Mounting component for a pre-chamber component of an internal combustion engine

Description

[0001] The present invention relates to a receiving component for a pre-chamber component of an internal combustion engine with the features of the preamble of claim 1, an arrangement of such a receiving component with a pre-chamber component and an internal combustion engine with such a receiving component.

[0002] Typical receiving components for pre-chamber components of an internal combustion engine include a pre-chamber component receiving area, which pre-chamber component receiving area is configured to receive the pre-chamber component surrounding and / or forming at least a large part of a pre-chamber of the internal combustion engine, and at least one ignition medium receiving area, which is configured to receive an ignition medium – preferably a spark plug – and align it towards the pre-chamber component receiving area. See, for example, CN 104 040 138 A (Hyun Dai Heavy Ind. Co.).

[0003] It is known from the prior art to insert corresponding receiving components, for example in cylinder heads of an internal combustion engine, which serve to receive an ignition medium on the one hand and the component forming the pre-chamber on the other.

[0004] These receiving components are usually made of a steel material and positioned in the cylinder head in such a way that they can dissipate the heat introduced into the receiving component via the pre-chamber and the ignition medium directly to the surrounding cylinder head.

[0005] Designs are also known in which the receiving component is directly surrounded by a cooling medium, for example cooling water, in order to be actively cooled.

[0006] Consequently, the receiving component is required to have the necessary thermal conductivity and / or the ability to transport high thermal energies.

[0007] Accordingly, it is also known to provide receiving components specifically by choosing a material with the best possible thermal conductivity, whereby, for example, embodiments of receiving components made of copper are known, which, however, have not become widespread due to the much higher material prices compared to embodiments made of steel alloys.

[0008] Consequently, the state of the art necessitates a receiving component that improves the heat dissipation of heat energies generated in a pre-chamber or by a spark plug and / or that nevertheless represents an economical and / or resource-saving design variant.

[0009] This problem is solved in the course of the present invention by a receiving component with the features of claim 1, an arrangement of a corresponding receiving component with a pre-chamber component with the features of claim 12 and an internal combustion engine with the features of claim 14.

[0010] According to the invention, a receiving component for a pre-chamber component of an internal combustion engine comprises the following: a pre-chamber component receiving area, which pre-chamber component receiving area is designed to receive the pre-chamber component surrounding and / or forming at least a large part of a pre-chamber of the internal combustion engine, and at least one ignition medium receiving area, which is designed to receive an ignition medium - preferably a spark plug - and to align it in the direction of the pre-chamber component receiving area. wherein the receiving component consists in a first area of ​​a first material and in a second area of ​​a second material, which differs from the first material, wherein the second area at least partially includes the pre-chamber receiving component area.

[0011] By manufacturing the receiving component from two different materials, it is possible to address different requirements in the respective area of ​​the receiving component using a single receiving component.

[0012] Thus, in a second area, which at least partially includes the pre-chamber component receiving area, the increased requirements regarding thermal conductivity can be addressed and this area can be formed by a material that possesses corresponding properties, whereas another (first) area of ​​the receiving component, which is exposed to lower thermal influences, can be formed by a material that has lower thermal conductivity properties, thereby enabling resource-saving action in an economic sense.

[0013] Consequently, according to the invention, a receiving component can be provided in a resource-saving manner, whereby rare and sought-after materials with corresponding properties, which are often associated with elaborate and energy-intensive manufacturing processes, are used sparingly.

[0014] In summary, the present invention can thus provide a receiving component which, despite increased thermal properties with regard to heat dissipation, nevertheless enables an economical and ecological application in manufacturing.

[0015] It may also be intended that the invention finds its use in already known systems of the prior art and corresponding internal combustion engines (as described, for example, in the introduction to the description) and is preferably installed subsequently.

[0016] Internal combustion engines – especially stationary ones – can be used to drive generators for electricity production. Such configurations are often referred to as gensets.

[0017] Internal combustion engines can be understood as thermal working machines in which thermally released energy is converted into mechanical work through combustion, such as in Otto engines, especially gas engines, diesel engines or similar.

[0018] Advantageous embodiments of the invention are defined in the dependent claims.

[0019] Preferably, the first material may be a steel alloy and / or the second material a copper alloy. It may be further specified that the second material is a copper alloy in which copper is the main component.

[0020] A further positive effect has been observed when using a copper alloy as the second material for sealing the pre-chamber component against the receiving component, since the softer properties of a copper alloy – compared to steel, for example – allow for better sealing properties in the pre-chamber component receiving area when connecting to the pre-chamber component, even without the need for separate sealing elements.

[0021] It may be provided that the first area includes at least one ignition medium receiving area and / or, in a received state of the ignition medium, at least partially surrounds the ignition medium.

[0022] Preferably, the receiving component may have at least one supply line, which is designed to supply the pre-chamber and / or the pre-chamber component with fuel, air or a fuel-air mixture, in particular which at least one supply line is arranged at least partially - for example completely - in the second area.

[0023] It may be provided that the receiving component has at least one pre-chamber gas valve sleeve receptacle for receiving a pre-chamber gas valve, which pre-chamber gas valve sleeve receptacle is connected, for example, to the at least one supply line.

[0024] Preferably, it can be provided that the at least one pre-chamber gas valve sleeve receptacle is designed to receive the pre-chamber gas valve, wherein the at least one supply line branches off directly from the at least one pre-chamber gas valve sleeve receptacle and the at least one supply line is designed to supply fuel, air or fuel-air mixture provided from a pre-chamber gas valve positioned in the at least one pre-chamber gas valve sleeve receptacle to the pre-chamber component receiving area, via which the fuel, air or fuel-air mixture can be supplied to a pre-chamber.

[0025] It may be provided that the receiving component with the pre-chamber component receiving area is designed to jointly limit and thus form the pre-chamber of the internal combustion engine together with the pre-chamber component.

[0026] Preferably, it can be provided that the at least one ignition device receiving area connects an area of ​​the ignition device receiving area with the pre-chamber component receiving area and is designed such that the ignition device can be arranged substantially in the area for receiving the ignition device, so that an ignition area of ​​the ignition device is aligned through the at least one ignition device receiving area to the pre-chamber component receiving area in order to be able to carry out ignition in the pre-chamber.

[0027] It may be provided that the receiving component has an outer wall of an essentially cylindrical basic shape, which is designed to be inserted into a cylinder head of the internal combustion engine.

[0028] Preferably, the receiving component may have a sleeve-shaped basic structure that surrounds the pre-chamber component receiving area and the at least one ignition medium receiving area.

[0029] It can be provided that the at least one ignition medium receiving area connects the, preferably sleeve-shaped, pre-chamber component receiving area of ​​the receiving component with a, preferably sleeve-shaped, area of ​​the receiving component which, in a received state of the ignition medium, at least partially surrounds the ignition medium.

[0030] Preferably, the first area and the second area are formed by two components which are joined to the receiving component by a joining process – preferably a friction welding process. Other joining processes, such as other welding or brazing processes, in particular hard brazing, are also conceivable.

[0031] Furthermore, protection is sought for an arrangement of a pre-chamber component and a receiving component according to the invention, wherein the pre-chamber component is connected to the receiving component via the pre-chamber component receiving area of ​​the receiving component, preferably welded, wherein the receiving component and the pre-chamber component at least partially form a pre-chamber of the internal combustion engine.

[0032] The pre-chamber component can be cap-shaped, with the opening being closed off by the pre-chamber component receiving area of ​​the receiving component.

[0033] Preferably, the pre-chamber component may have at least one, preferably a plurality of, overflow openings which connect the pre-chamber with the pre-chamber environment (in the installed state of the pre-chamber in the internal combustion engine with a combustion chamber of the internal combustion engine).

[0034] It can be provided that an ignition means, in particular a spark plug, is arranged in at least one ignition means receiving area, preferably wherein an ignition area of ​​the ignition means projects through the at least one ignition means receiving area of ​​the receiving component into the pre-chamber.

[0035] Furthermore, protection is sought for an internal combustion engine, in particular a gas-powered reciprocating engine with a receiving component according to the invention and / or an arrangement of a pre-chamber component with a receiving component according to the invention.

[0036] Further advantages and details of the invention will become apparent from the figures and the accompanying figure description. These show: Fig. 1 shows an installation position of a receiving component in a cylinder head of an internal combustion engine, and Figs. 2 to 4 show a receiving component according to a first embodiment of the invention.

[0037] Fig. 1shows an installation position of a receiving component 1 in a cylinder head 12 of an internal combustion engine 3.

[0038] The receiving component 1, with its cylindrical basic structure, is inserted into a corresponding opening of a cylinder head 12 of the internal combustion engine 3.

[0039] In a pre-chamber component receiving area 4 of the receiving component 1, the pre-chamber component 2 is placed, which supports the receiving component 1 in the direction of a combustion chamber 13 opposite the cylinder head 12.

