Patent · US Active

Dosing pump unit

US9382904B2 · kind B2 · utility

0Cited by

3References

21Claims

0Family size

Assignee

GRUNDFOS MANAGEMENT A/S · DK

Inventors

Sergei Gerz · Rheinstetten, DE
Markus Simon · Buckenhof, DE

Key dates

Filing date	Feb 16, 2011
Grant date	Jul 5, 2016
Priority date	—
Expiry date	Jun 8, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B2203/0209
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A metering pump unit with a metering chamber (6), a positive-displacement body that adjoins the latter and can be moved by a positive-displacement drive (22), as well as a controller (30) for actuating the positive-displacement drive (22). The controller (30) is designed to actuate the positive-displacement drive (22) at least in a specific operating state in such a way that a stroke, in particular a pressure stroke, of the positive-displacement body is started at a first, lower stroke rate, and the stroke rate is increased to a second, elevated stroke rate as the pressure stroke (36) continues. A method is provided for controlling the positive-displacement drive (22) of such a metering pump unit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.