CN103925102B - Composite cylinder cover - Google Patents
Composite cylinder cover Download PDFInfo
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- CN103925102B CN103925102B CN201410190198.4A CN201410190198A CN103925102B CN 103925102 B CN103925102 B CN 103925102B CN 201410190198 A CN201410190198 A CN 201410190198A CN 103925102 B CN103925102 B CN 103925102B
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- cylinder
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- lid
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Abstract
The invention discloses a composite cylinder cover and an engine body of an internal combustion engine. The composite cylinder cover is provided with a gas inlet channel, an exhaust channel and an oil injector installation hole, the composite cylinder cover is further integrated with a cam shaft hole, a tappet hole and a cylinder hole, the cam shaft hole and the tappet hole are formed in the same side of the composite cylinder cover, the cylinder hole is formed in the middle of the composite cylinder cover, and the composite cylinder cover can be directly installed on a crankcase so that a piston can directly extend into the cylinder hole and moves in a reciprocating mode. The engine body of the internal combustion engine comprises the composite cylinder cover and the crankcase. By means of the composite cylinder cover and the engine body of the internal combustion engine, the faults of cylinder gasket pushing and cylinder gasket ablation of a traditional cylinder cover structure can be fundamentally avoided, meanwhile, the complex structure of a cooling water cavity in the cylinder cover is changed, the structure is simplified, and manufacturing requirements are low.
Description
Technical field
The present invention relates to field of internal combustion engine, particularly a kind of Combined cylinder lid.
Background technique
Cylinder head is a key components and parts of conventional internal combustion, and it forms the basic framework of internal-combustion engine together with cylinder block, cylinder liner.Particularly, cylinder head is installed on cylinder block by cylinder head bolt, cylinder liner is installed on the cylinder-bore central (cylinder-bore of the internal-combustion engine had is for directly installing piston) of cylinder block, cylinder head and piston, cylinder liner form the firing chamber of internal-combustion engine, piston is reciprocating in cylinder liner, installs distribution device and cover cap above cylinder head.Traditional cylinder head is generally a housing structure, there is in casing the water jacket cavity of air flue, valve mounting struction, cylinder head bolt hole pillar, oilhole pillar, pore pillar and these structure peripheries, during internal combustion engine, water jacket cavity is full of cooling liquid, carries out necessary cooling to valve and air valve seat ring, cylinder head base plate.Meanwhile, around cylinder liner or cylinder-bore, also have cooling liquid carry out necessary cooling to piston, piston ring, cooling liquid, lubricant oil and crankcase waste gas circulate between cylinder head, cylinder block.So, head gasket sealed high pressure high-temperature fuel gas, lubricant oil, cooling liquid and crankcase waste gas is adopted between cylinder head and cylinder block, cylinder head and cylinder block fastening by cylinder head bolt, cylinder head bolt is screwed into cylinder block from top surface of cylinder cover through cylinder head and head gasket.
Due to the gas high-temperature high-voltage alternating of firing chamber, very high to the seal request between cylinder head and cylinder block, traditional cylinder head is in order to ensure sealing, generally all around cylinder holes, arrange many cylinder head bolt holes, cylinder liner should protrude cylinder block end face after installing, and this bulge quantity must strictly control, the necessary strict thickness of control cylinder pad and the screw-down torque of cylinder head bolt in addition, allows head gasket be subject to enough pressure to ensure that sealing is reliable.
But in technique scheme, in order to ensure sealing, arranging many cylinder head bolt holes around cylinder holes, cylinder head internal structure must be caused complicated, casting difficulty, manufacture cost is high, and is affected to the cooling effect of ridge area.Further, the screw-down torque that the thickness of head gasket, cylinder liner protrude the height of cylinder block end face and cylinder head bolt is very high to manufacturing technology, process specifications, is difficult to avoid to rush that cylinder pad causes leaking gas, leaks, oil leakage fault.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of Combined cylinder lid, traditional combustion engine can be eliminated and rush cylinder pad and cylinder pad ablation fault; By reducing the quantity of cylinder head bolt, making the manufacture summary of cylinder head, reducing manufacture cost; The cooling of cylinder head ridge area can also be improved, improve the reliability of cylinder head.
For achieving the above object, the invention provides a kind of Combined cylinder lid, this Combined cylinder lid has intake duct, air outlet flue, mounting hole of oil sprayer, Combined cylinder lid is also integrated with camshaft hole, tappet hole and cylinder-bore, camshaft hole and tappet hole are located at the same side of Combined cylinder lid, cylinder-bore is located at the neutral position of Combined cylinder lid, and Combined cylinder lid can be directly installed on crankcase and make piston can directly stretch into reciprocating action in cylinder-bore.
Preferably, be provided with cylinder head bolt near the Combined cylinder cap position of cylinder-bore to be used for being fastenedly connected with crankcase.
Preferably, the bottom periphery of Combined cylinder lid is provided with connecting bolt and is used for being fastenedly connected with the periphery, upper end of crankcase.
Preferably, the upper-end surface of the bottom end float chamber of Combined cylinder lid is provided with the groove for filling sealed glue.
Preferably, the position, top of Combined cylinder lid is provided with cylinder head jacket.
Preferably, cylinder holes water jacket is provided with around cylinder-bore.
Present invention also offers a kind of body of internal-combustion engine, it comprises above-mentioned Combined cylinder lid and crankcase, Combined cylinder lid is directly installed on the upper end of crankcase, upper end portion and the cylinder-bore corresponding position of crankcase are provided with cylinder holes extension part, and the cylinder-bore that Combined cylinder covers and cylinder holes extension part form machine body cylinder hole.
Preferably, machine body cylinder is provided with cylinder liner in hole, the cylinder-bore that upper end part and the Combined cylinder of cylinder liner cover coordinates, the end portion of cylinder liner coordinates with cylinder holes extension part, and the bottom outer wall of cylinder liner has interior step, the inwall of cylinder holes extension part has inwardly protruded support shoulders, and support shoulders is connected on interior step cylinder liner axially locating.
Present invention also offers a kind of body of internal-combustion engine, it comprises above-mentioned Combined cylinder lid and crankcase, and the both sides, bottom of Combined cylinder lid have adpting flange respectively, and the position, both sides, upper end of crankcase and adpting flange are fixed by connecting bolt; Crankcase inside has cylinder head bolt lug and bolt of bearing cap lug, and cylinder head bolt lug is connected by lacing wire with bolt of bearing cap lug.
Preferably, the joint of Combined cylinder lid and crankcase is provided with locating stud.
Compared with prior art, the present invention has following beneficial effect: the part body in traditional cylinder block is integrated in cylinder head by this Combined cylinder lid, can fundamentally stop " rushing cylinder pad " and the cylinder pad ablation fault of traditional air cylinder head structure; This Combined cylinder lid is by being fastenedly connected at the connecting bolt of bottom periphery and the periphery, upper end of crankcase, the quantity of the cylinder head bolt of Combined cylinder lid inside can be reduced, change the labyrinth of the cooling water chamber of cylinder head inside, ensure that the water around ridge area and around cylinder holes flows out more smooth and easy, the cooling effect of cylinder head can be improved, improve the reliability of internal-combustion engine; This Combined cylinder lid can be directly installed on crankcase, and its cylinder liner construction used simplifies, and manufacture, assembly technical requirement reduce, and effectively reduce the manufacture cost of internal-combustion engine.
Accompanying drawing explanation
Fig. 1 is the structural representation that Combined cylinder lid according to the present invention is arranged on crankcase;
Fig. 2 is that B in Fig. 1 is to schematic diagram;
Fig. 3 is the sectional view along A-A direction in Fig. 1;
Fig. 4 is the sectional view along C-C direction in Fig. 3.
