CN112096537B - Integrated cylinder head cover and automobile engine - Google Patents
Integrated cylinder head cover and automobile engine Download PDFInfo
- Publication number
- CN112096537B CN112096537B CN202010801891.6A CN202010801891A CN112096537B CN 112096537 B CN112096537 B CN 112096537B CN 202010801891 A CN202010801891 A CN 202010801891A CN 112096537 B CN112096537 B CN 112096537B
- Authority
- CN
- China
- Prior art keywords
- oil
- cam
- camshaft
- passage
- solenoid valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/0068—Adaptations for other accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
- F01M2001/064—Camshaft with passageways
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention relates to an integrated cylinder head cover and an automobile engine. The integrated cylinder head cover comprises a cover body, a camshaft mounting seat arranged in the middle of the cover body, an electromagnetic valve mounting seat and a variable valve mounting seat which are respectively arranged at two ends of the cover body, and a first lubricating oil channel structure and a second lubricating oil channel structure; the first lubricating oil channel structure comprises a camshaft conveying oil channel arranged in the middle of the cover body, a camshaft lubricating oil channel arranged on the camshaft mounting seat and a variable valve lubricating oil channel arranged on the variable valve mounting seat, and the camshaft lubricating oil channel and the variable valve lubricating oil channel are both communicated with the camshaft conveying oil channel; the second lubricating oil channel structure comprises an electromagnetic valve conveying oil channel arranged at the end part of the cover body and an electromagnetic valve lubricating oil channel arranged on the electromagnetic valve mounting seat. The invention can solve the problem that the lubricating condition of the camshaft is deteriorated due to the fact that the engine oil demand is increased after the cylinder head cover integrates VVT, VVL and other mechanisms in the related technology.
Description
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
With the increasingly strict national requirements on the oil consumption and emission performance of automobiles, the automobile industry is also continuously advanced, and more new technologies are simultaneously applied to automobile engines, such as VVT (variable valve timing), VVL (variable valve lift) and the like, so that the modern engine structure is more and more complex, and the design concept of integration and modularization is more and more advocated by the industry. On the other hand, the requirements of people on the quality of automobiles are not limited to the satisfaction of space and performance, and low noise and comfort also become an important concern for automobile enterprises. At present, the above-mentioned complex technologies and structures are increasingly integrated into engine cylinder head covers, which has the advantage of reducing the height and complexity of the cylinder head considerably. But also brings new problems: the cylinder head cover belongs to a thin-wall shell part, and the complex structure makes the arrangement and design of a corresponding oil passage difficult. The lubricating oil channel of the cam journal of the existing engine is usually positioned at the tail end of an engine lubricating system, and particularly, the required amount of engine oil is increased after integrating mechanisms such as VVT and VVL, so that the lubricating condition of the camshaft is continuously deteriorated, and the condition of abnormal wear of the cam journal usually occurs.
Disclosure of Invention
The invention provides an integrated cylinder head cover and an automobile engine, and aims to solve the problem that lubricating conditions of a camshaft are deteriorated due to the fact that engine oil demand is increased after a cylinder head cover integrates VVT, VVL and other mechanisms in the related technology.
In a first aspect, the present invention provides an integrated cylinder head cover comprising:
a cover body;
the camshaft mounting seat is integrally arranged in the middle of the cover body;
the electromagnetic valve mounting seat is integrally arranged at one end of the cover body;
the variable valve mounting seat is integrally arranged at the other end of the cover hood body; and the number of the first and second groups,
a lubricating oil passage structure including a first lubricating oil passage structure and a second lubricating oil passage structure;
the first lubricating oil channel structure comprises a camshaft conveying oil channel arranged in the middle of the cover body, a camshaft lubricating oil channel arranged on the camshaft mounting seat and a variable valve lubricating oil channel arranged on the variable valve mounting seat, and the camshaft lubricating oil channel and the variable valve lubricating oil channel are both communicated with the camshaft conveying oil channel; the second lubricating oil channel structure comprises an electromagnetic valve conveying oil channel arranged at the end part of the cover body and an electromagnetic valve lubricating oil channel arranged on the electromagnetic valve mounting seat, and the electromagnetic valve lubricating oil channel is communicated with the electromagnetic valve conveying oil channel;
the camshaft mounting seat comprises an air inlet cam fixing seat and an air outlet cam fixing seat which are arranged on two sides of the cover hood body side by side, the air inlet cam fixing seat comprises a plurality of air inlet cam fixing supports which are sequentially arranged on the cover hood body, the air outlet cam fixing seat comprises a plurality of air outlet cam fixing supports which are sequentially arranged on the cover hood body, and the air outlet cam fixing supports correspond to the air inlet cam fixing supports one by one;
the camshaft lubricating oil channel comprises an air inlet cam lubricating oil channel arranged on each air inlet cam fixed support and an exhaust cam lubricating oil channel arranged on each exhaust cam fixed support; the camshaft oil conveying passage comprises a main cam oil conveying passage arranged on the cover body and a plurality of branch cam oil conveying passages communicated with the main cam oil conveying passage, and the main cam oil conveying passage and the branch cam oil conveying passages are communicated with a plurality of intake cam oil lubricating passages, a plurality of exhaust cam oil lubricating passages and the variable valve oil lubricating passage;
the plurality of intake cam lubricating oil passages are directly communicated with the main cam conveying oil passage, and each branch cam conveying oil passage is directly and correspondingly communicated with one exhaust cam lubricating oil passage; alternatively, the first and second electrodes may be,
the exhaust cam lubricating oil passages are directly communicated with the main cam conveying oil passage, and each branch cam conveying oil passage is directly and correspondingly communicated with one intake cam lubricating oil passage;
the camshaft oil conveying channel comprises a camshaft oil inlet channel arranged on the cover body and a camshaft external oil channel arranged on the cylinder cover, and one end of the camshaft oil inlet channel is communicated with the camshaft external oil channel;
one of the plurality of branch cam conveying oil passages is set as a branch cam oil inlet oil passage, the other end of the cam shaft oil inlet oil passage is 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 through a first throttle hole.
