JP3094732B2 - Reciprocating compressor - Google Patents
Reciprocating compressorInfo
- Publication number
- JP3094732B2 JP3094732B2 JP05103902A JP10390293A JP3094732B2 JP 3094732 B2 JP3094732 B2 JP 3094732B2 JP 05103902 A JP05103902 A JP 05103902A JP 10390293 A JP10390293 A JP 10390293A JP 3094732 B2 JP3094732 B2 JP 3094732B2
- Authority
- JP
- Japan
- Prior art keywords
- suction
- hole
- chamber
- compressor
- suction chamber
- 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 - Lifetime
Links
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車両空調用に供して好
適な圧縮機に係り、主として単頭形のピストンを内装し
た多気筒往復動型圧縮機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compressor suitable for use in vehicle air conditioning and, more particularly, to a multi-cylinder reciprocating compressor having a single-headed piston.
【０００２】[0002]
【従来の技術】従来この主の圧縮機として、固定斜板を
備えた定容量型圧縮機や傾角変位可能な回転斜板を備え
た可変容量型圧縮機が知られている。これらの圧縮機
は、図４及び図５に例示するように、複数のボア２を並
設したシリンダブロック１と、各ボア２に対応した吸入
口３及び吐出口４を有する弁板５と、同弁板５を挟んで
シリンダブロック１の外端を閉塞するシリンダヘッド６
とを備えており、各ボア２に挿嵌されたピストン７が所
定の位相差をもって往復動するように構成されている。
そしてシリンダヘッド６の内部には、中央域に吐出室
８、同外周域には吸入室９が画設されており、吐出室８
は吐出フランジ１０の吐出孔１１に連通され、吸入室９
は吸入フランジ１２の吸入孔１３と連通されている。2. Description of the Related Art Conventionally, as a main compressor, a constant displacement compressor having a fixed swash plate and a variable displacement compressor having a rotary swash plate capable of tilting displacement are known. As illustrated in FIGS. 4 and 5, these compressors include a cylinder block 1 having a plurality of bores 2 arranged side by side, a valve plate 5 having a suction port 3 and a discharge port 4 corresponding to each bore 2, Cylinder head 6 for closing the outer end of cylinder block 1 with valve plate 5 interposed
The piston 7 inserted into each of the bores 2 is configured to reciprocate with a predetermined phase difference.
Inside the cylinder head 6, a discharge chamber 8 is defined in a central area, and a suction chamber 9 is defined in the outer peripheral area.
Is communicated with the discharge hole 11 of the discharge flange 10 and the suction chamber 9
Is communicated with the suction hole 13 of the suction flange 12.
【０００３】したがって、圧縮機が駆動されると、蒸発
器に接続された回路配管から吸入孔１３を通って吸入室
９に導かれた冷媒ガスは、各吸入口３を経て順次吸入過
程にあるボア２に吸入され、圧縮された冷媒ガスは各吐
出口４から順次吐出室８に吐出されて、吐出孔１１を経
由凝縮器に接続された回路配管へと送出される。Therefore, when the compressor is driven, the refrigerant gas guided to the suction chamber 9 from the circuit pipe connected to the evaporator through the suction hole 13 is sequentially suctioned through each suction port 3. The refrigerant gas sucked into the bore 2 and compressed is sequentially discharged from each discharge port 4 to the discharge chamber 8, and is discharged to a circuit pipe connected to the condenser via the discharge hole 11.
【０００４】[0004]
【発明が解決しようとする課題】ところが、図４に明示
されているごとく、一般に吸入室の形状は設計上の制約
などから複雑なものとなることが多く、吸入室に開口す
る吸入孔の近傍位置と、同開口から最も離隔した位置と
では、ガス流れに伴う圧力損失により意外に大きな圧力
差が生じ、例えば３０００ｒ．ｐ．ｍの回転数におい
て、その値は０．５〜１ｋｇ／ｃｍ2 にも達する。この
ため、吸入孔開口部から遠隔した吸入口と対応するボア
ほど常に希薄な冷媒ガスを吸入することとなり、体積効
率の低下ばかりでなく、これら不均一な吸入が吸入脈動
に起因する関連機器の振動や騒音を増幅させる。However, as clearly shown in FIG. 4, in general, the shape of the suction chamber is often complicated due to design restrictions and the like. An unexpectedly large pressure difference occurs between the position and the position farthest from the opening due to the pressure loss caused by the gas flow. p. At a rotational speed of m, the value reaches 0.5-1 kg / cm 2 . As a result, the refrigerant gas which is more dilute in the bore corresponding to the suction port remote from the suction hole opening will not only lower the volumetric efficiency, but also the uneven suction will cause the pulsation of the related equipment caused by the suction pulsation. Amplifies vibration and noise.
