Suction device for the exhaust gases of motor vehicles
US5127875A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1990 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Nov 21, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B15/005
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.