JPS62162780A - Intake/discharge valve mechanism for piston type compressor - Google Patents
Intake/discharge valve mechanism for piston type compressorInfo
- Publication number
- JPS62162780A JPS62162780A JP466186A JP466186A JPS62162780A JP S62162780 A JPS62162780 A JP S62162780A JP 466186 A JP466186 A JP 466186A JP 466186 A JP466186 A JP 466186A JP S62162780 A JPS62162780 A JP S62162780A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- discharge
- valve
- hole
- arm
- 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
Links
Landscapes
- Compressor (AREA)
- Check Valves (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はピストン型圧縮機、とくに車両空調用に好適な
圧w41sの吸入・吐出弁機構に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a piston type compressor, particularly a suction/discharge valve mechanism with a pressure w41s suitable for vehicle air conditioning.
従来の技術
既に知らねているたとえば斜板式圧縮機は、斜板と係合
する両頭ピストンが対向するシリンダブロックのボア内
を摺動し、フロント側とリア側1とで等量の圧縮作用が
行ねねるように構成さねており、その吸入・吐出弁機構
を圧縮機のリア側のみを部分的に示した第3図と、弁板
に対してその両側面に密合された吸入弁及び吐出弁との
関係を示した第4図に基づいて説明する。2. Prior Art For example, in a swash plate compressor, which is already known, a double-ended piston that engages with a swash plate slides in the bore of an opposing cylinder block, and the same amount of compression is exerted on the front side and the rear side 1. Figure 3 shows the suction/discharge valve mechanism partially showing only the rear side of the compressor, and the suction valves tightly fitted on both sides of the valve plate. This will be explained based on FIG. 4, which shows the relationship between the valve and the discharge valve.
リヤ側のシリンダブロック1には、その中心部を貫通延
在才る図示しない駆動軸に平行な適数個のボア2が穿設
され、該ボア2にはそねぞれピストン3が前記駆動軸l
ζ取着した斜板(図示路)により往復摺動可能に嵌入さ
れている。A suitable number of bores 2 are bored in the rear cylinder block 1 and are parallel to a drive shaft (not shown) extending through the center thereof, and a piston 3 is inserted into each of the bores 2. axis l
It is fitted so that it can be slid back and forth by the attached swash plate (path shown).
前記シリンダブロック1の端面ば、弁板4を介して接合
さねたハウジング5によって密閉されている。このハウ
ジング5には、外周側及び内周側にそれぞね環伏の吸入
室6及び吐出室7が形成され、これら吸入室6及び吐出
室7は、それぞれ外部冷凍回路と連通されている。また
、前記弁板4には吸入室6とボア2内空間、つまり圧縮
室8とを連通する吸入孔9、及び吐出室7と圧縮室8と
を連通する吐出孔10が貫通されている。The end face of the cylinder block 1 is hermetically sealed by a housing 5 which is joined with a valve plate 4 interposed therebetween. The housing 5 has a circular suction chamber 6 and a discharge chamber 7 formed on the outer circumferential side and the inner circumferential side, respectively, and the suction chamber 6 and the discharge chamber 7 are communicated with an external refrigeration circuit, respectively. Furthermore, a suction hole 9 that communicates between the suction chamber 6 and the internal space of the bore 2, that is, the compression chamber 8, and a discharge hole 10 that communicates between the discharge chamber 7 and the compression chamber 8 are penetrated through the valve plate 4.
前記シリンダブロック1と弁板4との間には、一枚の?
ItW4板からなり前記吸入孔9と対にして打抜き成形
された吸入弁11が介装され、弁板4と前記ハウジング
5との間には、同じく薄鋼板からなり吐出孔10と対応
して成形された吐出弁12とガスケット13が介装され
ている。そして前記吸入弁11の開放位置はボア2の端
縁部に切欠き形成されたストッパ14で、前記吐出弁1
2の開放位置は前記ガスケット13に形成されたリテー
ナ部15によって規制されている。Between the cylinder block 1 and the valve plate 4, there is a single plate.
A suction valve 11 made of an ItW4 plate and stamped to pair with the suction hole 9 is interposed, and between the valve plate 4 and the housing 5 is a suction valve 11 made of a thin steel plate and formed in correspondence with the discharge hole 10. A discharge valve 12 and a gasket 13 are interposed. The open position of the suction valve 11 is set by a stopper 14 formed with a notch in the end edge of the bore 2.
