CN1153870A - 具有增强流动性能的阀口入口的回转式压缩机 - Google Patents

具有增强流动性能的阀口入口的回转式压缩机 Download PDF

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CN1153870A
CN1153870A CN96121002A CN96121002A CN1153870A CN 1153870 A CN1153870 A CN 1153870A CN 96121002 A CN96121002 A CN 96121002A CN 96121002 A CN96121002 A CN 96121002A CN 1153870 A CN1153870 A CN 1153870A
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compressor set
chamfering
canning
cylinder assembly
plunger
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CN1086448C (zh
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P·J·布什内尔
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Carrier Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • F04C2250/102—Geometry of the inlet or outlet of the outlet

Abstract

在一回转式压缩机的电动机端轴承中，于其排气口区域内设置一减压部分。减压部分类似于为一倒角等并通过使流道流畅而增强流动。减压作用限于覆盖气缸孔的电动机端轴承部分，以限制其对余隙容积的影响。

Description

具有增强流动性能的阀口入口的回转式压缩机
在一固定叶片式或旋转柱塞式的回转式压缩机中，排气口是设在电动机端轴承中。排气口的位置为其一半左右复盖柱塞孔而剩下部分则复盖气缸。被排气口复盖的气缸部分开有凹槽以提供一从气缸孔到排气口的流路。相应地，排气口对着柱塞孔和凹槽。到排气口的入口一般加以倒角以提供一流畅的流路。
余隙容积是在压缩过程结束时未排出的压缩气体的容积，由于它被加压但未排出，而且将膨胀而形成部分吸入容积，因此代表一种损失。在旋转柱塞式压缩机的情况下，余隙容积由气缸凹槽容积和排气阀上游的排气口的容积组成。一部分排气口容积由在形成倒角过程中去除材料的容积组成，其中一部分复盖气缸开有凹槽的部分。
在电动机端轴承上形成有一月牙形倒角。该倒角为从压缩室到排气口的流动提供一光滑过渡。另外，该倒角并不延伸到复盖气缸中凹槽的排出口部分，因此避免了不必要地加到余隙容积上。
本发明的一个目的在于减少排气阀两端的压力降。
本发明的另一个目的在于使余隙容积减少到最小程度。
本发明的再一目的在于提供一种用于排气流动的流畅过渡。这些目的及其它一些目的通过下面的具体说明将看得更清楚，并通过本发明的下述方案实现。
本发明的基本特点是月牙形倒角设置在围绕排气口和复盖柱塞孔的电动机端轴承部上。
图1为通过吸气结构的旋转柱塞式压缩机的垂直剖视图；
图2为沿图1中2-2线的剖视图；
图3为对应于图1但通过作为本发明主题的排气结构的局部垂直剖视图；
图4为电动机轴承的泵端部视图；
图5为沿图4中5-5线的剖面图；
图6为与图5对应的表示一第一改进实施例的视图；以及
图7为与图5对应的表示一第二改进实施例的视图。
在图1和图2中，标号10总的表示一立式、高侧旋转柱塞式压缩机。标号12总的表示外壳或壳体。吸气管16与外壳12密封并在与汽化器(未示)相连接的贮气罐14与吸入室S之间提供流体连通。吸气室S由气缸20的缸孔20-1、柱塞22、泵端轴承24和电动机端轴承28形成。
偏心轴40包括一支承在泵端轴承24的孔24-1中的部分40-1，容置在柱塞22的内孔22-1中的偏心部40-2，以及支承在电动机端轴承28的内孔28-1中的部分40-3。吸油管34从部分40-1的孔中伸入油槽36。定子42通过热压配合、焊接或任何其它适当手段被固定在外壳12上。转子44通过热压配合适当地固定在轴40上并设置在定子42的内孔42-1内，并与它们相配合工作以构成一电动机。叶片30受弹簧31偏压而与柱塞22进入接触。
如图3所示，排气口28-2系在电动机端轴承28中形成，它部分复盖孔20-1并复盖排气凹槽20-3，该排气凹槽如图2所示，它提供一从压缩室C到排气口28-2的流路。如现有技术一样，通过排气阀38和隔开的阀档块39对排气口28-2进行顺次复盖。如前所述，压缩孔10一般为现有技术。本发明则是增加了倒角28-3，如图3-5所示。倒角28-3为月牙形，其标准圆周角度为200°并对应于复盖孔20-1，具体地说是压缩室C的排气口部分28-2。除了月牙的尖端部可能形成从倒角到无倒角的过渡部分外，该倒角不会复盖气缸20因而并不增加余隙容积。倒角28-3是设置在从压缩室C流向排气口28-2处，然而，如果在该处不设倒角的话，则将要在一个90°边缘上流动从而带来附加损失。如图5所示，倒角28-3所构成的角的角度范围为30-60°，而倒角的尺寸为0.5-0.8mm。
工作时，转子44和偏心轴40作为一个单元转动，偏心部40-2引起柱塞22移动。通过吸油管34从油槽36将油吸入一起离心泵作用的孔40-4中。泵吸作用的大小要取决于轴40的转速。被传送到孔40-4的油可流入在部分40-1、偏心部分40-2及部分40-3上的一系列径向延伸通道以分别润滑轴承24、柱塞22和轴承28。柱塞22与叶片30以传统方式共同配合工作而使气体通过吸气管16和通道20-2被吸至吸气室S。吸气室S中的气体被收集、压缩并通过一由倒角28-3和凹槽20-3形成的流路从压缩室C排入排气口28-2。高压气体将阀38打开并通入消音器32内部。压缩气体经消音器32进入外壳12内部，并通过旋转着的转子44与定子42间的环形间隙和排气管60通向一致冷循环(未示)的冷凝器。
在压缩过程完成时，柱塞22将在凹槽20-3的区域内与孔20-1相切。余隙容积将是凹槽20-3的容积、排气口28-2的容积以及从倒角28-3上去除的材料的容积。由于倒角28-3的角度范围较小却提供了一流畅的流动路径，因而可使余隙容积减少到最小程度。然而保持有为有利于流动所需要的倒角部28-3。
除了如倒角28-3情形那样的斜角边外，还可采用其它的形状。图6表示采用圆形弯曲部或圆角128-3来代替倒角28-3。与此类似，图7则表示采用椭圆弯曲部228-3。圆角128-3和弯曲部228-3象倒角28-3一样相当于200°的圆周角度，并具有大约0.5-0.8mm的弦长。虽然本发明是根据一种立式、可变速的压缩机进行图示和说明的，然而本领域的技术人员还可作出其它变型。例如本发明对卧式和立式均可适用。同样，电动机可为一变速电动机。因此本发明的范围只能由所附权利要求加以限定。

