Electropneumatic control valve

Details Electropneumatic control valve Electropneumatic control valve

1995-05-17

1996-06-11

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123458, 123463, 25112903, F02M 3302

Patent

active

055245935

ABSTRACT:
An electropneumatic control valve for regeneration of a fuel absorption element by supply of air to the absorption element includes a valve comprised of a valve seat member (5) and a valve sealing member (4). The valve seat member is displaceable under the action of a pneumatic control section (2B) while the valve sealing member (4) is displaceable under the control of an electromagnetic control section (2A). The operation of the valve members (4, 5), takes place independently of one another by the respective control sections. During strong suction pressures in connector (11), valve seat member (5) is lowered and during the opening stroke of the valve sealing member (4) a minimum opening is provided whereas during low suction pressure at connector (11) the valve seat member (5) is raised and during the opening stroke of the valve sealing member (4) a maximum valve opening is produced. The valve members are slidably and guidably supported in a fixed sleeve (6) provided with calibrated openings (15).

REFERENCES:
patent: 4366835 (1983-01-01), Akagi
patent: 4703737 (1987-11-01), Cook
patent: 4944276 (1990-07-01), House
patent: 4986246 (1991-01-01), Kessler de Vivie
patent: 5069188 (1991-12-01), Cook
patent: 5083546 (1992-01-01), Detweiler
patent: 5178116 (1993-01-01), Fehrendach
patent: 5277167 (1994-01-01), Delano
patent: 5383437 (1995-01-01), Cook

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