JP2006283747A - Refrigerating compressor - Google Patents

Refrigerating compressor Download PDF

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JP2006283747A
JP2006283747A JP2005170189A JP2005170189A JP2006283747A JP 2006283747 A JP2006283747 A JP 2006283747A JP 2005170189 A JP2005170189 A JP 2005170189A JP 2005170189 A JP2005170189 A JP 2005170189A JP 2006283747 A JP2006283747 A JP 2006283747A
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rotating shaft
boss portion
shaft
housing
seal device
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Takashi Fukumuro
貴士 福室
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Sanden Corp
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Sanden Corp
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  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerating compressor which has a rotating shaft, a compression mechanism driven by the rotating shaft, a housing for storing the rotating shaft and the compression mechanism, and a shaft sealing device arranged between a housing boss part and the rotating shaft penetrating through the boss part, and can more effectively inhibit leakage of gaseous refrigerant to outside of the housing, compared to conventional products. <P>SOLUTION: This refrigerating compressor is provided with the rotating shaft, the compression mechanism driven by the rotating shaft, the housing for storing the rotating shaft and the compression mechanism, the shaft sealing device arranged between the housing boss part and the rotating shaft penetrating through the boss part, and a rotational body fixed to a tip part of the rotating shaft and rotated and driven by an external power source. The rotational body has a boss part which is inserted into the housing boss part and into which the tip part of the rotating shaft is inserted, and a second shaft sealing device is arranged at an annular gap between the housing boss part and the rotational body boss part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、冷媒ガス圧縮機に関するものである。 The present invention relates to a refrigerant gas compressor.

回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、ハウジングボス部と当該ボス部を貫通する回転軸との間に配設された軸封装置とを備える冷媒ガス圧縮機が特許文献１等に開示されている。
特開２００３−２４６９７６ A rotating shaft, a compression mechanism driven by the rotating shaft, a housing that houses the rotating shaft and the compression mechanism, and a shaft seal device disposed between the housing boss portion and the rotating shaft that passes through the boss portion; A refrigerant gas compressor including the above is disclosed in Patent Document 1 and the like.
JP 2003-246976 A

回転軸のハウジング貫通部を介する冷媒ガスのハウジング外への漏洩は、当該貫通部に配設された軸封装置により阻止されているが、軸封装置は冷媒ガスのハウジング外への漏洩を完全に阻止できるものではない。
本発明は上記問題に鑑みてなされたものであり、回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、ハウジングボス部と当該ボス部を貫通する回転軸との間に配設された軸封装置とを備える冷媒ガス圧縮機であって、冷媒ガスのハウジング外への漏洩を従来に比べて、より効果的に阻止できる冷媒ガス圧縮機を提供することを目的とする。 Leakage of the refrigerant gas to the outside of the housing through the housing through portion of the rotating shaft is prevented by the shaft seal device disposed in the through portion, but the shaft seal device completely leaks the refrigerant gas to the outside of the housing. It cannot be prevented.
The present invention has been made in view of the above problems, and includes a rotation shaft, a compression mechanism driven by the rotation shaft, a housing that accommodates the rotation shaft and the compression mechanism, a housing boss portion, and the boss portion. Provided is a refrigerant gas compressor including a shaft seal device disposed between a rotating shaft and a refrigerant gas compressor capable of more effectively preventing leakage of the refrigerant gas to the outside of the housing. The purpose is to do.

