AU4882590A - High volume low pressure air spray gun - Google Patents
High volume low pressure air spray gunInfo
- Publication number
- AU4882590A AU4882590A AU48825/90A AU4882590A AU4882590A AU 4882590 A AU4882590 A AU 4882590A AU 48825/90 A AU48825/90 A AU 48825/90A AU 4882590 A AU4882590 A AU 4882590A AU 4882590 A AU4882590 A AU 4882590A
- Authority
- AU
- Australia
- Prior art keywords
- air
- venturi
- side port
- gun
- orifices
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0081—Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
- B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
- B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
- B05B7/0838—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter comprising a single means controlling simultaneously the flow rates of shaping and spraying gas jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
- B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
- B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus
- B05B7/241—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus the container being pressurised
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Nozzles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A high volume low pressure air spray gun (20) has an atomizing air orifice (76) for atomizing a stream of liquid coating material into a conical spray and opposed side port air orifices (88) for flattening the spray into a fan-shaped pattern. The gun receives air at pressures up to about 100 psi, and an air flow restriction in the form of a venturi (110) is in an air supply passage in the gun barrel. A valve stem (54) for controlling the flow rate of air to the side port orifices (88) extends through the venturi (110), and is configured to vary the venturi air flow area in response to changes in the flow rate of air to the side port orifices. When the valve stem (54) is positioned for maximum air flow to the side port orifices (88), it establishes a maximum air flow area through the venturi (110) , such that a high pressure of air at the gun air inlet, after flowing through the venturi, results in a high volume low pressure air flow at the atomizing and side port orifices (88). When the valve stem (54) is positioned to reduce air flow to the side port orifices (88), it correspondingly reduces the flow area through the venturi (110) to maintain the pressure of air at the atomizing orifice below a selected maximum value. The gun may carry a paint cup (124), in which case the cup is pressurized by air downstream from the venturi to prevent overpressurization of the cup.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30651789A | 1989-02-03 | 1989-02-03 | |
US306517 | 1989-02-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU4882590A true AU4882590A (en) | 1990-08-16 |
AU618166B2 AU618166B2 (en) | 1991-12-12 |
Family
ID=23185657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU48825/90A Ceased AU618166B2 (en) | 1989-02-03 | 1990-01-25 | High volume low pressure air spray gun |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0381072B1 (en) |
JP (1) | JPH0741181B2 (en) |
AT (1) | ATE106282T1 (en) |
AU (1) | AU618166B2 (en) |
CA (1) | CA2007963A1 (en) |
DE (1) | DE69009201T2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2061840A1 (en) * | 1991-03-11 | 1992-09-12 | D. William Medlock | Pressure compensated hvlp spray gun |
US5209405A (en) * | 1991-04-19 | 1993-05-11 | Ransburg Corporation | Baffle for hvlp paint spray gun |
GB9200605D0 (en) * | 1992-01-13 | 1992-03-11 | Itw Ltd | Air valve |
EP0621806A1 (en) * | 1992-01-13 | 1994-11-02 | Itw Limited | A feedback air pressure sensing system |
US5671888A (en) * | 1994-07-06 | 1997-09-30 | Smith; Paul | Spray gun with barrel-mounted venturi |
ES2115840T3 (en) * | 1994-10-13 | 1998-07-01 | Sata Farbspritztechnik | COMPRESSED AIR ACTUATED SPRAY GUN. |
ES2149057B1 (en) * | 1996-10-31 | 2001-05-01 | Sagola Sa | NEW LOW PRESSURE AIR GUN. |
ES2151778B1 (en) * | 1997-04-04 | 2001-07-01 | Sagola Sa | PERFECTED AIR LOW PRESSURE GUN. |
JP2016131907A (en) * | 2015-01-16 | 2016-07-25 | アネスト岩田株式会社 | Spray gun |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB482020A (en) * | 1937-03-23 | 1938-03-22 | Alexander Frederick Jenkins | Improvements in spraying devices |
US2864649A (en) * | 1956-11-26 | 1958-12-16 | Cline Electric Mfg Co | Spray gun |
AU504469B2 (en) * | 1976-08-27 | 1979-10-18 | Tricentrol Manufacturing Pty. Limited | Spraygun |
JPS634520Y2 (en) * | 1981-06-10 | 1988-02-05 | ||
JPH039807Y2 (en) * | 1985-01-10 | 1991-03-12 | ||
JPS6247418A (en) * | 1985-08-28 | 1987-03-02 | Nippon Kokan Kk <Nkk> | Method for estimating oxygen concentration in molten steel |
JPS638435U (en) * | 1986-06-25 | 1988-01-20 | ||
US4744518A (en) * | 1986-11-12 | 1988-05-17 | Can-Am Engineered Products, Inc. | Fan adjustment for paint spray gun |
US4817872A (en) * | 1987-05-22 | 1989-04-04 | Mattson Roy D | Adjustable fluid spray gun |
GB8802130D0 (en) * | 1988-02-01 | 1988-03-02 | Devilbiss Co | Spraygun |
DE8911932U1 (en) * | 1989-10-06 | 1990-01-18 | Bersch & Fratscher GmbH, 8757 Karlstein | Paint spray gun |
-
1990
- 1990-01-17 CA CA002007963A patent/CA2007963A1/en not_active Abandoned
- 1990-01-25 AU AU48825/90A patent/AU618166B2/en not_active Ceased
- 1990-01-26 DE DE69009201T patent/DE69009201T2/en not_active Expired - Fee Related
- 1990-01-26 AT AT90101583T patent/ATE106282T1/en active
- 1990-01-26 EP EP90101583A patent/EP0381072B1/en not_active Expired - Lifetime
- 1990-02-02 JP JP2024288A patent/JPH0741181B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0381072B1 (en) | 1994-06-01 |
JPH0741181B2 (en) | 1995-05-10 |
CA2007963A1 (en) | 1990-08-03 |
EP0381072A3 (en) | 1991-07-31 |
EP0381072A2 (en) | 1990-08-08 |
ATE106282T1 (en) | 1994-06-15 |
DE69009201T2 (en) | 1994-09-08 |
JPH03178355A (en) | 1991-08-02 |
AU618166B2 (en) | 1991-12-12 |
DE69009201D1 (en) | 1994-07-07 |
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