EP0799996A3 - Epitrochoidal pump - Google Patents

Epitrochoidal pump Download PDF

Info

Publication number
EP0799996A3
EP0799996A3 EP97830155A EP97830155A EP0799996A3 EP 0799996 A3 EP0799996 A3 EP 0799996A3 EP 97830155 A EP97830155 A EP 97830155A EP 97830155 A EP97830155 A EP 97830155A EP 0799996 A3 EP0799996 A3 EP 0799996A3
Authority
EP
European Patent Office
Prior art keywords
rotor
chamber
epitrochoidal
pump
ducts
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Withdrawn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
EP97830155A
Other languages
German (de)
French (fr)
Other versions
EP0799996A2 (en
Inventor
Vittorio Bertoli
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0799996A2 publication Critical patent/EP0799996A2/en
Publication of EP0799996A3 publication Critical patent/EP0799996A3/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Withdrawn legal-status Critical Current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
    • 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
    • F04C2/22—Rotary-piston machines or pumps of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

The invention falls within the sector of volumetric pumps and relates to an epitrochoidal pump, comprising:
  • at least one rotor (6) which performs a roto- translatory movement inside a chamber (5) with a trochoidal profile and is driven by an epitrochoidal gearing (7, 8);
  • separator elements (16) applied to the rotor (6) and to the walls of the chamber (5) so as to define inside said chamber (5) at least three areas which are separate from one another and the positioning and volume of which vary cyclically owing to the movement of the rotor (6);
  • two inlets for suction ducts (10, 11) and two outlets for delivery ducts (13, 14) arranged inside the chamber (5) so that, whatever the position of the rotor (6), both a suction duct and a delivery duct are always active.
EP97830155A 1996-04-04 1997-03-28 Epitrochoidal pump Withdrawn EP0799996A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96PR000017A ITPR960017A1 (en) 1996-04-04 1996-04-04 EPITROCOIDAL PUMP
ITPR960017 1996-04-04

Publications (2)

Publication Number Publication Date
EP0799996A2 EP0799996A2 (en) 1997-10-08
EP0799996A3 true EP0799996A3 (en) 1998-08-19

Family

ID=11396001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97830155A Withdrawn EP0799996A3 (en) 1996-04-04 1997-03-28 Epitrochoidal pump

Country Status (2)

Country Link
EP (1) EP0799996A3 (en)
IT (1) ITPR960017A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040011036A (en) * 2002-07-26 2004-02-05 엘지전자 주식회사 Structure for prevention wear of wankel-type compressor
FR2844312B1 (en) 2002-09-05 2006-04-28 Centre Nat Rech Scient ROTATING MACHINE WITH CAPSULISM
GB0419848D0 (en) * 2004-09-07 2004-10-13 Carbonate Ltd Pumps
DE102004052928B4 (en) * 2004-10-29 2009-06-04 Herbert Jung Pump, in particular sludge pump
DE102012020326A1 (en) * 2012-10-17 2014-04-17 Herbert Jung Rotary piston displacement
WO2018073620A1 (en) * 2016-10-18 2018-04-26 Станиславс МИРОПОЛЕЦС Rotary piston pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342088A (en) * 1940-07-27 1944-02-15 Trico Products Corp Pump
US4137024A (en) * 1977-07-18 1979-01-30 Curtiss-Wright Corporation Rotor for rotary piston mechanism
US4389172A (en) * 1980-10-20 1983-06-21 Curtiss-Wright Corporation Rotary compressor or expansion engine of hypotrochoidal configuration and angularly displaced gear means
US4551073A (en) * 1982-05-12 1985-11-05 Walter Schwab Pump for liquid and gaseous fluids, especially blood
GB2215403A (en) * 1988-03-10 1989-09-20 Hydrovane Compressor Rotary compressors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342088A (en) * 1940-07-27 1944-02-15 Trico Products Corp Pump
US4137024A (en) * 1977-07-18 1979-01-30 Curtiss-Wright Corporation Rotor for rotary piston mechanism
US4389172A (en) * 1980-10-20 1983-06-21 Curtiss-Wright Corporation Rotary compressor or expansion engine of hypotrochoidal configuration and angularly displaced gear means
US4551073A (en) * 1982-05-12 1985-11-05 Walter Schwab Pump for liquid and gaseous fluids, especially blood
GB2215403A (en) * 1988-03-10 1989-09-20 Hydrovane Compressor Rotary compressors

Also Published As

Publication number Publication date
EP0799996A2 (en) 1997-10-08
ITPR960017A0 (en) 1996-04-04
ITPR960017A1 (en) 1997-10-06

Similar Documents

Publication Publication Date Title
EP1126176A3 (en) Motor driven double suction pump
AU2003301330A1 (en) Compressor unit
EP1402908A3 (en) Blood pump device and method of producing
EP1041289A3 (en) Direct drive compressor assembly
EP1039137A3 (en) Turbo-molecular pump
EP0974753A3 (en) Axial piston pump
GB2137696A (en) Rotary vacuum pump
EP0809029A3 (en) Compressor
EP1101942A3 (en) Evacuating apparatus
EP0887552A3 (en) Air pump
EP0866643A3 (en) Microwave oven
WO2001012992A3 (en) Compressor
EP0799996A3 (en) Epitrochoidal pump
CN101002024A (en) Blade for a single-blade vacuum pump
SE9803895D0 (en) Pump arrangement
KR900008015B1 (en) Air-compressor
EP1347176A3 (en) Vacuum pump
EP1277965A3 (en) Centrifugal pump
EP1130264A3 (en) Compound vacuum pumps
EP0974756A3 (en) Vacuum pump and vacuum apparatus
EP0828079A3 (en) Lysholm compressors
EP0053868A3 (en) Nutating piston pump
EP1236901A3 (en) Shaft seal structure of vacuum pumps
EP1043502A3 (en) Rotary pump
CA2254913A1 (en) Configuration of an atmospheric pressure ion source

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL PT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL PT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19990220