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:
May. 14, 1985
Filed:
Apr. 08, 1982
Constantino Vinciguerra, Florence, IT;
Nuovo Pignone S.p.A., Florence, IT;
Abstract
A gas turbine, in which the rotor (9) of the power stage (5) is supported by a hollow shaft (10) in a cantilever fashion. The hollow shaft (10) has a pair of forged hollow frustoconical ends (11, 12) made of case-hardened and milled steel supported by bearings (19, 20, 20') and connected together by a hollow central tube (13). A stud (15) extends through and from the hollow shaft (10) and has threaded ends (15', 15'). The threaded end (15') releasably secures one end of the hollow shaft (20) into a correspondingly threaded portion (16) of the rotor (9) and the threaded end (15') is threaded into a nut (17) which cooperates with the other end of the hollow shaft (10) to releasably tighten the one end of the hollow shaft (10) to the rotor (9) and place the stud (15) under tension. The turbine also has a 3-cam system (26) which can be inserted into a circumferential groove (25) of the rotor (9) to centrally support the rotor (9) as the stud (15) is released, and gear means (22, 23, 24) for taking the drive from the power shaft (10) without increasing the bulk of the assembly.