JP2006348851A - Solenoid capacity control valve for variable displacement swash plate type compressor - Google Patents

Solenoid capacity control valve for variable displacement swash plate type compressor Download PDF

Info

Publication number
JP2006348851A
JP2006348851A JP2005176203A JP2005176203A JP2006348851A JP 2006348851 A JP2006348851 A JP 2006348851A JP 2005176203 A JP2005176203 A JP 2005176203A JP 2005176203 A JP2005176203 A JP 2005176203A JP 2006348851 A JP2006348851 A JP 2006348851A
Authority
JP
Japan
Prior art keywords
control valve
solenoid
resistance
swash plate
refrigerant gas
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
Application number
JP2005176203A
Other languages
Japanese (ja)
Inventor
Takashi Fukumuro
貴士 福室
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanden Corp
Original Assignee
Sanden Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanden Corp filed Critical Sanden Corp
Priority to JP2005176203A priority Critical patent/JP2006348851A/en
Publication of JP2006348851A publication Critical patent/JP2006348851A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solenoid capacity control valve for a displacement swash plate type compressor, comprising a solenoid part incorporating a solenoid, and a control valve part incorporating a control valve to be driven by the solenoid, wherein a plurality of seal members are mounted on the outer periphery of the control valve part at mutual spaces in the longitudinal direction of the control valve part for more effectively preventing the permeation leakage of refrigerant gas to the outside of the compressor via seal members than conventional. <P>SOLUTION: The solenoid capacity control valve comprises the solenoid part incorporating the solenoid, and the control valve part incorporating the control valve to be driven by the solenoid, wherein the plurality of seal members are mounted on the outer periphery of the control valve part at mutual spaces in the longitudinal direction of the control valve part. The seal member located nearest the solenoid part consists of a first portion formed of a raw material superior in refrigerant gas permeation resistance and located near the solenoid part and a second portion formed of a raw material superior in heat resistance and foaming crack resistance and isolated from the solenoid part. The other seal members are each formed of a raw material superior in heat resistance and foaming crack resistance. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、可変容量斜板式圧縮機の電磁式容量制御弁に関するものである。 The present invention relates to an electromagnetic capacity control valve for a variable capacity swash plate compressor.

図１に示すように、ソレノイドを内蔵する円柱状のソレノイド部１と、ソレノイドにより駆動される制御弁を内蔵する円柱状の制御弁部２とを備え、制御弁部の２外周に制御弁部２の長手方向に互いに間隔を隔てて複数のＯリング３が装着された可変容量斜板式圧縮機の電磁式容量制御弁が特許文献１等に開示されている。
電磁式容量制御弁は、制御弁部２を圧縮機内側へ差し向けて、圧縮機ハウジングに形成された凹部に挿入固定されている。制御弁部２の外周面は、ハウジング凹部の周壁に当接しており、Ｏリング３とハウジング凹部の周壁との間に適正な面圧が生じている。制御弁部２には斜板式圧縮機吐出室との連通穴と、圧縮機吸入室との連通穴と、圧縮機クランク室との連通穴とが、制御弁部２の長手方向に互いに間隔を隔てて形成されている。Ｏリング３は互いに隣接する連通穴の間に１個、最もソレノイド部１に近接する連通穴とソレノイド部１との間に１個の計３個配設されている。互いに隣接する連通穴間に配設されたＯリング３は、制御弁部２の外側での連通穴相互の短絡を阻止し、最もソレノイド部１に近接する連通穴とソレノイド部１との間に配設されたＯリング３は、圧縮機外への冷媒ガスの漏洩を阻止している。
従来、Ｏリング３の素材として、Ｏリング３が高温の吐出冷媒ガスに接触すること、並びにＯリング３が液冷媒に接触する可能性があること等を勘案して、耐熱性や耐発泡割れ性に優れる素材が使用されていた。
特開２００３−２５４２４６ As shown in FIG. 1, a columnar solenoid part 1 containing a solenoid and a columnar control valve part 2 containing a control valve driven by the solenoid are provided, and a control valve part is provided on the outer periphery of the control valve part. Patent Document 1 discloses an electromagnetic capacity control valve of a variable capacity swash plate compressor in which a plurality of O-rings 3 are mounted at intervals in the longitudinal direction of 2.
The electromagnetic capacity control valve is inserted and fixed in a recess formed in the compressor housing with the control valve portion 2 facing the inside of the compressor. The outer peripheral surface of the control valve portion 2 is in contact with the peripheral wall of the housing recess, and an appropriate surface pressure is generated between the O-ring 3 and the peripheral wall of the housing recess. The control valve portion 2 has a communication hole with the swash plate compressor discharge chamber, a communication hole with the compressor suction chamber, and a communication hole with the compressor crank chamber spaced apart from each other in the longitudinal direction of the control valve portion 2. It is formed apart. A total of three O-rings 3 are disposed between the adjacent communication holes and one between the communication hole closest to the solenoid unit 1 and the solenoid unit 1. The O-ring 3 disposed between the communication holes adjacent to each other prevents a short circuit between the communication holes on the outside of the control valve unit 2, and between the communication hole closest to the solenoid unit 1 and the solenoid unit 1. The arranged O-ring 3 prevents the refrigerant gas from leaking out of the compressor.
Conventionally, as a material of the O-ring 3, considering that the O-ring 3 is in contact with a high-temperature discharged refrigerant gas and that the O-ring 3 may be in contact with a liquid refrigerant, heat resistance and foam cracking resistance are considered. Material with excellent properties was used.
JP2003-254246

