阅读说明：本技术 一种柴油机缸盖及柴油机 (diesel engine cylinder cover and diesel engine ) 是由 王传娟 于 2019-10-14 设计创作，主要内容包括：本发明属于柴油机技术领域,公开了一种柴油机缸盖及柴油机,其包括缸盖本体,在缸盖本体顶面上一体设有零部件安装孔系、滑油孔和滑油回油孔,在缸盖本体底面上一体设有多流体接口,零部件安装孔系包括喷油器安装孔,喷油器安装孔用于安装喷油器,竖直贯通于缸盖本体,喷油器安装孔为阶梯孔,能够与喷油器形成多个单独油腔,多流体接口包括滑油入口和滑油出口,滑油入口分别连通于滑油孔和一个油腔的孔壁,滑油孔流出的液体能够流入滑油回油孔,滑油回油孔连通于滑油出口。本发明提出的柴油机缸盖及柴油机,将多种管路集成于缸盖本体内部,各种管路的连接可随缸盖安装一体式完成,操作简单,节约成本。(The invention belongs to the technical field of diesel engines, and discloses a diesel engine cylinder cover and a diesel engine, which comprise a cylinder cover body, wherein a part mounting hole system, a lubricating oil hole and a lubricating oil return hole are integrally arranged on the top surface of the cylinder cover body, a multi-fluid interface is integrally arranged on the bottom surface of the cylinder cover body, the part mounting hole system comprises an oil injector mounting hole, the oil injector mounting hole is used for mounting an oil injector and vertically penetrates through the cylinder cover body, the oil injector mounting hole is a stepped hole and can form a plurality of independent oil cavities together with the oil injector, the multi-fluid interface comprises a lubricating oil inlet and a lubricating oil outlet, the lubricating oil inlet is respectively communicated with the lubricating oil hole and the hole wall of one oil cavity, liquid flowing out of the lubricating oil hole can flow into the lubricating oil return hole, and the. According to the diesel engine cylinder cover and the diesel engine, various pipelines are integrated in the cylinder cover body, the connection of various pipelines can be integrally completed along with the installation of the cylinder cover, the operation is simple, and the cost is saved.)

1. A cylinder cover of a diesel engine is characterized by comprising a cylinder cover body (1), wherein a part mounting hole system (2), an oil lubrication hole (4) and an oil lubrication oil return hole (5) are integrally arranged on the top surface of the cylinder cover body (1), and a multi-fluid interface (3) is integrally arranged on the bottom surface of the cylinder cover body (1);

The part mounting hole system (2) comprises an oil sprayer mounting hole (21), the oil sprayer mounting hole (21) is used for mounting an oil sprayer and vertically penetrates through the cylinder cover body (1), and the oil sprayer mounting hole (21) is a stepped hole and can form a plurality of independent oil cavities together with the oil sprayer;

The multi-fluid interface (3) comprises a lubricating oil inlet (32) and a lubricating oil outlet (35), the lubricating oil inlet (32) is respectively communicated with the lubricating oil hole (4) and one hole wall of the oil cavity, lubricating oil flowing out of the lubricating oil hole (4) can flow into the lubricating oil return hole (5), and the lubricating oil return hole (5) is communicated with the lubricating oil outlet (35).

2. The diesel engine cylinder head as set forth in claim 1, characterized in that the multi-fluid interface (3) further comprises a control air inlet (33) and a starting air inlet (34), and the component mounting hole series (2) further comprises a starting valve mounting hole (22);

The starting valve mounting hole (22) is used for mounting a starting valve and vertically penetrates through the cylinder cover body (1), a first vent hole and a second vent hole are formed in the hole wall of the starting valve mounting hole (22), the first vent hole is located above the second vent hole, the control air inlet (33) is communicated with the first vent hole, and the starting air inlet (34) is communicated with the second vent hole.

3. The cylinder cover of the diesel engine as claimed in claim 2, wherein the oil chambers are sequentially a lubricating oil chamber (211), a mixed oil chamber (212), a fuel oil return chamber (213) and an injector oil inlet chamber (214) from top to bottom, and the lubricating oil inlet (32) is communicated with the wall of the lubricating oil chamber (211);

the multi-fluid interface (3) further comprises a mixed oil return port (31), an oil injector return port (36) and a fuel oil return port (37), the mixed oil return port (31) is communicated with the hole wall of the mixed oil cavity (212), the oil injector return port (36) is communicated with the hole wall of the oil injector oil inlet cavity (214), and the fuel oil return port (37) is communicated with the hole wall of the fuel oil return cavity (213).

