CN219388023U - Integrated cylinder cover and automobile - Google Patents

Integrated cylinder cover and automobile Download PDF

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Publication number
CN219388023U
CN219388023U CN202320581370.3U CN202320581370U CN219388023U CN 219388023 U CN219388023 U CN 219388023U CN 202320581370 U CN202320581370 U CN 202320581370U CN 219388023 U CN219388023 U CN 219388023U
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CN
China
Prior art keywords
cylinder head
shaft
camshaft
oil
hole
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Active
Application number
CN202320581370.3U
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Chinese (zh)
Inventor
邱阳
陈小勇
邓伟
何海珠
成卫国
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Chongqing Changan Automobile Co Ltd
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Chongqing Changan Automobile Co Ltd
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Priority to CN202320581370.3U priority Critical patent/CN219388023U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The utility model relates to an integrated cylinder cover and an automobile, which comprise a cylinder cover body, a cam shaft and a bearing cover, wherein the bearing cover is used for assembling a high-pressure oil pump; the bearing cover covers part of the cylinder cover body, so that the first base and the first top seat enclose to form a first shaft hole, and the second base and the second top seat enclose to form a second shaft hole; the shaft neck of the cam shaft sequentially passes through the first shaft hole and the second shaft hole, one cam of the cam shaft is positioned between the first shaft hole and the second shaft hole, and the cam is in movable contact with the plunger of the high-pressure oil pump so as to push the plunger to move. The integrated cylinder cover provided by the utility model can avoid locking of the cam shaft when the pressure of the high-pressure oil pump is increased, realize tappet pressure lubrication and reduce friction loss.

Description

Integrated cylinder cover and automobile
Technical Field
The utility model relates to the technical field of cylinder covers, in particular to an integrated cylinder cover and an automobile.
Background
Under the background of national promotion of carbon peak and carbon neutralization, the internal combustion engine continuously improves the thermal efficiency, and various oil saving technologies have breakthrough progress. Today the fuel pressure of the fuel injection system of the gasoline engine is developed from 350bar to 500bar in the main stream, and the lifting of the fuel pressure presents a new challenge to the high-pressure oil pump mounting seat, however, in the process of lifting the fuel pressure, the existing 350bar high-pressure oil pump mounting seat has a great risk, and the camshaft hole may be locked.
In the proposal of the engine and the high-pressure oil pump mounting seat thereof proposed by the present, a high-pressure oil pump is arranged at the rear end of a cylinder cover, a cam shaft for driving the high-pressure oil pump simultaneously drives a vacuum pump, and the cam shaft belongs to cantilever beam arrangement at the side of the high-pressure oil pump. However, the cantilever beam type structure has high rigidity requirement on the camshaft, and the journal of the camshaft is often required to be made thicker, so that the area of a friction pair at the position is increased, the friction consumption work is increased, the energy conservation and emission reduction are not facilitated, and the friction reduction design and the light weight design of an engine are not met; and when the pressure of the high-pressure oil pump is increased, the cantilever beam end of the cam shaft is easy to generate larger deformation, the locking failure of the cam shaft is still easy to occur, and the reliability is poor.
Disclosure of Invention
One of the purposes of the utility model is an integrated cylinder cover, which is used for solving the quality problem that a cam shaft is easy to lock when a high-pressure oil pump is lifted in the prior art; the second purpose is to provide an automobile.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an integrated cylinder head includes a cylinder head body, a camshaft including an exhaust camshaft or an intake camshaft, and a bearing cap for assembling a high-pressure oil pump; wherein, the liquid crystal display device comprises a liquid crystal display device,
the cylinder head body comprises a first base and a second base, the bearing cover comprises a first top seat and a second top seat, and the bearing cover covers part of the cylinder head body, so that the first base and the first top seat enclose to form a first shaft hole, and the second base and the second top seat enclose to form a second shaft hole;
the shaft neck of the cam shaft sequentially passes through the first shaft hole and the second shaft hole, one cam of the cam shaft is positioned between the first shaft hole and the second shaft hole, and the cam is in movable contact with the plunger of the high-pressure oil pump so as to push the plunger to move.
