A revision indicator for air purifyers. (Machine-translation by Google Translate, not legally binding)

摘要

A revision indicator for air purifiers, whose indicator is characterized by a body (5) having a chamber (6) and adapted for connection to the air intake duct (3) of an internal combustión engine (4), to place the camera (6) in communication with the air duct (3), a flexible diaphragm (9) in said chamber (6), a warning device (17), and a connection (18) between the diaphragm (9) and the warning device (17), the arrangement being such that, when the depression in the manifold increases to a predetermined amount, the diaphragm (9) moves and performs the actuation of said device (17) through the connection (18) to provide a warning that the air purifier requires a check. (Machine-translation by Google Translate, not legally binding)