Measuring and testing – Simulating operating condition – Marine
Reexamination Certificate
2006-07-11
2006-07-11
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Simulating operating condition
Marine
C073S116070, C073S117020, C073S117020
Reexamination Certificate
active
07073376
ABSTRACT:
A method for testing the functionality of a tank system of a motor vehicle having an internal combustion engine, including a controllable tank venting valve connected to an intake manifold and at least one pressure source for testing the tightness of the tank venting system using overpressure or underpressure, the functionality of the tank venting valve being tested via its activation in an opening and/or closing manner during pressurizing the tank system using overpressure or underpressure and by registering and evaluating at least one operating variable of the pressure source. The tank system is pressurized with overpressure or underpressure and the at least one operating variable of the pressure source is registered and evaluated during operation of the engine.
REFERENCES:
patent: 6820467 (2004-11-01), Streib
patent: 6845652 (2005-01-01), Stegmann et al.
patent: 6889667 (2005-05-01), Fritz et al.
patent: 2005/0034513 (2005-02-01), Streib et al.
patent: 101 36 183 (2003-02-01), None
Hassdenteufel Armin
Lederle Karl-Bernhard
Mueller Andreas
Pfeil Michael
Kenyon & Kenyon LLP
Kirkland, III Freddie
Lefkowitz Edward
Robert & Bosch GmbH
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