CN111535899A - Labyrinth type lubricating oil three-stage filtering and purifying system of engine and engine - Google Patents
Labyrinth type lubricating oil three-stage filtering and purifying system of engine and engine Download PDFInfo
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- CN111535899A CN111535899A CN202010383484.8A CN202010383484A CN111535899A CN 111535899 A CN111535899 A CN 111535899A CN 202010383484 A CN202010383484 A CN 202010383484A CN 111535899 A CN111535899 A CN 111535899A
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- 238000001914 filtration Methods 0.000 title claims abstract description 63
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 291
- 239000010705 motor oil Substances 0.000 claims abstract description 237
- 238000000746 purification Methods 0.000 claims abstract description 130
- 239000012535 impurity Substances 0.000 claims description 43
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims description 20
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims 8
- 230000009286 beneficial effect Effects 0.000 abstract description 20
- 230000000694 effects Effects 0.000 description 15
- 230000001050 lubricating effect Effects 0.000 description 12
- 230000008901 benefit Effects 0.000 description 11
- 238000005461 lubrication Methods 0.000 description 11
- 230000002349 favourable effect Effects 0.000 description 8
- 239000010721 machine oil Substances 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
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Classifications
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- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
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- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a labyrinth type three-stage filtration and purification system for lubricating oil of an engine and the engine, comprising an oil sump formed by matching the bottoms of a left crankcase body and a right crankcase body; the oil pan is provided with an oil inlet and an oil outlet, and a labyrinth type purification structure is arranged between the oil inlet and the oil outlet of the oil pan; an engine oil filter screen for performing coarse filtration on engine oil entering the labyrinth purification structure and an engine oil fine filter II for performing fine filtration are arranged in the labyrinth purification structure; the engine oil accumulated at the oil pan sinks into the labyrinth purification structure and is pumped out by the engine oil pump, and part of the engine oil is filtered by the engine oil fine filter I to lubricate corresponding parts in the engine; the invention combines the labyrinth purification structure and the design of one coarse filtration and two fine filtration, is beneficial to ensuring that the engine can effectively purify the engine oil under the condition of high load so as to ensure that the engine can be fully and effectively lubricated, is beneficial to solving the problems of locking of a crank connecting rod, cylinder pulling, valve locking and the like, and improves the service life of the engine.
Description
Technical Field
The invention relates to a three-stage filtration and purification system and an engine, in particular to a labyrinth type three-stage filtration and purification system for lubricating oil of an engine and the engine.
Background
When the vertical engine in the existing market is applied to a freight tricycle, the engine is in a heavy load state for a long time, such as the load reaches 2 tons, the speed of the tricycle is as low as below 20, the rotating speed of the engine is higher than 8000 and the like, so that the load of the engine is overlarge, parts such as a gear, a clutch, a crank connecting rod, a box body and the like are easily abraded, and the cleanliness of engine oil is poor.
And the engine oil filtration of current engine has only set up centrifugal secondary filter in bent axle department, and all the other oil ducts are the colating, and the oil sump lacks impurity interception structure for engine oil impurity can directly get into the main oil duct, makes to engine oil purifying effect unobvious, and very easily appears the oil duct and blocks up the problem, leads to lubricated badly, makes the crank connecting rod locking of easily appearing, draws jar, the valve card to die the scheduling problem.
Based on the problems, the invention provides a labyrinth type lubricating oil three-stage filtration and purification system for an engine and the engine. This tertiary filtration purification system of engine labyrinth lubricating oil and engine, oil pan adopt labyrinth purification structure, combine a colating and two essence to strain the design, do benefit to and guarantee that the engine also can effectively purify machine oil so that the engine of messenger can obtain abundant effective lubrication under the high load condition, do benefit to and solve crank connecting rod locking, draw the jar, the valve card is dead scheduling problem, improvement engine life.
Disclosure of Invention
In view of the above, the invention provides a labyrinth type three-stage filtration and purification system for lubricating oil of an engine and the engine, wherein an oil pan adopts a labyrinth type purification structure, and is combined with a rough filtration and double fine filtration design, so that the engine can be ensured to be capable of effectively purifying engine oil under the condition of high load, the engine can be sufficiently and effectively lubricated, the problems of locking of a crank connecting rod, cylinder pulling, valve locking and the like can be solved, and the service life of the engine is prolonged.
