Title:
LEAK TEST METHOD AND LEAK TEST APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/061130
Kind Code:
A3
Abstract:
A leak test method includes: reducing first pressure in an inspection space in a work and second pressure in a space in a master chamber; humidifying the inspection space in the work; and detecting a change in differential pressure between the inspection space in the work and the space in the master chamber, while the inspection space in the work is in a water- vapor saturated state. Also, in this leak test method, a leak in the inspection space in the work is detected from the change in the differential pressure.
More Like This:
| WO/1989/003521 | CONTAINER LEAK DETECTOR |
| JPS5920829 | METHOD FOR DETECTING LEAKAGE OF HEAT TRANSFER PIPE |
Inventors:
YAMAGUCHI TETSUYA (JP)
Application Number:
PCT/IB2012/002116
Publication Date:
September 12, 2013
Filing Date:
October 22, 2012
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
YAMAGUCHI TETSUYA (JP)
YAMAGUCHI TETSUYA (JP)
International Classes:
G01M3/32; G01M3/02; G01M3/34
Foreign References:
| JPS60111249U | 1985-07-27 | |||
| JP2003065885A | 2003-03-05 |
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