JPH01142290A - Discharge valve device for refrigerant compressor - Google Patents
Discharge valve device for refrigerant compressorInfo
- Publication number
- JPH01142290A JPH01142290A JP29924487A JP29924487A JPH01142290A JP H01142290 A JPH01142290 A JP H01142290A JP 29924487 A JP29924487 A JP 29924487A JP 29924487 A JP29924487 A JP 29924487A JP H01142290 A JPH01142290 A JP H01142290A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- cylinder
- chamber
- opening
- shaped
- 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
- 239000003507 refrigerant Substances 0.000 title claims description 44
- 238000007599 discharging Methods 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000013527 bean curd Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は空調機器用冷凍装置に使用される冷媒圧縮機の
吐出・弁装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a discharge/valve device for a refrigerant compressor used in a refrigeration system for air conditioning equipment.
従来の技術
空調機器用冷凍８置に使用される冷媒圧縮機の吐出弁装
置においては、運転効率の向上を図るために種々の改善
が試みられている。BACKGROUND OF THE INVENTION Various improvements have been attempted in the discharge valve device of a refrigerant compressor used in a refrigeration system for air conditioning equipment in order to improve operating efficiency.
この冷媒圧縮機の吐出弁Ｖｉｅ置は一般的にフラット弁
が使用されており、シリンダ室内でピストンにより圧縮
された冷媒ガスを、シリンダに設けられた吐出孔から、
前記フラット弁の“開閉により、吐出する構成になって
いる。この場合、冷媒ガスの過圧縮を防ぐため、吐出孔
の断面積を十分大きくしなければならず、また、シリン
ダ内壁とフラット弁取り付は部の剛性を確保するため、
吐出孔が長くなる構成にしなければならないので、吐出
孔の容積が大きくなっている。この結果、圧縮された冷
媒ガスがシリンダ室から吐出孔を通して吐出されるとき
に、吐出孔内に残る冷媒ガスが多くなり、この残った冷
媒ガスがシリンダの低圧室側に流入し、再膨張すること
になり、圧４１１機の運転効率を低下させ、冷媒ガスの
吐出温度を上昇させる大きな要因となっている。A flat valve is generally used for the discharge valve Vie of this refrigerant compressor, and the refrigerant gas compressed by the piston in the cylinder chamber is passed through the discharge hole provided in the cylinder.
The structure is such that the discharge is performed by opening and closing the flat valve. In this case, in order to prevent overcompression of the refrigerant gas, the cross-sectional area of the discharge hole must be made sufficiently large, and the inner wall of the cylinder and the flat valve handle must be made sufficiently large. In order to ensure the rigidity of the part,
Since the discharge hole must be configured to be long, the volume of the discharge hole is large. As a result, when compressed refrigerant gas is discharged from the cylinder chamber through the discharge hole, more refrigerant gas remains in the discharge hole, and this remaining refrigerant gas flows into the low pressure chamber side of the cylinder and expands again. This is a major factor in reducing the operating efficiency of the pressure 411 machine and increasing the discharge temperature of the refrigerant gas.
そこで、吐出孔容積を小さくする吐出弁装置の構成とし
て、カール弁構造があるが、これを図面を参照しながら
説明する。圧縮要素部を示す第５図において、シリンダ
１の室内には、動力を伝達するクランク軸２により駆動
されるローリングピストン３が配置されており、このロ
ーリングビストン３は、クランク軸２が回転すると、前
記シリンダ１の室内の内周面上を摺動して回転するよう
になっている。４はベーンで、前記ローリングピストン
３の外周面に摺接するように、その背部がばね５で押圧
されている。６は吐出孔で、第６図に示すように前記シ
リンダ１のラジアル方向に２箇所設けられている。７は
シリンダ１の壁体中にシリンダ室と平行に隣接された円
筒状の弁室、８は前記吐出孔６を開放自在に閉塞する丸
形吐出弁体である。９は吐出弁押え板で、前記吐出孔６
の付近で前記丸形吐出弁体８と所定間隙を保持するよう
に彎曲している。そして、これら丸形吐出弁体８と吐出
弁押え板９はボルト１０により前記弁室７を形成する“
壁体に一体に固着されている。１１は上記吐出孔６の穴
加工を前記シリンダ１の外方より行ったとき形成される
補助加工穴で、組立時、前記丸形吐出弁体８の一端を延
長して閉塞される。Therefore, there is a curl valve structure as a configuration of a discharge valve device that reduces the volume of the discharge hole, and this will be explained with reference to the drawings. In FIG. 5 showing the compression element, a rolling piston 3 driven by a crankshaft 2 that transmits power is disposed inside the cylinder 1. When the crankshaft 2 rotates, the rolling piston 3 It rotates by sliding on the inner peripheral surface of the chamber of the cylinder 1. Reference numeral 4 denotes a vane, the back of which is pressed by a spring 5 so as to come into sliding contact with the outer peripheral surface of the rolling piston 3. Reference numeral 6 denotes discharge holes, which are provided at two locations in the radial direction of the cylinder 1, as shown in FIG. 7 is a cylindrical valve chamber adjacent to the cylinder chamber in parallel with the wall of the cylinder 1; 8 is a round discharge valve body which freely closes the discharge hole 6; 9 is a discharge valve holding plate, and the discharge hole 6 is
It is curved so as to maintain a predetermined gap with the round discharge valve body 8 near the round discharge valve body 8. These round discharge valve body 8 and discharge valve holding plate 9 are connected to each other by bolts 10 to form the valve chamber 7.
