JPS647229B2 - - Google Patents
Info
- Publication number
- JPS647229B2 JPS647229B2 JP8773483A JP8773483A JPS647229B2 JP S647229 B2 JPS647229 B2 JP S647229B2 JP 8773483 A JP8773483 A JP 8773483A JP 8773483 A JP8773483 A JP 8773483A JP S647229 B2 JPS647229 B2 JP S647229B2
- Authority
- JP
- Japan
- Prior art keywords
- center housing
- chamber
- support device
- rotary sleeve
- guide groove
- 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.)
- Expired
Links
- 239000012530 fluid Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 208000012661 Dyskinesia Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/348—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Description
【発明の詳細な説明】
<産業上の利用分野>
本発明はセンターハウジングに回転自在に嵌合
された回転スリーブと、その回転スリーブの偏心
位置において回転するロータと、そのロータに出
入自在に嵌装されたベーンとを備えた回転圧縮機
に使用される回転スリーブの支持装置に関するも
のであり、さらに詳言すると、センターハウジン
グと回転スリーブの間に形成された薄層の空気軸
受室からなる流体支持装置に係わるものである。
回転スリーブを流体支持装置で支持する回転圧縮
機は、高速回転時の発熱と摩擦損失が小さいた
め、内燃機関、特に自動車用エンジンの過給機に
適している。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a rotating sleeve rotatably fitted to a center housing, a rotor rotating at an eccentric position of the rotating sleeve, and a rotor fitted to the rotor so as to be freely removable and removable. The invention relates to a support device for a rotary sleeve used in a rotary compressor equipped with vanes, and more specifically, a fluid bearing chamber consisting of a thin air bearing chamber formed between a center housing and a rotary sleeve. This relates to a support device.
A rotary compressor in which a rotating sleeve is supported by a fluid support device generates less heat and friction loss during high-speed rotation, and is therefore suitable for internal combustion engines, particularly superchargers for automobile engines.
<従来技術>
本願の発明者は、先に、ロータとセンターハウ
ジングの間に回転スリーブを介在させ、その回転
スリーブを空気等の圧縮性流体で支持するベーン
形回転圧縮機の提案(特開昭58―65988号公報)
をした。その圧縮機は、回転スリーブがベーンと
共に回転してベーン先端の摺動による発熱と摩耗
を未然に防止するので、低速から高速までの広い
範囲の回転数で運転される自動車エンジン等の過
給機として最適なものといえる。しかし、内部の
吐出側の高圧のため回転スリーブが高圧側に寄つ
てセンターハウジングと直に接触すると、接触個
所にスカツフイングを生じ、回転スリーブの回転
が不良になるおそれがあつた。<Prior art> The inventor of the present application previously proposed a vane-type rotary compressor in which a rotating sleeve is interposed between a rotor and a center housing, and the rotating sleeve is supported by compressible fluid such as air (Japanese Patent Laid-Open No. 58-65988)
Did. The compressor uses a rotating sleeve that rotates with the vanes to prevent heat generation and wear caused by the sliding of the vane tips, so it is used in superchargers such as automobile engines that operate at a wide range of rotation speeds from low to high speeds. It can be said that it is the most suitable one. However, due to the high internal pressure on the discharge side, if the rotary sleeve moves toward the high pressure side and comes into direct contact with the center housing, scuffing may occur at the contact point, which may result in poor rotation of the rotary sleeve.
回転スリーブが高圧側に寄つてセンターハウジ
ングに接触する場合、回転スリーブはセンターハ
ウジング内周面の一個所で接触するのではなく、
幅のある領域で接触することが明らかになつた。
その領域をここでは接触領域と呼ぶが、接触領域
はセンターハウジング内周面の高圧側半周に含ま
れ、回転方向に見ると、その始端は高圧側半周の
始端よりも後方にあり、その終端は高圧側半周の
終端よりも前方にある。本願の発明者は、その接
触領域の空気流を増加させて空気軸受室の軸受負
荷力を増大させるため、接触領域の始端に流入口
を設け、その流入口を大気又は吐出室若しく最大
圧の作動室と連通させる提案(特開昭59―155589
号公報)をした。流入口は空気軸受室の軸方向に
おいて内側に寄せた方が軸受負荷力の増大に効果
的であるが、その場合、流入口から流れ込んだ空
気による空気軸受室の軸受負荷力は中央部が高く
両端部が小さいため、回転スリーブが両端部にお
いて不安定な状態になるおそれがあつた。 When the rotating sleeve approaches the high pressure side and contacts the center housing, the rotating sleeve does not make contact at one location on the inner peripheral surface of the center housing;
It has become clear that contact occurs in a wide area.
