Patent · US Active

Method and device for detecting leaks in the intake tract of an internal combustion engine

US8731850B2 · kind B2 · utility

1Cited by

3References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Michael Ungermann · Gelnhausen, DE
Andreas Buse · Esslingen am Neckar, DE
Dieter Schwarzmann · Heilbronn, DE

Key dates

Filing date	May 12, 2011
Grant date	May 20, 2014
Priority date	—
Expiry date	Jun 9, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for detecting a leak in an intake tract of an internal combustion engine involves operating the engine at two operating points and comparing a deviation of measured mass flows from expected mass flows at the first and at the second operating points.

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