G - Physics – 01 – M
Patent
G - Physics
01
M
G01M 3/26 (2006.01) B60K 15/00 (2006.01) F02M 25/08 (2006.01) F02M 65/00 (2006.01)
Patent
CA 2328269
A fuel system leakage detector (1) includes a pressure source (3), a test head (4) adapted to be coupled to a fuel system (17), a pneumatic circuit (5) coupled to the pressure source (3) and the test head (4), a pneumatic circuit bypass (2) coupled to the pressure source (3) and the test head (4), and a signaling device (7). The pneumatic circuit (5) includes a measurement device (6) coupled to the signaling device (7) through which pressurized gas flows during leakage testing. Before testing, pressurized gas is diverted through the pneumatic circuit bypass (2) and bypasses the pneumatic circuit (5) including the measurement device (6) to charge the test head (4) and the fuel system (17) for testing. The measurement device (6) then detects gas pressure differences between the test head (4) and the atmosphere and the signaling device (7) indicates the results of the leakage test.
L'invention porte sur un détecteur (1) de fuites de carburant comportant une source de pression (3), une sonde (4) raccordée à un système (17) de carburant, un circuit pneumatique (5) raccordé à la source de pression (3) et à la sonde (4), une dérivation (2) du circuit pneumatique raccordée à la source de pression (3) et à la sonde (4), et un dispositif de signalisation (7). Le circuit pneumatique (5) comporte un dispositif de mesure (6) raccordé au dispositif de signalisation (7) traversé par du gaz sous pression pendant la vérification des fuites. Avant un essai, le gaz sous pression, dévié par la dérivation (2), contourne le circuit pneumatique (5) et son dispositif de mesure (6), et va charger la sonde (4) et le système de carburant (17) en vue de la vérification. Le dispositif de mesure (6) détecte le différentiel de pression entre la sonde (4) et l'atmosphère, tandis que le dispositif de signalisation (7) indique le résultat de la vérification.
Smart & Biggar
Stant Manufacturing Inc.
LandOfFree
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