CN202756098U - Noise-reduction heat-insulation diesel engine top enclosure - Google Patents
Noise-reduction heat-insulation diesel engine top enclosure Download PDFInfo
- Publication number
- CN202756098U CN202756098U CN 201220277282 CN201220277282U CN202756098U CN 202756098 U CN202756098 U CN 202756098U CN 201220277282 CN201220277282 CN 201220277282 CN 201220277282 U CN201220277282 U CN 201220277282U CN 202756098 U CN202756098 U CN 202756098U
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- China
- Prior art keywords
- engine
- overhead guard
- diesel engine
- top enclosure
- engine top
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- Expired - Lifetime
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- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a noise-reduction heat-insulation diesel engine top enclosure which is of a sandwich structure. A surrounding plate on the side face of the engine top enclosure is provided with a reinforcing rib, mounting holes are arranged on the engine top enclosure, an oil filling port plug hole is arranged below a right mounting hole, two ventilation areas are arranged at the lower end of the engine top enclosure and are provided with ventilation holes, and engine intake pipe mounting holes are arranged at the lower ends of the two ventilation areas respectively. In order to shield noise generated by valve actuation and the like of an engine rocker arm cover and to cover parts such as complicated lines and oil pipes on a cylinder cover, the engine cylinder cover is sealed and integrated. All the parts on the cylinder cover are respectively provided with a cooling system and are cooled by the respective cooling systems instead of air, and radiant heat released by the top of an engine is not cooled by the aid of air convection, so that the cooling effect is not affected after the engine cylinder cover is sealed. Trial assembly of the engine top enclosure is realized by a model machine, design reasonableness of the engine top enclosure is proved, and the engine top enclosure has a wide popularization space.
Description
Technical field
The utility model belongs to gas engine part, is specifically related to a kind of device that can effectively reduce diesel engine thermal radiation and noise.
Background technique
Along with the continuous progress of automotive industry technology, the competition of diesel engine market is more and more fierce, therefore improves the performance quality of diesel engine each side, is the main task that each diesel engine manufacturer faces.Because diesel engine power is large, so the noise of diesel engine of commercial vehicle is also larger, even outward appearance is also attractive in appearance far away from petrol engine.This is so that also be difficult to the impression of cancellation to diesel engine " coarse " and " roughly " from people's sensation.Diesel engine power greatly, the thermal radiation and the noise that produce during its work so be also very large, fettered the application space of diesel engine in high-end commercial car just because of diesel engine high noisy and thick mad external form.Therefore, how to reduce diesel engine for automobile thermal radiation and noise, manage to improve the external quality of diesel engine for automobile, become the major issue that the diesel engine manufacturing industry is all being considered.The utility model is by adopting the method for sound-insulating and heat-insulating cover, the noise that the shielding engine rocker cover spreads out of, be on the basis of purpose in isolated thermal radiation, the pipeline that countercylinder covers and engine wiring harness carry out covering design, improve the exterior quality of diesel engine by falling the heat drop noise, improve the coupling share of diesel engine on high-end commercial car, enlarge product competitive ability.
Summary of the invention
The purpose of this utility model is to provide a kind of four-in-line engine the low diesel engine overhead guard device of putting pressurized machine, thereby reduce noise and the thermal radiation of diesel engine, to reach the purpose of the exterior quality that improves diesel engine.
The technical solution of the utility model is: noise reduction insulation type diesel engine overhead guard is sandwich structure, and the coaming plate of motor overhead guard side is with stiffening rib.Be provided with mounting hole above the motor overhead guard, be provided with the oil filler consent below the mounting hole of right side, be provided with two plenum areas in motor overhead guard lower end, plenum area has vent hole.The lower end of two plenum areas is respectively equipped with the engine air inlet tube mounting hole.The noise that produces in order to shield valve motion in the engine rocker cover etc. simultaneously for component such as circuit complicated on the coating gas cylinder cap and oil pipes, seals integration with engine cylinder cover.Because all component all have cooling system separately on the cylinder cap, rather than dispel the heat by air, the radiation heat that send at while motor top neither rely on the convection current of air to cool off, so do not affect its cooling effect after the sealing.
Characteristics of the present utility model and produce an effect are, adopt the method for sound-insulating and heat-insulating cover, the noise that the shielding engine rocker cover spreads out of, be on the basis of purpose in isolated thermal radiation, the pipeline that countercylinder covers and engine wiring harness carry out covering design, improve the exterior quality of diesel engine by falling the heat drop noise, improve the coupling share of diesel engine on high-end commercial car, can enlarge product competitive ability.
Description of drawings
Fig. 1 is the utility model structural principle diagrammatic top view.
Fig. 2 is the three-dimensional sketch of the utility model inside structure.
Fig. 3 is diesel engine overhead guard sectional drawing.
Embodiment
Below in conjunction with accompanying drawing and by embodiment structural principle of the present utility model is described further.Noise reduction insulation type diesel engine overhead guard (such as Fig. 1), its structure is: motor overhead guard 1 is sandwich structure, the coaming plate 2 of motor overhead guard side is with stiffening rib, be provided with mounting hole 3 above the motor overhead guard, below the mounting hole of right side, be provided with oil filler consent 4, be provided with two plenum areas 5 in motor overhead guard lower end, plenum area has vent hole, and the lower end of two plenum areas is respectively equipped with engine air inlet tube mounting hole 6.The motor overhead guard is sandwich structure, and the heat-insulating and shock-absorbing asbestos layer is housed in the interlayer, and coaming plate 2 interior side external surfaces also are equipped with heat-insulating and shock-absorbing asbestos layer (such as Fig. 2, Fig. 3).For clear diesel engine classification, performance and the various technical parameter of indicating, from visually improving the thick mad external form of diesel engine, be provided with the position of nameplate marked area 7, the position of environmental protection grade board tag slot 8 and the position of using notice board tag slot 9 above the motor overhead guard simultaneously.
The coaming plate of motor overhead guard side is determined according to the profile of cylinder head top component.The diesel engine overhead guard adopts resistant to elevated temperatures engineering plastics as shell, and not only cost is low, and easily moulding.Noise reduction insulation type diesel engine overhead guard is installed with motor by 5 double-screw bolts or bolt (hole) and is fixed, and three mounting holes of machine overhead guard upper end are connected with the diesel engine rocker arm bonnet by 3 stud; All the other two suction tude mounting holes are connected with suction tude.Each mounting hole is equipped with rubber pad, plays the effect of damping noise reduction.The engine valve noise mainly is to spread out of by rocker arm bonnet.Therefore, the zone of diesel engine sound insulation overhead guard on rocker arm bonnet sealed, and posts the asbestos material paste layer that plays the sound insulation and noise reduction effect all around.Adopt asbestos layer except playing (diesel engine overhead guard cover with the metal rocker arm chamber between) damping effect, have simultaneously sound insulation, heat insulation and fire-retardant effect.Diesel engine sound insulation overhead guard has the vent hole for ventilation above oil sprayer, for reducing the temperature of near the low pressure fuel pipe the oil sprayer and wire harness.The nameplate marked area of diesel oil hood strikes out the sinking shape, and label is individually fixed in zone, heavy hole.The hole of the oil filler plug that leaves on the diesel oil hood also presents the sinking state, is conducive to reduce the height of oil filler plug.Whole diesel engine noise reduction heat-insulating top cover is covered in wire harness and low pressure, the high-pressure oil pipe that engine cylinder covers in the cover, can obviously improve the exterior quality of diesel engine.
This noise reduction insulation type diesel engine overhead guard is through model machine trial assembly, obtained the satisfied approval of many automobile productions producer, also sufficient proof the rationality of this device design, and have wide popularization space.
Claims (3)
1. noise reduction insulation type diesel engine overhead guard, it is characterized in that motor overhead guard (1) is sandwich structure, the coaming plate (2) of motor overhead guard side is with stiffening rib, be provided with mounting hole (3) above the motor overhead guard, below the mounting hole of right side, be provided with oil filler consent (4), be provided with two plenum areas (5) in motor overhead guard lower end, plenum area has vent hole, and the lower end of two plenum areas is respectively equipped with engine air inlet tube mounting hole (6).
2. according to noise reduction insulation type diesel engine overhead guard claimed in claim 1, it is characterized in that described motor overhead guard is sandwich structure, the heat-insulating and shock-absorbing asbestos layer is housed in the interlayer, the interior side external surface of described coaming plate (2) also is equipped with the heat-insulating and shock-absorbing asbestos layer.
3. according to claim 1 or 2 described noise reduction insulation type diesel engine overhead guards, it is characterized in that being provided with above the described motor overhead guard (1) position of nameplate marked area (7), the position of environmental protection grade board tag slot (8) and the position of using notice board tag slot (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277282 CN202756098U (en) | 2012-06-13 | 2012-06-13 | Noise-reduction heat-insulation diesel engine top enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277282 CN202756098U (en) | 2012-06-13 | 2012-06-13 | Noise-reduction heat-insulation diesel engine top enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756098U true CN202756098U (en) | 2013-02-27 |
Family
ID=47735285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220277282 Expired - Lifetime CN202756098U (en) | 2012-06-13 | 2012-06-13 | Noise-reduction heat-insulation diesel engine top enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756098U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047757A (en) * | 2013-03-15 | 2014-09-17 | 广西玉柴机器股份有限公司 | Combined type engine oil-blocking heat-insulation structure |
| CN104481691A (en) * | 2014-11-13 | 2015-04-01 | 重庆峰瑞塑料制品有限公司 | Gasoline engine hood |
| CN106121854A (en) * | 2016-08-31 | 2016-11-16 | 广西玉柴机器股份有限公司 | The hood of Diesel engine |
-
2012
- 2012-06-13 CN CN 201220277282 patent/CN202756098U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047757A (en) * | 2013-03-15 | 2014-09-17 | 广西玉柴机器股份有限公司 | Combined type engine oil-blocking heat-insulation structure |
| CN104047757B (en) * | 2013-03-15 | 2016-08-10 | 广西玉柴机器股份有限公司 | Composite engine gear oil heat insulation structural |
| CN104481691A (en) * | 2014-11-13 | 2015-04-01 | 重庆峰瑞塑料制品有限公司 | Gasoline engine hood |
| CN106121854A (en) * | 2016-08-31 | 2016-11-16 | 广西玉柴机器股份有限公司 | The hood of Diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Noise-reduction heat-insulation diesel engine top enclosure Effective date of registration: 20190612 Granted publication date: 20130227 Pledgee: Lingyuan steel enterprise limited liability company Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd. Registration number: 2019210000021 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |