Patent ID: 9541466
Date: 2017-01-10
CPC Classifications: G01M

Claim:
1. A leak test apparatus that tests for a leak in a workpiece by sealing an open portion formed on one side surface of the workpiece, comprising: a plate; a seal that moves relative to the plate and is supported by the plate; a driving portion that supports the plate and moves the plate; and a pressure chamber that is surrounded by the plate and the seal, wherein the seal is formed in a shape that enables the pressure chamber to be communicated with an outside of the seal; the seal is formed in a shape that enables the open portion to be communicated with the pressure chamber; the pressure chamber is configured such that test fluid from the workpiece is introduced into the pressure chamber via the seal; and the seal is pushed by a pressure of the test fluid from the pressure chamber, and seals the open portion, and the leak test apparatus thereby is configured to detect a leakage amount of the workpiece after the pressure of the test fluid pushes the seal.