Suction device for the exhaust gases of motor vehicles

Details Suction device for the exhaust gases of motor vehicles Suction device for the exhaust gases of motor vehicles

1990-11-21

1992-07-07

Joyce, Harold

Ventilation

Workstation ventilator

Movable

B08B 1500

Patent

active

051278758

ABSTRACT:
The suction device for the exhaust gases of motor vehicles moved by a first conveyor (1) onto or over a platform (2), is provided with a suction slotted duct (4) with an elastic, axially-directed lip-type packing (3) located below the platform and through which passes a suction nozzle (22) from suction trolleys (20) moved synchronously with the vehicle. The suction trolley has a suction hood (21) for connecting to the vehicle exhaust. The suction trolley runs on a continuous rail with return section (5), the suction slotted duct being at a higher level. In order to avoid a mechanical coupling of the suction trolley and motor vehicle or exhaust and therefore the corresponding use of manpower, in addition to the first conveyor (1) for the vehicles a second continuous conveyor (9) moved synchronously with the first is provided and has a plurality of drivers (10) for the suction trolleys (20). On each suction trolley is provided a motor-operated, preferably by an electromagnet (29), pawl (30) which forms and interrupts the connection and coupling to a driver (10) of the second conveyor (9). By a correspondingly adapted control with the aid of a parallel, continuous contact rail (8) the pawls (30) are connected to or separated from the drivers, such that the suction trolleys or their hoods (21) are automaticallly connected to the exhaust of the associated vehicle and after passing through a test section are separated therefrom again.

REFERENCES:
patent: 3602128 (1971-08-01), Lindkvist
patent: 4087333 (1978-05-01), Naeueutad
patent: 4389923 (1983-06-01), Ludscheidt
patent: 4660465 (1987-04-01), Jentzsch et al.
patent: 4724751 (1988-02-01), Jentzsch et al.

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