上記課題を解決するために、本発明においては、回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、ハウジングボス部と当該ボス部を貫通する回転軸との間に配設された軸封装置と、回転軸先端部に固定され外部駆動源により回転駆動される回転体とを備え、回転体はハウジングボス部に挿入されると共に回転軸先端部が挿入されるボス部を有し、ハウジングボス部と回転体ボス部との間の環状隙間に第２軸封装置が配設されていることを特徴とする冷媒ガス圧縮機を提供する。
本発明に係る冷媒ガス圧縮機においては、ハウジングボス部と当該ボス部を貫通する回転軸との間に配設された軸封装置から僅かに漏れ出た冷媒ガスのハウジング外へ漏洩は、回転軸先端部に固定され外部駆動源により回転駆動される回転体のボス部とハウジングボス部との間の環状隙間に配設された第２軸封装置により阻止される。従って本発明に係る冷媒ガス圧縮機においては、冷媒ガスのハウジング外への漏洩が従来に比べてより効果的に阻止される。 In order to solve the above problems, in the present invention, a rotating shaft, a compression mechanism driven by the rotating shaft, a housing that houses the rotating shaft and the compression mechanism, a housing boss portion, and a rotation that passes through the boss portion A shaft seal device disposed between the shaft and a rotating body fixed to the tip of the rotating shaft and driven to rotate by an external drive source, the rotating body being inserted into the housing boss and the tip of the rotating shaft A refrigerant gas compressor is provided in which a second shaft seal device is disposed in an annular gap between a housing boss portion and a rotating body boss portion.
In the refrigerant gas compressor according to the present invention, the leakage of the refrigerant gas slightly leaked from the shaft seal device disposed between the housing boss portion and the rotating shaft passing through the boss portion is rotated. It is blocked by a second shaft sealing device disposed in an annular gap between the boss portion of the rotating body and the housing boss portion, which is fixed to the shaft tip portion and driven to rotate by an external drive source. Therefore, in the refrigerant gas compressor according to the present invention, leakage of the refrigerant gas to the outside of the housing is more effectively prevented as compared with the conventional case.

本発明の好ましい態様においては、回転体ボス部と当該ボス部に挿入された回転体先端部との間にシール部材が配設されている。
回転体ボス部と当該ボス部に挿入された回転体先端部との間に配設されたシール部材により、ハウジングボス部と当該ボス部を貫通する回転軸との間に配設された軸封装置から僅かに漏れ出た冷媒ガスが、回転体ボス部と当該ボス部に挿入された回転体先端部との間の隙間を通ってハウジング外へ漏洩する事態の発生が阻止される。この結果、冷媒ガスのハウジング外への漏洩がより効果的に阻止される。 In a preferred aspect of the present invention, a seal member is disposed between the rotating body boss portion and the rotating body tip portion inserted into the boss portion.
A shaft seal disposed between the housing boss portion and the rotating shaft penetrating the boss portion by a seal member disposed between the rotator boss portion and the distal end portion of the rotator inserted into the boss portion. Occurrence of a situation in which the refrigerant gas slightly leaking from the apparatus leaks out of the housing through a gap between the rotating body boss portion and the rotating body tip portion inserted into the boss portion is prevented. As a result, leakage of the refrigerant gas to the outside of the housing is more effectively prevented.

本発明の好ましい態様においては、軸封装置と第２軸封装置との間に潤滑剤が配設されている。
軸封装置と第２軸封装置との間に潤滑剤が配設されることにより、第２軸封装置が潤滑され、第２軸封装置のシール材の磨耗が抑制される。 In a preferred aspect of the present invention, a lubricant is disposed between the shaft seal device and the second shaft seal device.
By disposing the lubricant between the shaft seal device and the second shaft seal device, the second shaft seal device is lubricated and wear of the sealing material of the second shaft seal device is suppressed.

本発明の好ましい態様においては、軸封装置と第２軸封装置との間に冷媒吸着剤が配設されている。
軸封装置と第２軸封装置との間に冷媒吸着剤が配設されることにより、冷媒ガスのハウジング外への漏洩が更に効果的に阻止される。 In a preferred aspect of the present invention, a refrigerant adsorbent is disposed between the shaft seal device and the second shaft seal device.
By disposing the refrigerant adsorbent between the shaft seal device and the second shaft seal device, leakage of the refrigerant gas to the outside of the housing is further effectively prevented.

本発明に係る冷媒ガス圧縮機においては、ハウジングボス部と当該ボス部を貫通する回転軸との間に配設された軸封装置から僅かに漏れ出た冷媒ガスのハウジング外へ漏洩は、回転軸先端部に固定され外部駆動源により回転駆動される回転体のボス部とハウジングボス部との間の環状隙間に配設された第２軸封装置により阻止される。従って本発明に係る冷媒ガス圧縮機においては、冷媒ガスのハウジング外への漏洩が従来に比べてより効果的に阻止される。 In the refrigerant gas compressor according to the present invention, the leakage of the refrigerant gas slightly leaked from the shaft seal device disposed between the housing boss portion and the rotating shaft passing through the boss portion is rotated. It is blocked by a second shaft sealing device disposed in an annular gap between the boss portion of the rotating body and the housing boss portion, which is fixed to the shaft tip portion and driven to rotate by an external drive source. Therefore, in the refrigerant gas compressor according to the present invention, leakage of the refrigerant gas to the outside of the housing is more effectively prevented as compared with the conventional case.

本発明の実施例に係る斜板式冷媒ガス圧縮機を説明する。 A swash plate type refrigerant gas compressor according to an embodiment of the present invention will be described.

図１に示すように、冷媒ガスを吸入圧縮する可変容量型斜板式圧縮機Ａは、回転軸１０と、回転軸１０に固定されたローター１１と、傾角可変に回転軸１０に支持された斜板１２とを備えている。斜板１２は、斜板１２の傾角変動を許容するリンク機構１３を介してローター１１に連結され、ローター１１ひいては回転軸１０に同期して回転する。
斜板１２の周縁部に摺接する一対のシュー１４を介してピストン１５が斜板１２に係留されている。
ピストン１５は、シリンダブロック１６に形成されたボア１６ａに挿入されている。
ローター１１、斜板１２、シュー１４、ピストン１５は、回転軸１０により駆動される圧縮機構を構成している。
回転軸１０、ローター１１、斜板１２を収容するクランク室１７を形成する有底円筒状のフロントハウジング１８が配設されている。回転軸１０は、フロントハウジング１８のボス部１８ａを貫通して外部へ延びている。
フロントハウジングのボス部１８ａと当該ボス部を貫通する回転軸１０との間の環状隙間に回転軸貫通部を密封する軸封装置１９が配設されている。 As shown in FIG. 1, a variable capacity swash plate compressor A for sucking and compressing refrigerant gas includes a rotating shaft 10, a rotor 11 fixed to the rotating shaft 10, and a tilting shaft supported by the rotating shaft 10 with a variable tilt angle. And a plate 12. The swash plate 12 is connected to the rotor 11 via a link mechanism 13 that allows the tilt angle of the swash plate 12 to vary, and rotates in synchronization with the rotor 11 and thus the rotating shaft 10.
A piston 15 is moored to the swash plate 12 via a pair of shoes 14 that are in sliding contact with the peripheral edge of the swash plate 12.
The piston 15 is inserted into a bore 16 a formed in the cylinder block 16.
The rotor 11, the swash plate 12, the shoe 14, and the piston 15 constitute a compression mechanism that is driven by the rotary shaft 10.
A bottomed cylindrical front housing 18 that forms a crank chamber 17 that houses the rotating shaft 10, the rotor 11, and the swash plate 12 is disposed. The rotating shaft 10 extends outside through the boss portion 18a of the front housing 18.
A shaft seal device 19 for sealing the rotating shaft penetrating portion is disposed in an annular gap between the boss portion 18a of the front housing and the rotating shaft 10 penetrating the boss portion.

