CA2600802A1 - Liquid additive injection pump with mixing chamber and one way valve - Google Patents

Liquid additive injection pump with mixing chamber and one way valve Download PDF

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Publication number
CA2600802A1
CA2600802A1 CA002600802A CA2600802A CA2600802A1 CA 2600802 A1 CA2600802 A1 CA 2600802A1 CA 002600802 A CA002600802 A CA 002600802A CA 2600802 A CA2600802 A CA 2600802A CA 2600802 A1 CA2600802 A1 CA 2600802A1
Authority
CA
Canada
Prior art keywords
fluid
mixing chamber
way valve
piston
gasket
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
CA002600802A
Other languages
French (fr)
Other versions
CA2600802C (en
Inventor
Frank A. Walton
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.)
Dosmatic USA Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2600802A1 publication Critical patent/CA2600802A1/en
Application granted granted Critical
Publication of CA2600802C publication Critical patent/CA2600802C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/1235—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber the movement of the pump piston in the two directions being obtained by two single-acting piston fluid motors, each acting in one direction
    • 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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • 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
    • F04B15/04—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being hot or corrosive
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/008—Control of flow ratio involving a fluid operating a pump motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Multiple-Way Valves (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Hydraulic Motors (AREA)

Abstract

A liquid additive injection pump for injecting a predetermined amount of a secondary fluid into a primary fluid stream wherein a fluid mixing chamber is disposed within the pump housing assembly. A gasket having at least one one-way valve is positioned between the pump assembly components and mixing chamber thereby allowing a primary fluid to pass through the pump assembly and into the mixing chamber where the introduction of a second fluid occurs. The mixed fluids are then discharged through an outlet. The one-way valve gasket assembly acts to prevent the mixed and/or secondary fluid from passing upstream of the gasket assembly and into the pump assembly.

Claims (13)

1. An apparatus for introducing a secondary fluid into a primary fluid, comprising:
a fluid powered motor driven by a primary fluid stream;
a liquid additive injection pump driven by the fluid powered motor; and, a lower housing body secured to the housing cover wherein the lower housing body includes an outer cylinder wall and an inner cylinder wall defining a fluid mixing chamber.
2. The apparatus of Claim 1 further comprising:
a gasket with at least one one-way valve positioned between the housing cover and the lower housing body wherein the one-way valve gasket allows the primary fluid stream to pass into the fluid mixing chamber.
3. The apparatus of Claim 2 further comprising;
a piston, movable between upstroke and down stroke positions, enclosed within a piston-assembly space defined by the inner cylinder wall, the gasket, and the housing cover.
4. The apparatus of Claim 1 further comprising:
a valve mechanism establishing a differential pressure within the housing to produce movement of the piston.
5. The apparatus of Claim 2 further comprising:
an over-center mechanism coupled to the valve mechanism to toggle the valve mechanism between open and closed positions.
6. The apparatus of Claim 1 further comprising:
an actuating shaft coupled to the over-center mechanism, the actuating shaft including a piston upstroke stop that causes toggling of the valve mechanism at an upstroke position of the piston during normal reciprocating movement of the piston.
7. The apparatus of Claim 1 further comprising:
a primary fluid inlet feeding directly into the piston-assembly space; and, a fluid discharge outlet in fluid communication with the mixing chamber.
8. The apparatus of Claim 2 wherein said one-way valve gasket further comprises at least one nipple-type one-way valve.
9. The apparatus of Claim 2 wherein said one-way valve gasket comprises one of rubber, VITON, or polyurethane.
10. A method for introducing a secondary fluid into a primary fluid stream, comprising:
introducing a primary fluid into a fluid pump assembly;
pumping the primary fluid into a fluid mixing chamber via at least one one way valve; and, injecting a secondary fluid into the fluid mixing chamber.
11. The method of Claim 10 wherein said one-way valve moves to the closed position when the flow of fluid from the pump assembly to the mixing chamber reverses direction.
12. The method of Claim 10 wherein the one-way-valve moves to the closed position when the fluid pressure in the mixing chamber exceeds the fluid pressure in the pump assembly.
13
CA2600802A 2005-03-09 2006-03-03 Liquid additive injection pump with mixing chamber and one way valve Expired - Fee Related CA2600802C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/076,129 US7438537B2 (en) 2005-03-09 2005-03-09 Liquid additive injection pump with mixing chamber and one way valve
US11/076,129 2005-03-09
PCT/US2006/007842 WO2006098920A2 (en) 2005-03-09 2006-03-03 Liquid additive injection pump with mixing chamber and one way valve

