EP0561726A1 - Pumpe zur Aufbringung eines Produktes unter Druck und Einrichtung mit einer solchen Pumpe - Google Patents

Pumpe zur Aufbringung eines Produktes unter Druck und Einrichtung mit einer solchen Pumpe Download PDF

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Publication number
EP0561726A1
EP0561726A1 EP93490004A EP93490004A EP0561726A1 EP 0561726 A1 EP0561726 A1 EP 0561726A1 EP 93490004 A EP93490004 A EP 93490004A EP 93490004 A EP93490004 A EP 93490004A EP 0561726 A1 EP0561726 A1 EP 0561726A1
Authority
EP
European Patent Office
Prior art keywords
product
circuit
pump
chamber
outlet
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.)
Withdrawn
Application number
EP93490004A
Other languages
English (en)
French (fr)
Inventor
Arnold Thomas Delaney
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.)
PROSIGN SA
Original Assignee
PROSIGN 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 PROSIGN SA filed Critical PROSIGN SA
Publication of EP0561726A1 publication Critical patent/EP0561726A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B05B9/0413—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 with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
    • 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
    • B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material to be sprayed
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F04B53/125—Reciprocating valves
    • F04B53/126—Ball valves

Definitions

  • the invention relates to a pump for the application under pressure of a product which needs to be sprayed hot.
  • bitumen and so-called hot-melt paints such as those used for road markings which must generally be previously heated to a temperature of the order of one hundred and forty degrees Celsius.
  • the reservoir is pressurized which allows the product to be driven to the applicator device.
  • the pressure prevailing in the tank is generally low at most of the order of six bars and therefore the product is not really sprayed but practically flows.
  • the quantities of product deposited per square meter are then very large and, for example, of the order of four to five kilograms and the thickness of the applied layer is at least of the order of two to three millimeters.
  • the thickness of the sprayed layer is then easily controllable and can therefore be reduced to the dose just necessary if necessary.
  • the means for controlling the passage of the product are each in particular constituted by a valve cooperating with a seat disposed at the periphery of an orifice, each of these parts being themselves said to be inlet or outlet depending on whether it belongs to the means of passage known as entry or exit.
  • the inlet valve When the piston moves in the other direction, the inlet valve is applied to its seat while the outlet valve is moved away from its seat and makes it possible to evacuate the product from the main chamber, under a determined pressure, towards the applicator means.
  • the auxiliary circuit is used not for heating but for cooling the fluid present in the chamber to prevent oxygen from passing above its boiling point.
  • the installation 1 for the application under pressure of a product 2 which, for the said application, must be brought to a temperature above ambient temperature can, for example, be brought by a motor vehicle 3.
  • the application is made, for example, on a support 4 such as the ground.
  • the product is, for example, a hot-melt paint or bitumen etc ...
  • This installation 1 is of the type often called "AIRLESS", that is to say that the application of the product is done without inducing the movement of the product by a powerful flow of air, the projection being due only to the high pressure. with which the product is moved by the pump upstream of the applicator device 7.
  • the installation 1 includes means for adjusting, checking and regulating the aforementioned pressure.
  • the means 16, 17 for controlling the passage of the product are each in particular constituted by a inlet or outlet valve 16a, 17a cooperating with a seat 16b, 17b disposed at the periphery of an orifice 16c, 17c.
  • Each of these parts is itself said entry or exit depending on whether it belongs to the passage means said entry or exit of the product.
  • the control means are mounted in such a way that when one is open and lets the product through, the other is closed.
  • the means 16 for controlling the entry of the product into the main chamber is housed in the end wall 24 of the main chamber of the pump while the means for controlling the outlet of the hot-melt product is housed near otherwise the piston.
  • the heat exchange fluid will be brought to a temperature of the order of two hundred and thirty degrees Celsius to two hundred and sixty degrees Celsius allowing the product to be heated in a reduced time, of the order of ten minutes.
  • each of the inlet and outlet chambers of the annex inlet and outlet circuits is a concentric annular chamber by means of corresponding control.
  • the so-called outlet control means 17 is housed in the piston 11 and the aforementioned outlet circuit 20 passes longitudinally through the rod 14 in order to supply the outlet chamber 21 surrounding said outlet control means 17.
  • the chamber 21 of the output circuit 20 is also concentric with the rod 14 and extends over almost its entire length.
  • the distance between the chamber 21 and the external wall of the piston is as small as possible.
  • heating means are provided to bring some of the product to be applied, others the heat exchange fluid to their temperature and to control the fluctuations thereof.
  • the applicator device 7 may also include a heating circuit (not shown), but this is not essential for the invention.
  • This applicator device consists for example of at least one spray nozzle.
  • the pipes going from the reservoir to the pump and from the pump to the applicator device can also be at least insulated or even heated by a section of annex circuit parallel to said pipe or wrapped around it.
  • the installation can advantageously spray products which are simply more effective when hot, such as brines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coating Apparatus (AREA)
EP93490004A 1992-03-16 1993-03-15 Pumpe zur Aufbringung eines Produktes unter Druck und Einrichtung mit einer solchen Pumpe Withdrawn EP0561726A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9203545 1992-03-16
FR9203545A FR2688549B1 (fr) 1992-03-16 1992-03-16 Pompe pour l'application sous pression d'un produit et installation pourvue de la dite pompe.

