JPS599108Y2 - Horizontally opposed compressor piston - Google Patents
Horizontally opposed compressor pistonInfo
- Publication number
- JPS599108Y2 JPS599108Y2 JP6845879U JP6845879U JPS599108Y2 JP S599108 Y2 JPS599108 Y2 JP S599108Y2 JP 6845879 U JP6845879 U JP 6845879U JP 6845879 U JP6845879 U JP 6845879U JP S599108 Y2 JPS599108 Y2 JP S599108Y2
- Authority
- JP
- Japan
- Prior art keywords
- piston
- sliding hole
- side plates
- piston body
- crankshaft
- 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
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- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
【考案の詳細な説明】
本考案は、双頭状のピストンをシリンダ内で往復動させ
る水平対向型圧縮機のピストン構造に関する。[Detailed Description of the Invention] The present invention relates to a piston structure for a horizontally opposed compressor in which a double-headed piston reciprocates within a cylinder.
水平対向型圧縮機は、第１図ないし第３図に示すように
、シリンダ７内に滑合した双頭状のピストン９が、該ピ
ストン中間部分をピストン軸線と直角な方向に貫通する
クランク軸２の回転により、該クランク軸２の偏心部３
ａおよび偏心部３ｂの外周に滑合したスライダ４ａ，４
ｂおよび５ａ，５ｂで往復動されることにより、吸入ガ
スを圧縮し吐出する。As shown in FIGS. 1 to 3, the horizontally opposed compressor has a double-headed piston 9 that is slidably fitted into a cylinder 7, and a crankshaft 2 that passes through an intermediate portion of the piston in a direction perpendicular to the piston axis. Due to the rotation of the crankshaft 2, the eccentric portion 3 of the crankshaft 2
sliders 4a, 4 that are slidably fitted on the outer periphery of the eccentric portion 3b
b, 5a, and 5b reciprocate to compress and discharge the suction gas.
このような水平対向型圧縮機をカークーラ用の冷媒圧縮
機として使用する場合、圧縮機はエンジンルーム内に装
着されるなどの理由により小型、軽量で耐久性に優れる
ことが要求される。When such a horizontally opposed compressor is used as a refrigerant compressor for a car cooler, the compressor is required to be small, lightweight, and durable because it is installed in an engine room.
そのため圧縮機に使用される双頭状のピストンも、ある
特定のピストン径とピストンストロークの条件の基で、
ピストン全長を可能な限り短くして圧縮機を小型化する
とともに、軽量で剛性がありかつスライダを円滑に作動
せしめ得、しかも容易に高精度に加工できることが要求
される。Therefore, the double-headed piston used in compressors can also be used under certain piston diameter and piston stroke conditions.
In addition to reducing the overall length of the piston as much as possible to make the compressor smaller, it is also required that the piston be lightweight and rigid, that the slider can operate smoothly, and that it can be easily machined with high precision.
そこで本考案は、双頭状のピストンに対する上記要求な
どに基づいて行なわれたもので、その特徴は、双頭状の
ピストンのクランク軸が貫通する摺動孔の貫通方向前後
面に切欠き平面を設けるとともに、その切欠き平面に摺
動孔対向面に逃がし溝および中央部に貫通孔が形或され
た側板を適合せしめたことなどにある。Therefore, the present invention was developed based on the above-mentioned requirements for a double-headed piston, and its feature is that the sliding hole through which the crankshaft of the double-headed piston passes through has cutout planes on the front and rear surfaces in the penetrating direction. In addition, a side plate having a relief groove formed on the surface facing the sliding hole and a through hole formed in the center thereof is fitted to the notch plane.
以下本考案の実施例のその構或を図面によって説明する
。The structure of an embodiment of the present invention will be explained below with reference to the drawings.
第１図ないし第３図は、本考案による双頭状のピストン
９が装着された水平対向型圧縮機１を表わすものである
。1 to 3 show a horizontally opposed compressor 1 equipped with a double-headed piston 9 according to the present invention.
図において２はクランク軸で、軸上に２個所の偏心部３
ａ，３ｂが円周方向に１８０゜の位相差をもって形或さ
れている。In the figure, 2 is the crankshaft, and there are two eccentric parts 3 on the shaft.
a and 3b are shaped with a phase difference of 180° in the circumferential direction.
