EP 1820966 A2 20070822 - Dosage Pump
Title (en)
Dosage Pump
Title (de)
Dosierpumpe
Title (fr)
Pompe de dosage
Publication
Application
Priority
IT PD20060026 U 20060216
Abstract (en)
A dosage pump, of the type comprising a hollow body (11) which is adapted to be interposed between portions of piping of a hydraulic circuit and is provided internally with a vaned rotary element (12), which rotates due to the flowing fluid and is associated with means (13) for speed reduction and transmission and with means (14) for converting rotary motion into reciprocating rectilinear motion, which in turn are connected to means (15) for drawing and pumping the liquid to be dosed; these means for drawing and pumping are provided, inside a container (16) for the liquid, which is fixed to the hollow body (11), by an injection stem (17), which is moved by the motion conversion means (14) so that it enters and exits, with its end (18), a dosage chamber (19) which is closed by a flow control element (20) which is pushed by elastic means (21); the chamber (19) is connected to the inside of the container (16) on the side of the injection stem (17) and to a channel (22) for connection to a pipe (23) for the rise of the dosed liquid toward the hollow body (11) on the side of the flow control element (20). The means (14) for converting rotary motion into reciprocating rectilinear motion are constituted by a cam (28) which is keyed onto a shaft (29) which is turned by the means (13) for mechanical transmission and reduction of rotary motion, the cam (28) being inserted within a slot (30) formed on the head (31) of the injection stem (17), so as to transmit thrust to the stem (17) both downward and upward.
IPC 8 full level
F04B 13/00 (2006.01); F04B 17/00 (2006.01)
CPC (source: EP)
F04B 13/00 (2013.01); F04B 17/00 (2013.01)
Citation (applicant)
- GB 1395206 A 19750521 - LANG APPARATEBAU GMBH
- US 4321938 A 19820330 - SILLER RUDI
- FR 2429463 A1 19800118 - POLLARD JEAN AUGUSTIN [FR]
Citation (examination)
- US 1522281 A 19250106 - WEINMAN WILLIAM N
- FR 2247111 A6 19750502 - GURTNER SA [FR]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1820966 A2 20070822; EP 1820966 A3 20090415; EP 1820966 A8 20091104; EP 1820966 A9 20091111; IT PD20060026 U1 20070817
DOCDB simple family (application)
EP 07102398 A 20070214; IT PD20060026 U 20060216