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1. WO2020005852 - AERODYNAMIC CATALYTIC CONVERTER

Publication Number WO/2020/005852
Publication Date 02.01.2020
International Application No. PCT/US2019/038768
International Filing Date 24.06.2019
IPC
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
1
Silencing apparatus characterised by method of silencing
08
by reducing exhaust energy by throttling or whirling
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
1
Silencing apparatus characterised by method of silencing
08
by reducing exhaust energy by throttling or whirling
12
using spirally- or helically-shaped channels
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
1
Silencing apparatus characterised by method of silencing
14
by adding air to exhaust gases
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
24
characterised by constructional aspects of converting apparatus
28
Construction of catalytic reactors
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
24
characterised by constructional aspects of converting apparatus
30
Arrangements for supply of additional air
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
D
FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
1
Influencing the flow of fluids
02
in pipes or conduits
04
Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements or elbows with respect to flow, specially for reducing losses of flow
F01N 1/08 (2006.01)
F01N 1/12 (2006.01)
F01N 1/14 (2006.01)
F01N 3/10 (2006.01)
F01N 3/28 (2006.01)
F01N 3/30 (2006.01)
CPC
B01D 53/9454
F01N 2330/06
F01N 2370/02
F01N 2510/06
F01N 3/0892
F01N 3/2825
Applicants
  • JAN, Jonathan [US/US]; US
  • SNAPER, Alvin A. [US/US]; US
Inventors
  • JAN, Jonathan; US
  • SNAPER, Alvin A.; US
Agents
  • CHEN, Ying; US
Priority Data
16/450,34924.06.2019US
62/690,39427.06.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AERODYNAMIC CATALYTIC CONVERTER
(FR) CONVERTISSEUR CATALYTIQUE AÉRODYNAMIQUE
Abstract
(EN)
An improved catalytic converter includes a Coanda chamber assembly connected upstream of a catalytic reaction chamber, where the exhaust pipe is to be connected to the Coanda chamber assembly. The Coanda chamber assembly forms a Coanda chamber that has at least one narrower section and at least one wider section immediately downstream of the narrower section, with openings formed at the narrowest point of a narrower section. In operation, when engine exhaust gas is fed into the Coanda chamber, the gas pressure increases at the narrower section, and drops when the gas enters the wider section. As a result, air is sucked into the Coanda chamber via the openings and mixes with the exhaust gas. This lowers the exhaust temperature and enhances the efficiency of the catalytic reactions in the catalytic reaction chamber.
(FR)
Cette invention concerne un convertisseur catalytique amélioré, comprenant un ensemble chambre à effet Coanda monté en amont d'une chambre de réaction catalytique, le tuyau d'échappement devant être raccordé à l'ensemble chambre à effet Coanda. L'ensemble chambre à effet Coanda forme une chambre à effet Coanda qui a au moins une section plus étroite et au moins une section plus large immédiatement en aval de la section plus étroite, avec des ouvertures formées au niveau du point le plus étroit d'une section plus étroite. Lors du fonctionnement, lorsqu'un gaz d'échappement du moteur est introduit dans la chambre à effet Coanda, la pression du gaz augmente au niveau de la section plus étroite, et diminue lorsque le gaz pénètre dans la section plus large. Par conséquent, de l'air est aspiré dans la chambre à effet Coanda par l'intermédiaire des ouvertures et se mélange avec le gaz d'échappement. Ceci abaisse la température d'échappement et améliore l'efficacité des réactions catalytiques dans la chambre de réaction catalytique.
Latest bibliographic data on file with the International Bureau