４ａおよび４ｂ，５ａおよび５ｂは、それぞれ一対の分
割スライダで、前記クランク偏心部３ａ，３ｂに対し摺
動可能に該クランク偏心部３ａ，３ｂを挾むようにして
保持してある。4a and 4b, 5a and 5b are a pair of divided sliders, respectively, and are held so as to be able to slide relative to the crank eccentric parts 3a and 3b so as to sandwich the crank eccentric parts 3a and 3b.
このスライダ４ａおよび４ｂ，５ａおよび５ｂは、クラ
ンク偏心部３ａ，３ｂに摺動する内周側が半円筒状の円
筒面になっており、円筒面に相対する外周側がピストン
１０に摺動する平坦な平面８になっている。The sliders 4a and 4b, 5a and 5b have a semi-cylindrical cylindrical surface on the inner periphery that slides on the crank eccentric parts 3a and 3b, and a flat cylindrical surface that slides on the piston 10 on the outer periphery facing the cylindrical surface. The plane is 8.
６はシリンダブロックで、ピストン９を滑動自在に挿通
する２つの並列なシリンダ７，７が貫通して形或されて
いる。Reference numeral 6 denotes a cylinder block, through which two parallel cylinders 7, 7, into which the piston 9 is slidably inserted, are formed.
ピストン９は、第４図ないし第６図でより明らかなよう
に、軸線方向の両端に互に外方に向けられたピストン頭
部１１，１２を一体に形或された双頭状のピストン本体
１０と、ピストン本体１０の外周側面に対向配置された
２枚の側板１６，１７とによって構或されている。As more clearly seen in FIGS. 4 to 6, the piston 9 has a double-headed piston body 10 that is integrally formed with piston heads 11 and 12 that are directed outward from each other at both ends in the axial direction. and two side plates 16 and 17 arranged opposite to each other on the outer peripheral side surface of the piston body 10.
ピストン本体１０には、両ピストン頭部間の中央部に該
ピストン本体１０をピストン軸線と直角方向に貫通する
スライダ４ａ，４ｂ，５ａ，５ｂの摺動孔１３が形威さ
れている。The piston body 10 has slide holes 13 for sliders 4a, 4b, 5a, and 5b that pass through the piston body 10 in a direction perpendicular to the piston axis at the center between both piston heads.
この摺動孔１３の内周面のうち、両ピストン頭部１１．
１２の内側対向面となる対向面はスライダ４ａ，
４ｂ， ５ａ， ５ｂ（７）外周乎面８が滑合する
１対の平行面２１， ２２に形或され、他方の径方向の
対向面はスライダ４ａ，４ｂ，５ａ，５ｂの側面がスラ
イダ運動中に接触しないようスライダ側面と適当に隔て
られた位置で対向している。Of the inner peripheral surface of this sliding hole 13, both piston heads 11.
The opposing surface that is the inner opposing surface of 12 is the slider 4a,
4b, 5a, 5b (7) The outer circumferential surface 8 is shaped into a pair of parallel surfaces 21, 22 that slide together, and the other radially opposing surface is formed so that the side surfaces of the sliders 4a, 4b, 5a, and 5b are shaped so that the slider moves. It faces the side surface of the slider at an appropriate distance so that it does not come into contact with the inside.
またピストン本体１０には、摺動孔１３の貫通方向前後
面に摺動孔と直角方向の切欠き平面１４．１５が両ピス
トン頭部１１． １２の先端付近まで形或されている。Further, in the piston body 10, cutout planes 14, 15 are provided on the front and rear surfaces in the penetrating direction of the sliding hole 13 in a direction perpendicular to the sliding hole. It is shaped to near the tip of 12.
すなわち切欠き平面１４． １５は、ピストン本体１０
の外周側面に側板１６， １７を装着した際にも、側板
１６， １７がピストン頭部円周より突出せぬよう、ピ
ストン本体１０の外周側面を切り欠いて１対の平行面を
設けるように形或される。That is, the notch plane 14. 15 is the piston body 10
In order to prevent the side plates 16, 17 from protruding beyond the circumference of the piston head even when the side plates 16, 17 are attached to the outer circumferential side of the piston body 10, a pair of parallel surfaces are provided by cutting out the outer circumferential side of the piston body 10. be shaped.
さらにまた、ピストン本体１０は、前述したように両ピ
ストン頭部１１， １２が摺動孔１３の半径方向側面に
残された脚柱２３， ２４により一体に連結されている
。Furthermore, in the piston body 10, both piston heads 11 and 12 are integrally connected by pillars 23 and 24 left on the radial side surface of the sliding hole 13, as described above.