It is fixed integrally to the wall. Reference numeral 11 denotes an auxiliary machined hole that is formed when the discharge hole 6 is machined from the outside of the cylinder 1, and is closed by extending one end of the round discharge valve body 8 during assembly.
１２は冷媒ガスの前記シリンダ１の室内への吸入孔であ
る。なお、シリンダ１は両側面に設ける側板により密閉
され、圧縮要素部はシェル内に収納される（図示せず）
。12 is a suction hole for refrigerant gas into the interior of the cylinder 1; The cylinder 1 is sealed by side plates provided on both sides, and the compression element is housed in a shell (not shown).
.
以上のように構成された冷媒圧縮機の吐出弁装置におい
ては、吸入孔１２よりシリンダ１の室内へ流入した冷媒
ガスは、ローリングピストン３がシリンダ１の内壁を回
動することにより圧縮され、圧縮されて高温・高圧とな
った冷媒ガスは、吐出孔６より丸形吐出弁８を押し上げ
て弁室７内へ吐出される。このとき吐出孔６の内部の高
圧の冷媒ガスは、ローリングピストン３が吐出孔６を通
過すると、シリンダ１の低圧室側へ流入して再膨張する
ことになり、冷媒圧縮機の運転効率を劣化させるととも
に、吐出温度を上昇させる。したがって、吐出孔容積を
小さく構成し、高温・高圧冷媒ガスの再膨張量を極力少
くしなければならない。In the refrigerant compressor discharge valve device configured as described above, the refrigerant gas flowing into the chamber of the cylinder 1 from the suction hole 12 is compressed by the rolling piston 3 rotating on the inner wall of the cylinder 1. The high temperature and high pressure refrigerant gas pushes up the round discharge valve 8 from the discharge hole 6 and is discharged into the valve chamber 7. At this time, when the rolling piston 3 passes through the discharge hole 6, the high-pressure refrigerant gas inside the discharge hole 6 flows into the low-pressure chamber side of the cylinder 1 and expands again, deteriorating the operating efficiency of the refrigerant compressor. At the same time, the discharge temperature is increased. Therefore, it is necessary to configure the discharge hole volume to be small and to minimize the amount of re-expansion of the high-temperature, high-pressure refrigerant gas.
発明が解決しようとする問題点
しかしながら上記のような開放型冷媒圧縮の構成では、
シリンダ１と両側板を完全に密閉するために、シリンダ
の両側端面に、シリンダの内周面に沿って０リングを挿
入する必要がある。そして、このシリンダ両側端面に０
リング部が存在するために、弁室７を円筒状に加工した
としても、その径を大きくしたり、シリンダ室に近づけ
たりして、吐出孔６のラジアル方向の寸法を短くするよ
うなことはできず、したがって、吐出孔６の容積を従来
のフラット弁構成の場合より大きく減少させることはで
きず、そこで冷媒圧縮機の運転効率の向上を望むことは
できなくなり、また、吐出温度を上昇させるという問題
点を有していた。Problems to be Solved by the Invention However, in the open type refrigerant compression configuration as described above,
In order to completely seal the cylinder 1 and both side plates, it is necessary to insert O-rings into both end faces of the cylinder along the inner peripheral surface of the cylinder. Then, 0 is applied to both end surfaces of this cylinder.
Because of the presence of the ring portion, even if the valve chamber 7 is machined into a cylindrical shape, it is impossible to shorten the radial dimension of the discharge hole 6 by increasing its diameter or moving it closer to the cylinder chamber. Therefore, it is not possible to reduce the volume of the discharge hole 6 to a greater extent than in the case of the conventional flat valve configuration, which makes it impossible to hope for an improvement in the operating efficiency of the refrigerant compressor, and also increases the discharge temperature. There was a problem.
本発明は上記問題点に鑑み、開放型冷媒圧Ｓ機において
、吐出孔の容積を極力小さくし、再膨張冷媒ガスによる
運転効率の劣化を防ぎ、運転効率の向上と、吐出温度の
低下をはかった冷媒圧縮機の吐出弁装置を提供するもの
である。In view of the above problems, the present invention aims to minimize the volume of the discharge hole in an open type refrigerant pressure S machine, prevent deterioration of operating efficiency due to re-expanded refrigerant gas, improve operating efficiency, and lower discharge temperature. The present invention provides a discharge valve device for a refrigerant compressor.
問題点を解決・するための手段
上記問題点を解決するために、本発明は、シリンダ室の
ラジアル方向に形成されて、一端でシリンダ室に連通す
る吐出孔と、内側面に前記吐出孔の他端が円弧状に開口
する吐出室と、この吐出室内に平板状の取付部で固定さ
れ、円弧状の弁体部が前記吐出孔の開口を開閉するＪ形
吐出弁体とを備えた構成としたものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a discharge hole formed in the radial direction of the cylinder chamber and communicating with the cylinder chamber at one end, and a discharge hole formed on the inner surface of the cylinder chamber. A configuration comprising a discharge chamber whose other end opens in an arc shape, and a J-shaped discharge valve body that is fixed in the discharge chamber by a flat mounting part, and whose arc-shaped valve body opens and closes the opening of the discharge hole. That is.
作用
本発明は上記した構成によって、吐出室側の吐出孔の開
口を円弧状に形成しているため、シリンダ両側端面に設
けられるＯリング部に影響を与えることなく、吐出孔の
ラジアル方向の寸法を小さくすることができ、吐出孔の
容積を著しく減少させることができる。したがって、吐
出孔の内部に残り、シリンダ低圧室側へ再膨張する冷媒
ガスの量が減少し、冷媒圧縮機の運転効率の向上をはか
り、吐出温度を低下させることができる。Function: With the above-described configuration, the opening of the discharge hole on the discharge chamber side is formed in an arc shape, so the radial dimension of the discharge hole can be adjusted without affecting the O-rings provided on both end surfaces of the cylinder. can be made smaller, and the volume of the discharge hole can be significantly reduced. Therefore, the amount of refrigerant gas that remains inside the discharge hole and re-expands toward the cylinder low-pressure chamber side is reduced, improving the operating efficiency of the refrigerant compressor and lowering the discharge temperature.
実施例
以下本発明の冷媒圧縮機の吐出弁装置の一実施例を図面
を参照しながら説明する。EXAMPLE Hereinafter, an example of a discharge valve device for a refrigerant compressor according to the present invention will be described with reference to the drawings.
Ｗ１図〜第３図において、シリンダ２１に形成されたシ
リンダ室２２の内部には、クランク軸２３に回転駆動さ
れるロータシャフト２４が配置されており、ロータシャ
フト２４に形成されたベーン溝２５には、先端がシリン
ダ室２２の内周面上をＭ勧するベーン２６が出退自在に
設けられている。また、シリンダ２１には、ラジアル方
向に吐出孔２７が一端でシリンダ室２２に連通して設け
られており、吐出孔２７の他端はシリンダヘッド２８で
囲まれた吐出室２９に連通している。そして、吐出孔２
７の他端は、シリンダ２１の外側面、すなわち吐出室２
９の内側面に円弧状に開口して円弧状開口部３０を形成
している。この円弧状開口部３０には、吐出孔２７の開
口を開閉するＪ形吐出弁３１の円弧状の弁体部３２が位
置している。In Figures W1 to 3, a rotor shaft 24 that is rotatably driven by a crankshaft 23 is disposed inside a cylinder chamber 22 formed in a cylinder 21, and a rotor shaft 24 that is rotatably driven by a crankshaft 23 is installed in a vane groove 25 formed in the rotor shaft 24. A vane 26 whose tip extends over the inner circumferential surface of the cylinder chamber 22 is provided so as to be movable in and out. Further, in the cylinder 21, a discharge hole 27 is provided in the radial direction so as to communicate with the cylinder chamber 22 at one end, and the other end of the discharge hole 27 communicates with a discharge chamber 29 surrounded by a cylinder head 28. . And the discharge hole 2
The other end of 7 is the outer surface of the cylinder 21, that is, the discharge chamber 2
An arcuate opening 30 is formed by opening in an arcuate shape on the inner surface of the opening 9 . An arcuate valve body portion 32 of a J-shaped discharge valve 31 that opens and closes the opening of the discharge hole 27 is located in the arcuate opening 30 .
そして、Ｊ形吐出弁３１はＪ形吐出弁押え板３３によっ
て押えられており、Ｊ形吐出弁押え板３３は吐出孔２７
の付近でＪ形吐出弁３１と所定間隙をあけて設けられて
いる。そして、Ｊ形吐出弁３１は平板状の取付部３４で
、Ｊ形吐出弁押え板３３とともに、取付台座３５にボル
ト３６で固定されている。また、取付台座３５は固定ボ
ルト３７でシリンダ２１に固定されている。そして、シ
リンダ２１の両側端面には、シリンダ室２２を密閉する
フロントプレート３８とリアプレート３９が０リング４
０を、介在させて設けられており、０リング４０はシリ
ンダ２１の両側端面に形成したＯリング溝４１に配ばさ
れている。そして、シリンダヘッド２８には、吸込ボー
ト４２が設けられるとともに、吸込ボート４２に通通し
ぞ吸込室４３が形成されている。また、この吸込室４３
に連通する吸込孔４４がシリンダ２１に形成されており
、吸込孔４４は、シリンダ室２２の一部である吸込溝４
５に連通している。なお、４６はリアケース４７に設け
られた吐出ボートであり、４８はクランク軸２３に駆動
力を伝えるクラッチである。The J-type discharge valve 31 is held down by a J-type discharge valve holding plate 33, and the J-type discharge valve holding plate 33
It is provided near the J-shaped discharge valve 31 with a predetermined gap therebetween. The J-shaped discharge valve 31 is fixed to a mounting base 35 with bolts 36 together with a J-shaped discharge valve holding plate 33 through a flat mounting portion 34 . Furthermore, the mounting base 35 is fixed to the cylinder 21 with fixing bolts 37. On both end surfaces of the cylinder 21, a front plate 38 and a rear plate 39 that seal the cylinder chamber 22 are provided with an O-ring 4.
The O-rings 40 are arranged in O-ring grooves 41 formed on both end surfaces of the cylinder 21. A suction boat 42 is provided in the cylinder head 28, and a suction chamber 43 is formed through the suction boat 42. In addition, this suction chamber 43
A suction hole 44 is formed in the cylinder 21 and communicates with the suction groove 4 which is a part of the cylinder chamber 22.
It is connected to 5. Note that 46 is a discharge boat provided in the rear case 47, and 48 is a clutch that transmits driving force to the crankshaft 23.
以上のように構成された冷媒圧Ｓ機の吐出弁装置の動作
を説明する。ロータシャフト２４が回転すると、吸込ボ
ート４２から導入された冷媒ガスは、吸込室４３、吸込
孔４４、吸込溝４５を通じて、シリンダ室２２の内部に
流入し、シリンダ室２２の内周面上を摺動するベーン２
６の作用により、圧縮され、高圧の冷媒ガスとなる。そ
して、この高圧の冷媒ガスはＪ形吐出弁３１を押し上げ
て、吐出孔２７から吐出室２９へ吐出される。このとき
、ベーン２６が吐出孔２７を通過すると、吐出孔２７の
内部内に残留している高温、高圧の冷媒ガスは、シリン
ダ２１の（低圧室側へ再膨張するが、吐出孔２７の吐出
室２９の側が円弧状開口部３０となっているため、シリ
ンダ￥２２のラジアル方向における吐出孔２７の寸法を
極力短くすることができ、過圧縮を防止するだけの吐出
孔断面積をとったとしても、吐出孔２７の容積は著しく
小さくすることができるので、吐出孔２７の内部に残留
する高温、高圧の冷媒ガスの再膨張量を激減させて、冷
媒圧縮機の運転効率の向上、吐出温度の低減を図ること
ができるものである。The operation of the discharge valve device of the refrigerant pressure S machine configured as described above will be explained. When the rotor shaft 24 rotates, the refrigerant gas introduced from the suction boat 42 flows into the cylinder chamber 22 through the suction chamber 43, the suction hole 44, and the suction groove 45, and slides on the inner peripheral surface of the cylinder chamber 22. moving vane 2
6, the refrigerant gas is compressed and becomes a high-pressure refrigerant gas. Then, this high-pressure refrigerant gas pushes up the J-shaped discharge valve 31 and is discharged from the discharge hole 27 into the discharge chamber 29 . At this time, when the vane 26 passes through the discharge hole 27 , the high temperature and high pressure refrigerant gas remaining inside the discharge hole 27 expands again toward the low pressure chamber side of the cylinder 21 . Since the side of the chamber 29 is an arc-shaped opening 30, the dimension of the discharge hole 27 in the radial direction of the cylinder 22 can be made as short as possible, and even if the cross-sectional area of the discharge hole is sufficient to prevent overcompression. Also, since the volume of the discharge hole 27 can be significantly reduced, the amount of re-expansion of the high-temperature, high-pressure refrigerant gas remaining inside the discharge hole 27 is drastically reduced, improving the operating efficiency of the refrigerant compressor and reducing the discharge temperature. It is possible to reduce this.
また、円弧状開口部３０は吐出孔２７の部分のみを加工
しており、円弧状開口部３０は薄肉となり、剛性が低下
するが、シリンダ２１の両側端面側は従来のフラット弁
使用時と同等の肉厚があり、シリンダ部分の剛性を十分
確保することができる。In addition, only the discharge hole 27 is machined in the arcuate opening 30, and the arcuate opening 30 becomes thinner and has lower rigidity, but both end faces of the cylinder 21 are the same as when using a conventional flat valve. It has a wall thickness of 100 mm, and can ensure sufficient rigidity of the cylinder part.
さらに、Ｊ形吐出弁３１と取付台座３５との取付状態を
、固定ボルト３７をゆるめるだけで容易に調整でき、Ｊ
形吐出弁３１の円弧状開口部３０との密着度合を適切に
することができ、Ｊ形吐出弁３１の吐出孔２７の開口に
おける密着不足から生じる吐出室２９からの冷媒ガスの
逆流を防止することができる。Furthermore, the mounting condition between the J-type discharge valve 31 and the mounting base 35 can be easily adjusted by simply loosening the fixing bolt 37.
The degree of close contact with the arc-shaped opening 30 of the J-shaped discharge valve 31 can be made appropriate, and backflow of refrigerant gas from the discharge chamber 29 caused by insufficient close contact at the opening of the discharge hole 27 of the J-shaped discharge valve 31 can be prevented. be able to.
このように、吐出室２９の側の吐出孔２７の開口のみを
円弧状に形成し、Ｊ形吐出弁３１を円弧状開口部３０に
設置することにより、吐出孔容積を小さくでき、吐出孔
２７の内部に残る高温・高圧の冷媒ガスの再膨張量が減
少し、冷媒圧縮機の運転効率の向上、吐出温度の低減を
はかり、かつシリンダ２１の剛性も確保できる。また、
Ｊ形吐出弁３１の組立調整も容易にすることができる。In this way, by forming only the opening of the discharge hole 27 on the side of the discharge chamber 29 in an arc shape and installing the J-shaped discharge valve 31 in the arc-shaped opening 30, the volume of the discharge hole can be reduced. The amount of re-expansion of the high-temperature, high-pressure refrigerant gas remaining inside the cylinder 21 is reduced, improving the operating efficiency of the refrigerant compressor, reducing the discharge temperature, and ensuring the rigidity of the cylinder 21. Also,
Assembly and adjustment of the J-type discharge valve 31 can also be facilitated.
次に、本発明の他の実施例について、第４図を参照しな
がら説明する。第４図において、５１はシリンダヘッド
と一体構造にしたシリンダ、５２はロータシャフト、５
３はベーン、５４は吐出孔である。Next, another embodiment of the present invention will be described with reference to FIG. In FIG. 4, 51 is a cylinder integrated with the cylinder head, 52 is a rotor shaft, and 5
3 is a vane, and 54 is a discharge hole.
５５は前記シリンダ５１の側面から形成された吐出室で
、前記吐出孔５４の前記吐出室５５の側に円弧状開口部
５６が形成される。５７はＪ形吐出弁でその円弧状部分
は前記円弧状開口部５６に開閉自在に密着する。５８は
Ｊ形吐出弁押え板で、前記Ｊ形吐出弁５７と一体で、そ
の平板部分で前記シリンダ５１の前記吐出室５５の内部
にボルト５９で固定される。６０は前記シリンダ５１の
側面に形成した異形シールリング溝で、シールリングに
より前記シリンダ５１と前記吐出室５５を側板（図示せ
ず）で密閉する。なお、６１は吸込孔、６２は吸込溝、
６３は銅パツキンである。55 is a discharge chamber formed from the side surface of the cylinder 51, and an arcuate opening 56 is formed on the side of the discharge chamber 55 of the discharge hole 54. Reference numeral 57 denotes a J-shaped discharge valve, and its arcuate portion is in close contact with the arcuate opening 56 so as to be openable and closable. Reference numeral 58 denotes a J-shaped discharge valve holding plate, which is integrated with the J-shaped discharge valve 57 and whose flat plate portion is fixed to the inside of the discharge chamber 55 of the cylinder 51 with bolts 59. Reference numeral 60 denotes an irregularly shaped seal ring groove formed on the side surface of the cylinder 51, and the seal ring seals the cylinder 51 and the discharge chamber 55 with a side plate (not shown). In addition, 61 is a suction hole, 62 is a suction groove,
63 is a copper packing.
先の実／７！例と異なるのは、シリンダヘッドをシリン
ダ５１と一体構造にした点で、吐出室５５の形成、Ｊ形
吐出弁５７の固定方法が異なってくる。First fruit/7! The difference from the example is that the cylinder head is integrated with the cylinder 51, and the formation of the discharge chamber 55 and the method of fixing the J-shaped discharge valve 57 are different.
上記のように構成された冷媒圧縮機の吐出弁装置の動作
について先の実施例と同様である。すなわち、吐出孔５
４の吐出室５５側には、円弧状開口部５６が形成される
ため、シリンダ５１室のラジアル方向における吐出孔５
４の寸法を短くすることができ、吐出孔５４の容積は小
さくなり、高温・高圧の冷媒ガスの再膨張量が減少し、
運転効率の向上、吐出温度の低減を図ることができる。The operation of the discharge valve device of the refrigerant compressor constructed as described above is the same as in the previous embodiment. That is, the discharge hole 5
Since an arc-shaped opening 56 is formed on the discharge chamber 55 side of the cylinder 51, the discharge hole 5 in the radial direction of the cylinder 51 chamber
4 can be shortened, the volume of the discharge hole 54 is reduced, and the amount of re-expansion of the high temperature and high pressure refrigerant gas is reduced.
It is possible to improve operating efficiency and reduce discharge temperature.
さらに、シリンダヘッドをシ、リンダ５１と一体構造に
しているため、剛性を高める構成となり、従来は鋳物で
あったシリンダ５１をアルミ合金などの軽量材１料に胃
き換えることが可能となり、冷媒圧縮機の軽量化を図る
ことができる。Furthermore, since the cylinder head is integrated with the cylinder 51, it has a structure that increases rigidity, and the cylinder 51, which was previously made of cast metal, can be replaced with a lightweight material such as aluminum alloy, and the refrigerant The weight of the compressor can be reduced.
発明の効果
以上のように本発明によれば、吐出孔の吐出室側の開口
を円弧状に形成し、Ｊ形吐出弁の円弧状の弁体部で吐出
孔の開口を開閉する構成となることにより、吐出孔容積
を小さくすることができ、吐出孔内に残り、シリンダ低
圧室内へ再膨張する高温・高圧の冷媒ガスの吊が減少し
、冷媒圧縮機の運転効率の向上、吐出温度の低減を図る
ことができる。また、薄肉となる円弧状開口部は吐出孔
部のみで、シリンダの両側端の厚みにより、十分な剛性
が確保でき、さらに、Ｊ形吐出弁の組立調整も容易にす
ることができる。Effects of the Invention As described above, according to the present invention, the opening of the discharge hole on the discharge chamber side is formed in an arc shape, and the opening of the discharge hole is opened and closed by the arc-shaped valve body of the J-shaped discharge valve. As a result, the volume of the discharge hole can be reduced, reducing the amount of high-temperature, high-pressure refrigerant gas that remains in the discharge hole and re-expands into the cylinder low-pressure chamber, improving the operating efficiency of the refrigerant compressor and lowering the discharge temperature. It is possible to reduce the Further, the arc-shaped opening that is thin is only the discharge hole, and the thickness of both ends of the cylinder ensures sufficient rigidity, and furthermore, the assembly and adjustment of the J-shaped discharge valve can be facilitated.
第１図は本発明の一実施例の冷奴圧縮機の吐出弁装置の
正面部分断面図、第２図は第１図のＡ−Ａ矢視部分断面
図、第３図は第１図のＢ−８矢視部分断面図、第４図は
本発明の他の実施例の冷媒圧縮機の吐出弁装置の正面部
分断面図、第５図は従来の冷媒圧縮機の吐出弁装置の圧
縮要素部の断面図、第６図は第５図のＣ−Ｃ矢視部分断
面図である。
２１、５１・・・シリンダ、２７．５４・・・吐出孔、
２９．５５・・・吐出室、３０．５６・・・円弧状開口
部、３１．５７・・・Ｊ形吐出弁、３３．５８・・・Ｊ
形吐出弁押え板、３５・・・取付台座、４１、６０・・
・Ｏリング溝。
代理人 森 本 残 弘
２／−−シ９シフ”
第２図
第３図FIG. 1 is a front partial cross-sectional view of a discharge valve device for a cold tofu compressor according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional view taken along the line A-A in FIG. 1, and FIG. 4 is a front partial sectional view of a discharge valve device for a refrigerant compressor according to another embodiment of the present invention, and FIG. 5 is a compression element portion of a conventional discharge valve device for a refrigerant compressor. 6 is a partial sectional view taken along the line C--C in FIG. 5. 21, 51...Cylinder, 27.54...Discharge hole,
29.55...Discharge chamber, 30.56...Circular opening, 31.57...J-shaped discharge valve, 33.58...J
Type discharge valve holding plate, 35...Mounting pedestal, 41, 60...
・O-ring groove. Agent Morimoto Zan Hiro 2/--shi9shifu” Figure 2 Figure 3
Claims (1)
ンダ室に連通する吐出孔と、内側面に前記吐出孔の他端
が円弧状に開口する吐出室と、この吐出室内に平板状の
取付部で固定され、円弧状の弁体部が前記吐出孔の開口
を開閉するＪ形吐出弁とを備えた冷媒圧縮機の吐出弁装
置。1. A discharge hole formed in the radial direction of the cylinder chamber and communicating with the cylinder chamber at one end, a discharge chamber with the other end of the discharge hole opening in an arc shape on the inner surface, and fixed in the discharge chamber by a flat plate-shaped mounting part. A discharge valve device for a refrigerant compressor, comprising: a J-shaped discharge valve having an arcuate valve body portion that opens and closes an opening of the discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29924487A JPH01142290A (en) | 1987-11-27 | 1987-11-27 | Discharge valve device for refrigerant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29924487A JPH01142290A (en) | 1987-11-27 | 1987-11-27 | Discharge valve device for refrigerant compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01142290A true JPH01142290A (en) | 1989-06-05 |
Family
ID=17870017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29924487A Pending JPH01142290A (en) | 1987-11-27 | 1987-11-27 | Discharge valve device for refrigerant compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01142290A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5346375A (en) * | 1991-12-11 | 1994-09-13 | Mitsubishi Denki Kabushiki Kaisha | Delivery valve for a scroll compressor |
| WO2011155176A1 (en) * | 2010-06-07 | 2011-12-15 | パナソニック株式会社 | Compressor |
-
1987
- 1987-11-27 JP JP29924487A patent/JPH01142290A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5346375A (en) * | 1991-12-11 | 1994-09-13 | Mitsubishi Denki Kabushiki Kaisha | Delivery valve for a scroll compressor |
| WO2011155176A1 (en) * | 2010-06-07 | 2011-12-15 | パナソニック株式会社 | Compressor |
| JPWO2011155176A1 (en) * | 2010-06-07 | 2013-08-01 | パナソニック株式会社 | Compressor |
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