最もソレノイド部１に近接する連通穴とソレノイド部１との間に配設されたＯリング３は、圧縮機外への冷媒ガスの漏洩を阻止しているが、耐熱性や耐発泡割れ性に優れる素材から成るＯリング３では、制御弁部２の外周面とハウジング凹部周壁との当接部を介する冷媒ガスの隙間漏れは有効に阻止できても、Ｏリング３を介する冷媒ガスの透過漏れ（Ｏリング３を透過した冷媒ガスの圧縮機外への漏洩）を効果的に阻止することはできなかった。
本発明は上記問題に鑑みてなされたものであり、ソレノイドを内蔵するソレノイド部と、ソレノイドにより駆動される制御弁を内蔵する制御弁部とを備え、制御弁部の外周に制御弁部の長手方向に互いに間隔を隔てて複数のシール部材が装着された容量斜板式圧縮機の電磁式容量制御弁であって、シール部材を介する冷媒ガスの圧縮機外への透過漏れが従来に比べて効果的に阻止された電磁式容量制御弁を提供することを目的とする。 The O-ring 3 disposed between the communication hole closest to the solenoid unit 1 and the solenoid unit 1 prevents the refrigerant gas from leaking out of the compressor. In the O-ring 3 made of an excellent material, refrigerant gas permeation leakage through the O-ring 3 can be effectively prevented even though refrigerant gas gap leakage through the contact portion between the outer peripheral surface of the control valve portion 2 and the housing recess peripheral wall can be effectively prevented. (Leakage of refrigerant gas that has passed through the O-ring 3 to the outside of the compressor) could not be effectively prevented.
The present invention has been made in view of the above problems, and includes a solenoid part that incorporates a solenoid and a control valve part that incorporates a control valve driven by the solenoid, and the length of the control valve part on the outer periphery of the control valve part. This is an electromagnetic capacity control valve for a capacity swash plate compressor in which a plurality of seal members are mounted at intervals in the direction, and the permeation leakage of refrigerant gas to the outside of the compressor through the seal member is more effective than in the past It is an object of the present invention to provide an electromagnetic capacity control valve that is blocked.

上記課題を解決するために、本発明においては、ソレノイドを内蔵するソレノイド部と、ソレノイドにより駆動される制御弁を内蔵する制御弁部とを備え、制御弁部の外周に制御弁部の長手方向に互いに間隔を隔てて複数のシール部材が装着され、ソレノイド部に最も近接するシール部材が、耐冷媒ガス透過性に優れる素材から成りソレノイド部に近接する第１部分と、耐熱性と耐発泡割れ性とに優れる素材から成りソレノイド部から離隔する第２部分とにより形成されており、他のシール部材は耐熱性と耐発泡割れ性とに優れる素材から成ることを特徴とする可変容量斜板式圧縮機の電磁式容量制御弁を提供する。
本発明においては、ソレノイド部に最も近接するシール部材の、ソレノイド部に近接する第１部分が耐冷媒ガス透過性に優れる素材から成るので、全てのＯリングが耐熱性と耐発泡割れ性とに優れる素材から成る従来の電磁式容量制御弁に比べて、シール部材を介する冷媒ガスの圧縮機外への透過漏れが効果的に阻止される。ソレノイド部に最も近接するシール部材のソレノイド部から離隔する第２部分と、他のシール部材とは、従来と同様に耐熱性と耐発泡割れ性とに優れる素材から成るので、冷媒ガスの透過漏れ以外の制御弁部のシール性能は、従来と同等である。 In order to solve the above-mentioned problems, the present invention includes a solenoid part incorporating a solenoid and a control valve part incorporating a control valve driven by the solenoid, and the longitudinal direction of the control valve part on the outer periphery of the control valve part A plurality of sealing members are attached to each other at intervals, and the sealing member closest to the solenoid part is made of a material excellent in refrigerant gas permeation resistance, the first part adjacent to the solenoid part, and heat resistance and foam cracking resistance. Variable capacity swash plate compression, characterized in that it is formed by a second part separated from the solenoid part and made of a material excellent in heat resistance, and the other sealing member is made of a material excellent in heat resistance and foam crack resistance The electromagnetic capacity control valve of the machine is provided.
In the present invention, since the first portion of the seal member closest to the solenoid portion is made of a material having excellent refrigerant gas permeation resistance, all the O-rings have heat resistance and resistance to foam cracking. Compared with a conventional electromagnetic capacity control valve made of an excellent material, leakage of the refrigerant gas through the seal member to the outside of the compressor is effectively prevented. Since the second portion of the seal member closest to the solenoid portion and the other seal members are made of a material having excellent heat resistance and resistance to foam cracking as in the past, the permeation leakage of the refrigerant gas The sealing performance of the control valve part other than is the same as the conventional one.

