公开(公告)号：US3561255A

公开(公告)日：1971-02-09

申请号：US3561255D

申请日：1969-02-14

Applicant: AJEM LAB INC

Inventor： KOSTIELNEY EDWARD N JR

IPC: G01M3/28 ,  G01M3/26

CPC classification number: G01M3/2876

Abstract: A LEAK TESTING DEVICE, COMMONLY EMPLOYED IN TESTING AUTOMOTIVE ENGINE COMPONENTS AND THE LIKE, WHICH PRESSURIZES THE PART TO BE TESTED AND A STANDARD CHAMBER, SEPARATES THE TWO, AND THEN MEASURES THE DIFFERENCE IN PRESSURE OVER A GIVEN PERIOD OF TIME BETWEEN THE PART AND THE STANDARD CHAMBER. THE IMPROVEMENT IN SUCH A DEVICE REDUCING THE TIME REQUIRED FOR TAKING A REPRODUCEABLE USEFUL READING BY INCORPORATING BAFFLES IN THE STANDARD CHAMBER WHICH RESTRICT THE FLOW OF TESTING FLUID THEREBY REDUCING OSCILLATION AND HASTENING STANDARD CONDITIONS, THE BAFFLES ARE PREFERABLY IN THE FORM OF PLATES OR DISCS SPACED LONGITUDINALLY

OF THE BALLAST CHAMBER WITH EACH HAVING A SPACE BETWEEN ITS OUTER PERIPHERY AND THE WALL OF THE CHAMBER, OR FORMED WITH PERFORATIONS THEREIN, OR A COMBINATION OF BOTH.