CA2232040A1 - Independent flow rate and droplet size control system and method for sprayer - Google Patents

Independent flow rate and droplet size control system and method for sprayer

Info

Publication number
CA2232040A1
CA2232040A1 CA002232040A CA2232040A CA2232040A1 CA 2232040 A1 CA2232040 A1 CA 2232040A1 CA 002232040 A CA002232040 A CA 002232040A CA 2232040 A CA2232040 A CA 2232040A CA 2232040 A1 CA2232040 A1 CA 2232040A1
Authority
CA
Canada
Prior art keywords
control system
spray
flow rate
droplet size
sprayer
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
CA002232040A
Other languages
French (fr)
Other versions
CA2232040C (en
Inventor
Graeme W. Henderson
Durham K. Giles
Kent D. Funk
Troy C. Kolb
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.)
CAPSTAN Inc
Original Assignee
Capstan, Inc.
Graeme W. Henderson
Durham K. Giles
Kent D. Funk
Troy C. Kolb
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 Capstan, Inc., Graeme W. Henderson, Durham K. Giles, Kent D. Funk, Troy C. Kolb filed Critical Capstan, Inc.
Publication of CA2232040A1 publication Critical patent/CA2232040A1/en
Application granted granted Critical
Publication of CA2232040C publication Critical patent/CA2232040C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0089—Regulating or controlling systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus

Abstract

A flow rate and droplet size control system for a spray system (3) including a spray liquid source (8), a pump (19), a spray liquid line (18) and a nozzle assembly (12). The control system includes a setpoint conversion subroutine (66) for independently controlling the flow rate and volume median droplet size setpoints. The control system also includes performance envelopes for various nozzle tips (14).
An independent flow rate and droplet size control method is provided for use with the control system. A position-responsive control system (202) receives information pertaining to the boundaries of spray zones and spray conditions, such as application rates and volume median droplet diameters associated with the spray zones. The position-responsive control system (202) monitors the position of the spray vehicle (6), which can comprise a ground vehicle or an aircraft. The position-based control system changes the spray system operating conditions in response to the sprayer vehicle position. A position-based method of controlling the spray system utilizes the position-based control system.
CA002232040A 1995-09-15 1996-09-12 Independent flow rate and droplet size control system and method for sprayer Expired - Lifetime CA2232040C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/528,941 US5653389A (en) 1995-09-15 1995-09-15 Independent flow rate and droplet size control system and method for sprayer
US08/528,941 1995-09-15
PCT/US1996/014647 WO1997012688A1 (en) 1995-09-15 1996-09-12 Independent flow rate and droplet size control system and method for sprayer

Publications (2)

Publication Number Publication Date
CA2232040A1 true CA2232040A1 (en) 1997-04-10
CA2232040C CA2232040C (en) 2008-01-29

Family

ID=24107856

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002232040A Expired - Lifetime CA2232040C (en) 1995-09-15 1996-09-12 Independent flow rate and droplet size control system and method for sprayer

Country Status (7)

Country Link
US (1) US5653389A (en)
EP (1) EP0847307B1 (en)
AT (1) ATE231416T1 (en)
AU (1) AU702123B2 (en)
CA (1) CA2232040C (en)
DE (1) DE69625914T2 (en)
WO (1) WO1997012688A1 (en)

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DE69625914T2 (en) 2003-11-20
US5653389A (en) 1997-08-05
AU7158496A (en) 1997-04-28
EP0847307A4 (en) 2000-11-22
EP0847307A1 (en) 1998-06-17
DE69625914D1 (en) 2003-02-27
ATE231416T1 (en) 2003-02-15
CA2232040C (en) 2008-01-29
WO1997012688A1 (en) 1997-04-10
EP0847307B1 (en) 2003-01-22
AU702123B2 (en) 1999-02-11

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