HK1069198A1 - Liquid pump and method for pumping a liquid that may have gas coming out of solution - Google Patents

Liquid pump and method for pumping a liquid that may have gas coming out of solution

Info

Publication number
HK1069198A1
HK1069198A1 HK05102414A HK05102414A HK1069198A1 HK 1069198 A1 HK1069198 A1 HK 1069198A1 HK 05102414 A HK05102414 A HK 05102414A HK 05102414 A HK05102414 A HK 05102414A HK 1069198 A1 HK1069198 A1 HK 1069198A1
Authority
HK
Hong Kong
Prior art keywords
vapor
liquid
inlet
supply tank
pump
Prior art date
Application number
HK05102414A
Inventor
Leslie James Warren
Original Assignee
Diversified Dynamics Corp
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 Diversified Dynamics Corp filed Critical Diversified Dynamics Corp
Publication of HK1069198A1 publication Critical patent/HK1069198A1/en

Links

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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • 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
    • F04B53/06—Venting

Abstract

The present invention increases the pumping efficiency when pumping liquids whose liquid source is at a temperature and pressure close to the liquidus, or having entrained gas or gas coming out of solution, referred to as vapor, in several ways. First, the pump is oriented to allow liquid flowing into the compression chamber by the natural tendency of liquid to flow downward and residual vapor to return to the supply tank, by the natural tendency of vapor to flow upward. The location of the large smooth inlet line at the top of the pump encourages any vapor to escape and be piped back to the supply tank. The flow of vapor back to the supply tank is also encouraged by the vapor outlets and conduit leading back, at a positive slope, to the supply tank. Second, the inlet chamber located above the inlet valve reduces cavitation because this chamber prepares a new discrete volume of inlet liquid while the current discrete volume is being power-stroked out of the compression chamber. This is furthered by setting the inlet valves in angled pockets which encourages and facilitates the release any released vapor bubbles back to the top of the inlet line during the power stroke. Finally, the current invention discourages cavitation because the unswept volume is minimized. This is critical to the efficiency of the pump as well as reduction of the adverse effects of cavitation because this residual liquid tends to vaporize when subjected to depressurization during the intake stroke.
HK05102414A 2003-07-04 2005-04-21 Liquid pump and method for pumping a liquid that may have gas coming out of solution HK1069198A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2003/007190 WO2005005830A1 (en) 2003-07-04 2003-07-04 Liquid pump and method for pumping a liquid that may have gas coming out of solution

Publications (1)

Publication Number Publication Date
HK1069198A1 true HK1069198A1 (en) 2005-05-13

Family

ID=34042659

Family Applications (1)

Application Number Title Priority Date Filing Date
HK05102414A HK1069198A1 (en) 2003-07-04 2005-04-21 Liquid pump and method for pumping a liquid that may have gas coming out of solution

Country Status (12)

Country Link
US (1) US20060216177A1 (en)
EP (1) EP1493922B1 (en)
AT (1) ATE316612T1 (en)
AU (1) AU2003246384A1 (en)
DE (1) DE602004000344T2 (en)
DK (1) DK1493922T3 (en)
ES (1) ES2257719T3 (en)
HK (1) HK1069198A1 (en)
PL (1) PL1493922T3 (en)
PT (1) PT1493922E (en)
SI (1) SI1493922T1 (en)
WO (1) WO2005005830A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7278443B2 (en) 2004-12-16 2007-10-09 Diversified Dynamics Corporation Pulsation causing valve for a plural piston pump
US7290561B2 (en) 2004-12-16 2007-11-06 Diversified Dynamics Corporation Pulsation causing valve for a plural piston pump
US7857605B2 (en) 2006-06-29 2010-12-28 Caterpillar Inc Inlet throttle controlled liquid pump with cavitation damage avoidance feature
RU2565943C1 (en) * 2014-08-05 2015-10-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Омский государственный технический университет" Machine of positive displacement action
JP6686269B2 (en) * 2014-10-13 2020-04-22 アルファ エッセ．エッレ．エッレ． Liquid positive displacement pumps, liquid pumps, and their usage
CA3007302C (en) * 2015-12-10 2022-04-12 A.H.M.S., Inc. Fluid end assembly of a reciprocating pump

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Also Published As

Publication number Publication date
ATE316612T1 (en) 2006-02-15
DE602004000344T2 (en) 2006-11-16
EP1493922B1 (en) 2006-01-25
DE602004000344D1 (en) 2006-04-13
DK1493922T3 (en) 2006-05-29
US20060216177A1 (en) 2006-09-28
EP1493922A1 (en) 2005-01-05
PT1493922E (en) 2006-06-30
PL1493922T3 (en) 2006-06-30
SI1493922T1 (en) 2006-06-30
WO2005005830A1 (en) 2005-01-20
AU2003246384A1 (en) 2005-01-28
ES2257719T3 (en) 2006-08-01

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20100702