WO2012086347A1 - Refrigerant compressor - Google Patents
Refrigerant compressor Download PDFInfo
- Publication number
- WO2012086347A1 WO2012086347A1 PCT/JP2011/076543 JP2011076543W WO2012086347A1 WO 2012086347 A1 WO2012086347 A1 WO 2012086347A1 JP 2011076543 W JP2011076543 W JP 2011076543W WO 2012086347 A1 WO2012086347 A1 WO 2012086347A1
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- WIPO (PCT)
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- chamber
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- cylinder head
- oil storage
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- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B27/0821—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B27/0821—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
- F04B27/0834—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication cylinder barrel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0238—Hermetic compressors with oil distribution channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
Definitions
- the oil recirculation mechanism includes an oil separation portion that separates oil from the discharged refrigerant, an oil storage chamber that stores the separated oil, and an oil return passage that returns the oil from the oil storage chamber to the suction side (low pressure region). Is done.
- the oil stored in the lower region returned to the suction chamber 119 is effectively cooled, and the upper region has a smaller bulge volume than the lower region. Heat exchange by the refrigerant is suppressed, and the intake refrigerant can be prevented from being unnecessarily heated.
- Variable capacity compressor 101 Cylinder block 101a Cylinder bore 102 Front housing 102a Boss portion 103 Valve plate 103a Suction port 103b Discharge port 103c Orifice 104 Cylinder head 104a Suction passage 104b Discharge passage 104b1 Lead-out hole 104b2 Separation chamber 104b3 Inlet hole 105 Crank chamber 106 Drive Shaft 107 Swash plate 108 Rotor 109 Coupling portion 110, 111 Coil spring 112 Shaft seal device 113, 114, 115, 116 Bearing 117 Piston 117a Recess 118 Shoe 119 Suction chamber 120 Discharge chamber 121 Air supply passage 122 Space 123 Communication passage 130 Separation pipe 132 oil storage chamber 132a bulging portion 134 closing member 136 orifice 140 fastening bolt 200 capacity control valve
Abstract
Description
シリンダヘッドには、その中心部に吐出室が配置され、その周囲を取り囲むように吸入室が配置されているため、貯油室の貯油スペースに対して吸入室に隣接している領域が狭く、貯油量が多くなると、オイルの冷却が効果的に行われなくなる。
また、シリンダヘッドの吸入室に隣接して貯油室を配置すると、シリンダヘッドが全体的に軸方向に延設され、圧縮機の軸方向の体格が増大する方向となり、好ましくない。 However, the compressor described in
In the cylinder head, a discharge chamber is disposed at the center thereof, and a suction chamber is disposed so as to surround the periphery of the cylinder head. Therefore, the area adjacent to the suction chamber is narrower than the oil storage space of the oil storage chamber, and the oil storage When the amount increases, the oil cannot be cooled effectively.
Further, if the oil storage chamber is disposed adjacent to the suction chamber of the cylinder head, the cylinder head is extended in the axial direction as a whole, and the size of the compressor in the axial direction increases, which is not preferable.
図1は本発明の一実施形態を示す冷媒圧縮機(特に可変容量圧縮機)の断面図である。また、図2はシリンダヘッドをバルブプレート側の端面より見た図、図3は貯油室の断面図(図2のA-A断面図)、図4は分離室の断面図である。 Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a sectional view of a refrigerant compressor (particularly a variable capacity compressor) showing an embodiment of the present invention. 2 is a view of the cylinder head as viewed from the end surface on the valve plate side, FIG. 3 is a cross-sectional view of the oil storage chamber (AA cross-sectional view of FIG. 2), and FIG. 4 is a cross-sectional view of the separation chamber.
可変容量圧縮機100は、軸回りに複数の平行なシリンダボア101aを有するシリンダブロック101と、シリンダブロック101の一端に設けられたフロントハウジング102と、シリンダブロック101の他端にバルブプレート(弁・ポート形成体)103を介して設けられたシリンダヘッド(リアハウジング)104とを備えている。そして、これらは図示しないガスケットを介して締結用ボルト140により共締めされ、圧縮機ハウジングをなしている。 First, the basic configuration of the variable capacity compressor will be described.
The
すなわち、全ピストン117の前後の圧力差によるモーメントにより、斜板107の傾角が変化することから、クランク室105の圧力により斜板107の傾角を任意に制御可能である。 In this
That is, the tilt angle of the
また、クランク室105内の冷媒は、駆動軸106外周とベアリング115、116との隙間、空間122、及び、バルブプレート103に形成されたオリフィス103cを経由した抽気通路を介して、吸入室119に流れる。 For this control, the
In addition, the refrigerant in the
オイル還流機構は、吐出冷媒からオイルを分離するオイル分離部と、分離されたオイルを貯留する貯油室と、貯油室から吸入側(低圧領域)へオイルを戻すオイル戻し通路と、を含んで構成される。 Next, an oil recirculation mechanism that separates the lubricating oil from the discharged refrigerant and returns it to the compressor lubricating portion will be described.
The oil recirculation mechanism includes an oil separation portion that separates oil from the discharged refrigerant, an oil storage chamber that stores the separated oil, and an oil return passage that returns the oil from the oil storage chamber to the suction side (low pressure region). Is done.
貯油室132は、シリンダヘッド104と一体にその径方向に延設されてシリンダヘッド外面に開放端を有する筒状部と、前記開放端を閉塞する閉塞部材134とから構成される。詳しくは、貯油室(筒状部)132は、吸入室119の中心を通り、吸入室119を斜めに横断するようにシリンダヘッド104の径方向にほぼ円筒状に延設されて、シリンダヘッド104の外側かつ下側に向けて開放端を有し、この開放端は閉塞部材134により閉塞されている。そして、貯油室132は、開放端に向かうに連れ開口断面積が増大するように形成され、下部領域ほど貯油スペースが拡大するようになっている。 An
The
貯油室132は吸入室119の中心つまり駆動軸106の軸心の延長線と交差するように、吸入室119を斜めに横断するように配置されているため、シリンダヘッド104を図2の方向から見ると貯油室132の下部領域から上部領域までほとんどの領域が吸入室119内に膨出している。また、図3は貯油室132の断面(図2のA-A断面)であるが、ほぼ円筒形状に形成された貯油室132の軸中心が吸入室119内に膨出しており、貯油室132の周壁の半分以上が吸入室119に面している。 The
The
尚、貯油室132をシリンダヘッド104内部に膨出させることにより、貯油室132を設けることによる可変容量圧縮機100の体格増大を抑制でき、また筒状にすることにより体格増大領域を部分的に限定できる。 Therefore, the high temperature oil stored in the
In addition, by expanding the
従って、分離室104b2で分離された高温のオイルは貯油室132に貯留されて膨出部132aにより吸入室119内の低温の冷媒により冷却され、貯油室132と吸入室119との圧力差によりオリフィス136を介して吸入室119に還流される。還流されたオイルはシリンダボア101aに吸入され、可変容量圧縮機100の内部を潤滑する。 On the other hand, in order to return the oil separated and stored in the
Accordingly, the high-temperature oil separated in the separation chamber 104b2 is stored in the
図5は本発明の他の実施形態を示す冷媒圧縮機の要部断面図である。尚、図1と同一要素には同一符号を付して説明を省略し、異なる要素について説明する。 Next, another embodiment of the present invention will be described with reference to FIG.
FIG. 5 is a cross-sectional view of an essential part of a refrigerant compressor showing another embodiment of the present invention. The same elements as those in FIG. 1 are denoted by the same reference numerals, description thereof is omitted, and different elements will be described.
例えば、実施形態では、オイル分離部は分離パイプ130を用いた遠心分離方式としたが、分離パイプ130が無くてもよい。また、その他のオイル分離方式、例えば衝突分離方式としてもよいし、あるいは吐出室120内のオイルが停留しやすい領域と貯油室132とを連通するようにしてもよい。 The illustrated embodiments are merely examples of the present invention, and the present invention is not limited to those directly described by the described embodiments, and various improvements and modifications made by those skilled in the art within the scope of the claims. Needless to say, it encompasses changes.
