Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1993-02-04
1994-01-11
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123520, F02M 3302
Patent
active
052771679
ABSTRACT:
A flow regulator for automotive vehicles of the type having a computer-controlled emission control system. The flow regulator has an electric vacuum regulator (EVR) valve that regulates the vacuum signal provided to a vacuum regulator valve in accordance with the current signal supplied to the EVR valve by the engine controller unit. The vacuum regulator valve includes a control chamber and a valve chamber that are separated by a movable diaphragm valve assembly. The preload on a biasing spring acting on the diaphragm valve assembly can be adjusted during calibration of the flow regulator for setting a first calibration point. An adjustable flow restrictor provided in the inlet portion of the vacuum regulator valve can be varied during calibration for setting a second calibration point. In operation, the flow regulator is operable to generate substantially linear output flow characteristic between the two calibration points as a function of the current signal in a manner that is independent of changes in manifold vacuum.
REFERENCES:
patent: 4522371 (1985-06-01), Fox et al.
patent: 4534375 (1985-08-01), Fox
patent: 4715396 (1987-12-01), Fox
patent: 4951637 (1990-08-01), Cook
patent: 4995369 (1991-02-01), Cook
patent: 5050568 (1991-09-01), Cook
patent: 5054455 (1991-10-01), Cook
patent: 5069188 (1991-12-01), Cook
patent: 5083546 (1992-01-01), Detweiler
patent: 5113837 (1992-05-01), Faull
patent: 5115785 (1992-05-01), Cook
patent: 5183022 (1993-02-01), Cook
Beneker Gerrit V.
DeLand Daniel L.
Detweiler Charles A.
Cross E. Rollins
Lectron Products, Inc.
Moulis Thomas N.
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