F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
123/12
F02P 5/10 (2006.01)
Patent
CA 1090663
ABSTRACT OF THE DISCLOSURE A pneumatic control apparatus for an engine exhaust emission control device including a passage 101 for applying a negative intake passage pressure to a chamber of a differential pressure responsive unit 10 via an atmospheric venting vacuum control valve 30. The negative pressure chamber 37 of the latter is controlled by an orifice unit 40 which supplies negative pressures from spaced positions in the intake passage proximate the throttle valve 2 via flow restrictors 43, 44, whereby suitable response delays are provided. Alternatively, one of the restrictor inlets may be vented to atmosphere by a further vacuum control valve 50 or 60 responsive to a negative intake passage pressure or directly controlled by a throttle valve coupling, and a further restrictor and check valve connected in parallel may also be employed to implement an additional response delay to pressure increases and a rapid response to pressure decreases. The proper selection of the restrictor flow resistances and the biasing spring strengths in the various control valves enables a wide range of operational control.
279753
George H. Riches And Associates
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
LandOfFree
Pneumatic control apparatus for internal combustion engines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatic control apparatus for internal combustion engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic control apparatus for internal combustion engines will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-741491