Patent · US Expired

Method of heating the intake air

US6138645A · kind A · utility

8Cited by

5References

7Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Peter Joppig · Bad Marienberg, DE
Friedrich Schmid · Bad Marienberg, DE
Wolfram Schmid · Eislingen/Fils, DE

Key dates

Filing date	Nov 23, 1999
Grant date	Oct 31, 2000
Priority date	—
Expiry date	Nov 23, 2019

Classification

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

Abstract

In the method, the intake air for an internal combustion engine is heated both during the starting and/or warm-running phases by at least one electrically heatable heating element arranged upstream of the air inlet to the internal combustion engine and wherein the heating period for the pre-start is selected on the basis of the temperature of the cooling water of the internal combustion engine and the temperature of the unheated air taken in by the internal combustion engine, and the heating period for the post-start is selected independently of the pre-start heating time and selected solely on the basis of the cooling-water temperature.

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