F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 25/08 (2006.01) B60K 15/00 (2006.01) F02M 21/02 (2006.01) F02M 37/20 (2006.01)
Patent
CA 2058819
Apparatus for the intermittent storage and controlled feeding of volatile fuel components present in an unfilled space of a fuel tank into the intake manifold of an internal combustion engine, having a vent conduit which extends between the unfilled space and the intake manifold, includes an absorption element and is closable by a servo-valve positioned in series after the absorption element. The vent conduit is further provided with a first sensor which is positioned in series before the absorption element and detects a gas flow through the vent conduit. A vacuum actuated valve which is positioned in series before the servo-valve is provided with a second sensor which detects its actuation. The first and second sensors are connected for signal transmission with a diagnosis block which compares the two signals of the sensors for error diagnosis with a servo-valve control signal. With the apparatus, a controlled feeding of the fuel volatiles is achievable without using complex sensory systems in addition to the sensors already used in the control of the operating conditions of the internal combustion engine.
Buchalla Harald
Burger Stefan
Franz Rainer
Heinemann Joachim
Tinz Reinhard
Borden Ladner Gervais Llp
Buchalla Harald
Burger Stefan
Franz Rainer
Freudenberg Carl
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