FR2455738A1 - Seal testing of hollow bodies - using equaliser unit for body gas overpressure and temp. difference compensation - Google Patents

Seal testing of hollow bodies - using equaliser unit for body gas overpressure and temp. difference compensation

Info

Publication number
FR2455738A1
FR2455738A1 FR7911035A FR7911035A FR2455738A1 FR 2455738 A1 FR2455738 A1 FR 2455738A1 FR 7911035 A FR7911035 A FR 7911035A FR 7911035 A FR7911035 A FR 7911035A FR 2455738 A1 FR2455738 A1 FR 2455738A1
Authority
FR
France
Prior art keywords
temp
hollow bodies
difference compensation
gas
body gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7911035A
Other languages
French (fr)
Other versions
FR2455738B1 (en
Inventor
J J Golovach
J V Lutsuk
A A Motorin
V D Seregin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INST SANITARNOI TEKHN
Original Assignee
INST SANITARNOI TEKHN
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE2912100A priority Critical patent/DE2912100C2/en
Application filed by INST SANITARNOI TEKHN filed Critical INST SANITARNOI TEKHN
Priority to FR7911035A priority patent/FR2455738A1/en
Publication of FR2455738A1 publication Critical patent/FR2455738A1/en
Application granted granted Critical
Publication of FR2455738B1 publication Critical patent/FR2455738B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3263—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers using a differential pressure detector

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The arrangement for testing hollow bodies for sealing has a sample chamber with sealing elements for holes in the sample body and a pressurised gas system. It enables compensation of errors due to differences in temp. between the sample body and its surroundings to body and seal deformation. The accuracy of measurement is increased w.r.t. conventional arrangements without requiring a complicated system for monitoring the gas pressure. An additional equaliser unit for the gas overpressure in the hollow body is a valve connected to the monitoring system for the gas flowing through the body in the event of a leak, with the atmos. and with the inside of the body. A time relay driving a control input of the valve has its input connected to the chamber.
FR7911035A 1979-03-27 1979-05-02 Seal testing of hollow bodies - using equaliser unit for body gas overpressure and temp. difference compensation Granted FR2455738A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2912100A DE2912100C2 (en) 1979-03-27 1979-03-27 Device for testing the tightness of hollow bodies
FR7911035A FR2455738A1 (en) 1979-03-27 1979-05-02 Seal testing of hollow bodies - using equaliser unit for body gas overpressure and temp. difference compensation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2912100A DE2912100C2 (en) 1979-03-27 1979-03-27 Device for testing the tightness of hollow bodies
FR7911035A FR2455738A1 (en) 1979-03-27 1979-05-02 Seal testing of hollow bodies - using equaliser unit for body gas overpressure and temp. difference compensation

Publications (2)

Publication Number Publication Date
FR2455738A1 true FR2455738A1 (en) 1980-11-28
FR2455738B1 FR2455738B1 (en) 1983-12-02

Family

ID=25778425

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911035A Granted FR2455738A1 (en) 1979-03-27 1979-05-02 Seal testing of hollow bodies - using equaliser unit for body gas overpressure and temp. difference compensation

Country Status (2)

Country Link
DE (1) DE2912100C2 (en)
FR (1) FR2455738A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509839A1 (en) * 1981-07-20 1983-01-21 Marathon Oil Co LEAK DETECTION APPARATUS IN A CRYOGENIC TANK
FR2849193A1 (en) * 2002-12-19 2004-06-25 Euraltech Sa Leak-testing method, especially for testing motor vehicle cylinder heads, wherein the item under test is sealed off and connected to a vacuum pump so that a vacuum pressure is obtained that is monitored over a test period
RU172904U1 (en) * 2016-10-06 2017-07-31 Руслан Владимирович Дорошенко STAND FOR CHECKING THE TIGHTNESS OF RADIATORS BEFORE AND AFTER REPAIR

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179331A (en) * 1982-04-14 1983-10-20 Toyoda Gosei Co Ltd Leak detecting device of brake hose
US4532795A (en) * 1984-04-23 1985-08-06 Semyon Brayman Method of temperature compensating leak rate testing
IT1248111B (en) * 1991-06-21 1995-01-05 Borli Srl AIR TIGHTNESS TEST MACHINE ON WHEEL RIMS OBTAINED BY MELTING.
DE4212938A1 (en) * 1992-04-18 1993-10-21 Rexroth Mannesmann Gmbh Seal testing appts. e.g. for testing vehicle shock absorber - has pressure source for filling first chamber with gas and uses pressure sensor to determine pressure increase in second chamber
DE10241368B4 (en) * 2002-09-06 2007-05-10 Bayerische Motoren Werke Ag Leak test method for a cavity of a machine housing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872806A (en) * 1956-05-23 1959-02-10 Moore Products Co Leak testing apparatus
FR2122817A5 (en) * 1971-01-20 1972-09-01 Torre Jean
US3987664A (en) * 1975-12-16 1976-10-26 Applied Fluidics, Inc. Dry-testing system for detecting leaks in containers
US4126034A (en) * 1978-01-30 1978-11-21 Rheem Manufacturing Company Method and apparatus for container pressure testing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243420B (en) * 1956-07-02 1967-06-29 Bendix Corp Testing device for determining the degree of leakage in pressurized devices
SE386271B (en) * 1974-09-25 1976-08-02 G M Bergstrand DEVICE FOR CHECKING LEAKAGE FROM A CONTAINER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872806A (en) * 1956-05-23 1959-02-10 Moore Products Co Leak testing apparatus
FR2122817A5 (en) * 1971-01-20 1972-09-01 Torre Jean
US3987664A (en) * 1975-12-16 1976-10-26 Applied Fluidics, Inc. Dry-testing system for detecting leaks in containers
US4126034A (en) * 1978-01-30 1978-11-21 Rheem Manufacturing Company Method and apparatus for container pressure testing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509839A1 (en) * 1981-07-20 1983-01-21 Marathon Oil Co LEAK DETECTION APPARATUS IN A CRYOGENIC TANK
FR2849193A1 (en) * 2002-12-19 2004-06-25 Euraltech Sa Leak-testing method, especially for testing motor vehicle cylinder heads, wherein the item under test is sealed off and connected to a vacuum pump so that a vacuum pressure is obtained that is monitored over a test period
RU172904U1 (en) * 2016-10-06 2017-07-31 Руслан Владимирович Дорошенко STAND FOR CHECKING THE TIGHTNESS OF RADIATORS BEFORE AND AFTER REPAIR

Also Published As

Publication number Publication date
FR2455738B1 (en) 1983-12-02
DE2912100C2 (en) 1986-10-02
DE2912100A1 (en) 1980-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse