Measuring and testing – With fluid pressure – Motor part or auxiliary
Patent
1998-06-30
2000-01-04
Williams, Hezron
Measuring and testing
With fluid pressure
Motor part or auxiliary
731181, 73 40, 123520, F02M 3704
Patent
active
060097469
ABSTRACT:
A module for an on-board evaporative emission leak detection system that detects leakage from an evaporative emission space of an automotive vehicle fuel system. A pump disposed within interior space of the module has an inlet in communication with the interior space and an outlet that communicates through a flow passage by with the evaporative emission space. A vent valve within the interior space is selectively operable to a first state that vents the flow passage to the interior space of the module, thereby venting the evaporative emission space to atmosphere, and to a second state that does not vent the flow passage to the interior space. An electromechanical actuator within the interior space operates the pump and the vent valve by respective magnetically responsive levers. For absorbing impact of a lever with stops, an elastomeric part is disposed on an arm of the lever.
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Cook John E.
Perry Paul D.
Siemens Canada Ltd.
Wiggins J. David
Williams Hezron
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