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WO1994027048A1 - Machine de type rotatif - Google Patents

Machine de type rotatif Download PDF

Info

Publication number
WO1994027048A1
WO1994027048A1 PCT/HU1994/000013 HU9400013W WO9427048A1 WO 1994027048 A1 WO1994027048 A1 WO 1994027048A1 HU 9400013 W HU9400013 W HU 9400013W WO 9427048 A1 WO9427048 A1 WO 9427048A1
Authority
WO
WIPO (PCT)
Prior art keywords
channels
housing
disc
rotary machine
rolls
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.)
Ceased
Application number
PCT/HU1994/000013
Other languages
English (en)
Inventor
Gyo^'z^o' FERENCZY
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.)
Diosgyo^'ri Szivatiyugyar Kft
Original Assignee
Diosgyo^'ri Szivatiyugyar Kft
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 Diosgyo^'ri Szivatiyugyar Kft filed Critical Diosgyo^'ri Szivatiyugyar Kft
Priority to AU70082/94A priority Critical patent/AU7008294A/en
Publication of WO1994027048A1 publication Critical patent/WO1994027048A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/14—Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F04B43/1269—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing the rotary axes of the rollers lying in a plane perpendicular to the rotary axis of the driving motor

Definitions

  • the present invention relates to a rotary machine for delivering liquids or gases comprising a driving unit coupled with a rotating part, a housing provided with suction and delivery openings and a stationary part arrranged in said housing.
  • turbine pumps screw pumps
  • piston pumps piston pumps
  • membrane pumps are generally used for delivering fluids.
  • Turbine pumps have a rather high delivery and piston pumps have rather high lift. At the same time, the turbine pumps have rather low lift and the piston pumps have rather small delivery. Accordingly, neither of these pumps has an advantageous performance characteristics for the practice.
  • the membrane pumps have rather low lift as well as delivery and, at the same time have to be provided with rectification valves, and a mechanism for producing reciprocating motion which is rather disadvantageous with respect to the construction and the costs. Further disadvantage is the pulsating character of the delivery. Accordingly, membrane pumps are rarely used in the practice.
  • Screw pumps would be optimal for medium power and delivery requirements. This type of pumps is, however, rather complicated and expensive on the one hand, and has a rather high energy consumption, on the other hand. Furthermore, there are significant frictions within the pump, which would result in a relatively quick wearing.
  • a pump which comprises an elastic hose and rolls which are moving on said elastic hose in a way that closed sections within the hose deliver some fluid from one end of the hose to the other end thereof.
  • the use of such types of pumps is rather limited because of the low lift and delivery. Further disatvantage of that pump is the quick wearing of the hose which is pressed and released continuously.
  • the object of the present invention is to provide a self-priming rotary displacement machine (pump or compressor) of relatively simple construction and good performance characteristics which does not contain reciprocating parts or valves.
  • a further object of the invention is to minimise the friction between the elements moving with respect to each other and to avoid any planetary movement
  • the invention is a rotary machine for delivering liquids or gases comprising a driving unit coupled with a rotating part, a housing provided with suction and delivery openings and a stationary part arranged in said housing.
  • the machine according to the invention may be a pump or compressor and is very advantageous among others for pumping corrosive and erodent fluids or compressing gases, wherein, according to the invention, the rotating part is provided with rolls rotatably mounted on shafts arranged radially with respect to the axis of rotation of the machine, said stationary part is an elastic disc provided with channels within said disc and with ribs on the surface facing the rolls along said channels, wherein each of the channels are including an angle with the respective radii and one end thereof is connected to the suction opening, the other one to the pressure opening.
  • the rolls are of conical shape having a greater diameter radially outside than inside and are arranged in uniform distances from each other along a circle coaxial with the axis of rotation.
  • the respecitve heights of the ribs are greater than that of the channels in the same axial directions.
  • the elastic discs preferably consists of two parts in axial direction: a supported part at the front wall of the housing and a pressed part facing the inside of the housing, the channels being between these two parts.
  • the opposite walls of the channels defined by the parts if the disc have arcuate shapes wherein the radius of the wall at the front wall is smaller than that of the other wall.
  • the parts of the disc are connected to each other by ribs and grooves on and in their opposite surfaces, respectively.
  • the parts of the disc may also be connected by inserts fitting into grooves in their opposite surfaces and having radial extensions reaching the channels by thin edges.
  • the angle between the channels and the radii is continously changing along the channels, i.e. the channels are spiral ones.
  • the main point of the invention is therefore the elastic disc which is arranged between the front wall of the housing and the rolls of the rotating part, and comprises channels for delivering fluid from the suction opening to the pressure opening, due to the movement of the rolls which produces closed sections filled with fluid.