本発明の好ましい態様においては、シール部材は筒部を有する。
本発明の好ましい態様においては、筒部の外周面に環状突起部が形成されている。
シール部材が筒部を有することにより、従来のＯリングに比べて、透過距離、即ちシール部材の制御弁部長手方向の延在長さが長くなり、シール部材を介する冷媒ガスの圧縮機外への透過漏れが効果的に阻止される。
筒部の外周面に環状突起部が形成されている場合には、環状突起部とハウジング凹部との間に高い面圧が働くので、制御弁部とハウジング凹部周壁との当接部を介する冷媒ガスの圧縮機外への隙間漏れが効果的に阻止される。 In a preferred embodiment of the present invention, the seal member has a cylindrical portion.
In a preferred embodiment of the present invention, an annular protrusion is formed on the outer peripheral surface of the cylindrical portion.
When the seal member has the cylindrical portion, the permeation distance, that is, the length of the seal member extending in the longitudinal direction of the control valve portion becomes longer than that of the conventional O-ring, and the refrigerant gas passes through the seal member to the outside of the compressor. Is effectively prevented.
When an annular protrusion is formed on the outer peripheral surface of the cylindrical portion, a high surface pressure acts between the annular protrusion and the housing recess, so that the refrigerant passes through the contact portion between the control valve portion and the housing recess peripheral wall. Gas gap leakage outside the compressor is effectively prevented.

本発明の好ましい態様においては、耐冷媒ガス透過性に優れる素材は塩素化ポリエチレン（ＣＭ）であり、耐熱性と耐発泡割れ性とに優れる素材は水素化ニトリルゴム（ＨＮＢＲ）である。
塩素化ポリエチレン、水素化ニトリルゴム共に市場で容易に入手できるので、耐冷媒ガス透過性に優れる素材、耐熱性と耐発泡割れ性とに優れる素材として好適である。 In a preferred embodiment of the present invention, the material excellent in refrigerant gas permeability resistance is chlorinated polyethylene (CM), and the material excellent in heat resistance and resistance to foam cracking is hydrogenated nitrile rubber (HNBR).
Since both chlorinated polyethylene and hydrogenated nitrile rubber can be easily obtained on the market, they are suitable as a material excellent in refrigerant gas permeability and a material excellent in heat resistance and resistance to foam cracking.

本発明においては、ソレノイド部に最も近接するシール部材の、ソレノイド部に近接する第１部分が耐冷媒ガス透過性に優れる素材から成るので、全てのＯリングが耐熱性と耐発泡割れ性とに優れる素材から成る従来の電磁式容量制御弁に比べて、シール部材を介する冷媒ガスの圧縮機外への透過漏れが効果的に阻止される。ソレノイド部に最も近接するシール部材のソレノイド部から離隔する第２部分と、他のシール部材とは、従来と同様に耐熱性と耐発泡割れ性とに優れる素材から成るので、冷媒ガスの透過漏れ以外の制御弁部のシール性能は、従来と同等である。 In the present invention, since the first portion of the seal member closest to the solenoid portion is made of a material having excellent refrigerant gas permeation resistance, all the O-rings have heat resistance and resistance to foam cracking. Compared with a conventional electromagnetic capacity control valve made of an excellent material, permeation leakage of refrigerant gas to the outside of the compressor through the seal member is effectively prevented. Since the second portion of the seal member closest to the solenoid portion and the other seal members are made of a material having excellent heat resistance and resistance to foam cracking as in the past, the permeation leakage of the refrigerant gas The sealing performance of the control valve part other than is the same as the conventional one.

本発明の実施例に係る可変容量斜板式圧縮機の電磁式容量制御弁を説明する。 An electromagnetic capacity control valve of a variable capacity swash plate compressor according to an embodiment of the present invention will be described.

