CN112901366A - Small-size single cylinder diesel engine oil-cooling type crankcase cover end cover - Google Patents
Small-size single cylinder diesel engine oil-cooling type crankcase cover end cover Download PDFInfo
- Publication number
- CN112901366A CN112901366A CN202110014999.5A CN202110014999A CN112901366A CN 112901366 A CN112901366 A CN 112901366A CN 202110014999 A CN202110014999 A CN 202110014999A CN 112901366 A CN112901366 A CN 112901366A
- Authority
- CN
- China
- Prior art keywords
- oil
- crankcase cover
- cooled
- pressure release
- diesel 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims description 26
- 239000003921 oil Substances 0.000 claims abstract description 173
- 239000010705 motor oil Substances 0.000 claims abstract description 49
- 238000005192 partition Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 239000010710 diesel engine oil Substances 0.000 claims description 2
- 239000010721 machine oil Substances 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Images
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
- F02F7/0021—Construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/002—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention provides an oil-cooled crankcase cover end cover of a small single-cylinder diesel engine. The end cover of the oil-cooled crankcase cover of the small single-cylinder diesel comprises an oil-cooled crankcase cover, a pressure release valve and a radiator, an oil pump is arranged on the oil-cooled crankcase cover, an oil pump oil suction path and an oil pump oil outlet path are arranged on the oil pump, a pressure release return path is arranged on the pressure release valve, a pressure release oil return hole is formed in the side wall of the oil-cooled crankcase cover, the pressure release return path is communicated with the pressure release oil return hole, a front oil duct oil outlet hole and a rear oil duct oil outlet hole which are communicated with the pressure release valve are formed in the oil-cooled crankcase cover, a radiator oil inlet path is installed between the oil inlet of the radiator and the pressure release. The oil-cooled crankcase cover end cover of the small single-cylinder diesel provided by the invention has the advantages that the engine oil can be conveniently cooled, and the parts are prevented from being damaged due to overhigh engine oil temperature.
Description
Technical Field
The invention relates to the field of diesel engines, in particular to an oil-cooled crankcase cover end cover of a small single-cylinder diesel engine.
Background
The mute generator set is popular with users due to low noise and beautiful appearance; for a small mute generator set, the structure and the cost are restricted, the used power is generally a single-cylinder air-cooled diesel engine, the arrangement of the outer housing of the mute machine case ensures that the heat radiation performance of the generator set is far inferior to that of an open generator set, the working temperature of the diesel engine is high, the continuous operation power is obviously reduced, and the use reliability is not as good as that of the open generator set. The water-cooled diesel engine has good cooling effect, but the water channel system has complex structure, the volume of the generator set is increased, and the cost is increased.
Therefore, there is a need to provide a new small-sized single cylinder diesel engine oil-cooled crankcase cover end cover to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides the oil cooling type crankcase cover end cover of the small single-cylinder diesel, which can conveniently cool the engine oil and prevent the engine oil from being damaged by overhigh temperature.
The invention provides an oil-cooled crankcase cover end cover of a small single-cylinder diesel engine, which comprises: the oil cooling type crankcase cover is provided with an oil pump, the oil pump is arranged on the oil cooling type crankcase cover, an oil pump oil absorption path and an oil pump oil outlet path are arranged on the oil pump, a pressure relief backflow path is arranged on the pressure relief valve, a pressure relief oil return hole is formed in the side wall of the oil cooling type crankcase cover, the pressure relief backflow path is communicated with the pressure relief oil return hole, a front oil duct oil outlet hole and a rear oil duct oil outlet hole which are communicated with the pressure relief valve are formed in the oil cooling type crankcase cover, a radiator oil inlet path is installed between the oil inlet of the radiator and the pressure relief valve, and a radiator oil outlet path is installed between the oil outlet of the radiator.
Preferably, a crankcase cover oil inlet hole for engine oil to enter is formed in the side wall of the oil-cooled crankcase cover, and a crankshaft supporting hole communicated with the crankcase cover oil inlet hole is formed in the oil-cooled crankcase cover.
Preferably, an oil duct plug a and an oil duct plug B are installed inside an oil duct of the oil-cooled crankcase cover, an oil-cooled front-mounted oil duct is formed between the oil duct plug a and the oil duct plug B, and an oil-cooled rear-mounted oil duct is formed between the oil duct plug a and the crankshaft support hole.
Preferably, a filter screen for filtering engine oil impurities is arranged inside the oil inlet hole of the crankcase cover.
Preferably, the diameter of the oil-cooled rear oil duct is 6, and the diameter of the oil duct plug B is 8.
Preferably, the diameter of the oil-cooled preposed oil passage is 9, and the diameter of the oil passage plug A is 10.
Preferably, the oil duct plug B and the oil duct plug A are fastened and sealed by adopting inner hexagonal outer screwed plug threads with the thread diameters corresponding to each other.
Preferably, the inner side wall of the radiator is fixedly provided with a plurality of groups of partition plates distributed at equal intervals, and the partition plates are distributed in a staggered manner.
Compared with the related art, the oil-cooled crankcase cover end cover of the small single-cylinder diesel provided by the invention has the following beneficial effects:
the invention provides an oil-cooled crankcase cover end cover of a small single-cylinder diesel engine, which is used for cooling the engine oil of the diesel engine on the basis of a small single-cylinder air-cooled diesel engine so as to achieve a better cooling effect. Oil-cooled crankcase cover, oil pump, relief valve, machine oil radiator constitute diesel engine oil cooling system jointly to can carry out the heat dissipation cooling back to high temperature machine oil through the radiator, pump back to oil-cooled crankcase cover again, lubricate moving parts such as diesel engine bent axle and gather in the diesel engine box, thereby can be convenient for cool down machine oil, prevent that the machine oil high temperature from causing the damage to the part.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of an oil-cooled crankcase cover end cap for a small single cylinder diesel engine according to the present invention;
FIG. 2 is a schematic view of the internal structure of the crankcase cover shown in FIG. 1;
FIG. 3 is a schematic view of the internal structure of the crankcase cover shown in FIG. 1;
fig. 4 is a schematic view of the internal structure of the heat sink shown in fig. 1.
Reference numbers in the figures: 1. an oil-cooled crankcase cover; 2. a pressure relief valve; 3. a heat sink; 4. an oil duct plug B; 5. an oil duct plug A; 6. an oil-cooled pre-positioned oil passage; 7. an oil-cooled rear oil duct; 8. a crankshaft support bore; 9. an oil inlet hole of the crankcase cover; 10. an oil suction path of the oil pump; 11. a filter screen; 12. an oil pump; 13. an oil pump outlet path; 14. an oil outlet hole of the preposed oil duct; 15. a radiator oil inlet path; 16. a radiator oil outlet path; 17. an oil outlet hole of the rear oil duct; 18. a pressure relief reflux path; 19. a pressure relief oil return hole; 20. a separator.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural view of a preferred embodiment of an oil-cooled crankcase cover end cap for a small single cylinder diesel engine according to the present invention; FIG. 2 is a schematic view of the internal structure of the crankcase cover shown in FIG. 1; FIG. 3 is a schematic view of the internal structure of the crankcase cover shown in FIG. 1; fig. 4 is a schematic view of the internal structure of the heat sink shown in fig. 1. The method comprises the following steps: oil-cooled crankcase cover 1, pressure release valve 2 and radiator 3.
In a specific implementation process, as shown in fig. 1 and fig. 2, an oil pump 12 is arranged on the oil-cooled crankcase cover 1, and an oil pump oil suction path 10 and an oil pump oil outlet path 13 are arranged on the oil pump 12;
the oil cooling type crankcase cover 1 is provided with a front oil channel oil outlet hole 14 and a rear oil channel oil outlet hole 17 which are communicated with the pressure release valve 2;
a radiator oil inlet path 15 is installed between an oil inlet of the radiator 3 and the pressure release valve 2, and a radiator oil outlet path 16 is installed between an oil outlet of the radiator 3 and the pressure release valve 2.
