Conductive foam vapor sensing

Details Conductive foam vapor sensing Conductive foam vapor sensing

1995-02-27

1996-10-01

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

F02M 3302

Patent

active

055603475

ABSTRACT:
An apparatus for use in diagnosing an evaporative emission canister collection and purge system. An EVAP system of a vehicle is diagnosed through the use of a mechanism wherein a change in conductivity occurs in response to a change in concentration of fuel vapor in the variably conductive mechanism. By sensing the change in conductivity, a diagnostic mechanism determines whether the vapor collection and purge systems are operating correctly.

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"Leak Edge Application Guide/Leak Edge Detection System" -Information of Specific Chemicals, One Plus Corp., 1955 Shermer Rd., Northbrook, IL -Form L9207-2.

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