Patent · US Expired

Air intake system for an internal combustion engine

US6564768B2 · kind B2 · utility

30Cited by

1References

10Claims

0Family size

Assignee

Filterwerk Mann & Hummel GmbH · DE

Inventors

Sascha Bauer · Auenwald, DE
Thomas Haubold · Erbach, DE
Michael Kolmeder · Dingolfing, DE

Key dates

Filing date	Oct 26, 2001
Grant date	May 20, 2003
Priority date	—
Expiry date	Oct 26, 2021

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M35/112
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An intake system for an internal combustion engine of a motor vehicle, which includes a first air intake 10, which is arranged at a point in the motor vehicle that is advantageous for air intake, and a second air intake 11, which is arranged at a point that is protected from road spray and splashes of water. The two air intakes 10, 11 end in a common line 12 that communicates with the internal combustion engine. In the first air intake 10, a moisture sensor 14 is arranged. When water enters into the first air intake 10, this moisture sensor emits a signal that actuates a solenoid 23 to move a pivotable valve 13. In a first switching position pivotable valve 13 closes the second air intake 11 so that no air reaches line 12 from the second air intake 11. In a second position (shown in broken lines) pivotable valve 13 closes the first air intake 10 so that air reaches line 12 only through the second air intake 11.

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