CN111664020A - Cylinder cover with cylinder pressure sensor sleeve and mounting method thereof - Google Patents
Cylinder cover with cylinder pressure sensor sleeve and mounting method thereof Download PDFInfo
- Publication number
- CN111664020A CN111664020A CN202010408100.3A CN202010408100A CN111664020A CN 111664020 A CN111664020 A CN 111664020A CN 202010408100 A CN202010408100 A CN 202010408100A CN 111664020 A CN111664020 A CN 111664020A
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- Prior art keywords
- sleeve
- cylinder
- sand core
- cylinder head
- pressure sensor
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Classifications
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- 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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
- F02B77/085—Safety, indicating or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
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- 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
- F02F2200/00—Manufacturing
- F02F2200/06—Casting
Abstract
The invention relates to a cylinder cover with a cylinder pressure sensor sleeve and an installation method thereof, wherein the installation method comprises the following steps: a cylinder head body for sealing a cylinder of an engine; the upper part of the lower sleeve is provided with an upper sleeve mounting hole, and the lower part of the lower sleeve is provided with a sensor mounting hole; the upper sleeve is arranged in the upper sleeve mounting hole; and the cylinder pressure sensor is fixed in the sensor mounting hole. According to the cylinder cover with the cylinder pressure sensor sleeve and the installation method thereof, the data acquired by the cylinder pressure sensor is more accurate, the workload is low, and the working difficulty is reduced.
Description
Technical Field
The invention relates to the field of engine parts, in particular to a cylinder cover with a cylinder pressure sensor sleeve and an installation method of the cylinder cover with the cylinder pressure sensor sleeve.
Background
At present, in the design and research and development processes of an engine, measurement of pressure in an air cylinder is necessary work, knocking of the engine can be judged based on combustion explosion pressure in the air cylinder, thermodynamic analysis is carried out, and a P-V diagram of the engine is obtained.
In the related technology, a cylinder pressure sensor is integrated on a spark plug, namely the cylinder pressure sensor is directly installed on the spark plug hole on a cylinder cover, and the cylinder pressure sensor is fixed on the cylinder cover, so that the purpose of testing the cylinder pressure is achieved.
However, since the heat value around the spark plug is large, the spark plug is affected by the high-voltage coil and high temperature, and the data collected by the cylinder pressure sensor may deviate from the actual data, the data collected by the cylinder pressure sensor in the cylinder is inaccurate, and the spark plug is required to be modified properly, which increases difficulty and workload.
Disclosure of Invention
The embodiment of the invention provides a cylinder cover with a cylinder pressure sensor sleeve and an installation method thereof, and aims to solve the problems that data acquired by a cylinder pressure sensor is deviated from actual data due to the influence of temperature, the workload is large, and the difficulty is large in the related art.
In a first aspect, a cylinder head with a cylinder pressure sensor sleeve is provided, comprising: a cylinder head body for sealing a cylinder of an engine; the upper part of the lower sleeve is provided with an upper sleeve mounting hole, and the lower part of the lower sleeve is provided with a sensor mounting hole; the upper sleeve is arranged in the upper sleeve mounting hole; and the cylinder pressure sensor is fixed in the sensor mounting hole.
In some embodiments, the cylinder head body has a cylinder head water passage partition and a combustion chamber partition, and the lower sleeve is integrally disposed on the cylinder head water passage partition and the combustion chamber partition.
In some embodiments, the outer circumferential surface of the lower sleeve is provided with grid stripes for exhaust in the process that the lower sleeve is integrally arranged on the cylinder head body.
In some embodiments, a pressure tapping hole is arranged below the sensor mounting hole.
In a second aspect, there is provided a method of mounting a cylinder head with a cylinder pressure sensor sleeve as described above, comprising the steps of: a lower plug is arranged in a sensor mounting hole at the lower part of the lower sleeve, and an upper plug is arranged in an upper sleeve mounting hole at the upper part of the lower sleeve; placing an air passage sand core, an oil chamber sand core and a water jacket sand core on a lower die of the cylinder cover die, wherein the oil chamber sand core and the water jacket sand core are respectively provided with an assembling hole; penetrating the combination body of the lower sleeve, the upper plug and the lower plug into the assembly holes corresponding to the oil chamber sand core and the water jacket sand core; closing the cylinder cover die, and pouring and forming a cylinder cover body to enable the lower sleeve and the cylinder cover body to be integrated; and taking out the upper plug and the lower plug, installing an upper sleeve into the upper sleeve installation hole, and installing a cylinder pressure sensor into the sensor installation hole.
In some embodiments, before the assembly of the lower sleeve, the upper plug and the lower plug is arranged in the corresponding assembly holes of the oil chamber sand core and the water jacket sand core, the assembly is placed in a heating furnace and heated to 250-400 ℃.
In some embodiments, before the oil chamber sand core and the water jacket sand core are placed on the cylinder head mold lower die, sand on the oil chamber sand core and the water jacket sand core is manually removed by using a sand core dedicated file to form the assembly holes, or the assembly holes are formed by machining.
In some embodiments, after the assembly of the lower sleeve, the upper plug and the lower plug is inserted into the assembly holes corresponding to the oil chamber sand core and the water jacket sand core, asbestos is filled in the gap between the lower sleeve and the assembly holes.
In some embodiments, after the casting of the cylinder head body is completed, the upper plug is taken out first, and then the lower plug is taken out.
In some embodiments, the assembled cylinder head cover is mounted to the cylinder head body before the upper sleeve is mounted, and the upper sleeve is then secured within the upper sleeve mounting hole through the cylinder head cover.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a cylinder cover with a cylinder pressure sensor sleeve and an installation method of the cylinder cover with the cylinder pressure sensor sleeve.
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 cross-sectional view of a lower sleeve of a cylinder head with a cylinder pressure sensor sleeve according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of an upper plug according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a lower plug according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of the cylinder head mold after the upper mold is closed to the lower mold;
fig. 5 is a schematic partial cross-sectional view of a cylinder head with a cylinder pressure sensor sleeve according to an embodiment of the present invention after the cylinder head is mounted.
In the figure: 1. a lower sleeve; 11. pressure tapping; 12. a sensor mounting hole; 121. a second internal thread; 13. an upper sleeve mounting hole; 131. a first internal thread; 14. the outer circular surface of the lower sleeve; 15. the lower surface of the lower sleeve; 16. the upper surface of the lower sleeve; 2. screwing up; 21. a first hexagonal socket; 22. the vent hole is plugged by an upper plug; 23. a first external thread; 24. the upper surface of the upper plug; 3. a lower plug; 31. a second hexagonal socket; 32. a second external thread; 33. a rod portion; 34. the lower plug is vertical exhaust hole; 35. the lower plug horizontal vent hole; 36. the lower surface of the lower plug; 4. molding a cylinder cover die; 5. an oil chamber sand core; 6. a water jacket sand core; 7. the cylinder cover die is lower; 8. an upper sleeve; 9. a cylinder head cover; 10. cylinder head water and oil duct partition and combustion chamber partition.
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 embodiment of the invention provides a cylinder cover with a cylinder pressure sensor sleeve and an installation method of the cylinder cover with the cylinder pressure sensor sleeve, which can solve the problems that data acquired by the cylinder pressure sensor is deviated from actual data due to the influence of temperature, the workload is large and the difficulty is large in the related technology.
Referring to fig. 1 and 5, a cylinder head with a cylinder pressure sensor sleeve according to an embodiment of the present invention includes: a cylinder head body for sealing a cylinder of an engine; a lower sleeve 1, the lower sleeve 1 being provided integrally with the cylinder head body; an upper sleeve 8 fixed to the upper portion of the lower sleeve 1; the cylinder pressure sensor is mounted at the lower part of the lower sleeve 1 and used for measuring the pressure in the engine cylinder.
Referring to fig. 5, the cylinder head body may be molded by casting, and has a cylinder head water passage partition and a combustion chamber partition 10.
Referring to fig. 1, in some embodiments, the lower sleeve 1 may be a long cylinder, and the lower sleeve 1 may be formed by machining, and then the lower sleeve 1 is placed between an upper cylinder head mold 4 and a lower cylinder head mold 7 when the cylinder head body is cast, and after the cylinder head body is cast, the lower sleeve 1 is integrated with the cylinder head water and oil passage partition and a combustion chamber partition 10, or the lower sleeve 1 may not be formed by machining, but the lower sleeve 1 and the cylinder head body are cast together when the cylinder head body is cast; or the lower sleeve 1 and the cylinder head body are separately molded firstly and then are combined into a whole in a welding or soldering mode.
Referring to fig. 1, in some alternative embodiments, the lower sleeve 1 has a lower sleeve upper surface 16 at the top and a lower sleeve lower surface 15 at the bottom, and the lower portion thereof may be tapered as needed to better fit the cylinder head body, the upper portion of the lower sleeve 1 may be provided with an upper sleeve mounting hole 13 for mounting the upper sleeve 8, the upper sleeve mounting hole 13 upwardly penetrates through the lower sleeve upper surface 16, and the inner wall surface of the upper sleeve mounting hole 13 may be provided with a first internal thread 131; the lower portion of the lower sleeve 1 may be provided with a sensor mounting hole 12, the sensor mounting hole 12 being in communication with the upper sleeve mounting hole 13, and the inner wall surface of the sensor mounting hole 12 is provided with a second internal thread 121, a pressure tapping hole 11 communicated with the sensor mounting hole 12 is arranged below the sensor mounting hole 12, the pressure measuring hole 11 is used for the cylinder pressure sensor to obtain the pressure in the cylinder and penetrates through the lower surface 15 of the lower sleeve downwards, the upper sleeve mounting hole 13, the sensor mounting hole 12 and the pressure tapping hole 11 may all be located on the axis of the lower sleeve 1, the lower sleeve outer circular surface 14 of the lower sleeve 1 surface can be provided with grid stripes, the grid stripes are used for exhausting the lower sleeve 1 when the lower sleeve 1 is cast with the cylinder cover body, the grid stripes can improve the bonding strength between the lower sleeve 1 and the cylinder head water and oil passage partition plate and the combustion chamber partition plate 10; in the pouring process, the upper surface 16 of the lower sleeve is attached to the upper mold 4 of the cylinder cover mold, the upper surface 16 of the lower sleeve is processed into a surface matched with the upper mold 4 of the cylinder cover mold, so that the lower sleeve is attached tightly, the lower surface 15 of the lower sleeve is attached to the lower mold 7 of the cylinder cover mold, and the lower surface 15 of the lower sleeve is processed into a surface matched with the lower mold 7 of the cylinder cover mold, so that the lower sleeve is attached tightly.
Referring to fig. 5, in some alternative embodiments, the outer surface of the lower portion of the upper sleeve 8 may be provided with external threads, and the upper sleeve 8 may be mounted downward through the cylinder head cover 9 into the upper sleeve mounting hole 13, the external threads of the surface of the upper sleeve 8 cooperating with the first internal threads 131 to mount the upper sleeve 8 to the lower sleeve 1; the cylinder pressure sensor is mounted in the sensor mounting hole 12 by being screw-fitted with the second internal threads 121.
Referring to fig. 4 and 5, an embodiment of the present invention further provides a method for mounting a cylinder head with a cylinder pressure sensor sleeve as described above, which includes the following steps:
step 1: a lower plug 3 is arranged in a sensor mounting hole 12 at the lower part of the lower sleeve 1, and an upper plug 2 is arranged in an upper sleeve mounting hole 13 at the upper part of the lower sleeve 1.
Referring to fig. 1, in some embodiments, before step 1, the lower sleeve 1 may be machined, wherein the lower sleeve 1 may be a long cylinder, the top of the lower sleeve 1 has a lower sleeve upper surface 16, the bottom of the lower sleeve 1 has a lower sleeve lower surface 15, and the lower portion of the lower sleeve may be conical, the upper portion of the lower sleeve 1 may be provided with an upper sleeve mounting hole 13, the upper sleeve mounting hole 13 penetrates the lower sleeve upper surface 16 upwards, and the inner wall surface of the upper sleeve mounting hole 13 may be provided with a first internal thread 131; the lower part of lower sleeve 1 can be equipped with sensor mounting hole 12, sensor mounting hole 12 with upper sleeve mounting hole 13 intercommunication, just the internal wall face of sensor mounting hole 12 is equipped with second internal thread 121, the below of sensor mounting hole 12 is equipped with the pressure hole 11 rather than the intercommunication, pressure hole 11 runs through downwards lower sleeve lower surface 15, the lower sleeve excircle face 14 on lower sleeve 1 surface can set up the net stripe, lower sleeve lower surface 15 can be made the surface of laminating mutually with cylinder head mould lower mould 7, lower sleeve upper surface 16 can be made the surface of laminating mutually with cylinder head mould upper mould 4.
Referring to fig. 5, in some alternative embodiments, before step 1, the upper sleeve 8 may be machined, and the outer surface of the lower portion of the upper sleeve 8 may be provided with external threads.
Referring to fig. 2, in some embodiments, before step 1, the upper plug 2 may be machined, wherein an upper portion of the upper plug 2 may be provided with a first hexagon socket 21 or a straight flat groove penetrating through an upper plug surface 24 for mounting the upper plug 2, an upper plug exhaust hole 22 may be drilled downward from a center of the first hexagon socket 21 or the straight flat groove, the upper plug exhaust hole 22 penetrates downward through a lower surface of the upper plug 2 to facilitate exhaust during casting, an outer surface of the upper plug 2 is provided with a first external thread 23, and the upper plug surface 24 may be a surface that is configured to be in contact with the cylinder head mold upper form 4.
Referring to fig. 3, in some alternative embodiments, before step 1, the lower plug 3 may be machined, wherein the lower plug 3 may have an operating portion at an upper end, a second hexagonal socket 31 or a straight flat groove may be formed in the operating portion to penetrate through an upper surface of the lower plug 3 for mounting the lower plug 3, an outer surface of the operating portion is provided with a second external thread 32, and a rod portion 33 connected to a lower end of the operating portion, a diameter of the rod portion 33 is smaller than that of the operating portion, the rod portion 33 may have a smooth outer surface, a lower plug horizontal exhaust hole 35 may be drilled from the outer surface of the rod portion 33 to a center of the rod portion 33, and a plurality of circles of the lower plug horizontal exhaust holes 35 may be drilled horizontally on the outer surface of the rod portion 33, the plurality of circles of the lower plug horizontal exhaust holes 35 are spaced up and down, in this embodiment, two circles of the lower plug horizontal exhaust holes 35 are preferably drilled; a lower plug vertical exhaust hole 34 can be drilled downwards from the center of the second hexagon socket 31 or the straight flat groove, the lower plug vertical exhaust hole 34 extends downwards to the cross section of the lowest circle of the lower plug horizontal exhaust hole 35 of the rod part 33, so that the lower plug vertical exhaust hole 34 is communicated with each circle of the lower plug horizontal exhaust hole 35, the lower plug vertical exhaust hole 34 and the lower plug horizontal exhaust holes 35 jointly form a complete exhaust hole system of the lower plug 3, the exhaust of gas in the casting process is further improved, the bottom surface of the rod part 33 is provided with a lower plug lower surface 36, and the lower plug lower surface 36 can be made into a surface which is attached to the lower mold 7 of the cylinder cover mold.
In some embodiments, in step 1, the upper plug 2 is installed in the upper sleeve installation hole 13, the first external thread 23 is matched with the first internal thread 131, the lower plug 3 is installed in the sensor installation hole 12, the second external thread 32 is matched with the second internal thread 121, and after the installation is completed, a gap between the outer surface of the rod portion 33 and the inner wall surface of the pressure taking hole 11 is kept between 0.15 mm and 0.30mm, so that the exhaust in the casting process is facilitated.
In some optional embodiments, in step 1, the upper plug 2 is used for sealing the upper end of the lower sleeve 1, and the lower plug 3 is used for sealing the lower end of the lower sleeve 1.
Step 2: and an air passage sand core, an oil chamber sand core 5 and a water jacket sand core 6 are arranged on the lower die 7 of the cylinder cover die, and the oil chamber sand core (5) and the water jacket sand core (6) are respectively provided with an assembling hole.
In some embodiments, the cylinder head mold upper mold 4 and the cylinder head mold lower mold 7 are preheated before the air passage core, the oil chamber core 5, and the water jacket core 6 are placed on the cylinder head mold lower mold 7 before step 2.
In some alternative embodiments, before step 2, before the oil chamber sand core 5 and the water jacket sand core 6 are placed on the cylinder head mold lower 7, sand on the oil chamber sand core 5 and the water jacket sand core 6 may be manually removed by using a sand core-dedicated file to form the fitting holes, or the fitting holes may be formed by an machining method.
In some embodiments, in step 2, the air passage sand core is used for forming the air inlet passage and the air outlet passage of the cylinder head body.
And step 3: and (3) penetrating the combination body of the lower sleeve 1, the upper plug 2 and the lower plug 3 into the corresponding assembly holes of the oil chamber sand core 5 and the water jacket sand core 6.
In some optional embodiments, in step 3, before the assembly of the lower sleeve 1, the upper plug 2 and the lower plug 3 is inserted into the assembly hole, the assembly of the lower sleeve 1, the upper plug 2 and the lower plug 3 may be placed in a heating furnace and heated to 250-400 ℃.
In some embodiments, after step 3, after the assembly of the lower sleeve 1, the upper plug 2 and the lower plug 3 is inserted into the assembly hole corresponding to the oil chamber sand core 5 and the water jacket sand core 6, if the gap between the assembly hole and the lower sleeve outer circular surface 14 is large, asbestos may be filled in the gap, so as to ensure that the lower sleeve 1 is fixed in the assembly hole, and the lower sleeve lower surface 15 and the lower plug lower surface 36 may both be attached to the cylinder head mold lower mold 7, so that the bottom end of the lower sleeve 1 has good sealing performance.
And 4, step 4: and closing the cylinder head die, and pouring and forming a cylinder head body to enable the lower sleeve 1 and the cylinder head body to be integrated.
Referring to fig. 4, in some embodiments, in step 4, the cylinder head mold clamping mold body comprises: and (3) closing the cylinder cover die upper die 4, the cylinder cover die left die, the cylinder cover die right die, the cylinder cover die front die and the cylinder cover die rear die to the cylinder cover die lower die 7.
Referring to fig. 4, in some alternative embodiments, in step 4, after the cylinder head mold upper mold 4 is clamped to the cylinder head mold lower mold 7, both the lower sleeve upper surface 16 and the upper plug upper surface 24 may be attached to the cylinder head mold upper mold 4, so that the top end of the lower sleeve 1 has better sealing performance.
In some embodiments, in step 4, when the cylinder head body is cast, the grid stripes provided on the outer circular surface 14 of the lower sleeve can facilitate the exhaust in the casting process of the cylinder head body, and enhance the bonding strength between the lower sleeve 1 and the cylinder head body.
In some optional embodiments, after the step 4, after the cylinder head body is cast, the oil chamber sand core 5 and the water jacket sand core 6 may be changed into sand grains by shaking or burning, so as to remove the oil chamber sand core 5 and the water jacket sand core 6, the lower sleeve 1 is formed integrally with the formed cylinder head body, and the lower sleeve 1 is fixed on the cylinder head water gallery partition and the combustion chamber partition 10.
And 5: and taking out the upper plug 2 and the lower plug 3, installing an upper sleeve 8 into the upper sleeve installation hole 13, and installing a cylinder pressure sensor into the sensor installation hole 12.
In some embodiments, in step 5, when the upper plug 2 and the lower plug 3 are removed, the upper plug 2 is removed first, and then the lower plug 3 is removed.
Referring to fig. 5, in some alternative embodiments, in step 5, prior to installing the upper sleeve 8 into the upper sleeve mounting hole 13, the qualified cylinder head cover 9 can be formed through a series of steps of injection molding, welding and assembling, then the mounting hole is drilled on the cylinder head cover 9 corresponding to the position where the upper sleeve 8 needs to be mounted, then the cylinder head cover 9 is mounted to the cylinder head body, and then the upper sleeve 8 is fixed into the upper sleeve mounting hole 13 through the mounting hole of the cylinder head cover 9, the external thread on the outer surface of the upper sleeve 8 is matched with the first internal thread 131, a red copper gasket can be additionally arranged between the upper sleeve 8 and the cylinder head cover 9 for sealing, and finally the cylinder pressure sensor is installed in the sensor installation hole 12 and is fixed through the second internal thread 121.
The embodiment of the invention provides a cylinder cover with a cylinder pressure sensor sleeve and a mounting method of the cylinder cover with the cylinder pressure sensor sleeve, which have the following principles:
because the lower sleeve 1 and the cylinder head body are integrally arranged, when the cylinder head body is cast, the lower sleeve 1 is directly precast on the cylinder head body of an engine, so that the lower sleeve 1 and the cylinder head body are integrated, the cylinder pressure sensor is fixed in the sensor mounting hole 12 of the lower sleeve 1, the cylinder pressure sensor does not need to be mounted in a spark plug hole, and the cylinder pressure sensor is not easily influenced by the temperature in the spark plug, therefore, more accurate pressure data can be acquired, the structure of the spark plug does not need to be modified, only when the cylinder head body is cast, the lower sleeve 1 is placed at a proper position of a mold for casting the cylinder head body, and after the cylinder head body is cast, the lower sleeve 1 and the cylinder head body are also integrally formed, the process is simple and quick, the workload and the working difficulty are small, and the sealing performance and the structural safety between the lower sleeve 1 and the cylinder cover body are reliable.
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 (10)
1. A cylinder head with a cylinder pressure sensor sleeve, comprising:
a cylinder head body for sealing a cylinder of an engine;
the lower sleeve (1) is integrally arranged with the cylinder cover body, an upper sleeve mounting hole (13) is formed in the upper portion of the lower sleeve (1), and a sensor mounting hole (12) is formed in the lower portion of the lower sleeve (1);
an upper sleeve (8) mounted to the upper sleeve mounting hole (13);
and a cylinder pressure sensor fixed to the sensor mounting hole (12).
2. The cylinder head with a cylinder pressure sensor sleeve as set forth in claim 1, wherein: the cylinder cover body is provided with a cylinder cover water and oil passage partition plate and a combustion chamber partition plate (10), and the lower sleeve (1) is integrally arranged on the cylinder cover water and oil passage partition plate and the combustion chamber partition plate (10).
3. The cylinder head with a cylinder pressure sensor sleeve as set forth in claim 1, wherein: and grid stripes are arranged on the outer circular surface of the lower sleeve (1) and are used for exhausting in the process that the lower sleeve (1) is integrally arranged on the cylinder cover body.
4. The cylinder head with a cylinder pressure sensor sleeve as set forth in claim 1, wherein: and a pressure taking hole (11) is arranged below the sensor mounting hole (12).
5. A method of mounting a cylinder head with a cylinder pressure sensor sleeve according to claim 1, comprising the steps of:
a lower plug (3) is arranged in a sensor mounting hole (12) at the lower part of the lower sleeve (1), and an upper plug (2) is arranged in an upper sleeve mounting hole (13) at the upper part of the lower sleeve (1);
an air passage sand core, an oil chamber sand core (5) and a water jacket sand core (6) are arranged on a lower die (7) of the cylinder cover die, and assembly holes are formed in the oil chamber sand core (5) and the water jacket sand core (6);
the lower sleeve (1), the upper plug (2) and the lower plug (3) are assembled in assembling holes corresponding to the oil chamber sand core (5) and the water jacket sand core (6);
closing the cylinder cover die, and casting a cylinder cover body to form the lower sleeve (1) and the cylinder cover body into a whole;
and taking out the upper plug (2) and the lower plug (3), installing an upper sleeve (8) into the upper sleeve installation hole (13), and installing a cylinder pressure sensor into the sensor installation hole (12).
6. The method of mounting a cylinder head with a cylinder pressure sensor sleeve according to claim 5, wherein:
before the assembly of the lower sleeve (1), the upper plug (2) and the lower plug (3) is arranged in the corresponding assembly holes of the oil chamber sand core (5) and the water jacket sand core (6) in a penetrating manner, the assembly is placed in a heating furnace and heated to 250-400 ℃.
7. The method of mounting a cylinder head with a cylinder pressure sensor sleeve according to claim 5, wherein:
before the oil chamber sand core (5) and the water jacket sand core (6) are placed on the lower die (7) of the cylinder cover die, sand on the oil chamber sand core (5) and the water jacket sand core (6) is manually removed by adopting a special sand core file to form the assembly holes, or the assembly holes are formed by machining.
8. The method of mounting a cylinder head with a cylinder pressure sensor sleeve according to claim 5, wherein:
after the assembly of the lower sleeve (1), the upper plug (2) and the lower plug (3) is arranged in the assembly holes corresponding to the oil chamber sand core (5) and the water jacket sand core (6) in a penetrating manner, asbestos is filled in the gap between the lower sleeve (1) and the assembly holes.
9. The method of mounting a cylinder head with a cylinder pressure sensor sleeve according to claim 5, wherein:
after the pouring of the cylinder cover body is completed, the upper plug (2) is taken out firstly, and then the lower plug (3) is taken out.
10. The method of mounting a cylinder head with a cylinder pressure sensor sleeve according to claim 5, wherein:
before the upper sleeve (8) is mounted, the assembled cylinder head cover (9) is mounted to the cylinder head body, and then the upper sleeve (8) is fixed into the upper sleeve mounting hole (13) through the cylinder head cover (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010408100.3A CN111664020B (en) | 2020-05-14 | 2020-05-14 | Cylinder cover with cylinder pressure sensor sleeve and mounting method thereof |
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| CN202010408100.3A CN111664020B (en) | 2020-05-14 | 2020-05-14 | Cylinder cover with cylinder pressure sensor sleeve and mounting method thereof |
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| CN111664020A true CN111664020A (en) | 2020-09-15 |
| CN111664020B CN111664020B (en) | 2021-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151193A (en) * | 2021-12-16 | 2022-03-08 | 中国船舶重工集团公司第七一一研究所 | Probe installation assembly, system and endoscopic visualization system of engine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03153315A (en) * | 1989-11-10 | 1991-07-01 | Ushio Yuutec:Kk | Taking-out device for molded product |
| CN101158611A (en) * | 2007-11-15 | 2008-04-09 | 重庆长安汽车股份有限公司 | Engines cylinder pressure sensor installation sealing structure |
| CN103487197A (en) * | 2012-06-08 | 2014-01-01 | 罗伯特·博世有限公司 | Method for manufacturing sensor carrier, sensor carrier and sensor |
| CN103736935A (en) * | 2013-12-24 | 2014-04-23 | 上海亚德林有色金属有限公司 | Mold for manufacturing automobile engine support body |
| EP2812664B1 (en) * | 2012-02-10 | 2015-10-21 | Robert Bosch GmbH | Pressure measuring device for a sensor measuring pressure in a combustion chamber |
| CN205225491U (en) * | 2015-12-25 | 2016-05-11 | 东风商用车有限公司 | Engine burning is jar pressure sensor installation seal structure for closed loop |
| CN105903899A (en) * | 2016-06-20 | 2016-08-31 | 莱芜钢铁集团有限公司 | Casting method for steelmaking slag pot and sand box mold assembly |
| CN206286537U (en) * | 2016-11-26 | 2017-06-30 | 中信戴卡股份有限公司 | A kind of wheel die bed die |
| CN109790801A (en) * | 2016-09-19 | 2019-05-21 | 康明斯有限公司 | The cast type EGR cross pipe with integral venturi for flow measurement |
| CN210412414U (en) * | 2019-04-17 | 2020-04-28 | 天津德盛镁汽车部件有限公司 | Oil pan casting system structure |
-
2020
- 2020-05-14 CN CN202010408100.3A patent/CN111664020B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03153315A (en) * | 1989-11-10 | 1991-07-01 | Ushio Yuutec:Kk | Taking-out device for molded product |
| CN101158611A (en) * | 2007-11-15 | 2008-04-09 | 重庆长安汽车股份有限公司 | Engines cylinder pressure sensor installation sealing structure |
| EP2812664B1 (en) * | 2012-02-10 | 2015-10-21 | Robert Bosch GmbH | Pressure measuring device for a sensor measuring pressure in a combustion chamber |
| CN103487197A (en) * | 2012-06-08 | 2014-01-01 | 罗伯特·博世有限公司 | Method for manufacturing sensor carrier, sensor carrier and sensor |
| CN103736935A (en) * | 2013-12-24 | 2014-04-23 | 上海亚德林有色金属有限公司 | Mold for manufacturing automobile engine support body |
| CN205225491U (en) * | 2015-12-25 | 2016-05-11 | 东风商用车有限公司 | Engine burning is jar pressure sensor installation seal structure for closed loop |
| CN105903899A (en) * | 2016-06-20 | 2016-08-31 | 莱芜钢铁集团有限公司 | Casting method for steelmaking slag pot and sand box mold assembly |
| CN109790801A (en) * | 2016-09-19 | 2019-05-21 | 康明斯有限公司 | The cast type EGR cross pipe with integral venturi for flow measurement |
| CN206286537U (en) * | 2016-11-26 | 2017-06-30 | 中信戴卡股份有限公司 | A kind of wheel die bed die |
| CN210412414U (en) * | 2019-04-17 | 2020-04-28 | 天津德盛镁汽车部件有限公司 | Oil pan casting system structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151193A (en) * | 2021-12-16 | 2022-03-08 | 中国船舶重工集团公司第七一一研究所 | Probe installation assembly, system and endoscopic visualization system of engine |
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| CN111664020B (en) | 2021-08-31 |
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