【０００５】本発明は、吸入室内の圧力の均斉化を図る
ことを解決すべき技術課題とするものである。An object of the present invention is to solve the problem of equalizing the pressure in the suction chamber.
【０００６】[0006]
【課題を解決するための手段】本発明は上記課題解決の
ため、複数のボアを並設したシリンダブロックと、該各
ボアに対応した吸入口及び吐出口を有する弁板を挟ん
で、上記シリンダブロックの外端を閉塞するシリンダヘ
ッドとを備え、上記各ボアに挿嵌されたピストンが所定
の位相差をもって往復動する形式の圧縮機おいて、上記
シリンダヘッド内の中央域には吐出室、その外周域には
吸入室が画設され、冷凍回路に接続される吸入フランジ
はその吸入孔が吸入室内の径方向に懸隔する少なくとも
二つの領域に延在されており、該吸入孔は導孔を介して
上記吸入室内の複数領域と直接連通されてなる新規な構
成を採用している。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a cylinder block having a plurality of bores arranged side by side and a valve plate having a suction port and a discharge port corresponding to each of the bores. A cylinder head that closes the outer end of the block, wherein a piston inserted into each of the bores reciprocates with a predetermined phase difference, wherein a discharge chamber is provided in a central region in the cylinder head. A suction chamber is defined in the outer peripheral area, and a suction flange connected to a refrigeration circuit.
At least whose suction holes are radially suspended in the suction chamber
Are extended in two regions, intake in hole via a guide hole employs a novel structure comprising communicates directly with the plurality of regions of the suction chamber.
【０００７】[0007]
【０００８】[0008]
【作用】圧縮機が駆動されると、順次吸入行程へと移行
する各ボアには、対応する吸入口及び該吸入口からから
至近位置に開口されている導孔を介して冷媒ガスが円滑
に吸入され、吸入室内の流路抵抗に基づく圧力損失は合
理的に低減されるので、各ボア間に生じていた吸入冷媒
ガスの圧力格差は良好に均斉化される。When the compressor is driven, refrigerant gas is smoothly supplied to each of the bores which sequentially shifts to the suction stroke through the corresponding suction port and the guide hole opened from the suction port to the nearest position. Since the pressure loss due to the flow path resistance in the suction chamber after being sucked is reduced rationally, the pressure difference of the suction refrigerant gas generated between the respective bores is favorably equalized.
【０００９】[0009]
【実施例】以下、図１〜図３に基づいて本発明の実施例
を具体的に説明する。なお、従来装置と同等の構成要素
には同一の符号を付して詳しい説明は省略する。すなわ
ち、弁板５を挟んでシリンダブロック１の外端を閉塞す
るシリンダヘッド２０には、その側壁に沿って吸入フラ
ンジ２１が一体的に形成され、該吸入フランジ２１に穿
設された直状の吸入孔２２は、圧縮機のほぼ軸心を通っ
て径方向に延在されており、該吸入孔２２は吸入室９の
底壁を貫通する導孔２３、２３を介して、該吸入室９内
の互いに懸隔する二つの領域と直接連通せしめられてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to FIGS. Note that the same components as those of the conventional device are denoted by the same reference numerals, and detailed description thereof will be omitted. That is, a suction flange 21 is integrally formed along a side wall of a cylinder head 20 that closes an outer end of the cylinder block 1 with the valve plate 5 interposed therebetween. The suction hole 22 extends in the radial direction substantially through the axis of the compressor, and the suction hole 22 is connected to the suction chamber 9 through guide holes 23, 23 passing through the bottom wall of the suction chamber 9. In direct communication with two regions of the interior that are spaced apart from each other.