According to the technical means, the high-pressure oil pump is driven by the cam shaft in the valve mechanism, the cam shaft of the high-pressure oil pump is driven by the cam shaft of the high-pressure oil pump to integrate with the driving cam (namely, the cam between the first shaft hole and the second shaft hole), and the shaft hole for supporting the shaft neck of the cam shaft is formed by the cylinder cover body and the bearing cover, so that the two sides of the driving cam are the shaft neck of the cam shaft, the simple supporting beam is formed instead of the cantilever beam, the requirement of the system on the rigidity of the cam shaft is reduced, the locking problem of the cam shaft is avoided, the cam shaft can be made of ductile iron materials and small shaft neck, the rigidity requirement required for driving the high-pressure oil pump can be met, the shaft neck friction area of the cam shaft is reduced, the friction loss is reduced, the output power of the engine is improved, the antifriction design and the lightweight design of the engine are met, and the cost is also greatly reduced. In addition, the cam for driving the high-pressure oil pump is integrated on the air inlet cam shaft or the air outlet cam shaft, so that the novel double-cam-shaft type air inlet cam pump can be suitable for double-cam-shaft vehicle types, the high-pressure oil pump cam shaft is not required to be additionally arranged, the integration level is high, and the application range is wide.
Further, a first lubrication oil duct communicated with the first shaft hole is arranged on the first base, and a second lubrication oil duct communicated with the second shaft hole is arranged on the second base.
According to the technical means, the lubricating oil duct can input lubricating oil into the shaft hole, so that the lubricating oil is transmitted to the journal of the cam shaft in the shaft hole, the friction loss and the abrasion loss of the journal of the cam shaft are reduced, and the reliability is improved.
Further, the bearing cover comprises a mounting hole and a tappet movably embedded in the mounting hole, and the tappet is sleeved on a plunger of the high-pressure oil pump;
the inner wall surface of the mounting hole is provided with at least one first oil groove, and the first oil groove is communicated with the first shaft hole through an oil supply assembly.
According to the technical means, the tappet for driving the high-pressure oil pump realizes pressure lubrication, the oil path structure is simple, the plugging of the oil path plug is not needed, the cost is low, and the quality is reliable.
Further, a second oil groove is formed in the shaft journal of the camshaft and positioned in the first shaft hole, and an oil supply channel is formed in the bearing cover;
the first oil groove is communicated with the second oil groove through the oil supply channel so as to receive lubricating oil transmitted from the first shaft hole.
According to the technical means, the oil supply channel directly connected with the shaft hole of the cam shaft is designed in the mounting hole of the tappet, and the lubricating oil at the shaft hole part of the cam shaft is directly introduced into the mounting hole of the tappet to realize pressure lubrication, so that the friction loss and the abrasion loss of the tappet are reduced, and the reliability is improved.
Further, the cylinder head further comprises a plurality of fixing bolts;
the cylinder cover body is provided with a positioning pin and a plurality of first fixing holes, and the bearing cover is provided with a positioning hole and a plurality of second fixing holes;
the positions of the positioning holes are opposite to those of the positioning pins, and the positions of the first fixing holes and the second fixing holes are opposite;
the positioning pin penetrates through the positioning hole, and the fixing bolt sequentially penetrates through the first fixing hole and the second fixing hole so as to fix the bearing cover on the cylinder cover body.
According to the technical means, the disassembly and the assembly between the cylinder cover body and the bearing cover can be easily and conveniently realized.
Further, the diameter of the journal of the camshaft is greater than or equal to 21mm and less than or equal to 25mm.
According to the technical means, the small journal design (the diameter range of the journal can be 21-25 mm) of the camshaft can meet the rigidity requirement required by driving the high-pressure fuel pump, the friction area of the journal of the camshaft is reduced, the friction loss is reduced, the antifriction design and the lightweight design of the engine are met, and the output power of the engine is improved.
Further, a main oil duct which is respectively communicated with the first lubricating oil duct and the second lubricating oil duct is arranged on the cylinder cover body, and the main oil duct is communicated with the lubricating oil output device.
According to the technical means, the first lubricating oil duct and the second lubricating oil duct are connected with the main oil duct, so that lubricating oil of an engine can be supplied to the journal friction pair of the camshaft, and the lubrication of the journal of the camshaft is realized.
