Patent · US Expired

Method for the load-controlling operation of electromagnetically activated intake valves of an internal combustion engine

US6453856B1 · kind B1 · utility

6Cited by

3References

2Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hans Jörg Lehmann · Regensburg, DE
Claus Rose · Neutraubling, DE
Thomas Vogt · Regensburg, DE

Key dates

Filing date	Dec 10, 2001
Grant date	Sep 24, 2002
Priority date	—
Expiry date	Dec 10, 2021

Classification

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

Abstract

In order to be able to implement low loads at high rotational speeds in an internal combustion engine with electromagnetically activated intake valves, one intake valve of a cylinder is operated in the free flying phase, i.e. not held in the open position, and the other intake valve of the cylinder is correspondingly opened for a longer time. Alternatively, the first valve can also be held closed.

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