フロントハウジング１８に取りつけられた電磁クラッチ２０のアーマチュア２１にボス部２１ａが形成されている。ボス部２１ａはフロントハウジングのボス部１８ａに挿入されると共に、ボス部２１ａに回転軸１０の先端部１０ａが挿入されている。フロントハウジングのボス部１８ａとアーマチュアのボス部２１ａとの間の環状隙間に、且つ軸封装置１９よりもフロントハウジング外側に第２軸封装置２２が配設されている。
第２軸封装置２２は、図２に示すように、リップシール部材２２ａと、リップシール部材２２ａを保持固定する保持金具２２ｂ、２２ｃとを有している。フロントハウジングのボス部１８ａに係止されたスナップリング２３が、ボス部１８ａからの第２軸封装置２２の脱落を防止している。リップシール部材２２ａの外周縁部はボス部１８ａの内周面に当接して、リップシール部材２２ａとボス部１８ａとの間の隙間からの冷媒ガスの漏洩を防止し、リップシール部材２２ａの内周縁部は回転軸１０に当接して、リップシール部材２２ａと回転軸１０との間の隙間からの冷媒ガスの漏洩を防止している。リップシール部材２２ａは耐冷媒ガス透過性と耐磨耗性とに優れる水素化二トリルゴム（HNBR）又はフッ素樹脂を主体に配合された素材により形成されている。 A boss portion 21 a is formed on the armature 21 of the electromagnetic clutch 20 attached to the front housing 18. The boss portion 21a is inserted into the boss portion 18a of the front housing, and the tip portion 10a of the rotating shaft 10 is inserted into the boss portion 21a. A second shaft seal device 22 is disposed in the annular gap between the boss portion 18 a of the front housing and the boss portion 21 a of the armature and outside the shaft seal device 19.
As shown in FIG. 2, the second shaft seal device 22 has a lip seal member 22a and holding metal fittings 22b and 22c for holding and fixing the lip seal member 22a. A snap ring 23 locked to the boss portion 18a of the front housing prevents the second shaft seal device 22 from falling off the boss portion 18a. The outer peripheral edge of the lip seal member 22a is in contact with the inner peripheral surface of the boss portion 18a to prevent leakage of refrigerant gas from the gap between the lip seal member 22a and the boss portion 18a. The peripheral edge is in contact with the rotating shaft 10 to prevent leakage of the refrigerant gas from the gap between the lip seal member 22a and the rotating shaft 10. The lip seal member 22a is made of a material mainly composed of hydrogenated nitrile rubber (HNBR) or fluorine resin, which is excellent in refrigerant gas permeation resistance and wear resistance.

アーマチュアのボス部２１ａと回転軸１０の先端部１０ａとが、セレーション結合又はスプライン結合し、回転軸１０の先端部１０ａから更に突出する先端小径部１０ｂがアーマチュアのボス部２１ａ貫通し、当該先端小径部１０ｂにナット２４が螺合して、ナット２４の座面がアーマチュア２１のボス部端面に押し付けられることにより、アーマチュア２１は回転軸１０先端部１０ａに固定されている。前記先端小径部１０ｂとアーマチュアのボス部２１ａとの間の環状隙間にＯリング２５が配設されている。Ｏリング２５は耐冷媒ガス透過性に優れる水素化二トリルゴム（HNBR）を主体に配合された素材により形成されている。
図示しない外部駆動源から電磁クラッチのアーマチュア２１を介して回転軸１０に回転動力が伝達される。 The boss portion 21a of the armature and the tip portion 10a of the rotary shaft 10 are serrated or splined, and the tip small diameter portion 10b further protruding from the tip portion 10a of the rotary shaft 10 penetrates the boss portion 21a of the armature, and the tip small diameter. The nut 24 is screwed into the portion 10b, and the seat surface of the nut 24 is pressed against the end surface of the boss portion of the armature 21, whereby the armature 21 is fixed to the distal end portion 10a of the rotary shaft 10. An O-ring 25 is disposed in an annular gap between the tip small diameter portion 10b and the armature boss portion 21a. The O-ring 25 is made of a material mainly composed of hydrogenated nitrile rubber (HNBR) having excellent refrigerant gas permeability resistance.
Rotational power is transmitted to the rotary shaft 10 from an external drive source (not shown) through an armature 21 of an electromagnetic clutch.