The invention discloses a labyrinth type three-stage filtration and purification system for lubricating oil of an engine, which comprises an oil sump formed by matching the bottoms of a left crankcase body and a right crankcase body; the oil pan is provided with an oil inlet and an oil outlet, and a labyrinth type purification structure is arranged between the oil inlet and the oil outlet of the oil pan; an engine oil filter screen for performing coarse filtration on engine oil entering the labyrinth purification structure and an engine oil fine filter II for performing fine filtration are arranged in the labyrinth purification structure; the engine oil accumulated at the oil pan sinks into the labyrinth purification structure and is pumped out by the engine oil pump, and part of the engine oil is filtered by the engine oil fine filter I to lubricate corresponding parts in the engine; the engine is a vertical engine, the oil pan is correspondingly formed at the bottom of the matching part of the left crankcase body and the right crankcase body, the labyrinth purification structure is positioned between the oil inlet and the oil outlet of the oil pan and below the oil accumulation surface of the oil pan, the engine oil (namely, lubricating oil, which is not described below) accumulated at the oil pan is sunk through the oil inlet of the labyrinth purification structure, is subjected to impurity removal through the labyrinth purification structure, an engine oil filter screen and an engine oil fine filter II arranged in the oil pan, enters a main oil duct through the oil outlet, namely an engine oil inlet duct, and is pumped out through the engine oil pump, one part of the pumped-out engine oil enters an oil duct of the right crankcase cover through the engine oil outlet duct and then enters the engine oil fine filter I for fine filtration to lubricate a connecting rod big end of a connecting rod part of an engine crank connecting rod part, and a cylinder needle roller, and the other part of the pumped-, Lubricating the main shaft, the auxiliary shaft and other parts (and one part of the engine oil can independently cool the piston and carry a lubricating piston cylinder); the labyrinth purification structure can be provided with a stepped oil pool structure, and the labyrinth purification structure (such as the labyrinth ribs are arranged in the labyrinth purification structure I, the oil pool ribs are arranged in the labyrinth purification structure II to intercept impurities in engine oil) and the arrangement of an engine oil filter screen and an engine oil fine filter II in the labyrinth purification structure are favorable for intercepting the impurities of the engine oil entering the labyrinth purification structure, the purification of the engine oil is favorable, the engine oil can be effectively purified under the condition of high load, the problem of oil duct blockage caused by the fact that more impurities directly enter an oil inlet channel of the engine oil pump is avoided, the problems of poor lubrication, locking of a crank connecting rod, cylinder pulling, valve blocking and the like are avoided, and the service life of the engine is prolonged; the engine oil fine filter II is preferably arranged at a position close to an oil outlet of the labyrinth purification structure, so that the engine oil is ensured to be subjected to fine filtration before entering a main oil duct, namely an oil inlet duct of the engine oil pump; the engine oil fine filter I is arranged on the right crankcase side, belongs to the prior art and is not described herein again; the selection of the engine oil fine filter I and the engine oil fine filter II is prior art, and is not described herein.
Further, the labyrinth purification structure comprises a labyrinth purification structure I corresponding to the left crankcase body side and a labyrinth purification structure II corresponding to the right crankcase body side; the labyrinth purification structure I is provided with an oil inlet I, a stepped oil pool I and an oil outlet I, and the labyrinth purification structure II is provided with an oil inlet II communicated with the oil outlet I, a stepped oil pool II and an oil outlet II; the oil outlet II is communicated with an oil inlet channel of the oil pump; the oil inlet of the labyrinth purification structure is an oil inlet I, and the oil outlet of the labyrinth purification structure is an oil outlet II; the engine oil accumulated at the oil pan is sunk into a stepped oil pool I of a labyrinth purification structure I through an oil inlet I of the labyrinth purification structure I, and enters a stepped oil pool II of the labyrinth purification structure II through an oil outlet I (namely an oil inlet II), so that the engine oil is subjected to coarse filtration of the stepped oil pool I and the stepped oil pool II (for example, the labyrinth ribs are arranged in the labyrinth purification structure I, the oil pool ribs are arranged in the labyrinth purification structure II to intercept impurities in the engine oil), coarse filtration of an engine oil filter screen and fine filtration of an engine oil fine filter II, then enters a main oil duct through the oil outlet II, namely an engine oil inlet duct of the engine oil pump, and finally is pumped out by the engine oil pump; do benefit to the effective filtration to getting into among the labyrinth purification structure machine oil, do benefit to effectively to detach the impurity in the machine oil, guarantee that the engine also can effectively purify machine oil under the high load condition, and the structure sets up rationally.
Further, the engine oil fine filter II is arranged at a position, close to the oil outlet II, of the stepped oil pool II; before the engine oil fine filter II is used for carrying out fine filtration on the engine oil, the engine oil can be firstly subjected to coarse filtration through the labyrinth purification structure, larger granular impurities in the engine oil are intercepted, and the filter effect and the service life of the engine oil fine filter II are favorably improved; meanwhile, the method is beneficial to ensuring that the engine oil before entering the main oil duct, namely before entering the oil inlet channel of the engine oil pump is subjected to fine filtration, and comprises the steps of ensuring that the engine oil accumulated in the oil pan can be subjected to fine filtration when the engine is greatly inclined forwards so that the engine oil enters the stepped oil pool II through the auxiliary oil inlet channel, avoiding the problem of oil duct blockage caused by the fact that more impurities directly enter the oil inlet channel of the engine oil pump, avoiding the problems of poor lubrication, locking of a crank connecting rod, cylinder pulling, valve clamping and the like, and being beneficial to prolonging the service life of the engine; the end of the engine oil fine filter II, which is far away from the oil outlet II, is provided with an elastic element such as a spring, and the end close to the oil outlet II is sealed by a sealing ring, so that the engine oil fine filter II is favorable for stabilizing and sealing installation, and the engine oil which is not subjected to fine filtering by the engine oil fine filter II is favorably prevented from directly entering a main oil duct (namely an oil pump oil inlet duct).
Further, the engine oil filter screen is arranged on the side, close to the oil outlet I, of the stepped oil pool I; the engine oil impurity intercepted by the stepped oil pool I and the engine oil filter screen in the labyrinth purification structure I falls to the bottom of the stepped oil pool I under the action of gravity, so that smoothness of an oil duct is guaranteed, and timely removal of the engine oil impurity can be achieved by opening the engine oil filter screen cover arranged at the corresponding position, and the purification effect of the engine oil of the engine is guaranteed; the engine oil filter screen cover is correspondingly arranged at the arrangement position of the engine oil filter screen, so that the engine oil filter screen cover is favorable for dismounting the engine oil filter screen and removing impurities of filtering, and the engine oil can be effectively purified under the high-load condition.
Furthermore, an oil pool rib for intercepting engine oil impurities is arranged in the step oil pool II, and a plurality of oil storage cavities are formed; the arrangement of the oil pool ribs is beneficial to intercepting impurities of the engine oil entering the stepped oil pool II, and the intercepted impurities can be accumulated in the oil storage cavity under the action of gravity, so that the blockage of an oil duct is avoided, and the impurity removal and purification effects of the engine oil are ensured; a convex structure which extends towards the oil storage cavity side of the labyrinth purification structure II and enables an oil outlet channel at the oil outlet II to contract is arranged at the oil outlet II; the oil pump oil inlet passage is beneficial to further filtering and purifying the engine oil entering the engine oil pump oil inlet passage, and the impurities entering the main oil passage, namely the engine oil pump oil inlet passage, are reduced, so that the impurity removal and purification effects of the lubricating oil are further improved.
Further, an auxiliary oil inlet channel for ensuring effective oil inlet in the stepped oil pool II when the engine is greatly inclined forwards is also arranged at the stepped oil pool II; an oil pool rib for intercepting engine oil impurities is arranged at the auxiliary oil inlet channel to form an auxiliary oil cavity; do benefit to and avoid the engine to lean forward by a wide margin and make the oil that gathers in the oil pan directly get into labyrinth purification structure II through the setting of supplementary oil feed way when entering into labyrinth purification structure by oil inlet I, do benefit to the oil that gathers in making the oil pan to the edulcoration under the interception effect of oil pool muscle, do benefit to the lubrication of corresponding part in the assurance still can be effectual to the engine when the engine leans forward by a wide margin.
