CN213711194U - Diesel engine cylinder cover, diesel engine and ship - Google Patents
Diesel engine cylinder cover, diesel engine and ship Download PDFInfo
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- CN213711194U CN213711194U CN202022658725.3U CN202022658725U CN213711194U CN 213711194 U CN213711194 U CN 213711194U CN 202022658725 U CN202022658725 U CN 202022658725U CN 213711194 U CN213711194 U CN 213711194U
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Abstract
The utility model discloses a diesel engine cylinder head, diesel engine and boats and ships relates to marine diesel engine technical field. The cylinder cover of the diesel engine comprises a cylinder cover body, wherein a first mounting hole is formed in the center of the cylinder cover body and used for mounting a central fuel injector; the two sides of the width direction of the cylinder cover body are respectively provided with a boss, the boss is provided with second mounting holes, the axes of the two second mounting holes are arranged at included angles with the axis of the first mounting hole, the second mounting holes are used for mounting side oil sprayers, and the side oil sprayers can be fixedly connected with the bosses. Compared with the prior art that only one oil sprayer can be installed, the cylinder cover of the diesel engine can also be simultaneously provided with two side oil sprayers, multiple times of injection of multiple oil sprayers can be realized, in-cylinder combustion can be improved, energy is saved, and environmental pollution is reduced.
Description
Technical Field
The utility model relates to a marine diesel engine technical field especially relates to a diesel engine cylinder head, diesel engine and boats and ships.
Background
The diesel engine is the main power of ships in China, but due to the reasons of technology, oil quality and the like, the problems of energy consumption and emission are very serious, emission regulations and energy efficiency indexes are increasingly strict, and the engine with the emission not reaching the standard cannot be used for loading on a ship. The combustion technology is a core technology for improving the emission and energy consumption of the marine diesel engine, and is a key technology for improving the market competitiveness of the marine diesel engine. At present, most cylinder covers of medium-high speed diesel engines for ships in the prior art can only be provided with one fuel injector, so that insufficient combustion in cylinders is caused, and environmental pollution and energy shortage are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a diesel engine cylinder head, diesel engine and boats and ships can install a plurality of sprayer, improve the in-cylinder burning, and the energy saving just can reduce environmental pollution.
To achieve the purpose, the utility model adopts the following technical proposal:
a diesel engine cylinder head comprising:
the fuel injector mounting structure comprises a cylinder cover body, wherein a first mounting hole is formed in the center of the cylinder cover body and used for mounting a central fuel injector; the cylinder cover comprises a cylinder cover body and is characterized in that bosses are arranged on two sides of the width direction of the cylinder cover body respectively, second mounting holes are formed in the bosses, the axes of the second mounting holes and the axes of the first mounting holes form included angles, the second mounting holes are used for mounting side oil sprayers, and the side oil sprayers can be fixedly connected with the bosses.
Optionally, the second mounting hole is a stepped hole.
Optionally, the boss is further provided with a plurality of connecting holes arranged at intervals, and the side oil injector can be fixedly connected with the connecting holes through fasteners.
Optionally, a first through hole is formed in the side wall of the boss (12), and the first through hole is communicated with the second mounting hole and is used for introducing lubricating oil into the side oil injector.
Optionally, a fuel oil channel is arranged in the boss, and one end of the fuel oil channel is communicated with the second mounting hole and is used for introducing high-pressure fuel oil into the side oil injector.
Optionally, a second through hole is formed in the bottom wall of the boss, the second through hole is communicated with the fuel oil channel, and the second through hole is used for leaking the high-pressure fuel oil in the fuel oil channel.
Optionally, the side wall of the boss is further provided with a third through hole, the third through hole is communicated with the second mounting hole, and the high-pressure fuel can flow out of the third through hole.
Optionally, the first mounting hole is a stepped hole.
A diesel engine comprises the diesel engine cylinder cover.
A ship comprises the diesel engine.
The utility model has the advantages that: the utility model provides a diesel engine cylinder head is provided with first mounting hole at the center of cylinder cap body for installation center sprayer, and be provided with a boss respectively in the width direction's of cylinder cap body both sides, be provided with the second mounting hole on the boss, the second mounting hole is used for installing side sprayer, compare and can only install a sprayer among the prior art, this diesel engine cylinder head can also install two side sprayers simultaneously, can realize many sprayers and spout many times, can improve the burning in the jar, energy saving and reduction environmental pollution.