図１に示すように、吸入室と吐出室とを形成するシリンダヘッド２６が配設されている。
シリンダブロック１６とシリンダヘッド２６との間にボア１６ａに連通する吸入穴と吐出穴とが形成された弁板２７が配設されている。
フロントハウジング１８、シリンダブロック１６、弁板２７、シリンダヘッド２６は、ボルト２８により一体に組み付けられている。フロントハウジング１８、シリンダブロック１６、弁板２７、シリンダヘッド２６は回転軸１０と回転軸１０により駆動される圧縮機構とを収容するハウジングを形成している。
フロントハウジング１８とシリンダブロック１６との間、シリンダブロック１６と弁板２７との間、弁板２７とシリンダヘッド２６との間に、ガスケット２９、３０、３１が配設されている。
回転軸１０はフロントハウジング１８、シリンダブロック１６により回転可能に支持されている。 As shown in FIG. 1, a cylinder head 26 that forms a suction chamber and a discharge chamber is disposed.
A valve plate 27 having a suction hole and a discharge hole communicating with the bore 16a is disposed between the cylinder block 16 and the cylinder head 26.
The front housing 18, the cylinder block 16, the valve plate 27 and the cylinder head 26 are assembled together by bolts 28. The front housing 18, the cylinder block 16, the valve plate 27, and the cylinder head 26 form a housing that houses the rotating shaft 10 and a compression mechanism driven by the rotating shaft 10.
Gaskets 29, 30, and 31 are disposed between the front housing 18 and the cylinder block 16, between the cylinder block 16 and the valve plate 27, and between the valve plate 27 and the cylinder head 26.
The rotary shaft 10 is rotatably supported by a front housing 18 and a cylinder block 16.

可変容量型斜板式圧縮機Ａにおいては、図示しない外部駆動源の回転動力が電磁クラッチ２０のアーマチュア２１に伝達されてアーマチュア２１が回転し、アーマチュア２１の回転がセレーション結合部又はスプライン結合部を介して回転軸１０に伝達され、回転軸１０の回転がローター１１、リンク機構１３を介して斜板１２に伝達される。斜板１２の回転に伴う斜板１２周縁部の回転軸１０延在方向の往復動が、シュー１４を介してピストン１５に伝達され、ピストン１５がボア１６ａ内で往復動する。外部冷凍回路から還流した冷媒が、シリンダヘッド２６に形成された吸入ポートと吸入室と吸入穴と吸入弁とを介してボア１６ａへ吸入され、ボア１６ａ内で圧縮され、吐出穴と吐出弁と吐出室とシリンダヘッド２６に形成された吐出ポートとを介して外部冷凍回路へ流出する。
軸封装置１９、２２、Ｏリング２５、ガスケット２９〜３１により、可変容量型斜板式圧縮機Ａのハウジングからの冷媒ガスの漏洩が防止されている。 In the variable capacity swash plate compressor A, the rotational power of an external drive source (not shown) is transmitted to the armature 21 of the electromagnetic clutch 20 to rotate the armature 21, and the rotation of the armature 21 is performed via the serration coupling part or the spline coupling part. The rotation of the rotation shaft 10 is transmitted to the swash plate 12 via the rotor 11 and the link mechanism 13. The reciprocating motion in the extending direction of the rotating shaft 10 at the peripheral edge of the swash plate 12 accompanying the rotation of the swash plate 12 is transmitted to the piston 15 via the shoe 14, and the piston 15 reciprocates in the bore 16a. The refrigerant recirculated from the external refrigeration circuit is sucked into the bore 16a through a suction port, a suction chamber, a suction hole, and a suction valve formed in the cylinder head 26, and is compressed in the bore 16a. It flows out to the external refrigeration circuit through the discharge chamber and the discharge port formed in the cylinder head 26.
Leakage of refrigerant gas from the housing of the variable capacity swash plate compressor A is prevented by the shaft seal devices 19 and 22, the O-ring 25, and the gaskets 29 to 31.

