JPH09158871A - Hydraulic driven compressor - Google Patents
Hydraulic driven compressorInfo
- Publication number
- JPH09158871A JPH09158871A JP32435695A JP32435695A JPH09158871A JP H09158871 A JPH09158871 A JP H09158871A JP 32435695 A JP32435695 A JP 32435695A JP 32435695 A JP32435695 A JP 32435695A JP H09158871 A JPH09158871 A JP H09158871A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- hydraulic motor
- scroll
- hydraulic
- common shaft
- 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.)
- Withdrawn
Links
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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/02—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C2/025—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents the moving and the stationary member having co-operating elements in spiral form
-
- 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は油圧モータにより冷
媒用圧縮機を直結駆動する油圧駆動圧縮機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic drive compressor in which a refrigerant compressor is directly driven by a hydraulic motor.
【０００２】[0002]
【発明が解決しようとする課題】空気調和機用圧縮機の
駆動源としては、通常、エンジンと電動モータとが用い
られている。バス用、乗用車用、陸上レフユニット等の
車両に搭載される空気調和機においては、エンジンを駆
動源としており、軸継手を介してエンジンと直結駆動、
あるいはベルト及びクラッチを介したベルト駆動とされ
ている。An engine and an electric motor are usually used as a drive source of a compressor for an air conditioner. In air conditioners mounted on vehicles such as buses, passenger cars, and land reflex units, the engine is used as the drive source, and the engine is directly connected via a shaft coupling.
Alternatively, the belt is driven via a belt and a clutch.
【０００３】尚、上記エンジン駆動の空気調和機のう
ち、大部分が推進用エンジン即ちメインエンジン駆動で
あるが、バス用、陸上レフユニット用等の大型車両にお
いてはその一部が別個に設けた専用のサブエンジンにて
駆動している。Most of the engine-driven air conditioners are driven by a propulsion engine, that is, a main engine, but in large vehicles such as buses and land reflex units, some of them are provided separately. It is driven by a dedicated sub engine.
【０００４】然るに、乗用車用空気調和機のように、圧
縮機をメインエンジンで駆動する方式の空気調和機にお
いては、エンジン回転数と圧縮機回転数とが同一あるい
は一定回転比となっている一方、圧縮機の回転数は空気
調和機の負荷とは対応していない。However, in an air conditioner in which a compressor is driven by a main engine, such as a passenger car air conditioner, the engine speed and the compressor speed are either the same or constant. The compressor speed does not correspond to the load of the air conditioner.
【０００５】このため、かかるメインエンジン駆動の空
気調和機にあっては、空気調和機の負荷が小さいときで
も、エンジン回転数が高くなると、圧縮機の回転数も高
くなり、これによって圧縮機の運転圧力が変わり、余分
な動力を必要としたり、あるいは圧縮機の吐出温度が上
昇する。また、エンジン回転数が低いアイドル運転時に
は、空気調和機の負荷が加わっていても、圧縮機の回転
数が低いため、空気調和機全体が能力不足となる。等の
問題点を抱えている。For this reason, in such an air conditioner driven by a main engine, even when the load on the air conditioner is small, when the engine rotational speed increases, the rotational speed of the compressor also increases. The operating pressure changes, and extra power is required, or the discharge temperature of the compressor rises. Further, at the time of idle operation where the engine speed is low, even if the load of the air conditioner is applied, the speed of the compressor is low, and therefore the capacity of the air conditioner as a whole becomes insufficient. There are problems such as.
【０００６】上記のようなメインエンジン駆動の圧縮機
特有の問題点を解決する技術として、メインエンジンで
油圧ポンプを駆動し、これにより発生する油圧で作動す
る油圧モータにより圧縮機を駆動することにより、圧縮
機をメインエンジンの回転数変動に直接影響されないよ
うにした油圧駆動圧縮機が提案されている。As a technique for solving the above problems peculiar to a compressor driven by a main engine, a hydraulic pump is driven by a main engine and a compressor is driven by a hydraulic motor operated by the hydraulic pressure generated by the hydraulic pump. A hydraulically driven compressor has been proposed in which the compressor is not directly affected by fluctuations in the rotational speed of the main engine.
