EP0374117A3 - Spray apparatus - Google Patents

Spray apparatus Download PDF

Info

Publication number
EP0374117A3
EP0374117A3 EP19890850433 EP89850433A EP0374117A3 EP 0374117 A3 EP0374117 A3 EP 0374117A3 EP 19890850433 EP19890850433 EP 19890850433 EP 89850433 A EP89850433 A EP 89850433A EP 0374117 A3 EP0374117 A3 EP 0374117A3
Authority
EP
European Patent Office
Prior art keywords
pressure
pump housing
spray apparatus
return valve
mobile piston
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Withdrawn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
EP19890850433
Other languages
German (de)
French (fr)
Other versions
EP0374117A2 (en
Inventor
Lars Heijmer
Jörgen Lundberg
Priddu Pukk
Göran Lingström
Ulf Molitor
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.)
Hemo Spray & Pump AB
Original Assignee
Hemo Spray & Pump AB
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 Hemo Spray & Pump AB filed Critical Hemo Spray & Pump AB
Publication of EP0374117A2 publication Critical patent/EP0374117A2/en
Publication of EP0374117A3 publication Critical patent/EP0374117A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
    • F04B49/123—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Reciprocating Pumps (AREA)
  • Nozzles (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

Spray apparatus fo carrier-less high pressure spraying of materials, for example mortar, comprising a pump housing (31) having an inlet (9) for the material with an associated non-return valve (13), and having an outlet (11) for the material with an associated counter-placed non-return valve (23), and pressure means (41) generating alternately pressure and suction for pressurizing and feeding the material. The spray apparatus further comprises a mobile piston (43), which is placed under a determined but adjustable counter-pressure, so that when a pre-selected pressure has been generated in the pump housing (3) this pressure will be maintained at a constant level by displacing the mobile piston (45) outwardly so as to increase the dead volume (51) of the pump housing.
EP19890850433 1988-12-14 1989-12-12 Spray apparatus Withdrawn EP0374117A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8804522 1988-12-14
SE8804522A SE462674B (en) 1988-12-14 1988-12-14 EXTRA GASKET FOR EX EXPACKING INCLUDING A PUMP HOUSE WITH A MOVING PISTON FOR SETTING OF PRESSURE

Publications (2)

Publication Number Publication Date
EP0374117A2 EP0374117A2 (en) 1990-06-20
EP0374117A3 true EP0374117A3 (en) 1991-01-23

Family

ID=20374235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890850433 Withdrawn EP0374117A3 (en) 1988-12-14 1989-12-12 Spray apparatus

Country Status (2)

Country Link
EP (1) EP0374117A3 (en)
SE (1) SE462674B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105756328B (en) * 2016-04-12 2018-04-10 绍兴益森工程机械有限公司 A kind of piston mechanism for being exclusively used in Mortar spraying machine
CN107905502A (en) * 2017-06-07 2018-04-13 闫淑军 A kind of automatic Puttying equipment suitable for roof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653497A1 (en) * 1967-10-02 1971-04-15 Krueger Gmbh H Motor-driven pump for pumping fluids at essentially constant pressure, regardless of the amount withdrawn
DE3248364A1 (en) * 1981-12-28 1983-07-14 Ricoh Co., Ltd., Tokyo Piston pump
GB2137286A (en) * 1983-03-25 1984-10-03 Coal Ind Variable displacement pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653497A1 (en) * 1967-10-02 1971-04-15 Krueger Gmbh H Motor-driven pump for pumping fluids at essentially constant pressure, regardless of the amount withdrawn
DE3248364A1 (en) * 1981-12-28 1983-07-14 Ricoh Co., Ltd., Tokyo Piston pump
GB2137286A (en) * 1983-03-25 1984-10-03 Coal Ind Variable displacement pump

Also Published As

Publication number Publication date
EP0374117A2 (en) 1990-06-20
SE8804522D0 (en) 1988-12-14
SE8804522L (en) 1990-06-15
SE462674B (en) 1990-08-13

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