This area is referred to as the contact area here, and the contact area is included in the high-pressure side half of the inner peripheral surface of the center housing, and when viewed in the rotation direction, its starting end is behind the starting end of the high-pressure side half, and its terminal end is It is located in front of the end of the high pressure side half circumference. In order to increase the air flow in the contact area and increase the bearing load force in the air bearing chamber, the inventor of the present application provided an inlet at the starting end of the contact area, and connected the inlet to the atmosphere or the discharge chamber or the maximum pressure. Proposal to communicate with the working chamber of
Publication No.). It is more effective to increase the bearing load force by placing the inlet inward in the axial direction of the air bearing chamber, but in that case, the bearing load force in the air bearing chamber due to the air flowing from the inlet is higher in the center. Since both ends were small, there was a risk that the rotating sleeve would become unstable at both ends.
<発明の課題>
本発明の課題は空気軸受室へ空気を流入させて
軸受負荷力を増大させても回転スリーブの両端部
が不安定にならない流体支持装置を提供すること
にある。<Problem of the Invention> An object of the present invention is to provide a fluid support device in which both ends of a rotating sleeve do not become unstable even when the bearing load force is increased by causing air to flow into the air bearing chamber.
<課題達成の技術的手段>
本発明の装置は、前記課題を達成するための技
術的手段として、空気軸受室の軸方向の両側の端
部に周方向に延びる案内溝を備え、その案内溝は
吐出室又は吐出室に通気直前の隣合う二枚のベー
ンにより仕切られる作動室に連通する。案内溝は
センターハウジングの内周面又は回転スリーブの
外周面もしくはセンターハウジングの内周面と回
転スリーブの外周面に刻設される。案内溝は流入
した空気を速やか回遊させる。案内溝をセンター
ハウジングの高圧側半周に設けると、流入した空
気は速に高圧側半周を回わり、さらに案内溝から
中央部へ流れるから、回転スリーブの両端部にお
ける空気軸受室の軸受負荷力は均等になる。した
がつて、回転スリーブの両端部は安定するから、
回転スリーブ両端部の不安定による接触は未然に
防止される。<Technical means for achieving the object> As a technical means for achieving the object, the device of the present invention is provided with guide grooves extending in the circumferential direction at both ends of the air bearing chamber in the axial direction. communicates with the discharge chamber or with the working chamber partitioned by two adjacent vanes immediately before ventilation. The guide groove is formed on the inner circumferential surface of the center housing, the outer circumferential surface of the rotating sleeve, or the inner circumferential surface of the center housing and the outer circumferential surface of the rotating sleeve. The guide groove allows the incoming air to circulate quickly. If a guide groove is provided on the high-pressure side half of the center housing, the incoming air will quickly go around the high-pressure side half and then flow from the guide groove to the center, so the bearing load force in the air bearing chamber at both ends of the rotating sleeve will be become even. Therefore, both ends of the rotating sleeve are stable, so
Contact due to instability of both ends of the rotating sleeve is prevented.
回転圧縮機を駆動させるエンジンの回転数が急
激に変化すると、回転スリーブが異常な動きを示
し、センターハウジングの低圧側内周面に接触す
るおそれがある。これを防止するために、センタ
ーハウジングの低圧側内周面にも案内溝を設け、
接触領域を流れた空気を速やかに低圧側に回遊さ
せて空気軸受室の低圧側の軸受負荷力を補強する
ことが望ましい。 If the rotational speed of the engine that drives the rotary compressor suddenly changes, the rotary sleeve may exhibit abnormal movement and come into contact with the low-pressure side inner circumferential surface of the center housing. In order to prevent this, a guide groove is also provided on the inner peripheral surface of the low pressure side of the center housing.
It is desirable to quickly circulate the air flowing through the contact area to the low pressure side to reinforce the bearing load force on the low pressure side of the air bearing chamber.
さらに、全周にわたる案内溝をセンターハウジ
ング内周面又は回転スリーブの外周面若しくはそ
の双方に設け、空気軸受室の軸受負荷力を全周に
わたり補強してもよい。全周にわたる案内溝は部
分的な案内溝よりも加工性がよいという長所もあ
る。 Furthermore, a guide groove extending over the entire circumference may be provided on the inner circumferential surface of the center housing, the outer circumferential surface of the rotating sleeve, or both, thereby reinforcing the bearing load force of the air bearing chamber over the entire circumference. A guide groove covering the entire circumference also has the advantage of being easier to work with than a partial guide groove.
<実施例>
本発明の装置を図面に示す実施例に基づいて説
明する。第1図に示すように、回転圧縮機のロー
タ10は回転軸12に一体に固定され、回転スリ
ーブ30の偏心位置において矢印方向に回転す
る。ロータ10のベーン溝15にベーン16が出
入自在に嵌装され、ベーン16の先端は回転スリ
ーブ30の内周面に接する。回転スリーブ30は
センターハウジング22に回動自在に嵌装され、
両者の間には空気軸受室40が形成される。図は
空気軸受室40の厚さを誇張して示しているが、
実際の厚さは0.1mm以下で非常に薄いものである。<Example> The apparatus of the present invention will be described based on an example shown in the drawings. As shown in FIG. 1, a rotor 10 of the rotary compressor is integrally fixed to a rotating shaft 12, and rotates in the direction of the arrow at an eccentric position of a rotating sleeve 30. A vane 16 is fitted into the vane groove 15 of the rotor 10 so as to be freely removable and removable, and the tip of the vane 16 is in contact with the inner circumferential surface of the rotating sleeve 30. The rotating sleeve 30 is rotatably fitted into the center housing 22,
An air bearing chamber 40 is formed between the two. Although the figure shows the thickness of the air bearing chamber 40 in an exaggerated manner,
The actual thickness is very thin, less than 0.1 mm.
隣合う二枚のベーン16は作動室43を形成
し、その作動室は低圧側から高圧側に回わるにつ
れて圧力が上がり、その圧力は作動室43が吐出
孔42を介して吐出室41と連通する直前に最大
になる。この最大圧力の作動室43か又は吐出室
41に抽気口44を設ける。先に述べたとおり、
センターハウジング22の高圧側半周上の回転ス
リーブ30が接触しようとする領域すなわち接触
領域は高圧側半周の内側にあり、回転方向に見る
と、その始端はセンターハウジング22の高圧側
半周の始端よりは少し後方にあり、その終端は高
圧側半周の終端よりは少し前方にある。センター
ハウジング22の吐出側内周面の軸方向両端部に
おいて、接触領域の始端から終端にかけて周方向
に延びる案内溝74を設ける。案内溝74の始端
に流入口71を設け、その流入口71と抽気口4
4を連結する流入路45を設ける。流入路45は
ハウジングの内部を通るが、見やすくするため、
図は外部を通るように示している。センターハウ
ジング22の内周面には一個以上の空気ため溝7
3が設けられる。 The two adjacent vanes 16 form a working chamber 43, and the pressure in the working chamber increases as it moves from the low-pressure side to the high-pressure side, and the working chamber 43 communicates with the discharge chamber 41 through the discharge hole 42. It reaches its maximum just before. An air bleed port 44 is provided in the working chamber 43 or the discharge chamber 41 having the maximum pressure. As mentioned earlier,
The area on the high-pressure side half circumference of the center housing 22 that the rotating sleeve 30 tries to contact, that is, the contact area, is inside the high-pressure side half circumference, and when viewed in the rotation direction, its starting end is closer to the starting end of the high-pressure side half circumference of the center housing 22. It is located a little behind, and its end is a little forward of the end of the high-pressure side half circumference. At both axial ends of the discharge side inner peripheral surface of the center housing 22, guide grooves 74 are provided that extend in the circumferential direction from the starting end to the terminal end of the contact area. An inlet 71 is provided at the starting end of the guide groove 74, and the inlet 71 and the air extraction port 4
An inflow path 45 is provided to connect the two. The inlet passage 45 passes through the inside of the housing, but for easy visibility,
The figure shows it as passing through the outside. One or more air grooves 7 are provided on the inner peripheral surface of the center housing 22.
