Patent · US Active

Method of operating a compressor near the compressor pumping limit and compressor

US7428815B2 · kind B2 · utility

0Cited by

6References

9Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Peter Fledersbacher · Stuttgart, DE
Gernot Hertweck · Fellbach, DE
Steffen Schiedt · Waiblingen, DE
Guido Vent · Speyer, DE
Jurgen Willand · Stuttgart, DE

Key dates

Filing date	Apr 20, 2005
Grant date	Sep 30, 2008
Priority date	—
Expiry date	Nov 19, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a method of operating a compressor near the compressor pumping limit wherein the compressor includes a control arrangement for adjusting the momentary operating state of the compressor, the flow velocity of a mass flow through the compressor in the boundary layer along the wall of the flow passage is determined for detecting operation of the compressor close to the pumping limit from a reversal of the direction of the mass flow vector in the boundary layer and the control arrangement is actuated so as to prevent the compressor from transgressing the pumping limit.

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