EP0519154A1 - Verfahren zur Erzeugung hoher Flüssigkeitsdruckimpulse, Vorrichtung zur Durchführung des Verfahrens und Verwendung der Vorrichtung als Hochdruckreiniger - Google Patents

Verfahren zur Erzeugung hoher Flüssigkeitsdruckimpulse, Vorrichtung zur Durchführung des Verfahrens und Verwendung der Vorrichtung als Hochdruckreiniger Download PDF

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Publication number
EP0519154A1
EP0519154A1 EP92101240A EP92101240A EP0519154A1 EP 0519154 A1 EP0519154 A1 EP 0519154A1 EP 92101240 A EP92101240 A EP 92101240A EP 92101240 A EP92101240 A EP 92101240A EP 0519154 A1 EP0519154 A1 EP 0519154A1
Authority
EP
European Patent Office
Prior art keywords
rotary piston
liquid
pressure
recess
depression
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Withdrawn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
EP92101240A
Other languages
German (de)
English (en)
French (fr)
Inventor
Wilfried Dziersk
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.)
Tzn Forschungs- und Entwicklungszentrum Unterluess GmbH
Original Assignee
Tzn Forschungs- und Entwicklungszentrum Unterluess GmbH
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 Tzn Forschungs- und Entwicklungszentrum Unterluess GmbH filed Critical Tzn Forschungs- und Entwicklungszentrum Unterluess GmbH
Publication of EP0519154A1 publication Critical patent/EP0519154A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration

Definitions

  • the invention relates to a method for generating high fluid pressure pulses.
  • the invention further relates to a device for carrying out the method and to a use of the device according to the invention as a high-pressure cleaner.
  • the invention has for its object to provide a simple and inexpensive method for generating high liquid pressure pulses. Furthermore, an apparatus for performing the method is to be disclosed.
  • the invention is based on the idea of generating the liquid pressure by partially evaporating the liquid in a recess of a rotary piston which is open on one side.
  • a defined short circuit is generated via two electrodes, so that the energy released during the short circuit evaporates part of the liquid.
  • the liquid does not have to be additionally heated.
  • the device according to the invention additionally has the particular advantages that both the pressure and the pulse frequency can be set by the choice of the electrical values (current strength, length of the current pulse).
  • the device is relatively small and can be connected to the domestic water line.
  • FIGS. 1 and 2 denotes a device according to the invention (liquid pressure pump). It essentially consists of a housing 2, a rotary piston 3 arranged in the housing 2, an axial compressor wheel 4 and a pair of electrodes 5 and 6, which are connected to a controllable current source 7 via electrical lines 8 and 9.
  • the liquid is provided with the reference number 10.
  • the housing 2 has a vacuum chamber 20, one wall of which is formed by the rotary piston 3. 21 is an inlet line (FIG. 2) through which the liquid 10 enters the pump 1 and 22 (FIG. 1) denotes an outlet or pressure line. The latter serves to forward the pulsed liquid pressure pulses.
  • the vacuum chamber 20 and the pressure line 22 are connected to one another via a pipe 23.
  • the flanges for connecting external pipelines are labeled 25 and 26.
  • the rotary piston 3 is constructed in the shape of a cylinder and has an axis 30 on which the axial compressor wheel 4 is also arranged and four recesses 31-34.
  • the depressions 31-34 extend from the lateral surface 35 into the interior of the rotary piston.
  • the depressions 31-34 are groove-shaped and each extend up to the end faces 36, 37 of the rotary piston (cf. also FIG. 3).
  • the direction of the longitudinal axis 39 'of the depressions 31-34 is selected such that the extension of the axis 39' does not intersect the central axis 39 of the rotary piston 3.
  • magnets 38 are attached to the rotary piston 3.
  • Corresponding magnets are also arranged on the housing 2 and have been omitted for the sake of a better overview.
  • FIGS. 1 and 2 The mode of operation of the device according to the invention shown in FIGS. 1 and 2 is discussed in more detail below, water being used as the liquid: As shown in Fig.1, 3 may be in the recess 31 of the rotary piston.
  • a voltage is applied to the electrodes 5 and 6 (FIG. 2) in the housing 2 via the lines 8 and 9.
  • a current then flows from the controllable current source 7 via the line 8, the electrode 5, the water 10 located in the depression 31, the electrode 6 and the line 9. If the current is sufficiently large, part of the water is evaporated and generated thus an overpressure that presses the remaining water through the pressure line 22 into the open.
  • a correspondingly large current pulse then leads to a corresponding pressure pulse.
  • a vacuum is generated on the wall of the pressure line 22 by the water 10 flowing past, and thus the vacuum space 20 connected to the pressure line 22 via the pipe 23 is evacuated.
  • the Rotary piston 3 is set in rotation, the recess 31 moves into the positions which have the recesses 32 and 33 in Fig.1.
  • the overpressure originally prevailing after the partial evaporation of the water in the depression 31 is reduced when this depression is led past the vacuum chamber 20. There is even a slight negative pressure in the depression 31.
  • the axial compressor wheel 4 shown in FIG. 2 is intended on the one hand to serve the purpose of pushing the water laterally through the depressions and thus to increase the negative pressure in the depressions.
  • the axial compressor wheel 4 serves as a rotation brake of the rotary piston 3 against uncontrolled run-up.
  • the invention is not restricted to the exemplary embodiment described. So it is of course also possible to provide holes instead of the groove-shaped depressions.
  • the electrodes 5 and 6 can also be firmly connected to the rotary piston 3 instead of the housing. In this case, the electrical connection between the lines 8 and 9 and the electrodes 5 and 6 can be made via contacts, the current pulses being regulated in a timely manner with the aid of the current source 7.