可変容量型斜板式圧縮機Ａにおいては、フロントハウジングのボス部１８ａとボス部１８ａを貫通する回転軸１０との間の環状隙間に配設された軸封装置１９から僅かに漏れ出た冷媒ガスのハウジング外へ漏洩は、回転軸先端部１０ａに固定され外部駆動源により回転駆動されるアーマチュア２１のボス部２１ａとフロントハウジングのボス部１８ａとの間の環状隙間に配設された第２軸封装置２２により阻止される。従って可変容量型斜板式圧縮機Ａにおいては、冷媒ガスのハウジング外への漏洩が、第２軸封装置２２を有さない従来の冷媒ガス圧縮機に比べてより効果的に阻止される。 In the variable capacity swash plate compressor A, the refrigerant gas slightly leaked from the shaft seal device 19 disposed in the annular gap between the boss portion 18a of the front housing and the rotary shaft 10 passing through the boss portion 18a. Leakage out of the housing is a second shaft disposed in an annular gap between the boss portion 21a of the armature 21 and the boss portion 18a of the front housing, which is fixed to the rotary shaft tip portion 10a and driven to rotate by an external drive source. It is blocked by the sealing device 22. Therefore, in the variable capacity swash plate compressor A, the leakage of the refrigerant gas to the outside of the housing is prevented more effectively than the conventional refrigerant gas compressor that does not have the second shaft seal device 22.

可変容量型斜板式圧縮機Ａにおいては、アーマチュア２１のボス部２１ａとボス部２１ａに挿入された回転軸の小径先端部１０ｂとの間の環状隙間に配設されたＯリング２５により、フロントハウジングのボス部１８ａとボス部１８ａを貫通する回転軸１０との間の環状隙間に配設された軸封装置１９から僅かに漏れ出た冷媒ガスが、回転軸の小径先端部１０ｂとアーマチュア２１のボス部２１ａとの間の環状隙間を通ってハウジング外へ漏洩する事態の発生が阻止される。この結果、冷媒ガスのハウジング外への漏洩がより効果的に阻止される。 In the variable capacity swash plate compressor A, the front housing is provided by an O-ring 25 disposed in an annular gap between the boss portion 21a of the armature 21 and the small-diameter tip portion 10b of the rotating shaft inserted into the boss portion 21a. The refrigerant gas slightly leaking from the shaft seal device 19 disposed in the annular gap between the boss portion 18a and the rotary shaft 10 penetrating the boss portion 18a causes the small-diameter tip portion 10b of the rotary shaft and the armature 21 to Generation | occurrence | production of the situation which leaks out of a housing through the annular clearance between the boss | hub parts 21a is prevented. As a result, leakage of the refrigerant gas to the outside of the housing is more effectively prevented.

可変容量型斜板式圧縮機Ａにおいては、回転軸１０の先端部１０ａから更に突出する先端小径部１０ｂがアーマチュアのボス部２１ａを貫通し、当該先端小径部１０ｂにナット２４が螺合して、ナット２４の座面をアーマチュア２１のボス部端面に押し付けることにより、アーマチュア２１を回転軸１０先端部１０ａに固定したが、アーマチュアのボス部２１ａに挿入した回転軸先端部１０ａの端面に、アーマチュアのボス部２１ａを貫通するボルトを螺入させ、ボルト頭部の座面をアーマチュア２１のボス部端面に押し付けることにより、アーマチュア２１を回転軸１０先端部１０ａに固定しても良い。この場合には、Ｏリング２５は回転軸先端部１０ａの先端近傍部とアーマチュアのボス部２１ａとの間の環状隙間に配設することになる。 In the variable capacity swash plate compressor A, the tip small diameter portion 10b further protruding from the tip portion 10a of the rotating shaft 10 penetrates the boss portion 21a of the armature, and the nut 24 is screwed to the tip small diameter portion 10b. The armature 21 is fixed to the tip end portion 10a of the rotating shaft 10 by pressing the seating surface of the nut 24 against the end surface of the boss portion of the armature 21, but the armature 21 The armature 21 may be fixed to the distal end portion 10a of the rotating shaft 10 by screwing a bolt that penetrates the boss portion 21a and pressing the seating surface of the bolt head against the end surface of the boss portion of the armature 21. In this case, the O-ring 25 is disposed in an annular gap between the vicinity of the tip of the rotary shaft tip 10a and the boss portion 21a of the armature.