図２に示すように、可変容量斜板式圧縮機の電磁式容量制御弁１０は、ソレノイドを内蔵する円柱状のソレノイド部１１と、ソレノイドにより駆動される制御弁を内蔵する円柱状の制御弁部１２とを備えている。
電磁式容量制御弁１０は、制御弁部１２を圧縮機内側へ差し向けて、圧縮機ハウジングに形成された凹部に挿入固定されている。制御弁部１２の外周面は、ハウジング凹部の周壁に当接している。制御弁部１２には斜板式圧縮機吐出室との連通穴１２ａと、圧縮機吸入室との連通穴１２ｂと、圧縮機クランク室との連通穴１２ｃとが、制御弁部１２の長手方向に互いに間隔を隔てて形成されている。
制御弁部１２の外周に、互いに隣接する連通穴１２ｃと１２ａの間の部位と、連通穴１２ａと１２ｂの間の部位とに、制御弁部１２の長手方向に互いに間隔を隔てて、耐熱性と耐発泡割れ性とに優れる素材である水素化ニトリルゴム（ＨＮＢＲ）製のＯリング１３ａ、１３ｂが装着されている。最もソレノイド部１１に近接する連通穴１２ｂとソレノイド部１１の間の部位に、Ｏリング複合体１３ｃが装着されている。Ｏリング複合体１３ｃは、ソレノイド部１１に近接する耐冷媒ガス透過性に優れる素材である塩素化ポリエチレン（ＣＭ）製の第１Ｏリング１３ｃ’と、ソレノイド部１１から離隔する耐熱性と耐発泡割れ性とに優れる水素化ニトリルゴム（ＨＮＢＲ）製の第２Ｏリング１３ｃ”とにより形成されている。第１Ｏリング１３ｃ’と第２Ｏリング１３ｃ”とは互いに当接している。Ｏリング１３ａ、１３ｂ、１３ｃ’、１３ｃ”とハウジング凹部の周壁との間に適正な面圧が生じている。 As shown in FIG. 2, an electromagnetic capacity control valve 10 of a variable capacity swash plate compressor includes a cylindrical solenoid part 11 having a built-in solenoid and a cylindrical control valve part having a control valve driven by the solenoid. 12.
The electromagnetic capacity control valve 10 is inserted and fixed in a recess formed in the compressor housing with the control valve portion 12 facing the inside of the compressor. The outer peripheral surface of the control valve portion 12 is in contact with the peripheral wall of the housing recess. The control valve portion 12 has a communication hole 12a with the swash plate compressor discharge chamber, a communication hole 12b with the compressor suction chamber, and a communication hole 12c with the compressor crank chamber in the longitudinal direction of the control valve portion 12. They are spaced apart from one another.
On the outer periphery of the control valve portion 12, a portion between the communication holes 12 c and 12 a adjacent to each other and a portion between the communication holes 12 a and 12 b are spaced apart from each other in the longitudinal direction of the control valve portion 12. And O-rings 13a and 13b made of hydrogenated nitrile rubber (HNBR), which is a material excellent in foam crack resistance. An O-ring composite 13 c is attached to a portion between the communication hole 12 b closest to the solenoid part 11 and the solenoid part 11. The O-ring composite 13c includes a first O-ring 13c ′ made of chlorinated polyethylene (CM), which is a material excellent in refrigerant gas permeability close to the solenoid part 11, and heat resistance and foam cracking resistance separated from the solenoid part 11. And a second O-ring 13c ″ made of hydrogenated nitrile rubber (HNBR) which is excellent in performance. The first O-ring 13c ′ and the second O-ring 13c ″ are in contact with each other. Appropriate surface pressure is generated between the O-rings 13a, 13b, 13c ′, 13c ″ and the peripheral wall of the housing recess.

