Patent · US Active

Coolant system for machine tools

US9488421B2 · kind B2 · utility

0Cited by

6References

3Claims

0Family size

Assignee

Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KG · DE

Inventors

Dirk Wenderott · Castrop-Rauxel, DE
Andreas Kandzior · Neuenrade, DE
Jens Ulrich · Langewiesen, DE

Key dates

Filing date	Aug 21, 2012
Grant date	Nov 8, 2016
Priority date	—
Expiry date	Aug 21, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG05D16/2066
WIPO fieldControl
WIPO sectorInstruments

Abstract

A coolant system for machine tools, includes a pump (12) for the coolant, at least one consumer (10), a pressure sensor (24) for detecting an actual pressure (Pi) in the coolant system, a feedback control device (22) acting upon the pump (12) for regulating the pressure in the coolant system to a target pressure (Ps), and a limiting valve (26) for limiting the pressure of the coolant supplied to the consumer, wherein in that the opening pressure (Plim) of the limiting valve (26) is variable and the feedback control device (22) is adapted to adjust the opening pressure in accordance with the target pressure (Ps) such that it is always a certain amount larger than the target pressure.

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