Further, at least one guide groove is formed in the inner wall surface of the mounting hole, at least one guide block is arranged on the outer wall surface of the tappet, and each guide block is inserted into each guide groove.
According to the technical means, the mounting hole and the tappet are smoothly assembled, so that the tappet can linearly move in the mounting hole and can be limited to rotate in the mounting hole while moving.
An automobile comprises an automobile body, wherein the automobile body is provided with the integrated cylinder cover.
The utility model has the beneficial effects that:
(1) The high-pressure oil pump is driven by the intake camshaft or the exhaust camshaft, the two sides of the driving cam are provided with shaft holes for supporting the camshaft to form a simple beam structure, compared with a cantilever beam, the rigidity requirement of the driving system on the camshaft is reduced, the camshaft material can adopt ductile iron with lower price, the camshaft journal can be reduced, and the cost is lower than that of the steel camshaft while friction is reduced;
(2) The tappet adopts pressure lubrication, the oil way structure is simple, the oil way plug is not needed to be plugged, the cost is low, and the quality is reliable;
the axle hole of installation camshaft can communicate with lubricating oil output device, realizes the lubrication of the axle journal of camshaft with lubricating oil input to the axle hole in, designs the oil duct that directly links to each other with the axle hole of camshaft in the mounting hole of tappet, can directly introduce the lubricating oil of the axle hole part of camshaft into the mounting hole in realizing pressure lubrication, reduces tappet friction loss and wearing and tearing volume, promotes the reliability.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the description of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is an exploded schematic view of an integrated cylinder head of the present utility model;
FIG. 2 is a top view of the integrated cylinder head of the present utility model;
FIG. 3 is a schematic cross-sectional view of the L1-L1 direction in FIG. 2;
FIG. 4 is a left side view of the integrated cylinder head of the present utility model;
FIG. 5 is a schematic view of the cross-sectional structure in the direction L2-L2 in FIG. 4;
fig. 6 is an enlarged view of a portion at i in fig. 5.
1, a cylinder cover body; 11. a first base; 12. a second base; 111. a first lubrication oil passage; 121. a second lubrication oil passage; 2. a cam shaft; 21. camshaft journal a; 22. a driving cam; 23. camshaft journal b; 24. a second oil groove; 3. a bearing cap; 31. a mounting hole; 32. a first top base; 33. a second top base; 34. a first oil groove; 35. an oil supply passage; 4. a fixing bolt; 5. a positioning pin; 6. a tappet.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
It should be explained that, in the scheme of the existing high-pressure oil pump mounting seat, besides the problem that the camshaft 2 is easy to deform to cause locking of the camshaft 2 in the prior art, splash lubrication is adopted for the tappet 6, and because the tappet 6 is positioned above the camshaft 2, the splash lubrication is poor, and is not suitable for lubrication of the tappet 6 in a higher fuel pressure system, and the problem that the holes of the tappet 6 are easily worn or the tappet 6 is blocked is easily caused. In order to overcome the defect that splash lubrication exists, in the scheme proposed by the current technicians, the tappet 6 is required to be provided with a special lubrication oil duct to realize pressure lubrication, the oil duct design is complex, aluminum scraps generated by processing are difficult to clear, the processing time is long, an additional oil duct plug is required to be designed for plugging, the oil leakage risk is increased, and the cost of the shaft cover is high.
The utility model mainly aims to solve the problem that the camshaft 2 is easy to deform to cause locking of the camshaft 2 in the prior art for driving a high-pressure oil pump. FIG. 1 shows an exploded schematic view of an integrated cylinder head according to the present disclosure; FIG. 2 illustrates a top view of an integrated cylinder head according to the present disclosure; FIG. 3 is a schematic cross-sectional view of the L1-L1 direction in FIG. 2.
