Patent · US Expired

Control system for the engagement and disengagement of an exhaust gas turbocharger

US4616480A · kind A · utility

7Cited by

2References

11Claims

0Family size

Assignee

MTU Motoren-und Turbinen-Union Friedrichshafen GmbH · DE

Inventors

Herbert Deutschmann · Friedrichshafen, DE
Gerd-Michael Wolters · Markdorf, DE

Key dates

Filing date	Aug 7, 1984
Grant date	Oct 14, 1986
Priority date	—
Expiry date	Aug 7, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/2703
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A control for the engagement and disengagement of an exhaust gas turbocharger in which the charging air pressure of the internal combustion engine is used as control magnitude for the engagement and disengagement. Unfortunately, this charging air pressure exhibits oscillations with large amplitudes after each engagement and disengagement which could trigger faulty shifting operations in the control. To alleviate this problem, the control line (44) between the charging-air line and the control slide valve members (40, 41) is always closed off when these oscillations occur and their negative effects on the control are thereby prevented.

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