4. A diesel engine cylinder head according to claim 3, characterized in that the injector mounting hole (21) is provided in a central position of the top of the cylinder head body (1).

5. The diesel engine cylinder head according to claim 4, characterized in that an oil groove (6) is further integrally formed on the top surface of the cylinder head body (1);

Spare part mounting hole system (2) still include two discharge valve mounting holes (23) and two admission valve mounting holes (24), two discharge valve mounting hole (23) and two admission valve mounting hole (24) are all vertical link up in cylinder cap body (1), set up in sprayer mounting hole (21) all around, discharge valve mounting hole (23) with admission valve mounting hole (24) are passed through oil groove (6) communicate together, discharge valve mounting hole (23) are used for installing discharge valve, admission valve mounting hole (24) are used for installing the admission valve.

6. Diesel engine cylinder head according to claim 5, characterised in that the oil return hole (5) is located in the oil sump (6).

7. The diesel engine cylinder head according to claim 6, characterized in that the component mounting hole system (2) further comprises a plurality of rocker arm seat mounting holes (25), the rocker arm seat mounting holes (25) are used for mounting rocker arm seats, and the injector mounting holes (21), the starting valve mounting holes (22), the exhaust valve mounting holes (23), the intake valve mounting holes (24), the lubricating oil holes (4) and the lubricating oil return holes (5) are all located in a range surrounded by the plurality of rocker arm seat mounting holes (25).

8. The diesel engine cylinder head as set forth in claim 7, characterized in that the component mounting hole system (2) further comprises a sensor mounting hole (26), the sensor mounting hole (26) penetrates the cylinder head body (1) and is located outside a range surrounded by the plurality of rocker arm seat mounting holes (25), and the sensor mounting hole (26) is used for mounting a cylinder pressure sensor.

9. The diesel engine cylinder head according to claim 8, characterized in that the plane in which the lubricating oil hole (4) opens is higher in the vertical direction than the planes in which the exhaust valve mounting hole (23), the intake valve mounting hole (24), the injector mounting hole (21), and the starting valve mounting hole (22) open.

10. a diesel engine comprising a diesel engine cylinder head according to any of claims 1 to 9.

Technical Field

The invention belongs to the technical field of diesel engines, and particularly relates to a diesel engine cylinder cover and a diesel engine.

Background

The cylinder cover is one of the main parts of the diesel engine, not only forms a combustion chamber together with a cylinder sleeve piston to bear the mechanical load and high thermal load of cyclic reciprocation, but also needs to be used as an installation base body of other parts, such as a valve actuating mechanism, an oil sprayer, a starting valve, a power indicating valve, a safety valve, a micro-spray oil sprayer, a cylinder pressure sensor and the like. Various pipe systems such as a starting air pipe, a control air pipe, lubricating oil, a fuel oil inlet pipe, an oil return pipe, a sump oil discharge pipe and the like need to be arranged and connected around the cylinder cover.

At present, the pipelines are arranged around the cylinder cover in a complex and complicated mode, the number and the connecting joints are large, disassembly and assembly and maintenance are not convenient, a large amount of labor is consumed for assembly and disassembly, strict requirements are further provided for the operation space around the cylinder cover, and adverse effects are brought to the cylinder diameter reducing design and the compact arrangement of the diesel engine.