図２に一点鎖線で示すように、軸封装置１９と第２軸封装置２２との間にオイル等の液体潤滑剤や二硫化モリブデン等の固体潤滑剤を３２を配設しても良い。潤滑剤３２は、アーマチュアのボス部２１ａに塗布しても良く、或いは軸封装置１９と第２軸封装置２２の間に空間に封入しても良い。
軸封装置１９と第２軸封装置２２との間に潤滑剤３２が配設されることにより、第２軸封装置２２のリップシール部材２２ａが潤滑され、リップシール部材２２ａの磨耗が抑制される。 As indicated by a one-dot chain line in FIG. 2, a liquid lubricant such as oil or a solid lubricant such as molybdenum disulfide 32 may be disposed between the shaft seal device 19 and the second shaft seal device 22. The lubricant 32 may be applied to the boss portion 21a of the armature, or may be sealed in a space between the shaft seal device 19 and the second shaft seal device 22.
By disposing the lubricant 32 between the shaft seal device 19 and the second shaft seal device 22, the lip seal member 22a of the second shaft seal device 22 is lubricated, and wear of the lip seal member 22a is suppressed. The

図２に二点鎖線で示すように、軸封装置１９と第２軸封装置２２との間に活性炭やゼオライト等の冷媒吸着剤３３を配設しても良い。円筒状に形成した冷媒吸着剤３３を、ボス部１８ａの回転軸貫通穴に嵌合固定する。
軸封装置１９と第２軸封装置２２との間に冷媒吸着剤３３が配設されることにより、冷媒ガスのハウジング外への漏洩が更に効果的に阻止される。 As shown by a two-dot chain line in FIG. 2, a refrigerant adsorbent 33 such as activated carbon or zeolite may be disposed between the shaft seal device 19 and the second shaft seal device 22. The refrigerant adsorbent 33 formed in a cylindrical shape is fitted and fixed in the rotation shaft through hole of the boss portion 18a.
By disposing the refrigerant adsorbent 33 between the shaft seal device 19 and the second shaft seal device 22, leakage of the refrigerant gas to the outside of the housing is further effectively prevented.

本発明は斜板式圧縮機のみならず、冷媒ガスを吸引圧縮する全ての形式の圧縮機に広く利用可能である。 The present invention is widely applicable not only to swash plate compressors but also to all types of compressors that suck and compress refrigerant gas.

本発明の実施例に係る可変容量型斜板式圧縮機の断面図である。1 is a cross-sectional view of a variable capacity swash plate compressor according to an embodiment of the present invention. 本発明の実施例に係る可変容量型斜板式圧縮機の部分拡大断面図である。1 is a partially enlarged cross-sectional view of a variable capacity swash plate compressor according to an embodiment of the present invention.

