CN112096537A - Integrated cylinder head cover and automotive engine - Google Patents

Abstract

The invention relates to an integrated cylinder head cover and an automobile engine. The integrated cylinder head cover includes a cover body, a camshaft mounting seat located in the middle of the cover body, a solenoid valve mounting seat and a variable valve mounting seat respectively provided at both ends of the cover body, and a first lubricating oil passage structure and second lubricating oil passage structure; the first lubricating oil passage structure includes a camshaft oil passage arranged in the middle of the cover body, a camshaft lubricating oil passage arranged on the camshaft mounting seat, and a camshaft lubricating oil passage arranged on the variable valve The variable valve lubricating oil passage on the mounting seat, the camshaft lubricating oil passage and the variable valve lubricating oil passage are all communicated with the camshaft conveying oil passage; the second lubricating oil passage structure includes a solenoid valve arranged at the end of the cover body The delivery oil passage and the solenoid valve lubricating oil passage arranged on the solenoid valve mounting seat. The invention can solve the problem in the related art that after the cylinder head cover integrates VVT, VVL and other mechanisms, the oil demand is increased and the lubricating condition of the camshaft is deteriorated.

Description

Integrated cylinder head cover and automotive engine

technical field

The invention relates to the technical field of automobile engines, in particular to an integrated cylinder head cover and an automobile engine.

Background technique

As the country's requirements for automobile fuel consumption and emission performance become more and more stringent, the automobile industry is also making continuous progress, and more and more new technologies are applied to automobile engines at the same time, such as VVT (variable valve timing), VVL (variable valve lift), etc., make the structure of modern engines more and more complex, and the integrated and modular design concept is more and more respected by the industry. On the other hand, people's requirements for car quality are not limited to the satisfaction of space and performance. Low noise and comfort have also become an important concern of automobile companies. At present, the above-mentioned complex technologies and structures are more and more integrated into the engine cylinder head cover. The advantage of this is that the height and complexity of the cylinder head can be greatly reduced. But it also brings new problems: the cylinder head cover is a thin-walled shell part, and the complex structure makes the design of the corresponding oil passage arrangement difficult. The lubricating oil passage of the cam journal of the existing engine is usually at the end of the engine lubrication system, especially after the integration of VVT, VVL and other mechanisms increases the oil demand, resulting in the continued deterioration of the lubricating condition of the camshaft, usually causing abnormal wear of the cam journal. Happening.

SUMMARY OF THE INVENTION

The invention provides an integrated cylinder head cover and an automobile engine, so as to solve the problem in the related art that after the cylinder head cover integrates VVT, VVL and other mechanisms, the oil demand increases and the lubricating condition of the camshaft is deteriorated.

In a first aspect, the present invention provides an integrated cylinder head cover, comprising:

cover body;

The camshaft mounting seat is integrally arranged in the middle of the cover body;

The solenoid valve mounting seat is integrally provided at one end of the cover body;

a variable valve mounting seat integrally provided at the other end of the cover body; and,

The lubricating oil channel structure includes a first lubricating oil channel structure and a second lubricating oil channel structure;

Wherein, the first lubricating oil passage structure includes a camshaft oil passage provided in the middle of the cover body, a camshaft lubricating oil passage provided on the camshaft mounting seat, and a camshaft lubricating oil passage provided on the variable The variable valve lubricating oil passage on the valve mounting seat, the camshaft lubricating oil passage and the variable valve lubricating oil passage are both communicated with the camshaft conveying oil passage; the second lubricating oil passage structure includes a The solenoid valve oil passage at the end of the cover body, and the solenoid valve lubricating oil passage provided on the solenoid valve mounting seat, the solenoid valve lubricating oil passage communicates with the solenoid valve oil passage.

In some embodiments, the camshaft mounting seat includes an intake cam mounting seat and an exhaust cam mounting seat that are arranged side by side on both sides of the cover body, and the intake cam mounting seat includes an intake cam mounting seat that is sequentially arranged on the a plurality of intake cam fixing supports on the cover body, the exhaust cam fixing seats include a plurality of exhaust cam fixing supports sequentially arranged on the cover body, and the exhaust cam fixing supports One-to-one correspondence with the intake cam fixing supports;

The camshaft lubricating oil passage includes an intake cam lubricating oil passage provided on each of the intake cam fixed supports, and an exhaust cam lubricating oil passage provided on each of the exhaust cam fixed supports ; The camshaft conveying oil passage includes a main cam conveying oil passage arranged on the cover body, and a plurality of branch cam conveying oil passages communicating with the main cam conveying oil passage, the main cam conveying oil passage The plurality of intake cam lubricating oil passages, the plurality of exhaust cam lubricating oil passages, and the variable valve lubricating oil passages are communicated with a plurality of the branch cam oil passages.

In some embodiments, a plurality of the intake cam lubricating oil passages are in direct communication with the main cam conveying oil passage, and each branch cam conveying oil passage is in direct corresponding communication with one of the exhaust cam lubricating oil passages ;or,

The plurality of exhaust cam lubricating oil passages are directly connected with the main cam conveying oil passage, and each branch cam conveying oil passage is directly connected with one of the intake cam lubricating oil passages.

In some embodiments, the camshaft delivery oil passage includes a camshaft oil inlet oil passage provided on the cover body, and a camshaft outer oil passage provided on the cylinder head, the camshaft is fed with oil One end of the channel is communicated with the external oil channel of the camshaft;

One of the branch cam transmission oil passages is set as a branch cam oil inlet oil passage, and the other end of the camshaft oil inlet oil passage is communicated with the branch cam oil inlet oil passage, and The branch cam oil inlet oil passage communicates with the main cam delivery oil passage through a first throttle hole.

In some embodiments, a longitudinal protrusion and a transverse protrusion are protruded from the cover body, the main cam oil channel is provided in the transverse protrusion, and the branch cam oil channel is provided in the Longitudinal bulge.

In some embodiments, the intake cam lubricating oil passage is formed by opening holes at the journal groove of the intake cam fixing seat, and the exhaust cam lubricating oil passage is formed by opening a hole in the exhaust cam fixing seat. A hole is formed at the journal groove.

In some embodiments, the solenoid valve delivery oil passage at the end of the cover body includes a solenoid valve main oil delivery passage provided on the cover body, and a solenoid valve communicated with the solenoid valve main oil delivery passage an oil inlet oil passage, and an external oil passage of the solenoid valve arranged on the cylinder head, the external oil passage of the solenoid valve is communicated with the oil inlet oil passage of the solenoid valve;

There is one solenoid valve mounting seat on both sides of the end of the cover body, and each of the solenoid valve lubricating oil passages includes a main oil delivery channel provided on the cover body and communicated with the solenoid valve. A solenoid valve transition oil passage communicated with the passage, and a solenoid valve main lubricating oil passage arranged on the solenoid valve mounting seat and communicated with the solenoid valve transition oil passage.

In some embodiments, the solenoid valve transition oil passage communicates with the solenoid valve main lubricating oil passage through a second orifice.

In some embodiments, an end protrusion is protruded from the end of the cover body, and the main oil conveying passage of the solenoid valve is provided in the end protrusion.

In a second aspect, the present invention provides an automobile engine comprising the integrated cylinder head cover as described above.

The beneficial effects brought by the technical solution provided by the present invention include: ensuring the lubricating effect on the cam journal and reducing the wear of the cam journal.

The embodiment of the present invention provides an integrated cylinder head cover. The camshaft mounting seat, the solenoid valve mounting seat and the variable valve mounting seat are all cast and machined integrally with the cover body, which can improve the camshaft mounting seat. The high coaxiality of the camshaft hole can reduce the wear of the camshaft journal. Compared with the separate camshaft mounting seat, solenoid valve mounting seat and variable valve mounting seat, it can reduce the cost of parts and improve the assembly efficiency. In addition, the camshaft lubricating oil passages of each cam journal, the variable valve lubricating oil passages of the variable valve lift drive mechanism, and the solenoid valve lubricating oil passages of the OCV solenoid valve are integrated on the cylinder head cover, and the two oil passages are divided into two groups. The single-body arrangement, that is, oil is taken from the central axis of the front end of the cylinder head and the rear end of the intake side respectively, which can not only improve the transient response of the OCV solenoid valve and the variable valve lift drive mechanism, optimize the engine ventilation process, and ensure that the The engine maintains the characteristics of high power and low fuel consumption, and can also effectively shorten the oil supply distance at the camshaft journal to ensure that the camshaft mounting seat on the exhaust side at the end of the engine lubrication system has sufficient lubricating oil pressure, which can further avoid the camshaft The neck is abnormally worn.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic diagram 1 of the three-dimensional structure of the integrated cylinder head cover (at the time of assembly) according to the embodiment of the present invention;

