CN104564408A - Low oil consumption type engine crankcase and engine set - Google Patents
Low oil consumption type engine crankcase and engine set Download PDFInfo
- Publication number
- CN104564408A CN104564408A CN201310491642.1A CN201310491642A CN104564408A CN 104564408 A CN104564408 A CN 104564408A CN 201310491642 A CN201310491642 A CN 201310491642A CN 104564408 A CN104564408 A CN 104564408A
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- China
- Prior art keywords
- engine
- vent
- motor
- engine oil
- crankcase
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a low oil consumption type engine crankcase and engine set comprising a crankcase and a cylinder head. An inner cavity of the crankcase is communicated with a rocker arm compartment at the upper end of the cylinder head through an air passage, the inner cavity is provided with an engine oil baffle used for blocking splashing engine oil from entering the air passage, and the baffle inclines from the air passage to an engine oil storage chamber. Since the engine oil baffle is added, splashing liquid engine oil can be effectively blocked from entering the air passage and entering the rocker arm chamber through the air passage while engine oil splash lubrication is unaffected, and further unnecessary consumption of the engine oil is reduced; besides, the liquid engine oil can be prevented from accumulating in the air passage to affect delivery of fresh air, and the requirements on conversion reaction in a silencer are met; the low oil consumption type engine crankcase and engine set is simple in structure and has positive practical significance to improvement of effective utilization of the engine oil and reduction of use cost.
Description
Technical field
The present invention 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 the machine that can be converted into mechanical energy of other form, can composition 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, and has the conventional engine of extensive use, and general power is within 20kW, and large flexible is very strong, and what have is highly professional, so general also referred to as mini engine.The feature of general purpose engine be structure simple, use easy and simple to handle, with low cost, be mainly used in agricultural equipment for plant protection, graden machine, small machine, generator set, building machinery, fire-fighting series facility, amusement kart, water-powered and model airplane power etc.
The air vent being communicated to rocker arm chamber from crankcase intracavity is provided with near the cylinder of some motor, such as Chinese invention patent Authorization Notice No. CN 201593452 U 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 by the rocker arm chamber of air vent with cylinder head upper end, cylinder head cover is provided with inlet hole makes the external world communicate with rocker arm chamber, the one-way valve of negative pressure unlatching is set at air inlet position, cylinder head cover is also provided with an air outlet hole, the one-way valve that air outlet hole is opened by malleation is communicated with silencing apparatus, fresh air sucks in rocker arm chamber by the negative pressure formed in crankcase during reciprocating motion of the pistons by general purpose engine to be laid in, the fresh air of deposit is forced to deliver in silencing apparatus by the malleation formed in crankcase during reciprocating motion of the pistons, HC, CO, NOx in the high-temp waste gas that motor is discharged give off carry out sufficient chemical reaction with the oxygen of abundance in silencing apparatus after again, effectively reduce the toxic emission of general purpose engine.Owing to adding 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 motion of splashing while lubricating movement part, part machine oil can enter rocker arm chamber by the air vent on casing, the conveying affecting fresh air piled up by liquid machine oil 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 that cylinder head cover is communicated with air filter, enter into combustion chambers burn by Carburetor again and consume.
Therefore, be necessary that the low exhaust gas emission engine housing to having air vent improves, can preventing portion divide machine oil can enter rocker arm chamber by air vent while not affecting machine oil splash lubrication, prevent the unnecessary consumption of machine oil, and can prevent machine oil from air vent, piling up the conveying affecting fresh air, meet the needs of conversion reaction in silencing apparatus.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of low oil consumption h type engine h casing and motor thereof, can preventing portion divide machine oil can enter rocker arm chamber by air vent while not affecting machine oil splash lubrication, prevent the unnecessary consumption of machine oil, and can prevent machine oil from air vent, piling up the conveying affecting fresh air, meet the needs of conversion reaction in silencing apparatus.
Low oil consumption h type engine h casing of the present invention and motor thereof, comprise crankcase and cylinder head, the inner chamber of described crankcase is communicated with by the rocker arm chamber of air vent with described cylinder head upper end, described inner chamber is provided with for stopping that splashing machine oil enters the engine oil baffle of described air vent, and described baffle plate tilts from described air vent to machine oil accumulator.