電磁容量制御弁１０においては、ソレノイド部１１に最も近接するシール部材であるＯリング複合体１３ｃの、ソレノイド部１１に近接する第１部分である第１Ｏリング１３ｃ’が耐冷媒ガス透過性に優れる塩素化ポリエチレン（ＣＭ）製なので、全てのＯリング３が耐熱性と耐発泡割れ性とに優れる素材から成る従来の電磁式容量制御弁に比べて、シール部材を介する冷媒の圧縮機外への透過漏れが効果的に阻止される。ソレノイド部１１に最も近接するシール部材であるＯリング複合体１３ｃのソレノイド部１１から離隔する第２部分である第２Ｏリング１３ｃ”と、他のシール部材であるＯリング１３ａ、１３ｂとは、従来と同様に耐熱性と耐発泡割れ性とに優れる素材である水素化ニトリルゴム（ＨＮＢＲ）から成るので、冷媒ガスの透過漏れ以外の制御弁部１２のシール性能は、従来と同等である。
塩素化ポリエチレン、水素化ニトリルゴム共に市場で容易に入手できるので、耐冷媒ガス透過性に優れる素材、耐熱性と耐発泡割れ性とに優れる素材として好適である。 In the electromagnetic capacity control valve 10, the first O-ring 13 c ′ that is the first portion adjacent to the solenoid portion 11 of the O-ring composite 13 c that is the seal member closest to the solenoid portion 11 has excellent refrigerant gas permeability. Because it is made of chlorinated polyethylene (CM), all the O-rings 3 are made of a material excellent in heat resistance and foam cracking resistance. Permeation leakage is effectively prevented. The second O-ring 13c '' which is the second part separated from the solenoid part 11 of the O-ring composite 13c which is the seal member closest to the solenoid part 11 and the O-rings 13a and 13b which are other seal members are conventionally known. Since it is made of hydrogenated nitrile rubber (HNBR), which is a material excellent in heat resistance and foam cracking resistance, the sealing performance of the control valve portion 12 other than refrigerant gas permeation leakage is equivalent to that of the conventional one.
Since both chlorinated polyethylene and hydrogenated nitrile rubber can be easily obtained on the market, they are suitable as a material excellent in refrigerant gas permeability and a material excellent in heat resistance and resistance to foam cracking.

図３示すように、可変容量斜板式圧縮機の電磁式容量制御弁２０は、ソレノイドを内蔵するソレノイド部２１と、ソレノイドにより駆動される制御弁を内蔵する制御弁部２２とを備えている。
電磁式容量制御弁２０は、制御弁部２２を圧縮機内側へ差し向けて、圧縮機ハウジングに形成された凹部に挿入固定されている。制御弁部２２には斜板式圧縮機吐出室との連通穴２２ａと、圧縮機吸入室との連通穴２２ｂと、圧縮機クランク室との連通穴２２ｃとが、制御弁部２２の長手方向に互いに間隔を隔てて形成されている。
制御弁部２２の外周の、互いに隣接する連通穴２２ｃと２２ａの間の部位と、連通穴２２ａと２２ｂの間の部位とは、略全面に亙って、且つ制御弁部２２の長手方向に互いに間隔を隔てて、耐熱性と耐発泡割れ性とに優れる素材である水素化ニトリルゴム（ＨＮＢＲ）製のシール部材２３ａ、２３ｂにより被覆されている。シール部材２３ａ、２３ｂは、筒部２３ａ’、２３ｂ’と、筒部２３ａ’、２３ｂ’の外周面に形成された断面が半円形の環状突起部２３ａ”、２３ｂ”とを有している。
制御弁部２２の外周の、最もソレノイド部２１に近接する連通穴２２ｂとソレノイド部２１の間の部位は、略全面に亙って、シール部材２３ｃにより被覆されている。シール部材２３ｃは、ソレノイド部２１に近接する耐冷媒ガス透過性に優れる素材である塩素化ポリエチレン（ＣＭ）製の第１部分２３ｄと、ソレノイド部２１から離隔する耐熱性と耐発泡割れ性とに優れる水素化ニトリルゴム（ＨＮＢＲ）製の第２部分２３ｅとにより形成されている。第１部分２３ｄと第２部分２３ｅとは互いに当接している。第１部分２３ｄ、第２部分２３ｅは、筒部２３ｄ’、２３ｅ’と、筒部２３ｄ’、２３ｅ’の外周面に形成された断面が半円形の環状突起部２３ｄ”、２３ｅ”とを有している。 As shown in FIG. 3, the electromagnetic capacity control valve 20 of the variable capacity swash plate compressor includes a solenoid part 21 containing a solenoid and a control valve part 22 containing a control valve driven by the solenoid.
The electromagnetic capacity control valve 20 is inserted and fixed in a recess formed in the compressor housing with the control valve portion 22 facing the inside of the compressor. The control valve portion 22 has a communication hole 22a with the swash plate compressor discharge chamber, a communication hole 22b with the compressor suction chamber, and a communication hole 22c with the compressor crank chamber in the longitudinal direction of the control valve portion 22. They are spaced apart from one another.
The part between the communication holes 22c and 22a adjacent to each other on the outer periphery of the control valve part 22 and the part between the communication holes 22a and 22b extend over substantially the entire surface and in the longitudinal direction of the control valve part 22. The seal members 23a and 23b made of hydrogenated nitrile rubber (HNBR), which is a material excellent in heat resistance and foam crack resistance, are spaced apart from each other. The seal members 23a and 23b include cylindrical portions 23a ′ and 23b ′ and annular protrusions 23a ″ and 23b ″ having a semicircular cross section formed on the outer peripheral surface of the cylindrical portions 23a ′ and 23b ′.
A portion of the outer periphery of the control valve portion 22 between the communication hole 22b closest to the solenoid portion 21 and the solenoid portion 21 is covered with a seal member 23c over substantially the entire surface. The seal member 23c has a first portion 23d made of chlorinated polyethylene (CM), which is a material excellent in refrigerant gas permeability close to the solenoid portion 21, and heat resistance and foam crack resistance separated from the solenoid portion 21. And a second portion 23e made of excellent hydrogenated nitrile rubber (HNBR). The first portion 23d and the second portion 23e are in contact with each other. The first portion 23d and the second portion 23e have cylindrical portions 23d ′ and 23e ′ and annular protrusions 23d ″ and 23e ″ having a semicircular cross section formed on the outer peripheral surface of the cylindrical portions 23d ′ and 23e ′. is doing.

