Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Reexamination Certificate
2008-03-25
2008-03-25
Miller, Carl S. (Department: 3747)
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
C123S494000, C073S118040
Reexamination Certificate
active
10564460
ABSTRACT:
A device for determining the mass flow via a tank venting valve for an internal combustion engine including an intake manifold and a throttle valve, the intake manifold being connected to the tank venting valve and an exhaust gas recirculation system, one measuring transducer each being assigned to the throttle valve and the tank venting valve, and a sensor for the mass flow via the exhaust gas recirculation system being assigned to the exhaust gas recirculation system. In order to be able to determine the mass flow via the tank venting valve with improved accuracy it is provided in such a device that a mass flow normalizer is assigned to the measuring transducers and to the sensor for the mass flow via the exhaust gas recirculation system; the mass flow normalizer picks up, sums, and normalizes the signals of the measuring transducers and the sensor assigned to the mass flows via the throttle valve, via the tank venting valve, and via the exhaust gas recirculation system; a convertor is assigned to the mass flow normalizer; the convertor calculates a virtual throttle valve angle from which an allocator determines the mass flow via the tank venting valve.
REFERENCES:
patent: 5072712 (1991-12-01), Steinbrenner et al.
patent: 5373822 (1994-12-01), Thompson
patent: 5706782 (1998-01-01), Kurihara
patent: 6116210 (2000-09-01), Oder et al.
patent: 6622691 (2003-09-01), Bagnasco et al.
patent: 6658364 (2003-12-01), Olin
patent: 43 20 621 (1995-01-01), None
patent: 197 40 970 (1998-10-01), None
patent: 1 106 813 (2001-06-01), None
patent: 10-30469 (1989-01-01), None
patent: 11-44240 (1989-06-01), None
patent: 05 141 299 (1993-06-01), None
patent: 2000-38960 (2000-02-01), None
Esteghlal Gholamabas
Lederer Dieter
Kenyon & Kenyon LLP
Miller Carl S.
Robert & Bosch GmbH
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