The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2000
Filed:
Jun. 04, 1998
Benoit Barthod, Naves-Parmelan, FR;
Jean-Pierre Chicherie, deceased, late of Annecy-le-Vieux, FR;
Patrick Philippe, Annecy, FR;
Alcatel, Paris, FR;
Abstract
A scroll type machine including a fixed disk (5) comprising a spiral working wall (6) and a mobile disk (7) equally comprising a spiral working wall (8) cooperating with that of the fixed disk, means for driving circular translation movement of the mobile disk, a sealing bellows (15) joined at one end to a member (14) fixed with respect to the circular translation movement of the mobile disk (7) and at its other end to a fixed part (1C) of the machine, said bellows (15) separating the fluid circuit from the mechanical parts driving the mobile disk, characterized in that the fixed disk (5) is joined on the side opposite the mobile disk (7) to a fixed central shaft (10) including a discharge passage (11), said central shaft being surrounded by said bellows (15), the space (16) between said bellows and said fixed central shaft constituting a suction passage, in that a hollow main rotary shaft (19) surrounds said bellows (15) and is carried by at least one bearing (23, 24-32) in a fixed frame (1), one end of said main shaft (19) including an eccentric circular bore (18) cooperating with a drive member (14) joined to the mobile disk (7), said drive means including an electric motor rotor (25) joined to said main rotary shaft (19) and surrounding it and a fixed stator (26) surrounding said rotor.