Claims (7)

1.一种高测回转式压缩机装置(10)，它包括：具有一第一端和一第二端的外壳装置(12)；气缸装置(20)，所述气缸具有一含有一泵装置的内孔(20-1)，所述泵装置包括一叶片(30)和一柱塞(22)，所述柱塞与所述气缸装置共同配合工作以形成吸气室(S)和压缩室(C)，所述气缸被固定地设置在所述外壳装置靠近所述第一端处；第一轴承装置(24)，它被固定在所述气缸装置上并朝所述第一端延伸；第二轴承装置(28)，它被固定在所述气缸装置上复盖所述内孔并朝所述第二端延伸；电动机装置，它包括一转子装置(44)和一定子装置(42)，所述定子装置在所述气缸装置与所述第二端之间被固定地设置在所述外壳装置内并与所述气缸装置和所述第二轴承装置轴向隔开；偏心轴装置(40)，它由所述第一和第二轴承装置加以支承，并包括运转地连接到所述柱塞上的偏心装置(40-2)，所述转子装置被固定在所述轴装置上成为一体并设置在所述定子内以形成一圆环形间隙(42-1)；吸气装置(16)，用于向所述泵装置供给气体；排气装置(60)，它被流畅地连接到所述外壳装置上；一排气流道，它在所述压缩室和所述排气装置之间延伸并依次包括一位于所述油缸装置上的凹槽(20-3)，其特征在于，所述排气流道，其一减压部分(28-3)位于所述第二轴承装置内并基本只复盖所述内孔；一排出口装置(28-2)，它位于所述第二轴承装置内；阀装置(38)，它复盖第二轴承装置；以及消音器装置，它设置在所述阀装置之上；所述凹槽和所述减压部分共同配合以将流动导入所述排气口装置而将流体从所述排气口装置排入所述消音器装置并进入所述外壳装置内部。
2.如权利要求1所述的压缩机装置，其特征在于，所述减压部分是一倒角。
3.如权利要求2所述的压缩机装置，其特征在于，所述倒角是月牙形的。
4.如权利要求3所述的压缩机装置，其特征在于，所述倒角的标准角度大小为200°。
5.如权利要求1所述的压缩机装置，其特征在于，所述减压部分是弯曲部。
6.如权利要求5所述的压缩机装置，其特征在于，所述弯曲的减压部分是月牙形的。
7.如权利要求6所述的压缩机装置，其特征在于，所述月牙形部分的标准角度大小为200°。
CN96121002A 1995-11-16 1996-11-15 具有增强流动性能的阀口入口的回转式压缩机 Expired - Fee Related CN1086448C (zh)

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BR (1) BR9605502A (zh)
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CN107120279A (zh) * 2017-06-30 2017-09-01 广东美芝制冷设备有限公司 压缩机及具有其的制冷装置
CN107202010A (zh) * 2017-06-30 2017-09-26 广东美芝制冷设备有限公司 压缩机及具有其的制冷装置
CN108071587A (zh) * 2016-11-16 2018-05-25 富士通将军股份有限公司 旋转式压缩机

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CN107120279A (zh) * 2017-06-30 2017-09-01 广东美芝制冷设备有限公司 压缩机及具有其的制冷装置
CN107202010A (zh) * 2017-06-30 2017-09-26 广东美芝制冷设备有限公司 压缩机及具有其的制冷装置
CN107202010B (zh) * 2017-06-30 2021-02-12 广东美芝制冷设备有限公司 压缩机及具有其的制冷装置

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CN1086448C (zh) 2002-06-19
BR9605502A (pt) 1998-08-11
MY112343A (en) 2001-05-31
IT1287163B1 (it) 1998-08-04
JPH09170576A (ja) 1997-06-30
TW423613U (en) 2001-02-21
KR970027870A (ko) 1997-06-24
US5676535A (en) 1997-10-14
ITMI962369A1 (it) 1998-05-14
JP3024743B2 (ja) 2000-03-21
MXPA96005345A (es) 2002-04-19
KR100214192B1 (ko) 1999-08-02
KR970027839A (ko) 1997-06-24
ITMI962369A0 (it) 1996-11-14

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