In some embodiments, the head cover body is protrudingly provided with a longitudinal protrusion and a lateral protrusion, the main cam delivery oil passage is provided in the lateral protrusion, and the branch cam delivery oil passage is provided in the longitudinal protrusion.
In some embodiments, the intake cam lubrication passage is formed by opening a hole at a journal groove of the intake cam holder, and the exhaust cam lubrication passage is formed by opening a hole at a journal groove of the exhaust cam holder.
In some embodiments, the solenoid valve oil delivery passage at the end of the head cover body includes a solenoid valve main oil delivery passage provided on the head cover body, a solenoid valve oil inlet passage communicating with the solenoid valve main oil delivery passage, and a solenoid valve outer oil passage provided on the cylinder head, the solenoid valve outer oil passage communicating with the solenoid valve oil inlet passage;
the tip both sides of housing body respectively are equipped with one solenoid valve mount pad, every solenoid valve lubrication oil duct is all including locating on the housing body, and with the solenoid valve transition oil duct of solenoid valve main transport oil duct intercommunication, and locate on the solenoid valve mount pad, and with the solenoid valve main lubrication oil duct of solenoid valve transition oil duct intercommunication.
In some embodiments, the solenoid valve transition oil passage is in communication with the solenoid valve main oil gallery through a second orifice.
In some embodiments, an end protrusion is protruded on an end of the cap body, and the solenoid valve main oil delivery passage is provided in the end protrusion.
In a second aspect, the invention provides an automotive engine comprising an integrated cylinder head cover as described above.
The technical scheme provided by the invention has the beneficial effects that: the lubricating effect on the cam shaft neck is ensured, and the abrasion of the cam shaft neck is reduced.
The embodiment of the invention provides an integrated cylinder head cover, wherein a camshaft mounting seat, an electromagnetic valve mounting seat and a variable valve mounting seat and a cover body adopt integrated casting and machining processes, the coaxiality of a camshaft hole in the camshaft mounting seat can be improved, the abrasion of a cam shaft neck can be reduced, and compared with a separated camshaft mounting seat, an electromagnetic valve mounting seat and a variable valve mounting seat, the part cost can be reduced and the assembly efficiency can be improved. And the cylinder cover is integrated with the camshaft lubricating oil channel of each cam journal and the variable valve lubricating oil channel of the variable valve lift driving mechanism, the electromagnetic valve lubricating oil channel of the OCV electromagnetic valve and two groups of oil channels are arranged in a split mode, namely oil is respectively taken from the central axis of the front end of the top of the cylinder cover and the rear end of the air inlet side, so that the transient response of the OCV electromagnetic valve and the variable valve lift driving mechanism can be improved, the air exchange process of an engine is optimized, the engine is guaranteed to keep high power performance and low oil consumption, the oil supply distance of the cam journal can be effectively shortened, the sufficient lubricating oil pressure of the camshaft mounting seat on the exhaust side at the tail end of the engine lubricating system is guaranteed, and the abnormal abrasion of the cam journal can be further avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an integrated cylinder head cover (during assembly) according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an integrated cylinder head cover (during assembly) according to an embodiment of the present invention;
fig. 3 is a first schematic perspective view illustrating a cover body of an integrated cylinder head cover according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a cover body of the integrated cylinder head cover according to the embodiment of the invention;
fig. 5 is a cross-sectional structural view of a head cover body of the integrated cylinder head cover according to the embodiment of the present invention;
fig. 6 is a schematic longitudinal sectional view of a head cover body (at a position of a solenoid valve mounting seat) of the integrated cylinder head cover according to the embodiment of the present invention;
fig. 7 is a schematic longitudinal sectional structural view of a head cover body (at a variable valve mount position) of the integrated cylinder head cover according to the embodiment of the invention;
fig. 8 is a partially enlarged structural view of a position of the first orifice of fig. 4.