FIG. 2 is a schematic diagram 2 of the three-dimensional structure of the integrated cylinder head cover (at the time of assembly) according to the embodiment of the present invention;

3 is a first three-dimensional structural schematic diagram of the cover body of the integrated cylinder head cover according to the embodiment of the present invention;

FIG. 4 is a second three-dimensional structural schematic diagram of the cover body of the integrated cylinder head cover according to the embodiment of the present invention;

5 is a schematic cross-sectional structural diagram of a cover body of an integrated cylinder head cover according to an embodiment of the present invention;

6 is a schematic longitudinal cross-sectional structural diagram of the cover body (at the position of the solenoid valve mounting seat) of the integrated cylinder head cover according to the embodiment of the present invention;

7 is a schematic longitudinal cross-sectional structural diagram of the cover body (at the position of the variable valve mounting seat) of the integrated cylinder head cover according to the embodiment of the present invention;

FIG. 8 is a partial enlarged structural schematic diagram of the position of the first orifice in FIG. 4 .

In the figure: 100, cover body; 102, main cam conveying oil passage; 104, branch cam conveying oil passage; 1042, first throttle hole; 106, camshaft oil inlet oil passage; 108, camshaft external oil passage; 110, intake cam mounting seat; 112, intake cam lubricating oil passage; 120, exhaust cam mounting seat; 122, exhaust cam lubricating oil passage; 130, variable valve mounting seat; 132, variable valve lubricating oil passage ;140, Solenoid valve mounting seat; 142, Solenoid valve main lubricating oil passage; 144, Solenoid valve main delivery oil passage; 146, Solenoid valve transition oil passage; 148, Solenoid valve inlet oil passage; 149, Solenoid valve external oil passage ; 200, intake camshaft; 300, exhaust camshaft; 400, variable valve lift drive mechanism; 500, OCV solenoid valve; 600, cylinder head; 700, ignition coil; 800, oil filler cap.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The invention provides an integrated cylinder head cover and an automobile engine, so as to solve the problem in the related art that after the cylinder head cover integrates VVT, VVL and other mechanisms, the oil demand increases and the lubricating condition of the camshaft is deteriorated. That is, the present invention can ensure the lubricating effect on the cam journal and reduce the wear of the cam journal.

Specifically, as shown in FIGS. 1 to 4 , the integrated cylinder head cover provided by the present invention includes a cover cover body 100, a camshaft mounting seat (110, 120) integrally provided in the middle of the cover cover body 100, and integrally provided with a camshaft mounting seat (110, 120). The solenoid valve mounting seat 140 at one end of the cover body 100, the variable valve mounting seat 130 integrally provided at the other end of the cover body 100, and the cover body 100, the camshaft mounting seats (110, 120), The solenoid valve mounting seat 140 and the lubricating oil passage structure on the variable valve mounting seat 130 . The camshaft mounting seats ( 110 , 120 ) can be used to install and fix the intake camshaft 200 or the exhaust camshaft 300 to the middle of the cover body 100 , and the solenoid valve mounting seat 140 can install the OCV solenoid valve 500 to the cover body 100 . At one end, the variable valve mounting seat 130 can mount and fix the variable valve lift driving mechanism 400 to the other end of the cover body 100, so as to connect the intake camshaft 200, the exhaust camshaft 300, the OCV solenoid valve 500 and the variable valve The valve lift drive mechanism 400 is integrated into the cylinder head cover. In addition, the above-mentioned integrated cylinder head cover not only integrates the camshaft mounting seat for installing the intake camshaft 200 and the exhaust camshaft 300, but also integrates the oil filler cap 800, the oil-gas separation chamber, the ignition coil 700, the phase sensor, Mounting carrier to which the peripheral bracket is fixed.

In addition, the above-mentioned camshaft mounting seat (110, 120) and the cylinder head cover adopt an integrated casting and machining process, which can improve the coaxiality of the camshaft hole on the camshaft mounting seat (110, 120), and can reduce the need for installation in the The wear of the cam journals of the intake camshaft 200 (or the exhaust camshaft 300 ) on the camshaft mounts ( 110 , 120 ) can reduce part costs and improve assembly efficiency compared to split camshaft mounts. Similarly, the above-mentioned solenoid valve mounting seat 140 and variable valve mounting seat 130 are integrally cast and machined with the cylinder head cover, and the shaft on the solenoid valve mounting seat 140 (or the variable valve mounting seat 130 ) can also be improved. The coaxiality of the hole can also reduce the wear on the parts. In addition, the layout and design of the above-mentioned parts are highly integrated on the cylinder head cover, which reduces the layout and processing difficulty of the cylinder head accordingly, and provides a feasible solution for the increasingly miniaturized engine design requirements.