Further, described air vent by be located at described inner chamber the first vent and be located at described rocker arm chamber the second vent be connected form, described engine oil baffle is arranged on surrounding outside described first vent; Engine oil baffle realizes its gear functional oil by going along with sb. to guard him around the first vent, and its effect is 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 engine oil baffle comprises and is arranged in overhead gage above described first vent, is positioned at the lower pedal below described first vent and connects the baffle plate of described overhead gage, lower pedal; Three pieces of baffle plates make the cross section of engine oil baffle in " C " shape, and this structure is simple, 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 setting and its angle of inclination is 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 engine oil baffle 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 is concentrated, and ensures the gear oil effect of engine oil baffle further, extends the working life of engine oil baffle.
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 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 in engine oil baffle, and plane of inclination can guide the machine oil got rid of to after machine oil steam condensing in the machine oil or the first vent of the first vent to flow back to accumulator.
The invention also discloses and a kind ofly apply described low oil consumption h type engine h casing and the motor of motor thereof, described low oil consumption h type engine h casing and motor thereof are installed on motor.
Beneficial effect of the present invention: low oil consumption h type engine h casing of the present invention and motor thereof, owing to having set up engine oil baffle, effectively can stop that while not affecting machine oil splash lubrication the liquid machine oil doing 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 liquid machine oil from air vent, piling up the conveying affecting fresh air, meet the needs of conversion reaction in silencing apparatus; Structure of the present invention is simple, has positive realistic meaning to effective rate of utilization, the reduction user cost improving machine oil.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is perspective view of the present invention;
Fig. 2 is A place enlarged view in Fig. 1;
Fig. 3 is the perspective view of another angle of the present invention.
Embodiment
Fig. 1 is perspective view of the present invention, Fig. 2 is A place enlarged view in Fig. 1, Fig. 3 is the perspective view of another angle of the present invention, as shown in the figure: low oil consumption h type engine h casing of the present invention and motor thereof, 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 end by air vent (not shown), described inner chamber is provided with for stopping that splashing machine oil enters the engine oil baffle 3 of described air vent, and described baffle plate 3 tilts from described air vent to machine oil accumulator.Cylinder head 2 is assemblied in cylinder 21 upper end of casing, and cylinder head cover (not shown) is assemblied in cylinder head 2 upper end, and seal with sealing gasket between cylinder head cover and cylinder head 2, the cavity between cylinder head 2 and cylinder head cover 5 is rocker arm chamber; The inner chamber of crankcase 1 be its sidewall the internal cavity that encloses, sidewall is provided with multiple bolt hole for being connected with crankcase cover; Engine oil baffle 3 is set up at inner chamber, effectively can stop that while not affecting machine oil splash lubrication the liquid machine oil doing 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 liquid machine oil from air vent, piling up the conveying affecting fresh air, meet the needs of conversion reaction in silencing apparatus; The present invention does not limit concrete structure and the position of engine oil baffle 3, if can realize its keep off oily effect all can, its structure should make inner-cavity structure compact as far as possible certainly, and must not have influence on the motion of other parts and the ventilation of air vent; Engine oil baffle 3 both can be one-body molded on cabinets cavity, also can make separately before being fixed on air vent by fixed block.Baffle plate tilts towards accumulator, and the machine oil being convenient to condense in air vent flows back to accumulator along baffle plate.
In the present embodiment, described air vent is connected by the first vent 41 being located at described inner chamber and the second vent 42 of being located at described rocker arm chamber and forms, and described engine oil baffle 3 is arranged on surrounding outside described first vent 41; First vent 41 is connected with the second vent 42 and crankcase intracavity is communicated with rocker arm chamber; Specifically, the first vent 41 is located at the inwall of crankcase 1 and is located at the bottom surface of rocker arm chamber bottom and cylinder head 2 near cylinder 21, second vent 42, and the air vent that two vents are formed is parallel all the time with the central shaft of cylinder 21; Engine oil baffle 3 realizes its gear functional oil by going along with sb. to guard him around the first vent 41, and its effect is 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 engine oil baffle 3 comprises and is arranged in overhead gage 31 above described first vent 41, is positioned at the lower pedal 32 below described first vent 41 and connects the baffle plate 33 of described overhead gage 31, lower pedal 32; Three pieces of baffle plates make the cross section of engine oil baffle 3 in " C " shape, overhead gage 31, lower pedal 32 and middle baffle plate 33 can stop the liquid machine oil of splashing, fresh air and portion gas machine oil then from the both-side opening of " C " shape engine oil baffle 3 (when the side of engine oil baffle 3 and the inwall of crankcase 1 are connected as a body, then only opposite side opening) enter air vent, fresh air is for meeting the needs of conversion reaction in silencing apparatus, gas machine oil then condenses into liquid in air vent, and flows out from the first vent 41; This structure is simple, 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 is inclined relative to horizontal setting and its angle of inclination is identical with the angle of inclination of cylinder 21; Machine oil splashes along with crankshaft rotating, the middle baffle plate of this structure 33 with do the machine oil area of contact of move of splashing and reach maximum, engine oil baffle 3 can be made to have and to keep off oily effect significantly.