本実施例に係る容量制御弁２０が図示しない圧縮機ハウジングの凹部に挿入固定された状態において、環状突起２３ａ”、２３ｂ”、２３ｄ”、２３ｅ”は、ハウジング凹部周壁に押し付けられ押しつぶされて、筒体２３ａ’、２３ｂ’、２３ｄ’、２３ｅ’の外周面と面一になっている。筒体２３ａ’、２３ｂ’、２３ｄ’、２３ｅ’の外周面はハウジング凹部周壁に当接して、当該周壁との間に適正な面圧が生じており、押しつぶされた環状突起環状突起２３ａ”、２３ｂ”、２３ｄ”、２３ｅ”の部位の外周面とハウジング凹部周壁との間には他部に比べて高い面圧が生じている。 In a state where the capacity control valve 20 according to the present embodiment is inserted and fixed in a recess of a compressor housing (not shown), the annular protrusions 23a ″, 23b ″, 23d ″, and 23e ″ are pressed against the peripheral wall of the housing recess and crushed. It is flush with the outer peripheral surfaces of the cylinders 23a ′, 23b ′, 23d ′, and 23e ′. The outer peripheral surfaces of the cylinders 23a ′, 23b ′, 23d ′, and 23e ′ are in contact with the peripheral wall of the housing recess, and an appropriate surface pressure is generated between the peripheral surfaces. A higher surface pressure is generated between the outer peripheral surface of the portions 23b ″, 23d ″, and 23e ″ and the peripheral wall of the housing recess than the other portions.

電磁容量制御弁２０においては、ソレノイド部２１に最も近接するシール部材２３ｃの、ソレノイド部２１に近接する第１部分２３ｄが耐冷媒ガス透過性に優れる塩素化ポリエチレン（ＣＭ）製なので、全てのＯリング３が耐熱性と耐発泡割れ性とに優れる素材から成る従来の電磁式容量制御弁に比べて、シール部材を介する冷媒の圧縮機外への透過漏れが効果的に阻止される。ソレノイド部２１に最も近接するシール部材２３ｃのソレノイド部２１から離隔する第２部分２３ｅと、他のシール部材２３ａ、２３ｂとは、従来と同様に耐熱性と耐発泡割れ性とに優れる素材である水素化ニトリルゴム（ＨＮＢＲ）から成るので、冷媒ガスの透過漏れ以外の制御弁部２２のシール性能は、従来と同等である。
塩素化ポリエチレン、水素化ニトリルゴム共に市場で容易に入手できるので、耐冷媒ガス透過性に優れる素材、耐熱性と耐発泡割れ性とに優れる素材として好適である。
シール部材２３ｃの第１部分２３ｄが筒部２３ｄ’を有することにより、透過距離、即ち第１部分２３ｄの制御弁部２２長手方向の延在長さが、Ｏリング１３ｃ’に比べて長くなり、第１部分２３ｄを介する冷媒ガスの圧縮機外への透過漏れが効果的に阻止される。
環状突起部２３ｄ”、２３ｅ”とハウジング凹部との間に高い面圧が働くので、制御弁部２２とハウジング凹部周壁との当接部を介する冷媒ガスの圧縮機外への隙間漏れが効果的に阻止される。 In the electromagnetic capacity control valve 20, since the first portion 23d of the seal member 23c closest to the solenoid portion 21 is made of chlorinated polyethylene (CM) having excellent refrigerant gas permeation resistance, all O Compared to a conventional electromagnetic capacity control valve in which the ring 3 is made of a material excellent in heat resistance and resistance to foam cracking, leakage of refrigerant through the seal member to the outside of the compressor is effectively prevented. The second portion 23e separated from the solenoid portion 21 of the seal member 23c closest to the solenoid portion 21 and the other seal members 23a and 23b are materials having excellent heat resistance and resistance to foam cracking as in the conventional case. Since it consists of hydrogenated nitrile rubber (HNBR), the sealing performance of the control valve part 22 other than the permeation leakage of the refrigerant gas is equivalent to the conventional one.
Since both chlorinated polyethylene and hydrogenated nitrile rubber can be easily obtained on the market, they are suitable as a material excellent in refrigerant gas permeability and a material excellent in heat resistance and resistance to foam cracking.
Since the first portion 23d of the seal member 23c has the cylindrical portion 23d ′, the transmission distance, that is, the extension length of the first portion 23d in the longitudinal direction of the control valve portion 22 is longer than that of the O-ring 13c ′. Permeation leakage of the refrigerant gas to the outside of the compressor through the first portion 23d is effectively prevented.
Since a high surface pressure acts between the annular protrusions 23d ″ and 23e ″ and the housing recess, leakage of the refrigerant gas to the outside of the compressor through the contact portion between the control valve portion 22 and the housing recess peripheral wall is effective. To be blocked.