Moreover, the above lubricating oil passage structure includes a first lubricating oil passage structure and a second lubricating oil passage structure, wherein the first lubricating oil passage structure is the intake camshaft 200 (or the exhaust camshaft 300 ) and the variable valve lift drive. The mechanism 400 provides lubrication, and the second oil passage structure provides lubrication for the OCV solenoid valve 500 . By arranging the two lubricating oil passage structures of the first lubricating oil passage structure and the second lubricating oil passage structure separately, oil can be taken from both sides of the top of the cylinder head 600 (near the camshaft and the OCV solenoid valve 500 respectively), and delivered separately. To the camshaft mounts ( 110 , 120 ) and the solenoid valve mounts 140 , lubricate the intake camshaft 200 (or the exhaust camshaft 300 ) and the OCV solenoid valve 500 , respectively. This split oil supply method can effectively shorten the oil supply distance of the camshaft journal, ensure that the camshaft mounting seat at the end of the engine lubrication system has sufficient lubricating oil pressure, and avoid abnormal wear of the camshaft journal.

Specifically, as shown in FIGS. 5 to 8 , the above-mentioned first lubricating oil passage structure includes a camshaft oil passage provided in the middle of the cover body 100, and a camshaft provided on the camshaft mounting seat (110, 120). The lubricating oil passages (112, 122), and the variable valve lubricating oil passage 132 provided on the variable valve mounting seat 130, the camshaft lubricating oil passages (112, 122) and the variable valve lubricating oil passage 132 are all connected to the camshaft. The delivery oil passage is connected. The lubricating oil can be delivered to the camshaft lubricating oil passages (112, 122) through the camshaft oil passages, so as to lubricate the camshaft holes of the camshaft mounting seats (110, 120), so as to lubricate the camshaft mounting seats (110, 120). 110, 120) to lubricate the journals of the intake camshaft 200 (or exhaust camshaft 300) to reduce the wear of the journals of the intake camshaft 200 (or exhaust camshaft 300); The shaft delivery oil passage can deliver lubricating oil to the variable valve lubricating oil passage 132 to lubricate the shaft hole of the variable valve mounting seat 130 and lubricate the variable valve lift driving mechanism 400 .

Moreover, the above-mentioned second lubricating oil passage structure may include a solenoid valve oil passage provided at the end of the cover body 100, and a solenoid valve lubricating oil passage provided on the solenoid valve mounting seat 140. The solenoid valve lubricating oil passage is connected to the solenoid valve lubricating oil passage. The valve delivery oil passage is connected. Lubricating oil can be delivered to the solenoid valve lubricating oil passage through the solenoid valve oil passage, so as to lubricate the shaft hole of the solenoid valve mounting seat 140, and the OCV solenoid valve 500 can be lubricated.

Further, in some embodiments, the above-mentioned camshaft mounts ( 110 , 120 ) may include an intake cam mount 110 and an exhaust cam mount 120 arranged side by side on both sides of the cover body 100 , wherein the intake cam mounts The fixing seat 110 is used to fix the intake camshaft 200, and the exhaust cam fixing seat 120 is used to fix the exhaust camshaft 300, that is, the intake camshaft 200 can be fixed by the intake cam fixing seat 110 and the exhaust cam fixing seat 120. It is fastened to the cylinder head cover side by side with the exhaust camshaft 300. In addition, the above-mentioned intake cam fixing seat 110 may include a plurality of intake cam fixing supports which are sequentially arranged on the cover body 100 . Since the intake camshaft 200 is relatively long, the intake cam fixing supports can be used to obtain a plurality of intake cam fixing supports from the shaft. The intake camshaft 200 is supported and fixed to multiple positions; and the above-mentioned exhaust cam fixing seat 120 may include a plurality of exhaust cam fixing supports sequentially arranged on the cover body 100, for the same reason as the exhaust camshaft The 300 is longer, and the exhaust camshaft 300 can be supported and fixed from multiple positions in the axial direction through a plurality of exhaust cam fixing supports. Moreover, the exhaust cam fixing supports and the intake cam fixing supports can also be arranged in a one-to-one correspondence, so that a plurality of exhaust cam fixing supports and a plurality of intake cam fixing supports can be made to correspond to each other, which is convenient for multiple The exhaust cam fixing supports and the intake cam fixing supports are arranged in multiple rows, and each exhaust cam fixing support and an intake cam fixing support are set in a corresponding row, so that the The exhaust cam fixing support and the intake cam fixing support are integrated. In addition, the variable valve mounting seat 130 can also be provided at the end of the intake cam mounting seat 110 and arranged side by side with an exhaust cam mounting seat.

