CN103277209A - Crossed-airway cylinder cover assembly structure of single cylinder engine - Google Patents
Crossed-airway cylinder cover assembly structure of single cylinder engine Download PDFInfo
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- CN103277209A CN103277209A CN2013102292669A CN201310229266A CN103277209A CN 103277209 A CN103277209 A CN 103277209A CN 2013102292669 A CN2013102292669 A CN 2013102292669A CN 201310229266 A CN201310229266 A CN 201310229266A CN 103277209 A CN103277209 A CN 103277209A
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Abstract
The invention discloses a crossed-airway cylinder cover assembly structure of a single cylinder engine and belongs to the technical field of internal combustion engine cylinder cover parts. Air inlet passage openings and air outlet passage openings are distributed on the bottom surface of the cylinder cover in a crossed mode, two air inlet passages and two air outlet passages are distributed in the cylinder cover in a crossed mode and surround a central air sprayer, the two air outlet passages are combined in the cylinder cover and led out from the lateral surface of the cylinder cover, the two air inlet passages are led out from the same lateral surface of the cylinder cover, and swinging arms of an air inlet door and an air outlet door are fixedly installed on a swinging arm support at the top of the cylinder cover. The crossed-airway cylinder cover assembly structure solves the problem that in the prior art, air inlet passages and air outlet passages are parallelly distributed on the cylinder cover, thermal load of the air outlet passages is concentrated, interference exists in air inlet flowing and air flow mixing is insufficient, adopts the crossed airway distribution, achieves even air mixing, enables thermal load around the airways to be dispersed and stable, can effectively improve the dynamic property, economical efficiency and emission indexes of the engine and is suitable for diesel engine cylinder cover assemblies of various types.
Description
Technical field
The invention belongs to the 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 the internal combustion (IC) Engine Design of diesel engine air flue and distribution device is a very crucial part, the diesel engine of present every cylinder 4 valves mostly adopts the parellel air flue to arrange, be air outlet flue, intake duct intercross arrangement, valve gap bridge intercross arrangement, each valve rocker are passed a bridge by valve and are controlled the switching of two intake valves or exhaust valve simultaneously.Traditional air flue arranged side by side is arranged and is existed air-flow to mix problems such as inhomogeneous, that air-flow is interfered, the interior heat load of cylinder cap is concentrated.Therefore, need in design process, consider compound mode and the position of air flue, and the distribution device of under associated components constraint conditio on the cylinder cap, designing more efficient, rational air flue arrangement and matching.
Summary of the invention
The objective of the invention is at traditional air flue arranged side by side arrange exist air-flow mix inhomogeneous, air-flow is interfered, heat load problem such as is concentrated and a kind of single cylinder engine air crossing cylinder cap assembly structure is provided in the cylinder cap, it is characterized in that, the key of single cylinder engine air crossing cylinder cap structure is that the air flue of single cylinder engine cylinder cap is arranged and distribution device, it is air inlet and exhaust piper entrance intercross arrangement on the cylinder cap bottom surface, 2 suction tude and 2 outlet pipe intercross arrangement are in cylinder head body, and the form that is around the center oil sprayer distributes; Concrete structure is fixed on to be to intersect on the valve rocker bearing by the valve rocker of air inlet and exhaust and is in tilted layout, and the tail end of the valve rocker of air inlet and exhaust is separately fixed on two valve tappets; Last valve is passed a bridge and is passed a bridge into the criss-crossing layout with following valve, and last valve gap bridge top is connected with the valve rocker front end of air inlet, and following valve gap bridge top is connected with the valve rocker front end of exhaust, forms the air flue of cylinder cap and arranges and air distributing device; The air flue of described cylinder cap is arranged and air distributing device is fixed on the air flue top surface of cylinder cover of air flue cylinder cap main body.
Described first, second intake duct is communicated with intake manifold on two sides of air flue cylinder cap.
Merging into an exhaust manifold in air flue cylinder cap main body after, described first, second air outlet flue is communicated with gas exhaust manifold by the interface on the air flue cylinder cap arcuate flanks boss.
Described first, second intake duct synthesizes intake manifold outside air flue cylinder cap main body.
The valve rocker of described air inlet and exhaust is to intersect and is in tilted layout two rocking arm coaxial rotation.
The protruding spherical radius of the front end of described air inlet and exhaust valve rocking arm is slightly less than valve gap bridge top concave spherical surface radius, the point contact that makes rocking arm pass through two spheres is passed a bridge to valve and is transmitted downforce, under the influence of deformation and oil film factor, can become the face contact by contacting in the real process, realize stable, the good power transmission process of symmetry properties.
Described intake manifold is supported on the air flue cylinder cap arcuate flanks by the intake manifold retainer ring.
The invention has the beneficial effects as follows that having overcome traditional air flue layout arranged side by side exists air-flow to mix defective inhomogeneous, that air-flow is interfered, the interior heat load of cylinder cap is concentrated, the present invention is owing to adopt the valve rocker intersection to be in tilted layout, last valve is passed a bridge and is passed a bridge into the scheme that criss-crossing is arranged with following valve, therefore have and guarantee that rocking arm crosses the centre of form that valve is passed a bridge to the valve equivalent action center of exerting pressure of passing a bridge, realize the characteristics of the power transmission process stable, that symmetry properties is good.
Description of drawings
Fig. 1 is single cylinder engine air crossing cylinder cap assembly structure schematic representation.
Fig. 2 arranges and the distribution device schematic representation for air flue.
Fig. 3 is Fig. 2 plan view.
Fig. 4 is last valve gap bridge schematic representation.
Fig. 5 is following valve gap bridge schematic representation.
Fig. 6 arranges schematic representation for the inlet and outlet manifold.
Number in the figure is: 1-inlet valve rocker, 2-exhaust valve rocker arm, 3-valve rocker bearing, the 4-intake valve is passed a bridge, and the 5-exhaust valve is passed a bridge, the 6-spring seat of honour, the 7-valve spring, 8-valve tappet 9-injector pressing device, 10-air flue cylinder cap main 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, the 17-gas exhaust manifold, the 18-fold, 19-valve, 20-first air outlet flue, 21-second air outlet flue, 22-first intake duct, 23-second intake duct, 24-exhaust port, the protruding sphere of 25-, the 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 cap structure is that the air flue of single cylinder engine cylinder cap is arranged and distribution device, is illustrated below in conjunction with accompanying drawing.
Figure 1 shows that single cylinder engine air crossing cylinder cap structural representation.Among the figure, intake valve rocking arm 1 is fixed on the valve rocker bearing 3 with exhaust valve rocking arm 2, is to intersect to be in tilted layout, and valve rocker bearing 3 is fixed on the end face 14 of cylinder cap main 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; The protruding sphere 25 of the front end of intake valve rocking arm 1 and the intake valve 4 end face concave spherical surfaces 26 of passing a bridge contact, and the protruding sphere of the front end of exhaust valve rocking arm 2 and the exhaust valve 5 end face concave spherical surfaces of passing a bridge contact; Intake valve pass a bridge 4 and exhaust valve 5 criss-crossings of passing a bridge arrange (shown in Fig. 2,3); Valve 19 is connected with the spring seat of honour 6 by the valve stem top groove, and the 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 the valve stem groove, and valve spring 7 bottoms are installed on the end face 14 of cylinder cap main body 10.The above is formed the air flue of cylinder cap assembly and arranges and distribution device.
Protruding sphere 25 radiuses of front end of described intake valve rocking arm 1 and exhaust valve rocking arm 2 are slightly less than intake valve and pass a bridge 4 and exhaust valve 5 top concave spherical surfaces, 26 radiuses (shown in Fig. 2,4,5) of passing a bridge, the point contact that makes rocking arm pass through two spheres is passed a bridge to valve and is transmitted downforce, under the influence of deformation and oil film factor, can become the face contact by contacting in the real process, realize stable, the good power transmission process of symmetry properties.
Described first intake duct 23 and second intake duct 22 merge into intake manifold 16 in air flue cylinder cap main body 10 outsides, intake manifold 16 is fixed on the cylinder cap side by bolt hole 12, and is supported in (shown in Fig. 1,6) on the air flue cylinder cap arcuate flanks 13 by intake manifold retainer ring 15.
Described first air outlet flue 21 and second air outlet flue 20 are communicated with gas exhaust manifold 17 merge into an exhaust manifold in air flue cylinder cap main body 10 after, and gas exhaust manifold 17 is fixed in by bolt hole 24 on the boss of cylinder cap arcuate flanks 13 (shown in Fig. 1,6).
Intake manifold is converged outside cylinder, consideration exports the installation sealing problem that opposed form causes by intake manifold, adopt elastic material as the material of intake manifold, in fastening installation process, easily produce many folds 18 of tube wall place processing of large deformation simultaneously, be convenient to reduce internal stress.Inlet and outlet manifold outlet direction is all towards the top of cylinder cap real work position, and the upper end connects filter cleaner and baffler respectively.Consider because of the long rigidity problem that produces of intake manifold, cast out a boss and install and fix circle in the above for fixing intake manifold at cylinder cap, and then increase its support stiffness.
Secondly pass a bridge for higher intake valve, for guaranteeing its stability in the to-and-fro motion process in vertical direction, prevent lateral vibration, the pass a bridge valve stem mounting hole degree of depth of both sides of valve is increased, adopt the bigger valve of top length simultaneously, and then make the valve gap bridge under the guiding function that lengthens valve stem, realize the stable of vertical direction motion by mounting hole.Valve is passed a bridge the inboard stiffening rib that adopts to increase its rigidity.
Claims (7)
1. single cylinder engine air crossing cylinder cap assembly structure, it is characterized in that, the key of single cylinder engine air crossing cylinder cap structure is that the air flue of single cylinder engine cylinder cap is arranged and distribution device, it is air inlet and exhaust piper entrance intercross arrangement on the cylinder cap bottom surface, 2 suction tude and 2 outlet pipe intercross arrangement are in cylinder head body, and the form that is around the center oil sprayer distributes; Concrete structure is fixed on to be to intersect on the valve rocker bearing by the valve rocker of air inlet and exhaust and is in tilted layout, and the tail end of the valve rocker of air inlet and exhaust is separately fixed on two valve tappets; Last valve is passed a bridge and is passed a bridge into the criss-crossing layout with following valve, and last valve gap bridge top is connected with the valve rocker front end of air inlet, and following valve gap bridge top is connected with the valve rocker front end of exhaust, forms the air flue of cylinder cap and arranges and air distributing device; The air flue of described cylinder cap is arranged and air distributing device is fixed on the air flue top surface of cylinder cover of air flue cylinder cap main body.
2. it is characterized in that according to the described a kind of single cylinder engine air crossing cylinder cap assembly structure of claim 1 described 2 suction tude are communicated with intake manifold on two sides of air flue cylinder cap.
3. it is characterized in that according to the described a kind of single cylinder engine air crossing cylinder cap assembly structure of claim 1, be communicated with gas exhaust manifold by the interface on the air flue cylinder cap arcuate flanks boss described 2 air outlet flues merge into an exhaust manifold in air flue cylinder cap main body after.
4. it is characterized in that according to the described a kind of single cylinder engine air crossing cylinder cap assembly structure of claim 1 described 2 intake ducts synthesize intake manifold outside air flue cylinder cap main body.
5. it is characterized in that according to the described a kind of single cylinder engine air crossing cylinder cap assembly structure of claim 1 that the valve rocker of air inlet and exhaust is to intersect and is in tilted layout two rocking arm coaxial rotation.
6. it is characterized in that according to the described a kind of single cylinder engine air crossing cylinder cap assembly structure of claim 1, the protruding spherical radius of the front end of air inlet and exhaust valve rocking arm is slightly less than valve gap bridge top concave spherical surface radius, the point contact that makes rocking arm pass through two spheres is passed a bridge to valve and is transmitted downforce, under the influence of deformation and oil film factor, can become the face contact by contacting in the real process, realize stable, the good power transmission process of symmetry properties.
7. it is characterized in that according to the described a kind of single cylinder engine air crossing cylinder cap assembly structure of claim 1 described intake manifold is supported on the air flue cylinder cap arcuate flanks by the 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 |
|---|---|---|---|
| CN201310229266.9A CN103277209B (en) | 2013-06-08 | 2013-06-08 | Single cylinder engine air crossing cylinder cap assembly structure |
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| CN103277209A true CN103277209A (en) | 2013-09-04 |
| CN103277209B CN103277209B (en) | 2015-08-19 |
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| CN201310229266.9A Active CN103277209B (en) | 2013-06-08 | 2013-06-08 | Single cylinder engine air crossing cylinder cap assembly structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (6)
| 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 |
| JPH11159333A (en) * | 1997-11-25 | 1999-06-15 | Shigeru Nagano | 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 |
-
2013
- 2013-06-08 CN CN201310229266.9A patent/CN103277209B/en active Active
Patent Citations (6)
| 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 |
| JPH11159333A (en) * | 1997-11-25 | 1999-06-15 | Shigeru Nagano | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329134A (en) * | 2014-11-09 | 2015-02-04 | 重庆鼎工机电有限公司 | Gas distribution mechanism of general engine |
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| CN103277209B (en) | 2015-08-19 |
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