Emission control valve with integral filter

Details Emission control valve with integral filter Emission control valve with integral filter

1998-06-30

2000-05-09

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

137549, F02M 3704

Patent

active

060589132

ABSTRACT:
An emission control valve assembly has an internal main flow passage through a valve body between a first port and a second port, an electric actuator, and a valve operated by an armature of the actuator to selectively open and close the passage. A force-balancing mechanism applies to the valve a force that opposes force created by pressure differential between the first and second ports. An annular filter cartridge is disposed within the valve body to trap particulate material in flow entering through the first port so that the trapped material does not reach the valve and its seat.

REFERENCES:
patent: 4543983 (1985-10-01), Pauliukonis
patent: 4796854 (1989-01-01), Ewing
patent: 5150879 (1992-09-01), Mullally
patent: 5280775 (1994-01-01), Tanamura et al.
patent: 5501198 (1996-03-01), Koyama
patent: 5613477 (1997-03-01), Maeda
patent: 5635630 (1997-06-01), Dawson et al.
patent: 5906189 (1999-05-01), Mukai et al.
patent: 5941218 (1999-08-01), Deland et al.

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