Referring to fig. 1-3, the present embodiment proposes an integrated cylinder head, which includes a cylinder head body 1, a camshaft 2, and a bearing cap 3, wherein the bearing cap 3 is used for assembling a high-pressure oil pump; the cylinder head body 1 comprises a first base 11 and a second base 12, the bearing cover 3 comprises a first top seat 32 and a second top seat 33, and the bearing cover 3 covers part of the cylinder head body 1, so that the first base 11 and the first top seat 32 enclose to form a first shaft hole, and the second base 12 and the second top seat 33 enclose to form a second shaft hole; the shaft neck of the camshaft 2 sequentially passes through the first shaft hole and the second shaft hole, one cam of the camshaft 2 is positioned between the first shaft hole and the second shaft hole, and the cam is in movable contact with a plunger of the high-pressure oil pump so as to push the plunger to move.
Specifically, the cylinder head body 1 may employ a cylinder head body 1 configured of a gasoline engine, for example, the cylinder head body 1 further includes an intake valve and an exhaust valve, which are not specifically described in the present embodiment, a valve guide guiding the fuel out, a top cover forming a combustion chamber in combination with a cylinder, a piston located at the top of the cylinder head body 1, and the like. It will be appreciated that a great feature of the present utility model is the integration of the bearing cap 3 on the camshaft 2, the camshaft 2 being commonly used with a cylinder head, for example, the camshaft 2 may drive the valve on the cylinder head body 1 to open and close, etc., so that the present utility model will not be described in detail with reference to the prior art for the cylinder head body 1.
Preferably, the camshaft 2 may employ an intake camshaft 2 or an exhaust camshaft 2. In some embodiments, the vehicle is configured as a double camshaft 2, and the bearing cap 3 may be fixed to any one of the camshafts 2 to realize driving of the high-pressure oil pump. The bearing cover 3 is integrated on an air inlet cam shaft or an air outlet cam shaft, so that the novel double-cam-shaft type air inlet cam is applicable to double-cam-shaft type air inlet cam shafts, a high-pressure oil pump cam shaft is not required to be additionally arranged, the integration level is high, and the application range is wide. The exhaust camshaft 2 has a similar structure and function to those of the intake camshaft 2, so the present embodiment will be described by taking the intake camshaft 2 (hereinafter referred to as camshaft 2) as an example, and the present embodiment may be referred to as an integrated exhaust camshaft 2. It will be appreciated that the camshaft 2 comprises a cylindrical journal and a plurality of cams on the journal, rotation of the camshaft 2 driving the cams to perform a circular motion, portions of the cams being engageable with the intake valves to convert the circular motion into linear motion of the intake valves, portions of the cams being movable into contact with plungers of the high pressure oil pump to convert the circular motion into linear motion of the plungers, the plungers moving up and down to thereby generate high pressure fuel and deliver the fuel to the fuel injection nozzles.
In the present embodiment, one high-pressure oil pump may be provided, and one cam (hereinafter, collectively referred to as a drive cam 22) in contact with the high-pressure oil pump may be provided, and the plunger of the high-pressure oil pump may be pushed up and down by the drive cam 22. During the high-speed operation of the driving cam 22 by the cam shaft 2, the driving cam 22 may be provided at the rear end of the cam shaft 2, which may be the end of the cam shaft 2 on the side close to the flywheel, such as the left end shown in fig. 1. The bearing cap 3 can thus cover the end region of the cylinder head body 1, so that the partial camshaft 2 with the drive cam 22 is located in the drive space formed by the cylinder head body 1 and the bearing cap 3. Within this drive space, both sides of the drive cam 22 may have a camshaft journal a21 and a camshaft journal b23, wherein the camshaft journal a21 may be closer to the rear end of the camshaft 2 than the camshaft journal b 23.
Wherein, the first base 11 and the first top seat 32 may form a first shaft hole supporting the camshaft journal a 21; the second base 12 and the second top seat 33 can form a second shaft hole for supporting the camshaft journal b23, the two shaft holes and the camshaft 2 form a simply supported beam, the driving cam 22 is located in the middle area of the simply supported beam, so that both ends of the camshaft 2 are supported, and under the condition that the shape and the structure of the camshaft 2 are the same, the deformation of the simply supported beam type camshaft 2 is smaller than that of the cantilever beam type camshaft 2, the structure is more reliable, and the locking failure of the camshaft 2 caused by the deformation of the camshaft 2 is not easy to occur.
