FR2374963A2 - Detector for rotational speed of electrostatic spray head - has turbine shaft with slotted head rotating opposite air jet to produce signals - Google Patents

Detector for rotational speed of electrostatic spray head - has turbine shaft with slotted head rotating opposite air jet to produce signals

Info

Publication number
FR2374963A2
FR2374963A2 FR7638606A FR7638606A FR2374963A2 FR 2374963 A2 FR2374963 A2 FR 2374963A2 FR 7638606 A FR7638606 A FR 7638606A FR 7638606 A FR7638606 A FR 7638606A FR 2374963 A2 FR2374963 A2 FR 2374963A2
Authority
FR
France
Prior art keywords
rotational speed
air jet
electrostatic spray
produce signals
detector
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
FR7638606A
Other languages
French (fr)
Other versions
FR2374963B2 (en
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.)
RANSBURG SA
Original Assignee
RANSBURG SA
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 RANSBURG SA filed Critical RANSBURG SA
Priority to FR7638606A priority Critical patent/FR2374963A2/en
Publication of FR2374963A2 publication Critical patent/FR2374963A2/en
Application granted granted Critical
Publication of FR2374963B2 publication Critical patent/FR2374963B2/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/26—Devices characterised by the use of fluids
    • G01P3/263—Devices characterised by the use of fluids by using fluidic impulse generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0415—Driving means; Parts thereof, e.g. turbine, shaft, bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0422—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces comprising means for controlling speed of rotation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Abstract

The rotational speed of the electrostatic spray head is measured by a turbine fan mounted on a shaft. An extension to this shaft has a head in the form of a flat disc. This has a slot (35) in its periphery, angled into the direction of rotation and located opposite the orifice of an air jet (36). This jet impinges onto the periphery of the disc and its flow pattern is interrupted each time the slot passes in front. The perturbations are used to produce signals (38) which give a measurement of the disc's rotational speed. If necessary, reduction gearing can be introduced.
FR7638606A 1976-12-21 1976-12-21 Detector for rotational speed of electrostatic spray head - has turbine shaft with slotted head rotating opposite air jet to produce signals Granted FR2374963A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7638606A FR2374963A2 (en) 1976-12-21 1976-12-21 Detector for rotational speed of electrostatic spray head - has turbine shaft with slotted head rotating opposite air jet to produce signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7638606A FR2374963A2 (en) 1976-12-21 1976-12-21 Detector for rotational speed of electrostatic spray head - has turbine shaft with slotted head rotating opposite air jet to produce signals

Publications (2)

Publication Number Publication Date
FR2374963A2 true FR2374963A2 (en) 1978-07-21
FR2374963B2 FR2374963B2 (en) 1982-08-06

Family

ID=9181357

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7638606A Granted FR2374963A2 (en) 1976-12-21 1976-12-21 Detector for rotational speed of electrostatic spray head - has turbine shaft with slotted head rotating opposite air jet to produce signals

Country Status (1)

Country Link
FR (1) FR2374963A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361288A (en) * 1980-04-04 1982-11-30 Toyota Jidosha Kogyo Kabushiki Kaisha Rotating speed detecting device of a rotary type electrostatic spray painting device
WO2011035887A1 (en) * 2009-09-24 2011-03-31 Dürr Systems GmbH Rotary atomizer and method for the control of the spraying body of said rotary atomizer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281076A (en) * 1964-06-11 1966-10-25 Ford Motor Co Method and apparatus for atomizing liquids
FR1574988A (en) * 1968-07-02 1969-07-18
DE7039836U (en) * 1970-10-28 1971-03-04 Harenberg H PNEUMATIC TACHOMETER
US3754471A (en) * 1972-02-23 1973-08-28 Avco Corp Pneumatic shaft speed sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281076A (en) * 1964-06-11 1966-10-25 Ford Motor Co Method and apparatus for atomizing liquids
FR1574988A (en) * 1968-07-02 1969-07-18
DE7039836U (en) * 1970-10-28 1971-03-04 Harenberg H PNEUMATIC TACHOMETER
US3754471A (en) * 1972-02-23 1973-08-28 Avco Corp Pneumatic shaft speed sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361288A (en) * 1980-04-04 1982-11-30 Toyota Jidosha Kogyo Kabushiki Kaisha Rotating speed detecting device of a rotary type electrostatic spray painting device
WO2011035887A1 (en) * 2009-09-24 2011-03-31 Dürr Systems GmbH Rotary atomizer and method for the control of the spraying body of said rotary atomizer
US9180469B2 (en) 2009-09-24 2015-11-10 Durr Systems Gmbh Rotary atomizer and method for the control of the spraying body of said rotary atomizer

Also Published As

Publication number Publication date
FR2374963B2 (en) 1982-08-06

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