CN203584504U - Low exhaust emission type engine case and engine thereof - Google Patents
Low exhaust emission type engine case and engine thereof Download PDFInfo
- Publication number
- CN203584504U CN203584504U CN201320650544.3U CN201320650544U CN203584504U CN 203584504 U CN203584504 U CN 203584504U CN 201320650544 U CN201320650544 U CN 201320650544U CN 203584504 U CN203584504 U CN 203584504U
- Authority
- CN
- China
- Prior art keywords
- machine oil
- baffle plate
- vent
- low exhaust
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000010721 machine oil Substances 0.000 claims description 77
- 238000005452 bending Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000005461 lubrication Methods 0.000 abstract description 6
- 239000010705 motor oil Substances 0.000 abstract 8
- 230000003584 silencer Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 15
- 230000030279 gene silencing Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000003921 oil Substances 0.000 description 3
- 230000003519 ventilatory effect Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012208 gear oil Substances 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a low exhaust emission type engine case and an engine thereof. The low exhaust emission type engine case comprises a crankcase and a cylinder head, wherein an inner cavity of the crankcase is communicated with a rocker chamber in the upper end of the cylinder head through an air passage, and an engine oil baffle for preventing splashed engine oil from entering the air passage is arranged in the inner cavity. According to the low exhaust emission type engine case and the engine thereof, due to additional arrangement of the engine oil baffle, the engine oil performing splashing motion can be effectively prevented from entering the air passage and entering the rocker chamber through the air passage while the engine oil splash lubrication is not influenced, unnecessary consumption of the engine oil is reduced, moreover, the liquid engine oil can be prevented from being accumulated in the air passage and influencing conveying of fresh air, and requirements of a conversion reaction in a silencer are met; and the low exhaust emission type engine case and the engine thereof are simple in structure and have positive practical significance for increase of effective utilization rate of the engine oil and reduction of use cost.
Description
Technical field
The utility model relates to a kind of power engine parts and application thereof, particularly a kind of engine components and application thereof.
Background technique
Motor is a kind of can, the machine that can be converted into mechanical energy of other form, be comprised of parts such as cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition systems.General purpose engine refers to except automobile-used, aviation are used to have the conventional engine of extensive use, and general power is in 20kW, and large flexible is very strong, and what have is highly professional, so generally also referred to as mini engine.The feature of general purpose engine be simple in structure, use easy and simple to handle, with low costly, be mainly used in agricultural equipment for plant protection, graden machine, small machine, generator set, building machinery, fire-fighting series facility, kart for amusement, water-powered and model airplane power etc.
Near the cylinder of some motor, be provided with the air vent that is communicated to rocker arm chamber from crankcase intracavity, for example Chinese utility model patent notice of authorization CN201593452U discloses a kind of general purpose engine of low exhaust gas emission, comprise general purpose engine casing, cylinder head, cylinder head cover, cavity between cylinder head and cylinder head cover is rocker arm chamber, silencing apparatus is communicated with the relief opening of cylinder head by outlet pipe, the crankcase intracavity of casing is communicated with the rocker arm chamber of cylinder head upper end by air vent, cylinder head cover is provided with inlet hole makes the external world communicate with rocker arm chamber, at air inlet position, the one-way valve that negative pressure is opened is set, on cylinder head cover, be also provided with an air outlet hole, the one-way valve that air outlet hole is opened by malleation is communicated with silencing apparatus, the negative pressure forming in crankcase during reciprocating motion of the pistons by general purpose engine sucks fresh air in rocker arm chamber and lays in, the malleation forming in crankcase during reciprocating motion of the pistons forces the fresh air of deposit to deliver in silencing apparatus, make motor discharge high-temp waste gas in HC, CO, NOx can in silencing apparatus, carry out giving off again after sufficient chemical reaction with sufficient oxygen, effectively reduce the toxic emission of general purpose engine.Owing to having increased air vent between crankcase intracavity and rocker arm chamber, when engine operation due to the High Rotation Speed of connecting bar and crankshaft, do the machine oil of the motion of splashing in lubricating movement part, part machine oil can enter rocker arm chamber by the air vent on casing, liquid machine oil is piled up the conveying that affects fresh air in air vent, be unfavorable for the conversion reaction in silencing apparatus, machine oil steam enters rocker arm chamber by air vent will form too much machine oil steam, these machine oil steam enter air filter by the breathing pipe being communicated with air filter on cylinder head cover, by Carburetor, enter into combustion chambers burn consumption again.
