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CN102124224A - 斜盘式压缩机的排出止回阀 - Google Patents

斜盘式压缩机的排出止回阀 Download PDF

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CN102124224A
CN102124224A CN2009801315275A CN200980131527A CN102124224A CN 102124224 A CN102124224 A CN 102124224A CN 2009801315275 A CN2009801315275 A CN 2009801315275A CN 200980131527 A CN200980131527 A CN 200980131527A CN 102124224 A CN102124224 A CN 102124224A
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refrigerant
valve body
discharge
swash plate
check valve
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CN102124224B (zh
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朴在锡
金基范
李建祜
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Douyuan Electron
Douyuan College
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Douyuan College
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-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
    • F04B27/10Multi-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 stationary cylinders
    • F04B27/1009Distribution members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-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
    • F04B27/10Multi-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 stationary cylinders
    • F04B27/1009Distribution members
    • F04B27/1018Cylindrical distribution members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-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
    • F04B27/10Multi-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 stationary cylinders
    • F04B27/1036Component parts, details, e.g. sealings, lubrication
    • F04B27/1045Cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-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
    • F04B27/10Multi-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 stationary cylinders
    • F04B27/1036Component parts, details, e.g. sealings, lubrication
    • F04B27/1081Casings, housings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/10Adaptations or arrangements of distribution members
    • F04B39/1066Valve plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04Wound springs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00Fluid parameters
    • F04B2205/04Pressure in the outlet chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00Working fluid
    • F05B2210/10Kind or type
    • F05B2210/12Kind or type gaseous, i.e. compressible
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00Working fluid
    • F05B2210/10Kind or type
    • F05B2210/14Refrigerants with particular properties, e.g. HFC-134a
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00Pumps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7904Reciprocating valves
    • Y10T137/7922Spring biased
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7904Reciprocating valves
    • Y10T137/7922Spring biased
    • Y10T137/7929Spring coaxial with valve
    • Y10T137/7937Cage-type guide for stemless valves

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  • Mechanical Engineering (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Check Valves (AREA)
  • Compressor (AREA)

Abstract

本发明涉及一种斜盘式压缩机的排出止回阀,并且所述排出止回阀包含:阀体,其中形成有致冷剂进口和致冷剂出口;移动主体其安装于所述阀体内,所述移动主体一起打开和关闭所述致冷剂进口和所述致冷剂出口;和弹簧,其以某一压力对所述移动构件施压;在所述阀体上形成分离的致冷剂出口腔,并且所述致冷剂出口腔旨在排放在以压力差设定下或更小压力差下操作期间产生的漏气,以便可以取决于所述压力差设定,平滑地排出致冷剂,从而能够增强压缩机效率和可靠性。

