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DK1132618T3 - Positive displacement rotary pump with helical rotors - Google Patents

Positive displacement rotary pump with helical rotors

Info

Publication number
DK1132618T3
DK1132618T3 DK01105738T DK01105738T DK1132618T3 DK 1132618 T3 DK1132618 T3 DK 1132618T3 DK 01105738 T DK01105738 T DK 01105738T DK 01105738 T DK01105738 T DK 01105738T DK 1132618 T3 DK1132618 T3 DK 1132618T3
Authority
DK
Denmark
Prior art keywords
teeth
rotary pump
displacement rotary
positive displacement
gears
Prior art date
Application number
DK01105738T
Other languages
Danish (da)
Inventor
Mario Antonio Morselli
Original Assignee
Mario Antonio Morselli
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11438276&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1132618(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mario Antonio Morselli filed Critical Mario Antonio Morselli
Application granted granted Critical
Publication of DK1132618T3 publication Critical patent/DK1132618T3/en

Links

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
    • F04C2/084—Toothed wheels
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • 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
    • F04C2/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement
    • 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
    • F04C2/16—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 helical teeth, e.g. chevron-shaped, screw type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

A positive-displacement rotary pump comprises a pair of meshing rotors or gears (10, 11), that is, a driving rotor or gear and a driven rotor or gear, respectively, enclosed in a casing with a delivery opening and an intake opening for a fluid. The gears (10, 11) comprise a plurality of teeth (16a, 16b) meshing without encapsulation and at the same time defining sets of helical teeth with a face overlap substantially equal to or close to unity. The combination of a profile of the teeth which prevents encapsulation and of the helical arrangement of the teeth reduces ripple and the noise resulting therefrom when the pump is in operation.
DK01105738T 2000-03-08 2001-03-08 Positive displacement rotary pump with helical rotors DK1132618T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2000BO000119A ITBO20000119A1 (en) 2000-03-08 2000-03-08 VOLUMETRIC ROTARY PUMP WITH HELICAL ROTORS.

Publications (1)

Publication Number Publication Date
DK1132618T3 true DK1132618T3 (en) 2008-08-25

Family

ID=11438276

Family Applications (1)

Application Number Title Priority Date Filing Date
DK01105738T DK1132618T3 (en) 2000-03-08 2001-03-08 Positive displacement rotary pump with helical rotors

Country Status (6)

Country Link
EP (2) EP1921319A3 (en)
AT (1) ATE393882T1 (en)
DE (1) DE60133786T2 (en)
DK (1) DK1132618T3 (en)
ES (1) ES2306681T3 (en)
IT (1) ITBO20000119A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1371848B1 (en) 2002-06-12 2006-01-04 Mario Antonio Morselli Gear pump with spline function generated gear profile
US6887055B2 (en) 2002-10-25 2005-05-03 Mario Antonio Morselli Positive-displacement rotary pump
US7530217B2 (en) 2005-12-16 2009-05-12 General Electric Company Axial flow positive displacement gas generator with combustion extending into an expansion section
US7726115B2 (en) 2006-02-02 2010-06-01 General Electric Company Axial flow positive displacement worm compressor
ITBO20070172A1 (en) 2007-03-14 2008-09-15 Mario Antonio Morselli HYDRAULIC EQUIPMENT WITH REFINED GEARS
US8708643B2 (en) 2007-08-14 2014-04-29 General Electric Company Counter-rotatable fan gas turbine engine with axial flow positive displacement worm gas generator
US7854111B2 (en) 2008-03-07 2010-12-21 General Electric Company Axial flow positive displacement turbine
IT1390747B1 (en) * 2008-08-12 2011-09-23 Settima Flow Mechanisms Srl ROTARY GEAR VOLUMETRIC PUMP
US9404366B2 (en) 2009-10-30 2016-08-02 Settima Meccanica S.R.L. Gear wheel with profile capable of meshing with semi-encapsulation in a geared hydraulic apparatus
IT1398817B1 (en) * 2009-10-30 2013-03-21 Morselli TOOTHED WHEEL WITH PROFILE TO ENGAGE WITH SEMI-INCAPSULATION IN A GEAR HYDRAULIC EQUIPMENT
DE102010005900A1 (en) * 2010-01-27 2011-07-28 Robert Bosch GmbH, 70469 Hydraulic gear machine
ITRM20110378A1 (en) 2011-07-19 2013-01-20 Mario Antonio Morselli ROTARY VOLUMETRIC PUMP WITH BIELICOIDAL TOOTHED WHEELS
CN103850932A (en) * 2012-12-05 2014-06-11 上海易昆机械工程有限公司 Pulseless rotor pump
CN103486023B (en) * 2013-07-10 2015-10-28 重庆德衡科技有限公司 Screw pump and screw rod
RU2553848C1 (en) * 2014-05-28 2015-06-20 Виктор Владимирович Становской Gear machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1620261A (en) * 1924-06-11 1927-03-08 Laval Steam Turbine Co Rotary gear pump
US1742597A (en) * 1927-05-20 1930-01-07 Joseph Mercadante Rotary pump
GB661329A (en) * 1948-06-24 1951-11-21 Guinard Paul Andre Balanced screw pumps
US3164099A (en) * 1961-08-09 1965-01-05 Iyoi Hitosi Toothed profiles of rotors of gear pump
US3658452A (en) * 1969-11-18 1972-04-25 Shimadzu Corp Gear pump or motor
US4017223A (en) * 1975-03-24 1977-04-12 Houdaille Industries, Inc. Axial thrust adjustment for dual screw-type pump
DE2828348A1 (en) * 1978-06-28 1980-01-10 Allweiler Ag SCREW MACHINE
IT1124357B (en) * 1979-11-23 1986-05-07 Marzocchi Paolo & Adriano REFINEMENTS PARTICULARLY SUITABLE FOR PUMPS AND HYDRAULIC GEAR TYPE MOTORS
DE3920901C2 (en) * 1989-06-26 1995-02-16 Allweiler Ag Screw pump
DE4330085A1 (en) * 1993-09-06 1995-03-09 Hugo Vogelsang Maschinenbau Gm Rotary piston for positive displacement pumps using the Roots principle for incompressible media
IT1283389B1 (en) 1995-03-10 1998-04-17 Stem Numerical Engineering Srl PROFILES FOR ROOTS COMPRESSOR ROTORS

Also Published As

Publication number Publication date
EP1132618A3 (en) 2002-07-10
ITBO20000119A1 (en) 2001-09-10
DE60133786T2 (en) 2009-06-25
ATE393882T1 (en) 2008-05-15
EP1921319A3 (en) 2008-06-25
EP1132618A2 (en) 2001-09-12
EP1132618B1 (en) 2008-04-30
EP1921319A2 (en) 2008-05-14
ES2306681T3 (en) 2008-11-16
DE60133786D1 (en) 2008-06-12

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