KR19980029527A - Exhaust Manifold for Vehicles with Water Gallery - Google Patents

Abstract

The present invention relates to a vehicle exhaust manifold equipped with a water gallery, in the exhaust manifold (M) to collect the exhaust gas generated in the engine (E) to be discharged to the outside, the cylinder head ( The water gallery WG is formed outside the port P formed in the SH, and the water gallery outside the port P ′ of the exhaust manifold M installed in communication with the port P of the cylinder head SH. (WG) is formed so that the exhaust manifold (M) can be cooled by the circulation of cooling water, which increases the product reliability of the exhaust manifold and can be applied to the turbocharged engine with the existing exhaust manifold. have.

Description

Exhaust Manifold for Vehicles with Water Gallery

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle exhaust manifold in which a water gallery is installed, and in particular, a water gallery is formed in a cylinder head of the engine and an exhaust manifold to cool the exhaust manifold while passing through the coolant. It is about an exhaust manifold equipped with a water gallery.

In general, the exhaust manifold collects the exhaust gas generated from the cylinder of the engine and discharges it to the outside. The exhaust manifold uses a material that can withstand the high temperature heat generated by the exhaust gas when the engine is driven.

In particular, in turbocharged diesel engines, as the exhaust gas temperature increases, the material is also changed to FCD 45 or FCD 55S to increase the heat resistance of the exhaust manifold.

Referring to the structure of the conventional exhaust manifold (M) as shown in Figure 4 the cylinder head (SH) is provided on the upper cylinder block (SB) of the engine (E), the cylinder head (SH) of The head cover is installed at the top.

One side of the cylinder head (SH) is fixed to the exhaust manifold (M) having a single or a plurality of ports (P) formed therein according to the number of cylinders of the cylinder.

However, the exhaust manifold (M) is a large heat load is generated by the high temperature when the exhaust gas generated in the combustion chamber of the engine (E) to the outside through the port (P).

Therefore, it is not easy to manufacture the exhaust manifold (M) by using a separate heat-resistant material in order to seal the heat load generated in the exhaust manifold (M), due to the heat load rise the exhaust manifold (M) and the surrounding components There was a problem of weakening the reliability of the back.

The present invention has been invented to solve the above conventional problems, the water gallery is formed in communication with each other outside the port formed in the cylinder head of the engine and the port of the exhaust manifold installed in the cylinder head, respectively, which is generated during exhaust gas discharge. It is an object of the present invention to be able to cool the exhaust manifold that is generated by high temperature and to improve the product reliability of the exhaust manifold.

1 is an application state of the present invention.

Figure 2 is an attempt to separate the cylinder head and the exhaust manifold equipped with the water gallery of the present invention.

3 is a cross-sectional view of the installation state of the present invention.

4 is a cross-sectional view of the operation of the present invention.

5 is a conventional structural diagram.

(Explanation of symbols for the main parts of the drawing)

E; Engine SB; Cylinder block

SH; Cylinder head P; Cylinder head port

WG; Gallery M of cylinder head water; Exhaust manifold

P; Exhaust manifold port WG ′; Exhaust Manifold's Water Gallery

Hereinafter, the configuration of the present invention in detail.

In the exhaust manifold M, which collects exhaust gas generated from the engine E and discharges it to the outside, the water gallery WG outside the port P formed in the cylinder head SH of the engine E. ), A water gallery (WG) is formed outside the port (P ') of the exhaust manifold (M) which is installed in communication with the port (P) of the cylinder head (SH), the exhaust manifold ( M) can be cooled.

One embodiment of the present invention thus made will be described in detail as follows.

2, the cylinder head SH is installed on the cylinder block SB of the engine E, and the exhaust manifold M is connected to one side of the cylinder head SH.

The cylinder head SH and the exhaust manifold M communicate with each other by forming a port P (P ′) for each cylinder of the cylinder. The port P and the exhaust manifold M of the cylinder head SH are communicated with each other. Outside the port (P ') of the water gallery (WG) (WG') is formed in communication with each other.

The water gallery WG of the cylinder head SH is formed in a plurality of lower portions of both ports P and P ′ so that the cooling water of the engine E is supplied, and each port of the exhaust manifold M is provided. In (P) (P '), a water gallery (WG') communicating with the port (P) of the cylinder head (SH) is formed outside the port (P ').

In the drawings, reference numeral HC denotes a head cover.

Referring to the operation and effects of the present invention as described above in detail.

As shown in FIG. 3, a cylinder head SH having a port P corresponding to the number of cylinders is installed on the cylinder block SB of the engine E, and the port P ′ of the cylinder head SH is installed. On both lower sides, a plurality of water galleries WG are formed to supply cooling water.

One side of the cylinder head (SH) is connected to the exhaust manifold (M) to communicate the port (P ') of the exhaust manifold (M) with the port (P) of the cylinder head (SH), cylinder head (SH) The water gallery (WG ') in communication with the water gallery (WG) of the) is formed outside the port (P') of the exhaust manifold (M).

In the exhaust manifold M, the exhaust gas generated in the combustion chamber when the engine E is driven is discharged to the outside through the port P of the cylinder head SH and the port P ′ of the exhaust manifold M. do.

The exhaust manifold (M) is generated by the high temperature heat generated from the exhaust gas discharged at this time. At this time, the water gallery (WG) of the cylinder head (SH) connected to the cooling water supply device and the water gallery (M) of the exhaust manifold (M) The temperature rise is prevented by supplying and cooling the cooling water to WG).

Therefore, the exhaust manifold (M) in the existing material to use a turbocharged engine with a high temperature rise, it is possible to reduce the reliability and cost of the exhaust manifold (M).

As described above, the present invention forms a water gallery in communication with the cylinder head of the engine and the exhaust manifold so that the exhaust manifold can be cooled by passing the coolant, thereby increasing the product reliability of the exhaust manifold. In addition, the existing exhaust manifold has an effect that can be applied to the turbocharged engine.

Claims (3)

In the exhaust manifold M, which collects exhaust gas generated from the engine E and discharges it to the outside, the water gallery WG outside the port P formed in the cylinder head SH of the engine E. ), A water gallery (WG) is formed outside the port (P ') of the exhaust manifold (M) which is installed in communication with the port (P) of the cylinder head (SH), the exhaust manifold ( A vehicle exhaust manifold equipped with a water gallery, characterized by being capable of cooling M). The water gallery (WG ') formed in the cylinder head (SH) and the exhaust manifold (M) is formed in each of the ports (P') formed in accordance with the number of cylinders of each cylinder. Exhaust manifold for vehicles with water gallery installed. The vehicle exhaust manifold according to claim 1, wherein the water gallery (WG ') formed in the exhaust manifold (M) is formed along the outer periphery of the lower side of the port (P').