3 is provided.
接触領域の流入口からベーン16が吐出孔42
にかかる直前の位置すなわち空気軸受室が最大圧
を受ける位置までの空気量は多いので、案内溝に
よる効果はそれ程必要ではない。そこで、第2図
に示すように、空気軸受室40が最大圧を受ける
位置Pからセンターハウジング22の接触領域終
端にかけて案内溝74を設けてもよい。案内溝7
4の始端に設けた流入口71と吐出室41に設け
た抽気口44を流入口45で連結する。第3図に
示すように、ロータ10は回転軸12はフロント
及びリヤサイドハウジング21,23のベアリン
グ18,19に軸受けされ、フロント側の軸端に
はエンジンの回転駆動を受けるプーリ14が取付
けられる。リヤサイドハウジング23の背面にリ
ヤカバー24がガスケツトを介して固定され、そ
のリヤカバーに吐出室41と吸入室51が設けら
れる。吐出室41は流入路45を介してセンター
ハウジング22の高圧側内周面に開口する流入口
71と連通する。空気ため溝73はセンターハウ
ジング22の低圧側内周面に設けられる。 The vane 16 is connected to the discharge hole 42 from the inlet of the contact area.
Since there is a large amount of air up to the position just before the air bearing chamber receives the maximum pressure, the effect of the guide groove is not so necessary. Therefore, as shown in FIG. 2, a guide groove 74 may be provided from the position P where the air bearing chamber 40 receives the maximum pressure to the end of the contact area of the center housing 22. Guide groove 7
An inlet 71 provided at the starting end of the discharge chamber 4 and a bleed port 44 provided in the discharge chamber 41 are connected by an inlet 45 . As shown in FIG. 3, the rotor 10 has a rotating shaft 12 supported by bearings 18 and 19 of front and rear side housings 21 and 23, and a pulley 14 that receives the rotational drive of the engine is attached to the front end of the shaft. A rear cover 24 is fixed to the back surface of the rear side housing 23 via a gasket, and a discharge chamber 41 and a suction chamber 51 are provided in the rear cover. The discharge chamber 41 communicates with an inlet 71 that opens on the high-pressure side inner circumferential surface of the center housing 22 via an inflow path 45 . The air reservoir groove 73 is provided on the inner circumferential surface of the center housing 22 on the low pressure side.
案内溝74は、第4図に示すように、センター
ハウジング22の両端を切除して形成されるか、
又は、第5図に示すように、センターハウジング
22の両端部より少し内側にずれた位置に刻設さ
れる。 The guide groove 74 may be formed by cutting both ends of the center housing 22, as shown in FIG.
Alternatively, as shown in FIG. 5, it is carved at a position slightly shifted inward from both ends of the center housing 22.
第1図ないし第5図の回転圧縮機を回転させる
と、接触領域の案内溝74の流入口71から高圧
の空気が流入する。流入した空気は案内溝74を
通り速やかに接触領域を回わり、さらに案内溝7
4から中央へと流れ込むから、空気軸受室40の
接触領域の軸受負荷力は高まると共に軸方向に均
等になる。その結果、回転スリーブ30は左右の
バランスよく流体的に支持されるから、回転スリ
ーブ30が内部の高圧のために接触領域側へ押圧
されてもセンターハウジング22の内周面と接触
するまでには至らない。 When the rotary compressor shown in FIGS. 1 to 5 is rotated, high-pressure air flows in from the inlet 71 of the guide groove 74 in the contact area. The inflowing air passes through the guide groove 74, quickly goes around the contact area, and then continues through the guide groove 7.