Moreover, the above-mentioned camshaft lubricating oil passages may include intake cam lubricating oil passages 112 provided on each intake cam fixed support, and exhaust cam lubricating oil passages 122 provided on each exhaust cam fixed support . Through the intake cam lubricating oil passage 112, lubricating oil can be delivered to the camshaft hole of the intake cam fixed support to lubricate the journal of the intake camshaft 200 located on the intake cam fixed support; The cam lubricating oil passage 122 can deliver lubricating oil to the camshaft hole of the exhaust cam mounting bracket to lubricate the journal of the exhaust camshaft 300 on the exhaust cam mounting bracket. Moreover, the above-mentioned camshaft conveying oil passage includes a main cam conveying oil passage 102 provided on the cover body 100, and a plurality of branch cam conveying oil passages 104 communicating with the main cam conveying oil passage 102. The main cam conveying oil passage 102 and The plurality of branch cam delivery oil passages 104 communicate with the plurality of intake cam lubricating oil passages 112 , the plurality of exhaust cam lubricating oil passages 122 , and the variable valve lubricating oil passages 132 . The main cam conveying oil passage 102 can deliver lubricating oil to each branch cam conveying oil passage 104, and through the branch cam conveying oil passage 104 and the main cam conveying oil passage 102, the lubricating oil can be conveyed to the intake cam lubricating oil passage 112, the exhaust cam The air cam lubricating oil passage 122 and the variable valve lubricating oil passage 132 .

Further, in some embodiments, a plurality of intake cam lubricating oil passages 112 can be directly communicated with the main cam conveying oil passage 102 , and each branch cam conveying oil passage 104 is in direct corresponding communication with one exhaust cam lubricating oil passage 122 . . In this way, lubricating oil can be directly delivered to the plurality of intake cam lubricating oil passages 112 through the main cam delivery oil passage 102 to directly lubricate the plurality of intake cam fixed supports; at the same time, the oil passages 104 can be delivered through a plurality of branch cams The lubricating oil is delivered to the plurality of exhaust cam lubricating oil passages 122 in a one-to-one correspondence, so as to directly lubricate the plurality of exhaust cam fixed supports. In this way, the length of the oil passage for transporting the lubricating oil to the fixed bearing of the intake cam and the fixed bearing of the exhaust cam can be shortened, the pressure loss of the oil passage can be reduced, and the lubricating effect of the lubricating oil can be enhanced. In addition, lubricating oil can also be delivered to the variable valve lubricating oil passage 132 through the main cam delivery oil passage 102 or a branch cam delivery oil passage 104 .

In addition, in other embodiments, a plurality of exhaust cam lubricating oil passages 122 can be directly communicated with the main cam conveying oil passage 102 , and each branch cam conveying oil passage 104 can directly correspond to one intake cam lubricating oil passage 112 Connected. In this way, lubricating oil can be directly delivered to the plurality of exhaust cam lubricating oil passages 122 through the main cam delivery oil passage 102 to directly lubricate the multiple exhaust cam fixed supports; at the same time, the oil passages 104 can be delivered through a plurality of branch cams The lubricating oil may be delivered to the plurality of intake cam lubricating oil passages 112 in a one-to-one correspondence, so as to directly lubricate the plurality of intake cam fixed supports.

In addition, in some embodiments, the above-mentioned camshaft oil passage may further include a camshaft oil inlet oil passage 106 provided on the cover body 100 , and a camshaft outer oil passage 108 provided on the cylinder head 600 . One end of the oil inlet oil passage 106 communicates with the camshaft outer oil passage 108 . The lubricating oil can be delivered to the camshaft oil inlet oil passage 106 through the camshaft external oil passage 108 provided on the cylinder head 600, and the lubricating oil can be delivered to the branch cam delivery oil passage 104 and the main cam through the camshaft oil inlet oil passage 106 Delivery oil passage 102 .