Therefore, be necessary that the low exhaust gas emission engine housing to having air vent improves, when not affecting machine oil splash lubrication, can prevent that part machine oil from can enter rocker arm chamber by air vent, prevent the unnecessary consumption of machine oil, and can prevent that machine oil from piling up the conveying that affects fresh air in air vent, meet the needs of conversion reaction in silencing apparatus.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of low exhaust gas emission h type engine h casing and motor thereof, when not affecting machine oil splash lubrication, can prevent that part machine oil from can enter rocker arm chamber by air vent, prevent the unnecessary consumption of machine oil, and can prevent that machine oil from piling up the conveying that affects fresh air in air vent, meet the needs of conversion reaction in silencing apparatus.
Low exhaust gas emission h type engine h casing of the present utility model, comprise crankcase and cylinder head, the inner chamber of described crankcase is communicated with the rocker arm chamber of described cylinder head upper end by air vent, and described inner chamber is provided with for stopping that the machine oil that splashes enters the machine oil baffle plate of described air vent.
Further, described air vent is connected and is formed by the second vent of being located at the first vent of described inner chamber and being located at described rocker arm chamber, and described machine oil baffle plate is arranged on surrounding outside described the first vent; Machine oil baffle plate is realized its gear functional oil by going along with sb. to guard him around the first vent, and its effect directly, effectively, less to the influence degree of crankcase intracavity original structure, and can take the ventilatory function of air vent into account.
Further, described machine oil baffle plate comprise be arranged in described the first vent top overhead gage, be positioned at the lower pedal of described the first vent below and connect the baffle plate of described overhead gage, lower pedal; Three baffle plates make the cross section of machine oil baffle plate be " C " shape, and this is simple in structure, reforming cost is low, and can accomplish comprehensively going along with sb. to guard him air vent.
Further, described middle baffle plate be inclined relative to horizontal arrange and its angle of inclination identical with the angle of inclination of cylinder.
Further, described overhead gage, lower pedal and middle baffle plate are one-body molded, and the bending part of the bending part of described overhead gage and described middle baffle plate, described lower pedal and described middle baffle plate is rounding off; Integrated machine oil baffle plate makes the fiting effect between each baffle plate better, reduces the complexity of assembly technology simultaneously, reduces and produces and assembly cost; Rounding off can reduce the resistance to machine oil, and the stress that can reduce parts concentrates, and further guarantees the gear oil effect of machine oil baffle plate, extends the working life of machine oil baffle plate.
Further, the surface of close described first vent of described lower pedal is a plane of inclination, and described plane of inclination tilts from described the first vent to machine oil accumulator; The inwall of lower pedal is inclined design, and the outflow of machine oil is convenient in plane of inclination, and machine oil can not be deposited on machine oil baffle plate, and plane of inclination can guide the machine oil getting rid of to after machine oil steam condensing in the machine oil of the first vent or the first vent to flow back to accumulator.
The invention also discloses a kind of motor of applying described low exhaust gas emission h type engine h casing, described low exhaust gas emission h type engine h casing is installed on motor.
The beneficial effects of the utility model: low exhaust gas emission h type engine h casing of the present utility model and motor thereof, owing to having set up machine oil baffle plate, when not affecting machine oil splash lubrication, can effectively stop that the liquid machine oil that does the motion of splashing enters air vent and enters rocker arm chamber by air vent, to reduce the unnecessary consumption of machine oil, and can prevent that liquid machine oil from piling up the conveying that affects fresh air in air vent, meet the needs of conversion reaction in silencing apparatus; The utility model is simple in structure, and the effective rate of utilization, the reduction user cost that improve machine oil are had to positive realistic meaning.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is perspective view of the present utility model;
Fig. 2 is A place enlarged view in Fig. 1;
Fig. 3 is the perspective view of another angle of the utility model.
