Attachment system for exhaust gas sampling funnel - has locking lever engaging inside exhaust pipe, lever having locking body and roller movable along control surfaces which operated in and out of locked position

摘要

A counter support (6) is provided in the funnel (1) with a swivelling locking lever (7) which engages the inside of the exhaust pipe (4). The locking lever is in the form of a knee lever with a locking body (8) at one free end and a roll body (9) with a movable control face (12) at the other. A hand operated element (15), acting against a return spring (16), actuates the control surfaces to slide out of the locked position. A remote spring loaded stop (17) is used to fix the control surfaces in the locked position. ADVANTAGE - Method of clamping and subsequently releasing a suction funnel to an engine exhaust pipe.