Exhaust gas diffuser
OwnerFrançois Matteinventor
Life of this patent
Estimating the term…
Abstract
The diffuser can be used at an end of a vehicle exhaust system. The diffuser can have a generally hollow body with an inlet for receiving exhaust gasses from a substantially vertically-extending component of the vehicle exhaust system, and a substantially flat outlet grate through which the exhaust gasses are to be released to the atmosphere, the outlet grate being configured and adapted for use in a roof of the vehicle, in an aligned position therewith, with the hollow body of the diffuser positioned inside the vehicle and below the outlet grate.
Claims14
A diesel engine vehicle having a passenger area surrounded by walls and covered by a roof, a chamber inside the walls and partitioned from the passenger area, and a heat-emitting exhaust treatment unit having an outlet extending upwardly inside the chamber, and a diffuser having a hollow body having a proximal end, and a distal end oriented at least partially toward a forward direction of the vehicle relative to the proximal end, a diffuser inlet at the proximal end being connected to an exhaust pipe of the exhaust treatment unit, and a flat outlet grate extending above the hollow body of the diffuser, between the proximal end and the distal end, and oriented parallel to and positioned flush with a surrounding portion of the roof, the flat outlet grate forming a diffuser outlet leading out from the roof of the vehicle, the flat outlet grate also comprising vanes oriented at least partially toward a rear direction of the vehicle;
- further comprising a closure pivotally mounted within the hollow body, the closure being pivotally biased towards a closed position, against the inlet, the closure being pivotable into an open position, against the bias, by a force exerted by exhausting gasses.
A diesel engine vehicle having a passenger area surrounded by walls and covered by a roof, a chamber inside the walls and partitioned from the passenger area, and a heat-emitting exhaust treatment unit having an outlet extending upwardly inside the chamber, and a diffuser having a hollow body having a proximal end, and a distal end oriented at least partially toward a forward direction of the vehicle relative to the proximal end, a diffuser inlet at the proximal end being connected to an exhaust pipe of the exhaust treatment unit, and a flat outlet grate extending above the hollow body of the diffuser, between the proximal end and the distal end, and oriented parallel to and positioned flush with a surrounding portion of the roof, the flat outlet grate forming a diffuser outlet leading out from the roof of the vehicle, the flat outlet grate also comprising vanes oriented at least partially toward a rear direction of the vehicle;
- wherein the hollow body has a lower recess having a drain, and is shaped for channeling liquids toward the drain under the effect of gravity.
A diesel engine vehicle having a passenger area surrounded by walls and covered by a roof, a chamber inside the walls and partitioned from the passenger area, and a heat-emitting exhaust treatment unit having an outlet extending upwardly inside the chamber, and a diffuser having a hollow body having a proximal end, and a distal end oriented at least partially toward a forward direction of the vehicle relative to the proximal end, a diffuser inlet at the proximal end being connected to an exhaust pipe of the exhaust treatment unit, and a flat outlet grate extending above the hollow body of the diffuser, between the proximal end and the distal end, and oriented parallel to and positioned flush with a surrounding portion of the roof, the flat outlet grate forming a diffuser outlet leading out from the roof of the vehicle, the flat outlet grate also comprising vanes oriented at least partially toward a rear direction of the vehicle;
- wherein the hollow body is wedge-shaped, and the inlet is provided opposite a tip of the wedge shape.
An exhaust gas diffuser comprising:
- a hollow body shaped generally as a wedge, having a flat outlet with a plurality of slanted vanes, a sloping wall defining a wedge angle with the outlet and connecting the outlet grate at a tip of the hollow body, two opposite lateral walls connecting the sloping wall and the outlet, and an inlet opposite the tip connectable to an exhaust system of a vehicle, the sloping wall and the two opposite lateral walls forming a closed passage between the inlet and the outlet grate.
A diesel engine vehicle having a passenger area surrounded by walls and covered by a roof, a chamber inside the walls and partitioned from the passenger area, and a heat-emitting exhaust treatment unit having an outlet extending upwardly inside the chamber, and a diffuser having a hollow body having a proximal end, and a distal end oriented at least partially toward a forward direction of the vehicle relative to the proximal end, a diffuser inlet at the proximal end being connected to an exhaust pipe of the exhaust treatment unit, and a flat outlet grate extending above the hollow body of the diffuser, between the proximal end and the distal end, and oriented parallel to and positioned flush with a surrounding portion of the roof, the flat outlet grate forming a diffuser outlet leading out from the roof of the vehicle, the flat outlet grate also comprising vanes oriented at least partially toward a rear direction of the vehicle;
- wherein the hollow body forms a closed passage guiding the exhaust gasses from the inlet to the outlet;
- wherein the hollow body is substantially wedge-shaped, and the inlet is provided opposite a tip of the wedge shape further comprising a closure pivotally mounted within the hollow body, the closure being pivotally biased into a closed position, against the inlet, the closure being pivotable from the closed position into an open position, against the bias, by a force exerted by exhausting gasses;
- wherein the grate includes a plurality of interspaced vanes for orienting the exhaust gasses at least partially toward the rear of the vehicle;
- and wherein the hollow body has a lower recess having a drain, and is generally shaped for channeling liquids in the hollow body toward the drain under the effect of gravity.
Dependencies are inferred from the claim text.