Patent · US Expired

Tank-venting system for a motor vehicle and method for checking the operability thereof

US5193512A · kind A · utility

88Cited by

12References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ulrich Steinbrenner · Kohlhof, DE
Helmut Denz · Stuttgart, DE
Ernst Wild · Oberriexingen, DE
Wolfgang Wagner · Preetz, DE

Key dates

Filing date	Oct 8, 1991
Grant date	Mar 16, 1993
Priority date	—
Expiry date	Oct 8, 2011

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M25/0818
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A tank-venting system has an adsorption filter (AF) with a venting line (BL) which can be shut off by means of a controllable shut-off valve (AV). The shut-off venting valve makes it possible to set underpressures and overpressures in the system in a concerted manner in order to check its operability. As a result, particularly reliable information relating to the operability can be obtained.

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