  • the invention is based on the recognition that an elastic disc provided with channels is rigid enough for producing rather high pressures and, at the same time, it is elastic enough to realize a delivery by producing closed sections.
  • the rather high number of rotation enables a rather high delivery, meanwhile relatively low deformation is produced, which results in a relatively low load and long life time.
  • the machine is working without surface friction, which also increases the working life and reduces energie consumtion.
  • the rotating elemlent comprising the rolls can work separated from the fluid delivered. Accordingly, lubrication may be ideal and no stuffing box is needed. All these parameters ensure a relatively high efficiency.
  • a proper choice of the materials for the housing and the disc enables to use the pump according to the invention for delivering chemicals as well as corrosive fluids.
  • Figure 1 is the longitudinal section of a pump according the invention
  • Figure 2 is a cross-section of the disc applied in the pump according to Fig. 1.
  • Figure 3 is the radial section of a part of a disc and
  • Figure 4 is the radial section of the disc according to another embodiment.
  • the pump comprises a housing 1 connected to a driving unit 2.
  • a housing 1 In this housing 1 there is an elastic disc 3.
  • a pressure chamber 4 Between the upper wall 1a of the housing 1 and the disc 3, there is a pressure chamber 4 which is provided with a delivery opening 5.
  • a suction opening 7 Coaxial with the rotation axis 6, there is a suction opening 7.
  • channels 8 extending from the rotation axis 6 until the pressure chamber 4.
  • the channels 8 according to the embodiment in Figure 1 are of a spiral form as shown in Figure 2. That means that the angle ⁇ between the tangents of a channel 8 and the respective radius of the disc 3 is changing continously. Accordingly: ⁇ 2 > ⁇ 1
  • a carrier 9 is fixed on the shaft 10 of the driving unit 2 and the rotating part 11 of the machine is arranged between the carrier 9 and the disc 3.
  • the rotating part 11 according to the embodiment shown in Figure 1 consists of a hub 13 and a crown
  • the crown 14 rolls 15 are rotatably mounted on radial shafts 16.
  • the rolls 15 are of conical shape the smaller ends facing the rotation axis 6.
  • the outer surface of the carrier 9 and the inner wall are provided with high pitch thread 12 and stop elements (not shown).
  • a spiral ring 17 is arranged between the crown 14 and a support cup 18.
  • the structure of the elastic disc 3 is shown in Figures 2 to 4.
  • Disc 3 is made of two parts 3a and 3b and these two parts are connected by ribs 19 and corresponding grooves 20 according to the embodiment in Figure 3.
  • Channels 8 are generally defined by two opposite walls 21 and 22 of arcuate shape wherein the radius R2 of the arc at the front wall 1a of the housing is smaller than that of the opposite arc.
  • connection between the two parts according to Figure 4 is produced by grooves 20a and 20b in the opposite parts and inserts 23 provided with extensions 24. Extensions 25 are arranged in a way that they reach channel 8 at the edges between the upper and lower walls 21, 22.
  • Elastic disc 3 is provided with ribs 25 on their surface facing the inner space of the housing 1.
  • the height h of ribs 25 is preferably greater than the height t ⁇ of the channels 8 in the corresponding axial direction.
  • the surface of the elastic disc 3 contacting the upper wall 1 a of the housing 1 is preferably provided with grooves 26 at the sides of the channels 8.
  • the machine according to the invention operates as follows.
  • Grooves 26 on both sides of the channels 8 make easier the closing of the channels 8 and therefore stress peaks in the elastic material of the disc 3 may be avoided.
  • a disc of 100 mm diameter provided with six channels has a useful volume of about 1 cm 3 . If there are 4 rolls in the rotating part and the driving unit is rotating with a 2880 rpm, the delivery can be calculated as follows (if the efficiency coefficient is 0.8):
  • the lift of the pump can be limited by applying elastic rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention se rapporte à une machine rotative de transport de liquides ou de gaz comprenant une unité d'entraînement (2) reliée à une partie rotative (11), un boîtier (1) muni d'orifices d'aspiration et de refoulement (5, 7) et comportant une partie fixe (3). La machine selon l'invention peut être une pompe ou un compresseur et permet entre autre de pomper avantageusement des fluides corrosifs et érosifs ou des gaz de compression. La partie rotative (11) est muni de rouleaux (15) pouvant tourner autour d'arbres (16) disposés radialement par rapport à l'axe de rotation (6) de la machine. La partie fixe est constituée d'un disque élastique (3) pourvu de canaux (8) à l'intérieur de celui-ci et de nervures (25) situées sur la surface orientées vers les rouleaux (15) le long des canaux (8). Chacun des canaux forme un angle avec les rayons respectifs, l'une des leurs extrémités étant reliées à l'orifice d'aspiration (7), l'autre étant reliée à l'orifice de pression (5). Les rouleaux (15) sont de forme conique et présentent un diamètre radial externe supérieur au diamètre interne et sont espacés uniformément les uns des autres selon un cercle dont le centre est confondu avec l'axe de rotation (6). La hauteur (h) des nervures (25) est supérieure à celle des canaux (8) dans le même sens axial. De préférence, les disques élastiques (3) sont consitués de deux parties (3a, 3b) dans le sens axial: une partie de support (da) située au niveau de la paroi avant du boîtier et une partie comprimée (3b) face à l'intérieur du boîtier (1), les canaux (8) se situant entre ces deux parties (3a, 3b).
PCT/HU1994/000013 1993-05-10 1994-05-10 Machine de type rotatif Ceased WO1994027048A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU70082/94A AU7008294A (en) 1993-05-10 1994-05-10 Rotary machine for delivering liquids or gases