In addition, one branch cam delivery oil passage 104 among the plurality of branch cam delivery oil passages 104 can be set as the branch cam oil inlet oil passage, and the other end of the camshaft oil inlet oil passage 106 can be communicated with the branch cam oil inlet oil passage , and the branch cam oil inlet oil passage is communicated with the main cam conveying oil passage 102 through the first throttle hole 1042 , and the other branch cam conveying oil passages 104 are respectively connected to different positions of the main cam conveying oil passage 102 . Moreover, the branch cam oil inlet oil passage can be arranged close to the end of the cover body 100 away from the OCV solenoid valve 500 , which is more favorable for oil inlet. Moreover, by arranging the first throttle hole 1042 between the oil inlet oil passage of the branch cam and the oil passage 102 of the main cam, it can further ensure that the plurality of cam fixing supports at the end of the engine lubricating system have sufficient lubricating oil pressure. Further avoid abnormal wear of the camshaft journals.

Moreover, the cover body 100 protrudes with longitudinal protrusions and transverse protrusions, the main cam conveying oil passage 102 may be provided in the transverse protrusion, and the branch cam conveying oil passage 104 may be provided in the longitudinal protrusion. The above-mentioned longitudinal protrusions and transverse protrusions can be formed by pre-casting cylindrical bosses on the head cover body 100 of the cylinder head cover. The top of the cover has a "ridge" like structure. By drilling holes in these "ridge" structures to form the main cam feed passages 102 and branch cam feed passages 104, a hollow pipe structure can be formed, and the hollow pipe structure and the "ridge" structure are in the cylinder head. The top of the cover acts as a reinforcing rib, which can effectively improve the NVH problem of the cylinder head cover shell.

In addition, the intake cam lubricating oil passage 112 can be formed by opening a hole at the journal groove of the intake cam holder 110, so that the intake cam lubricating oil passage 112 communicates with the journal groove of the intake cam holder 110, Thereby, the journal of the intake camshaft 200 at the journal groove can be lubricated. In addition, an intake cam lubricating groove that communicates with the intake cam lubricating oil passage 112 can also be provided in the journal groove of the intake cam fixing seat 110 , so that the intake cam lubricating groove is arranged around the journal of the intake camshaft 200 On the peripheral side, the lubrication effect can be further enhanced. In addition, the exhaust cam lubricating oil passage 122 can be formed by opening holes at the journal groove of the exhaust cam fixing seat 120, so that the exhaust cam lubricating oil passage 122 communicates with the journal groove of the exhaust cam fixing seat 120, Thus, the journal of the exhaust camshaft 300 at the journal groove can be lubricated. Similarly, an exhaust cam lubricating groove that communicates with the exhaust cam lubricating oil passage 122 can also be set in the journal groove of the exhaust cam fixing seat 120 , so that the exhaust cam lubricating groove is arranged around the shaft of the exhaust camshaft 300 . On the side of the neck, the lubrication effect can be further enhanced.

Similarly, the arrangement of the variable valve lubricating oil passages 132 on the variable valve mounting seat 130 is similar to that of the intake cam lubricating oil passages 112 on the intake cam mounting seat 110 , and details are not described herein again.

In addition, the solenoid valve delivery oil passage at the end of the cover body 100 may include a solenoid valve main oil delivery passage 144 provided on the cover body 100 , and a solenoid valve oil inlet oil passage communicated with the solenoid valve main delivery oil passage 144 . 148, and the solenoid valve external oil passage 149 provided on the cylinder head 600, the solenoid valve external oil passage 149 communicates with the solenoid valve oil inlet oil passage 148. The lubricating oil can be transported from the cylinder head 600 to the solenoid valve oil inlet oil passage 148 on the cylinder head cover through the solenoid valve external oil passage 149, and then transported from the solenoid valve oil inlet oil passage 148 to the solenoid valve main delivery oil passage 144, It is then transported to the solenoid valve lubricating oil passage of the solenoid valve mounting seat 140 through the solenoid valve main transport oil passage 144 to lubricate the journal of the solenoid valve located in the solenoid valve mounting seat 140 .

In addition, a solenoid valve mounting seat 140 may be provided on both sides of the end of the cover body 100 , and each solenoid valve lubricating oil passage includes a solenoid valve main oil passage 144 which is provided on the cover body 100 and communicates with the solenoid valve main oil passage 144 . The solenoid valve transition oil passage 146, and the solenoid valve main lubricating oil passage 142, which is arranged on the solenoid valve mounting seat 140 and communicated with the solenoid valve transition oil passage 146. One OCV solenoid valve 500 is correspondingly installed at each solenoid valve mounting seat 140 , and one OCV solenoid valve 500 is correspondingly provided at one end of the intake camshaft 200 , and the other OCV solenoid valve 500 is correspondingly provided at one end of the exhaust camshaft 300 . . The lubricating oil in the solenoid valve main delivery oil passage 144 is delivered to the solenoid valve main lubricating oil passage 142 through the solenoid valve transition oil passage 146 to lubricate the solenoid valve journal in the journal groove of the solenoid valve mounting seat 140 . Moreover, the main lubricating oil passage 142 of the solenoid valve can be arranged in the journal groove of the solenoid valve mounting seat 140 on the peripheral side of the solenoid valve journal, so as to lubricate the solenoid valve journal from all sides.

Moreover, the solenoid valve transition oil passage 146 and the solenoid valve main lubricating oil passage 142 may communicate with each other through the second orifice. In this way, the pressure of the lubricating oil in the main lubricating oil passage 142 of the solenoid valve can also be increased, thereby enhancing the lubricating effect on the journal of the solenoid valve. Moreover, the end portion of the cover body 100 may be protruded with an end portion protrusion, and the above-mentioned solenoid valve main oil passage 144 may be provided in the end portion protrusion. Similarly, the above-mentioned end protrusions can also be formed by pre-casting cylindrical bosses on the cover body 100 of the cylinder head cover. The top of the cover has a "ridge" like structure. And by drilling holes in these "ridge"-shaped frames to form the solenoid valve main oil passage 144, a hollow pipe structure can be formed on the cover body 100, and the hollow pipe structure and the "ridge"-shaped frame are in the cylinder head. The top of the cover acts as a reinforcing rib, which can effectively improve the NVH problem of the cylinder head cover shell.

In addition, the above-mentioned cylinder head cover can be made of aluminum alloy material, which is beneficial to improve the casting and machining manufacturability of the cylinder head cover compared with the processing and manufacture of resin material, and facilitates the realization of highly integrated layout design; It can strengthen the strength and mode of the thin-walled parts of the cylinder head cover and improve the NVH performance of the engine.

Furthermore, the present invention provides an automobile engine comprising the integrated cylinder head cover as described above.

