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 signalsInfo
- 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
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.
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)
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)
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 |
-
1976
- 1976-12-21 FR FR7638606A patent/FR2374963A2/en active Granted
Patent Citations (4)
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)
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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