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUP9301340 1993-05-10
HU9301340A HU211413B (en) 1993-05-10 1993-05-10 Rotary membran pump for passing fluids and gases

Publications (1)

Publication Number Publication Date
WO1994027048A1 true WO1994027048A1 (fr) 1994-11-24

Family

ID=10983569

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU1994/000013 Ceased WO1994027048A1 (fr) 1993-05-10 1994-05-10 Machine de type rotatif

Country Status (3)

Country Link
AU (1) AU7008294A (fr)
HU (1) HU211413B (fr)
WO (1) WO1994027048A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6825285B2 (en) 2000-12-21 2004-11-30 The Procter & Gamble Company Biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties
US6838037B2 (en) 2000-12-21 2005-01-04 The Procter & Gamble Company Method for making biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties
WO2015173926A1 (fr) * 2014-05-15 2015-11-19 高砂電気工業株式会社 Micro-pompe péristaltique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE573751C (de) * 1929-08-07 1933-04-05 Siccameter A G Volumenmesser fuer stroemende Medien
US3684408A (en) * 1970-07-29 1972-08-15 Electro Nucleonics Peristaltic metering and dispensing pump
US4544329A (en) * 1983-01-14 1985-10-01 Windsor Medical, Inc. Peristaltic pump having a spiral cam and straight peristaltic tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE573751C (de) * 1929-08-07 1933-04-05 Siccameter A G Volumenmesser fuer stroemende Medien
US3684408A (en) * 1970-07-29 1972-08-15 Electro Nucleonics Peristaltic metering and dispensing pump
US4544329A (en) * 1983-01-14 1985-10-01 Windsor Medical, Inc. Peristaltic pump having a spiral cam and straight peristaltic tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Section P, Q, week 8638, 29 October 1986, Derwent Publications Ltd London, Q 56; & SU,A,1 208 310 (SAPUNOV). *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6825285B2 (en) 2000-12-21 2004-11-30 The Procter & Gamble Company Biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties
US6838037B2 (en) 2000-12-21 2005-01-04 The Procter & Gamble Company Method for making biodegradable polyhydroxyalkanoate copolymers having improved crystallization properties
WO2015173926A1 (fr) * 2014-05-15 2015-11-19 高砂電気工業株式会社 Micro-pompe péristaltique
JPWO2015173926A1 (ja) * 2014-05-15 2017-04-20 高砂電気工業株式会社 マイクロ蠕動ポンプ

Also Published As

Publication number Publication date
AU7008294A (en) 1994-12-12
HU9301340D0 (en) 1993-09-28
HUT66329A (en) 1994-11-28
HU211413B (en) 1995-11-28

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