GB2402444A - Hydraulic pump - Google Patents

Hydraulic pump Download PDF

Info

Publication number
GB2402444A
GB2402444A GB0419566A GB0419566A GB2402444A GB 2402444 A GB2402444 A GB 2402444A GB 0419566 A GB0419566 A GB 0419566A GB 0419566 A GB0419566 A GB 0419566A GB 2402444 A GB2402444 A GB 2402444A
Authority
GB
United Kingdom
Prior art keywords
pump
flow
control means
pressure
sensor
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB0419566A
Other versions
GB2402444B (en
GB0419566D0 (en
Inventor
Alan Rodney Henderson
Paul Wakefield
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salamander Pumped Shower Systems Ltd
Original Assignee
Salamander Pumped Shower Systems Ltd
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 Salamander Pumped Shower Systems Ltd filed Critical Salamander Pumped Shower Systems Ltd
Publication of GB0419566D0 publication Critical patent/GB0419566D0/en
Publication of GB2402444A publication Critical patent/GB2402444A/en
Application granted granted Critical
Publication of GB2402444B publication Critical patent/GB2402444B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • 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
    • F04B49/005—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 changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member
    • 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
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

A hydraulic pump comprises one or more outlets, one or more pressure sensors and/or one or more flow sensors linked to or incorporated in a pump's control means which is adapted to compare the or each measurement obtained from the or each pressure sensor and/or the or each flow sensor with one or more pre-set pressure or flow values stored in the memory of said control means, wherein said control means is adapted to switch off the pump once or repeatedly for a period if the or each measurement from the or each pressure sensor and/or flow sensor is outside a range of pre-set pressure or flow values, such period being sufficient for air to escape from the pump through the or each outlet or the or each pump chamber to be flooded.

Description

GB 2402444 A continuation (74) Agent and/or Address for Service: i.p.21
Limited Norwich Research Park, Colney, NORWICH, NR4 TUT, United Kingdom
GB0419566A 2002-03-15 2003-03-11 Hydraulic pump Expired - Lifetime GB2402444B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0206110.9A GB0206110D0 (en) 2002-03-15 2002-03-15 Hydraulic pump
PCT/GB2003/001039 WO2003078839A2 (en) 2002-03-15 2003-03-11 Hydraulic pump

Publications (3)

Publication Number Publication Date
GB0419566D0 GB0419566D0 (en) 2004-10-06
GB2402444A true GB2402444A (en) 2004-12-08
GB2402444B GB2402444B (en) 2006-02-15

Family

ID=9933022

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0206110.9A Ceased GB0206110D0 (en) 2002-03-15 2002-03-15 Hydraulic pump
GB0419566A Expired - Lifetime GB2402444B (en) 2002-03-15 2003-03-11 Hydraulic pump

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0206110.9A Ceased GB0206110D0 (en) 2002-03-15 2002-03-15 Hydraulic pump

Country Status (3)

Country Link
AU (1) AU2003209499A1 (en)
GB (2) GB0206110D0 (en)
WO (1) WO2003078839A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010202A1 (en) * 2004-07-28 2006-02-02 Ian Gray Pump control system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2008873A (en) * 1977-11-23 1979-06-06 Klein Schanzlin & Becker Ag Protection means for a device driven by an electric motor
WO1995002126A1 (en) * 1993-07-08 1995-01-19 Fisherman Holdings Limited T/A M2Technology Pump controller
JPH07167102A (en) * 1993-12-17 1995-07-04 Sumitomo Metal Ind Ltd Pressure control method in high pressure pump
FR2722251A1 (en) * 1994-07-05 1996-01-12 Transenergie Solar powered water pumping station for use in remote locations such as semi-arid zones
DE19539395A1 (en) * 1995-10-10 1997-04-17 Hako Gmbh & Co Electrically driven liquid pump e.g. for wet cleaning machine
EP0819851A2 (en) * 1996-07-19 1998-01-21 GARDENA Kress + Kastner GmbH Control device for a supplying pomp or the like
US6055851A (en) * 1996-08-12 2000-05-02 Hitachi Construction Machinery Co., Ltd. Apparatus for diagnosing failure of hydraulic pump for work machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR806801A0 (en) * 2001-10-03 2001-10-25 Davey Products Pty Ltd Pump control system
US20030077179A1 (en) * 2001-10-19 2003-04-24 Michael Collins Compressor protection module and system and method incorporating same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2008873A (en) * 1977-11-23 1979-06-06 Klein Schanzlin & Becker Ag Protection means for a device driven by an electric motor
WO1995002126A1 (en) * 1993-07-08 1995-01-19 Fisherman Holdings Limited T/A M2Technology Pump controller
JPH07167102A (en) * 1993-12-17 1995-07-04 Sumitomo Metal Ind Ltd Pressure control method in high pressure pump
FR2722251A1 (en) * 1994-07-05 1996-01-12 Transenergie Solar powered water pumping station for use in remote locations such as semi-arid zones
DE19539395A1 (en) * 1995-10-10 1997-04-17 Hako Gmbh & Co Electrically driven liquid pump e.g. for wet cleaning machine
EP0819851A2 (en) * 1996-07-19 1998-01-21 GARDENA Kress + Kastner GmbH Control device for a supplying pomp or the like
US6055851A (en) * 1996-08-12 2000-05-02 Hitachi Construction Machinery Co., Ltd. Apparatus for diagnosing failure of hydraulic pump for work machine

Also Published As

Publication number Publication date
WO2003078839A3 (en) 2003-11-27
GB0206110D0 (en) 2002-04-24
WO2003078839A2 (en) 2003-09-25
GB2402444B (en) 2006-02-15
AU2003209499A1 (en) 2003-09-29
GB0419566D0 (en) 2004-10-06

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20230310