Mark IV Systemes Moteurs (societe Anonyme)

Mark IV Systems Moteurs, Inc.

Mark IV Systemes Moteurs (soci&eacute;t&eacute; Anonyme)

Anthony Alves

Richard Komurian

Sergio Lolli

Jean-Paul Vaudry

A control device for the throughput in a conduit portion a is provided. The device comprises a valve or a flap composed of a body mounted on a rotary support shaft and being displaceable between a position of maximum closure and a position of minimum closure by pivoting about said shaft. The device is characterised in that at least one shape or structure (4,4') which is at least partially obstructive, by projecting into the internal passage of said conduit portion () and locally reducing the passage section thereof, is present in the region of the internal face of the wall of said conduit portion. The device includes at least one cooperating surface zone () which intimately mates with the shape of at least one part of the imaginary surface swept by at least one segment of the external peripheral edge () of the body () of the valve or flap when pivoted.

Control device for the throughput in a conduit portion or similar

A pump/valve assembly forming part of a circuit for circulating a liquid fluid has a pump and a proportional-control valve unit () in series with the pump. The valve unit () has a valve (), an electrical actuator () and a position sensor () which are fixed to a movable member (') sealing the valve () for displacement therewith, and control means () controlling the actuator () according to the position of the movable member (&#x2032;) indicated by the sensor () and a reference signal. The valve unit () is subjected to a procedure indexing the position of the movable member (&#x2032;) and setting parameters for the control means () at the beginning of each new operating cycle of the assembly, and the pump () is rotated at a constant speed selected from a limited number of predetermined speeds at least during part of each operating cycle.

Pump/valve assembly and a cooling circuit containing such an assembly

Cooling units for motor vehicles

The present invention relates to a flap valve device and a regulation assembly comprising such devices. A pivoting flap valve device has a flap body substantially in the form of a disc mounted on a support and control axle, for the regulation of the circulation of a fluid, particularly a liquid, between an upstream conduit portion and a downstream conduit portion. The flap body ( ) is mounted centered on the axle ( ), in that the two conduit portions ( and ) are axially offset relative to each other and in that the internal surfaces ( ) of the opposed offsets resulting from the axial offset or non-alignment of the portions ( and ) constitute bearing surfaces ( ) for two complementary seat portions ( ) for the flap body ( ), located on opposite sides of the axle ( ) carrying the flap body ( ).

Growing community of inventors

Holtzwihr, France

Anthony Alves