WO2000001947A3 - Pump mechanism - Google Patents

Pump mechanism Download PDF

Info

Publication number
WO2000001947A3
WO2000001947A3 PCT/GB1999/002200 GB9902200W WO0001947A3 WO 2000001947 A3 WO2000001947 A3 WO 2000001947A3 GB 9902200 W GB9902200 W GB 9902200W WO 0001947 A3 WO0001947 A3 WO 0001947A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
conduit
pumping
outlet
discharge conduit
Prior art date
Application number
PCT/GB1999/002200
Other languages
French (fr)
Other versions
WO2000001947A2 (en
Inventor
John David Burton
Original Assignee
Univ Reading
John David Burton
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 Univ Reading, John David Burton filed Critical Univ Reading
Priority to AU49186/99A priority Critical patent/AU4918699A/en
Publication of WO2000001947A2 publication Critical patent/WO2000001947A2/en
Publication of WO2000001947A3 publication Critical patent/WO2000001947A3/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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation

Abstract

A pumping mechanism has a pumping chamber (5) which receives a liquid such as water from a liquid supply (1) and from which the liquid is driven in a driving phase of the pumping cycle by an actuator (4) into a discharge conduit (6, 8) and in the discharge conduit (6, 8) to an outlet. In addition, liquid passes from the liquid supply (1) to a by-pass conduit (7) to the outlet (3) via at least part of the discharge conduit (6, 8) without having passed through the pumping chamber (5). This arrangement absorbs energy during the driving phase, which energy is released to drive liquid via the by-pass conduit (7) to the outlet (3) at another part of the pumping cycle. The discharge conduit (6, 8) and the by-pass conduit (7) act as fluid inductances (L1, L3, L2). A chamber (9) with a resilient wall may be provided to receive liquid during the driving phase and so act as a liquid capacitance.
PCT/GB1999/002200 1998-07-07 1999-07-07 Pump mechanism WO2000001947A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49186/99A AU4918699A (en) 1998-07-07 1999-07-07 Pump mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9814767.1A GB9814767D0 (en) 1998-07-07 1998-07-07 Pump mechanism
GB9814767.1 1998-07-07

Publications (2)

Publication Number Publication Date
WO2000001947A2 WO2000001947A2 (en) 2000-01-13
WO2000001947A3 true WO2000001947A3 (en) 2002-09-19

Family

ID=10835130

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/002200 WO2000001947A2 (en) 1998-07-07 1999-07-07 Pump mechanism

Country Status (3)

Country Link
AU (1) AU4918699A (en)
GB (1) GB9814767D0 (en)
WO (1) WO2000001947A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE293005C (en) *
NL21578C (en) *
US4401082A (en) * 1980-03-27 1983-08-30 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
US5165875A (en) * 1990-07-26 1992-11-24 Bendix Europe Services Techniques Reciprocating hydraulic pump
US5167495A (en) * 1990-07-26 1992-12-01 Bendix Europe Services Techniques Reciprocating hydraulic pump
EP0863306A1 (en) * 1997-03-08 1998-09-09 Lucas Industries Public Limited Company Pressure regulator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE293005C (en) *
NL21578C (en) *
US4401082A (en) * 1980-03-27 1983-08-30 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
US5165875A (en) * 1990-07-26 1992-11-24 Bendix Europe Services Techniques Reciprocating hydraulic pump
US5167495A (en) * 1990-07-26 1992-12-01 Bendix Europe Services Techniques Reciprocating hydraulic pump
EP0863306A1 (en) * 1997-03-08 1998-09-09 Lucas Industries Public Limited Company Pressure regulator

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
KRESCH, E. NOORDERGRAAF, A.: "A mathematical model for the pressure-flow relationship in a segment of a vein", IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, October 1969 (1969-10-01), pages 296 - 307, XP002118238 *
KRUS P: "AN INTRODUCTION TO MODELLING OF TRANSMISSION LINES", XP002118241, Retrieved from the Internet <URL:http://hydra.ikp.liu.se/~petkr/HPllline/node4.html> [retrieved on 19991008] *
TEAL D: "HYDROPOWER FROM SLURRY FLOW", XP002118239, Retrieved from the Internet <URL:http://www.rdg.ac.uk/energy/book/msc98.html#hydroslurry> [retrieved on 19991008] *

Also Published As

Publication number Publication date
WO2000001947A2 (en) 2000-01-13
AU4918699A (en) 2000-01-24
GB9814767D0 (en) 1998-09-09

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