CA2201987A1 - A device with coaxial, opposite, modular pistons with double eccentric cams or similar, for floated pumps - Google Patents

A device with coaxial, opposite, modular pistons with double eccentric cams or similar, for floated pumps

Info

Publication number
CA2201987A1
CA2201987A1 CA2201987A CA2201987A CA2201987A1 CA 2201987 A1 CA2201987 A1 CA 2201987A1 CA 2201987 A CA2201987 A CA 2201987A CA 2201987 A CA2201987 A CA 2201987A CA 2201987 A1 CA2201987 A1 CA 2201987A1
Authority
CA
Canada
Prior art keywords
pistons
floated
modular
pumps
coaxial
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.)
Granted
Application number
CA2201987A
Other languages
French (fr)
Other versions
CA2201987C (en
Inventor
Giovanni Cefis
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.)
MENCARELLI GIORGIO
Original Assignee
Mencarelli, Giorgio
Giovanni Cefis
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 Mencarelli, Giorgio, Giovanni Cefis filed Critical Mencarelli, Giorgio
Publication of CA2201987A1 publication Critical patent/CA2201987A1/en
Application granted granted Critical
Publication of CA2201987C publication Critical patent/CA2201987C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

A device for floated pumps with coaxial, opposite, modular pistons (7), operated by double eccentric cams (5), comprises pumping groups operating in parallel onto one and the same working chamber communicating with safety valves - one for suction and one for sending - and they may be aligned, kept together by tie-rods in higher or lower number, thus allowing differentiated flows and consequently differentiated powers.
Said pistons (7) have a large diameter and a short run, and their sealing is determined by elastomeric, flexible membranes (8) resting on bevellings which assure the functioning thereof, even under high pressures.
Also said valves (17, 20) of the pump are formed with elastomeric, flexible membranes onto thin slits, which are efficient also under high pressures.
CA002201987A 1996-11-25 1997-04-07 A device with coaxial, opposite, modular pistons with double eccentric cams or similar, for floated pumps Expired - Fee Related CA2201987C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96RM000807A IT1289219B1 (en) 1996-11-25 1996-11-25 Floated pumps device
ITRM96A000807 1996-11-25

Publications (2)

Publication Number Publication Date
CA2201987A1 true CA2201987A1 (en) 1998-05-25
CA2201987C CA2201987C (en) 2000-12-12

Family

ID=11404553

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002201987A Expired - Fee Related CA2201987C (en) 1996-11-25 1997-04-07 A device with coaxial, opposite, modular pistons with double eccentric cams or similar, for floated pumps

Country Status (3)

Country Link
BR (1) BR9700436A (en)
CA (1) CA2201987C (en)
IT (1) IT1289219B1 (en)

Also Published As

Publication number Publication date
ITRM960807A1 (en) 1998-05-25
CA2201987C (en) 2000-12-12
ITRM960807A0 (en) 1996-11-25
IT1289219B1 (en) 1998-09-29
BR9700436A (en) 1998-10-27

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Legal Events

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