporated with motor and its cooling jacket |
| JP2008527955A (en) * | 2005-11-02 | 2008-07-24 | シーメンス アクチエンゲゼルシヤフト | Electric motor |
| JP2016086611A (en) * | 2014-10-29 | 2016-05-19 | 三菱電機株式会社 | Stator core cooling structure for rotary electric machine |
| CN106208439A (en) * | 2014-10-29 | 2016-12-07 | 三菱电机株式会社 | The stator core cooling structure of electric rotating machine and manufacture method thereof |
| US9866087B2 (en) | 2014-10-29 | 2018-01-09 | Mitsubishi Electric Corporation | Cooling structure for cooling a stator core of a rotating electrical machine and method of manufacturing the cooling structure |
| JP2017225265A (en) * | 2016-06-16 | 2017-12-21 | 本田技研工業株式会社 | Rotary electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0765586B2 (en) | 1995-07-19 |
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