Further, the top of the labyrinth purification structure II corresponding to the labyrinth purification structure II is provided with an air elimination hole for avoiding air pumping of the engine oil pump; the lubricating oil pump is favorable for avoiding the problem that the engine oil pump is empty due to the fact that air entering the oil duct cannot be removed in time, and is favorable for guaranteeing the service life of the engine oil pump and the lubricating effect in an engine.
Further, after the engine oil entering the oil inlet channel of the engine oil pump is pumped out by the engine oil pump, a part of the engine oil enters the engine oil fine filter I through the oil channel of the right crankcase cover and lubricates corresponding parts of the engine after fine filtration, and the other part of the engine oil lubricates corresponding parts in the engine through the oil channel of the right box body; the lubricating device is beneficial to engine oil filtered by a labyrinth purification structure and an engine oil fine filter II arranged in the labyrinth purification structure, one part of the engine oil is further subjected to fine filtration by the engine oil fine filter I to form lubrication on a large-end needle roller of a connecting rod of an engine crank connecting rod part, and the other part of the engine oil enters a right box oil passage through an engine oil pump oil outlet passage to directly form lubrication on parts such as a cylinder head, a main shaft and a counter shaft of the engine (and one part of the engine oil can independently cool a piston and smoothly lubricate a piston cylinder body); the lubricating oil purification device is beneficial to ensuring the engine oil purification effect of the large-head roller pin of the connecting rod of the crank connecting rod component of the lubricating engine and meeting the requirements of fully lubricating the cylinder head, the main shaft, the auxiliary shaft and other components of the engine and cooling the piston.
Furthermore, a guide plate for guiding engine oil reflowing from corresponding parts in the engine to an oil pan is arranged in the crankcase body; the arrangement of the guide plate is favorable for guiding the engine oil which lubricates parts such as the cylinder head part, the cylinder body part, the piston cylinder body, the crank connecting rod part, the main and auxiliary shaft parts, the speed change mechanism part, the gear shifting arm part and the like to the oil pan through the reflux of the guide plate; the other part of the engine oil which flows back to the oil pan is the engine oil which flows back through the clutch assembly, the foot starting shaft, the engine oil fine filter I and the like, so that the engine oil which lubricates corresponding parts in the engine can be filtered through the labyrinth purification structure and the engine oil filter screen and the engine oil fine filter II which are arranged in the labyrinth purification structure, and then the engine oil pump pumps out the engine oil to realize continuous lubrication of the corresponding parts in the engine, thereby being beneficial to ensuring the purification effect of the engine oil, avoiding the problems of locking of a crank connecting rod, cylinder pulling, blocking of an air valve and the like, and prolonging the service life of the engine.
The invention also provides an engine, which is provided with the labyrinth type three-stage filtration and purification system for lubricating oil.
The invention has the beneficial effects that: in the labyrinth type three-stage filtration and purification system for the lubricating oil of the engine and the engine, the engine oil accumulated at the oil bottom shell sinks into the labyrinth type purification structure, then is subjected to impurity removal through the labyrinth type purification structure and the engine oil filter screen and the engine oil fine filter II arranged in the labyrinth type purification structure, and then enters the main oil passage, namely the oil inlet passage of the engine oil pump, the engine oil is pumped out by the engine oil pump to be further finely filtered to lubricate corresponding parts of the engine (part of the engine oil is directly lubricated by the corresponding parts of the engine), so that impurities entering the labyrinth type purification structure can be effectively removed, the engine oil can be effectively purified under the condition of high load, the problem that more impurities directly enter an oil inlet channel of the engine oil pump to block the oil channel is solved, the problems that poor lubrication is caused, a crank connecting rod is locked, a cylinder is pulled, an air valve is clamped and the like are solved, and the service life of the engine is prolonged.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the structure B-B of FIG. 1.
FIG. 4 is a schematic view of the structure A-A of FIG. 2;
Detailed Description
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural view of the present invention; FIG. 4 is a schematic view of the structure A-A of FIG. 2; FIG. 3 is a schematic view of the structure B-B of FIG. 1; as shown in the figure: the labyrinth type three-stage filtration and purification system for lubricating oil of the engine comprises an oil sump formed by matching the bottoms of a left crankcase body 4 and a right crankcase body 15; the oil pan is provided with an oil inlet and an oil outlet, and a labyrinth type purification structure is arranged between the oil inlet and the oil outlet of the oil pan; an engine oil filter screen 18 for performing coarse filtration on engine oil entering the labyrinth purification structure and an engine oil fine filter II10 for performing fine filtration are arranged in the labyrinth purification structure; the engine oil accumulated at the oil pan sinks into the labyrinth purification structure and is pumped out by the engine oil pump 12, and part of the engine oil is filtered by the engine oil fine filter I17 to lubricate corresponding parts in the engine; the engine is a vertical engine, an oil pan is correspondingly formed at the bottom of the matching part of the left crankcase body 4 and the right crankcase body 15, and the labyrinth purification structure is positioned between an oil inlet and an oil outlet of the oil pan and below an oil accumulation surface of the oil pan; the engine oil a (i.e. lubricating oil, which will not be described further below) accumulated at the oil pan sinks through an oil inlet of the labyrinth purification structure, is purified through the labyrinth purification structure and an engine oil filter 18 and an engine oil fine filter II10 arranged in the labyrinth purification structure, enters a main oil passage, i.e. an engine oil inlet passage f through an oil outlet of the labyrinth purification structure, is pumped out through the engine oil pump 12, a part of the pumped-out engine oil enters a right crankcase cover oil passage j through an engine oil outlet passage y, and then enters an engine oil fine filter I17 for fine filtering to lubricate a large connecting rod head roller pin of an engine crank connecting rod component 3, and the other part of the pumped-out engine oil enters a right box body oil passage h through an engine oil outlet passage y to lubricate components of the engine such as a cylinder head 1, a main and auxiliary shaft 5 and the like (one strand of the part of the engine oil; the labyrinth purification structure can have a stepped oil pool structure, and the labyrinth purification structure (such as the labyrinth purification structure I is provided with the labyrinth rib E, the labyrinth purification structure II is provided with the oil pool rib F for intercepting impurities in engine oil) and the arrangement of the engine oil filter screen 18 and the engine oil fine filter II10 in the labyrinth purification structure are beneficial to intercepting the impurities of the engine oil entering the labyrinth purification structure, are beneficial to purifying the engine oil, are beneficial to effectively purifying the engine oil under the condition of high load of an engine, avoid the problem of oil duct blockage caused by the fact that more impurities directly enter an oil inlet channel of the engine oil pump, avoid poor lubrication, and avoid the problems of locking of a crank connecting rod, cylinder pulling, valve clamping and the like, and are beneficial to prolonging the service life of the engine; the engine oil fine filter II10 is preferably arranged at a position close to the oil outlet of the labyrinth purification structure, so that the engine oil is ensured to be subjected to fine filtration before entering a main oil gallery, namely an oil inlet passage f of the engine oil pump; the engine oil fine filter I17 is arranged on the right crankcase body 15 side, belongs to the prior art and is not described herein again; the engine oil fine filter I17 and the engine oil fine filter II10 are centrifugal fine filters, and the selection of the engine oil fine filter I17 and the engine oil fine filter II10 belongs to the prior art and is not described again; the present embodiment gives the flow direction of the lubricating oil by means of arrows.
In the present embodiment, the labyrinth purification structure includes a labyrinth purification structure I corresponding to the left crankcase body 4 side and a labyrinth purification structure II corresponding to the right crankcase body 15 side; the labyrinth purification structure I is provided with an oil inlet Ib, a stepped oil pool Ic and an oil outlet Id, and the labyrinth purification structure II is provided with an oil inlet II, a stepped oil pool IIe and an oil outlet IIi which are communicated with the oil outlet Id; the oil outlet IIi is communicated with an oil inlet channel f of the oil pump; an oil inlet of the labyrinth purification structure is an oil inlet Ib, and an oil outlet of the labyrinth purification structure is an oil outlet IIi; the engine oil accumulated at the oil pan is sunk into a stepped oil pool Ic of a labyrinth purification structure I through an oil inlet Ib of the labyrinth purification structure I, and enters a stepped oil pool IIe of the labyrinth purification structure II through an oil outlet Id (namely an oil inlet II), so that the engine oil is subjected to coarse filtration of the stepped oil pool Ic and the stepped oil pool IIe (for example, impurities in the engine oil are intercepted by arranging a labyrinth rib E in the labyrinth purification structure I and arranging an oil pool rib F in the labyrinth purification structure II), coarse filtration of an engine oil filter screen 18 and fine filtration of an engine oil fine filter II10, then enters a main oil duct (namely an engine oil pump oil inlet duct F) through the oil outlet IIi, and finally is pumped out through an engine oil pump 12; do benefit to the filtration to getting into among the labyrinth purification structure machine oil to effectively detach the impurity in the machine oil, guarantee that the engine also can effectively purify machine oil under the high load condition, and the structure sets up rationally.
In this embodiment, the engine oil fine filter II10 is disposed at a position close to the oil outlet IIi of the stepped oil pool IIe; before the engine oil is finely filtered by the engine oil fine filter II10, the engine oil can be coarsely filtered by the labyrinth purification structure, so that larger granular impurities in the engine oil can be intercepted, the filtering effect can be improved, and the service life of the engine oil fine filter II10 can be prolonged; meanwhile, the fine filtration of the engine oil before entering the main oil duct, namely before entering the oil inlet duct f of the engine oil pump, is facilitated, the fine filtration of the engine oil before entering the main oil duct f can be ensured when the engine is greatly inclined forwards so that the engine oil accumulated in the oil pan enters the stepped oil pool IIe through the auxiliary oil inlet duct k, the oil duct blockage problem caused by the fact that more impurities directly enter the oil inlet duct f of the engine oil pump is avoided, the problems of poor lubrication, locking of a crank connecting rod, cylinder pulling, clamping of an air valve and the like are avoided, and the service life of the engine is prolonged; one end of the fine engine oil filter II10, which is far away from the oil outlet IIi, is provided with an elastic element 9 such as a spring, and one end of the fine engine oil filter II10, which is close to the oil outlet IIi, is sealed by a sealing ring 11, so that the stable and sealed installation of the fine engine oil filter II10 is facilitated, and the situation that engine oil which is not finely filtered by the fine engine oil filter II10 directly enters a main oil duct (namely an oil inlet duct f of an.
In this embodiment, the engine oil filter 18 is disposed on the side of the stepped oil pool Ic close to the oil outlet Id; the engine oil impurities intercepted by the stepped oil pool Ic and the engine oil filter screen 18 in the labyrinth purification structure I fall to the bottom of the stepped oil pool Ic under the action of gravity, so that smoothness of an oil duct is guaranteed, and timely removal of the engine oil impurities can be achieved by opening the engine oil filter screen cover 8 arranged at the corresponding position, and the purification effect of the engine oil is guaranteed; the engine oil filter screen 18 is correspondingly provided with an engine oil filter screen cover 18, which is beneficial to the disassembly and assembly of the engine oil filter screen 18 and the removal of filtered impurities, and is beneficial to the effective purification of engine oil under the condition of high load of an engine.
In this embodiment, an oil pool rib F for intercepting engine oil impurities is provided in the stepped oil pool IIe, and a plurality of oil storage chambers are formed; the arrangement of the oil pool rib F is beneficial to intercepting impurities of the engine oil entering the stepped oil pool IIe, and the intercepted impurities can be accumulated in the oil storage cavity under the action of gravity, so that the blockage of an oil duct is avoided, and the impurity removal and purification effect of the engine oil is ensured; a convex structure 20 which extends towards the oil storage cavity side of the labyrinth purification structure II and enables an oil outlet channel at the oil outlet IIi to contract is arranged at the oil outlet IIi (namely the oil outlet of the oil pan); corresponding to fig. 4, two sides of the oil outlet IIi (where the two sides are only two sides corresponding to the oil storage cavity in the figure) are both provided with tongues extending towards the oil storage cavity side, so that an oil outlet channel with a reduced cross section relative to the oil storage cavity is formed at the oil outlet IIi, further filtration and impurity removal of engine oil entering the oil inlet channel of the engine oil pump are facilitated, impurities entering the main oil channel, namely the oil inlet channel of the engine oil pump are reduced, and the impurity removal and purification effects of the lubricating oil are further improved.