本発明は、可変容量斜板式圧縮機の電磁式容量制御弁に広く利用可能である。 The present invention is widely applicable to an electromagnetic capacity control valve of a variable capacity swash plate compressor.

従来の可変容量斜板式圧縮機の電磁式容量制御弁の断面図である。It is sectional drawing of the electromagnetic capacity | capacitance control valve of the conventional variable capacity | capacitance swash plate type compressor. 本発明の第１実施例に係る可変容量斜板式圧縮機の電磁式容量制御弁の断面図である。It is sectional drawing of the electromagnetic capacity | capacitance control valve of the variable capacity | capacitance swash plate type compressor which concerns on 1st Example of this invention. 本発明の第２実施例に係る可変容量斜板式圧縮機の電磁式容量制御弁の断面図である。It is sectional drawing of the electromagnetic capacity | capacitance control valve of the variable capacity | capacitance swash plate type compressor which concerns on 2nd Example of this invention.

符号の説明Explanation of symbols

１、１１、２１ ソレノイド部
２、１２、２２ 制御弁部
３、１３ａ、１３ｂ Ｏリング
１３ｃ Ｏリング複合体
１３ｃ’ 第１Ｏリング
１３ｃ” 第２Ｏリング
１０、２０ 電磁式容量制御弁
１２ａ、１２ｂ、１２ｃ、２２ａ、２２ｂ、２２ｃ 連通穴
２３ａ、２３ｂ、２３ｃ シール部材
２３ｄ 第１部分
２３ｅ 第２部分
２３ａ’、２３ｂ’、２３ｄ’、２３ｅ’ 筒部
２３ａ”、２３ｂ”、２３ｄ”、２３ｅ” 環状突起部 1, 11, 21 Solenoid part 2, 12, 22 Control valve part 3, 13a, 13b O-ring 13c O-ring complex 13c 'First O-ring 13c "Second O-ring 10, 20 Electromagnetic capacity control valves 12a, 12b, 12c , 22a, 22b, 22c Communication holes 23a, 23b, 23c Seal member 23d First portion 23e Second portions 23a ', 23b', 23d ', 23e' Cylindrical portions 23a ", 23b", 23d ", 23e" Annular protrusions

Claims (4)

ソレノイドを内蔵するソレノイド部と、ソレノイドにより駆動される制御弁を内蔵する制御弁部とを備え、制御弁部の外周に制御弁部の長手方向に互いに間隔を隔てて複数のシール部材が装着され、ソレノイド部に最も近接するシール部材が、耐冷媒ガス透過性に優れる素材から成りソレノイド部に近接する第１部分と、耐熱性と耐発泡割れ性とに優れる素材から成りソレノイド部から離隔する第２部分とにより形成されており、他のシール部材は耐熱性と耐発泡割れ性とに優れる素材から成ることを特徴とする可変容量斜板式圧縮機の電磁式容量制御弁。 A solenoid part having a built-in solenoid and a control valve part having a built-in control valve driven by the solenoid are provided, and a plurality of seal members are mounted on the outer periphery of the control valve part at intervals in the longitudinal direction of the control valve part. The seal member closest to the solenoid part is made of a material excellent in refrigerant gas permeation resistance, and is separated from the solenoid part by a first part close to the solenoid part and a material excellent in heat resistance and foam crack resistance. An electromagnetic capacity control valve for a variable capacity swash plate compressor, wherein the other sealing member is made of a material excellent in heat resistance and foam crack resistance. シール部材は筒部を有することを特徴とする請求項１に記載の可変容量斜板式圧縮機の電磁式容量制御弁。 The electromagnetic capacity control valve for a variable capacity swash plate compressor according to claim 1, wherein the seal member has a cylindrical portion. 筒部の外周面に環状突起部が形成されていることを特徴とする請求項２に記載の可変容量斜板式圧縮機の電磁式容量制御弁。 3. The electromagnetic capacity control valve for a variable capacity swash plate compressor according to claim 2, wherein an annular protrusion is formed on the outer peripheral surface of the cylindrical part. 耐冷媒ガス透過性に優れる素材は塩素化ポリエチレン（ＣＭ）であり、耐熱性と耐発泡割れ性とに優れる素材は水素化ニトリルゴム（ＨＮＢＲ）であることを特徴とする請求項１乃至３の何れか１項に記載の可変容量斜板式圧縮機の電磁式容量制御弁。 The material excellent in refrigerant gas permeation resistance is chlorinated polyethylene (CM), and the material excellent in heat resistance and resistance to foam cracking is hydrogenated nitrile rubber (HNBR). An electromagnetic capacity control valve for a variable capacity swash plate compressor according to any one of the preceding claims.
JP2005176203A 2005-06-16 2005-06-16 Solenoid capacity control valve for variable displacement swash plate type compressor Pending JP2006348851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005176203A JP2006348851A (en) 2005-06-16 2005-06-16 Solenoid capacity control valve for variable displacement swash plate type compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005176203A JP2006348851A (en) 2005-06-16 2005-06-16 Solenoid capacity control valve for variable displacement swash plate type compressor

