Title:
AIRTIGHTNESS EVALUATION DEVICE, AIRTIGHTNESS ASSESSMENT METHOD, AND REFRIGERATION CYCLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/208681
Kind Code:
A1
Abstract:
An airtightness evaluation device (100) evaluates airtightness in a refrigeration cycle system. A dividing part (296) divides a flow path constituting a vapor-compression-type refrigeration cycle by means of a valve to form a plurality of flow path spaces. A differential pressure measurement part (297) measures the differential pressure of two of the plurality of flow path spaces formed by the dividing part (296). An evaluation part (299) evaluates the airtightness of the two flow path spaces by means of the differential pressure measured by the differential pressure measurement part (297).
Inventors:
KOYANO TAKEHIRO (JP)
ICHIKAWA NAOHIRO (JP)
TANIGUCHI KATSUYA (JP)
ICHIKAWA NAOHIRO (JP)
TANIGUCHI KATSUYA (JP)
Application Number:
PCT/JP2019/015316
Publication Date:
October 15, 2020
Filing Date:
April 08, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
International Classes:
G01M3/26; F25B49/02
Foreign References:
| JP2005195249A | 2005-07-21 | |||
| JP2005257340A | 2005-09-22 | |||
| JPS55152496U | 1980-11-04 | |||
| JP2001194036A | 2001-07-17 | |||
| JPH0552700A | 1993-03-02 | |||
| JP2001027576A | 2001-01-30 | |||
| JP2005098598A | 2005-04-14 | |||
| JP2018077187A | 2018-05-17 |
Attorney, Agent or Firm:
MIZOI INTERNATIONAL PATENT FIRM (JP)
Download PDF:
Previous Patent: SURFACE SHAPE DETECTION DEVICE AND DETECTION METHOD
Next Patent: ANTENNA DEVICE AND COMMUNICATION APPARATUS
Next Patent: ANTENNA DEVICE AND COMMUNICATION APPARATUS