Patent · US Expired

Method of controlling reciprocating four-stroke internal combustion engines

US4700684A · kind A · utility

107Cited by

11References

10Claims

0Family size

Assignee

FEV Forschungsgesellschaft fur Energietechnik und Verbrennungsmotoren mbH · DE

Inventors

Franz Pischinger · Aachen, DE
Peter Kreuter · Aachen, DE

Key dates

Filing date	Feb 3, 1984
Grant date	Oct 20, 1987
Priority date	—
Expiry date	Feb 3, 2004

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M26/01
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a method for unthrottled load control of an internal combustion engine by means of exhaust gas. The method requires entirely freely adjustable opening and closing times for the inlet and exhaust valves. Starting at full load with the minimum of exhaust gas in the cylinder the amount of exhaust gas in the cylinder is increased thereby reducing the available combustion chamber volume for receiving fresh mixture mass thereby reducing the load. The fresh mixture mass and the exhaust gas mass are controlled exclusively by coordinating the opening and closing times of the intake and exhaust valves.

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