4 to the center, the bearing load force in the contact area of the air bearing chamber 40 increases and becomes uniform in the axial direction. As a result, the rotary sleeve 30 is fluidly supported in a well-balanced left and right direction, so even if the rotary sleeve 30 is pushed toward the contact area due to internal high pressure, the rotary sleeve 30 does not come into contact with the inner circumferential surface of the center housing 22. Not enough.
第6図に示すように、センターハウジング22
の低圧側すなわち接触領域の反対側に案内溝74
を設け、流入路45を介して案内溝74の始端に
設けた流入口71と吐出室41に設けた抽気口4
4を連結すると、ロータ10を回転させるエンジ
ンの回転数が急に変動して回転スリーブ30が異
常な動きをしても、接触領域を流れた高圧の空気
は速やかに低圧側の空気軸受室40の軸受負荷力
を高めると共に、回転スリーブ30の左右をバラ
ンスよく支持するから、回転スリーブ30のセン
ターハウジング22の低圧側内周面に対する接触
を十分に防止することができる。 As shown in FIG. 6, the center housing 22
A guide groove 74 is provided on the low pressure side of the
An inlet 71 provided at the starting end of the guide groove 74 via an inflow path 45 and an air bleed port 4 provided in the discharge chamber 41.
4, even if the rotational speed of the engine that rotates the rotor 10 suddenly fluctuates and the rotating sleeve 30 moves abnormally, the high-pressure air flowing through the contact area is immediately transferred to the air bearing chamber 40 on the low-pressure side. Since the bearing load force is increased and the right and left sides of the rotating sleeve 30 are supported in a well-balanced manner, it is possible to sufficiently prevent the rotating sleeve 30 from coming into contact with the low-pressure side inner circumferential surface of the center housing 22.
第7図に示すように、案内溝74をセンターハ
ウジング22の全周に刻み、最大圧の作動室43
の抽気口44から流入路45を介して案内溝74
の接触領域始端付近の流入口71に高圧空気を流
入させると、空気軸受室40の軸受負荷力は第1
図ないし第3図に示す実施例と同様に、回転スリ
ーブ30のセンターハウジング吐出側内周面に対
する接触を防止すると共に、第6図の実施例と同
様に回転スリーブ30のセンターハウジング吸入
側内周面に対する接触も防止するという二重の効
果を発揮する。この場合、案内溝74は、第8図
に示すように、回転スリーブ30の両端部又はそ
の近傍に設けてもよく、又、第9図に示すよう
に、センターハウジング22と回転スリーブ30
の両方に案内溝74を設けてもよい。 As shown in FIG. 7, a guide groove 74 is carved around the entire circumference of the center housing 22, and a working chamber 43 with maximum pressure is
from the air bleed port 44 to the guide groove 74 via the inlet passage 45.
When high-pressure air flows into the inlet 71 near the starting end of the contact area, the bearing load force in the air bearing chamber 40 becomes the first
Similarly to the embodiment shown in FIGS. 3 to 3, contact between the rotary sleeve 30 and the inner circumferential surface of the center housing on the discharge side is prevented, and similarly to the embodiment of FIG. It has the dual effect of preventing contact with surfaces. In this case, the guide grooves 74 may be provided at or near both ends of the rotating sleeve 30, as shown in FIG. 8, or between the center housing 22 and the rotating sleeve 30, as shown in FIG.
The guide groove 74 may be provided in both.
