Patent · US Expired

Ambient air-pulsed valve control

US6318085A · kind A · utility

23Cited by

6References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Oskar Torno · Schwieberdingen, DE
Carsten Kluth · Stuttgart, DE
Werner Haming · Neudenau, DE
Iwan Surjadi · Leinfelden, DE
Steffen Franke · Schwieberdingen, DE
Michael Bauerle · Markgröningen, DE

Key dates

Filing date	Jan 24, 2000
Grant date	Nov 20, 2001
Priority date	—
Expiry date	Jan 24, 2020

Classification

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

Abstract

In the apparatus for controlling a coasting air recirculation valve of the turbocharger of an internal combustion engine, the coasting air recirculation valve is arranged in the coasting air recirculation line bypassing a compressor in the intake duct, and the coasting air recirculation valve is controllable by way of the intake duct pressure on the downstream side of the throttle valve. In order to ensure defined opening and closing of the coasting air recirculation valve, an additional control pressure, with which the coasting air recirculation valve can be opened independently of the intake duct pressure, can be delivered to the coasting air recirculation valve.

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