Patent · US Active

Method and device for determining one or more rotational speeds of a turbocharging device, in particular for an internal combustion engine

US8504321B2 · kind B2 · utility

6Cited by

2References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Juergen Seidel · Schorndorf, DE
Alex Grossmann · Gernsbach, DE
Bernhard Opitz · Leonberg, DE
Dirk Hofmann · Regensburg, DE
Jochen Laubender · Ingolstadt, DE
Uwe Kassner · Heubach, DE
Dirk Eichel · Velbert, DE
Klaus Lerchenmueller · Rettenberg, DE
Juergen Wendt · Stuttgart, DE

Key dates

Filing date	May 18, 2010
Grant date	Aug 6, 2013
Priority date	—
Expiry date	Jul 22, 2031

Classification

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

Abstract

A method is described for determining information about a rotational speed of a compressor, in particular a turbocharger, by providing a measuring signal, in particular a microwave measuring signal, which is directed at a compressor impeller of the compressor, so that the measuring signal is reflected on revolving blades of the compressor impeller, detecting the measuring signal reflected by one or more blades, and determining the information about the rotational speed as a function of the reflected measuring signal.

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