The open position of 2 is regulated by a retainer portion 15 formed in the gasket 13.
このように構成された圧縮機では、斜板室からシリンダ
ブロック1のボア挾り旧ζ形成さねたり人通路によって
案内されたガス冷媒は、弁板4に開口した吸入面016
を経てハウジング5の吸入室6内に入り、矢印Y方向の
ガス流れとなってそれぞれ近傍の吸入孔9からボア2内
(ζ吸入される。In the compressor configured in this manner, the gas refrigerant guided from the swash plate chamber through the bore of the cylinder block 1 through the passageway is directed to the suction surface 016 opened to the valve plate 4.
The gas flows through the suction chamber 6 of the housing 5 in the direction of the arrow Y, and is sucked into the bore 2 (ζ) from the suction holes 9 nearby.
一方吐出ガスは吐出孔10からハウジング5の吐出室7
内に入り、矢印Y′方向のガス流れとなって、同吐出室
7の局部的膨出部と整合する吐出通口17及びシリンダ
ブロック1の吐出通路を経て冷凍回路へと送り出される
。On the other hand, the discharged gas flows from the discharge hole 10 to the discharge chamber 7 of the housing 5.
The gas flows in the direction of arrow Y' and is sent to the refrigeration circuit through the discharge port 17 aligned with the local bulge of the discharge chamber 7 and the discharge passage of the cylinder block 1.
発明が解決しようとする開門点
ところが上述のような圧縮機番とおいては、ハウジング
内の吸入・吐出室とボア内圧縮室との圧力バランスによ
って弁が開閉する#a構であり、吸入・吐出抵抗の変化
やガス流量の変動によって脈動を生じ、こねに弁の不規
則かつ復雑な振動が加算される。The opening point that the invention aims to solve However, in the case of the above-mentioned compressor number, the valve opens and closes depending on the pressure balance between the suction and discharge chambers in the housing and the compression chamber in the bore. Pulsations occur due to changes in resistance and fluctuations in gas flow rate, and irregular and complicated vibrations of the valve are added to the kneading.
この10を従来の吸入弁機構を拡大して示す第5図と、
その断面を表わした第6図について説明すると、吸入弁
11のアーム111はその基部に吐出ガス冷媒の通口と
撓みの調節とを兼ねた楕円伏の貫孔112を有してゆる
やかな先細りテーパVに形成され、そのアーム中心軸線
x −x’上には吸入孔9が整合さねている、第6図に
おける矢印Yは第5図ζでついて説明した吸入孔9に向
うガス流ねを表わしており、吸入孔9の中心を含むその
方向線y’−yは、前記アーム中心軸1sx−x’とほ
ぼ直交する関係に構成されている。したがって吸入弁1
1の開放にともなって吸入孔9からボア2内に流入する
ガス流量は、前記y’−y方向に関してほぼ同レベルで
あるため、第6図(A)及び(B)に示した変形の繰返
しによる振動を生じ、これが正規の撓み方向fx−X’
lの振動と複合して不規則かつ襟雑な振動、つまり脈動
となって伝播するものである。FIG. 5 shows this 10 in an enlarged view of a conventional intake valve mechanism,
Referring to FIG. 6, which shows the cross section of the arm 111, the arm 111 of the suction valve 11 has an oval through hole 112 at its base that serves as a vent for the discharged gas refrigerant and for adjusting the deflection. The arrow Y in FIG. 6 indicates the gas flow toward the suction hole 9 described in connection with FIG. 5 ζ. The direction line y'-y, which includes the center of the suction hole 9, is substantially perpendicular to the arm center axis 1sx-x'. Therefore, suction valve 1
6 (A) and (B) are repeated. This causes vibration in the normal deflection direction fx-X'
It propagates as irregular and coarse vibrations, that is, pulsations, in combination with the vibrations of l.
そしてこの吸入脈期は吸入ホースを伝達媒体、芋発器を
発音媒体として、また、向洋庫因による吐出脈動1.l
t吐出ホースを伝達媒体、凝縮器を発汗体として′I4
音を発生させる。とくに近年車の軽債化ζこともj(い
こわらの発音体と車体が共振して、より高い墨汁の発生
原因となることも多い。現せでは圧―機の吐串側に40
〜t o o cc 程度のマフラを形成して対処して
いるが、吐出温、変の上昇を招くという欠点をともなう
上に、さらに吸入側にもマフラを付設することが現実に
検討されており、一層の体格増加やコスト高を礎けられ
ないばかりでなく、とくに体格;ζついては厳しい車載
制限の故にきわめて深刻な問題ということができる。During this suction pulsation phase, the suction hose is used as a transmission medium, and the potato generator is used as a sounding medium. l
'I4 with the discharge hose as the transmission medium and the condenser as the sweating body.
generate sound. Particularly in recent years, cars have become lighter in debt.