Drawings
Fig. 1 is a schematic structural diagram of a first view angle of a cylinder head of a diesel engine according to an embodiment of the present invention;
fig. 2 is a top view of a cylinder head of a diesel engine according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second view angle of the cylinder head of the diesel engine according to the embodiment of the present invention;
fig. 4 is a sectional view taken in the direction of a-a in fig. 3.
In the figure:
1-a cylinder cover body; 11-a first mounting hole; 12-a boss; 121-a second mounting hole; 122-connecting hole; 123-a first via; 124-fuel channel; 125-a second via; 126-third via.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. 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 solution of the present invention will be further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-4, the cylinder head of the diesel engine comprises a cylinder head body 1, wherein a first mounting hole 11 is formed in the center of the cylinder head body 1, and the first mounting hole 11 is used for mounting a central fuel injector; the two sides in the width direction of the cylinder cover body 1 are respectively provided with a boss 12, the boss 12 is provided with a second mounting hole 121, the axes of the two second mounting holes 121 are arranged at an included angle with the axis of the first mounting hole 11, the second mounting hole 121 is used for mounting a side oil sprayer, and the side oil sprayer can be fixedly connected with the boss 12. It can be understood that the center of the cylinder cover body 1 is provided with the first mounting hole 11 for installing a central oil sprayer, the two sides of the width direction of the cylinder cover body 1 are respectively provided with the boss 12, the boss 12 is provided with the second mounting hole 121, the second mounting hole 121 is used for installing a side oil sprayer, compared with the prior art, only one oil sprayer can be installed, the cylinder cover of the diesel engine can also be provided with two side oil sprayers simultaneously, multiple times of spraying of multiple oil sprayers can be realized, the combustion in the cylinder can be improved, the energy is saved, and the environmental pollution is reduced.
In this embodiment, the two bosses 12 are arranged in a staggered manner on both sides of the width direction of the cylinder head body 1, and in other embodiments, the two bosses may be arranged symmetrically, and the number of the bosses 12 may be increased or decreased adaptively, that is, the number of the side oil injectors to be installed may be selected appropriately.
Alternatively, as shown in fig. 4, the second mounting hole 121 is a stepped hole. Specifically, the first mounting hole 11 is a stepped hole. It will be appreciated that the provision of a stepped bore formation facilitates the mounting of the fuel injector. In other embodiments, the structural forms of the first mounting hole 11 and the second mounting hole 121 may be adaptively adjusted according to the structural forms of the center injector and the side injector to be installed.
Optionally, as shown in fig. 1, a plurality of connecting holes 122 are further disposed on the boss 12, and the side injector can be fixedly connected to the connecting holes 122 by fasteners. It can be understood that after the side injector is installed in the second installation hole 121, the side injector is fixed to the connection hole 122 of the boss 12 by a fastener, so that the installation of the side injector can be ensured to be more reliable. In this embodiment, the number of the connecting holes 122 is two, and the connecting holes are symmetrically arranged on the boss 12 along the length direction of the cylinder head body 1, and the fastening members are bolts. In other embodiments, the number and arrangement positions of the connecting holes 122 can be adjusted adaptively, and the fastening members can have other structures.
Alternatively, as shown in fig. 3, the side wall of the boss 12 is provided with a first through hole 123, and the first through hole 123 is communicated with the second mounting hole 121 and is used for introducing lubricating oil into the side oil injector. It can be understood that lubricating oil can be introduced into the second mounting hole 121 through the first through hole 123, and when the side oil sprayer is mounted in the second mounting hole 121, the surface of the side oil sprayer can be lubricated, so that the surface of the side oil sprayer is prevented from being worn, and the service life of the side oil sprayer is prolonged.
Optionally, a fuel passage 124 is provided in the boss 12, and one end of the fuel passage 124 is communicated with the second mounting hole 121 and is used for introducing high-pressure fuel into the side injector. Specifically, the bottom wall of the boss 12 is provided with a second through hole 125, the second through hole 125 communicating with the fuel passage 124, the second through hole 125 being used for leaking the high-pressure fuel in the fuel passage 124. As shown in fig. 4, the opening direction of the second through hole 125 is from bottom to top, one end of the fuel passage 124, which is far away from the second mounting hole 121, is communicated with the oil inlet pipe, and one end of the second through hole 125, which is far away from the fuel passage 124, is connected with a control valve, when the pressure of the high-pressure fuel in the side injector is too high, the control valve is opened to leak out a part of the high-pressure fuel through the second through hole 125 to ensure that the pressure of the fuel in the side injector is kept within a proper range, so as to prevent the side injector from being damaged. In other embodiments, the arrangement position and arrangement mode of the second through hole 125 and the fuel passage 124 can be adjusted adaptively according to actual requirements.