Landscapes

  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP92101240A 1991-06-20 1992-01-27 Verfahren zur Erzeugung hoher Flüssigkeitsdruckimpulse, Vorrichtung zur Durchführung des Verfahrens und Verwendung der Vorrichtung als Hochdruckreiniger Withdrawn EP0519154A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914120372 DE4120372A1 (de) 1991-06-20 1991-06-20 Verfahren zur erzeugung hoher fluessigkeitsdruckimpulse, vorrichtung zur druchfuehrung des verfahrens und verwendung der vorrichtung als hochdruckreiniger
DE4120372 1991-06-20

Publications (1)

Publication Number Publication Date
EP0519154A1 true EP0519154A1 (de) 1992-12-23

Family

ID=6434371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92101240A Withdrawn EP0519154A1 (de) 1991-06-20 1992-01-27 Verfahren zur Erzeugung hoher Flüssigkeitsdruckimpulse, Vorrichtung zur Durchführung des Verfahrens und Verwendung der Vorrichtung als Hochdruckreiniger

Country Status (4)

Country Link
EP (1) EP0519154A1 (enrdf_load_stackoverflow)
JP (1) JPH05215077A (enrdf_load_stackoverflow)
CA (1) CA2071052A1 (enrdf_load_stackoverflow)
DE (1) DE4120372A1 (enrdf_load_stackoverflow)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048152B (de) * 1956-06-21 1958-12-31 Austria Email Ag Vorrichtung zum intermittierenden Foerdern von Fluessigkeiten
US3185106A (en) * 1963-08-28 1965-05-25 Ingersoll Rand Co Spark pumps
US3266438A (en) * 1965-07-21 1966-08-16 William H Savage Pumps
JPH0718408B2 (ja) * 1986-06-23 1995-03-06 謙治 岡安 熱駆動ポンプ
DE3810341A1 (de) * 1988-03-17 1989-09-28 Suttner Gmbh & Co Kg Fluessigkeitsfoerdereinrichtung, insbesondere hochdruckreinigungseinrichtung
US4852357A (en) * 1988-10-14 1989-08-01 Ncr Corporation Cryogenic liquid pump

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SOVIET PATENTS ABSTRACTS, PQ Sektion, Woche 24, 31. Juli 1991 DERWENT PUBLIKATIONS LTD., London Seite 43 *
SOVIET PATENTS ABSTRACTS, PQ Sektion, Woche 45, 19. Dezember 1990 DERWENT PUBLIKATIONS LTD., London Seite 43 *

Also Published As

Publication number Publication date
DE4120372C2 (enrdf_load_stackoverflow) 1993-05-19
CA2071052A1 (en) 1992-12-21
JPH05215077A (ja) 1993-08-24
DE4120372A1 (de) 1992-12-24

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