In the embodiment, an auxiliary oil inlet channel k for ensuring effective oil inlet in the stepped oil pool IIe when the engine is greatly inclined forwards is further arranged at the stepped oil pool IIe; an oil pool rib G for intercepting engine oil impurities is arranged at the position of the auxiliary oil inlet channel k, and an auxiliary oil cavity m is formed; do benefit to and avoid the engine to lean forward by a wide margin and make the oil that gathers in the oil pan directly get into labyrinth purification structure II through the setting of supplementary oil feed way k when entering into labyrinth purification structure by oil inlet Ib that the engine can't be smooth, do benefit to the oil that makes gathering in the oil pan through supplementary oil feed way k to the edulcoration under the interception effect of oil pool muscle G does benefit to the assurance and still can effectually lubricate corresponding part in the engine when the engine leans forward by a wide margin.
In this embodiment, the top of the labyrinth purification structure II corresponding to the oil pump is provided with an air vent n for preventing the oil pump from pumping air; the problem that the oil pump 12 is empty due to the fact that air entering the oil duct cannot be discharged in time is avoided, the service life of the oil pump 12 is guaranteed, and the lubricating effect in an engine is guaranteed.
In the embodiment, after the engine oil entering the oil inlet channel f of the engine oil pump is pumped out by the engine oil pump 12, a part of the engine oil enters the engine oil fine filter I17 through the oil passage j of the right crankcase cover and lubricates corresponding parts of the engine after fine filtration, and the other part of the engine oil lubricates corresponding parts in the engine through the oil passage h of the right crankcase body; the lubricating device is beneficial to lubricating the connecting rod large-head roller pin of the engine crank connecting rod component 3 after the engine oil is further finely filtered by the engine oil fine filter I17 and the engine oil filtered by the engine oil filter screen 18 and the engine oil fine filter II10 arranged in the labyrinth purifying structure, and the other part of the lubricating device enters the right box oil passage h through the engine oil pump oil outlet passage y to directly lubricate the components of the engine, such as the cylinder head 1, the main and auxiliary shafts 5 and the like (and one of the engine oil in the part can independently cool the piston and smoothly lubricate the piston cylinder body); the lubricating oil purification device is beneficial to ensuring the engine oil purification effect of the large-end roller pin of the connecting rod of the crank connecting rod component 3 of the lubricating engine and meeting the requirements of fully lubricating the cylinder head 1, the main and auxiliary shafts 5 and other components of the engine and cooling the piston.
In this embodiment, a baffle plate D for guiding the engine oil returned from the corresponding component in the engine to the oil pan is provided in the crankcase body (formed by the left crankcase body 4 and the right crankcase body 15 in cooperation); the arrangement of the guide plate D is favorable for guiding the engine oil which lubricates the parts such as the cylinder head part 1, the cylinder body part 2, the piston cylinder body (not marked in the figure), the crank connecting rod part 3, the main and auxiliary shaft parts 5, the speed change mechanism assembly 6, the gear shift arm part 7 and the like to the oil pan through the return flow of the guide plate D; the other part of the engine oil which flows back to the oil pan is the engine oil which flows back through the clutch assembly 14, the foot starting shaft 16, the engine oil fine filter I17 and the like, so that the engine oil which lubricates corresponding parts in the engine can be filtered through the labyrinth purification structure and the engine oil filter screen 18 and the engine oil fine filter II10 which are arranged in the labyrinth purification structure, and then the engine oil is pumped out by the engine oil pump 12 to realize continuous lubrication of the corresponding parts in the engine, thereby being beneficial to ensuring the purification effect of the engine oil, avoiding the problems of locking of a crank connecting rod, cylinder pulling, valve blocking and the like, and prolonging the service life of the engine.
The embodiment also provides an engine, wherein the engine is provided with the labyrinth type three-stage filtration and purification system for lubricating oil.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a tertiary filtration clean system of engine labyrinth lubricating oil which characterized in that: the oil sump is formed by matching the bottoms of the left crankcase body and the right crankcase body; the oil pan is provided with an oil inlet and an oil outlet, and a labyrinth type purification structure is arranged between the oil inlet and the oil outlet of the oil pan; an engine oil filter screen for performing coarse filtration on engine oil entering the labyrinth purification structure and an engine oil fine filter II for performing fine filtration are arranged in the labyrinth purification structure; the engine oil accumulated at the oil pan sinks into the labyrinth purification structure and is pumped out by the engine oil pump, and part of the engine oil is filtered by the engine oil fine filter I to lubricate corresponding parts in the engine.
2. The labyrinth lubricant three-stage filtration and purification system of claim 1, wherein: the labyrinth type purification structure comprises a labyrinth type purification structure I corresponding to the side of the left crankcase body and a labyrinth type purification structure II corresponding to the side of the right crankcase body; the labyrinth purification structure I is provided with an oil inlet I, a stepped oil pool I and an oil outlet I, and the labyrinth purification structure II is provided with an oil inlet II communicated with the oil outlet I, a stepped oil pool II and an oil outlet II; the oil outlet II is communicated with an oil inlet channel of the oil pump.
3. The labyrinth lubricant three-stage filtration and purification system according to claim 2, wherein: and the engine oil fine filter II is arranged at the position, close to the oil outlet II, of the stepped oil pool II.
4. The labyrinth lubricant three-stage filtration and purification system according to claim 2, wherein: the engine oil filter screen is arranged on the side, close to the oil outlet I, of the stepped oil pool I.
5. The labyrinth lubricant three-stage filtration and purification system according to claim 2, wherein: an oil pool rib for intercepting engine oil impurities is arranged in the stepped oil pool II, and a plurality of oil storage cavities are formed; and the oil outlet II is provided with a convex structure which extends towards the side of the oil storage cavity and enables an oil outlet channel at the oil outlet II to contract.
6. The labyrinth lubricant three-stage filtration and purification system according to claim 2, wherein: an auxiliary oil inlet channel for ensuring effective oil inlet in the stepped oil pool II when the engine is greatly inclined forwards is further arranged at the stepped oil pool II; and an oil pool rib for intercepting engine oil impurities is arranged at the auxiliary oil inlet channel and forms an auxiliary oil cavity.
7. The labyrinth lubricant three-stage filtration and purification system according to claim 2, wherein: and the top of the corresponding part of the labyrinth type purification structure II is provided with an air-elimination hole for avoiding the air suction of the engine oil pump.
8. The labyrinth lubricant three-stage filtration and purification system of claim 1, wherein: after the engine oil entering the oil inlet channel of the engine oil pump is pumped out by the engine oil pump, a part of the engine oil enters the engine oil fine filter I through the oil channel of the right crankcase cover and lubricates corresponding parts of the engine after fine filtration, and the other part of the engine oil lubricates corresponding parts in the engine through the oil channel of the right box body.
9. The labyrinth lubricant three-stage filtration and purification system of claim 1, wherein: and a guide plate for guiding engine oil reflowing from corresponding parts in the engine to an oil pan is arranged in the crankcase body.
10. An engine, characterized in that: the engine is provided with a labyrinth lubricating oil three-stage filtration purification system as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010383484.8A CN111535899A (en) | 2020-05-08 | 2020-05-08 | Labyrinth type lubricating oil three-stage filtering and purifying system of engine and engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010383484.8A CN111535899A (en) | 2020-05-08 | 2020-05-08 | Labyrinth type lubricating oil three-stage filtering and purifying system of engine and engine |
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| CN111535899A true CN111535899A (en) | 2020-08-14 |
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| CN202010383484.8A Pending CN111535899A (en) | 2020-05-08 | 2020-05-08 | Labyrinth type lubricating oil three-stage filtering and purifying system of engine and engine |
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Application publication date: 20200814 |