For example, in the embodiment, the oil separation unit is a centrifugal separation method using the
また、実施形態では、貯油室132は円筒状の筒状部により構成されるが、筒状部は例えば略四角形などの角筒状であってもよい。
また、吸入通路104aに吸入室119内に突出する突出部を設けるようにしてもよく、このようにすれば、吸入冷媒流によるオイルの冷却がさらに効果的に行われるようになる。 Further, in the embodiment, the
Further, in the embodiment, the
In addition, a protruding portion that protrudes into the
101 シリンダブロック
101a シリンダボア
102 フロントハウジング
102a ボス部
103 バルブプレート
103a 吸入ポート
103b 吐出ポート
103c オリフィス
104 シリンダヘッド
104a 吸入通路
104b 吐出通路
104b1 導出孔
104b2 分離室
104b3 導入孔
105 クランク室
106 駆動軸
107 斜板
108 ロータ
109 連結部
110、111 コイルばね
112 軸封装置
113、114、115、116 ベアリング
117 ピストン
117a くぼみ
118 シュー
119 吸入室
120 吐出室
121 給気通路
122 空間
123 連通路
130 分離パイプ
132 貯油室
132a 膨出部
134 閉塞部材
136 オリフィス
140 締結用ボルト
200 容量制御弁 100
Claims (6)
- 軸回りに複数の平行なシリンダボアを有するシリンダブロックと、
前記シリンダブロックの一端側にバルブプレートを介して配設されるシリンダヘッドと、
前記シリンダブロックの他端側から前記シリンダボアに挿入されて往復運動し、前記シリンダヘッド側の吸入室から吸入した冷媒を圧縮して前記シリンダヘッド側の吐出室に吐出するピストンと、
前記吐出室に吐出される冷媒から潤滑オイルを分離して圧縮機潤滑部に戻すオイル還流機構と、
を含んで構成される冷媒圧縮機であって、
前記シリンダヘッドは、その内部に、前記吸入室と、前記吐出室と、外部冷媒回路から吸入される冷媒を前記吸入室に導入する吸入通路と、前記吐出室に吐出される冷媒を外部冷媒回路に向けて導出する吐出通路と、を有し、
前記吸入室は、前記シリンダヘッドの径方向の中心部側に配置され、前記吐出室は、前記シリンダヘッドの径方向の外側に前記吸入室を取り囲むように環状に配置され、
前記オイル還流機構は、分離されたオイルを貯留する貯油室を有し、
前記貯油室は、前記シリンダヘッドと一体にその径方向に延設されてシリンダヘッド外面に開放端を有する筒状部と、前記開放端を閉塞する閉塞部材と、から構成され、
前記筒状部は、前記吸入室側に膨出する膨出部を有することを特徴とする、冷媒圧縮機。 A cylinder block having a plurality of parallel cylinder bores around an axis;
A cylinder head disposed on one end side of the cylinder block via a valve plate;
A piston that is inserted into the cylinder bore from the other end side of the cylinder block and reciprocates, compresses the refrigerant sucked from the suction chamber on the cylinder head side, and discharges it to the discharge chamber on the cylinder head side;
An oil recirculation mechanism that separates the lubricating oil from the refrigerant discharged into the discharge chamber and returns it to the compressor lubricating portion;
A refrigerant compressor comprising:
The cylinder head includes therein the suction chamber, the discharge chamber, a suction passage for introducing the refrigerant sucked from an external refrigerant circuit into the suction chamber, and the refrigerant discharged into the discharge chamber as an external refrigerant circuit. A discharge passage leading out toward
The suction chamber is disposed on the radial center portion side of the cylinder head, and the discharge chamber is disposed in an annular shape so as to surround the suction chamber on the outer side in the radial direction of the cylinder head,
The oil recirculation mechanism has an oil storage chamber for storing separated oil,
The oil storage chamber is composed of a cylindrical portion that extends in the radial direction integrally with the cylinder head and has an open end on the outer surface of the cylinder head, and a closing member that closes the open end,
The refrigerant compressor according to claim 1, wherein the tubular portion has a bulging portion that bulges toward the suction chamber. - 前記膨出部は、前記貯油室の少なくとも下部領域を含むことを特徴とする、請求項1記載の冷媒圧縮機。 The refrigerant compressor according to claim 1, wherein the bulging portion includes at least a lower region of the oil storage chamber.