The side wall of the oil-cooled crankcase cover 1 is provided with a crankcase cover oil inlet 9 for engine oil to enter, and the inside of the oil-cooled crankcase cover 1 is provided with a crankshaft supporting hole 8 communicated with the crankcase cover oil inlet 9.
An oil duct plug A5 and an oil duct plug B4 are installed inside an oil duct of the oil cooling type crankcase cover 1, an oil cooling type front oil duct 6 is formed between the oil duct plug A5 and the oil duct plug B4, and an oil cooling type rear oil duct 7 is formed between the oil duct plug A5 and a crankshaft supporting hole 8.
A filter screen 11 for filtering engine oil impurities is arranged in the crankcase cover oil inlet 9.
The pipe diameter of the oil-cooled rear oil passage 7 is 6, and the diameter of the oil passage plug B4 is 8.
The pipe diameter of the oil-cooled front oil duct 6 is 9, and the diameter of the oil duct plug A5 is 10.
The oil passage plug B4 and the oil passage plug A5 are fastened and sealed by adopting inner hexagonal outer screw plug threads with the thread diameters corresponding to each other.
The inner side wall of the radiator 3 is fixedly provided with a plurality of groups of partition plates 20 which are distributed at equal intervals, and the plurality of groups of partition plates 20 are distributed in a staggered manner.
It should be noted that: firstly, when the engine oil is over-high in graduation, high-temperature engine oil is sucked from an oil inlet hole 9 of a crankcase cover by an engine oil pump 12, the engine oil firstly passes through a filter screen 11, then impurities in the engine oil are blocked and filtered through the filter screen 11, then the filtered engine oil is pumped into an oil-cooling type preposed oil passage 6 under the drive of the engine oil pump 12 through an oil suction path 10 of the oil pump, then flows out of the diesel engine from an oil outlet hole 14 of the preposed oil passage through a pressure relief valve 2 through an oil outlet path 13 of the oil pump, the engine oil flowing out of the diesel engine enters an engine oil radiator 3 through an oil inlet path 15 of the radiator for heat dissipation, exchanges heat with flowing air in the radiator 3 and is cooled by cold air, and when the engine oil flows in the radiator 3, the engine oil is blocked by a plurality of groups of partition plates 20 in the radiator 3, so that the residence, further, the contact time of engine oil and cold air can be prolonged, the engine oil can be conveniently and thoroughly cooled, then the cooled low-temperature engine oil flows back to the inside of the diesel engine from the oil inlet hole 17 of the rear oil duct through the mutually communicated pressure release valves 2 through the oil outlet path 16 of the radiator, the engine oil reaches the crankshaft supporting hole 8 through the oil-cooled rear oil duct 7, the moving parts such as the crankshaft of the diesel engine 3 are lubricated and gathered in the diesel engine box body, when the diesel engine cooler is started, particularly in severe cold air in winter, the engine oil is easy to thicken and weakened in fluidity, the pressure in the pipeline is increased, when the engine oil pressure exceeds a set value, the pressure release valves 2 start working, the pressure release oil return holes 19 of the oil-cooled crankcase cover 1 are opened, part of the engine oil can directly flow into the box body through the pressure release oil return path 18, the engine oil, thereby can carry out quick heat dissipation cooling to machine oil, prevent that machine oil high temperature from damaging the early layer part when lubricated the part.