Optionally, the side wall of the boss 12 is further provided with a third through hole 126, the third through hole 126 is communicated with the second mounting hole 121, and the high-pressure fuel can flow out of the third through hole 126. It will be appreciated that, after the high pressure fuel enters the side injector from the fuel gallery 124, excess high pressure fuel is able to flow out of the second through-hole 126, constituting a fuel circuit. In this embodiment, the third through hole 126 is disposed at the lower side of the fuel passage 124, and in other embodiments, the disposition position of the third through hole 126 may be adaptively adjusted.
The embodiment also provides a diesel engine, which comprises the diesel engine cylinder cover, wherein the diesel engine can be provided with a plurality of fuel injectors, improves in-cylinder combustion, and can save energy and reduce environmental pollution.
The embodiment also provides a ship, which comprises the diesel engine and can improve the power performance of the ship.
It is obvious that the above embodiments of the present invention are only 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.
Claims (10)
1. A diesel engine cylinder head, comprising:
the cylinder cover comprises a cylinder cover body (1), wherein a first mounting hole (11) is formed in the center of the cylinder cover body (1), and the first mounting hole (11) is used for mounting a central fuel injector; the cylinder cover comprises a cylinder cover body (1) and is characterized in that bosses (12) are arranged on two sides of the width direction of the cylinder cover body (1) respectively, second mounting holes (121) are formed in the bosses (12), the axis of each second mounting hole (121) and the axis of each first mounting hole (11) form an included angle, the second mounting holes (121) are used for mounting side oil injectors, and the side oil injectors can be fixedly connected with the bosses (12).
2. The diesel cylinder head according to claim 1, characterized in that the second mounting hole (121) is a stepped hole.
3. The cylinder head of the diesel engine according to claim 1, characterized in that the boss (12) is further provided with a plurality of connecting holes (122) arranged at intervals, and the side injector can be fixedly connected with the connecting holes (122) through fasteners.
4. The diesel cylinder head according to claim 1, characterized in that the side wall of the boss (12) is provided with a first through hole (123), the first through hole (123) communicating with the second mounting hole (121) and being used for introducing lubricating oil to the side injector.
5. The cylinder head of the diesel engine according to claim 1, characterized in that a fuel passage (124) is provided in the boss (12), and one end of the fuel passage (124) communicates with the second mounting hole (121) and is used for introducing high-pressure fuel to the side injector.
6. A diesel cylinder head according to claim 5, characterized in that the bottom wall of the boss (12) is provided with a second through hole (125), the second through hole (125) communicating with the fuel passage (124), the second through hole (125) being for leaking the high-pressure fuel in the fuel passage (124).
7. The diesel cylinder head according to claim 6, characterized in that the side wall of the boss (12) is further provided with a third through hole (126), the third through hole (126) communicating with the second mounting hole (121), the high-pressure fuel being able to flow out from the third through hole (126).
8. A diesel engine cylinder head according to claim 1, characterized in that the first mounting hole (11) is a stepped hole.
9. A diesel engine comprising a diesel engine cylinder head according to any one of claims 1 to 8.
10. A marine vessel comprising the diesel engine of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022658725.3U CN213711194U (en) | 2020-11-17 | 2020-11-17 | Diesel engine cylinder cover, diesel engine and ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022658725.3U CN213711194U (en) | 2020-11-17 | 2020-11-17 | Diesel engine cylinder cover, diesel engine and ship |
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| CN213711194U true CN213711194U (en) | 2021-07-16 |
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| CN202022658725.3U Active CN213711194U (en) | 2020-11-17 | 2020-11-17 | Diesel engine cylinder cover, diesel engine and ship |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228238A (en) * | 2020-11-17 | 2021-01-15 | 中船动力研究院有限公司 | Diesel engine cylinder cover, diesel engine and ship |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228238A (en) * | 2020-11-17 | 2021-01-15 | 中船动力研究院有限公司 | Diesel engine cylinder cover, diesel engine and ship |
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