Patent · US Expired

System for controlling the charge air pressure in a turbo-charged combustion engine

US4459808A · kind A · utility

15Cited by

4References

7Claims

0Family size

Assignee

AB Volvo · SE

Inventors

Jan E. Rydquist · Lindome, SE
Lars Sandberg · Uppsala, SE
Ralf Wallin · Lindome, SE

Key dates

Filing date	Feb 16, 1982
Grant date	Jul 17, 1984
Priority date	—
Expiry date	Feb 16, 2002

Classification

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

Abstract

A system for achieving temporary increase in performance in a turbo-charged combustion engine comprises a microprocessor in which there are stored a value of the maximum permissible charge pressure at constant load and a higher value of the maximum permissible charge pressure at increasing load. The processor senses the charge pressure and is connected to means which sense the rate of opening of the throttle. At a certain rate of opening, the processor permits an increase in the charge pressure to the higher pressure and thereafter effects timed reduction of the charge pressure to the maximum permissible pressure at constant load.

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