This has been dealt with by forming a muffler of about ~t o o cc, but this has the disadvantage of causing an increase in discharge temperature and temperature, and adding a muffler to the suction side is not actually being considered. Not only is it not possible to increase the body size and increase the cost, but it can also be said that this is a very serious problem because of the strict restrictions on vehicle mounting, especially regarding the body size.
本発明は体格を増加させることなく吸入・吐出弁の振動
を抑え、上記脈動に起因する異音の減衰を図ることを解
決課題とするものである。An object of the present invention is to suppress the vibration of the suction/discharge valve without increasing the size of the valve, and to attenuate the abnormal noise caused by the pulsation.
開門を解決するための手段
本発明は吸入弁及び吐出弁の少なくとも一方の各アーム
が、該アーム基端の2支点を結ぶ線分の垂直二等分線か
ら外れて配置wされた吸入孔及び吐出孔を開閉すべく構
成したものである。Means for Solving Gate Opening The present invention provides a suction hole in which each arm of at least one of the suction valve and the discharge valve is disposed deviating from the perpendicular bisector of a line connecting two fulcrums of the base end of the arm; It is configured to open and close the discharge hole.
作用
したがって吸入弁及び吐出弁の各アームは、該アーム基
端の2支点を結ぶ線分の垂直二等分線、すなわち正規の
撓み方向中心線から外れて配若さねた吸入孔及び吐出孔
を介してガス圧力を受けるために、一方側に偏倚した安
定した撓みを生起し。Therefore, each arm of the suction valve and discharge valve has a suction hole and a discharge hole arranged deviating from the perpendicular bisector of a line connecting the two fulcrum points at the base end of the arm, that is, the center line in the normal deflection direction. In order to receive gas pressure through, it causes a stable deflection biased to one side.
これが正規の撓み方向の振動をも抑制するように働く結
果、弁の複雑な振動にと6なう吸入及び吐出1脈動は効
果的に減衰される。This works to suppress vibrations in the normal direction of deflection, and as a result, suction and discharge pulsations caused by complex valve vibrations are effectively damped.
実施例
第1図は本発明の一実施例を示すものであって、■に円
形の吸入孔9を開閉する吸入弁機構、(B)に同じく円
形の吐出孔10を開閉する吐出弁機構が示しである。吸
入弁11のアーム111は、その基端が密接する前記ボ
ア2と交わる2支、I#P、Qで支持さねて先細りテー
パ伏に形成され、一方吐出4912のアーム121は、
その基端が前記ガスケット13のリテーナ部15基縁と
密接する2支点P、Qで支持されて、幅の狭いit部と
頭V部とを有するように形成されている。さらに両弁1
1.12のアーム111.121は、前記各2支6p、
Qを結ぶ線分の垂直二等分線x−x’(正規の撓み方
向中心線)に対して、外れた位閘に配置された吸入孔9
及び吐出孔10を開閉すべく、該吸入・吐出孔9.10
方向に傾角αを有するように形成される。Embodiment FIG. 1 shows an embodiment of the present invention, in which (3) shows a suction valve mechanism that opens and closes a circular suction hole 9, and (B) shows a discharge valve mechanism that opens and closes a similarly circular discharge hole 10. This is an indication. The arm 111 of the suction valve 11 is tapered with its proximal end not supported by two branches I#P and Q that intersect with the bore 2 in close contact with each other, while the arm 121 of the discharge valve 4912 is formed into a tapered shape.
Its base end is supported by two supporting points P and Q that are in close contact with the base edge of the retainer portion 15 of the gasket 13, and is formed to have a narrow IT portion and a head V portion. Furthermore, both valves 1
1.12 arms 111 and 121 each have two supports 6p,
The suction hole 9 is located at a position that is out of line with respect to the perpendicular bisector x-x' (regular center line in the direction of deflection) of the line segment connecting Q.
In order to open and close the discharge hole 10, the suction/discharge hole 9.10
It is formed to have an inclination angle α in the direction.