Therefore, a cylinder head of a diesel engine and a diesel engine are needed to solve the above technical problems.

disclosure of Invention

The invention aims to provide a cylinder cover of a diesel engine, which integrates various pipelines into a cylinder cover body, can be integrally installed along with the cylinder cover in connection, is simple to operate and saves cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a diesel engine cylinder head comprising:

The cylinder cover comprises a cylinder cover body, wherein a part mounting hole system, an oil lubricating hole and an oil lubricating oil return hole are integrally formed in the top surface of the cylinder cover body, and a multi-fluid interface is integrally formed in the bottom surface of the cylinder cover body;

The part mounting hole system comprises an oil sprayer mounting hole, the oil sprayer mounting hole is used for mounting an oil sprayer and vertically penetrates through the cylinder cover body, and the oil sprayer mounting hole is a stepped hole and can form a plurality of independent oil cavities together with the oil sprayer;

the multi-fluid interface comprises a lubricating oil inlet and a lubricating oil outlet, the lubricating oil inlet is respectively communicated with the lubricating oil hole and the hole wall of one oil cavity, lubricating oil flowing out of the lubricating oil hole can flow into the lubricating oil return hole, and the lubricating oil return hole is communicated with the lubricating oil outlet.

preferably, the multi-fluid interface further comprises a control air inlet and a priming air inlet, and the component mounting hole system further comprises a priming valve mounting hole;

The cylinder cover comprises a cylinder cover body, a starting valve mounting hole, a control air inlet, a starting air inlet, a first vent hole, a second vent hole, a control air inlet and a starting air inlet, wherein the starting valve mounting hole is used for mounting a starting valve and vertically penetrates through the cylinder cover body, the hole wall of the starting valve mounting hole is provided with the first vent hole and the second vent hole, the first vent hole is located above the second vent hole, the control air inlet is communicated with the.

Preferably, the oil cavities are sequentially provided with a lubricating oil cavity, a mixed oil cavity, a fuel oil return cavity and an oil inlet cavity of an oil sprayer from top to bottom, and the lubricating oil inlet is communicated with the hole wall of the lubricating oil cavity;

The multi-fluid interface further comprises a mixed oil return port, an oil sprayer return port and a fuel oil return port, the mixed oil return port is communicated with the hole wall of the mixed oil cavity, the oil sprayer return port is communicated with the hole wall of the oil inlet cavity of the oil sprayer, and the fuel oil return port is communicated with the hole wall of the fuel oil return cavity.

preferably, the injector mounting hole is provided at a central position of the top of the cylinder head body.

Preferably, an oil groove is further integrally formed in the top surface of the cylinder cover body;

the part mounting hole system further comprises two exhaust valve mounting holes and two air inlet valve mounting holes, wherein the two exhaust valve mounting holes and the two air inlet valve mounting holes are vertically communicated with the cylinder cover body, the periphery of the oil sprayer mounting hole is provided with the exhaust valve mounting holes, the exhaust valve mounting holes and the air inlet valve mounting holes are communicated with the oil grooves together, the exhaust valve mounting holes are used for mounting exhaust valves, and the air inlet valve mounting holes are used for mounting air inlet valves.

Preferably, the oil return hole is located in the oil groove.

Preferably, the component mounting hole system further includes a plurality of rocker arm seat mounting holes, the rocker arm seat mounting holes are used for mounting rocker arm seats, and the fuel injector mounting holes, the starting valve mounting holes, the exhaust valve mounting holes, the intake valve mounting holes, the lubricating oil holes and the lubricating oil return holes are all located in a range surrounded by the rocker arm seat mounting holes.

Preferably, the component mounting hole system further comprises a sensor mounting hole, the sensor mounting hole penetrates through the cylinder head body and is located outside a range surrounded by the plurality of rocker arm seat mounting holes, and the sensor mounting hole is used for mounting a cylinder pressure sensor.

Preferably, a plane on which the oil lubrication hole opens is vertically higher than a plane on which the exhaust valve mounting hole, the intake valve mounting hole, the injector mounting hole, and the starting valve mounting hole open.

the invention further aims to provide the diesel engine, wherein various pipelines are integrated in the cylinder cover body, the connection of various pipelines can be integrally completed along with the installation of the cylinder cover, the operation is simple, and the cost is saved.

In order to achieve the purpose, the invention adopts the following technical scheme:

A diesel engine comprises the diesel engine cylinder cover.

