KR20000019336A - Catalyst preheating device for hybrid use - Google Patents

Abstract

PURPOSE: A catalyst preheating device for hybrid use is provided which heats the catalyst by delivering heat generated from the brake disc to the manifold catalyst, using the heating pipe. CONSTITUTION: A catalyst preheating device for a hybrid use which heats the catalyst before the engine is started by delivering heat generated from the brake disc, by the running of the motor, to the manifold catalyst using the heating pipe comprises; each brake disc pad(20) to apply the brake to the vehicle; a heating pipe line(30) interposed between the manifold catalyst(10). The heating pipe(30) is structured to extend to the heat collection panel(21) placed behind the brake disc pad(20) and to the other heat collection pad(11) embracing the manifold catalyst(10).

Description

Hybrid catalyst preheater

TECHNICAL FIELD The present invention relates to a catalyst preheating device for a hybrid, and in particular, a catalyst for a hybrid that heats a catalyst by transferring heat generated in a brake disc to a manifold catalyst using a heating pipe during a period of operation by a motor before an engine is started. Relates to a device.

By adding a motor, which is another power source, to an existing internal combustion engine, that is, a system using gasoline, diesel, etc., the operating area of the internal combustion engine is placed at the highest efficiency point, and the power required for acceleration or deceleration is imposed through the motor. In order to reduce fuel consumption and exhaust gas, a hybrid electeic vehicle has been used and used.

That is, in the hybrid power transmission system, as shown in FIG. 1, the operating area of the internal combustion engine is placed at the highest efficiency point between the engine 1 and the transmission mission 2 to impose the necessary power during acceleration or deceleration. A motor 3 is provided to reduce the burden.

At this time, the clutch 4 is installed between the engine 1 and the motor 3 so that the engine 1 and the motor 3 can be utilized simultaneously.

The clutch 4 generally used an automated auto clutch system or an electromagnetic clutch.

In addition, in the power transmission system for the hybrid, a manifold type catalyst device 10 is used as shown in FIG. 2 to purify the gas discharged from the engine 1.

However, the hybrid power transmission system has a problem in that the exhaust temperature is lower than that of a normal gasoline car, and since the engine stops and operates repeatedly, sufficient post-treatment of exhaust gas only by the manifold type catalyst device 10 is not performed. There is this.

The present invention is to solve the above-mentioned drawback, the heat transfer to the manifold catalyst by heating the heat generated in the brake disk during the period of operation by the motor before the engine is started to heat the catalyst by using a heating pipe, the manifold catalyst It is to shorten the period of cold start in which most of the harmful exhaust gas is discharged by reaching the active point within a short time when the engine is started.

In order to achieve the above object, the present invention provides a hybrid vehicle for reducing the burden on the engine by placing the driving area of the internal combustion engine at the highest efficiency point and applying the necessary power during acceleration or deceleration, for braking the vehicle. A heating pipe is connected between each brake disc pad and a manifold catalyst connected to the exhaust manifold.

The heating pipe is characterized in that the heat collecting plate formed in the rear portion of the brake disc pad and the heat collecting plate surrounding the manifold catalyst is formed.

1 is a view briefly showing the structure of a conventional power transmission system for a hybrid;

2 is a view showing a state in which a catalyst device is installed in a conventional hybrid engine,

Figure 3 is a simplified view showing the installation structure of the catalyst device for a hybrid of the present invention,

Figure 4 is a view showing a connection state of the manifold catalyst and the disk pad of the present invention.

<Description of Symbols for Major Parts of Drawings>

1: engine 10: catalyst device

11,21: heat collecting plate 20: brake disc pad

30: heating pipe

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the same reference numerals are given to the same configurations and names as in the prior art.

FIG. 3 is a view schematically showing the installation structure of the catalyst preheater for hybrid of the present invention, and FIG. 4 is a view showing a connection state between the manifold catalyst and the disk pad of the present invention.

The present invention is a hybrid vehicle for reducing the burden on the engine by applying the power required during acceleration and deceleration to put the operating area of the internal combustion engine at the highest efficiency point, as shown in Figure 3 or 4, the braking of the vehicle The heating pipe 30 is connected between each brake disk pad 20 and the manifold catalyst 10 for the technical configuration.

In addition, the heating pipe 30 is extended to the heat collecting plate 21 formed at the rear of the brake disc pad 20 and the heat collecting plate 11 surrounding the manifold catalyst 10.

Therefore, the hybrid catalyst device configured as described above collects heat generated from the brake disc in the heat collecting plate 21 during the period of operation by the motor 3 before the engine 1 is started, and heats up the condensed heat. Through the 30, the heat collecting plate 11 surrounding the catalyst monolith in the manifold catalyst 10 is preheated.

Thus, the heated manifold catalyst can reach the active point in a short time at engine start-up.

As described above, the present invention transmits heat generated in the brake disc during the period of operation by the motor before the engine is started to the manifold catalyst by heating pipe, thereby heating the catalyst. By reaching the active point, it is possible to shorten the cold start period in which most harmful exhaust gases are emitted.

Claims (2)

In a hybrid vehicle for reducing the burden on the engine by placing the operating area of the internal combustion engine at the highest efficiency point and imposing power required for acceleration or deceleration, And a heating pipe is connected between each brake disk pad and the manifold catalyst for braking the vehicle. 2. The catalyst preheater of claim 1, wherein the heating pipe extends on a heat collecting plate formed at a rear portion of the brake disc pad and a heat collecting plate surrounding the manifold catalyst.