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Patent Searching and Data


Title:
METHOD FOR PROCESSING SCREW ROTOR, AND SCREW ROTOR LEAD CORRECTION CALCULATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/092773
Kind Code:
A1
Abstract:
This screw rotor lead correction calculating device is provided with: an initial data input unit which receives an error, as a distance of each position, in an axial direction, of a rotor groove portion of the screw rotor relative to a reference lead; and a processing machine input correction amount/position output unit which, on the basis of the error, as the distance input into the initial data input unit, calculates and outputs a lead correction amount relative to the reference lead, and a lead correction start position, which is the axial direction position at which the lead correction is to start. It is thus possible to obtain correction data for obtaining a screw rotor having a highly accurate lead, from lead errors, relative to the reference lead, of the screw rotor obtained by grinding and finishing the screw rotor starting material.

Inventors:
YAMANAKA Toshio (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
UTSUMI Koji (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
AOKI Hisashi (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
YAMADA Yoshiyuki (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
KAYANUMA Hidetaro (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
Application Number:
JP2017/040050
Publication Date:
May 16, 2019
Filing Date:
November 07, 2017
Export Citation:
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Assignee:
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (16-1, Kaigan 1-chome Minato-k, Tokyo 22, 〒1050022, JP)
International Classes:
F04C18/16; F04C29/00
Foreign References:
JP2016014369A2016-01-28
JPH06159271A1994-06-07
JP2007262936A2007-10-11
JP2016014369A2016-01-28
Attorney, Agent or Firm:
POLAIRE I.P.C. (13-11, Nihonbashikayabacho 2-chome Chuo-k, Tokyo 25, 〒1030025, JP)
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