Title:
SCREW ROTOR
Document Type and Number:
WIPO Patent Application WO/2016/031413
Kind Code:
A1
Abstract:
A rotor wherein, in a specific rotational phase, there is an overlap of three points, that is, a male backward-movement-side tooth tip point (B1), a female forward-movement-side tooth tip point (D2'), and the point of intersection (Q) between the surface of a casing (3) opposing a male rotor (10) and the surface of the casing opposing a female rotor (20). As the rotational phase advances therefrom, the male backward-movement tooth surface forms an epicycloid curve by means of the female forward-movement-side tooth tip point (D2'), and the female forward-movement tooth surface forms an epicycloid curve by means of the male backward-movement-side tooth tip point (B1).
Inventors:
HAYASHI MASAZUMI (JP)
Application Number:
PCT/JP2015/070232
Publication Date:
March 03, 2016
Filing Date:
July 15, 2015
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
F04C18/16
Foreign References:
| JPS60178989A | 1985-09-12 | |||
| JPS4935906A | 1974-04-03 | |||
| US2486770A | 1949-11-01 | |||
| JPS4938205A | 1974-04-09 | |||
| US20030170135A1 | 2003-09-11 | |||
| JPS5117011A | 1976-02-10 | |||
| JPS60153486A | 1985-08-12 | |||
| JP2012207660A | 2012-10-25 |
Attorney, Agent or Firm:
HOTTA MINORU (JP)
Minoru Hotta (JP)
Minoru Hotta (JP)
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