In the integrated cylinder head cover provided by the embodiment of the present invention, the camshaft mounting seat, the solenoid valve mounting seat and the variable valve mounting seat are all cast and machined integrally with the cover body, which can improve the safety of the camshaft mounting seat. The high coaxiality of the camshaft hole can reduce the wear of the camshaft journal. Compared with the separate camshaft mounting seat, solenoid valve mounting seat and variable valve mounting seat, it can reduce the cost of parts and improve the assembly efficiency. In addition, the camshaft lubricating oil passages of each cam journal, the variable valve lubricating oil passages of the variable valve lift drive mechanism, and the solenoid valve lubricating oil passages of the OCV solenoid valve are integrated on the cylinder head cover, and the two oil passages are divided into two groups. The single-body arrangement, that is, oil is taken from the central axis of the front end of the cylinder head and the rear end of the intake side respectively, which can not only improve the transient response of the OCV solenoid valve and the variable valve lift drive mechanism, optimize the engine ventilation process, and ensure that the The engine maintains the characteristics of high power and low fuel consumption, and can also effectively shorten the oil supply distance at the camshaft journal to ensure that the camshaft mounting seat on the exhaust side at the end of the engine lubrication system has sufficient lubricating oil pressure, which can further avoid the camshaft The neck is abnormally worn.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, It is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and are not necessarily required or implied Any such actual relationship or sequence exists between these entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above descriptions are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An integrated cylinder head cover, characterized in that, comprising: cover body; The camshaft mounting seat is integrally arranged in the middle of the cover body; The solenoid valve mounting seat is integrally provided at one end of the cover body; a variable valve mounting seat integrally provided at the other end of the cover body; and, The lubricating oil channel structure includes a first lubricating oil channel structure and a second lubricating oil channel structure; Wherein, the first lubricating oil passage structure includes a camshaft oil passage provided in the middle of the cover body, a camshaft lubricating oil passage provided on the camshaft mounting seat, and a camshaft lubricating oil passage provided on the variable The variable valve lubricating oil passage on the valve mounting seat, the camshaft lubricating oil passage and the variable valve lubricating oil passage are both communicated with the camshaft conveying oil passage; the second lubricating oil passage structure includes a The solenoid valve oil passage at the end of the cover body, and the solenoid valve lubricating oil passage provided on the solenoid valve mounting seat, the solenoid valve lubricating oil passage communicates with the solenoid valve oil passage. 2 . The integrated cylinder head cover according to claim 1 , wherein the camshaft mounting seat comprises an intake cam mounting seat and an exhaust cam mounting seat which are arranged side by side on both sides of the cover body, The intake cam fixing seat includes a plurality of intake cam fixing supports sequentially arranged on the cover body, and the exhaust cam fixing seat includes a plurality of exhaust cams sequentially arranged on the cover body a fixed support, and the exhaust cam fixed support corresponds to the intake cam fixed support one-to-one; The camshaft lubricating oil passage includes an intake cam lubricating oil passage provided on each of the intake cam fixed supports, and an exhaust cam lubricating oil passage provided on each of the exhaust cam fixed supports ; The camshaft conveying oil passage includes a main cam conveying oil passage arranged on the cover body, and a plurality of branch cam conveying oil passages communicating with the main cam conveying oil passage, the main cam conveying oil passage The plurality of intake cam lubricating oil passages, the plurality of exhaust cam lubricating oil passages, and the variable valve lubricating oil passages are communicated with a plurality of the branch cam oil passages. 3 . The integrated cylinder head cover according to claim 2 , wherein a plurality of the intake cam lubricating oil passages are in direct communication with the main cam conveying oil passage, and each branch cam conveying oil passage is 3 . communicates directly with one of the exhaust cam lubricating oil passages; or, The plurality of exhaust cam lubricating oil passages are directly connected with the main cam conveying oil passage, and each branch cam conveying oil passage is directly connected with one of the intake cam lubricating oil passages. 4 . The integrated cylinder head cover according to claim 2 , wherein the camshaft delivery oil passage comprises a camshaft oil inlet oil passage provided on the head cover body, and a camshaft oil inlet provided on the cylinder head. 5 . an external oil passage of the camshaft, one end of the oil inlet oil passage of the camshaft is communicated with the external oil passage of the camshaft; One of the branch cam transmission oil passages is set as a branch cam oil inlet oil passage, and the other end of the camshaft oil inlet oil passage is communicated with the branch cam oil inlet oil passage, and The branch cam oil inlet oil passage communicates with the main cam delivery oil passage through a first throttle hole. 5 . The integrated cylinder head cover according to claim 2 , wherein a longitudinal protrusion and a transverse protrusion are protruded from the cover body, and the main cam oil passage is provided on the transverse protrusion. 6 . , the branch cam conveying oil passage is arranged in the longitudinal protrusion. 6 . The integrated cylinder head cover according to claim 2 , wherein the intake cam lubricating oil passage is formed by opening a hole at the journal groove of the intake cam fixing seat, and the exhaust cam The lubricating oil passage is formed by opening holes at the journal groove of the exhaust cam fixing seat. 7. The integrated cylinder head cover according to any one of claims 1 to 6, wherein the solenoid valve oil passage at the end of the head cover body comprises an electromagnetic valve provided on the head cover body The valve main delivery oil passage, the solenoid valve oil inlet oil passage communicated with the solenoid valve main delivery oil passage, and the solenoid valve external oil passage provided on the cylinder head, the solenoid valve external oil passage and the solenoid valve inlet oil channel connection; There is one solenoid valve mounting seat on both sides of the end of the cover body, and each of the solenoid valve lubricating oil passages includes a main oil delivery channel provided on the cover body and communicated with the solenoid valve. A solenoid valve transition oil passage communicated with the passage, and a solenoid valve main lubricating oil passage arranged on the solenoid valve mounting seat and communicated with the solenoid valve transition oil passage. 8 . The integrated cylinder head cover according to claim 7 , wherein the solenoid valve transition oil passage communicates with the solenoid valve main lubricating oil passage through a second throttle hole. 9 . 9 . The integrated cylinder head cover according to claim 7 , wherein an end protrusion is protruded from the end of the cover body, and the solenoid valve main oil passage is provided at the end. 10 . bulging. 10. An automobile engine, characterized by comprising the integrated cylinder head cover as claimed in any one of claims 1 to 9.

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