CN1871435A - 具有扩大的阀座面积的往复式压缩机 - Google Patents
具有扩大的阀座面积的往复式压缩机 Download PDFInfo
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- CN1871435A CN1871435A CNA2004800293365A CN200480029336A CN1871435A CN 1871435 A CN1871435 A CN 1871435A CN A2004800293365 A CNA2004800293365 A CN A2004800293365A CN 200480029336 A CN200480029336 A CN 200480029336A CN 1871435 A CN1871435 A CN 1871435A
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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
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
-
- 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
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
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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
- F04B39/125—Cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/12—Kind or type gaseous, i.e. compressible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7879—Resilient material valve
- Y10T137/7888—With valve member flexing about securement
- Y10T137/7891—Flap or reed
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
- Check Valves (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
一种往复式压缩机具有其阀座内侧面积大于排出口面积的排出阀。与优选实施例中的阀口相比,阀座还具有截然不同的形状。阀座内增大的面积产生了倾向于由压缩流体打开阀的增大力。另一方面,由于阀口仍保持相对较小,流动损失就不会显著地增大。
Description
技术领域
本发明涉及往复式压缩机的排出阀和阀座,其中阀座内侧的面积明显大于通向排出阀端口的面积。
背景技术
往复式压缩机通常包括可在气缸内运动的活塞。气缸一端处的阀板有选择地允许待压缩流体通过进口阀流入气缸。阀板还包括排出阀,以控制压缩气体从气缸中流出。在阀板的一个普通布置中,进口阀布置在气缸上径向向外的位置处,而排出阀布置在中心位置处。排出阀位于阀板的外表面上。排出口经由阀板通向排出阀。通常,排出阀坐在阀板上的阀座上。阀座通常包围着排出口,以使得限定在阀座内侧的面积等于或稍大于排出口面积。
在这种压缩机的排出阀的设计中,存在着权衡。尤其,排出口面积与一个通称为“流动损失”的量成比例。流动损失表示效率的降低,因为其表示已经被压缩但是却没有被从气缸中向外驱动到下游用处的流体。也就是说,排出口中的流体在活塞达到其冲程末端时没有再被从排出阀中驱动出去。所有进入所述压缩流体内的能量就“损失”了。因此,过度增大排出口的大小并不是有利的。
另一方面,正是阀座内的面积来控制由压缩流体所施加的用以打开排出阀并允许流体从内腔中流出的力的大小。在某些应用中,希望在没有显著增大压缩流体压力的前提下增大这个力。
迄今为止,基于对将要利用往复式压缩机的应用的评估,往复式压缩机的设计者已经将阀座内的面积和排出口面积选择为在某种程度上相对而言相等的值。实际上,由于很多压缩机应用于很宽范围的操作应用中,因此这种权衡不会总是如希望的那样有利。当在制冷循环中使用比如CO2之类的独特致冷剂时,这个问题就变得特别尖锐。
发明内容
在本发明所公开的实施例中,阀座从排出口径向向外地移动一个明显的程度,使得被驱动的压缩致冷剂通过其上从而打开排出阀的面积明显大于排出口面积。这样,就在没有显著增大流动损失的前提下增大了打开排出阀的力。
在本发明的一个公开实施例中,增大的面积至少等于排出口面积。也就是说,阀座内侧的面积至少为排出口面积的两倍。这样,在流动损失没有任何显著增大的前提下,使阀上的力至少加倍。
阀座可以采用各种形状。尤其,一个优选的阀座具有与排出口形状显著不同的形状。这样,就能在阀板上的可用空间内增大这个面积。
从下述说明书和附图中,能最好地理解到本发明的这些和其它特点,下面是简要的描述。
附图说明
图1A是现有压缩机的横截面视图。
图1B是现有的排出阀。
图2A是本发明的压缩机的横截面视图。
图2B是第一实施例的排出阀的顶视图。
图3A是第二实施例的压缩机的横截面视图。
图3B是第二实施例的排出阀的顶视图。
具体实施方式
如图1A所示,并且如现有技术中已知的那样,压缩机20包括气缸盖22和阀板24。活塞26在气缸盖22内运动以压缩容纳在气缸内腔28中的流体。进口阀30有选择地允许流体流入内腔28。排出口32通向排出单槽阀36。如已知的那样,排出单槽阀36在一端37处被栓住以使得其可以挠曲而远离排出口32并允许压缩的致冷剂从排出口32流出。阻挡件40防止单槽阀36的过度运动。排出阀36坐在阀座38上。
从图1B中能看出,阀座38内侧的面积A1等于排出口32内的面积。因而,作用来打开排出阀36的压缩流体所穿过的面积就等于排出口面积。如上所示,这种现有技术的压缩机中存在着在损失和潜在低打开力之间的权衡。
图2A示出了已经根据本发明进行了修改的压缩机阀板42。排出口44在与内腔28相通的端部处的面积45明显小于阀座46内侧的面积。再次,排出单槽阀50坐在阀座46上。然而,倾斜增大面积48在较小排出口面积的端部49和阀座46之间径向向外地延伸。
如图2B所示,现在就具有明显大于排出口面积A1的增大面积A2。在优选实施例中,面积的这种增大至少等于排出口的公称面积A1。因而,阀50上倾向于打开该阀的力就显著地增大。而且,流体损失仅有名义上的增大,因为面积的增大仅仅超过一小量体积流流出排出口的公称面积A1的端部49。
阀D的外侧面积也在某种程度上限制阀座的形状,因为这个面积不能太大以致于其开始影响周围结构。以上发明的特征,比如阀座的独特形状,允许对阀D的外侧面积进行改变以适应其它必须在阀板内延伸的部件。
图3A示出了第二实施例的阀板52,其具有在端部55和53之间延伸的排出口54。阀座56布置为邻近端部55。在图3A中的57处示出了作用在阀58上的增大面积。从图2B中能看出,阀座56的形状明显不同于排出口54的形状。因而,供流体穿过以作用在阀58上从而打开阀的面积有着明显的增大,同时流动损失只有很小的增大。如图3B所示的形状是一个优选的形状,在排出口54的每一侧上具有凸耳56以限定出额外的流动面积57。虽然示出为这种形状,但是也可以使用其它形状,比如椭圆形、矩形等。
这里再次地,面积增大的量级优选地类似于第一实施例。
再次,这种创造性的压缩机优选地被用来在制冷循环中压缩致冷剂,并且最优选地是压缩比如CO2之类的独特致冷剂。
虽然已经公开了本发明的一个优选实施例,然而本领域的普通技术人员会认识到,一些变型也会落入本发明的范围内。因此,应当研究以下权利要求来确定本发明真正的范围和内容。
Claims (9)
1.一种压缩机,包括:
限定出内腔的气缸盖,以及安装在所述气缸盖端部处的阀板;
在所述气缸盖内朝向和远离所述阀板地往复运动的活塞;
允许流体流入所述内腔的进口阀;和
有选择地允许压缩流体从所述内腔流出的排出阀,所述排出阀被布置在排出口与所述内腔相对的端部处,所述排出口具有第一横截面积,所述排出阀在一端处被栓住以便响应于来自压缩流体的力弯曲而离开所述排出口,并且所述排出阀坐在所述阀板上的阀座上,限定在所述阀座内侧的面积大于所述第一横截面积。
2.如权利要求1所述的压缩机,其中所述进口阀也安装在所述阀座上。
3.如权利要求2所述的压缩机,其中所述进口阀布置在所述排出阀的径向外侧,并且所述排出口通常定位在所述内腔的中心附近。
4.如权利要求1所述的压缩机,其中所述排出口延伸到下游端,并且一个斜坡则延伸到所述阀座,所述阀座定位在排出口的所述下游端的径向外侧。
5.如权利要求1所述的压缩机,其中所述阀座限定了所述阀座内侧的形状,这个形状与所述排出口的所述面积的形状明显不同。
6.如权利要求5所述的压缩机,其中所述阀座具有中心圆形面积,并且两个相对的凸耳从所述圆形面积径向向外地延伸,从而在所述第一横截面积之上限定出了所述增大的面积。
7.如权利要求1所述的压缩机,其中所述阀座内的所述面积大于所述排出口的所述面积至少200%。
8.如权利要求1所述的压缩机,其中所述流体是致冷剂。
9.如权利要求8所述的压缩机,其中所述致冷剂是CO2。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/681,762 | 2003-10-08 | ||
US10/681,762 US7364413B2 (en) | 2003-10-08 | 2003-10-08 | Reciprocating compressor with enlarged valve seat area |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1871435A true CN1871435A (zh) | 2006-11-29 |
CN100460674C CN100460674C (zh) | 2009-02-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004800293365A Expired - Fee Related CN100460674C (zh) | 2003-10-08 | 2004-10-08 | 压缩机 |
Country Status (11)
Country | Link |
---|---|
US (1) | US7364413B2 (zh) |
EP (1) | EP1680576B1 (zh) |
JP (1) | JP2007516378A (zh) |
KR (1) | KR20060061379A (zh) |
CN (1) | CN100460674C (zh) |
AT (1) | ATE454534T1 (zh) |
DE (1) | DE602004025023D1 (zh) |
DK (1) | DK1680576T3 (zh) |
ES (1) | ES2335412T3 (zh) |
TW (1) | TWI272346B (zh) |
WO (1) | WO2005035948A2 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103134016A (zh) * | 2011-11-24 | 2013-06-05 | 海洋王照明科技股份有限公司 | 伸缩杆及具有该伸缩杆的灯具 |
CN105276247A (zh) * | 2014-06-21 | 2016-01-27 | 费斯托股份有限两合公司 | 止回阀和装备有该止回阀的真空工作设备 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5273504B2 (ja) * | 2007-07-26 | 2013-08-28 | 株式会社ヴァレオジャパン | 圧縮機 |
US20110197751A1 (en) * | 2007-08-25 | 2011-08-18 | Ixetic Mac Gmbh | Reciprocating piston machine |
JP5644494B2 (ja) * | 2010-12-29 | 2014-12-24 | ダイキン工業株式会社 | 圧縮機 |
JP5652613B2 (ja) * | 2011-03-08 | 2015-01-14 | サンデン株式会社 | 圧縮機の弁装置 |
WO2014039153A1 (en) | 2012-09-04 | 2014-03-13 | Carrier Corporation | Reciprocating refrigeration compressor suction valve seating |
NL2011765C2 (nl) * | 2013-11-08 | 2015-05-19 | Vitaplus Nederland B V | Inrichting en werkwijze voor het begrenzen van de hoeveelheid fluïdum. |
US10436187B2 (en) | 2015-10-29 | 2019-10-08 | Emerson Climate Technologies, Inc. | Cylinder head assembly for reciprocating compressor |
EP3327287B1 (de) * | 2016-11-23 | 2024-05-15 | PSG Germany GmbH | Membranpumpe |
JP7201311B2 (ja) | 2017-07-19 | 2023-01-10 | 株式会社日立産機システム | 圧縮機 |
