KR20020043377A - Engine mounting having a heat-resisting cover - Google Patents

Abstract

PURPOSE: An engine mounting having a heat-resistant cover for a vehicle is provided to prevent the degradation of the elasticity and durability of vibroisolating rubber by preventing the transmission of heat from an exhaust manifold via a heat-resistant cover. CONSTITUTION: An engine mounting(20) includes a body(22), fixing brackets(24) for fixing the body to an engine bracket(11) and a chassis bracket(12), and a heat-resistant cover(26). The fixing brackets have fixing bolts fixed on the upper and lower faces of the body. The fixing brackets are connected with the engine bracket and the chassis bracket. The heat-resistant cover is placed to cover the body. Preferably, the cover is made from EPDM(Ethylene-Propylene-Diene Terpolymers) rubber. The cover has reinforcing ribs for reinforcing the stiffness of the cover have vent holes formed on a skirt portion of the cover. The heat passing through an exhaust manifold(14) is insulated by the cover. Therefore, the hardening of the rubber due to the heat is avoided.

Description

Engine mounting having a heat-resisting cover

The present invention relates to an engine mounting that supports an engine of an automobile to a vehicle body and simultaneously reduces the transmission of vibration and noise generated from the engine to the vehicle body.

In general, as shown in FIG. 1, an engine of a vehicle is mounted to a vehicle body by fixing an engine bracket 1 fixed to the engine to a vehicle body bracket 2 fixed to the vehicle body, and the engine bracket 1 and the engine bracket 1. An engine mounting 3 is installed between the vehicle body brackets 2 to prevent vibration and noise generated from the engine from being transmitted to the vehicle body.

In the related art, a simple shape of the engine mounting using the anti-vibration rubber has been used, but in recent years, the fluid type engine mounting which is more excellent in reducing vibration and noise is mainly used. Fluid engine mounting mainly reduces vibrations and noise by enclosing the fluid inside the anti-vibration rubber to convert the vibration generated in the engine into the kinetic energy of the fluid.

However, such a conventional fluid engine mounting has the following disadvantages.

In other words, the various components in the engine room are very narrow in distance so that various components are effectively accommodated in the narrow engine room. In the case of the above-described engine mounting, for example, as shown in FIG. 1, when the exhaust manifold 4 passes over the engine bracket 1 to which the engine mounting 3 is fixed, the exhaust manifold ( The high heat of combustion gas passing through 4) is transmitted to the engine mounting 3. Even when an exhaust manifold protector is installed around the exhaust manifold 4 to block heat transferred from the exhaust manifold 4 to the external components, the combustion gas delivered to the dustproof rubber of the engine mounting 3 The heat reaches up to 120 ° C.

Accordingly, there is a problem in that the anti-vibration rubber of the engine mounting is cured by high heat so that its elasticity and durability are degraded and its shape is permanently deformed, thereby losing its function as an engine mounting. As a result, the vibration of the engine is transmitted to the vehicle body as it is, the steering wheel is shaken, and the vibration is transmitted to each part of the vehicle, so that the riding comfort is lowered. There is a problem that the noise is greatly generated by being transmitted to the interior and exterior through the body.

The present invention has been made in view of the above, and an object thereof is to provide an engine mounting for automobiles that can prevent thermal curing and thermal deformation of the anti-vibration rubber due to high heat of the exhaust manifold.

1 is a perspective view showing a conventional engine mounting.

2 is a perspective view showing the engine mounting according to an embodiment of the present invention.

3 is a perspective view showing a cover of the engine mounting according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

11: engine bracket 12: body bracket

14: exhaust manifold 20: engine mounting

22: body 24: fixing bracket

26: heat resistant cover 27: reinforcing rib

28: ventilator

The present invention for achieving the above object, including the body and the body consisting of the anti-dust rubber and the brackets for supporting the anti-vibration rubber to the engine bracket and the vehicle body, to reduce the vibration and noise generated in the engine As an engine mounting to prevent the vibration and noise of the engine to be transmitted to the vehicle body, and further comprising a heat-resistant cover for covering the body to prevent the high heat of the combustion gas passing through the exhaust manifold to be transmitted to the body.

The cover has a top portion and a skirt portion extending downward along the top circumference, and a plurality of ribs are formed in the skirt portion to reinforce rigidity against high frequency vibration. In addition, the cover may be formed with a plurality of ventilation holes in the skirt portion.

Preferably, the cover is made of heat resistant rubber.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

2 illustrates an engine mounting for an automobile according to an embodiment of the present invention.

As shown, the vehicle engine mounting 20 according to an embodiment of the present invention is a fixing bracket for fixing the body 22, the body 22 to the engine bracket 11 and the body bracket 12 ( 24) and a heat resistant cover 26.

The body 22 is made of anti-dust rubber and brackets for supporting the anti-vibration rubber, and in the case of the fluid mounting, the fluid is sealed therein.

The fixing brackets 24 have fixing bolts fixed to the top and bottom surfaces of the body 22, respectively, and are inserted into fastening holes formed in the engine bracket 11 and the body bracket 12, respectively, and fastened with nuts 15. . Accordingly, the body 22 is fixed to the engine bracket 11 and the body bracket 12.

The heat resistant cover 26 is covered to cover the body 22 from the upper side of the body 22, the skirt portion extending downward from the circumference of the upper plate 26a and the upper plate 26a placed on the upper surface of the body 22 Has 26b. Preferably, the cover 26 is made of heat resistant rubber (EPDM).

In addition, as shown in more detail in FIG. 3, the cover 26 has a plurality of reinforcing ribs 27 formed along the skirt portion 26b in the vertical direction. The reinforcing ribs 27 are for reinforcing rigidity against high frequency vibration. In addition, a plurality of ventilation holes 28 are formed in the skirt portion 26b of the cover 26. The fixing bolt of the fixing bracket 24 fixed to the upper surface of the body 22 passes through the through hole 29 formed in the upper plate 26a of the cover 26.

The high heat of combustion gas passing through the exhaust manifold 14 is blocked by the heat resistant cover 26 so as not to be transferred to the body 22. As a result of the experiment, it was confirmed that the temperature of the anti-dust rubber of the body 22 does not exceed a maximum of 75 ℃. Thereby, hardening phenomenon by the heat of anti-vibration rubber does not arise.

The engine mounting according to the invention as described above comprises a heat resistant cover for blocking the high heat delivered from the exhaust manifold. Therefore, since the anti-vibration rubber of the body is not cured by high heat, there is an advantage that the elasticity and durability of the anti-vibration rubber does not decrease.

In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It can be changed.

Claims (4)

It includes a body consisting of the anti-dust rubber and the brackets for supporting the anti-vibration rubber and a fixed bracket for fixing the body to the engine bracket and the body, and reduces the vibration and noise generated from the engine to transfer the vibration and noise of the engine to the body In engine mounting to prevent And a heat resistant cover covering the body to prevent high heat of the combustion gas passing through the exhaust manifold from being transferred to the body. 2. The vehicle engine mounting of claim 1, wherein the cover has a skirt portion extending downward along the upper plate and the upper plate circumference, and a plurality of ribs are formed in the skirt portion to reinforce rigidity against high frequency vibration. 3. The vehicle engine mounting of claim 2, wherein the cover has a plurality of ventilation holes formed therein. 4. The vehicle engine mounting according to any one of claims 1 to 3, wherein the cover is made of a heat resistant rubber.