Volvo Personvagnar Ab

Daf Trucks N.v.

Josef Saberi

Franciscus Thomas Everardus Janssen

Albertus Martinus Herman Wieland

Gerardus Theodorus Aldegonda Van Den Beucken

Erno François Caroli Ligthart

A device for use in a truck for lowering the temperature of exhaust gas of a combustion engine has a diffuser, which is provided with a cylindrical housingprovided with an inlet openingin an end walland an elongated axially extending outlet openingin the cylinder wall. The device furthermore has a bent guide platewhich extends from the outlet opening, so that, as a result of the Coanda effect, the hot exhaust gas is diverted along the plate and the jet widens, so that a better mixing with the ambient air, and hence greater cooling, takes place.

Truck provided with a device for lowering the temperature of exhaust gas

A device for a sound-absorbing unit for reduction of sounds from a flowing gas stream, including a first flow path and a second flow path for said gas stream and a switch-over device for alternating guiding of the gas stream along the first flow path and the second flow path, respectively. A detection device for detection of the pressure of said gas stream, and that the switch-over device comprises an adjustable throttle for blocking of the first flow path when a pressure which is below a predetermined limit value is detected, wherein the gas stream is guided through said second flow path, and that the throttle is adapted to be opened if said limit value is exceeded, wherein the gas stream is guided along said first flow path. By means of the invention, an improved adjustable device is provided for mufflers for vehicles, said device providing an effective sound absorption, a small mounting volume and a low back pressure during high engine speeds.

Growing community of inventors

Eindhoven, Netherlands

Josef Saberi