- 前記膨出部が前記シリンダヘッドの軸線と交差するように、前記貯油室が配設されていることを特徴とする、請求項2記載の冷媒圧縮機。 3. The refrigerant compressor according to claim 2, wherein the oil storage chamber is disposed so that the bulging portion intersects an axis of the cylinder head.
- 前記貯油室は、前記吸入室を横断するように配設されていることを特徴とする、請求項3記載の冷媒圧縮機。 The refrigerant compressor according to claim 3, wherein the oil storage chamber is disposed so as to cross the suction chamber.
- 前記吸入通路を前記吸入室内に延長した仮想線が前記膨出部と交差するように、前記吸入通路が配設されていることを特徴とする、請求項1記載の冷媒圧縮機。 The refrigerant compressor according to claim 1, wherein the suction passage is disposed so that an imaginary line extending the suction passage into the suction chamber intersects the bulging portion.
- 前記貯油室の上部領域は、前記吸入室側に膨出しないか、下部領域より膨出容積が小さくなっていることを特徴とする、請求項2記載の冷媒圧縮機。 The refrigerant compressor according to claim 2, wherein the upper region of the oil storage chamber does not bulge toward the suction chamber or has a smaller bulge volume than the lower region.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US13/997,543 US20130272903A1 (en) | 2010-12-24 | 2011-11-17 | Refrigerant Compressor |
DE112011104509.3T DE112011104509B4 (en) | 2010-12-24 | 2011-11-17 | refrigerant compressor |
CN201180061503.4A CN103282661B (en) | 2010-12-24 | 2011-11-17 | Coolant compressor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2010-287024 | 2010-12-24 | ||
JP2010287024A JP5413850B2 (en) | 2010-12-24 | 2010-12-24 | Refrigerant compressor |
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WO2012086347A1 true WO2012086347A1 (en) | 2012-06-28 |
Family
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PCT/JP2011/076543 WO2012086347A1 (en) | 2010-12-24 | 2011-11-17 | Refrigerant compressor |
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US (1) | US20130272903A1 (en) |
JP (1) | JP5413850B2 (en) |
CN (1) | CN103282661B (en) |
DE (1) | DE112011104509B4 (en) |
WO (1) | WO2012086347A1 (en) |
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CN106194668B (en) * | 2016-07-21 | 2019-05-03 | 江苏盈科汽车空调有限公司 | A kind of compressor of air conditioner end cap |
CN106168206B (en) * | 2016-07-21 | 2018-08-31 | 江苏盈科汽车空调有限公司 | A kind of air conditioning for automobiles piston cylinder exhaust valve plate component |
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2010
- 2010-12-24 JP JP2010287024A patent/JP5413850B2/en active Active
-
2011
- 2011-11-17 WO PCT/JP2011/076543 patent/WO2012086347A1/en active Application Filing
- 2011-11-17 US US13/997,543 patent/US20130272903A1/en not_active Abandoned
- 2011-11-17 DE DE112011104509.3T patent/DE112011104509B4/en active Active
- 2011-11-17 CN CN201180061503.4A patent/CN103282661B/en active Active
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Also Published As
Publication number | Publication date |
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CN103282661B (en) | 2015-12-16 |
JP5413850B2 (en) | 2014-02-12 |
US20130272903A1 (en) | 2013-10-17 |
JP2012132407A (en) | 2012-07-12 |
DE112011104509T5 (en) | 2013-11-28 |
CN103282661A (en) | 2013-09-04 |
DE112011104509B4 (en) | 2022-01-20 |
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