TW201209282A - Internal bellows pump fluid path - Google Patents

Internal bellows pump fluid path Download PDF

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Publication number
TW201209282A
TW201209282A TW100114894A TW100114894A TW201209282A TW 201209282 A TW201209282 A TW 201209282A TW 100114894 A TW100114894 A TW 100114894A TW 100114894 A TW100114894 A TW 100114894A TW 201209282 A TW201209282 A TW 201209282A
Authority
TW
Taiwan
Prior art keywords
inlet
piston
pump
outlet
check valve
Prior art date
Application number
TW100114894A
Other languages
English (en)
Other versions
TWI547642B (zh
Inventor
Timothy Sean Roman
Kurt R Sjodin
Adam L Kalthoff
Original Assignee
Graco Minnesota Inc
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 Graco Minnesota Inc filed Critical Graco Minnesota Inc
Publication of TW201209282A publication Critical patent/TW201209282A/zh
Application granted granted Critical
Publication of TWI547642B publication Critical patent/TWI547642B/zh

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Classifications

    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/084—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular member being deformed by stretching or distortion
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F04B53/125—Reciprocating 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
    • 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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • 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
    • 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
    • F04B39/123—Fluid connections
    • 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
    • F04B53/10—Valves; Arrangement of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

201209282 六、發明說明： 【發明所屬之技術領域】 本發明是關於一種往復式活塞幫浦。 本申請案主張2011年4月30日提出的美國專利申請 案序號第6 1 /329,663號之利益，其內容藉此參照併入本 文中。 【先前技術】 於典型之往復式活塞幫浦中，有一分開該高壓工作流 體與環繞該幫浦之大氣的密封件》甚至在完美之條件中， 這些密封件每一循環能滲透小量流體，且這對密封件壽命 可爲有害的。該流體能凝固或結晶，且被拉回進入該密封 件，縮短該密封件壽命。歷史上處理此小量滲漏之方法已 使用撓性伸縮囊密封件12，其建立一無暴露之滑動密封 件的幫浦10。於此等設計中，該幫浦10之入口 14係給 定路線通過高壓密封件，且結果之低壓入口腔16被伸縮 囊12所密封，並建立一氣密的密封件，見圖1。該流體 必需接著被給定路線至將在活塞之下吸納的幫浦10之底 部、通過該入口止回閥球。這在歷史上已藉由在該幫浦上 安裝外部歧管所完成，以給定該流體至環繞著該主要泵吸 腔的路線，並饋入該幫浦之入口。 【發明內容】 本發明藉由建立一經過該幫浦之活塞桿及活塞的路徑 來否定外部歧管之需求，見圖2。先前之設計已倂入中空 201209282 之活塞桿，但仍需要用於該出口止回閥之分開的歧管或流 動路徑。本發明將兩止回閥倂入該活塞。這是藉由將三條 入口及出口流動路徑交替分開成60度所完成，見圖3。 其爲倂入該活塞中之入口及出口止回閥兩者的獨特流動路 徑，而爲本發明之主要特徵。 本發明之這些及其他目的及優點將由以下之敘述協同 所附圖式更充分地顯現，其中類似參考字母意指遍及該等 數個視圖之相同或類似的零件。 【實施方式】 本發明之幫浦20被顯示在圖2及3中。幫浦20具有 導通至入口腔24之幫浦入口 22。腔24係藉由伸縮囊密 封件26從外側密封。入口通孔28係設在中空活塞桿30 中’並導通至活塞34中之入口止回閥32，該活塞在作爲 該外殼38的一部份之圓柱體36中滑動。幫浦出口 40係 位在外殼38中。出口止回閥42係亦在活塞34中。 本發明藉由建立一經過該幫浦20之活塞桿30及活塞 34的路徑來否定外部歧管之需求，如圖2所示。本發明 將止回閥32及42兩者倂入該活塞34。這是藉由將三條 入口 44及出口 46流動路徑60交替分開成60度所完成， 如圖3所示。 活塞34具有第一或上端48及第二或底端50，而在 該上端48及底端50中分別設置有入口 52及出口 54孔。 入口止回閥32係位在孔52’而出口止回閥42係位在孔 -6- 201209282 54。如可於圖3中看出，孔52及54之每一者分岔成三條 (在該較佳具體實施例中）流動路徑（入口 44及出口 46 )’該等流動路徑爲交替及纏繞的。其爲倂入該活塞中之 入口及出口止回閥兩者的獨特流動路徑，而爲本發明之主 要特徵。 其係考慮可對該伸縮囊幫浦流體路徑作成各種變化及 修改，而未由本發明之如藉由以下申請專利範圍所界定的 精神及範疇脫離。 【圖式簡單說明】 圖1顯示先前技藝之伸縮囊幫浦。 圖2顯示本發明之幫浦的截面圖。 圖3顯示該活塞及其流動路徑。 【主要元件符號說明】 1〇 :幫浦 1 2 :密封件 14 :入口 16 :腔 20 :幫浦 22 :幫浦入口 24 :入口腔 26 :伸縮囊密封件 28 :入口通孔 201209282 3 0 :活塞桿 32 :入口止回閥 34 :活塞 3 6 :圓柱體 38 :外殼 40 :幫浦出口 42 :出口止回閥 44 :入口 46 :出口 48 :上端 5 0 :底端 52 :入口 54 :出口 -8 ⑧

Claims (1)

  1. 201209282 七、申請專利範圍： 1. 一種往復式活塞幫浦，具有活塞、活塞桿、及入口 與出口止回閥，其改良在於： 該活塞具有第一及第二端部，該等止回閥之一者位在 該第一端部，且該等止回閥之另一者位在該第二端部； 複數入口通道，其連接該一止回閥與該第二端部；及 複數出口通道，其連接該另一止回閥與該第一端部。 2. 如申請專利範圍第1項之往復式活塞幫浦，其中該 等入口通道及該等出口通道徑向地交替。 -9-
TW100114894A 2010-04-30 2011-04-28 內伸縮囊幫浦流體路徑 TWI547642B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32966310P 2010-04-30 2010-04-30

Publications (2)

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TW201209282A true TW201209282A (en) 2012-03-01
TWI547642B TWI547642B (zh) 2016-09-01

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Application Number Title Priority Date Filing Date
TW100114894A TWI547642B (zh) 2010-04-30 2011-04-28 內伸縮囊幫浦流體路徑

Country Status (10)

Country Link
US (1) US9394900B2 (zh)
EP (1) EP2564066B1 (zh)
JP (1) JP5827317B2 (zh)
KR (1) KR101821436B1 (zh)
CN (1) CN102844568B (zh)
AU (1) AU2011245403B2 (zh)
BR (1) BR112012027163A2 (zh)
TR (1) TR201903668T4 (zh)
TW (1) TWI547642B (zh)
WO (1) WO2011137145A1 (zh)

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US9926922B2 (en) * 2015-01-30 2018-03-27 Caterpillar Inc. Barrel assembly for a fluid pump having separate plunger bore and outlet passage
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Also Published As

Publication number Publication date
EP2564066B1 (en) 2019-03-06
AU2011245403A1 (en) 2012-09-13
TWI547642B (zh) 2016-09-01
KR101821436B1 (ko) 2018-01-23
WO2011137145A1 (en) 2011-11-03
EP2564066A1 (en) 2013-03-06
CN102844568B (zh) 2015-12-16
AU2011245403B2 (en) 2015-02-05
JP5827317B2 (ja) 2015-12-02
JP2013527371A (ja) 2013-06-27
CN102844568A (zh) 2012-12-26
US20130045123A1 (en) 2013-02-21
KR20130077824A (ko) 2013-07-09
BR112012027163A2 (pt) 2017-07-11
US9394900B2 (en) 2016-07-19
TR201903668T4 (tr) 2019-04-22

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