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 engine oil baffle 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 is concentrated, and ensures the gear oil effect of engine oil baffle 3 further, extends the working life of engine oil baffle 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 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, gas machine oil and the liquid machine oil be deposited in engine oil baffle 3 of condensation in air vent can flow into machine oil accumulator along plane of inclination 32a, and making it can not be deposited in engine oil baffle 3 affects ventilatory effect; Plane of inclination 32a can guide the machine oil got rid of to after machine oil steam condensing in the machine oil or the first vent 41 of the first vent 41 to flow back to accumulator.
The invention also discloses and a kind ofly apply described low oil consumption h type engine h casing and the motor of motor thereof, described low oil consumption h type engine h casing and motor thereof are 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.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. one kind low oil consumption h type engine h casing and motor thereof, comprise crankcase and cylinder head, the inner chamber of described crankcase is communicated with by the rocker arm chamber of air vent with described cylinder head upper end, it is characterized in that: described inner chamber is provided with for stopping that splashing machine oil enters the engine oil baffle of described air vent, and described baffle plate tilts from described air vent to machine oil accumulator.
2. low oil consumption h type engine h casing according to claim 1 and motor thereof, it is characterized in that: described air vent by be located at described inner chamber the first vent and be located at described rocker arm chamber the second vent be connected form, described engine oil baffle is arranged on surrounding outside described first vent.
3. low oil consumption h type engine h casing according to claim 2 and motor thereof, is characterized in that: described engine oil baffle comprises and is arranged in overhead gage above described first vent, is positioned at the lower pedal below described first vent and connects the baffle plate of described overhead gage, lower pedal.
4. low oil consumption h type engine h casing according to claim 3 and motor thereof, is characterized in that: described middle baffle plate is inclined relative to horizontal setting and its angle of inclination is identical with the angle of inclination of cylinder.
5. low oil consumption h type engine h casing according to claim 4 and motor thereof, 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. the low oil consumption h type engine h casing according to any one of claim 3 to 5 and motor thereof, it is characterized in that: the surface of close described first vent of described lower pedal is a plane of inclination, and described plane of inclination tilts from described first vent to machine oil accumulator.
7. the low oil consumption h type engine h casing in application rights requirement 1 to 6 described in arbitrary claim and a motor for motor thereof, is characterized in that: described low oil consumption h type engine h casing and motor thereof are installed on motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310491642.1A CN104564408A (en) | 2013-10-18 | 2013-10-18 | Low oil consumption type engine crankcase and engine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310491642.1A CN104564408A (en) | 2013-10-18 | 2013-10-18 | Low oil consumption type engine crankcase and engine set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564408A true CN104564408A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310491642.1A Pending CN104564408A (en) | 2013-10-18 | 2013-10-18 | Low oil consumption type engine crankcase and engine set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564408A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194320A (en) * | 2016-07-26 | 2016-12-07 | 隆鑫通用动力股份有限公司 | Engine rocker room lubricating structure and electromotor thereof |
| CN112594085A (en) * | 2020-12-16 | 2021-04-02 | 重庆怡之驰机械有限公司 | Four-column engine cover body for automobile |
-
2013
- 2013-10-18 CN CN201310491642.1A patent/CN104564408A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194320A (en) * | 2016-07-26 | 2016-12-07 | 隆鑫通用动力股份有限公司 | Engine rocker room lubricating structure and electromotor thereof |
| CN112594085A (en) * | 2020-12-16 | 2021-04-02 | 重庆怡之驰机械有限公司 | Four-column engine cover body for automobile |
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| PB01 | Publication | ||
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Application publication date: 20150429 |