Main Reference Numerals illustrates:
1-Combined cylinder lid, 2-intake duct, 3-cylinder liner, 4-connecting bolt, 5-groove, 6-main oil gallery, 7-cylinder head bolt lug, 8-lacing wire, 9-bolt of bearing cap lug, 10-crankcase, 11-bearing cap, 12-main bearing hole, 13-bolt of bearing cap, 14-camshaft hole, 15-tappet hole, 16-air outlet flue, 17-mounting hole of oil sprayer, 18-cylinder head bolt, 19-cylinder-bore, 20-cylinder holes extension part, 21-supports shoulder, 22-locating stud, 23-cylinder head jacket, 24-clearance for expansion, 25-cylinder holes water jacket.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
Embodiment 1
As shown in Figure 1, can be directly installed on crankcase 10 according to the Combined cylinder lid 1 of the specific embodiment of the invention, form the body of internal-combustion engine, piston in crankcase 10 can directly stretch into reciprocating action in cylinder-bore 19, this Combined cylinder lid 1 itself is integrated with all intake ducts of traditional cylinder head 2, air outlet flue 16, mounting hole of oil sprayer 17, cylinder head jacket 23 and valve mounting struction (not shown), valve mounting struction can be existing structure, is fixed on the top of this Combined cylinder lid 1.Also be integrated with cylinder-bore 19, cylinder holes water jacket 25, camshaft hole 14 and tappet hole 15 (see Fig. 4) in addition.In the present embodiment, intake duct 2 and air outlet flue 16 are located at the both sides of cylinder cap upper end, and mounting hole of oil sprayer 17 is located at the neutral position of cylinder cap upper end and aims at cylinder-bore 19, and camshaft hole 14 and tappet hole 15 are located at the same side of cylinder cap, and camshaft hole 14 is communicated with crankcase 10.Preferably, the Combined cylinder lid 1 that the present embodiment provides can also comprise cylinder liner 3, cylinder liner 3 is arranged on (with reference to Fig. 1) in cylinder-bore 19, and Fig. 1 illustrates that the one of cylinder liner 3 and crankcase 10 is with the use of mode, also can select other modes existing.
In such scheme, cylinder-bore 19, camshaft hole 14 and tappet hole 15 are directly processed and obtain in cylinder head, cylinder head jacket 23 is located at the position, top (see Fig. 3) of Combined cylinder lid 1, cylinder holes water jacket 25 is located at cylinder-bore 19 around, and can be interconnected (see Fig. 4).Cylinder head bolt 18 is located at the Combined cylinder cap position near cylinder-bore 19, particularly, be provided with two exhaust cylinder bolt holes (mark 18 see Fig. 4) in the both sides near cylinder-bore 19, cylinder head bolt 18 is tightened (see Fig. 1) through the cylinder head bolt lug 7 of two exhaust cylinder bolt holes and crankcase 10.Part body in traditional cylinder block is integrated in cylinder head by this Combined cylinder lid 1, can fundamentally stop " rushing cylinder pad " and the cylinder pad ablation fault of traditional air cylinder head structure.In addition, this Combined cylinder lid 1 is fastenedly connected with the periphery, upper end of crankcase 10 by the connecting bolt 4 at bottom periphery, the quantity of cylinder head bolt 18 can be reduced, change the labyrinth of the cooling water chamber of cylinder head inside, ensure that the water around ridge area and around cylinder holes flows out more smooth and easy, the cooling effect of cylinder head can be improved, improve the reliability of internal-combustion engine.Meanwhile, the manufacture summary of cylinder head, cylinder liner construction simplifies, and manufacture, assembly technical requirement reduce, and effectively reduce the manufacture cost of internal-combustion engine.
Embodiment 2
As shown in Figure 1, according to the body of the specific embodiment of the invention, it comprises the Combined cylinder lid 1 and crankcase 10 that provide in embodiment 1, Combined cylinder lid 1 is arranged on the upper end of crankcase 10, cylinder-bore 19 corresponding position on the upper end portion of crankcase 10 and Combined cylinder lid 1 is provided with cylinder holes extension part 20, cylinder-bore 19 on Combined cylinder lid 1 forms machine body cylinder hole (unmarked in figure) with cylinder holes extension part 20, the groove 5 for filling sealed glue is provided with in the upper-end surface of crankcase 10, groove 5 also can be located at the bottom end of Combined cylinder lid 1, the effect reaching sealing is fastenedly connected by glue filling sealed in groove 5 and Combined cylinder lid 1 and crankcase 10.As a kind of preferred embodiment, cylinder liner 3 is provided with in machine body cylinder hole, cylinder-bore 19 interference fit on the upper end part of cylinder liner 3 and Combined cylinder lid 1, the end portion of cylinder liner 3 and cylinder holes extension part 20 Spielpassung, the bottom outer wall of cylinder liner 3 has interior step (unmarked in figure), the inwall of cylinder holes extension part 20 has inwardly protruded support shoulders 21, support shoulders 21 is connected to cylinder liner 3 axially locating on interior step, leaves linear expansion gap 24 between the top of cylinder liner 3 and cylinder-bore 19 top of Combined cylinder lid 1.
Combined cylinder lid 1 is fixedly connected with in the following way with crankcase 10, the both sides, bottom of Combined cylinder lid 1 have adpting flange (unmarked in figure) respectively, adpting flange is provided with row's link bolt hole, the position, both sides, upper end of crankcase 10 is corresponding with the link bolt hole on adpting flange is provided with row's bolt hole, it is fastening that the outside of Combined cylinder lid 1 and crankcase 10 arrange connecting bolt 4 by two, fastening by cylinder head bolt 18 and crankcase 10 in the inside of Combined cylinder lid 1, arranging of cylinder head bolt 18 is the same, corresponding, in the inside of crankcase 10, there is cylinder head bolt lug 7, cylinder head bolt 18 is screwed into cylinder head bolt lug 7.In addition, bearing cap 11 is installed by bolt of bearing cap 13 in the bottom of crankcase 10, and bearing cap 11 forms with the bottom of crankcase 10 main bearing hole 12 installing bent axle, is provided with main oil gallery 6 in the side, upper end of crankcase 10.Wherein the inside of crankcase 10 is corresponding with bolt of bearing cap 13 is provided with bolt of bearing cap lug 9, bolt of bearing cap 13 and bolt of bearing cap lug 9 are also set to two rows, and cylinder head bolt lug 7 is connected by lacing wire 8 with bolt of bearing cap lug 9, accurately located by two locating studs 22 when assembling between Combined cylinder lid 1 and crankcase 10.So far, Combined cylinder lid 1 is tightened together with crankcase 10 by two inner exhaust casing bonnet bolts 18 and outside two row's connecting bolts 4, the same with traditional air cylinder structure, by gaseous-pressure and wrist pin thrust, piston just can be reciprocating in cylinder liner 3.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (10)
1. a Combined cylinder lid, this Combined cylinder lid has intake duct, air outlet flue, mounting hole of oil sprayer, it is characterized in that, described Combined cylinder lid is also integrated with camshaft hole, tappet hole and cylinder-bore, described camshaft hole and described tappet hole are located at the same side of described Combined cylinder lid, described cylinder-bore is located at the neutral position of described Combined cylinder lid, and described Combined cylinder lid can be directly installed on crankcase and make piston can directly stretch into reciprocating action in described cylinder-bore.
2. Combined cylinder lid according to claim 1, is characterized in that, is provided with cylinder head bolt is used for being fastenedly connected with described crankcase near the Combined cylinder cap position of described cylinder-bore.
3. Combined cylinder lid according to claim 2, is characterized in that, the bottom periphery of described Combined cylinder lid is provided with connecting bolt and is used for being fastenedly connected with the periphery, upper end of described crankcase.
4. Combined cylinder lid according to claim 3, is characterized in that, the bottom end of described Combined cylinder lid or the upper-end surface of described crankcase are provided with the groove for filling sealed glue.
5. the Combined cylinder lid according to any one of Claims 1-4, is characterized in that, the position, top of described Combined cylinder lid is provided with cylinder head jacket.
6. the Combined cylinder lid according to any one of Claims 1-4, is characterized in that, is provided with cylinder holes water jacket around described cylinder-bore.
7. the body of an internal-combustion engine, it comprises Combined cylinder lid described in any one of claim 1-6 and crankcase, it is characterized in that, described Combined cylinder lid is directly installed on the upper end of described crankcase, upper end portion and the described cylinder-bore corresponding position of described crankcase are provided with cylinder holes extension part, and the cylinder-bore that described Combined cylinder covers and described cylinder holes extension part form machine body cylinder hole.
8. the body of internal-combustion engine according to claim 7, it is characterized in that, cylinder liner is provided with in described machine body cylinder hole, the cylinder-bore that upper end part and the described Combined cylinder of described cylinder liner cover coordinates, the end portion of described cylinder liner coordinates with described cylinder holes extension part, and the bottom outer wall of described cylinder liner has interior step, the inwall of described cylinder holes extension part has inwardly protruded support shoulders, and described support shoulders is connected on described interior step described cylinder liner axially locating.
9. the body of an internal-combustion engine, it comprises Combined cylinder lid described in claim 3 or 4 and crankcase, it is characterized in that, the both sides, bottom of described Combined cylinder lid have adpting flange respectively, and position, both sides, upper end and the described adpting flange of described crankcase are fixed by described connecting bolt; Described crankcase inside has cylinder head bolt lug and bolt of bearing cap lug, and described cylinder head bolt lug is connected by lacing wire with described bolt of bearing cap lug.
10. the body of internal-combustion engine according to claim 9, is characterized in that, the joint of described Combined cylinder lid and described crankcase is provided with locating stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190198.4A CN103925102B (en) | 2014-05-07 | 2014-05-07 | Composite cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190198.4A CN103925102B (en) | 2014-05-07 | 2014-05-07 | Composite cylinder cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103925102A CN103925102A (en) | 2014-07-16 |
| CN103925102B true CN103925102B (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410190198.4A Active CN103925102B (en) | 2014-05-07 | 2014-05-07 | Composite cylinder cover |
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| Country | Link |
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| CN (1) | CN103925102B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101637751B1 (en) * | 2014-12-01 | 2016-07-20 | 현대자동차주식회사 | Aluminum Mono Block Engine using Inter Bore Concentration Flux type Water Jacket |
| CN106438080A (en) * | 2016-10-13 | 2017-02-22 | 广西玉柴机器股份有限公司 | Combined type cylinder block |
| CN106438079A (en) * | 2016-10-13 | 2017-02-22 | 广西玉柴机器股份有限公司 | Engine body of internal combustion engine |
| CN109026424A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | overhead camshaft cylinder head |
| CN110273775A (en) * | 2019-07-02 | 2019-09-24 | 广西玉柴机器股份有限公司 | A kind of body cooling structure |
| CN114810408A (en) * | 2022-03-21 | 2022-07-29 | 潍柴动力股份有限公司 | Engine and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291650A (en) * | 1979-05-23 | 1981-09-29 | Fiat Veicoli Industriali S.P.A. | Cylinder head for compression-ignition internal combustion engine |
| CN1193375A (en) * | 1995-08-16 | 1998-09-16 | 诺思路·格鲁曼公司 | Fiber reinforced ceramic matrix composite cylinder head and cylinder head liner for an imternal combustion engine |
| US5873336A (en) * | 1996-09-11 | 1999-02-23 | Yamaha Hatsudoki Kabushiki Kaisha | Cam drive system for engine |
| CN1644902A (en) * | 2004-11-19 | 2005-07-27 | 天津汽车暖风机有限公司 | Composite cylinder cap with air filter |
| EP1998034A2 (en) * | 2007-05-30 | 2008-12-03 | Mahle International GmbH | Cylinder head cover |
| CN203906107U (en) * | 2014-05-07 | 2014-10-29 | 广西玉柴机器股份有限公司 | Combined type air cylinder cover and internal combustion engine body |
-
2014
- 2014-05-07 CN CN201410190198.4A patent/CN103925102B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291650A (en) * | 1979-05-23 | 1981-09-29 | Fiat Veicoli Industriali S.P.A. | Cylinder head for compression-ignition internal combustion engine |
| CN1193375A (en) * | 1995-08-16 | 1998-09-16 | 诺思路·格鲁曼公司 | Fiber reinforced ceramic matrix composite cylinder head and cylinder head liner for an imternal combustion engine |
| US5873336A (en) * | 1996-09-11 | 1999-02-23 | Yamaha Hatsudoki Kabushiki Kaisha | Cam drive system for engine |
| CN1644902A (en) * | 2004-11-19 | 2005-07-27 | 天津汽车暖风机有限公司 | Composite cylinder cap with air filter |
| EP1998034A2 (en) * | 2007-05-30 | 2008-12-03 | Mahle International GmbH | Cylinder head cover |
| CN203906107U (en) * | 2014-05-07 | 2014-10-29 | 广西玉柴机器股份有限公司 | Combined type air cylinder cover and internal combustion engine body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103925102A (en) | 2014-07-16 |
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