In the figure: 100. a cover body; 102. a main cam oil delivery passage; 104. a branch cam oil delivery passage; 1042. a first orifice; 106. the camshaft is provided with an oil inlet duct; 108. an external oil passage of the camshaft; 110. an air inlet cam fixing seat; 112. an air inlet cam lubricating oil channel; 120. an exhaust cam fixing seat; 122. an exhaust cam lubricating oil passage; 130. a variable valve mount; 132. a variable valve lubrication oil passage; 140. a solenoid valve mounting seat; 142. a main lubricating oil passage of the electromagnetic valve; 144. the electromagnetic valve main oil conveying passage; 146. a solenoid valve transition oil passage; 148. an oil inlet duct of the electromagnetic valve; 149. an external oil passage of the solenoid valve; 200. an intake camshaft; 300. an exhaust camshaft; 400. a variable valve lift drive mechanism; 500. an OCV solenoid valve; 600. a cylinder head; 700. an ignition coil; 800. and an engine oil filling port cover.
Detailed Description
In order to make the objects, 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 drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides an integrated cylinder head cover and an automobile engine, and aims to solve the problem that lubricating conditions of a camshaft are deteriorated due to the fact that engine oil demand is increased after a cylinder head cover integrates VVT, VVL and other mechanisms in the related technology. Namely, the invention can ensure the lubricating effect on the cam shaft neck and reduce the abrasion of the cam shaft neck.
Specifically, as shown in fig. 1 to 4, the integrated cylinder head cover provided by the present invention includes a cover body 100, camshaft mounting seats (110, 120) integrally provided at a middle portion of the cover body 100, a solenoid valve mounting seat 140 integrally provided at one end of the cover body 100, a variable valve mounting seat 130 integrally provided at the other end of the cover body 100, and a lubrication oil passage structure provided on the cover body 100, the camshaft mounting seats (110, 120), the solenoid valve mounting seat 140, and the variable valve mounting seat 130. The camshaft mounts (110, 120) may be used to mount and fix the intake camshaft 200 or the exhaust camshaft 300 to the middle of the head cover body 100, the solenoid valve mount 140 may mount the OCV solenoid valve 500 to one end of the head cover body 100, and the variable valve mount 130 may mount and fix the variable valve lift driving mechanism 400 to the other end of the head cover body 100, so as to integrate the intake camshaft 200, the exhaust camshaft 300, the OCV solenoid valve 500, and the variable valve lift driving mechanism 400 to the cylinder head cover. In addition, the integrated cylinder head cover not only integrates the camshaft mounting seats for mounting the intake camshaft 200 and the exhaust camshaft 300, but also integrates the mounting carriers for fixing the engine oil filling port cover 800, the oil-gas separation chamber, the ignition coil 700, the phase sensor and the peripheral component bracket.
Furthermore, the camshaft mounting blocks (110, 120) and the cylinder head cover are integrally cast and machined, so that the coaxiality of the camshaft holes in the camshaft mounting blocks (110, 120) can be improved, the wear of the cam journals of the intake camshaft 200 (or the exhaust camshaft 300) mounted on the camshaft mounting blocks (110, 120) can be reduced, and the part cost and the assembly efficiency can be reduced compared with those of a separate type camshaft mounting block. Similarly, the solenoid valve mounting seat 140 and the variable valve mounting seat 130 are integrally cast and machined with the cylinder head cover, so that the coaxiality of the shaft holes in the solenoid valve mounting seat 140 (or the variable valve mounting seat 130) can be improved, and the abrasion to parts can be reduced. In addition, the layout design mode that the parts are highly integrated on the cylinder head cover correspondingly reduces the layout and processing difficulty of the cylinder head and provides a feasible scheme for the design requirement of the increasingly miniaturized engine.
Also, the above-described lubricating oil passage structure includes a first lubricating oil passage structure that provides lubrication for the intake camshaft 200 (or the exhaust camshaft 300) and the variable valve lift driving mechanism 400, and a second lubricating oil passage structure that provides lubrication for the OCV solenoid valve 500. Through two lubricating oil channel structures of a first lubricating oil channel structure and a second lubricating oil channel structure which are arranged in a split mode, oil can be respectively taken from two sides of the top of the cylinder cover 600 (close to the cam shaft and the OCV electromagnetic valve 500 respectively), and the oil is respectively conveyed to the cam shaft mounting seats (110, 120) and the electromagnetic valve mounting seat 140 to lubricate the air inlet cam shaft 200 (or the air outlet cam shaft 300) and the OCV electromagnetic valve 500 respectively. The split type oil supply mode can effectively shorten the oil supply distance of the cam shaft neck, ensure that the camshaft mounting seat at the tail end of the engine lubricating system has enough lubricating oil pressure, and avoid abnormal abrasion of the cam shaft neck.
Specifically, as shown in fig. 5 to 8, the first lubricating oil passage structure includes a camshaft oil delivery passage provided in the middle of the head cover body 100, camshaft oil passages (112, 122) provided in the camshaft mounting seats (110, 120), and a variable valve oil passage 132 provided in the variable valve mounting seat 130, and the camshaft oil passages (112, 122) and the variable valve oil passage 132 are both communicated with the camshaft oil delivery passage. Lubricating oil can be delivered to the camshaft lubricating oil passages (112, 122) through the camshaft delivery oil passages to lubricate camshaft holes of the camshaft mounting seats (110, 120), so that journals of the intake camshaft 200 (or the exhaust camshaft 300) installed on the camshaft mounting seats (110, 120) are lubricated to reduce wear of the journals of the intake camshaft 200 (or the exhaust camshaft 300); further, the variable valve lift driving mechanism 400 may be lubricated by supplying lubricating oil to the variable valve lubricating oil passage 132 through the camshaft supply oil passage to lubricate the shaft hole of the variable valve mount 130.
Also, the second lubricating oil gallery structure may include a solenoid valve oil delivery passage provided at an end portion of the head cover body 100, and a solenoid valve oil gallery provided on the solenoid valve mounting seat 140, the solenoid valve oil gallery being communicated with the solenoid valve oil delivery passage. The electromagnetic valve lubricating oil channel can be supplied with lubricating oil through the electromagnetic valve delivery oil channel to lubricate the shaft hole of the electromagnetic valve mounting seat 140, and the OCV electromagnetic valve 500 can be lubricated.
Further, in some embodiments, the camshaft mounting seats (110, 120) may include an intake cam fixing seat 110 and an exhaust cam fixing seat 120 that are disposed side by side on both sides of the head cover body 100, wherein the intake cam 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 and the exhaust camshaft 300 may be fixed side by side on the cylinder head cover by the intake cam fixing seat 110 and the exhaust cam fixing seat 120. Moreover, the intake cam fixing seat 110 may include a plurality of intake cam fixing supports sequentially disposed on the head cover body 100, and since the intake camshaft 200 is long, the intake camshaft 200 may be supported and fixed from a plurality of positions in the axial direction by the plurality of intake cam fixing supports; further, the exhaust cam fixing base 120 may include a plurality of exhaust cam fixing seats sequentially formed on the head cover body 100, and similarly, since the exhaust camshaft 300 is long, the exhaust camshaft 300 may be supported and fixed from a plurality of positions in the axial direction by the plurality of exhaust cam fixing seats. Moreover, still can make exhaust cam fixed bolster and intake cam fixed bolster one-to-one set up, can make a plurality of exhaust cam fixed bolsters and a plurality of intake cam fixed bolsters correspond each other, be convenient for like this set up a plurality of exhaust cam fixed bolsters and a plurality of intake cam fixed bolster into the multirow to make every exhaust cam fixed bolster and an intake cam fixed bolster correspond and establish into one row, can establish exhaust cam fixed bolster and the intake cam fixed bolster that are located one row as an organic whole. In addition, the variable valve mounting seat 130 may be provided at an end of the intake cam fixing seat 110 and arranged side by side with one exhaust cam fixing support.
Also, the camshaft oil passage may include an intake cam oil passage 112 provided on each intake cam fixing support, and an exhaust cam oil passage 122 provided on each exhaust cam fixing support. Lubricating oil can be supplied to the camshaft hole of the intake cam fixed support through the intake cam lubricating oil passage 112 so as to lubricate the journal of the intake camshaft 200 on the intake cam fixed support; and lubricating oil is supplied to the camshaft holes of the exhaust cam fixing mount through the exhaust cam lubricating oil passage 122 to lubricate the journal of the exhaust camshaft 300 seated on the exhaust cam fixing mount. Also, the camshaft conveyance oil passage includes a main cam conveyance oil passage 102 provided on the head cover body 100, and a plurality of branch cam conveyance oil passages 104 communicating with the main cam conveyance oil passage 102, and the main cam conveyance oil passage 102 and the plurality of branch cam conveyance oil passages 104 communicate with a plurality of intake cam lubrication oil passages 112, a plurality of exhaust cam lubrication oil passages 122, and a variable valve lubrication oil passage 132. Lubricating oil may be delivered to each of the branch cam delivery oil passages 104 via the main cam delivery oil passage 102, and may be delivered to the intake cam oil passage 112, the exhaust cam oil passage 122, and the variable valve oil passage 132 via the branch cam delivery oil passages 104 and the main cam delivery oil passage 102.