In the embodiment, as the camshaft 2 is arranged not as a cantilever beam but as a simply supported beam, the requirement of the driving system on the rigidity of the camshaft 2 can be reduced, the diameter range of the shaft neck of the camshaft 2 is set to be larger than or equal to 21mm and smaller than or equal to 25mm, and the design of a small shaft neck is realized, so that the friction area of the shaft neck of the camshaft 2 is reduced, the friction loss is reduced, and the output power of the engine is improved.
In some embodiments, the camshaft 2 may be made of less expensive ductile iron than steel, which reduces friction while also reducing cost compared to steel camshaft 2.
In one implementation, the first base 11 is provided with a first lubrication oil channel 111 that communicates with the first shaft hole, and the second base 12 is provided with a second lubrication oil channel 121 that communicates with the second shaft hole. In the present embodiment, the first base 11 and the first footstock 32 enclose to form a first shaft hole, the first lubrication oil passage 111 may be provided on a top wall of the first base 11, which may be a wall surface in contact with a journal of the camshaft 2 passing through the first shaft hole, for example, the first lubrication oil passage 111 may be bored in the first base 11, and likewise, the second lubrication oil passage 121 may be bored in the second base 12. In some embodiments, the first lubricating oil channel 111 and the second lubricating oil channel 121 penetrate through a main oil channel on the cylinder head, and the main oil channel is communicated to the lubricating oil output device, so that lubricating oil respectively reaches the friction pair surface of the camshaft journal a21 in the first shaft hole through the first lubricating oil channel 111 to form a lubricating oil film, and reaches the friction pair surface of the camshaft journal b23 in the second shaft hole through the second lubricating oil channel 121 to form a lubricating oil film, thereby realizing the lubrication of the journal of the camshaft 2. Therefore, on the basis that the small journal design reduces the journal friction area of the camshaft 2, the friction loss and the abrasion loss are further reduced, and the service life of the camshaft 2 is prolonged.
In some embodiments, the diameters of the first and second lubrication oil passages 111 and 121 may be 2.0mm to 4mm. The first lubricating oil passage 111 and the second lubricating oil passage 121 of this size can ensure that the delivery pressure of lubricating oil is satisfied under the conditions of high engine speed and high load, and at the same time, the amount of lubricating oil satisfying the lubrication demand can be delivered into the shaft hole, so that the camshaft 2 can be sufficiently lubricated.
In some embodiments, the lubrication output device may be a sump of an engine.
The other purpose of the present application is to solve the problems of complex design, high cost, high risk of oil leakage, etc. of the pressure lubrication dedicated oil path currently applied to the tappet 6, as shown in fig. 4 to 6, fig. 4 shows a left side view of the integrated cylinder head of the present utility model, and fig. 5 is a schematic sectional structure diagram in the direction L2-L2 in fig. 4; FIG. 6 shows a partial enlarged view at I in FIG. 5; the application proposes yet another technical solution:
the bearing cover 3 comprises a mounting hole 31 and a tappet 6 movably embedded in the mounting hole 31, and the tappet 6 is sleeved on a plunger of the high-pressure oil pump; wherein, the inner wall surface of the mounting hole 31 is provided with at least one first oil groove 34, and the first oil groove 34 is communicated with the first shaft hole through an oil supply assembly. Further, the oil supply assembly includes: a second oil groove 24 provided on a journal of the camshaft 2 in the first shaft hole, and an oil supply passage 35 provided on the bearing cap 3; wherein the first oil groove 34 communicates with the second oil groove 24 through the oil supply passage 35 to receive the lubricating oil transferred from the first shaft hole.
Specifically, the high-pressure oil pump can be inserted into the tappet 6, and is assembled to the bearing cover 3 through the tappet 6, when the plunger of the high-pressure oil pump moves up and down under the action of the cam, the tappet 6 can limit the plunger of the high-pressure oil pump to deviate from the original track possibly due to inertia action or other factors, so that the track stability of the plunger of the high-pressure oil pump is ensured, and the accurate injection quantity of the high-pressure oil is ensured. In some embodiments, the first shaft hole receives the lubricating oil output from the first lubricating oil duct 111, and transmits the lubricating oil into the first oil groove 34 through the journal of the camshaft 2, so as to reduce friction loss generated by the up-and-down high-speed movement of the tappet 6 in the mounting hole 31, so that the tappet 6 realizes pressure lubrication, and the oil duct has a simple structure, does not need to be plugged by an oil duct plug, and has low cost and reliable quality.