【０００７】しかしながら、かかる油圧駆動圧縮機を備
えた空気調和機にあっては、油圧ポンプ、油圧モータ等
の油圧機器と圧縮機とを組合せて使用するため、圧縮機
駆動系の設置スペースが増加してコスト高となる。However, in an air conditioner equipped with such a hydraulically driven compressor, hydraulic equipment such as a hydraulic pump and hydraulic motor is used in combination with a compressor, so that the installation space for the compressor drive system increases. And the cost becomes high.
【０００８】また、殊に圧縮機がスクロール形ロータを
使用したスクロール式圧縮機である場合は、スラスト荷
重が大きくなることから、油圧モータ等の油圧システム
と組合せることにより、上記スラスト荷重を低減するこ
とが要求されている。Further, particularly when the compressor is a scroll type compressor using a scroll type rotor, the thrust load becomes large. Therefore, by combining with a hydraulic system such as a hydraulic motor, the thrust load can be reduced. Required to do so.
【０００９】本発明の目的は、油圧モータにより圧縮機
を駆動する方式の油圧駆動圧縮機において、同圧縮機及
び油圧モータ等の油圧システムの設置スペースを小さく
することにより、コンパクトで低コストの油圧駆動圧縮
機であって、スラスト荷重が大幅に軽減され、耐久性が
向上せしめられた油圧駆動圧縮機を提供することにあ
る。An object of the present invention is to provide a hydraulic drive compressor of a type in which a hydraulic motor drives a compressor, and by reducing the installation space of the hydraulic system such as the compressor and the hydraulic motor, a compact and low-cost hydraulic It is an object of the present invention to provide a hydraulic compressor that has a significantly reduced thrust load and improved durability.
【００１０】[0010]
【課題を解決するための手段】本発明は上記問題点を解
決するもので、その要旨とする手段は、共通軸に取付け
られた油圧モータと冷媒圧縮機とを、双方のスラスト荷
重が互いに打ち消し合うようにハウジング内に一体に組
み込んで構成されたことを特徴とする油圧駆動圧縮機に
ある。Means for Solving the Problems The present invention solves the above problems, and the gist of the invention is to eliminate the thrust loads of a hydraulic motor and a refrigerant compressor mounted on a common shaft from each other. A hydraulically driven compressor is characterized in that it is integrally incorporated into the housing so as to fit.
【００１１】上記手段によれば、共通軸に油圧モータと
冷媒圧縮機とを取付けて一体化し、これをハウジンク内
に組み込むことにより、ハウジング内に油圧モータと圧
縮機とがコンパクトに収納されることとなり、装置の設
置スペースが最小で済み、かつ連結手段、配管も簡単か
つ容易化され、製造コストの低減が実現される。According to the above means, the hydraulic motor and the refrigerant compressor are attached to the common shaft so as to be integrated with each other, and they are incorporated into the housing, so that the hydraulic motor and the compressor can be compactly housed in the housing. As a result, the installation space for the device is minimized, the connecting means and the piping are simple and easy, and the manufacturing cost is reduced.
【００１２】また、上記油圧モータに生ずるスラスト荷
重と冷媒圧縮機のスラスト荷重とが、共通軸に沿って互
いに反対方向に作用することによって、双方が打ち消し
合うこととなり、殊に上記両スラストが等しい場合は装
置のスラスト荷重はゼロとなり、装置の大幅な耐久性の
向上が得られる。Further, the thrust load generated in the hydraulic motor and the thrust load of the refrigerant compressor act in opposite directions along the common axis, so that they cancel each other out, and in particular, both thrusts are equal. In this case, the thrust load of the device becomes zero, and the durability of the device is greatly improved.
【００１３】また上記油圧駆動圧縮機において、上記冷
媒圧縮機が、スクロール形ロータを有するスクロール式
圧縮機よりなること、並びに上記油圧モータがスクロー
ル形ロータを有するスクロール式油圧モータよりなるこ
とも本発明の具体的手段である。In the hydraulically driven compressor, the refrigerant compressor may be a scroll type compressor having a scroll rotor, and the hydraulic motor may be a scroll hydraulic motor having a scroll rotor. Is a specific means of.