Publications (1)

Publication Number Publication Date
EP0561726A1 true EP0561726A1 (de) 1993-09-22

Family

ID=9428025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93490004A Withdrawn EP0561726A1 (de) 1992-03-16 1993-03-15 Pumpe zur Aufbringung eines Produktes unter Druck und Einrichtung mit einer solchen Pumpe

Country Status (2)

Country Link
EP (1) EP0561726A1 (de)
FR (1) FR2688549B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2718796A1 (fr) * 1994-04-13 1995-10-20 Prosign Pompe pour la projection sous pression d'un produit de marquage.
WO1996003217A1 (en) * 1994-07-27 1996-02-08 H.B. Fuller Automotive Technology Systems, Inc. Hydraulic press flow viscometer

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1545475A (en) * 1924-08-27 1925-07-14 Joseph G Richardson Constant-discharge pump
US2579357A (en) * 1945-09-01 1951-12-18 Karl Adolf Hartmann Spray painting apparatus
US2887955A (en) * 1954-06-29 1959-05-26 Texas Instruments Inc Seismic mud pump
US3018968A (en) * 1959-11-17 1962-01-30 Spee Flo Mfg Corp Closed system recirculating assembly
FR1446291A (fr) * 1965-09-07 1966-07-15 Devilbiss Co Installation de distribution d'une matière de revêtement à un pistolet pulvérisateur
US3720373A (en) * 1971-08-30 1973-03-13 G Levey Recirculating paint system or the like
GB1440061A (en) * 1972-04-11 1976-06-23 Burmah Oil Trading Ltd Fluid motors
US4061271A (en) * 1976-10-13 1977-12-06 Kimbrough Wade L Control system for high pressure hydraulic system
FR2535627A1 (fr) * 1982-11-08 1984-05-11 Vigan Sa Dispositif chauffant pour l'application d'un produit pateux, notamment d'une colle ou d'un mastic
EP0387506A1 (de) * 1989-03-11 1990-09-19 Robert Bosch Gmbh Hydraulische Hochdruckpumpe für eine Bremsanlage eines Fahrzeugs

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1545475A (en) * 1924-08-27 1925-07-14 Joseph G Richardson Constant-discharge pump
US2579357A (en) * 1945-09-01 1951-12-18 Karl Adolf Hartmann Spray painting apparatus
US2887955A (en) * 1954-06-29 1959-05-26 Texas Instruments Inc Seismic mud pump
US3018968A (en) * 1959-11-17 1962-01-30 Spee Flo Mfg Corp Closed system recirculating assembly
FR1446291A (fr) * 1965-09-07 1966-07-15 Devilbiss Co Installation de distribution d'une matière de revêtement à un pistolet pulvérisateur
US3720373A (en) * 1971-08-30 1973-03-13 G Levey Recirculating paint system or the like
GB1440061A (en) * 1972-04-11 1976-06-23 Burmah Oil Trading Ltd Fluid motors
US4061271A (en) * 1976-10-13 1977-12-06 Kimbrough Wade L Control system for high pressure hydraulic system
FR2535627A1 (fr) * 1982-11-08 1984-05-11 Vigan Sa Dispositif chauffant pour l'application d'un produit pateux, notamment d'une colle ou d'un mastic
EP0387506A1 (de) * 1989-03-11 1990-09-19 Robert Bosch Gmbh Hydraulische Hochdruckpumpe für eine Bremsanlage eines Fahrzeugs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2718796A1 (fr) * 1994-04-13 1995-10-20 Prosign Pompe pour la projection sous pression d'un produit de marquage.
EP0685649A1 (de) * 1994-04-13 1995-12-06 Prosign S.A. Pumpe zum Spritzen eines Markierungsstoffes
WO1996003217A1 (en) * 1994-07-27 1996-02-08 H.B. Fuller Automotive Technology Systems, Inc. Hydraulic press flow viscometer

Also Published As

Publication number Publication date
FR2688549B1 (fr) 1995-08-11
FR2688549A1 (fr) 1993-09-17

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