EP1739306A1 - Pompes à pistons rotatifs - Google Patents

Pompes à pistons rotatifs Download PDF

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Publication number
EP1739306A1
EP1739306A1 EP06013286A EP06013286A EP1739306A1 EP 1739306 A1 EP1739306 A1 EP 1739306A1 EP 06013286 A EP06013286 A EP 06013286A EP 06013286 A EP06013286 A EP 06013286A EP 1739306 A1 EP1739306 A1 EP 1739306A1
Authority
EP
European Patent Office
Prior art keywords
housing
pump
rotary piston
rotary
inlet
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Withdrawn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
EP06013286A
Other languages
German (de)
English (en)
Inventor
Erfindernennung liegt noch nicht vor Die
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.)
Hugo Vogelsang Maschinenbau GmbH
Original Assignee
Hugo Vogelsang Maschinenbau 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 Hugo Vogelsang Maschinenbau GmbH filed Critical Hugo Vogelsang Maschinenbau GmbH
Publication of EP1739306A1 publication Critical patent/EP1739306A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/126—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • F04C2250/101—Geometry of the inlet or outlet of the inlet

Definitions

  • the invention relates to a rotary lobe pump for the promotion of solids-containing liquids, with a pair of in a cross-sectionally substantially oval pump housing in opposite directions rotating driven and rotationally mounted on a respective carrier shaft rotary pistons, each having in the interstices of the other rotary piston engaging wings and off a metallic core and a support made of an elastomeric material, wherein the support in each case during the rotation of the rotary piston sealingly against the inside of the wall of the pump housing and the other rotary piston and with an inlet and an outlet opening.
  • the invention solves this problem by virtue of the fact that at least the inlet opening has a housing half-angle ( ⁇ + ⁇ ) which extends beyond 90 ° and at least in the lower region of the opening.
  • One solution is to increase the housing angle from 180 ° by about 45 ° to about 225 ° on both housing halves so that inlet height and outlet height decrease transversely to the axial plane.
  • the modification of the housing geometry on both sides of the pump has the advantage that now inlet and outlet can be reversed, so that Furthermore, the use of the pump regardless of the direction of rotation of the piston is guaranteed without changing the function.
  • the risk of cavitation bubbles is due to the fact that the liquid can not fill the opening gap fast enough.
  • reducing inlet height causes acceleration of the aspirated fluid toward the opening gaps between the piston wings, thus increasing the local absolute pressure in the fluid. The opening gaps are filled better and the risk of cavitation is reduced.
  • housing angle has been mentally divided into two angular parts, which have 90 ° in the prior art. According to the invention, at least the one lower half housing angle must be extended over this 90 °. In the prior art, no such extension is known for this purpose.
  • the angle ⁇ has now been increased by an additional angle ⁇ .
  • the magnification for the intended purpose in the drawing at the left lower end of the inlet opening 13 is already sufficient to achieve a remarkable effect.
  • the further invention is shown, in which also the outlet housing angle .DELTA..alpha. Has been increased.
  • the corresponding elevations are also located in the upper region of the upper rotary piston 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)
EP06013286A 2005-06-30 2006-06-28 Pompes à pistons rotatifs Withdrawn EP1739306A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520010467 DE202005010467U1 (de) 2005-06-30 2005-06-30 Vorrichtung zur Füllungsoptimierung bei Drehkolbenpumpen

Publications (1)

Publication Number Publication Date
EP1739306A1 true EP1739306A1 (fr) 2007-01-03

Family

ID=37027907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06013286A Withdrawn EP1739306A1 (fr) 2005-06-30 2006-06-28 Pompes à pistons rotatifs

Country Status (2)

Country Link
EP (1) EP1739306A1 (fr)
DE (2) DE202005010467U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009012158U1 (de) * 2009-09-08 2011-02-03 Hugo Vogelsang Maschinenbau Gmbh Drehkolbenpumpe
CN104285063A (zh) * 2012-05-02 2015-01-14 奈赤－泵和***有限责任公司 具有优化的入口和出口的旋转式活塞泵
US9127673B2 (en) 2010-08-20 2015-09-08 Hugo Vogelsang Maschinenbau Gmbh Rotary lobe pump having inlet and outlet aligned with gearbox casing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206699B4 (de) * 2012-04-24 2020-12-10 Robert Bosch Gmbh Zahnradmaschine mit wannenartiger Vertiefung an der Außenoberfläche des Gehäuses

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US15221A (en) * 1856-07-01 Rotary pump
US2848952A (en) * 1953-05-29 1958-08-26 Creamery Package Mfg Co Pump construction
US3126834A (en) * 1964-03-31 bursak
DE3427282A1 (de) * 1984-07-24 1986-01-30 Gerhard 8300 Landshut Eckart Drehkolbenpumpe zur foerderung von guelle o.dgl.
DE29723984U1 (de) * 1997-04-15 1999-09-09 Börger GmbH, 46325 Borken Drehkolbenpumpe
NL1016283C1 (nl) * 2000-09-27 2002-03-28 Fred Jan Dekker Verbeterde doeltreffend flexibel afgedichte tandwielpomp.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US15221A (en) * 1856-07-01 Rotary pump
US3126834A (en) * 1964-03-31 bursak
US2848952A (en) * 1953-05-29 1958-08-26 Creamery Package Mfg Co Pump construction
DE3427282A1 (de) * 1984-07-24 1986-01-30 Gerhard 8300 Landshut Eckart Drehkolbenpumpe zur foerderung von guelle o.dgl.
DE29723984U1 (de) * 1997-04-15 1999-09-09 Börger GmbH, 46325 Borken Drehkolbenpumpe
NL1016283C1 (nl) * 2000-09-27 2002-03-28 Fred Jan Dekker Verbeterde doeltreffend flexibel afgedichte tandwielpomp.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009012158U1 (de) * 2009-09-08 2011-02-03 Hugo Vogelsang Maschinenbau Gmbh Drehkolbenpumpe
US20120207638A1 (en) * 2009-09-08 2012-08-16 Paul Krampe Rotary piston pump
US9732749B2 (en) * 2009-09-08 2017-08-15 Hugo Vogelsang Maschinenbau Gmbh Rotary piston pump having converging inlet and outlet openings for conveying a fluid medium containing solids
US9127673B2 (en) 2010-08-20 2015-09-08 Hugo Vogelsang Maschinenbau Gmbh Rotary lobe pump having inlet and outlet aligned with gearbox casing
CN104285063A (zh) * 2012-05-02 2015-01-14 奈赤－泵和***有限责任公司 具有优化的入口和出口的旋转式活塞泵

Also Published As

Publication number Publication date
DE202005010467U1 (de) 2006-11-09
DE202006020113U1 (de) 2007-11-29

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