Publications (2)

Publication Number Publication Date
CA2600802A1 true CA2600802A1 (en) 2006-09-21
CA2600802C CA2600802C (en) 2010-07-20

Family

ID=36971133

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2600802A Expired - Fee Related CA2600802C (en) 2005-03-09 2006-03-03 Liquid additive injection pump with mixing chamber and one way valve

Country Status (5)

Country Link
US (1) US7438537B2 (en)
EP (1) EP1869321B1 (en)
JP (1) JP2008533360A (en)
CA (1) CA2600802C (en)
WO (1) WO2006098920A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL196598A0 (en) * 2009-01-19 2009-09-22 Anton Babushkin Dosing pump
MX339610B (en) 2010-01-06 2016-05-31 Puricore Inc Method of injecting solution into a misting line.
US9057484B2 (en) * 2010-08-11 2015-06-16 Huguenot Laboratories Bypass feeder device
US9079142B2 (en) 2013-03-11 2015-07-14 Oms Investments, Inc. Hydraulic mixing device for sprayer system
CN103291583B (en) * 2013-05-08 2016-05-18 杭州新连气体设备有限公司 A kind of LNG liquid feeding equipment
NL1042015B1 (en) 2016-08-23 2018-03-06 Robertus Martinus Van Opdorp Configuration of components that can be inserted into an existing liquid pipe network for the purpose of dosed addition of additives to a liquid pipe network.
EP4161281A1 (en) 2020-06-07 2023-04-12 Comestaag LLC Barrier coating compositions for perishables and methods, kits and coated items relating thereto
IL277286B (en) * 2020-09-10 2022-09-01 Tefen Flow & Dosing Tech A dosing pump
US11946564B2 (en) 2022-08-10 2024-04-02 Thomas D. Mueller Rotary valve for use with a fluid proportioner

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772817A (en) * 1952-03-01 1956-12-04 Robert J Jauch Dispensing pumps
US4084606A (en) * 1974-04-23 1978-04-18 Baxter Travenol Laboratories, Inc. Fluid transfer device
US3963038A (en) 1974-08-15 1976-06-15 Jensen Raymond W Liquid proportioning pump
US4030495A (en) * 1975-11-07 1977-06-21 Baxter Travenol Laboratories, Inc. Twin check valve pump system having fail-safe characteristic
US4199083A (en) 1976-12-02 1980-04-22 Ethyl Corporation Trigger actuated pump
US4558715A (en) 1984-05-16 1985-12-17 Kowatachi International, Ltd. Apparatus for injecting measured quantities of liquid into a fluid stream
US4809731A (en) 1985-01-17 1989-03-07 Frank A. Walton Liquid injection apparatus having an external adjustor
US4729401A (en) * 1987-01-29 1988-03-08 Burron Medical Inc. Aspiration assembly having dual co-axial check valves
US5137435A (en) 1991-03-25 1992-08-11 Frank And Robyn Walton 1990 Family Trust Compression spring fluid motor
US5484270A (en) * 1994-02-28 1996-01-16 Carmeli Adahan Pump particularly useful in respirator apparatus and exhalation valve assembly therefor
US5513963A (en) 1994-08-16 1996-05-07 Frank And Robyn Walton 1990 Family Trust Direct action fluid motor and injection pump
US6453940B1 (en) * 1999-12-20 2002-09-24 Federal-Mogul Corporation Insert bonded combination valve

Also Published As

Publication number Publication date
WO2006098920A3 (en) 2007-12-13
CA2600802C (en) 2010-07-20
US20060204376A1 (en) 2006-09-14
EP1869321B1 (en) 2018-04-25
WO2006098920A2 (en) 2006-09-21
JP2008533360A (en) 2008-08-21
EP1869321A4 (en) 2012-08-22
EP1869321A2 (en) 2007-12-26
US7438537B2 (en) 2008-10-21

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EEER Examination request
MKLA Lapsed

Effective date: 20220303