Description

斜盘式压缩机的排出止回阀
技术领域
本发明涉及一种斜盘式压缩机的排出阀,并且更具体来说涉及一种排出止回阀,该排出止回阀取决于预置压力差而平滑打开,从而改进压缩机的可靠性。
背景技术
通常,斜盘式压缩机广泛用于车辆的空调系统中,并且所述斜盘式压缩机包括活塞、活塞驱动单元、气缸体以及通用阀门。
在此类斜盘式压缩机中,倾斜角度在曲柄室内变化的斜盘随其轴旋转而旋转,并且在斜盘旋转的同时,活塞往复运动以执行压缩操作。
在这种情况下,吸入室中的致冷剂被抽吸到气缸中并且通过活塞的往复运动而释放到排出室,在该情况下,根据曲柄室内压力与吸入室内压力之差,使斜盘的倾斜角度变化以控制所排出致冷剂的量。
因此,斜盘式压缩机从吸入室抽吸致冷剂,并且借助于活塞来压缩致冷剂,而且将经压缩的致冷剂排出到排出室以重复冷却循环。
然后,将用于以某一压力排出经压缩的致冷剂并且防止所排出气体反向流动到压缩机的排出止回阀安装于与排出室连通的排出口中。
无离合器压缩机中,当压缩机在预置压力差以下操作时(当空调关闭或当斜盘在倾斜角度低于某一值的情况下操作时),使排出止回阀维持关闭状态,并且仅当所述压力差高于预置压力差时,使所述排出止回阀打开。
然而,在传统技术中,当压缩机以低于预置压力差来驱动时,在可移动的构件(阀门)与阀体(阀座)之间的细微间隙中产生少量漏气,且漏气穿过阀体而流动到可移动的构件的后表面上,从而使得由于可移动的构件后表面上弹簧的负载和所述漏气的压力缘故,难以在预定压力下打开阀门。
发明内容
【技术问题】
因此,本发明的目的是提供一种斜盘式压缩机的排出止回阀,所述排出止回阀根据最初设置的压力差来正常打开,以使得在以低于预置压力差来操作压缩机期间产生的漏气通过阀体外部的排出管而得到释放,而不会不合需要地残留。
【技术解决方案】
为了实现上述目的,本发明提供了一种排出止回阀,其安装于斜盘式压缩机的排出口中,所述排出止回阀包含:阀体,其具有致冷剂进口和至少一个致冷剂出口;可移动的主体,其安装于所述阀体中并且经设置以使所述致冷剂进口和所述致冷剂出口一起打开和关闭;和弹簧,其经设置为以某一压力推送所述可移动的主体,其中在所述阀体中分别形成至少一个致冷剂排放孔,所述致冷剂排放孔用于将以低于预置压力差来操作期间产生的漏气排放到所述阀体的外部。
优选地,在所述阀体中沿所述阀体的周向交替地形成多个致冷剂出口和多个致冷剂排放孔。
优选地,所述阀体具有沿所述可移动的主体的移动方向形成的小直径部分和大直径部分,并且在所述小直径部分与所述大直径部分之间形成阶梯式部分,所述阶梯式部分经设置以限制所述可移动的主体的运动。
优选地,使所述大直径部分的一端打开,以使得精整构件联接到打开的空间并且所述弹簧插放入所述精整构件与所述可移动的构件之间。
附图说明
图1是图示根据本发明的实施例的斜盘式压缩机的剖面图;
图2是图示图1的排出止回阀的分解透视图;
图3图示图1的排出止回阀的前视图和剖面图;
图4图示图3的排出止回阀的致冷剂排放孔的另一个实施例的前视图和剖面图;和
图5图示图3的排出止回阀的致冷剂排放孔的又一个实施例的前视图和剖面图。
其中,附图标记说明如下:
100排出止回阀     110阀体
110a小直径部分    110b大直径部分
110c致冷剂进口    111致冷剂出口
120可移动的构件   130弹簧
150、150′、150″致冷剂排放孔
具体实施方式
【用于发明的模式】
下文中,将参照附图详细描述本发明的示例性实施例。
首先,将可变排量斜盘式压缩机1000描述为具有根据本发明的排出止回阀100的斜盘式压缩机。
如图1中所图示,可变排量斜盘式压缩机1000包括:气缸体10,其具有沿其纵向彼此平行地形成的多个气缸膛孔12;前壳16,其密封联接到气缸体10的前侧;和后壳18,其密封联接到气缸体10的后侧,其中在前壳16与后壳18之间插放入有阀板20。
在前壳16内提供曲柄室86,且主动轴44的一端在前壳16的中心附近受到可旋转地支撑,并且主动轴44的相对端穿过曲柄室86以由安装于气缸体10中的轴承支撑。
环绕曲柄室86内的主动轴44安装凸耳板54和斜盘50。
各自具有经线性穿孔的导孔64的一对动力传输支撑臂62突出于凸耳板54的一个表面上,并且球状物66形成于斜盘50的一个表面上,以使得在斜盘50的倾斜角度随凸耳板54旋转而变化的情况下,斜盘50的球状物66在凸耳板54的导孔64内滑动。
在斜盘50的外侧表面上提供鞋状物76,以使得侧表面可滑动地插入各活塞14中。
因此,随着斜盘50在倾斜情况下旋转,插入斜盘50外侧表面中的活塞14在气缸体10的气缸膛孔12内往复运动,其中鞋状物76被插放入活塞14之间。
在后壳18中形成吸入室22和排出室24,并且在插放入后壳18与气缸体10之间的阀板的对应于气缸膛孔12的多个部分处形成吸入阀32和排出阀36。
吸入室22中的致冷剂被吸入气缸膛孔12中,然后在活塞14的往复运动期间受到压缩并释放到排出室24,在这种情况下,斜盘50的倾斜角度将根据曲柄室86的压力与吸入室22的压力之差来控制所排出的致冷剂的量,从而使得排量控制阀70通过经由气流流动打开和关闭阀来调节曲柄室86的压力和通过调节斜盘50的倾斜角度来控制排出容量。