【００１０】したがって、圧縮機が駆動されて順次吸入
行程へと移行する各ボア２には、対応する吸入口３及び
該吸入口３から至近位置に開口されている各導孔２３、
２３を介して冷媒ガスが円滑に吸入され、吸入室９内の
流路抵抗に基づく圧力損失は合理的に低減されるので、
各ボア２間に生じていた吸入冷媒ガスの圧力格差は良好
に均斉化される。Therefore, each of the bores 2 which are driven by the compressor to sequentially shift to the suction stroke are provided with the corresponding suction port 3 and each of the guide holes 23 which are opened from the suction port 3 at a close position.
Since the refrigerant gas is smoothly sucked in through 23 and the pressure loss based on the flow path resistance in the suction chamber 9 is reduced rationally,
The pressure difference of the suction refrigerant gas generated between the respective bores 2 is well balanced.
【００１１】なお、上述の実施例では、冷媒ガスが吸入
室９内の互いに懸隔する二つの領域と連通する導孔２
３、２３を介して吸入される構成について説明したが、
図３に鎖線で表したように、吸入フランジ２１の胴部と
共に吸入孔２２をＴ字状に形成して、これに導孔２３′
を増設すれば、各ボアに吸入される冷媒ガスの圧力格差
をより一層均斉化させることができる。この場合、吸入
フランジ２１は必ずしもシリンダヘッド２０との一体化
構造を強いられるものではなく、吸入フランジ２１の形
状如何によってはこれを独立部品として製作し、シリン
ダヘッド２０に固着させる形態で実施することも可能で
ある。In the above-described embodiment, the refrigerant gas flows into the two holes 2 in the suction chamber 9 so as to communicate with each other.
Although the configuration in which the air is sucked through 3, 23 has been described,
As shown by a chain line in FIG. 3, a suction hole 22 is formed in a T-shape together with the body of the suction flange 21 and a guide hole 23 'is formed in the T-shaped hole.
Is increased, the pressure difference of the refrigerant gas sucked into each bore can be further equalized. In this case, the suction flange 21 is not necessarily required to have an integral structure with the cylinder head 20. Depending on the shape of the suction flange 21, the suction flange 21 may be manufactured as an independent part and fixed to the cylinder head 20. Is also possible.
【００１２】[0012]
【発明の効果】以上、詳述したように本発明は、冷凍回
路に接続される吸入フランジが、吸入孔及び導孔を介し
て吸入室内の複数領域と直接連通せしめられているもの
であるから、吸入室内の流路抵抗に基づく圧力損失が低
減されて、各ボアには均斉化された圧力の濃密な冷媒ガ
スが吸入されるので、体積効率の低下を封じて圧縮機の
性能向上に大きく寄与しうるとともに、不均一吸入がも
たらす吸入脈動の抑制により、関連機器に派生する振動
や騒音を効果的に鎮静化することができる。As described above, according to the present invention, the suction flange connected to the refrigeration circuit is in direct communication with a plurality of regions in the suction chamber through the suction hole and the guide hole. The pressure loss due to the flow path resistance in the suction chamber is reduced, and the refrigerant gas with a uniform pressure is sucked into each of the bores. In addition to the contribution, the suppression of the suction pulsation caused by the non-uniform suction makes it possible to effectively mitigate the vibration and noise derived from the related equipment.
【図１】本発明の実施例に係る圧縮機のリヤハウジング
を示す断面側面図。FIG. 1 is a sectional side view showing a rear housing of a compressor according to an embodiment of the present invention.
【図２】本発明の実施例に係る圧縮機の吸入フランジを
示す断面正面図。FIG. 2 is a sectional front view showing a suction flange of the compressor according to the embodiment of the present invention.
【図３】本発明の実施例に係る圧縮機の吸入フランジを
示す側面図。FIG. 3 is a side view showing a suction flange of the compressor according to the embodiment of the present invention.