Embodiment
Fig. 1 is perspective view of the present utility model, Fig. 2 is A place enlarged view in Fig. 1, Fig. 3 is the perspective view of another angle of the utility model, as shown in the figure: low exhaust gas emission h type engine h casing of the present utility model, comprise crankcase 1, cylinder head 2 and cylinder 21, the inner chamber of described crankcase 1 is communicated with the rocker arm chamber of described cylinder head 2 upper ends by air vent (not shown), and described inner chamber is provided with for stopping that the machine oil that splashes enters the machine oil baffle plate 3 of described air vent; Cylinder head 2 is assemblied in cylinder 21 upper ends of casing, and cylinder head cover (not shown) is assemblied in cylinder head 2 upper ends, and between cylinder head cover and cylinder head 2, with sealing gasket sealing, the cavity between cylinder head 2 and cylinder head cover 5 is rocker arm chamber; The inner chamber of crankcase 1 is its sidewall and encloses the internal cavity forming, and sidewall is provided with multiple bolts hole for being connected with crankcase cover; At inner chamber, set up machine oil baffle plate 3, when not affecting machine oil splash lubrication, can effectively stop that the liquid machine oil that does the motion of splashing enters air vent and enters rocker arm chamber by air vent, to reduce the unnecessary consumption of machine oil, and can prevent that liquid machine oil from piling up the conveying that affects fresh air in air vent, meet the needs of conversion reaction in silencing apparatus; The utility model does not limit concrete structure and the position of machine oil baffle plate 3, if can realize its keep off oily effect all can, its structure should make inner-cavity structure compactness as far as possible certainly, and must not have influence on the motion of other parts and the ventilation of air vent; Machine oil baffle plate 3 both can be one-body molded on cabinets cavity, also can make by fixed block and be fixed on before air vent separately.
In the present embodiment, described air vent is connected and is formed by the second vent 42 of being located at the first vent 41 of described inner chamber and being located at described rocker arm chamber, and described machine oil baffle plate 3 is arranged on described the first vent 41 outside surroundings; The first vent 41 is connected crankcase intracavity is communicated with rocker arm chamber with the second vent 42; Specifically, the first vent 41 is located at the inwall of crankcase 1 and is located near cylinder 21, the second vents 42 bottom surface that rocker arm chamber bottom is cylinder head 2, and the air vent that two vents form is parallel all the time with the central shaft of cylinder 21; Machine oil baffle plate 3 is realized its gear functional oil by going along with sb. to guard him around the first vent 41, and its effect directly, effectively, less to the influence degree of crankcase intracavity original structure, and can take the ventilatory function of air vent into account.
In the present embodiment, described machine oil baffle plate 3 comprise be arranged in described the first vent 41 tops overhead gage 31, be positioned at the lower pedal 32 of described the first vent 41 belows and connect the baffle plate 33 of described overhead gage 31, lower pedal 32; Three baffle plates make the cross section of machine oil baffle plate 3 be " C " shape, overhead gage 31, lower pedal 32 and middle baffle plate 33 can stop the liquid machine oil splashing, fresh air and portion gas machine oil from the both-side opening of " C " shape machine oil baffle plate 3 (when a side of machine oil baffle plate 3 and the inwall of crankcase 1 are connected as a body, opposite side opening only) enter air vent, fresh air is for meeting the needs of silencing apparatus conversion reaction, gas machine oil condenses into liquid in air vent, and flows out from the first vent 41; This is simple in structure, reforming cost is low, and can accomplish comprehensively going along with sb. to guard him air vent.
In the present embodiment, described middle baffle plate 33 be inclined relative to horizontal arrange and its angle of inclination identical with the angle of inclination of cylinder 21; Machine oil splashes along with crankshaft rotating, and the middle baffle plate 33 of this structure reaches maximum with the machine oil area of contact of doing the motion of splashing, can make machine oil baffle plate 3 have the oily effect of significant gear.