Further, in some embodiments, a plurality of intake cam oil galleries 112 may each be in direct communication with the main cam oil delivery passage 102, and each branch cam oil delivery passage 104 may be in direct communication with one exhaust cam oil gallery 122. Lubricating oil can be directly conveyed to the plurality of intake cam lubricating oil passages 112 through the main cam conveying oil passage 102 so as to directly lubricate the plurality of intake cam fixed supports; meanwhile, the lubricating oil can be respectively delivered to the exhaust cam lubricating oil passages 122 through the branch cam delivery oil passages 104 in a one-to-one correspondence manner, so that the exhaust cam fixed supports can be directly lubricated. Therefore, the length of the oil duct for conveying lubricating oil to the air inlet cam fixed support and the exhaust cam fixed support can be shortened, the pressure loss of the oil duct is reduced, and the lubricating effect of the lubricating oil can be enhanced. Further, lubrication oil may also be delivered to the variable valve lubrication oil passage 132 through the main cam delivery oil passage 102 or one of the branch cam delivery oil passages 104.
Further, in other embodiments, a plurality of exhaust cam gallery 122 may be in direct communication with main cam delivery gallery 102, and each branch cam delivery gallery 104 may be in direct communication with a corresponding intake cam gallery 112. That is, the lubricating oil can be directly delivered to the exhaust cam lubricating oil channels 122 through the main cam delivery oil channel 102, so as to directly lubricate the exhaust cam fixed supports; meanwhile, the lubricating oil can be respectively delivered to the plurality of intake cam lubricating oil passages 112 through the plurality of branch cam delivery oil passages 104 in a one-to-one correspondence manner, so that the plurality of intake cam fixed supports can be directly lubricated.
Further, in some embodiments, the above-described camshaft conveyance oil passage may further include a camshaft oil inlet passage 106 provided on the head cover body 100, and a camshaft outer oil passage 108 provided on the cylinder head 600, one end of the camshaft oil inlet passage 106 being in communication with the camshaft outer oil passage 108. The lubricating oil is delivered to the camshaft intake oil passage 106 through the camshaft external oil passage 108 provided on the cylinder head 600, and is delivered to the branch cam delivery oil passage 104 and the main cam delivery oil passage 102 through the camshaft intake oil passage 106.
Furthermore, one branch cam conveying oil passage 104 of the plurality of branch cam conveying oil passages 104 may be set as a branch cam oil inlet passage, and the other end of the camshaft oil inlet passage 106 is communicated with the branch cam oil inlet passage, and the branch cam oil inlet 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 communicated with and disposed at different positions of the main cam conveying oil passage 102. Moreover, the branch cam oil inlet passage can be arranged close to one end, far away from the OCV electromagnetic valve 500, of the cover body 100, and oil inlet is facilitated. Moreover, the first throttling hole 1042 is arranged between the branch cam oil inlet oil passage and the main cam conveying oil passage 102, so that a plurality of cam fixed supports at the tail end of an engine lubricating system can be further ensured to have enough lubricating oil pressure, and abnormal abrasion of cam journals can be further avoided.
Also, the cap body 100 is protrudingly provided with a longitudinal protrusion and a lateral protrusion, the main cam delivery oil passage 102 may be provided in the lateral protrusion, and the branch cam delivery oil passage 104 may be provided in the longitudinal protrusion. The above-described longitudinal protrusions and lateral protrusions may be formed by precasting columnar bosses on the head cover body 100 of the cylinder head cover, which form protrusions on the inner wall surface and the outer surface of the head cover body 100, thereby forming a "ridge" -like framework on the top of the cylinder head cover. The main cam conveying oil passage 102 and the branch cam conveying oil passage 104 are formed by drilling holes in the ridge-shaped frameworks, so that a hollow pipeline structure can be formed, and the hollow pipeline structure and the ridge-shaped frameworks play a role of reinforcing ribs on the top of the cylinder head cover, so that the NVH problem of the cylinder head cover shell can be effectively improved.
In addition, the intake cam lubrication oil passage 112 may be formed by opening a hole at a journal groove of the intake cam fixing seat 110, so that the intake cam lubrication oil passage 112 communicates with the journal groove of the intake cam fixing seat 110, and thus, a journal of the intake camshaft 200 located at the journal groove may be lubricated. In addition, an intake cam lubrication groove communicated with the intake cam lubrication passage 112 may be further disposed in the journal groove of the intake cam fixing seat 110, so that the intake cam lubrication groove is annularly disposed on the periphery of the journal of the intake camshaft 200, thereby further enhancing the lubrication effect. In addition, the exhaust cam lubrication oil passage 122 may be formed by opening a hole at a journal groove of the exhaust cam fixing base 120, so that the exhaust cam lubrication oil passage 122 communicates with the journal groove of the exhaust cam fixing base 120, thereby lubricating a journal of the exhaust camshaft 300 located at the journal groove. Similarly, an exhaust cam lubrication groove communicated with the exhaust cam lubrication oil channel 122 may be further disposed in the journal groove of the exhaust cam fixing seat 120, so that the exhaust cam lubrication groove is annularly disposed around the journal of the exhaust cam shaft 300, and the lubrication effect may be further enhanced.
Similarly, the arrangement of the variable valve oil passage 132 on the variable valve mounting seat 130 is similar to the arrangement of the intake cam oil passage 112 on the intake cam fixing seat 110, and is not described herein again.
Further, the above-described solenoid valve delivery oil passage at the end portion of the head cover body 100 may include a solenoid valve main delivery oil passage 144 provided on the head cover body 100, a solenoid valve oil inlet oil passage 148 communicated with the solenoid valve main delivery oil passage 144, and a solenoid valve external oil passage 149 provided on the cylinder head 600, the solenoid valve external oil passage 149 being communicated with the solenoid valve oil inlet oil passage 148. Lubricating oil can be conveyed 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, then conveyed to the solenoid valve main conveying oil passage 144 through the solenoid valve oil inlet oil passage 148, and then conveyed to the solenoid valve lubricating oil passage of the solenoid valve mounting seat 140 through the solenoid valve main conveying oil passage 144, so as to lubricate the journal of the solenoid valve in the solenoid valve mounting seat 140.
Moreover, two sides of the end of the head cover body 100 may be respectively provided with a solenoid valve mounting seat 140, and each solenoid valve oil gallery includes a solenoid valve transition oil passage 146 disposed on the head cover body 100 and communicated with the solenoid valve main oil conveying passage 144, and a solenoid valve main oil gallery 142 disposed on the solenoid valve mounting seat 140 and communicated with the solenoid valve transition oil passage 146. One OCV solenoid valve 500 is installed at each solenoid valve mounting seat 140, and one OCV solenoid valve 500 is installed at one end of the intake camshaft 200, and the other OCV solenoid valve 500 is installed at one end of the exhaust camshaft 300. The lubricating oil in the solenoid valve main oil delivery gallery 144 is delivered into the solenoid valve main oil gallery 142 through the solenoid valve transition oil gallery 146 to lubricate the solenoid valve journal in the journal groove of the solenoid valve mounting seat 140. Furthermore, the main lubricant passage 142 of the solenoid valve may be disposed around the journal groove of the solenoid valve mounting seat 140 on the periphery of the journal of the solenoid valve, so as to lubricate the journal of the solenoid valve from the periphery.
Also, the solenoid valve transition oil passage 146 and the solenoid valve main lubrication passage 142 may be in communication via a second orifice. In this way, the pressure of the lubricating oil in the main lubricating oil channel 142 of the electromagnetic valve can be increased, and the lubricating effect on the journal of the electromagnetic valve is enhanced. Also, an end protrusion may be protruded at an end of the cap body 100, and the solenoid valve main oil delivery passage 144 may be provided in the end protrusion. Similarly, the end protrusions may be formed by precasting columnar bosses on the head cover body 100 of the cylinder head cover, and the columnar bosses form protrusions on the inner wall surface and the outer surface of the head cover body 100, so as to form a "ridge" -shaped framework on the top of the cylinder head cover. The hollow pipeline structure can be formed on the head cover body 100 by drilling holes in the ridge-shaped frameworks to form the main delivery oil passage 144 of the electromagnetic valve, and the hollow pipeline structure and the ridge-shaped frameworks play a role of reinforcing ribs at the top of the cylinder head cover, so that the NVH problem of the cylinder head cover shell can be effectively improved.
In addition, the cylinder head cover can be processed and manufactured by adopting an aluminum alloy material, and compared with the processing and manufacturing of a resin material, the cylinder head cover is beneficial to improving the casting and machining manufacturability of the cylinder head cover and is convenient for realizing the highly integrated arrangement design; but also can strengthen the strength and the mode of the thin-wall parts of the cylinder head cover and improve the NVH performance of the engine.
Furthermore, the invention provides an automotive engine comprising an integrated cylinder head cover as described above.