第1図及び第3図の空気ため溝73は空気軸受
室40の軸受負荷力を高める効果を持つが、その
形状は左右対称にセンターハウジング22の軸方
向に延びるものであればどのようなものでもよ
く、例えば、第10図に示す左右に二分された細
長い矩形の溝73でも、第11図に示す単一の細
長い矩形の溝73でも、第12図に示すヘリング
ボーン状の溝73でも、第13図に示す細長い筋
溝73の集合でもよい。さらに、空気軸受室の軸
受負荷力を増加させるために、センターハウジン
グ内周面の一部、例えば接触領域とその反対側、
又は前周にヘリングボーン状の気体集積溝を設け
てもよい。 The air reservoir groove 73 shown in FIGS. 1 and 3 has the effect of increasing the bearing load force of the air bearing chamber 40, but its shape may be any shape as long as it extends symmetrically in the axial direction of the center housing 22. For example, it may be an elongated rectangular groove 73 divided into left and right halves as shown in FIG. 10, a single elongated rectangular groove 73 shown in FIG. 11, or a herringbone-shaped groove 73 shown in FIG. It may be a collection of elongated grooves 73 shown in FIG. 13. Furthermore, in order to increase the bearing load force of the air bearing chamber, a part of the inner peripheral surface of the center housing, for example the contact area and the opposite side thereof,
Alternatively, a herringbone-shaped gas accumulation groove may be provided on the front periphery.
<発明の効果>
本発明の装置は空気軸受室の軸方向両側の端部
に案内溝を備え、その案内溝に高圧の空気が流れ
込むので、空気軸受室の軸受負荷力が増大すると
共に、軸方向の軸受負荷力が均等になり、回転ス
リーブを左右バランスよく支持することができ
る。したがつて、従来の案内溝を欠いた装置と異
なり、本発明の装置においては、回転スリーブの
左右のバランスが失調してセンターハウジングの
内周面に接触する事故は未然に防止されるから、
回転スリーブとセンターハウジングが接触してス
カツフイングを生じたり、回転スリーブの回転が
不良になる事故は従来よりも減少する。<Effects of the Invention> The device of the present invention is provided with guide grooves at both ends of the air bearing chamber in the axial direction, and high pressure air flows into the guide grooves, so that the bearing load force in the air bearing chamber increases and the shaft The bearing load force in the directions becomes even, and the rotating sleeve can be supported in a well-balanced manner on the left and right sides. Therefore, unlike conventional devices lacking guide grooves, the device of the present invention prevents the rotary sleeve from becoming unbalanced left and right and coming into contact with the inner circumferential surface of the center housing.
Accidents such as contact between the rotating sleeve and the center housing, causing scuffing, or malfunctioning rotation of the rotating sleeve, are less likely than in the past.
第1図は本発明の一実施例の装置を備えた回転
圧縮機のリヤサドハウジングを外した端面を示す
図、第2図は他の実施例の第1図に相当する図、
第3図は第2図の―線に沿う断面を少し縮小
して示す図、第4図は第1図の―線に沿う断
面図、第5図は別の実施例の第4図に相当する
図、第6図及び第7図はそれぞれ別の実施例の第
1図に相当する図、第8図及び第9図はそれぞれ
別の実施例の第4図に相当する図、第10図ない
し第13図は空気ため溝の各実施例の展開図であ
る。
10:ロータ、16:ベーン、22:センター
ハウジング、30:回転スリーブ、40:空気軸
受室、41:吐出室、43:作動室、45:流入
路、71:流入口、74:案内溝。
FIG. 1 is a view showing an end face of a rotary compressor equipped with a device according to one embodiment of the present invention with the rear side housing removed; FIG. 2 is a view corresponding to FIG. 1 of another embodiment;
Fig. 3 is a slightly reduced cross-sectional view taken along line - in Fig. 2, Fig. 4 is a sectional view taken along line - in Fig. 1, and Fig. 5 corresponds to Fig. 4 of another embodiment. Figures 6 and 7 correspond to Figure 1 of another embodiment, Figures 8 and 9 correspond to Figure 4 of another embodiment, and Figure 10. 1 to 13 are developed views of each embodiment of the air reservoir groove. 10: Rotor, 16: Vane, 22: Center housing, 30: Rotating sleeve, 40: Air bearing chamber, 41: Discharge chamber, 43: Working chamber, 45: Inflow passage, 71: Inflow port, 74: Guide groove.
