Method and system for controlling a flow of vapor in an evaporat

Details Method and system for controlling a flow of vapor in an evaporat Method and system for controlling a flow of vapor in an evaporat

1995-10-23

1997-09-30

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123357, F02M 3704

Patent

active

056717180

ABSTRACT:
A method and system for determining a level of vapor generated by an evaporative system. The evaporative system is closed to atmosphere. An initial pressure in a fluid-filled tank is sensed and, after a predetermined amount of time, a second pressure in the tank is sensed. A pressure difference is determined based on the sensed initial pressure and the sensed second pressure. The level of vapor generated by the evaporative system is determined based on the pressure difference.

REFERENCES:
patent: 5261379 (1993-11-01), Lipinski et al.
patent: 5333589 (1994-08-01), Otsuka
patent: 5353771 (1994-10-01), Blumenstock
patent: 5355864 (1994-10-01), Kuroda
patent: 5398662 (1995-03-01), Igarashi
patent: 5463998 (1995-11-01), Denz
patent: 5501198 (1996-03-01), Koyama
patent: 5524595 (1996-06-01), Ito

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