Foseco International Limited

Honda Giken Kogyo Kabushiki Kaisha

Kazuhiro Nakano

Sueli Pereira

Friedhelm Demey

Antonio Cassara

Mario Arruda

Raphael Neto

Fabio De Oliveira

Hans Riethmann

Renate Jahre

Tetsuro Hamada

Koji Kuroda

Yoshikazu Konishi

Kouji Kuroda

Yosikazu Konishi

Robert Paul Day

Hideaki Fukui

A method for the production of closed edge filters suitable for filtering molten metal and filters made by such a method. The method comprises: providing a reticulated foam substrate having at least one first surface for forming a side face of the filter and two opposed second surfaces for forming the through-flow faces of the filter; applying a liquid comprising an organic coating component to the first surface; solidifying the organic coating component to form a filter precursor having a volatilizable coating on the first surface; impregnating the filter precursor with a slurry comprising particles of a refractory material, a binder and a liquid carrier; and drying and firing the impregnated filter precursor to form the filter having a closed edge.

Method for the production of a refractory filter

Method for the production of a closed edge refractory foam filter, by providing a reticulated foam substrate having at least one first surface for forming a side face of the filter and two opposed second surfaces for forming the through-flow faces of the filter, applying a liquid including an organic coating component to the first surface, solidifying the organic coating component to form a filter precursor having a continuous volatilizable coating on the first surface, and impregnating the filter precursor with a slurry containing particles of a refractory material, a binder and a liquid carrier. The impregnated filter precursor is dried and fired to form the filter having a closed edge.

An electromagnetic clutch having a solenoid coil ( ), a coil housing ( ) disposed surrounding the solenoid coil ( ), an armature plate ( ) disposed facing the side of the coil housing, and a wet-type multi-plate clutch mechanism, the armature plate being linked to the clutch housing ( ). The current flowing to the solenoid coil ( ) is controlled so as to control the clamping of the armature plate ( ) to the coil housing ( ), and the clamping force acting on the armature plate is used made to act on the clutch mechanism via a ball cam mechanism ( ). A first rotational backlash amount BLm occurring between the rotation input member and the rotation output member in a rotation transmission system in which the clutch mechanism is interposed in an engaged state, and a second rotational backlash amount BLp occurring between the rotation input member and the rotation output member in a rotation transmission system in which the cam mechanism is interposed in a state in which the cam mechanism is fixed and the armature plate is clamped to the coil housing, are set such that BLm>BLp.

Power transmission device having electromagnetic clutch

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Toyokawa, Japan

Kazuhiro Nakano