Claims (1)
回転スリーブと、前記回転スリーブの偏心位置に
おいて回転するロータと、前記ロータに出入自在
に嵌装されたベーンとを備えた回転圧縮機におい
て、前記センターハウジングと前記回転スリーブ
の間に形成された薄層の空気軸受室からなる流体
支持装置であつて、前記センターハウジングの内
周面に吐出室又は前記吐出室に通気直前の隣合う
二枚の前記ベーンにより仕切られた作動室と連通
する流入口が設けられ、前記空気軸受室の軸方向
の両側の端部に周方向に延びる案内溝が設けら
れ、前記案内溝は前記吐出室又は前記吐出室に通
気直前の隣合う二枚のベーンにより仕切られた前
記作動室に連通することを特徴とする回転圧縮機
の回転スリーブの流体支持装置。 2 案内溝はセンターハウジングの内周面に刻設
されたことを特徴とする特許請求の範囲第1項に
記載の回転スリーブの流体支持装置。 3 案内溝は回転スリーブの外周面に刻設された
ことを特徴とする特許請求の範囲第1項に記載の
回転スリーブの流体支持装置。 4 案内溝はセンターハウジングの内周面と回転
スリーブの外周面に刻設されたことを特徴とする
特許請求の範囲第1項に記載の回転スリーブの流
体支持装置。[Scope of Claims] 1. A rotary compression device comprising: a rotary sleeve rotatably fitted to a center housing; a rotor rotating at an eccentric position of the rotary sleeve; and a vane fitted into the rotor so as to be removable. A fluid support device comprising a thin air bearing chamber formed between the center housing and the rotating sleeve, the fluid support device comprising a thin air bearing chamber formed between the center housing and the rotary sleeve, the fluid support device having a discharge chamber on the inner circumferential surface of the center housing or a fluid bearing chamber adjacent to the discharge chamber immediately before ventilation. An inlet is provided that communicates with the working chamber partitioned by the two matching vanes, and guide grooves extending in the circumferential direction are provided at both ends of the air bearing chamber in the axial direction, and the guide grooves are connected to the discharge outlet. A fluid support device for a rotary sleeve of a rotary compressor, characterized in that the chamber or the discharge chamber communicates with the working chamber partitioned by two adjacent vanes immediately before ventilation. 2. The fluid support device for a rotating sleeve according to claim 1, wherein the guide groove is carved on the inner circumferential surface of the center housing. 3. The fluid support device for a rotary sleeve according to claim 1, wherein the guide groove is carved on the outer peripheral surface of the rotary sleeve. 4. The fluid support device for a rotary sleeve according to claim 1, wherein the guide groove is formed on the inner circumferential surface of the center housing and the outer circumferential surface of the rotary sleeve.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8773483A JPS59213980A (en) | 1983-05-20 | 1983-05-20 | Device for fluidly supporting rotary sleeve in rotary compressor |
DE19843490264 DE3490264T (en) | 1983-05-20 | 1984-05-19 | Device for carrying a rotary sleeve of a rotary compressor by means of fluid |
PCT/JP1984/000254 WO1984004783A1 (en) | 1983-05-20 | 1984-05-19 | Apparatus for supporting rotational sleeve of rotary compressor by fluid |
GB08500164A GB2154663B (en) | 1983-05-20 | 1984-05-19 | Apparatus for supporting rotational sleeve of rotary compressor by fluid |
DE3490264A DE3490264C2 (en) | 1983-05-20 | 1984-05-19 | |
US06/691,482 US4595348A (en) | 1983-05-20 | 1984-05-19 | Apparatus for supporting rotary sleeve of rotary compressor by fluid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8773483A JPS59213980A (en) | 1983-05-20 | 1983-05-20 | Device for fluidly supporting rotary sleeve in rotary compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59213980A JPS59213980A (en) | 1984-12-03 |
JPS647229B2 true JPS647229B2 (en) | 1989-02-08 |
Family
ID=13923148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8773483A Granted JPS59213980A (en) | 1983-05-20 | 1983-05-20 | Device for fluidly supporting rotary sleeve in rotary compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59213980A (en) |
-
1983
- 1983-05-20 JP JP8773483A patent/JPS59213980A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59213980A (en) | 1984-12-03 |
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