Publications (1)

Publication Number Publication Date
JP2006348851A true JP2006348851A (en) 2006-12-28

Family

ID=37644957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005176203A Pending JP2006348851A (en) 2005-06-16 2005-06-16 Solenoid capacity control valve for variable displacement swash plate type compressor

Country Status (1)

Country Link
JP (1) JP2006348851A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140013844A (en) * 2012-07-27 2014-02-05 한라비스테온공조 주식회사 Sealing structure for pressure relief valve of swash plate type compressor
WO2016103602A1 (en) * 2014-12-25 2016-06-30 株式会社デンソー Shaft-sealing device and compressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000170656A (en) * 1998-12-03 2000-06-20 Toyota Autom Loom Works Ltd Compressor sealing structure and compressor
JP2001004251A (en) * 1999-04-22 2001-01-12 Denso Corp Leak-proof device for refrigerating machine
JP2002364534A (en) * 2001-06-11 2002-12-18 Saginomiya Seisakusho Inc Pressure sensitive solenoid control valve
JP2003028302A (en) * 2001-07-16 2003-01-29 Nok Corp Sealing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000170656A (en) * 1998-12-03 2000-06-20 Toyota Autom Loom Works Ltd Compressor sealing structure and compressor
JP2001004251A (en) * 1999-04-22 2001-01-12 Denso Corp Leak-proof device for refrigerating machine
JP2002364534A (en) * 2001-06-11 2002-12-18 Saginomiya Seisakusho Inc Pressure sensitive solenoid control valve
JP2003028302A (en) * 2001-07-16 2003-01-29 Nok Corp Sealing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140013844A (en) * 2012-07-27 2014-02-05 한라비스테온공조 주식회사 Sealing structure for pressure relief valve of swash plate type compressor
KR101883175B1 (en) * 2012-07-27 2018-07-30 한온시스템 주식회사 sealing structure for pressure relief valve of swash plate type compressor
WO2016103602A1 (en) * 2014-12-25 2016-06-30 株式会社デンソー Shaft-sealing device and compressor

Similar Documents

Publication Publication Date Title
US6428014B2 (en) Piston sealing ring assembly
TWI526641B (en) Fluid pressure apparatus
CA3015234A1 (en) Packing for a well service pump
JP2010053861A (en) Reciprocating pump
TW200722691A (en) Rotary compressor
US6322086B1 (en) Seal structure of compressor, and the compressor
US20050242513A1 (en) High temperature high pressure seal stack having run-dry capability
JP2006348851A (en) Solenoid capacity control valve for variable displacement swash plate type compressor
JP2013227994A (en) Four-way switching valve
US7513758B2 (en) Sealing rings for abrasive slurry pumps
JP2006528742A (en) Stroke-controlled pump valve
SE0203660L (en) Backing rings for high pressure seals, gaskets and pumps including these
JP2007315304A (en) Compressor
JP2007002672A (en) Electromagnetic displacement control valve of variable displacement swash plate compressor
JP2015021485A (en) Hand pump
JP5458081B2 (en) Diaphragm and diaphragm pump
JP2005220832A (en) Plunger type compressor sealing device
KR102284850B1 (en) Diaphragm with edge seal
JP2021006743A (en) Self-energization seal
JP2011133008A (en) Four-way selector valve
JP4628481B1 (en) Positive displacement reciprocating pump
JP2005188407A (en) Heat insulation structure in piston type compressor
JP2016020711A (en) Seal structure
KR101768620B1 (en) The linear hydraulic actuator
JP2021521399A (en) Two-way self-urging gasket

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080222

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100326

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100330

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20100713