According to the integrated cylinder head cover provided by the embodiment of the invention, the camshaft mounting seat, the electromagnetic valve mounting seat and the variable valve mounting seat are integrally cast and machined with the cover body, so that the coaxiality of a camshaft hole in the camshaft mounting seat can be improved, the abrasion of a cam journal can be reduced, and compared with a separated camshaft mounting seat, an electromagnetic valve mounting seat and a variable valve mounting seat, the part cost can be reduced and the assembly efficiency can be improved. And the cylinder cover is integrated with the camshaft lubricating oil channel of each cam journal and the variable valve lubricating oil channel of the variable valve lift driving mechanism, the electromagnetic valve lubricating oil channel of the OCV electromagnetic valve and two groups of oil channels are arranged in a split mode, namely oil is respectively taken from the central axis of the front end of the top of the cylinder cover and the rear end of the air inlet side, so that the transient response of the OCV electromagnetic valve and the variable valve lift driving mechanism can be improved, the air exchange process of an engine is optimized, the engine is guaranteed to keep high power performance and low oil consumption, the oil supply distance of the cam journal can be effectively shortened, the sufficient lubricating oil pressure of the camshaft mounting seat on the exhaust side at the tail end of the engine lubricating system is guaranteed, and the abnormal abrasion of the cam journal can be further avoided.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice 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 applied to 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 (7)
1. An integrated cylinder head cover, comprising:
a cover body;
the camshaft mounting seat is integrally arranged in the middle of the cover body;
the electromagnetic valve mounting seat is integrally arranged at one end of the cover body;
the variable valve mounting seat is integrally arranged at the other end of the cover hood body; and the number of the first and second groups,
a lubricating oil passage structure including a first lubricating oil passage structure and a second lubricating oil passage structure;
the first lubricating oil channel structure comprises a camshaft conveying oil channel arranged in the middle of the cover body, a camshaft lubricating oil channel arranged on the camshaft mounting seat and a variable valve lubricating oil channel arranged on the variable valve mounting seat, and the camshaft lubricating oil channel and the variable valve lubricating oil channel are both communicated with the camshaft conveying oil channel; the second lubricating oil channel structure comprises an electromagnetic valve conveying oil channel arranged at the end part of the cover body and an electromagnetic valve lubricating oil channel arranged on the electromagnetic valve mounting seat, and the electromagnetic valve lubricating oil channel is communicated with the electromagnetic valve conveying oil channel;
the camshaft mounting seat comprises an air inlet cam fixing seat and an air outlet cam fixing seat which are arranged on two sides of the cover hood body side by side, the air inlet cam fixing seat comprises a plurality of air inlet cam fixing supports which are sequentially arranged on the cover hood body, the air outlet cam fixing seat comprises a plurality of air outlet cam fixing supports which are sequentially arranged on the cover hood body, and the air outlet cam fixing supports correspond to the air inlet cam fixing supports one by one;
the camshaft lubricating oil channel comprises an air inlet cam lubricating oil channel arranged on each air inlet cam fixed support and an exhaust cam lubricating oil channel arranged on each exhaust cam fixed support; the camshaft oil conveying passage comprises a main cam oil conveying passage arranged on the cover body and a plurality of branch cam oil conveying passages communicated with the main cam oil conveying passage, and the main cam oil conveying passage and the branch cam oil conveying passages are communicated with a plurality of intake cam oil lubricating passages, a plurality of exhaust cam oil lubricating passages and the variable valve oil lubricating passage;
the plurality of intake cam lubricating oil passages are directly communicated with the main cam conveying oil passage, and each branch cam conveying oil passage is directly and correspondingly communicated with one exhaust cam lubricating oil passage; alternatively, the first and second electrodes may be,
the exhaust cam lubricating oil passages are directly communicated with the main cam conveying oil passage, and each branch cam conveying oil passage is directly and correspondingly communicated with one intake cam lubricating oil passage;
the camshaft oil conveying channel comprises a camshaft oil inlet channel arranged on the cover body and a camshaft external oil channel arranged on the cylinder cover, and one end of the camshaft oil inlet channel is communicated with the camshaft external oil channel;
one of the plurality of branch cam conveying oil passages is set as a branch cam oil inlet oil passage, the other end of the cam shaft oil inlet oil passage is 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 through a first throttle hole.
2. The integrated head cover according to claim 1, characterized in that the cover body is protrudingly provided with a longitudinal projection and a lateral projection, the main cam delivery oil passage being provided in the lateral projection, and the branch cam delivery oil passage being provided in the longitudinal projection.
3. The integrated head cover according to claim 1, wherein the intake cam oil gallery is formed by opening a hole at a journal groove of the intake cam holder, and the exhaust cam oil gallery is formed by opening a hole at a journal groove of the exhaust cam holder.
4. The integrated cylinder head cover according to any one of claims 1 to 3, wherein the solenoid valve delivery oil passage at the end of the cover body includes a solenoid valve main delivery oil passage provided on the cover body, a solenoid valve oil inlet oil passage communicated with the solenoid valve main delivery oil passage, and a solenoid valve external oil passage provided on the cylinder head, the solenoid valve external oil passage being communicated with the solenoid valve oil inlet oil passage;
the tip both sides of housing body respectively are equipped with one solenoid valve mount pad, every solenoid valve lubrication oil duct is all including locating on the housing body, and with the solenoid valve transition oil duct of solenoid valve main transport oil duct intercommunication, and locate on the solenoid valve mount pad, and with the solenoid valve main lubrication oil duct of solenoid valve transition oil duct intercommunication.
