CYLINDER BLOCK WITH EGR COOLER HOUSING Field of the Invention

The present invention relates to a cylinder block with an EGR cooler housing which has housing and parts in which the EGR cooler can be mounted on the engine cylinder block.

Background of the Invention

In internal combustion engines, there are harmful gases such as carbon monoxide (CO), nitrogen oxide (NOx), hydrocarbon (HC) as a result of combustion. The emission of harmful gases generated as a result of combustion directly to the atmosphere is very dangerous and forbidden in terms of environmental and human health. The harmful gases generated as a result of combustion should be lowered to the values determined by the regulations before releasing to the atmosphere. In internal combustion engine-powered vehicles, there are several systems and applications in order to reduce the harmful gases to acceptable emission levels. One of these applications is exhaust gas recirculation (EGR) system. In EGR system, some part of exhaust gases is included into the combustion process. The gases included into the combustion process do not burn in the engine; they reduce combustion temperature in the engine and enable the harmful gases to be discharged from the exhaust system. By means of EGR system, combustion temperature is reduced, and the generation of nitrogen oxide gas is decreased. In the system, EGR cooler is used in order to send more gas to the combustion chamber by increasing the density of the gas. EGR cooler is placed different places around the engine depending on the engine package, and it is fixed on placed where it is located differently. Connecting members and carriers have to be placed around the engine for the mounting of EGR cooler, and these procedures cause additional weight and space loss.

The EGR coolers used today are mostly fixed somewhere close to the engine or somewhere on the engine. A connection is made between the place where the EGR cooler is fixed and the engine, and thus exhaust gases are enabled to be cooled.

Japanese Patent document no JP2001132556 (A), an application known in the state of the art, discloses a cooling device used for EGR and oil. In the device, there is a housing part which is directly connected to the cylinder block and EGR and oil heat exchanger. Therefore, the pipes directing the coolant to the cooler housing are eliminated. In the said patent document, there is no explanation about mounting the EGR cooler into a housing on the engine block, or how it can be mounted. There are obvious differences between the Japanese Patent document and the invention of the present application in terms of forming a housing on the cylinder block for EGR cooler and fixing the EGR cooler into this housing with the connecting members. The EGR cooler is mounted into the cylinder block with the invention of the present application. Therefore, an extra space is not needed for the EGR block and connection is enabled to be easy.

The German patent document no. DE102012013884 (Al), an application in the state of the art, discloses a fastening assembly used in the cylinder head. In the fastening assembly, there is a clamping strip which fixes the attachment unit to the cylinder head. In the clamping strip, there is a positioning element which fixes the cylinder head. In the said patent document, there is no explanation about mounting the EGR cooler into a housing on the engine block. There are obvious differences between the German Patent document and the invention of the present application in terms of forming a housing on the cylinder block for EGR cooler and fixing the EGR cooler into this housing with the connecting members. The EGR cooler is mounted into the cylinder block with the invention of the present application. Therefore, an extra space is not needed for the EGR block and connection is enabled to be easy.

In the current applications, EGR cooler is generally placed on the engine or somewhere close to the engine block. Therefore it is targeted to form a compact structure for cooling the combustion gas. In the current applications, mounting the EGR cooler into a housing on the cylinder block is not disclosed. It is not disclosed that a special housing is made on the engine cylinder block is formed during casting for the EGR cooleT, and the EGR cooler is directly mounted into the said housing. There is no explanation about the members completely fitting on the engine cylinder block according to the form of the EGR cooler and mounting the cooler to the cylinder block with the connecting members integrated to the said housing. The Objective of the Invention

The objective of the present invention is to provide a cylinder block with EGR cooler housing wherein there is an area on the engine cylinder block in which the EGR cooler can be mounted.

Another objective of the present invention is to provide a cylinder block with EGR cooler housing which enables the EGR cooler to be mounted on the cylinder block. A further objective of the present invention is to provide a cylinder block with EGR cooler housing which does not take extra space on the vehicle, provides ease of packing and wherein the engine weight is decreased.

Summary of the Invention By means of the cylinder block with EGR cooler housing disclosed in the first claim and the other claims dependent to the said claim realized to achieve ^' the objective of the present invention, there is no need for separating an extra space for mounting EGR cooler, and more compact design is achieved inside the hood. An area is formed on the block for EGR cooler during casting the cylinder block. The said area on the cylinder block is preferably in form of EGR cooler or it is close to this form. EGR cooler area is preferably obtained by forming base and side surface on the body and connecting them. The EGR cooler is placed on this area on the body or within the body and fixed with the connecting members. Therefore, a compact area on which EGR cooler can be mounted with the engine cylinder block is formed, and the cooler is mounted here. Therefore, the cooler is placed close to the place where it is to be used, and there is no need for planning and extra space for the cooler. Detailed Description of the Invention

The cylinder block with EGR cooler housing which is developed in order to achieve the objective of the present invention is illustrated in the accompanying figures, wherein

Figure 1 is the schematic view of the cylinder block with EGR cooler housing. Figure 2 is the schematic view of the cylinder block with EGR cooler housing without connecting members.

Figure 3 is the close schematic view of the cylinder block with EGR cooler housing.

Figure 4 is the close schematic view of the cylinder block with EGR cooler housing without connecting members.

Figure 5 is the schematic view of the cylinder block on which the EGR cooler housing is placed. The components shown in the figures are each given reference numbers as follows:

1. Cylinder block with EGR cooler housing

2. Body

3. Housing

4. Base

5. Lateral surface

6. Bearing surface

7. Connection hole

8. Connecting member

E:EGR cooler

A cylinder block with EGR cooler housing (1), on which the EGR cooler (E) can be mounted and which enables the EGR cooler (E) to be fixed in volume in its own dimensions, comprises

- a body (2),

- at least one housing (3) which forms an area preferably in same sizes with EGR cooler (E) inside or outside the body (2), on the body (2),

- at least one base (4) which forms the lower ground of the housing (3),

- at least one lateral surface (5) which forms the lateral ground of the housing (3),

- at least one bearing surface (6) which is located on the base (4) and the lateral surface (5), and on which the EGR cooler (E) fits,

- at least two connecting members (8) which enable the EGR cooler (E) to remain fixed on the bearing surface(6).

By means of the inventive cylinder block with EGR cooler housing (1), the EGR cooler (E) is mounted on the area separated for itself on the cylinder block body (2) and measured for the EGR cooler (E), therefore space is saved in the limited area under the hood. In the limited area under the engine hood, engine cylinder block body (2) is manufactured specially so that that the EGR cooler (E) does not take much space. There is an area, name at least one housing (3) for the EGR cooler (E) on the body (2). The housing (3) is preferably in somewhere close to the chambers wherein the combustion takes place in the engine on the body (2). The housing (3) is on the body (2) or within the body (2). The housing (3) is on the body (2) or inside an area which is formed with recess or protrusion inwards or outwards on the body (2). The housing (3) is preferably in size close to the EGR cooler (E), it is compatible with the structure of the EGR cooler (E). For example, the protruding, recessed, narrowing and widened parts of the EGR cooler (E) are similar in the housing (3), and there are protrusions, recesses, narrowing, and widened parts on the housing (3) Symmetrical to the EGR cooler (E). In the preferred embodiment of the invention, the housing (3) is close to the combustion chamber and it is at least in size of the EGR cooler (E). The base (4) forms the lower surface of the housing (3). The base (4) is protruding outwards the body (2) or it is recessed inwards the body (2). In the preferred embodiment of the invention, the base (4) is protruding outwards the body (2) and it forms the ground of the housing (3). The base (4) is provided on the body (2) parallel to the ground or in an angular way. In the preferred embodiment of the invention, the base (4) is almost parallel to the ground. The base (4) forms the lower surface of the housing (3) and performs carrying. Large part of the EGR cooler (E) weight is carried by the base (4).

In the inventive cylinder block with EGR cooler housing (1), there is a lateral surface connected to the base (4) and angular to the base (4). The lateral surface (5) enables the connection of the EGR cooler (E) to be performed and its weight to be distributed thereon. The lateral surface (S) is on the body (2). In the preferred embodiment of the invention, the base (4) and the lateral surface (S) form the housing (3) together, and the EGR cooler (E) fits into the said housing (3). In this embodiment, the base (4) and the lateral surface (5) are almost vertical to each other (Figure 4). In the inventive cylinder block with EGR cooler (1), there is at least one bearing surface (6). The EGR cooler (£) fits on the bearing surface (6) and its connection is preferably performed through the bearing surface (6). The bearing surface (6) is preferably on the base (4) and/or on the lateral surface (5) within the housing (3). In the preferred embodiment of the invention, some part of the bearing surface (6) is on the base (4) and the other part is on the lateral surface (5) (Figure 4). The angle between the base (4) and the lateral surface (5) is preferably between the parts of the bearing surface (6) and they are preferably same.

The connection of the EGR cooler is performed with the connection hole (7). The connection hole (7) is used in fixing the EGR cooler (E). In the preferred embodiment of the invention, the connection hole (7) is on the base (4) and the lateral surface (5). In this embodiment, the EGR cooler (E) fits on the bearing surface (6) and it is fixed with the connection holes (7) provided on the base (4) and the lateral surface (5). In an alternative embodiment of the invention, the connection hole (7) is on the bearing surface (6) and in this embodiment there are preferably two connection holes (7) on each bearing surface, and the EGR cooler (E) is preferably fixed through the said connection holes (7).

The inventive cylinder block with EGR cooler (1) comprises at least one connecting member (8). After the EGR cooler (E) is placed on the bearing surface (6), it is fixed by being tightened with the connecting member (8) and it is prevented from moving. The connecting member (8) is preferably in form of clamp band, and there is a hole thereon through which the pieces such as bolts, screws and rivets can pass. The holes provided on the connecting member (8) are aligned with the connection holes, tightened with a piece such as bolt, screw, and fixed. In the preferred embodiment of the invention, the connecting member (8) is in shape of a band, and it can be flexed and bent By means of the connecting member (8), the bearing surfaces (6) are covered, and the EGR cooler (E) is tightened and fixed on the bearing surface (6) such that it will not move. By means of the inventive cylinder block with EGR cooler housing (1), the EGR cooler (E) is fixed on the vehicle such that it will not take extra space. The inventive cylinder block with EGR cooler housing (1) preferably comprises a housing (3) formed of combination of the base (4) and the lateral surface (5). There is a bearing surface (6) provided on the base (4) and the lateral surface (5). The bearing surface (6) determines the points where the EGR cooler (E) is to be fixed. There are connection holes (7) on the bearing surface (6) or on the base (4) and the lateral surface (5). The EGR cooler (E) is placed on the bearing surface (6). The holes on the connecting member (8) are aligned with the connection holes (7), and the EGR cooler (E) is fixed. Therefore, the EGR cooler (E) is fixed on a housing (3) formed with the base (4) and the lateral surface (5) on the engine cylinder block body (2). There is no need to separate a space around the engine for the EGR cooler (E) and its connection.

In the preferred embodiment of the invention, the body (2), the base (4), the lateral surface (5) and the bearing surface (6) are preferably casting and uniform. Therefore, all parts are preferably formed together during casting the engine cylinder block.