IT1238937B - Detergent liq. metering pump driven by synchronous motor - Google Patents

Detergent liq. metering pump driven by synchronous motor

Info

Publication number
IT1238937B
IT1238937B IT41600A IT4160090A IT1238937B IT 1238937 B IT1238937 B IT 1238937B IT 41600 A IT41600 A IT 41600A IT 4160090 A IT4160090 A IT 4160090A IT 1238937 B IT1238937 B IT 1238937B
Authority
IT
Italy
Prior art keywords
liq
synchronous motor
detergent
metering pump
pump driven
Prior art date
Application number
IT41600A
Other languages
Italian (it)
Other versions
IT9041600A0 (en
IT9041600A1 (en
Inventor
Elio Marioni
Original Assignee
Askoll Srl
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 Askoll Srl filed Critical Askoll Srl
Priority to IT41600A priority Critical patent/IT1238937B/en
Publication of IT9041600A0 publication Critical patent/IT9041600A0/en
Priority to EP19900121666 priority patent/EP0433649A1/en
Priority to US07/612,378 priority patent/US5088902A/en
Publication of IT9041600A1 publication Critical patent/IT9041600A1/en
Application granted granted Critical
Publication of IT1238937B publication Critical patent/IT1238937B/en

Links

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The stator (3) and rotor of a permanent-magnet synchronous motor are accommodated in separate chambers. The rotary movement is transmitted by worm gear (13, 18) and an eccentric crank system (21-23) to a plastic piston (25) sliding in a hollow cylinder (26) defining a variable-vol. chamber (27). The liq. is pumped through inlet and outlet ducts (33, 34) with mushroom-headed valves (35, 36) and helical springs (39, 40), at a constant rate during a controlled number of strokes.
IT41600A 1989-11-17 1990-05-14 Detergent liq. metering pump driven by synchronous motor IT1238937B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT41600A IT1238937B (en) 1990-05-14 1990-05-14 Detergent liq. metering pump driven by synchronous motor
EP19900121666 EP0433649A1 (en) 1989-11-17 1990-11-13 Fluid metering pump
US07/612,378 US5088902A (en) 1989-11-17 1990-11-14 Piston type metering pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT41600A IT1238937B (en) 1990-05-14 1990-05-14 Detergent liq. metering pump driven by synchronous motor

Publications (3)

Publication Number Publication Date
IT9041600A0 IT9041600A0 (en) 1990-05-14
IT9041600A1 IT9041600A1 (en) 1991-11-14
IT1238937B true IT1238937B (en) 1993-09-17

Family

ID=11251813

Family Applications (1)

Application Number Title Priority Date Filing Date
IT41600A IT1238937B (en) 1989-11-17 1990-05-14 Detergent liq. metering pump driven by synchronous motor

Country Status (1)

Country Link
IT (1) IT1238937B (en)

Also Published As

Publication number Publication date
IT9041600A0 (en) 1990-05-14
IT9041600A1 (en) 1991-11-14

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960529