JPH0861155A - Rotary type exhaust gas reusing recirculating method - Google Patents

Abstract

PURPOSE: To restrain generation of nitrogen oxides by extracting carbon dioxide contained in exhaust gas of an internal combustion engine by using a centrifugal separator, and partially returning it to intake gas. CONSTITUTION: The inside of a cylinder 1 is all partitioned by a fan-shaped chamber with a central part as the center, and a catalyst 12 is put in it, and a blade 3 is arranged in a front part, and a partition wall 5 is arranged in a rear part, and the cylinder 1 is rotated by force of exhaust gas.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary exhaust gas recirculation method in which exhaust gas from an internal combustion engine is reused.

[0002]

2. Description of the Related Art Conventionally, harmful exhaust gas components of vehicles are mainly hydrocarbons, carbon monoxide, and nitrogen oxides. Using a catalyst to suppress this gas, hydrocarbons and carbon monoxide are rendered harmless into water vapor and carbon dioxide, and nitrogen oxides react with nitrogen and oxygen in the air under high temperature combustion. Therefore, an EGR system is adopted in which a part of the exhaust gas is returned to the intake gas to lower the combustion temperature and suppress the reaction between nitrogen and oxygen.

[0003]

However, this has the following drawbacks. (B) In order to suppress the nitrogen oxides, the gas is indiscriminately extracted from the exhaust gas, so that the components are not uniform and the stoichiometric air-fuel ratio (toxic nitrogen oxides, hydrocarbons, carbon monoxide 10
0% purification rate) is slightly shifted. (B) The exhaust gas that has passed through the catalyst is blown into the air without being reused. The present invention has been made to eliminate these drawbacks.

[0004]

[Means for Solving the Problem] The inside of the cylinder (1) is all divided by a fan-shaped chamber (2) centered on the center, and a catalyst (12) is placed therein, and a blade (3) is provided in the front part. And a partition wall (5) is provided in the rear part, and (1) is rotated by the force of the exhaust gas. The present invention is a rotary exhaust gas recirculation device having the above-mentioned configuration.

[0005]

By doing so, centrifugation is performed in the cylinder (1), carbon dioxide (13), which is a heavy molecule, is guided to the outside, and is separated from other molecules by the partition wall (5). Alternatively, the partition wall (5) (FIG. 4) may be closed.

[0006]

EXAMPLE Next, the carbon dioxide (13) extracted by this apparatus is used. (B) A part of it is returned to the intake gas (6) and burned,
By suppressing the reaction between oxygen (10) and nitrogen (11), the generation of nitrogen oxides can be suppressed, and a stable stoichiometric air-fuel ratio can be obtained. (B) Cooling the high temperature carbon dioxide (13) to about room temperature (15), applying a pressure (16) of about 50 atmospheres to a liquid (17), and spurting it into a low pressure atmosphere. On the other hand, it suddenly evaporates, and the temperature in the vicinity falls to -78.5 degrees (18). Then, this is used as a cooling device. It should be noted that although the present invention has been shown and described with respect to particular embodiments, other method modifications are possible within the scope of the claims.

[0007]

The recycling of carbon dioxide also reduces harmful exhaust emissions. If it is used as a cooling device, the brake fade phenomenon and vapor lock phenomenon will be suppressed, and the safety will be improved. Moreover, as long as the engine is running, carbon dioxide can be extracted infinitely, so that it can be used in a wide variety of ways such as cooling a place having heat, carrying low temperature preservation, and the like.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a rear view of the present invention.

FIG. 3 is an explanatory diagram showing an example in which the present invention is carried out together with exhaust gas of an internal combustion engine.

FIG. 4 is an explanatory view showing an example in which the present invention is carried out together with exhaust gas of an internal combustion engine.

[Explanation of symbols]

1 Cylinder 2 Fan-shaped Chamber 3 Blade 4 Tube 5 Partition Wall 6 Intake Gas 7 Internal Combustion Engine 8 Hydrocarbon 9 Carbon Monoxide 10 Oxygen 11 Nitrogen 12 Catalyst 13 Carbon Dioxide 14 Steam 15 Cooling 16 Compression 17 Liquid 18 Injection-78,5 Every time

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location F01N 3/24 S 5/02 Z

Claims (4)

[Claims] 1. A cylinder (1) is divided into all by a fan-shaped chamber (2) centered on the center, a catalyst (12) is put therein, and a blade (3) is provided in the front part, and a rear part is provided. A device in which a partition wall (5) is provided in the section, (1) is rotated by the force of exhaust gas, and only carbon dioxide (13) is extracted by using centrifugal separation. 2. The inside of the cylinder (1) is divided by a fan-shaped chamber (2) centered on the center, and a blade (3) is provided in the front part and a partition wall (5) is provided in the rear part. And catalyst (12)
A device that rotates (1) by the force of the exhaust gas that has passed through and extracts only carbon dioxide (13) by utilizing centrifugation. 3. A method for suppressing the generation of nitrogen oxides by returning part of the carbon dioxide (13) extracted from claim 1 or 2 to the intake gas (6) and burning it. 4. A method of cooling (15) carbon dioxide (13) extracted from claims 1 and 2 and compressing (16) it into a liquid (17), injecting it (18) and using it as a cooling device. .