In some embodiments, the lubricating oil in the inner portion of the first shaft hole communicating with the first lubricating oil passage 111 may be introduced into the mounting hole 31 through the second oil groove 24, the oil supply passage 35 and the first oil groove 34 on the journal of the camshaft 2, to provide pressure lubrication for the friction pair surfaces of the tappet 6 and the bearing cap 3, so as to achieve reduction of friction loss and wear amount of the tappet 6, and improvement of reliability.
In some embodiments, the diameter of the oil supply channel 35 on the bearing cap 3 is variable to increase the rate of delivery of lubricating oil; in some embodiments, the oil supply channel 35 extends in a curved shape on the bearing cap 3 to communicate with the first oil groove 34, wherein the diameter at the turning mouth of the oil supply channel 3 is larger than the diameter at other places to reduce the flow resistance of the lubricating oil in the oil supply channel 35.
In some embodiments, the number of the first oil grooves 34 may be determined according to the size of the inner wall surface of the mounting hole 31, wherein the inner wall surface may be a side wall surface of the mounting hole 31 facing the tappet 6, and preferably, the plurality of first oil grooves 34 may be circumferentially spaced around the inner wall surface of the mounting hole 31. The number of the second oil grooves 24 may be determined according to the size of the journal of the camshaft 2, and preferably, one second oil groove 24 may be provided on the journal of the camshaft 2. By arranging the second oil groove 24 on the journal of the camshaft 2, the lubricating oil is firstly filled in the second oil groove 24 and then flows to the oil supply channel 35 through the second oil groove 24, so that the excessive pressure of the high-pressure lubricating oil under the high-speed rotation of the journal is avoided, and the effect of slowly releasing the pressure of the high-pressure lubricating oil in the conveying process can be achieved.
In some embodiments, the first oil groove 34 and the second oil groove 24 may be sized in other suitable manners on the corresponding components, and the present embodiment is not particularly limited.
In this embodiment, in order to ensure smooth movement of the tappet 6 in the mounting hole 31, at least one guide groove is provided on the inner wall surface of the mounting hole 31, at least one guide block is provided on the outer wall surface of the tappet 6, and each guide block is inserted into each guide groove. In this embodiment, the tappet 6 is pushed by the driving cam 22 in the mounting hole 31 through the cooperation of the guide block and the guide groove, and under the high-speed pushing of the driving cam 22, the tappet 6 can be limited to rotate in the mounting hole 31 due to the clamping of the guide block and the guide groove, so that the stable track of the tappet 6 and the plunger of the high-pressure oil pump is ensured, and the accurate injection quantity of the high-pressure fuel is ensured.
The present embodiment is for explaining the assembly process of the bearing cap 3 and the cylinder head body 1, which further includes a plurality of fixing bolts 4; a positioning pin 5 and a plurality of first fixing holes are arranged on the cylinder head body 1, and a positioning hole and a plurality of second fixing holes are arranged on the bearing cover 3; the positioning holes are opposite to the positioning pins 5, and each first fixing hole is opposite to each second fixing hole; wherein the positioning pin 5 passes through the positioning hole, and the fixing bolt 4 passes through the first fixing hole and the second fixing hole in order to fix the bearing cap 3 to the cylinder head body 1. In this way, since the bearing cap 3 is provided with the positioning hole that is in clearance fit with the positioning pin 5, the bearing cap 3 can be first assembled with the positioning pin 5 press-fitted to the cylinder head body 1 through the pin hole, and then fixed to the cylinder head through the plurality of fixing bolts 4.
The embodiment also provides an automobile, which comprises an automobile body, wherein the integrated cylinder cover is arranged on the automobile body.
The automobile and the integrated cylinder cover provided by the utility model can be suitable for a high-pressure fuel system with the fuel pressure of 500bar of a gasoline engine, and provide a technical foundation for supporting the thermal efficiency of an internal combustion engine.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It should also be noted that, in the present document, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Moreover, relational terms such as "first" and "second" may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, or order, and without necessarily being construed as indicating or implying any relative importance. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal.
The foregoing has described in detail the present application with reference to an integrated cylinder head and vehicle, and specific examples have been provided herein to illustrate the principles and embodiments of the present application, but the description of the examples is merely provided to facilitate the understanding of the present application, and the disclosure should not be construed as limiting the present application. Also, various modifications in the details and application scope may be made by those skilled in the art in light of this disclosure, and all such modifications and variations are not required to be exhaustive or are intended to be within the scope of the disclosure.

Claims (9)

1. An integrated cylinder head, comprising a cylinder head body, a camshaft and a bearing cap, wherein the bearing cap is used for assembling a high-pressure oil pump, and the camshaft comprises an exhaust camshaft or an intake camshaft; wherein, the liquid crystal display device comprises a liquid crystal display device,
the cylinder head body comprises a first base and a second base, the bearing cover comprises a first top seat and a second top seat, and the bearing cover covers part of the cylinder head body, so that the first base and the first top seat enclose to form a first shaft hole, and the second base and the second top seat enclose to form a second shaft hole;
the shaft neck of the cam shaft sequentially passes through the first shaft hole and the second shaft hole, one cam of the cam shaft is positioned between the first shaft hole and the second shaft hole, and the cam is in movable contact with the plunger of the high-pressure oil pump so as to push the plunger to move.
2. The integrated cylinder head of claim 1, wherein the first base has a first lubrication gallery disposed thereon in communication with the first axial bore, and the second base has a second lubrication gallery disposed thereon in communication with the second axial bore.
3. The integrated cylinder head of claim 2, wherein the bearing cap includes a mounting hole and a tappet movably embedded in the mounting hole, the tappet being sleeved on a plunger of the high-pressure oil pump;
the inner wall surface of the mounting hole is provided with at least one first oil groove, and the first oil groove is communicated with the first shaft hole through an oil supply assembly.
4. An integrated cylinder head according to claim 3, wherein the oil supply assembly comprises: a second oil groove arranged on the shaft neck of the cam shaft and positioned in the first shaft hole, and an oil supply channel arranged on the bearing cover;
the first oil groove is communicated with the second oil groove through the oil supply channel so as to receive lubricating oil transmitted from the first shaft hole.
5. The integrated cylinder head of claim 1, wherein the cylinder head further comprises a plurality of fixing bolts;
the cylinder cover body is provided with a positioning pin and a plurality of first fixing holes, and the bearing cover is provided with a positioning hole and a plurality of second fixing holes;
the positions of the positioning holes are opposite to those of the positioning pins, and the positions of the first fixing holes and the second fixing holes are opposite;
the positioning pin penetrates through the positioning hole, and the fixing bolt sequentially penetrates through the first fixing hole and the second fixing hole so as to fix the bearing cover on the cylinder cover body.
6. The integrated cylinder head of claim 1, wherein the diameter of the journal of the camshaft is greater than or equal to 21mm and less than or equal to 25mm.
7. The integrated cylinder head of claim 2, wherein the cylinder head body is provided with a main oil gallery in communication with the first and second lubricating oil galleries, respectively, the main oil gallery in communication with a lubricating oil output device.
8. An integrated cylinder head according to claim 3, wherein the inner wall surface of the mounting hole is provided with at least one guide groove, and the outer wall surface of the tappet is provided with at least one guide block, each of which is inserted into each of the guide grooves.
9. An automobile comprising a body, characterized in that the body is provided with an integrated cylinder head according to any one of claims 1-8.
CN202320581370.3U 2023-03-22 2023-03-22 Integrated cylinder cover and automobile Active CN219388023U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320581370.3U CN219388023U (en) 2023-03-22 2023-03-22 Integrated cylinder cover and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320581370.3U CN219388023U (en) 2023-03-22 2023-03-22 Integrated cylinder cover and automobile

Publications (1)

Publication Number Publication Date
CN219388023U true CN219388023U (en) 2023-07-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320581370.3U Active CN219388023U (en) 2023-03-22 2023-03-22 Integrated cylinder cover and automobile

Country Status (1)

Country Link
CN (1) CN219388023U (en)

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