【００１４】かかる手段によれば、油圧モータのスクロ
ール部と圧縮機のスクロール部とを、共通軸の軸方向に
互いに逆向きに設けることによって、きわめて容易にか
つ確実にスラスト荷重を打ち消すことができ、スラスト
軸受の摩擦損失が減少するとともに、スラスト荷重の大
幅な減少により、装置の耐久性が向上する。According to such means, the thrust load can be canceled very easily and surely by providing the scroll portion of the hydraulic motor and the scroll portion of the compressor in mutually opposite directions in the axial direction of the common shaft. The friction loss of the thrust bearing is reduced, and the durability of the device is improved because the thrust load is greatly reduced.
【００１５】[0015]
【発明の実施の形態】以下図面を参照して本発明の実施
形態を詳細に説明する。図１には本発明の実施形態に係
るスクロール形ロータを備えた空気調和機用油圧駆動冷
媒圧縮機の構造図が示されている。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a structural diagram of a hydraulically driven refrigerant compressor for an air conditioner including a scroll rotor according to an embodiment of the present invention.
【００１６】図１において、１は冷媒を圧縮してコンデ
ンサ（図示せず）に送るスクロール式の圧縮機、１ａは
同圧縮機の固定スクロール、１ｂは回転スクロールであ
る。２は油圧ポンプ（図示せず）から圧送される油圧に
より回転駆動されるスクロール式の油圧モータ、２ａは
同油圧モータの固定スクロール、２ｂは回転スクロール
である。In FIG. 1, 1 is a scroll type compressor which compresses a refrigerant and sends it to a condenser (not shown), 1a is a fixed scroll of the same compressor, and 1b is a rotary scroll. Reference numeral 2 denotes a scroll type hydraulic motor which is rotationally driven by hydraulic pressure fed from a hydraulic pump (not shown), 2a a fixed scroll of the hydraulic motor, and 2b a rotary scroll.
【００１７】３は共通軸であり、同共通軸３の一端には
上記圧縮機１の回転スクロール１ｂが取付けられ、他端
には上記油圧モータ２の回転スクロール２ｂが取付けら
れている。上記のように、圧縮機１と油圧モータ２とは
共通軸３の両端に取付けられて一体化され、ハウジング
９に軸支される。A common shaft 3 has a rotary scroll 1b of the compressor 1 attached to one end and a rotary scroll 2b of the hydraulic motor 2 attached to the other end. As described above, the compressor 1 and the hydraulic motor 2 are attached to both ends of the common shaft 3 so as to be integrated with each other, and are pivotally supported by the housing 9.
【００１８】スクロール式ロータにおいては、周知のよ
うに共通軸３は旋回運動を行うので、これによる遠心力
をバランスさせるため、中央部にバランスウエイト付き
カラー６を設ける。９１は油圧モータ側の油入口、９２
は油出口、９３は冷媒入口、９４は冷媒出口、４は圧縮
機１側の冷媒シール用のメカニカルシール、５は油圧モ
ータ２側のオイルシールである。In the scroll type rotor, as is well known, since the common shaft 3 makes a turning motion, a collar 6 with a balance weight is provided in the central portion in order to balance the centrifugal force due to this. 91 is an oil inlet on the hydraulic motor side, and 92
Is an oil outlet, 93 is a refrigerant inlet, 94 is a refrigerant outlet, 4 is a mechanical seal for sealing the refrigerant on the compressor 1 side, and 5 is an oil seal on the hydraulic motor 2 side.
【００１９】７は圧縮機１用のスラスト軸受、８は油圧
モータ２用のスラスト軸受であり、両スラスト軸受７，
８は、共通軸３に加わる互いに反対方向のスラスト荷重
を受けるように設けられている。Reference numeral 7 is a thrust bearing for the compressor 1, 8 is a thrust bearing for the hydraulic motor 2, and both thrust bearings 7,
8 are provided so as to receive thrust loads applied to the common shaft 3 in mutually opposite directions.
