Patent · US Expired

Reciprocating pump for the pulsation-free delivery of a liquid

US4359312A · kind A · utility

44Cited by

13References

9Claims

0Family size

Assignee

Zumtobel KG · DE

Inventors

Herbert Funke · Krailling, DE
Hans-Jurgen Riggenmann · Munich, DE

Key dates

Filing date	Aug 15, 1978
Grant date	Nov 16, 1982
Priority date	—
Expiry date	Aug 15, 1998

Classification

Technology area (CPC G)Physics
CPC primaryG01N2030/326
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A piston pumping system is disclosed having a pair of piston pumps operated by plungers with roller follows which ride in rotary cam plate grooves. The grooves are arranged such that the delivery of each pump overlaps the suction of the other pump. Means are provided to sense any pulsations in pressure to change the cam speed during the precompression phase of operation and means are provided to sense delivery pressure and to adjust cam plate speed during the interval between the initial phase of delivery and the end of the precompression stroke.

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