Title:
失活用装置を備えた真空ポンプ
Document Type and Number:
Japanese Patent JP2010512479
Kind Code:
A
Abstract:
A vacuum pump has inside the pumping chamber valves intended to control the operation by opening and closing during the suction and delivery cycle of the pump. The valves or parts connected thereto are formed at least in part by a ferromagnetic material. A magnetic inductor is applied outside a wall, formed by a non ferromagnetic material, of the pumping chamber of the pump, and inside the pumping chamber are installed conducting elements of ferromagnetic material, for conducting magnetic flow produced, by the inductor, up to polar points close to the positions taken in the conditions of inactivity by the valves, so as to magnetically attract the valves (10,20) in an inactivity position when the inductor is operated, and thus stop the pneumatic operation of the pump without stopping its motion which then becomes idle.
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Inventors:
Cadedu, Leonardo
Application Number:
JP2009539614A
Publication Date:
April 22, 2010
Filing Date:
September 11, 2007
Export Citation:
Assignee:
Bhitt S.P.A.
International Classes:
F04C28/06; F04C25/02; F04C28/24; F04C29/12
Attorney, Agent or Firm:
Igarashi Kazutoshi