DE102021105373A1 (de) * | 2021-03-05 | 2022-09-08 | Mann+Hummel Gmbh | Filterelement, Filterelementanordnung und Filtersystem mit einer Filterelementanordnung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US371688A (en) * | 1887-10-18 | Railroad-joint | ||
GB371688A (en) | 1931-07-03 | 1932-04-28 | Paul Dugelay | Improvements in or relating to valve mechanism for high speed compressors |
DE3909343A1 (de) | 1989-03-22 | 1990-09-27 | Wabco Westinghouse Fahrzeug | Druckventil fuer einen kompressor |
US5370156A (en) * | 1993-11-22 | 1994-12-06 | Peracchio; Aldo A. | Reduced noise valve stop |
US5672053A (en) | 1995-04-03 | 1997-09-30 | General Motors Corporation | Compressor reed valve with valve plate channel |
US6318980B1 (en) | 1997-12-26 | 2001-11-20 | Sanden Corporation | Shape of suction hole and discharge hole of refrigerant compressor |
JPH11210626A (ja) * | 1998-01-21 | 1999-08-03 | Toshiba Corp | 密閉圧縮機 |
US5884665A (en) | 1998-05-19 | 1999-03-23 | General Motors Corporation | Air conditioning reed valve support seat |
JP2002242837A (ja) | 2001-02-14 | 2002-08-28 | Sanyo Electric Co Ltd | 冷媒圧縮機 |
-
2003
- 2003-10-08 US US10/681,762 patent/US7364413B2/en not_active Expired - Fee Related
-
2004
- 2004-10-08 AT AT04794648T patent/ATE454534T1/de not_active IP Right Cessation
- 2004-10-08 WO PCT/US2004/033363 patent/WO2005035948A2/en active Application Filing
- 2004-10-08 ES ES04794648T patent/ES2335412T3/es active Active
- 2004-10-08 DE DE200460025023 patent/DE602004025023D1/de active Active
- 2004-10-08 DK DK04794648T patent/DK1680576T3/da active
- 2004-10-08 TW TW93130581A patent/TWI272346B/zh not_active IP Right Cessation
- 2004-10-08 JP JP2006534420A patent/JP2007516378A/ja active Pending
- 2004-10-08 CN CNB2004800293365A patent/CN100460674C/zh not_active Expired - Fee Related
- 2004-10-08 KR KR1020067006335A patent/KR20060061379A/ko not_active Application Discontinuation
- 2004-10-08 EP EP20040794648 patent/EP1680576B1/en not_active Not-in-force
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103134016A (zh) * | 2011-11-24 | 2013-06-05 | 海洋王照明科技股份有限公司 | 伸缩杆及具有该伸缩杆的灯具 |
CN103134016B (zh) * | 2011-11-24 | 2016-09-14 | 海洋王照明科技股份有限公司 | 伸缩杆及具有该伸缩杆的灯具 |
CN105276247A (zh) * | 2014-06-21 | 2016-01-27 | 费斯托股份有限两合公司 | 止回阀和装备有该止回阀的真空工作设备 |
CN105276247B (zh) * | 2014-06-21 | 2018-11-09 | 费斯托股份有限两合公司 | 止回阀和装备有该止回阀的真空工作设备 |
Also Published As
Publication number | Publication date |
---|---|
EP1680576B1 (en) | 2010-01-06 |
EP1680576A4 (en) | 2007-11-21 |
US7364413B2 (en) | 2008-04-29 |
KR20060061379A (ko) | 2006-06-07 |
ES2335412T3 (es) | 2010-03-26 |
TW200517586A (en) | 2005-06-01 |
TWI272346B (en) | 2007-02-01 |
JP2007516378A (ja) | 2007-06-21 |
WO2005035948A3 (en) | 2006-07-06 |
US20050079081A1 (en) | 2005-04-14 |
DK1680576T3 (da) | 2010-02-15 |
CN100460674C (zh) | 2009-02-11 |
ATE454534T1 (de) | 2010-01-15 |
DE602004025023D1 (de) | 2010-02-25 |
WO2005035948A2 (en) | 2005-04-21 |
EP1680576A2 (en) | 2006-07-19 |
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