【００２０】上記のように構成された油圧駆動冷媒圧縮
機の運転時において、油圧ポンプ（図示せず）から圧送
された圧油は油入口９１からスクロール式の油圧モータ
２に入り、固定スクロール２ａと噛み合う回転スクロー
ル２ｂを旋回せしめ、その後油出口９２から油タンク
（図示せず）に排出される。During operation of the hydraulically driven refrigerant compressor configured as described above, the pressure oil pumped from the hydraulic pump (not shown) enters the scroll type hydraulic motor 2 through the oil inlet 91 and the fixed scroll 2a. The rotary scroll 2b meshing with is swung and then discharged from an oil outlet 92 to an oil tank (not shown).
【００２１】上記油圧モータ２における回転スクロール
２ｂの旋回により、共通軸３が旋回せしめられる。さら
に同共通軸３の旋回により、共通軸３の他端に取付けら
れた圧縮機１の回転スクロール１ｂが旋回せしめられ、
これと固定スクロール１ａとの間の容積変化により、冷
媒入口９３から導入された冷媒が加圧されて、冷媒出口
９４からコンデンサ（図示せず）に送出される。When the rotary scroll 2b of the hydraulic motor 2 turns, the common shaft 3 turns. Further, as the common shaft 3 revolves, the rotary scroll 1b of the compressor 1 attached to the other end of the common shaft 3 revolves.
Due to the volume change between this and the fixed scroll 1a, the refrigerant introduced from the refrigerant inlet 93 is pressurized and sent from the refrigerant outlet 94 to a condenser (not shown).
【００２２】上記運転時において、油圧モータ２には、
作動油圧によるスラスト荷重Ｆ1 が図１の方向即ち圧縮
機１の方向に作用する。一方、圧縮機１には、冷媒の圧
縮圧力によるスラスト荷重Ｆ2 が、上記油圧によるスラ
スト荷重Ｆ1 とは逆方向である油圧モータ２側へと作用
する。During the above operation, the hydraulic motor 2 is
The thrust load F 1 due to the hydraulic pressure acts in the direction of FIG. 1, that is, in the direction of the compressor 1. On the other hand, in the compressor 1, the thrust load F 2 due to the compression pressure of the refrigerant acts on the hydraulic motor 2 side which is in the opposite direction to the thrust load F 1 due to the hydraulic pressure.
【００２３】従って、共通軸３には上記のような逆方向
のスラスト荷重Ｆ1 とＦ2 との差が作用することとな
り、この差をスラスト荷重７あるいは８が受圧する。従
って、上記スラスト軸受７あるいは８に加わるスラスト
荷重は極めて小さくなり、上記双方のスラスト荷重Ｆ1
とＦ2 とを等しく設計すれば、スラスト軸受７あるいは
８に掛るスラスト荷重はゼロとなる。Therefore, the difference between the thrust loads F 1 and F 2 in the opposite directions acts on the common shaft 3, and the thrust load 7 or 8 receives this difference. Therefore, the thrust load applied to the thrust bearing 7 or 8 becomes extremely small, and the thrust loads F 1 of both of the above.
And F 2 are designed to be equal, the thrust load applied to the thrust bearing 7 or 8 becomes zero.
【００２４】上記実施形態は、圧縮機１及び油圧モータ
２がスクロール式のものであるが、双方又は何れか一方
が斜板式、斜軸式等、他の方式による回転式圧縮機、あ
るいは油圧モータであってもよい。In the above embodiment, the compressor 1 and the hydraulic motor 2 are scroll type, but both or one of them is a swash plate type, a swash shaft type or other type rotary compressor or hydraulic motor. May be
【００２５】[0025]
【発明の効果】本発明は以上のように構成されており、
本発明によれば、ハウジング内に油圧モータと圧縮機と
がコンパクトに収納されることとなって、装置の設置ス
ペースが最小で済み、連結あるいは配管も簡単かつ容易
化され、低コストの油圧駆動式圧縮機が得られる。The present invention is configured as described above.
According to the present invention, since the hydraulic motor and the compressor are compactly housed in the housing, the installation space of the device can be minimized, the connection or the piping can be easily and easily performed, and the hydraulic drive can be manufactured at low cost. A compressor is obtained.
【００２６】また、圧縮機及び油圧モータから共通軸に
作用するスラスト荷重が互いに打ち消し合うので、スラ
スト軸受へのスラスト荷重が大幅に減少し、軸受寿命が
延長され、装置の耐久性が向上する。Further, since the thrust loads acting on the common shaft from the compressor and the hydraulic motor cancel each other out, the thrust load on the thrust bearing is greatly reduced, the bearing life is extended, and the durability of the device is improved.
【００２７】さらに請求項２あるいは３のように圧縮機
及び油圧モータをスクロール式とすれば、スラスト荷重
の打ち消しのための設計を容易にでき、スラスト荷重を
実質的にゼロとすることも可能となる。Further, if the compressor and the hydraulic motor are scroll type as in claim 2 or 3, the design for canceling the thrust load can be facilitated and the thrust load can be made substantially zero. Become.
【図１】本発明の実施形態に係る空気調和機用油圧駆動
圧縮機の構造図（概略断面図）FIG. 1 is a structural diagram (schematic cross-sectional view) of a hydraulically driven compressor for an air conditioner according to an embodiment of the present invention.
１ 圧縮機 ２ 油圧モータ ３ 共通軸 ７，８ スラスト軸受 ９ ハウジング Ｆ1 ，Ｆ2 スラスト荷重1 Compressor 2 Hydraulic motor 3 Common shaft 7,8 Thrust bearing 9 Housing F 1 , F 2 Thrust load
Claims (3)
縮機とを、双方のスラスト荷重が互いに打ち消し合うよ
うにハウジング内に一体に組み込んで構成されたことを
特徴とする油圧駆動圧縮機。1. A hydraulically driven compressor, wherein a hydraulic motor and a refrigerant compressor, which are fixed to a common shaft, are integrally incorporated in a housing so that thrust loads of both of them cancel each other out.
を有するスクロール式圧縮機よりなる請求項１記載の油
圧駆動圧縮機。2. The hydraulically driven compressor according to claim 1, wherein the refrigerant compressor is a scroll compressor having a scroll rotor.
有するスクロール式油圧モータよりなる請求項１又は２
の何れかに記載の油圧駆動圧縮機。3. The scroll hydraulic motor having a scroll rotor as the hydraulic motor according to claim 1 or 2.
The hydraulic drive compressor according to any one of 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32435695A JPH09158871A (en) | 1995-12-13 | 1995-12-13 | Hydraulic driven compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32435695A JPH09158871A (en) | 1995-12-13 | 1995-12-13 | Hydraulic driven compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09158871A true JPH09158871A (en) | 1997-06-17 |
Family
ID=18164876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32435695A Withdrawn JPH09158871A (en) | 1995-12-13 | 1995-12-13 | Hydraulic driven compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09158871A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6658392B2 (en) | 1997-09-05 | 2003-12-02 | Denso Corporation | Automatic toll collection system for automotive vehicle |
| DE102004060417A1 (en) * | 2004-12-14 | 2006-07-06 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Compact screw compressor for mobile use in a vehicle |
| CN108612655A (en) * | 2018-03-20 | 2018-10-02 | 广州万宝集团压缩机有限公司 | A kind of screw compressor with cooling installing zone |
| CN111637056A (en) * | 2020-06-01 | 2020-09-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Vortex rotary compressor, control method thereof and air conditioner |
-
1995
- 1995-12-13 JP JP32435695A patent/JPH09158871A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6658392B2 (en) | 1997-09-05 | 2003-12-02 | Denso Corporation | Automatic toll collection system for automotive vehicle |
| DE102004060417A1 (en) * | 2004-12-14 | 2006-07-06 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Compact screw compressor for mobile use in a vehicle |
| DE102004060417B4 (en) * | 2004-12-14 | 2006-10-26 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Compact screw compressor for mobile use in a vehicle |
| CN108612655A (en) * | 2018-03-20 | 2018-10-02 | 广州万宝集团压缩机有限公司 | A kind of screw compressor with cooling installing zone |
| CN111637056A (en) * | 2020-06-01 | 2020-09-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Vortex rotary compressor, control method thereof and air conditioner |
| CN111637056B (en) * | 2020-06-01 | 2024-03-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Vortex rotary compressor, control method thereof and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030304 |