ピストン本体１０に装着される側板１６， １７は、ピ
ストン軸線方向の長さが平行面２１．２２間の長さより
大きく、それと直角方向の巾が切欠き平面１４． １５
の巾と同等以下の平板状である。The side plates 16 and 17 attached to the piston body 10 have a length in the piston axial direction that is greater than the length between the parallel surfaces 21 and 22, and a width perpendicular to the length between the parallel surfaces 21 and 22 that is the width of the notched plane 14. 15
It is a flat plate with a width equal to or less than the width of .
この側板１６，１７には、摺動孔１３に貫通方向で対向
する対向側面に前記摺動孔１３のピストン軸線方向の長
さより同方向の長さが短かい逃がし溝２５、および中央
部に摺動孔１３より小さなクランク軸２貫通用の貫通孔
１８， １９が形或されている。The side plates 16 and 17 have a relief groove 25 on opposite sides facing the sliding hole 13 in the penetrating direction, the length of which is shorter in the same direction than the length of the sliding hole 13 in the piston axial direction, and a sliding groove in the center part. Through holes 18 and 19 are formed to allow the crankshaft 2 to pass through, which are smaller than the moving hole 13.
なお、クランク軸の形状によっては、クランク軸のアー
ム部２ａに対応させて、貫通孔１８， １９のピストン
軸線方向周縁に外方に向けて広がる斜面を設けて、クラ
ンク軸２と側板１６， １７との不要な接触を防止する
。Note that depending on the shape of the crankshaft, a slope that widens outward may be provided on the periphery of the through holes 18 and 19 in the piston axial direction to correspond to the arm portion 2a of the crankshaft, so that the crankshaft 2 and the side plates 16 and 17 can be connected to each other. Prevent unnecessary contact with.
この側板１６， １７は、貫通孔１８， １９を摺動孔
１３に同心的に合わせてピストン本体１０の切欠き平面
１４． １５に適合され、該側板１６， １７のピスト
ン軸線方向両端側を両ピストン頭部１１， １２にネジ
２０， ２０， ２０で゛固定されている。The side plates 16 and 17 align the through holes 18 and 19 concentrically with the sliding hole 13 and form the cutout plane 14 of the piston body 10. 15, and both ends of the side plates 16, 17 in the piston axial direction are fixed to both piston heads 11, 12 with screws 20, 20, 20.
そのため、側板１６， １７の貫通孔１８， １９の周
縁は、摺動孔１３の周縁よりも貫通孔中心の近く、すな
わち摺動孔１３の内径側に位置し、また当然側板１６．
１７の逃がし溝２５も摺動孔１３の内径側に位置して
互に反対側の逃がし溝２５と対向する。Therefore, the circumferential edges of the through holes 18 and 19 of the side plates 16 and 17 are located closer to the center of the through hole than the circumferential edge of the sliding hole 13, that is, on the inner diameter side of the sliding hole 13.
The 17 relief grooves 25 are also located on the inner diameter side of the sliding hole 13 and face the relief grooves 25 on opposite sides.
つぎにピストン９の加工および組立などについて説明す
ると、ピストン本体１０は、例えばアルミダイキャスト
により１体に戒形し、その後、１体のまま頭部１１，
１２の外周を研削し、摺動孔１３内の平行面２１．２２
をブローチ加工するなど戊形時に設けられた仕上げ代を
取除いて仕上げられる。Next, the processing and assembly of the piston 9 will be explained. The piston body 10 is formed into one piece by aluminum die-casting, for example, and then the head 11,
The outer periphery of 12 is ground, and the parallel surfaces 21 and 22 in the sliding hole 13 are
It can be finished by removing the finishing allowance created during shaping, such as by broaching.
したがって両ピストン頭部が１体に形威されていないも
のに比べて、両ピストン頭部１１． １２の同心度およ
び平行面２１，２２の平行度など高い加工精度を容易に
得ることができる。Therefore, compared to a case where both piston heads are not integrated into one body, both piston heads are 11. High processing accuracy such as concentricity of 12 and parallelism of parallel surfaces 21 and 22 can be easily obtained.
側板１６， １７は、例えばアルミダイキャストにより
或形し、その後に逃がし溝２５が凹まされて形威されて
いる面の逃がし溝２５を除く面を研削するなど戊形時に
設けられた仕上げ代を取除いて仕上げられる。The side plates 16 and 17 are formed, for example, by aluminum die-casting, and then the finishing allowance provided at the time of forming is removed by grinding the surface other than the relief groove 25 on which the relief groove 25 is formed. Removed and finished.