The invention has the advantages of

The invention provides a cylinder cover of a diesel engine and the diesel engine, wherein various pipeline interfaces are arranged on a cylinder cover body, pipeline outlets are integrated in the vertical direction of the cylinder cover body, and the pipeline interfaces are communicated with the corresponding outlets through pipelines in the cylinder cover body, so that the functions of various pipelines are realized. According to the cylinder cover of the diesel engine and the diesel engine, provided by the invention, various pipelines are integrated in the cylinder cover, and parts such as pipe joints and the like are omitted, so that the connection of various pipelines can be integrally completed along with the installation of the cylinder cover, the number of parts on the cylinder cover is simplified, the compact design of a large-scale diesel engine is realized, the subsequent operation of connecting pipelines on the surface of the cylinder cover is omitted, and the cost is saved.

drawings

FIG. 1 is a schematic structural diagram of a first view angle of a cylinder head of a diesel engine provided by an embodiment of the invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

Fig. 3 is a schematic structural diagram of a second viewing angle of a cylinder head of a diesel engine provided in an embodiment of the present invention.

in the figure:

1. A cylinder head body; 2. a component mounting hole system; 3. a multi-fluid interface; 4. a lubricating oil hole; 5. a lubricating oil return hole; 6. an oil sump; 7. bolt holes;

21. A fuel injector mounting hole; 22. a starting valve mounting hole; 23. an exhaust valve mounting hole; 24. an air inlet valve mounting hole; 25. a rocker arm seat mounting hole; 26. a sensor mounting hole; 31. a mixed oil return port; 32. a lubricant inlet; 33. controlling the air inlet; 34. a start air inlet; 35. a lubricant outlet; 36. an oil return port of the oil injector; 37. a fuel return port;

211. An oil gallery; 212. a mixed oil chamber; 213. a fuel return chamber; 214. and an oil inlet cavity of the oil sprayer.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

in the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 3, the present embodiment provides a cylinder head of a diesel engine, which includes a cylinder head body 1, a component mounting hole system 2, an oil lubrication hole 4 and an oil return hole 5 are integrally formed on a top surface of the cylinder head body 1, and a multi-fluid interface 3 is integrally formed on a bottom surface of the cylinder head body 1; the part mounting hole system 2 comprises an oil sprayer mounting hole 21, the oil sprayer mounting hole 21 is used for mounting an oil sprayer and vertically penetrates through the cylinder cover body 1, the oil sprayer mounting hole 21 is a stepped hole, and a plurality of stepped hole walls with different radiuses and the oil sprayer form a plurality of independent oil cavities; the multi-fluid interface 3 comprises a lubricating oil inlet 32 and a lubricating oil outlet 35, wherein the lubricating oil inlet 32 is respectively communicated with the lubricating oil hole 4 and the hole wall of an oil cavity, lubricating oil flowing out of the lubricating oil hole 4 can flow into a lubricating oil return hole 5, and the lubricating oil return hole 5 is communicated with the lubricating oil outlet 35.

the diesel engine cylinder cap that this embodiment provided, various pipeline interfaces set up on cylinder cap body 1, and the pipeline export is integrated in cylinder cap body 1's vertical direction, and pipeline interface and corresponding export intercommunication are realized to the pipeline through cylinder cap body 1 inside pipeline, the function of various pipelines. The diesel engine cylinder cap that this embodiment provided, with multiple pipeline integration inside cylinder cap body 1, spare parts such as cancellation pipe connector for the connection of various pipelines can be accomplished along with cylinder cap installation integral type, simplifies spare part quantity on the cylinder cap, realizes large-scale diesel engine's compactness design, has cancelled follow-up operation at cylinder cap surface connecting tube, practices thrift the cost.

Specifically, the multi-fluid interface 3 further includes a control air inlet 33 and a starting air inlet 34, the component mounting hole system 2 further includes a starting valve mounting hole 22, the starting valve mounting hole 22 is used for mounting a starting valve and vertically penetrates through the cylinder head body 1, a first vent hole and a second vent hole are formed in a hole wall of the starting valve mounting hole 22, the first vent hole is located above the second vent hole, the control air inlet 33 is communicated with the first vent hole, and the starting air inlet 34 is communicated with the second vent hole. After the trigger valve is installed in the trigger valve installation hole 22, the trigger valve divides the air chamber into two parts, the upper part is a control air area, the lower part is a starting air area, control air flows into the control air area from the control air inlet 33 through the first vent, and starting air flows into the starting air area from the starting air inlet 34 through the second vent.