另外,在后壳18中形成与排出室24连通的排出口25,并且排出止回阀100用于排出以高于预定值的某一压力差压缩的制冷剂,并防止所排出的气体反向流动到压缩机。
下文中,将参照图2到图5详细描述本发明的排出止回阀100。
排出止回阀100经调适以重复执行将从排出室24排出的致冷剂发送到下一个冷却循环的操作,并且排出止回阀100通常包括:阀体110;可移动的构件120,其安装于阀体110中;以及弹簧130,其经设置以某一压力对可移动的构件120施压。
首先,阀体110具有沿其纵向彼此连通的小直径部分110a和大直径部分110b,并且在小直径部分110a与大直径部分110b之间形成阶梯式部分112,该阶梯式部分112经设置以限制下文所述的可移动的构件120的运动。
在小直径部分110a的中心处形成用于引入经压缩的致冷剂的致冷剂进口110c,并且在小直径部分110a的周长上安置用于密封排出口25的O形环c。
另外,在大直径部分110b内安装下文所述的可移动的构件120和弹簧130,并且在大直径部分110b的周长上形成用于释放从致冷剂进口110c引入的致冷剂的致冷剂出口111。
在此,虽然大直径部分110b的一端打开并且分离的精整构件140联接到打开的空间,但本发明并不限于此,而是大直径部分110b和精整构件140可以通过注射成型而整体形成。
具体而言,在大直径部分110b中形成致冷剂排放孔150,以使得以低于预置值的压力差产生的漏气自然地释放到阀体110的外部(排出管)。
也就是说,致冷剂排放孔150经调适以在压缩机的斜盘的倾斜角度增加到高于预定值时,防止阀体110中残留的漏气的背压延迟可移动的构件120的打开。
因此,下文所述的可移动的构件120取决于最初设置的打开/关闭压力差而正常地滑动。
优选的是,以沿阀体110周向的间隔交替地形成致冷剂排放孔150和致冷剂出口111。
在此,虽然致冷剂排放孔150可以呈长孔形式,但本发明并不限于此,而是可以具有诸如多边形、圆形和心形的各种形状。
如图4中所图示,可以在沿可移动的构件120的移动方向的相同线路上间隔布置致冷剂排放孔150′和致冷剂出口111。
此外,如图5中所图示,致冷剂排放孔150″可以与致冷剂出口111的一端连通。
同时,可移动的构件120可以在其对应于阀体110的大直径110b的内径时,可滑动地移动以一起打开和关闭致冷剂进口110c和致冷剂出口111。
更详细来说,可移动的构件120具有圆板形状以关闭致冷剂进口110c,并且所述圆板形状的周围被弯曲以延伸出某一高度。
此外,将弹簧130的一端插入并固定到精整构件140,并且弹簧130的相对端推送可移动的构件120。
弹簧130可以调节压力差,并且取决于弹簧130的回弹性通过所述压力差来打开和关闭可移动的构件120。
在根据本发明的实施例的斜盘式压缩机的排出止回阀100中,如果经压缩的致冷剂压力高于对冷凝器施加的压力和操作空调过程中弹簧130的回弹力,那么移动可移动的构件120以同时向阀体110的致冷剂出口111释放致冷剂。也就是说,由于排出压力超过预置压力差而使止回阀100打开。
此后,由于在空调被关闭或斜盘以低于某一值的倾斜角度受到驱动时,弹簧130的压力大于排出室中的致冷剂压力,所以通过推送可移动的构件120而使阀体110的致冷剂进口110c关闭。
然后,阀体110的内部通过致冷剂排放孔150与外部连通,漏气通过致冷剂排放孔150释放到排出管而不会对可移动的构件120施加背压。
因此,如果斜盘的倾斜角度增加到高于预定值并且排出压力所致的压力差超过驱动空调所致的预置值,那么使可移动的构件120移动以打开阀门。
在这种情况下,由于未向可移动的构件120施加漏气所致的背压并且仅存在弹簧130所致的回弹阻力,所以防止了阀门延迟。因此,在排出止回阀100中,可以根据最初设置的压力差,平滑地打开和关闭可移动的构件120。
【工业可用性】
根据本发明,由于在排出止回阀中形成了致冷剂排放孔以用于将在低于预置压力差下操作期间产生的漏气排放到阀体外部,所以可以根据所设置的压力差来平滑地排出致冷剂,从而有可能同时改进压缩机的效率和可靠性。

Claims (4)

1.一种排出止回阀,其安装于斜盘式压缩机的排出口中,所述排出止回阀包含:
阀体,其具有致冷剂进口和至少一个致冷剂出口;
可移动的主体,其安装于所述阀体中并且经设置以使所述致冷剂进口和所述致冷剂出口一起打开和关闭;和
弹簧,其经设置以某一压力推送所述可移动的主体,
其中在所述阀体中分别形成至少一个致冷剂排放孔,所述致冷剂排放孔用于将在以低于预置压力差来操作期间产生的漏气排放到所述阀体的外部。
2.如权利要求1所述的排出止回阀,其中在所述阀体中沿所述阀体的周向交替地形成多个致冷剂出口和多个致冷剂排放孔。
3.如权利要求1或2所述的排出止回阀,其中所述阀体具有沿所述可移动的主体的移动方向形成的小直径部分和大直径部分,并且在所述小直径部分与所述大直径部分之间形成阶梯式部分,所述阶梯式部分经设置以限制所述可移动的主体的运动。
4.如权利要求3所述的排出止回阀,其中使所述大直径部分的一端打开,以使得精整构件联接到所述打开的空间并且所述弹簧插放入所述精整构件与所述可移动的构件之间。
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