[0040] The receiving component 1 also has an ignition medium receiving area 6, which is designed as a threaded area.

[0041] In this ignition receiving area 6, an ignition medium - in this embodiment a spark plug - can be inserted, which projects through the ignition receiving area 6 into the pre-chamber 5.

[0042] The pre-chamber 5 is surrounded on the one hand by the pre-chamber component 2 and on the other hand by the receiving component 1 in the area of ​​the pre-chamber component receiving area 4 and is thus formed.

[0043] Furthermore, the receiving component 1 has a pre-chamber gas valve sleeve receptacle 10 in which the pre-chamber gas valve 11 is arranged via the pre-chamber gas valve sleeve 14.

[0044] The receiving component 1, the pre-chamber component 2, as well as the pre-chamber gas valve sleeve 14 and the pre-chamber gas valve 11 can be cooled by a cooling medium via the cooling channel 15 of the cylinder head 12, which allows for active cooling of these components.

[0045] To seal the cooling channel 15 against the environment, the respective components are sealed against the cylinder head 12 by means of individual seals designed as O-rings.

[0046] During operation of the internal combustion engine 3, air, fuel or an air-fuel mixture is supplied to the prechamber 15 via the prechamber gas valve 11 and the supply line 9 of the receiving component 1, which is then ignited by an ignition medium arranged in the ignition medium receiving area 6 and burns in the prechamber 5.

[0047] Through combustion in the pre-chamber 5 (especially the expansion caused by combustion), so-called ignition flares are transferred via the transfer channels 16 of the pre-chamber component 2 into the combustion chamber 13 of the internal combustion engine 3, which stimulate combustion in the combustion chamber 13.

[0048] Corresponding pre-chamber concepts in internal combustion engines are used as "ignition amplifiers" according to the state of the art. Such ignition amplifiers are primarily used in internal combustion engines with large combustion chambers (from approximately 2.5 liters).

[0049] The Figures 2 to 4show an embodiment of a receiving component 1 according to a first embodiment of the invention, wherein the Fig. 2 represents a section along the longitudinal axis and Fig. 3 a perspective view of the Fig. 2 .

[0050] Fig. 4 Figure 1 shows a detailed view of the end of the receiving component 1 facing the combustion chamber 13 in an installed state of the receiving component 1 in an internal combustion engine 3.

[0051] The receiving component of the exemplary embodiment of the Figs. 2 to 4 has a pre-chamber component receiving area 4, which pre-chamber component receiving area 4 is designed to receive the pre-chamber component 2.

[0052] This pre-chamber component receiving area 4, together with the pre-chamber component 2, at least partially forms the pre-chamber 5.

[0053] The pre-chamber component receiving area 4 is connected to the pre-chamber gas valve sleeve receiving area 10 of the receiving component 1 via the supply line 9 of the receiving component 1.

[0054] The prechamber gas valve sleeve receptacle 10 can accommodate a prechamber gas valve 11, through which air, fuel or an air-fuel mixture can be supplied to the prechamber 5 via the supply line 9.

[0055] Furthermore, the receiving component 1 of this embodiment has an ignition medium receiving area 6, which ignition medium receiving area 6 is designed to receive an ignition medium - in this embodiment a spark plug - and to align it in the direction of the pre-chamber component receiving area 4.

[0056] In other words, a spark plug is screwed into the threaded ignition receiving area 6, so that the spark plug protrudes through the ignition receiving area 6 into the pre-chamber 5 and thus the electrodes of the spark plug are positioned in the pre-chamber 5, while the pre-chamber 5 and the pre-chamber component receiving area 4 are sealed at the top via the spark plug itself.

[0057] In one end of the receiving component 1, which is facing away from the combustion chamber 13, the ignition means - the spark plug - is enclosed by the receiving component in a rotational manner.

[0058] In this embodiment, the receiving component 1 is formed by a first area 7 and a second area 8, which are represented by different lines for clarity, even though these areas 7, 8 are part of a single common component, the receiving component 1.

[0059] The first area 7 of this embodiment includes the pre-chamber component receiving area 4, the feed line 9, part of the ignition medium receiving area 6 and also part of the pre-chamber gas valve sleeve receiving area 10.

[0060] This first area 7 of this embodiment is formed by a first material which is a copper alloy.

[0061] This copper alloy has increased thermal conductivity, so that these components of the receiving component 1, which are subjected to high thermal stress during combustion, can dissipate the heat energy to the surrounding cylinder head 12 and / or the cooling medium supplied to the receiving component due to the improved thermal conductivity.

[0062] The second area 8 is formed by a second material that differs from the first material. In this embodiment, the second area 8 is made of a steel alloy.

[0063] The first area 7 and the second area 8 are implemented for production by means of two separate components, which are joined together to form the receiving component 1 during the manufacturing process by means of a friction welding process. Reference symbol list:

[0064] 1 Mounting component 2 Pre-chamber component 3 Internal combustion engine 4 Pre-chamber component mounting area 5 Pre-chamber 6 Ignition medium mounting area 7 First area 8 Second area 9 Supply line 10 Pre-chamber gas valve sleeve mounting 11 Pre-chamber gas valve 12 Cylinder head 13 Combustion chamber 14 Pre-chamber gas valve sleeve 15 Cooling channel 16 Transfer channel

Claims

1. A mounting component for a pre-chamber component (2) of a combustion engine (3), comprising: - a pre-chamber component mounting region (4), which pre-chamber component mounting region (4) is designed to receive the pre-chamber component (2) surrounding and / or forming at least a large part of a pre-chamber (5) of the combustion engine (3), and - at least one ignition means mounting region (6), which at least one ignition means mounting region (6) is designed to receive an ignition means and align it in the direction of the pre-chamber component mounting region (4), characterized in that the mounting component (1) consists in a first region (7) of a first material and in a second region (8) of a second material which differs from the first material, wherein the second region (8) at least partially contains the pre-chamber component mounting region (4).

2. The mounting component according to claim 1, wherein the first material is implemented as a steel alloy and / or the second material is implemented as a copper alloy.

3. The mounting component according to any one of the preceding claims, wherein the first region (7) contains the at least one ignition means mounting region (6) and / or in a mounted state of the ignition means, at least partially surrounds the ignition means.

4. The mounting component according to at least one of the preceding claims, wherein the mounting component (1) has at least one supply line ( 9), which at least one supply line (9) is designed to supply the pre-chamber (5) and / or the pre-chamber component (2) with a fuel, air or a fuel-air mixture and which at least one supply line (9) is arranged at least partially in the second region (8).

5. The mounting component according to at least one of the preceding claims, wherein the mounting component (1) has at least one pre-chamber gas valve sleeve receptacle (10) for mounting a pre-chamber gas valve (11).

6. The mounting component according to at least one of the preceding claims, wherein the mounting component (1) with the pre-chamber component mounting region (4) is designed to jointly define and thus form the pre-chamber (5) of the combustion engine (3) together with the pre-chamber component (2).

7. The mounting component according to at least one of the preceding claims, wherein the at least one ignition means mounting region (6) connects a region for mounting the ignition means with the pre-chamber component mounting region (4) and is designed such that the ignition means can be arranged substantially in the region for mounting the ignition means, so that an ignition region of the ignition means is aligned through the at least one ignition means mounting region (6) to the pre-chamber component mounting region (4) in order to be able to carry out ignition in the pre-chamber (5).

8. The mounting component according to at least one of the preceding claims, wherein the mounting component (1) has an outer wall of a substantially cylindrical base shape, which is designed to be inserted into a cylinder head (12) of the combustion engine (3).

9. The mounting component according to at least one of the preceding claims, wherein the mounting component (1) has a sleeve-shaped base structure which surrounds the pre-chamber component mounting region (4) and the at least one ignition means mounting region (6).

10. The mounting component according to the preceding claim, wherein the at least one ignition means mounting region (6) connects the pre-chamber component mounting region (4) of the mounting component (1) with a region of the mounting component (1) which, in a mounted state of the ignition means, at least partially surrounds the ignition means.

11. The mounting component according to at least one of the preceding claims, wherein the first region (7) and the second region (8) are formed by two components which are materially connected to the mounting component (1) via a connection method.

12. An arrangement of a pre-chamber component (2) and a mounting component (1) according to at least one of the preceding claims, wherein the pre-chamber component (2) is connected to the mounting component (1) via the pre-chamber component mounting region (4) of the mounting component (1), wherein a pre-chamber (5) of the combustion engine (3) is at least partially formed by the mounting component (1) and the pre-chamber component (2).

13. The arrangement according to the preceding claim, wherein an ignition means is arranged in at least one ignition means mounting region (6).

14. A combustion engine with a mounting component (1) according to at least one of claims 1 to 11 and / or an arrangement of a pre-chamber component (2) and a mounting component (1) according to any one of claims 12 or 13.