In order to ensure the implementation of the functions of the parts on the cylinder cover body 1 and realize the lubrication of the moving surfaces between the parts, the supply of lubricating oil and fuel oil needs to be ensured, and an oil inlet channel and an oil return channel need to be arranged. The plurality of single oil chambers in the embodiment are sequentially a lubricating oil chamber 211, a mixed oil chamber 212, a fuel oil return chamber 213 and an oil inlet chamber 214 of an oil injector from top to bottom, and the lubricating oil inlet 32 is communicated with the hole wall of the lubricating oil chamber 211; the multi-fluid interface 3 further comprises a mixed oil return port 31, an injector return port 36 and a fuel oil return port 37, wherein the mixed oil return port 31 is communicated with the hole wall of the mixed oil cavity 212, the injector return port 36 is communicated with the hole wall of the injector oil inlet cavity 214, and the fuel oil return port 37 is communicated with the hole wall of the fuel oil return cavity 213.

Optionally, the fuel injector mounting hole 21 is formed in the center of the top of the cylinder cover body 1, so that the reasonability of mounting of other parts can be guaranteed, and the cylinder cover is simpler and more compact.

Specifically, still an organic whole is equipped with oil groove 6 on 1 top surface of cylinder cap body, and spare part mounting hole system 2 still includes two discharge valve mounting holes 23 and two admission valve mounting holes 24, and two discharge valve mounting holes 23 and two admission valve mounting holes 24 are all vertical to be link up in cylinder cap body 1, set up around sprayer mounting hole 21, and discharge valve mounting hole 23 and admission valve mounting hole 24 communicate together through oil groove 6, and discharge valve mounting hole 23 is used for installing discharge valve, and admission valve mounting hole 24 is used for installing the admission valve.

in order to ensure that the return oil flows into the return oil hole 5, the return oil hole 5 is located in the oil groove 6.

More specifically, the component mounting hole system 2 further includes a plurality of rocker arm seat mounting holes 25, the rocker arm seat mounting holes 25 are used for mounting rocker arms, and the injector mounting holes 21, the starting valve mounting holes 22, the exhaust valve mounting holes 23, the intake valve mounting holes 24, the lubricating oil holes 4, and the lubricating oil return holes 5 are all located within a range surrounded by the plurality of rocker arm seat mounting holes 25. The rocker arm seat is used for mounting the rocker arm mechanism, lubricating oil flowing out of the lubricating oil hole 4 enters the surface of a motion pair of the rocker arm mechanism through the rocker arm seat for lubrication and drips from the rocker arm mechanism to lubricate parts in the rocker arm seat, and the lubricating oil is converged into the top surface oil groove 6 and then flows into the lubricating oil return hole 5.

Optionally, the component mounting hole system 2 further includes a sensor mounting hole 26, the sensor mounting hole 26 penetrates through the cylinder head body 1 and is located outside a range surrounded by the plurality of rocker arm seat mounting holes 25, and the sensor mounting hole 26 is used for mounting the cylinder pressure sensor.

Specifically, the plane on which the lubricating oil hole 4 opens is higher in the vertical direction than the planes on which the exhaust valve mounting hole 23, intake valve mounting hole 24, injector mounting hole 21 and starting valve mounting hole 22 open.

specifically, the cylinder cover body 1 is further integrally provided with a plurality of bolt holes 7, and the bolt holes 7 are used for installing the cylinder cover body 1 on a diesel engine cylinder. When a plurality of interfaces of the multi-fluid interface 3 are connected with the corresponding joints, O-shaped rings are used for sealing, and when the other installation interfaces are installed, screw plugs and gaskets are used for sealing.

This embodiment has still provided a diesel engine, it includes an above-mentioned diesel engine cylinder cap, set up various pipeline interfaces on cylinder cap body 1, pipeline export is integrated in cylinder cap body 1's vertical direction, pipeline interface and corresponding export intercommunication through the inside pipeline of cylinder cap body 1, realize the function of various pipelines, spare parts such as cancellation pipe connector, make the connection of various pipelines can be accomplished along with cylinder cap installation integral type, simplify spare part quantity on the cylinder cap, realize large-scale diesel engine's compactness design, follow-up operation at cylinder cap surface connecting tube has been cancelled, and the cost is saved.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.