【図４】従来圧縮機のリヤハウジングを示す断面側面
図。FIG. 4 is a sectional side view showing a rear housing of a conventional compressor.
【図５】従来圧縮機のリヤハウジングを示す断面正面
図。FIG. 5 is a sectional front view showing a rear housing of the conventional compressor.
１はシリンダブロック、２はボア、３は吸入口、５は弁
板、８は吐出室、９は吸入室、２０はシリンダヘッド、
２１は吸入フランジ、２２は吸入孔、２３・２３′は導
孔1 is a cylinder block, 2 is a bore, 3 is a suction port, 5 is a valve plate, 8 is a discharge chamber, 9 is a suction chamber, 20 is a cylinder head,
21 is a suction flange, 22 is a suction hole, and 23 and 23 'are guide holes.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 平松 修 愛知県刈谷市豊田町２丁目１番地 株式 会社豊田自動織機製作所内 (56)参考文献 実開 平２−147876（ＪＰ，Ｕ) 実開 昭61−145884（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F04B 27/08 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Osamu Hiramatsu 2-1-1 Toyota-cho, Kariya-shi, Aichi Pref. Inside Toyoda Automatic Loom Works, Ltd. (56) References JP-U 2-147876 (JP, U) JP-A 61-1445884 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F04B 27/08
Claims (1)
と、該各ボアに対応した吸入口及び吐出口を有する弁板
を挟んで、上記シリンダブロックの外端を閉塞するシリ
ンダヘッドとを備え、上記各ボアに挿嵌されたピストン
が所定の位相差をもって往復動する形式の圧縮機におい
て、上記シリンダヘッド内の中央域には吐出室、その外
周域には吸入室が画設され、冷凍回路に接続される吸入
フランジはその吸入孔が吸入室内の径方向に懸隔する少
なくとも二つの領域に延在されており、該吸入孔は導孔
を介して上記吸入室内の複数領域と直接連通せしめられ
ていることを特徴とする往復動型圧縮機。1. A cylinder block having a plurality of bores arranged side by side, and a cylinder head for closing an outer end of the cylinder block with a valve plate having a suction port and a discharge port corresponding to each of the bores interposed therebetween. the pistons inserted into each bore Te Contact have <br/> the compressor of the type reciprocating with a predetermined phase difference, the discharge chamber in the center region in the cylinder head, the suction chamber in its outer circumferential region The suction flange connected to the refrigeration circuit has a small diameter whose suction hole is suspended in the suction chamber in the radial direction.
Even without which extends into two regions, intake in hole reciprocating compressor, characterized in that via the guide hole are allowed to communicate directly with the plurality of regions of the suction chamber.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05103902A JP3094732B2 (en) | 1993-04-30 | 1993-04-30 | Reciprocating compressor |
| US08/234,311 US5556260A (en) | 1993-04-30 | 1994-04-28 | Multiple-cylinder piston type refrigerant compressor |
| KR1019940009228A KR970004813B1 (en) | 1993-04-30 | 1994-04-29 | Multiple-cylinder piston type refrigerant compressor |
| DE4415088A DE4415088C2 (en) | 1993-04-30 | 1994-04-29 | More piston cooling compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05103902A JP3094732B2 (en) | 1993-04-30 | 1993-04-30 | Reciprocating compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06317249A JPH06317249A (en) | 1994-11-15 |
| JP3094732B2 true JP3094732B2 (en) | 2000-10-03 |
Family
ID=14366362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05103902A Expired - Lifetime JP3094732B2 (en) | 1993-04-30 | 1993-04-30 | Reciprocating compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3094732B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4164965B2 (en) | 1999-10-20 | 2008-10-15 | 株式会社豊田自動織機 | Pulsation suppression structure in a compressor |
| JP2005042624A (en) * | 2003-07-22 | 2005-02-17 | Calsonic Kansei Corp | Compressor |
| JP3979380B2 (en) | 2003-11-17 | 2007-09-19 | 株式会社豊田自動織機 | Thermal insulation structure in a compressor |
-
1993
- 1993-04-30 JP JP05103902A patent/JP3094732B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06317249A (en) | 1994-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20000704 |