5. The integrated head cover according to claim 4, wherein the solenoid valve transition oil passage communicates with the solenoid valve main oil passage through a second orifice.
6. The integrated head cover according to claim 4, characterized in that an end projection is protrudingly provided on an end portion of the cover body, and the solenoid valve main delivery oil passage is provided in the end projection.
7. An automotive engine, characterized by comprising the integrated cylinder head cover according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801891.6A CN112096537B (en) | 2020-08-11 | 2020-08-11 | Integrated cylinder head cover and automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801891.6A CN112096537B (en) | 2020-08-11 | 2020-08-11 | Integrated cylinder head cover and automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112096537A CN112096537A (en) | 2020-12-18 |
| CN112096537B true CN112096537B (en) | 2021-08-31 |
Family
ID=73752796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010801891.6A Active CN112096537B (en) | 2020-08-11 | 2020-08-11 | Integrated cylinder head cover and automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112096537B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664290A (en) * | 2020-12-21 | 2021-04-16 | 中国北方发动机研究所(天津) | Box camshaft support frame of engine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7571701B1 (en) * | 2008-02-01 | 2009-08-11 | Gm Global Technology Operations, Inc. | Camshaft cover with integrated intake manifold |
| JP5119029B2 (en) * | 2008-04-10 | 2013-01-16 | 川崎重工業株式会社 | engine |
| CN102278156A (en) * | 2010-06-13 | 2011-12-14 | 北汽福田汽车股份有限公司 | Engine assembly |
| CN102705103B (en) * | 2012-05-31 | 2014-11-12 | 长城汽车股份有限公司 | Integrated type engine air cylinder head cover |
| CN103790729B (en) * | 2012-10-30 | 2016-02-03 | 重庆长安汽车股份有限公司 | A kind of mini engine valve mechanism cover |
| CN103982316A (en) * | 2014-05-14 | 2014-08-13 | 力帆实业(集团)股份有限公司 | Engine assembly |
| CN106321277B (en) * | 2015-07-10 | 2018-09-11 | 广州汽车集团股份有限公司 | A kind of valve mechanism cover oil duct assembly of automobile engine |
| CN204984524U (en) * | 2015-07-28 | 2016-01-20 | 重庆长安汽车股份有限公司 | Engine variable valve lift system oil circuit |
| CN110685767A (en) * | 2019-10-23 | 2020-01-14 | 昆明云内动力股份有限公司 | Camshaft bearing seat |
| CN111173643B (en) * | 2019-12-31 | 2021-03-16 | 潍柴动力股份有限公司 | Cylinder head cover and engine with same |
-
2020
- 2020-08-11 CN CN202010801891.6A patent/CN112096537B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112096537A (en) | 2020-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1974127B1 (en) | Camshaft support structure of an internal combustion engine and assembly method thereof | |
| US8371260B2 (en) | Cylinder head drain and vent | |
| US7673604B2 (en) | Engine | |
| US20080025658A1 (en) | Friction-bearing assembly for a rotating shaft | |
| US7942118B2 (en) | Oil system for active fuel management on four valve engines | |
| CN101379273B (en) | Oil passage structure of valve operating system | |
| CN112096537B (en) | Integrated cylinder head cover and automobile engine | |
| US5887565A (en) | Lubricating oil passage structure for engine | |
| CN101482044B (en) | Engine camshaft bearing cover | |
| CN100532814C (en) | Car engine camshaft bearing cap | |
| US6378483B1 (en) | Lubrication system for four-stroke engine | |
| JPH05180067A (en) | Cylinder head for internal combustion engine | |
| CN110725726A (en) | Valve train pivot bracket assembly with multi-function cover | |
| CN214403783U (en) | Oil circuit structure of engine cylinder cover system | |
| US6505588B2 (en) | Internal combustion engine with at least two cam shafts arranged adjacent to each other in the cylinder head, particularly with an intake camshaft and an exhaust camshaft | |
| CN111173643B (en) | Cylinder head cover and engine with same | |
| CN216691274U (en) | Cylinder head oil circuit structure and automobile engine | |
| US6382171B1 (en) | Lubricating device for internal combustion engine | |
| EP1785637A1 (en) | Friction-bearing assembly for a rotating shaft | |
| JPH07139421A (en) | Oil path structure of oil-cooled engine | |
| CN216588752U (en) | Camshaft and rocking arm axle mounting structure, engine and engineering equipment | |
| CN113710878B (en) | One-piece camshaft bearing cap | |
| CN217080593U (en) | Lubricating mechanism for cylinder head of motorcycle engine | |
| CN211777638U (en) | Engine lubricating oil way | |
| CN212985313U (en) | Camshaft cover, camshaft assembly, two-cylinder engine and all-terrain vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |