CN103277209B - Single cylinder engine air crossing cylinder cap assembly structure - Google Patents
Single cylinder engine air crossing cylinder cap assembly structure Download PDFInfo
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- CN103277209B CN103277209B CN201310229266.9A CN201310229266A CN103277209B CN 103277209 B CN103277209 B CN 103277209B CN 201310229266 A CN201310229266 A CN 201310229266A CN 103277209 B CN103277209 B CN 103277209B
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- 238000000034 method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 2
- 206010022000 influenza Diseases 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
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Abstract
The invention discloses a kind of single cylinder engine air crossing cylinder cap assembly structure belonging to engine cylinder head system component technology field.The enterprising exhaust path inlet intercross arrangement of cylinder cover bottom surface, 2 intake ducts and 2 air outlet flue intercross arrangement are in cylinder head, in the fractions distribution around center oil sprayer, 2 air outlet flues are compiled in one and flow out from cylinder cap side in cylinder cap inside, 2 intake ducts flow out from same cylinder cap side respectively, inlet and outlet door rocking arm be installed on be fixed on cylinder cap top rocker arm support on.Present invention obviates prior art on cylinder cap, arrange inlet and outlet road arranged side by side, the problem that air outlet flue heat load is concentrated, air inlet flowing exists interference and air-flow undercompounding, employing air crossing is arranged, achieve gas and vapor permeation more even, around air flue, heat load is disperseed, is stablized, effectively can promote the power character of motor, Economy and exhaust index, the present invention is applicable to polytype cylinder of diesel engine cap assembly.
Description
Technical field
The invention belongs to gas engine part field, particularly a kind of single cylinder engine air crossing cylinder cap assembly structure, is that a kind of air flue of single cylinder diesel cylinder cap assembly is arranged and distribution device specifically.
Background technique
Being arranged in internal combustion (IC) Engine Design of Diesel Engine Passage and distribution device is a very crucial part, the diesel engine of every cylinder 4 valve mostly adopts parellel air flue to arrange at present, i.e. air outlet flue, intake duct intercross arrangement, valve gap bridge intercross arrangement, each valve rocker is passed a bridge by valve and is controlled the opening and closing of two intake valves or exhaust valve simultaneously.Traditional air flue arranged side by side arrange have that air-flow mixing is uneven, air-flow is interfered, heat load such as to concentrate at the problem in cylinder cap.Therefore, need compound mode and the position of considering air flue in the design process, and the distribution device designed more efficient, rational air flue arrangement under associated components constraint conditio and match on cylinder cap.
Summary of the invention
The object of the invention is to arrange for traditional air flue arranged side by side have that air-flow mixing is uneven, air-flow is interfered, heat load the problem such as to be concentrated and provides a kind of single cylinder engine air crossing cylinder cap assembly structure in cylinder cap, it is characterized in that, the key of single cylinder engine air crossing cylinder cover structure is air flue layout and the distribution device of single cylinder engine cylinder cap, i.e. enterprising, the venting conduit inlet intercross arrangement of cylinder cover bottom surface, 2 suction tude and 2 outlet pipe intercross arrangement, in cylinder head body, are the fractions distribution around center oil sprayer; Concrete structure is fixed on valve rocker bearing by air inlet and the valve rocker of exhaust and is in tilted layout in intersecting, and the tail end of the valve rocker of air inlet and exhaust is separately fixed on two valve tappets; Upper valve gap bridge is passed a bridge into criss-crossing with lower valve and is arranged, upper valve gap bridge top is connected with the valve rocker front end of air inlet, and lower valve gap bridge top is connected with the valve rocker front end of exhaust, and the air flue of composition cylinder cap is arranged and air distributing device; The air flue of described cylinder cap arranges and air distributing device is fixed on the air flue top surface of cylinder cover of air flue head body.
First, second intake duct described is communicated with intake manifold on air flue cylinder cap two sides.
Be communicated with gas exhaust manifold by the interface on air flue cylinder cap arcuate flanks boss after first, second air outlet flue described merges into an exhaust manifold in air flue head body.
First, second intake duct described synthesizes intake manifold outside air flue head body.
Described air inlet and the valve rocker of exhaust are intersect to be in tilted layout, two rocking arm coaxial rotation.
The front end convex spherical radius of described air inlet and exhaust valve rocking arm is slightly less than valve gap bridge top concave spherical surface radius, rocking arm is made to transmit downforce by the point cantact of two spheres to valve gap bridge, face can be become from point cantact in real process under the impact of deformation with oil film factor to contact, realize stable, that symmetry properties is good power transmission process.
Described intake manifold is supported in air flue cylinder cap arcuate flanks by intake manifold retainer ring.
The invention has the beneficial effects as follows overcome traditional air flue arranged side by side arrange have that air-flow mixing is uneven, air-flow is interfered, heat load is concentrated in cylinder cap defect, the present invention is in tilted layout owing to adopting valve rocker to intersect, upper valve is passed a bridge and is passed a bridge into the scheme of criss-crossing layout with lower valve, therefore have and ensure that rocking arm crosses to the passes a bridge equivalent action center of exerting pressure of valve the centre of form that valve passes a bridge, realize stablizing, the feature of power transmission process that symmetry properties is good.
Accompanying drawing explanation
Fig. 1 is single cylinder engine air crossing cylinder cap assembly structure schematic diagram.
Fig. 2 is that air flue is arranged and distribution device schematic diagram.
Fig. 3 is Fig. 2 plan view.
Fig. 4 is upper valve gap bridge schematic diagram.
Fig. 5 is lower valve gap bridge schematic diagram.
Fig. 6 is that schematic diagram arranged by inlet and outlet manifold.
Number in the figure is: 1-inlet valve rocker, 2-exhaust valve rocker arm, 3-valve rocker bearing, 4-intake valve is passed a bridge, 5-exhaust valve is passed a bridge, the 6-spring seat of honour, 7-valve spring, 8-valve tappet 9-injector pressing device, 10-air flue head body, 11-air flue cylinder cap side, 12-suction tude interface, 13-air flue cylinder cap arcuate flanks, 14-air flue top surface of cylinder cover, 15-intake manifold retainer ring, 16-intake manifold, 17-gas exhaust manifold, 18-fold, 19-valve, 20-first row air flue, 21-second row air flue, 22-first intake duct, 23-second intake duct, 24-exhaust port, 25-convex spherical, 26-concave spherical surface.
Embodiment
The invention provides a kind of single cylinder engine air crossing cylinder cap assembly structure.The key of single cylinder engine air crossing cylinder cover structure is air flue layout and the distribution device of single cylinder engine cylinder cap, is explained below in conjunction with accompanying drawing.
Figure 1 shows that single cylinder engine air crossing cylinder cover structure schematic diagram.In figure, intake valve rocking arm 1 and exhaust valve rocking arm 2 are fixed on valve rocker bearing 3, and be in tilted layout in intersection, valve rocker bearing 3 is fixed on the end face 14 of head body 10.Intake valve rocking arm 1 is individually fixed in two valve tappet 8 heads with the tail end of exhaust valve rocking arm 2; Front end convex spherical 25 and the intake valve of intake valve rocking arm 14 end face concave spherical surfaces 26 of passing a bridge contact, and front end convex spherical and the exhaust valve of exhaust valve rocking arm 25 end face concave spherical surfaces of passing a bridge contact; Intake valve pass a bridge 4 and exhaust valve pass a bridge 5 criss-crossings arrange (as shown in Figure 2,3); Valve 19 is connected with the spring seat of honour 6 by valve stem top groove, and valve stem top is installed in the hole of valve gap bridge end; The spring seat of honour 6 contacts with valve spring 7 under the pressure effect of being transmitted by valve stem groove, is arranged on the end face 14 of head body 10 bottom valve spring 7.The air flue of the above composition cylinder cap assembly is arranged and distribution device.
Described intake valve rocking arm 1 and front end convex spherical 25 radius of exhaust valve rocking arm 2 be slightly less than intake valve passes a bridge 4 and exhaust valve pass a bridge 5 top concave spherical surface 26 radiuses (as Fig. 2,4,5 shown), rocking arm is made to transmit downforce by the point cantact of two spheres to valve gap bridge, face can be become from point cantact in real process under the impact of deformation with oil film factor to contact, realize stable, that symmetry properties is good power transmission process.
Described first intake duct 23 and the second intake duct 22 merge into intake manifold 16 outside air flue head body 10, intake manifold 16 is fixed on cylinder cap side by bolt hole 12, and is supported in air flue cylinder cap arcuate flanks 13 (as a shown in Figure 6) by intake manifold retainer ring 15.
After described first row air flue 21 and second row air flue 20 merge into an exhaust manifold in air flue head body 10, be communicated with gas exhaust manifold 17, gas exhaust manifold 17 is fixed on (as a shown in Figure 6) on the boss of cylinder cap arcuate flanks 13 by bolt hole 24.
Intake manifold is converged outside cylinder, consider to export by intake manifold the installation sealing problem that opposed form causes, adopt elastic material as the material of intake manifold, the tube wall place simultaneously easily producing large deformation in fastening installation process processes many folds 18, is convenient to reduce internal stress.Inlet and outlet manifold outlet direction is all towards the top of cylinder cap real work position, and upper end connects filter cleaner and baffler respectively.Consider the Rigidity produced because intake manifold is longer, cylinder cap cast out a boss and retainer ring is installed for fixing intake manifold above, and then increasing its support stiffness.
Secondly higher intake valve is passed a bridge, for ensureing its stability in vertical direction in reciprocatory movement, prevent lateral vibration, valve is passed a bridge both sides the valve stem mounting hole degree of depth increase, adopt the valve that top length is larger simultaneously, and then make valve gap bridge under the guiding function lengthening valve stem, realize the stable of vertical direction motion by mounting hole.Valve passes a bridge inner side employing stiffening rib to increase its rigidity.
Claims (7)
1. a single cylinder engine air crossing cylinder cap assembly structure, it is characterized in that, the key of single cylinder engine air crossing cylinder cover structure is air flue layout and the distribution device of single cylinder engine cylinder cap, cylinder cover bottom surface is enterprising, venting conduit inlet intercross arrangement, 2 suction tude and 2 outlet pipe intercross arrangement, in cylinder head body, are the fractions distribution around center oil sprayer; The air inlet of single cylinder engine cylinder cap and the valve rocker of exhaust are fixed on valve rocker bearing and are in tilted layout in intersecting, and the tail end of the valve rocker of air inlet and exhaust is separately fixed on two valve tappets; Upper valve gap bridge is passed a bridge into criss-crossing with lower valve and is arranged, upper valve gap bridge top is connected with the valve rocker front end of air inlet, and lower valve gap bridge top is connected with the valve rocker front end of exhaust, and the air flue of composition cylinder cap is arranged and air distributing device; The air flue of described cylinder cap arranges and air distributing device is fixed on the air flue top surface of cylinder cover of air flue head body.
2. a kind of single cylinder engine air crossing cylinder cap assembly structure is characterized in that according to claim 1, and described 2 suction tude are communicated with intake manifold on air flue cylinder cap two sides.
3. a kind of single cylinder engine air crossing cylinder cap assembly structure is characterized in that according to claim 1, is communicated with after described 2 outlet pipes merge into an exhaust manifold in air flue head body by the interface on air flue cylinder cap arcuate flanks boss with gas exhaust manifold.
4. a kind of single cylinder engine air crossing cylinder cap assembly structure is characterized in that according to claim 1, and described 2 suction tude synthesize intake manifold outside air flue head body.
5. a kind of single cylinder engine air crossing cylinder cap assembly structure is characterized in that according to claim 1, and air inlet and the valve rocker of exhaust are intersect to be in tilted layout, two rocking arm coaxial rotation.
6. a kind of single cylinder engine air crossing cylinder cap assembly structure is characterized in that according to claim 1, the front end convex spherical radius of air inlet and exhaust valve rocking arm is slightly less than valve gap bridge top concave spherical surface radius, rocking arm is made to transmit downforce by the point cantact of two spheres to valve gap bridge, face can be become from point cantact in real process under the impact of deformation with oil film factor to contact, realize stable, that symmetry properties is good power transmission process.
7. according to claim 2 or 4, a kind of single cylinder engine air crossing cylinder cap assembly structure is characterized in that, described intake manifold is supported in air flue cylinder cap arcuate flanks by intake manifold retainer ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229266.9A CN103277209B (en) | 2013-06-08 | 2013-06-08 | Single cylinder engine air crossing cylinder cap assembly structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310229266.9A CN103277209B (en) | 2013-06-08 | 2013-06-08 | Single cylinder engine air crossing cylinder cap assembly structure |
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| CN103277209A CN103277209A (en) | 2013-09-04 |
| CN103277209B true CN103277209B (en) | 2015-08-19 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104329134A (en) * | 2014-11-09 | 2015-02-04 | 重庆鼎工机电有限公司 | Gas distribution mechanism of general engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538574A (en) * | 1983-03-25 | 1985-09-03 | Fiat Auto S.P.A. | Supercharged internal combustion engine with a cylinder head having four valves per cylinder |
| US4635592A (en) * | 1984-03-14 | 1987-01-13 | Bombardier-Rotax Gesellschaft M.B.H. | Valve control for an internal combustion engine |
| EP0580039A1 (en) * | 1992-07-24 | 1994-01-26 | Adam Opel Ag | Piston internal combustion engine, in particular diesel engine |
| CN102305147A (en) * | 2011-03-14 | 2012-01-04 | 隆鑫通用动力股份有限公司 | Gasoline engine cylinder head assembly and gasoline engine |
| CN102477878A (en) * | 2010-11-29 | 2012-05-30 | 现代自动车株式会社 | Variable valve actuator assembly integrated with valve bridge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3493296B2 (en) * | 1997-11-25 | 2004-02-03 | 茂 長野 | engine |
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- 2013-06-08 CN CN201310229266.9A patent/CN103277209B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538574A (en) * | 1983-03-25 | 1985-09-03 | Fiat Auto S.P.A. | Supercharged internal combustion engine with a cylinder head having four valves per cylinder |
| US4635592A (en) * | 1984-03-14 | 1987-01-13 | Bombardier-Rotax Gesellschaft M.B.H. | Valve control for an internal combustion engine |
| EP0580039A1 (en) * | 1992-07-24 | 1994-01-26 | Adam Opel Ag | Piston internal combustion engine, in particular diesel engine |
| CN102477878A (en) * | 2010-11-29 | 2012-05-30 | 现代自动车株式会社 | Variable valve actuator assembly integrated with valve bridge |
| CN102305147A (en) * | 2011-03-14 | 2012-01-04 | 隆鑫通用动力股份有限公司 | Gasoline engine cylinder head assembly and gasoline engine |
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| CN103277209A (en) | 2013-09-04 |
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