Y及びY′は埴4図1ζついて説明したように、吸入孔
9に向う吸入室6内のガス流れ及び吐出孔10から吐出
通路17に向う吐出室7内のガス流れを表わしており、
その方向線y’−yは前記アーム111.121の正規
の碗み方向(x−x’)に対してほぼ直交する関係に構
成さねている、したがってより好ましくは吸入孔9及び
吐出孔10が、前記垂直二等分線x −x’に対して前
記ガス冷媒の流ね方向y側に外れて配置されるように形
成する。As explained with reference to Fig. 1ζ, Y and Y' represent the gas flow in the suction chamber 6 toward the suction hole 9 and the gas flow in the discharge chamber 7 toward the discharge passage 17 from the discharge hole 10,
The direction line y'-y is arranged in a substantially perpendicular relation to the normal bowling direction (x-x') of the arm 111, 121, and therefore more preferably the suction hole 9 and the discharge hole 10 is formed so as to be located off to the y side in the flow direction of the gas refrigerant with respect to the perpendicular bisector x-x'.
また、吸入孔9及び吐出孔10は図示のように加工の容
易な円形が好適であるが、対称的な多角形、楕円等であ
っても差し支えない。In addition, the suction hole 9 and the discharge hole 10 are preferably circular as shown in the figure because they can be easily machined, but they may also be symmetrical polygons, ellipses, etc.
上記のように構成した吸入・吐出弁1sllIにおいて
は、吸入孔9及び吐出孔10を介して作用するガス圧力
が、吸入弁11及び吐出弁12の各アーム111.12
1に対して、正規の撓み方向中心線(x−x’)から外
ねた位階に集中するため、第2図に示すように各アーム
111.121は一方側に安定した撓みを生起し、これ
が正規の撓み方向の振動をも抑制するように働く結果、
弁の複雑な振動にともなう吸入及び吐出脈動は効果的に
減衰される。なお、吸入孔9及び吐出孔10が前記垂直
二等分線x −x’に対して、前記ガス冷媒の流ね方向
y側に外れて配置されるように形成すれば、弁の撓み方
向がガス流れに逆らうことなく弁のより一層の安定化が
期待できる。In the suction/discharge valve 1sllI configured as described above, the gas pressure acting through the suction hole 9 and the discharge hole 10 is
1, each arm 111, 121 causes a stable deflection on one side, as shown in FIG. As a result, this works to suppress vibrations in the normal direction of deflection.
Suction and discharge pulsations associated with complex vibrations of the valve are effectively damped. In addition, if the suction hole 9 and the discharge hole 10 are formed so as to be disposed in the direction y of the flow direction of the gas refrigerant with respect to the perpendicular bisector x-x', the direction of deflection of the valve can be changed. Further stabilization of the valve can be expected without going against the gas flow.
発明の効果
本発明はト述の構成により、吸入弁及び吐出弁の不規則
かつ複雑な振動を抑え、吸入及び吐出脈動を巧みに減衰
させることができるため、吐出温倹の上昇や圧縮機の体
格増加を招くことなく、前記脈動が伝達媒体を介して発
音体である蒸発器や凝1に1機に生じさせる異音(騒昔
)を著しく舒減させる効果がある。Effects of the Invention With the configuration described above, the present invention can suppress irregular and complex vibrations of the suction valve and discharge valve, and skillfully dampen suction and discharge pulsations. It has the effect of significantly reducing the abnormal noise (noisy noise) caused by the pulsation in the evaporator and condenser 1, which are sounding bodies, through the transmission medium, without causing an increase in body size.
第1図は本発明の一実施例を示すもので偽)は吸入弁1
11!構、■)は吐出弁Ps廣を示す部分拡大図、第2
図は第1図の実施例におけるガス流れと安定した弁の陣
みを示す断面図、第3図は吸入・吐出弁機構を含む斜板
式圧1#機の部分破断正面μs、第4図は第3図のA−
A線断面図、第5図は従来の吸入弁機構を示す部分拡大
図、第6図(A)、(B)は従来の吸入弁機構のガス流
れと不安定な弁の繰返し変形の抄部を示す断面図である
。
1・・・シリンダブロック、2・・・ボア、3・・・ピ
ストン、4・・・弁板、5・・・ハウジング、ト・・吸
入室、7・・・吐出室、訃・・圧縮室、9・・・吸入孔
、10・・・吐出孔、11・・・吸入弁、111・・・
アーム、12・・・吐出弁、121・・・アーム、
特許出頓人
株式会社豊田自効織機製作所
第2図
―A
第4図
第5図
第6図
(A)Figure 1 shows an embodiment of the present invention;
11! Structure, ■) is a partial enlarged view showing the discharge valve Ps wide, 2nd
The figure is a cross-sectional view showing the gas flow and stable arrangement of valves in the embodiment shown in Figure 1, Figure 3 is a partially cutaway front view μs of the swash plate type pressure 1# machine including the suction/discharge valve mechanism, and Figure 4 is A- in Figure 3
5 is a partially enlarged view showing a conventional suction valve mechanism, and FIGS. 6 (A) and (B) are illustrations of gas flow and repeated deformation of an unstable valve in a conventional suction valve mechanism. FIG. DESCRIPTION OF SYMBOLS 1... Cylinder block, 2... Bore, 3... Piston, 4... Valve plate, 5... Housing, G... Suction chamber, 7... Discharge chamber, End... Compression chamber , 9... Suction hole, 10... Discharge hole, 11... Suction valve, 111...
Arm, 12...Discharge valve, 121...Arm, Toyoda Jikaku Loom Manufacturing Co., Ltd. Figure 2-A Figure 4 Figure 5 Figure 6 (A)
Claims (2)
ロックの端面に対し、弁板を介して吸入室と吐出室と形
成するハウジングを取付け、その吸入室及び吐出室と前
記ボアとを円形の吸入孔と吸入弁及び円形の吐出孔と吐
出弁を介してそれぞれ連通し、前記吸入弁及び吐出弁を
弁板に接触した閉鎖位置と弁板から所定距離離間した開
放位置との間で往復動可能に支持するようにしたピスト
ン型圧縮機において、前記吸入弁及び吐出弁の少なくと
も一方の各アームが、該アーム基端の2支点を結ぶ線分
の垂直二等分線から外れて配置された前記吸入孔及び吐
出孔を開閉すべく構成したことを特徴とするピストン型
圧縮機の吸入・吐出弁機構。(1) A housing forming a suction chamber and a discharge chamber is attached via a valve plate to the end face of a cylinder block in which a bore on which the piston slides is bored, and the suction chamber, discharge chamber, and the bore are arranged in a circular shape. The suction hole communicates with the suction valve, and the circular discharge hole and the discharge valve communicate with each other, and the suction valve and the discharge valve are reciprocated between a closed position where they are in contact with the valve plate and an open position where they are spaced a predetermined distance from the valve plate. In the piston type compressor, each arm of at least one of the suction valve and the discharge valve is disposed apart from a perpendicular bisector of a line connecting two supporting points at the base end of the arm. A suction/discharge valve mechanism for a piston type compressor, characterized in that the suction hole and the discharge hole are configured to open and close.
対して、該吸入孔及び吐出孔に出入する冷媒ガスの前記
吸入・吐出室内における流れ方向側に外れて配置された
ものである特許請求の範囲第1項記載の吸入・吐出弁機
構。(2) The suction hole and the discharge hole are arranged offset from the perpendicular bisector in the flow direction of the refrigerant gas flowing in and out of the suction hole and the discharge hole in the suction and discharge chamber. A suction/discharge valve mechanism according to claim 1.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP466186A JPS62162780A (en) | 1986-01-13 | 1986-01-13 | Intake/discharge valve mechanism for piston type compressor |
US07/002,307 US4764091A (en) | 1985-12-05 | 1987-01-09 | Piston type compressor for air conditioning unit with asymmetric valve mechanisms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP466186A JPS62162780A (en) | 1986-01-13 | 1986-01-13 | Intake/discharge valve mechanism for piston type compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62162780A true JPS62162780A (en) | 1987-07-18 |
Family
ID=11590112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP466186A Pending JPS62162780A (en) | 1985-12-05 | 1986-01-13 | Intake/discharge valve mechanism for piston type compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62162780A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007029366A1 (en) * | 2005-09-07 | 2007-03-15 | Valeo Thermal Systems Japan Corporation | Reciprocating compressor |
-
1986
- 1986-01-13 JP JP466186A patent/JPS62162780A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007029366A1 (en) * | 2005-09-07 | 2007-03-15 | Valeo Thermal Systems Japan Corporation | Reciprocating compressor |
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