EP 0963543 A1 19991215 - FLUID METERING DEVICE
Title (en)
FLUID METERING DEVICE
Title (de)
FLUIDMESSVORRICHTUNG
Title (fr)
DISPOSITIF DE MESURE FLUIDIQUE
Publication
Application
Priority
- GB 9800491 W 19980217
- GB 9703918 A 19970225
Abstract (en)
[origin: WO9838480A1] A metering device for pressurized fluid has a rotor containing an oscillating free piston operating a bore at right angles to the rotor axis. The piston is driven by the fluid to be metered. The rotor is retained within a stator having inlet and outlets ports. When the rotor is rotated, a first end of the bore becomes in fluid connection with the inlet port and the piston is operated upon by the pressurized fluid and moves within the bore in a first direction towards the outlet port. As the rotor is turned further, the second end of the bore becomes in fluid connection with the inlet port whilst the first end is made in fluid connection with the outlet port, and the piston reverses to move in a second direction, i.e., towards the outlet port to discharge the fluid which had previously moved the piston in a first direction. The rotor may be turned back and forth to dispense metered doses of the fluid, or may be rotated continuously or intermittently in the same direction to dispense metered doses of the fluid.
IPC 1-7
IPC 8 full level
G01F 11/22 (2006.01); A61M 15/00 (2006.01); G01F 11/02 (2006.01)
CPC (source: EP)
A61M 15/0065 (2013.01); G01F 11/024 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IE IT LI NL SE
DOCDB simple family (publication)
WO 9838480 A1 19980903; AU 6224698 A 19980918; EP 0963543 A1 19991215; GB 9703918 D0 19970416; JP 2001504234 A 20010327; ZA 981480 B 19981022
DOCDB simple family (application)
GB 9800491 W 19980217; AU 6224698 A 19980217; EP 98904304 A 19980217; GB 9703918 A 19970225; JP 53740898 A 19980217; ZA 981480 A 19980223