The working principle of the oil-cooled crankcase cover end cover of the small single-cylinder diesel engine provided by the invention is as follows: firstly, when the engine oil is over-high in graduation, high-temperature engine oil is sucked from an oil inlet hole 9 of a crankcase cover by an engine oil pump 12, the engine oil firstly passes through a filter screen 11, then impurities in the engine oil are blocked and filtered through the filter screen 11, then the filtered engine oil is pumped into an oil-cooling type preposed oil passage 6 under the drive of the engine oil pump 12 through an oil suction path 10 of the oil pump, then flows out of the diesel engine from an oil outlet hole 14 of the preposed oil passage through a pressure relief valve 2 through an oil outlet path 13 of the oil pump, the engine oil flowing out of the diesel engine enters an engine oil radiator 3 through an oil inlet path 15 of the radiator for heat dissipation, exchanges heat with flowing air in the radiator 3 and is cooled by cold air, and when the engine oil flows in the radiator 3, the engine oil is blocked by a plurality of groups of partition plates 20 in the radiator 3, so that the residence, further, the contact time of engine oil and cold air can be prolonged, the engine oil can be conveniently and thoroughly cooled, then the cooled low-temperature engine oil flows back to the inside of the diesel engine from the oil inlet hole 17 of the rear oil duct through the mutually communicated pressure release valves 2 through the oil outlet path 16 of the radiator, the engine oil reaches the crankshaft supporting hole 8 through the oil-cooled rear oil duct 7, the moving parts such as the crankshaft of the diesel engine 3 are lubricated and gathered in the diesel engine box body, when the diesel engine cooler is started, particularly in severe cold air in winter, the engine oil is easy to thicken and weakened in fluidity, the pressure in the pipeline is increased, when the engine oil pressure exceeds a set value, the pressure release valves 2 start working, the pressure release oil return holes 19 of the oil-cooled crankcase cover 1 are opened, part of the engine oil can directly flow into the box body through the pressure release oil return path 18, the engine oil, thereby can carry out quick heat dissipation cooling to machine oil, prevent that machine oil high temperature from damaging the early layer part when lubricated the part.
The circuits and controls involved in the present invention are prior art and will not be described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a small-size single cylinder diesel engine oil cooling type crankcase cover end cover which characterized in that includes:
the oil cooling type crankcase cover (1), an oil pump (12) is arranged on the oil cooling type crankcase cover (1), and an oil pump oil suction path (10) and an oil pump oil outlet path (13) are arranged on the oil pump (12);
the oil cooling type crankcase cover comprises a pressure release valve (2), wherein a pressure release backflow path (18) is arranged on the pressure release valve (2), a pressure release oil return hole (19) is formed in the side wall of the oil cooling type crankcase cover (1), the pressure release backflow path (18) is communicated with the pressure release oil return hole (19), and a front oil duct oil outlet hole (14) and a rear oil duct oil outlet hole (17) which are communicated with the pressure release valve (2) are formed in the oil cooling type crankcase cover (1);
the radiator oil inlet path (15) is installed between the oil inlet of the radiator (3) and the pressure release valve (2), and the radiator oil outlet path (16) is installed between the oil outlet of the radiator (3) and the pressure release valve (2).
2. The small single cylinder diesel engine oil-cooled crankcase cover end cover according to claim 1, wherein a crankcase cover oil inlet hole (9) for engine oil to enter is formed in a side wall of the oil-cooled crankcase cover (1), and a crankshaft supporting hole (8) communicated with the crankcase cover oil inlet hole (9) is formed in the oil-cooled crankcase cover (1).
3. The small single cylinder diesel engine oil-cooled crankcase cover end cover according to claim 2, characterized in that an oil passage plug A (5) and an oil passage plug B (4) are installed inside an oil passage of the oil-cooled crankcase cover (1), an oil-cooled front oil passage (6) is formed between the oil passage plug A (5) and the oil passage plug B (4), and an oil-cooled rear oil passage (7) is formed between the oil passage plug A (5) and a crankshaft supporting hole (8).
4. The small single cylinder diesel engine oil-cooled crankcase cover end cover according to claim 2, characterized in that a filter screen (11) for filtering engine oil impurities is installed inside the crankcase cover oil inlet hole (9).
5. The small single cylinder diesel engine oil-cooled crankcase cover end cover according to claim 3, wherein the oil-cooled rear oil channel (7) has a pipe diameter of 6, and the oil channel plug B (4) has a diameter of 8.
6. The small single cylinder diesel engine oil-cooled crankcase cover end cover according to claim 3, wherein the oil-cooled preposed oil passage (6) is 9 in pipe diameter, and the oil passage plug A (5) is 10 in diameter.
7. The small single cylinder diesel engine oil-cooled crankcase cover end cover according to claim 1, wherein the oil passage plug B (4) and the oil passage plug A (5) are tightly sealed by adopting inner hexagonal outer plug threads with thread diameters corresponding to each other.
8. The small single cylinder diesel oil-cooled crankcase cover end cover according to claim 1, wherein a plurality of groups of partition plates (20) are fixedly arranged on the inner side wall of the radiator (3) and are distributed at equal intervals, and the plurality of groups of partition plates (20) are mutually staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110014999.5A CN112901366B (en) | 2021-01-06 | 2021-01-06 | Small-sized single-cylinder diesel engine oil cold-type crankcase cover end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110014999.5A CN112901366B (en) | 2021-01-06 | 2021-01-06 | Small-sized single-cylinder diesel engine oil cold-type crankcase cover end cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112901366A true CN112901366A (en) | 2021-06-04 |
| CN112901366B CN112901366B (en) | 2024-03-22 |
Family
ID=76112200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110014999.5A Active CN112901366B (en) | 2021-01-06 | 2021-01-06 | Small-sized single-cylinder diesel engine oil cold-type crankcase cover end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112901366B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020003064A1 (en) * | 2000-05-11 | 2002-01-10 | Katsuhiko Ito | Lubricating system for internal combustion engine |
| EP1785600A1 (en) * | 2005-10-11 | 2007-05-16 | Honda Motor Co., Ltd | Oilng device for engine |
| US20080078619A1 (en) * | 2006-08-21 | 2008-04-03 | Honda Motor Co., Ltd. | Lubricating device of internal combustion engine |
| CN203948144U (en) * | 2014-06-24 | 2014-11-19 | 力帆实业(集团)股份有限公司 | Motorcycle engine oil injection type oil lubricating cooling recirculation system |
| CN104500258A (en) * | 2014-12-12 | 2015-04-08 | 隆鑫通用动力股份有限公司 | Crankcase cover with pressure-relievable engine oil supply assembly |
| CN105888876A (en) * | 2016-06-14 | 2016-08-24 | 重庆隆鑫发动机有限公司 | Crankcase cover and clutch side surface cooling and lubricating structure based on crankcase cover |
| CN206092095U (en) * | 2016-09-14 | 2017-04-12 | 苏州市双马机电有限公司 | General gasoline engine pressure lubrication and cooling system and gasoline engine that has this system |
| CN214741717U (en) * | 2021-01-06 | 2021-11-16 | 江苏杰特动力科技有限公司 | Small-size single cylinder diesel engine oil cooling type crankcase end cover |
-
2021
- 2021-01-06 CN CN202110014999.5A patent/CN112901366B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020003064A1 (en) * | 2000-05-11 | 2002-01-10 | Katsuhiko Ito | Lubricating system for internal combustion engine |
| EP1785600A1 (en) * | 2005-10-11 | 2007-05-16 | Honda Motor Co., Ltd | Oilng device for engine |
| US20080078619A1 (en) * | 2006-08-21 | 2008-04-03 | Honda Motor Co., Ltd. | Lubricating device of internal combustion engine |
| CN203948144U (en) * | 2014-06-24 | 2014-11-19 | 力帆实业(集团)股份有限公司 | Motorcycle engine oil injection type oil lubricating cooling recirculation system |
| CN104500258A (en) * | 2014-12-12 | 2015-04-08 | 隆鑫通用动力股份有限公司 | Crankcase cover with pressure-relievable engine oil supply assembly |
| CN105888876A (en) * | 2016-06-14 | 2016-08-24 | 重庆隆鑫发动机有限公司 | Crankcase cover and clutch side surface cooling and lubricating structure based on crankcase cover |
| CN206092095U (en) * | 2016-09-14 | 2017-04-12 | 苏州市双马机电有限公司 | General gasoline engine pressure lubrication and cooling system and gasoline engine that has this system |
| CN214741717U (en) * | 2021-01-06 | 2021-11-16 | 江苏杰特动力科技有限公司 | Small-size single cylinder diesel engine oil cooling type crankcase end cover |
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| Publication number | Publication date |
|---|---|
| CN112901366B (en) | 2024-03-22 |
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