このようにして作られた側板１６， １７は、シリンダ
７にピストン本体１０を挿入する前に一方１７がピスト
ン本体１０にネジ２０で装着され、他方１６はシリンダ
７に挿入されたピストン本体１０にクランク軸２が貫挿
されかつ摺動孔１３内にスライダ４ａ，４ｂ，５ａ，５
ｂが挿入された後にピストン本体１０にネジ２０で装着
される。One of the side plates 16 and 17 made in this way is attached to the piston body 10 with screws 20 before the piston body 10 is inserted into the cylinder 7, and the other side plate 16 is attached to the piston body 10 inserted into the cylinder 7. The crankshaft 2 is inserted through the slide hole 13, and the sliders 4a, 4b, 5a, 5
After the piston b is inserted, it is attached to the piston body 10 with a screw 20.
このようにピストン本体１０に両側板１６， １７が装
着されることによりピストン９は、両頭部１１． １２
が脚部２３． ２４ばかりでなく側板１６． １７によ
っても連結されて、その剛性が著しく高められる。By attaching the side plates 16 and 17 to the piston body 10 in this manner, the piston 9 has both heads 11 . 12
is the leg 23. Not only 24 but also side plate 16. 17, which significantly increases its rigidity.
また、シリンダ７にピストン本体１０を挿入する際は、
側板１７がピストン頭部径の範囲内にあるため全く支障
なくシリンダ７の開口端がら挿入できる。Also, when inserting the piston body 10 into the cylinder 7,
Since the side plate 17 is within the diameter of the piston head, it can be inserted from the open end of the cylinder 7 without any problem.
この点従来の双頭状のピストンでは、双頭状ピストンの
強度を高めるために脚柱を太くしていたが、脚柱を摺動
孔の内側に太くするとスライダの運動量を狭めたり、ス
ライダの横巾を縮小しなければならない欠点があり、ま
た脚柱を摺動孔の外周側に太くするとその部分がシリン
ダ内に入り込めないのでピストン全長が長くなるととも
に、絹立の都合上シリンダブロックを分割型式にしなけ
ればならないなどの欠点がある。In this regard, in conventional double-headed pistons, the pillars were thickened to increase the strength of the double-headed piston, but if the pillars were made thicker inside the sliding hole, the momentum of the slider would be narrowed, and the width of the slider would be reduced. There is a disadvantage that the column must be reduced in size, and if the pillar is made thicker on the outer periphery of the sliding hole, that part cannot fit into the cylinder, so the overall length of the piston becomes longer. There are disadvantages such as having to
つぎに圧縮機の作動時について簡単に説明すると、まず
クランク軸２の回転により、偏心部３ａに滑合している
分割スライダ４ａ，４ｂがクランク軸２の軸心に対する
位置を変える。Next, the operation of the compressor will be briefly described. First, as the crankshaft 2 rotates, the divided sliders 4a and 4b, which are slidably engaged with the eccentric portion 3a, change their position with respect to the axis of the crankshaft 2.
分割スライダ４ａ，４ｂは、双頭状のピス１・ン９によ
ってクランク軸２に直角な方向の動きが規制され、ピス
トン９に対しては平行面２１，２２に沿った方向のみ変
化が許容される。The divided sliders 4a and 4b are restricted from moving in a direction perpendicular to the crankshaft 2 by the double-headed pistons 1 and 9, and are only allowed to change in the direction along parallel surfaces 21 and 22 relative to the piston 9. .
また、分割スライダ４ａ，４ｂのクランク軸２の軸線方
向への動きは、側板１６および１７によって制限されて
いるとともに、分割スライダ４ａ，４ｂの摺動孔１３か
らの逸脱も側板１６および１７によって制限されている
。Further, the movement of the divided sliders 4a, 4b in the axial direction of the crankshaft 2 is restricted by the side plates 16 and 17, and the deviation of the divided sliders 4a, 4b from the sliding hole 13 is also restricted by the side plates 16 and 17. has been done.
すなわち、側板１６， １７の対向面間に配置されたス
ライダ４ａ，４ｂは、クランク軸線方向の側面がクラン
ク軸２の回転にともなって側板１６，１７と軽く摺動す
るようになっている。That is, the sliders 4a and 4b, which are disposed between the opposing surfaces of the side plates 16 and 17, have their side surfaces in the crank axis direction lightly sliding on the side plates 16 and 17 as the crankshaft 2 rotates.
なお、側板１６， １７は、そのピストン軸線方向両端
側がそれぞれピストン頭部１１．１２にネジ止めされて
いるため、運転中に該側板１６， １７にスライダ４ａ
，４ｂが多少強く摺動しても、スライダ４ａ，４ｂの円
滑な運動を阻害するような変形を起すことがない。Note that the side plates 16 and 17 are screwed to the piston head 11.12 at both ends in the piston axial direction, so that the slider 4a is attached to the side plates 16 and 17 during operation.
, 4b slide somewhat strongly, no deformation occurs that would impede the smooth movement of the sliders 4a, 4b.
またクランク偏心部３は、クランク軸線方向の長さが同
方向の摺動孔１３の巾と同等かわずかに小さく形或され
ているとともに、側板１６， １７には該偏心部側面と
の接触を防止する逃がし溝２５が形或されているため、
圧縮機構戒部品の加工寸法のバラツキがあっても、側板
１６， １７に接触することなく回転で゛きる。Further, the crank eccentric part 3 has a length in the direction of the crank axis that is equal to or slightly smaller than the width of the sliding hole 13 in the same direction, and the side plates 16 and 17 have a shape that makes contact with the side surface of the eccentric part. Since the relief groove 25 is formed to prevent
Even if there are variations in the machining dimensions of the compression mechanism parts, they can rotate without coming into contact with the side plates 16, 17.
さらにまたピストン９は、側板１６， １７によってス
ライダ４ａ，４ｂの案内をすることにより、ピストン９
自身がピストン中心軸線に対して回動しなくなる。Furthermore, the piston 9 is moved by guiding the sliders 4a and 4b by the side plates 16 and 17.
The piston itself no longer rotates with respect to the center axis of the piston.
そのため、従来のようにクランク軸２にピストンの摺動
孔１３の周縁が接触してビストンの脚柱２３， ２４が
破損してしまうなどの事故が皆無となる。Therefore, there is no accident such as the periphery of the sliding hole 13 of the piston coming into contact with the crankshaft 2 and damaging the piston pillars 23 and 24 as in the conventional case.
一方ピストン９はシリンダ７に滑合しているので、クラ
ンク偏心部３の回転にともないスライダ４ａ，４ｂによ
りシリンダ７内を往復運動して、シリンダ７内の圧縮空
間に交互に流体を吸入した後、吐出弁を開弁させて吐出
する。On the other hand, since the piston 9 is slidably fitted to the cylinder 7, as the crank eccentric part 3 rotates, the sliders 4a and 4b move reciprocally within the cylinder 7, alternately sucking fluid into the compression space within the cylinder 7. , the discharge valve is opened to discharge.
なお、上記実施例においては、両側の側板とも一体のも
のについて説明したが、側板はピストン軸線方向の左右
に二分割されているものを用いても良い。In the above embodiment, the side plates on both sides are integrated, but the side plates may be divided into two parts on the left and right sides in the piston axis direction.
以上のように本考案は、側板を別体にし、ピストン本体
を１体にしたので高精度に容易に加工でき、また双頭状
のピストン本体の中央部外周側面を切欠いてピストン頭
部径の範囲内に側板を取付けたのでスライダ運動量を小
さくしたりピストン全長を長くしたりすることがなくか
つピストンのシリンダブロックへの組付けも容易となり
、およびまた側板の摺動孔対向側面にクランク軸偏心部
側面との接触を防止する逃がし溝を設けたので、側板の
加工仕上げ面積が減少するばかりでなくスライダと側板
および偏心部と側板の不要な接触を防止して駆動力損失
を少なくし、さらにまた側板のピストン軸線方向両端を
それぞれピストン頭部に固定したので脚部が補強されて
ピストン剛性が高まるとともに側板の変形も生ぜずスラ
イダの円滑な運動を阻害することが無く、あわせてスラ
イダの逸脱を防止でき、しかも圧縮機を小型、軽量にで
きるなどの効果がある。As described above, the present invention separates the side plates and integrates the piston body into one body, making it easy to process with high precision.In addition, the outer circumferential side of the central part of the double-headed piston body is cut out to accommodate a range of piston head diameters. Since the side plate is installed inside, there is no need to reduce the slider momentum or increase the overall length of the piston, and the piston can be easily assembled to the cylinder block.In addition, the crankshaft eccentric part is installed on the side surface opposite the sliding hole of the side plate. By providing relief grooves to prevent contact with the side surfaces, not only does the finished area of the side plates decrease, but unnecessary contact between the slider and the side plates and between the eccentric part and the side plates is prevented, reducing driving force loss. Since both ends of the side plate in the piston axis direction are fixed to the piston head, the legs are reinforced and the piston rigidity is increased, and the side plate does not deform and the smooth movement of the slider is not hindered. This has the effect of making the compressor smaller and lighter.
図面は本考案の実施例を表わすもので、第１図は双頭状
のピストンが装着された水平対向型圧縮機の（第２図の
Ｉ−Ｉ断面を表わす）断面正面図。
第２図は第１図のＩＩ 一ＩＩ断面を表わす断面平面図
。
第３図は第２図と同一断面にしてピストンが移動された
状態を表わす説明図的断面平面図。
第４図はピストンの正面図。
第５図は第４図の■−■断面を表わす断面平面図。
第６図は第５図のＶＩ−ＶＩ断面を表わす断面側面図。
９・・・ピストン、１０・・・ピストン本体、１１．
１２・・・ピストン頭部、１３・・・（スライダ）摺動
孔、１４． １５・・・切欠き平面、１６， ｉ７・・
・側板、１８， １９・・・（クランク軸）貫通孔、２
５・・・逃がし溝。The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional front view (representing the section II in FIG. 2) of a horizontally opposed compressor equipped with a double-headed piston. FIG. 2 is a cross-sectional plan view showing the section II-III of FIG. 1. FIG. 3 is an explanatory cross-sectional plan view showing a state in which the piston has been moved, with the same cross-section as that in FIG. 2; Figure 4 is a front view of the piston. FIG. 5 is a cross-sectional plan view taken along the line ■--■ in FIG. FIG. 6 is a cross-sectional side view showing the VI-VI cross section of FIG. 5. 9... Piston, 10... Piston body, 11.
12... Piston head, 13... (slider) sliding hole, 14. 15... Notch plane, 16, i7...
・Side plate, 18, 19... (crankshaft) through hole, 2
5...Escape groove.
Claims (1)
１．１２が一体に形威された双頭状のピストン本体１０
、そのピストン本体１０の両ピストン頭部１１， １２
間の中央部に該ピストン本体１０をピストン軸線と直角
方向に貫通する摺動孔１３を設け、かつ該ピストン本体
１０の摺動孔１３の貫通方向前後面に摺動孔１３と直角
方向の切欠き千面１４， １５を設け、また前記摺動孔
１３に貫通方向で対向する対向側面に前記摺動孔１３の
ピストン軸線方向の長さより同方向の長さが短かい逃が
し溝２５が設けられた平板状の側板１６， １７、その
側板１６， １７の中央部に形或された前記摺動孔１３
より小さな貫通孔１８， １９を前記摺動孔１３に同心
的に合わせ、該側板１６，１７のピストン軸線方向両端
側を両ピストン頭部１１，１２に固定したことを特徴と
する水平対向型圧縮機のピストン。Piston heads 1 directed outward from each other at both axial ends
A double-headed piston body 10 in which 1.12 is integrally formed.
, both piston heads 11 and 12 of the piston body 10
A sliding hole 13 passing through the piston body 10 in a direction perpendicular to the piston axis is provided in the center between the two, and cuts perpendicular to the sliding hole 13 are provided on the front and rear surfaces of the piston body 10 in the penetrating direction of the sliding hole 13. Notches 14 and 15 are provided, and a relief groove 25 whose length in the piston axial direction is shorter than the length of the sliding hole 13 in the piston axial direction is provided on the opposing side surface facing the sliding hole 13 in the penetrating direction. flat side plates 16 and 17, and the sliding hole 13 formed in the center of the side plates 16 and 17;
A horizontally opposed compression type characterized in that smaller through holes 18 and 19 are concentrically aligned with the sliding hole 13, and both ends of the side plates 16 and 17 in the piston axial direction are fixed to both piston heads 11 and 12. machine piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6845879U JPS599108Y2 (en) | 1979-05-21 | 1979-05-21 | Horizontally opposed compressor piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6845879U JPS599108Y2 (en) | 1979-05-21 | 1979-05-21 | Horizontally opposed compressor piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55167576U JPS55167576U (en) | 1980-12-02 |
| JPS599108Y2 true JPS599108Y2 (en) | 1984-03-22 |
Family
ID=29302325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6845879U Expired JPS599108Y2 (en) | 1979-05-21 | 1979-05-21 | Horizontally opposed compressor piston |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599108Y2 (en) |
-
1979
- 1979-05-21 JP JP6845879U patent/JPS599108Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55167576U (en) | 1980-12-02 |
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