Internal-combustion engines – Intake manifold – Manifold material or composition
Reexamination Certificate
2008-11-12
2011-11-08
Kwon, John T. (Department: 3747)
Internal-combustion engines
Intake manifold
Manifold material or composition
C123S184510, C251S129150
Reexamination Certificate
active
08051823
ABSTRACT:
A combined actuator provided with: a mobile element; a driver for displacing the mobile element; and a rheological control brake, which is mechanically coupled to the mobile element to adjust the displacement of the mobile element; the rheological control brake has: two contiguous adjustment chambers; a rheological fluid contained in the two adjustment chambers; a sliding piston, which tightly separates the two adjustment chambers and is mechanically connected to the mobile element; at least one external connection pipe, which reciprocally connects the two adjustment chambers; and a driving device which is coupled to the external connection pipe so as to apply a variable electromagnetic field to the rheological fluid contained in the external connection pipe for varying the viscosity of the rheological fluid between a minimum value and a maximum value.
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European Search Report dated Apr. 25, 2008, issued in corresponding priority European Application No. 07425722.1.
Baldassari Andrea
Bellato Nazario
Dragoni Eugenio
Fornara Stefano
Lancioni Federico
Hoang Johnny H
Kwon John T.
Magneti Marelli Powertrain S.p.A.
Ostrolenk Faber LLP
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