符号の説明Explanation of symbols

Ａ 可変容量型斜板式圧縮機
１０ 回転軸
１１ ローター
１２ 斜板
１３ リンク機構
１４ シュー
１５ ピストン
１８ フロントハウジング
１９、２２ 軸封装置
２１ アーマチュア
２５ Ｏリング
３２ 潤滑剤
３３ 冷媒吸着剤 A Variable capacity type swash plate compressor 10 Rotating shaft 11 Rotor 12 Swash plate 13 Link mechanism 14 Shoe 15 Piston 18 Front housing 19, 22 Shaft seal device 21 Armature 25 O-ring 32 Lubricant 33 Refrigerant adsorbent

Claims (6)

回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、ハウジングボス部と当該ボス部を貫通する回転軸との間に配設された軸封装置と、回転軸先端部に固定され外部駆動源により回転駆動される回転体とを備え、回転体はハウジングボス部に挿入されると共に回転軸先端部が挿入されるボス部を有し、ハウジングボス部と回転体ボス部との間の環状隙間に第２軸封装置が配設されていることを特徴とする冷媒ガス圧縮機。 A rotating shaft, a compression mechanism driven by the rotating shaft, a housing that houses the rotating shaft and the compression mechanism, and a shaft seal device disposed between the housing boss portion and the rotating shaft that passes through the boss portion; A rotating body fixed to the distal end of the rotating shaft and driven to rotate by an external drive source, the rotating body being inserted into the housing boss portion and having a boss portion into which the rotating shaft distal end portion is inserted. A refrigerant gas compressor, wherein a second shaft seal device is disposed in an annular gap between the rotating body boss portion and the rotating body boss portion. 回転体ボス部と当該ボス部に挿入された回転軸先端部との間にシール部材が配設されていることを特徴とする請求項１に記載の冷媒ガス圧縮機。 The refrigerant gas compressor according to claim 1, wherein a seal member is disposed between the rotating body boss portion and a rotating shaft tip portion inserted into the boss portion. 第２軸封装置は水素化二トリルゴム又はフッ素樹脂を主体に配合された素材により形成されたリップシール部材を有していることを特徴とする請求項１又は２に記載の冷媒ガス圧縮機。 The refrigerant gas compressor according to claim 1 or 2, wherein the second shaft seal device has a lip seal member formed of a material mainly composed of hydrogenated nitrile rubber or fluororesin. シール部材は水素化二トリルゴムを主体に配合された素材により形成されていることを特徴とする請求項２に記載の冷媒ガス圧縮機。 The refrigerant gas compressor according to claim 2, wherein the seal member is made of a material mainly composed of hydrogenated nitrile rubber. 軸封装置と第２軸封装置との間に潤滑剤が配設されていることを特徴とする請求項１乃至４の何れか１項に記載の冷媒ガス圧縮機。 The refrigerant gas compressor according to any one of claims 1 to 4, wherein a lubricant is disposed between the shaft seal device and the second shaft seal device. 軸封装置と第２軸封装置との間に冷媒吸着剤が配設されていることを特徴とする請求項１乃至５の何れか１項に記載の冷媒ガス圧縮機。 The refrigerant gas compressor according to any one of claims 1 to 5, wherein a refrigerant adsorbent is disposed between the shaft seal device and the second shaft seal device.
JP2005170189A 2005-03-11 2005-06-09 Refrigerating compressor Pending JP2006283747A (en)

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JP2005170189A JP2006283747A (en) 2005-03-11 2005-06-09 Refrigerating compressor

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0320174A (en) * 1989-06-02 1991-01-29 Deere & Co Sealing
JP2000105003A (en) * 1998-09-28 2000-04-11 Sanyo Electric Co Ltd Refrigerating machine unit
JP2004197683A (en) * 2002-12-19 2004-07-15 Calsonic Kansei Corp Shaft sealing structure of compressor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0320174A (en) * 1989-06-02 1991-01-29 Deere & Co Sealing
JP2000105003A (en) * 1998-09-28 2000-04-11 Sanyo Electric Co Ltd Refrigerating machine unit
JP2004197683A (en) * 2002-12-19 2004-07-15 Calsonic Kansei Corp Shaft sealing structure of compressor

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