In the present embodiment, described overhead gage 31, lower pedal 32 and middle baffle plate 33 are one-body molded, and described overhead gage 31 is rounding off with the bending part of described middle baffle plate 33, described lower pedal 32 with the bending part of described middle baffle plate 33; Integrated machine oil baffle plate 3 makes the fiting effect between each baffle plate better, reduces the complexity of assembly technology simultaneously, reduces and produces and assembly cost; Rounding off can reduce the resistance to machine oil, and the stress that can reduce parts concentrates, and further guarantees the gear oil effect of machine oil baffle plate 3, extends the working life of machine oil baffle plate 3.
In the present embodiment, the surface of close described first vent 41 of described lower pedal 32 is a plane of inclination 32a, and described plane of inclination 32a tilts from described the first vent 41 to machine oil accumulator (not shown); The inwall of lower pedal 32 is inclined design, and plane of inclination 32a is convenient to the outflow of machine oil; When after engine water placing flat, the gas machine oil of condensation in air vent and the liquid machine oil being deposited in machine oil baffle plate 3 can flow into machine oil accumulator along plane of inclination 32a, make it can not be deposited on machine oil baffle plate 3 and affect ventilatory effect; Plane of inclination 32a can guide the machine oil getting rid of to after machine oil steam condensing in the machine oil of the first vent 41 or the first vent 41 to flow back to accumulator.
The invention also discloses a kind of motor of applying described low exhaust gas emission h type engine h casing, described low exhaust gas emission h type engine h casing is installed on motor; Described engine application is in motorcycle or universal machine, and universal machine comprises pump, blower fan, compressor, subtracts variable-speed motor, generator etc.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. a low exhaust gas emission h type engine h casing, comprise crankcase and cylinder head, the inner chamber of described crankcase is communicated with the rocker arm chamber of described cylinder head upper end by air vent, it is characterized in that: described inner chamber is provided with for stopping that the machine oil that splashes enters the machine oil baffle plate of described air vent.
2. low exhaust gas emission h type engine h casing according to claim 1, it is characterized in that: described air vent is connected and is formed by the second vent of being located at the first vent of described inner chamber and being located at described rocker arm chamber, and described machine oil baffle plate is arranged on surrounding outside described the first vent.
3. low exhaust gas emission h type engine h casing according to claim 2, is characterized in that: described machine oil baffle plate comprise be arranged in described the first vent top overhead gage, be positioned at the lower pedal of described the first vent below and connect the baffle plate of described overhead gage, lower pedal.
4. low exhaust gas emission h type engine h casing according to claim 3, is characterized in that: described middle baffle plate be inclined relative to horizontal arrange and its angle of inclination identical with the angle of inclination of cylinder.
5. low exhaust gas emission h type engine h casing according to claim 4, it is characterized in that: described overhead gage, lower pedal and middle baffle plate are one-body molded, and the bending part of the bending part of described overhead gage and described middle baffle plate, described lower pedal and described middle baffle plate is rounding off.
6. according to the low exhaust gas emission h type engine h casing described in any one in claim 3 to 5, it is characterized in that: the surface of close described first vent of described lower pedal is a plane of inclination, described plane of inclination tilts from described the first vent to machine oil accumulator.
7. application rights requires a motor for the low exhaust gas emission h type engine h casing described in arbitrary claim in 1 to 6, it is characterized in that: described low exhaust gas emission h type engine h casing is installed on motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320650544.3U CN203584504U (en) | 2013-10-22 | 2013-10-22 | Low exhaust emission type engine case and engine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320650544.3U CN203584504U (en) | 2013-10-22 | 2013-10-22 | Low exhaust emission type engine case and engine thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584504U true CN203584504U (en) | 2014-05-07 |
Family
ID=50582440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320650544.3U Expired - Lifetime CN203584504U (en) | 2013-10-22 | 2013-10-22 | Low exhaust emission type engine case and engine thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584504U (en) |
-
2013
- 2013-10-22 CN CN201320650544.3U patent/CN203584504U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |