CN102418575B - Handheld four-travel engine lubrication system - Google Patents
Handheld four-travel engine lubrication system Download PDFInfo
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- CN102418575B CN102418575B CN 201110385313 CN201110385313A CN102418575B CN 102418575 B CN102418575 B CN 102418575B CN 201110385313 CN201110385313 CN 201110385313 CN 201110385313 A CN201110385313 A CN 201110385313A CN 102418575 B CN102418575 B CN 102418575B
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Abstract
The invention discloses a handheld four-travel engine lubrication system. The handheld four-travel engine lubrication system comprises an oil storage chamber (1) formed by a bottom case (32) and a lower tank (31), a crank shaft chamber (2) formed by the lower tank (31) and an upper tank (33), a valve chamber (3) which is formed by the upper tank (33) and a cylinder head cover (36), a cam chamber (37), and a tappet rod chamber (30); first and second oil inlet passages (12, 13) which are communicated with the oil storage chamber (1) and the crank shaft chamber (2) are correspondingly formed on two sides of the upper and lower tanks (33, 31); the first and second oil inlet passages (12, 13) are correspondingly provided with first and second check valves (44, 45); the first oil inlet passage (12) is connected with a hose (40) which is adhered to the bottom case (32); the head of the hose (40) is provided with a first oil suction port (9); the first oil inlet passage (12) is provided with a second oil suction port (10); and the second oil inlet passage (13) is provided with a third oil suction port (11). Therefore, the handheld four-travel engine lubrication system has the advantages of simple and reasonable structure, high circulation speed, high lubrication efficiency, and the like, and can separate oil and gas well and stably work in any posture.
Description
Technical field
The invention relates to the lubrication system of a kind of hand four stroke engine, particularly a kind of hand four stroke engine.
Background technique
Progress and economic fast development along with science and technology, town and country assume an entirely new aspect, family's living conditions and living standard be improved significantly, be mainly used in having obtained fast development such as hand four stroke machines such as ground auger, ice auger, ploughing machine, lawn mowers on the garden instrument.But hand-held type miniature motor in the market is mainly take the two stroke engine of any direction work as main.But along with the enhancing of environmental consciousness, what toxic emission required improves constantly, and it is an inevitable trend that hand four stroke engine replaces the hand-held two stroke engine.
But in use there is following defective in hand four stroke engine: the one, and motor is in the course of the work, in order to ensure reliable under any operating attitude of each systems such as crankshaft-link rod piston mechanism, distribution device, the lubrication system that must configuration can make the lubricant oil efficient circulation, but existing lubrication system is because oil circuit is too tortuous, complex structure, assemble loaded down with trivial details, the production and processing difficulty is large, thereby cause lubricant oil to be transported to fast each working room unblockedly, reduce to a certain extent the cycle efficiency of lubricant oil; The 2nd, when the motor arbitrary overturn was worked, because Oil-gas Separation is undesirable, the lubrication system circulation is not smooth, it was uneven to cause the inner way to cycle oil internal pressure of lubrication system to distribute, and functional reliability is poor, and oil consumption is large, directly affects the working efficiency of motor.For this reason, many manufacturers and knowledgeable people develop and develop for the defective of above-mentioned existence, but not yet have so far comparatively ideal product alive.
Summary of the invention
In order to overcome the existing existing above-mentioned deficiency of hand four stroke engine, the purpose of the invention provides a kind of simple and reasonable, speed of circulation is fast, lubricating efficiency is high, Oil-gas Separation is good, any attitude can both smooth working hand four stroke engine lubrication system.
The invention solves this technical problem the technological scheme that adopts, it comprises the accumulator that drain pan and lower box form, the crankshaft room that lower box and upper box form, the valve cage that upper box and cylinder head cover form, the cam chamber that upper box and cam chamber cap form, connect the tappet chamber between valve cage and the cam chamber, described upper lower box both sides correspondence is provided with the first and second oil-feed paths that are communicated with accumulator and crankshaft room, correspondence is provided with the first and second one-way valves on the first and second oil-feed paths, be connected with the flexible pipe that is attached on the drain pan on the first oil-feed path, the flexible pipe head is provided with the first inlet port, the first oil-feed path is provided with the second inlet port, and the second oil-feed path is provided with the 3rd inlet port.
Be provided with the path that oils between described crankshaft room and the valve cage, the path that oils is provided with one-way valve, be provided with way to cycle oil between valve cage and the accumulator, be provided with the 3rd oil-feed path between cam chamber and the crankshaft room, be provided with the cam chamber way to cycle oil between cam chamber and the accumulator.
Described valve cage bottom is provided with a forward spill port that communicates with way to cycle oil at least, cylinder head cover is provided with the annular oil-return groove that communicates with way to cycle oil, cylinder head cover all around four direction all is provided with a side spill port that communicates with annular oil-return groove at least, and the top of cylinder head cover is provided with an inversion spill port that communicates with way to cycle oil at least.
In the described cam chamber camshaft is installed, camshaft is provided with centrifuge mechanism, this mechanism comprises separation housing, fixed cover, filter screen, separate in the housing and be provided with hollow cavity, filter screen is installed in this hollow cavity, fixed cover is fixed on the inner ring that separates housing and is assemblied on the camshaft, the outer ring of separating housing is provided with the radial outward admission mouth that communicates with this hollow cavity, the inner ring, fixed cover and the camshaft that separate housing are provided with the centrifugal outlet passageway that communicates with this hollow cavity, and centrifugal outlet passageway is connected with air filter by breathing path.
After adopting said structure, have the following advantages compared with the prior art and effect:
The one, because the first and second oil-feed paths are set between accumulator and crankshaft room, be connected with the flexible pipe that is attached on the drain pan on the first oil-feed path, make motor can both suck each work system of lubricant oil high-efficiency lubricating from accumulator in any operating attitude, guarantee that motor can both work in any operating attitude.
The 2nd, because cylinder head cover is provided with the annular oil-return groove that communicates with current return circuit, cylinder head cover all around four direction all is provided with a side spill port that communicates with annular oil-return groove at least, the top of cylinder head cover is provided with an overhead spill port that communicates with way to cycle oil at least, greatly strengthened the oil absorption of cylinder head cover, the lubricant oil of valve cage fast and effeciently can both be back to accumulator in any operating attitude, can prevent that the grease accumulation spillover from appearring in cylinder head cover, guarantee with the minimum maximum lubrication effect of lubricant oil performance.
The 3rd, camshaft is provided with the together centrifuge mechanism of rotary work, form petrol engine respiratory ventilation passage by the centrifugal outlet passageway on inner ring, fixed cover and the camshaft of radial outward admission mouth and seal casinghousing, the oil gas that enters in the centrifuge mechanism from cam chamber is separated, the oil droplet that separates is got rid of back cam chamber under centrifugal action, the gas that separates enters air filter and participates in burning, respiratory ventilation is unobstructed, vapour lock is little, good separating effect, lubrication oil consumption are little, working stability is reliable, high working efficiency.
Description of drawings
Fig. 1 is the structural representation of the invention.
Fig. 2 is the A-A sectional view of the invention Fig. 1.
Fig. 3 is the centrifuge mechanism enlarged diagram of the invention.
Plan view when Fig. 4 is the invention removal wind scooper and cylinder head cover.
Fig. 5 is the structural representation that the present invention creates cylinder head cover.
Fig. 6 is the B-B sectional view of the invention Fig. 5.
Fig. 7 is the work schematic representation of the invention air filter down the time.
Fig. 8 is the work schematic representation of the invention silencing apparatus down the time.
Work schematic representation when Fig. 9 is the invention inversion.
Figure 10 is the work schematic representation of the invention clutch mechanism down the time.
Figure 11 is the work schematic representation of the invention hand-pulling starting mechanism down the time.
1 accumulator wherein, 2 crankshaft room, 3 valve cages, 4 air filters, 5 one-way valves, 6 paths that oil, 7 way to cycle oil, 8 forward spill ports, 9 first inlet ports, 10 second inlet ports, 11 the 3rd inlet ports, 12 first oil-feed paths, 13 second oil-feed paths, 14 the 3rd oil-feed paths, 15 second filler openings, 16 first filler openings, 17 centrifuge mechanism, 18 Carburetors, 19 are inverted spill port, 20 side spill ports, 21 fixed covers, 22 radial outward admission mouths, 23 filter screens, 24 centrifugal outlet passageways, 25 separate housing, 26 annular oil-return grooves, 27 hand-pulling starting mechanisms, 28 clutch mechanisms, 29 silencing apparatuss, tappet chambers 30,31 lower boxes, 32 drain pans, 33 upper boxes, 34 pistons, 35 crankshaft-link rod assemblies, 36 cylinder head covers, 37 cam chambers, 38 cam chamber caps, 39 camshafts, 40 flexible pipes, 41 breathe path, 42 lower dead center, 43 top dead centers, 44 first one-way valves, 45 second one-way valves, 46 cam chamber way to cycle oil.
Embodiment
Fig. 1 is to shown in Figure 6, for a kind of hand-held four of the invention rushes the engine lubrication system specific embodiments, it comprises the accumulator 1 that drain pan 32 and lower box 31 form, the crankshaft room 2 that lower box 31 and upper box 33 form, the valve cage 3 that upper box 33 and cylinder head cover 36 form, the cam chamber 37 that upper box 33 and cam chamber cap 38 form, connect the tappet chamber 30 between valve cage 3 and the cam chamber 37, crankshaft-link rod assembly 32 and piston 34 are installed in the crankshaft room 2,18 Carburetors are connected with fuel tank, described upper lower box 33,31 both sides correspondences are provided with the first and second oil-feed paths 12 that are communicated with accumulator 1 and crankshaft room 2,13, the first and second oil-feed paths 12, correspondence is provided with the first and second one-way valves 44 on 13,45, the first oil-feed path 12 is communicated with crankshaft room 2 by the first filler opening 16, the second oil-feed path 13 is communicated with crankshaft room 2 by the second filler opening 15, be connected with the flexible pipe 40 that is attached on the drain pan 32 on the first oil-feed path 12, flexible pipe 40 heads are provided with the first inlet port 9, the first oil-feed path 12 is provided with the second inlet port 10, the second oil-feed paths 13 and is provided with the 3rd inlet port 11.
Be provided with the path 6 that oils between described crankshaft room 2 and the valve cage 3, the path 6 that oils is provided with one-way valve 5, be provided with way to cycle oil 7 between valve cage 3 and the accumulator 1, be provided with the 3rd oil-feed path 14 between cam chamber 37 and the crankshaft room 2, be provided with cam chamber way to cycle oil 46 between cam chamber 37 and the accumulator 1.Described valve cage 3 bottoms are provided with a forward spill port 8 that communicates with way to cycle oil 7 at least, cylinder head cover 36 is provided with the annular oil-return groove 26 that communicates with way to cycle oil 7, cylinder head cover 36 all around four direction all is provided with a side spill port 20 that communicates with annular oil-return groove 26 at least, and the top of cylinder head cover 36 is provided with an inversion spill port 19 that communicates with way to cycle oil 7 at least.
In the described cam chamber 37 camshaft 39 is installed, camshaft 39 is provided with centrifuge mechanism 17, this mechanism comprises separation housing 25, fixed cover 21, filter screen 23, separate in the housing 25 and be provided with hollow cavity, filter screen 23 is installed in this hollow cavity, fixed cover 21 is fixed on the inner ring that separates housing 25 and is assemblied on the camshaft 39, the outer ring of separating housing 25 is provided with the radial outward admission mouth 22 that communicates with this hollow cavity, the inner ring that separates housing 25, fixed cover 21 and camshaft 39 are provided with the centrifugal outlet passageway 24 that communicates with this hollow cavity, and centrifugal outlet passageway 24 is connected with air filter 4 by breathing path 41.
The working principle of the invention is as follows:
During motor forward placement work, shown in Fig. 1,2,3,4,5 and 6, motor begins a circulation, and bent axle begins to rotate, and piston 34 lower limbs are moved upward to the first filler opening 16 and the second filler opening 15 positions by lower dead center 42.In this process, crankshaft room's 2 interior formation negative pressure, the mixed gas of cam chamber 37 interior fresh airs and unnecessary mist of oil is inhaled into crankshaft room 2 by the 3rd oil-feed path 14.Centrifuge mechanism 17 is in the High Rotation Speed process, mist of oil enters from radial outward admission mouth 22 and separates in the housing 25, mist of oil is separated into oil droplet and air when the small space by filter screen 23 inside, the lubricated oil droplet that is separated is with fresh air sucked back cam chamber 37 under the negative pressure that piston 34 forms, and the fresh air of air filter 4 is inhaled into centrifuge mechanism 17.
Bent axle continues rotation, and piston 34 lower limbs are continued to move up by the first filler opening 16, the second filler opening 15 positions, until top dead center 43 positions.The first filler opening 16, the second filler opening 15 on the upper box 33 are opened in piston 34 moving process, the the first oil-feed path 13, the second oil-feed path 12 that connect crankshaft room 2 and accumulator 1 are opened simultaneously, fresh air in the air filter chamber 4 is inhaled into centrifuge mechanism 17, and the fresh air in the centrifuge mechanism 17 and the oil droplet that is separated are inhaled into cam chamber 37.Mist of oil in the cam chamber 37 is inhaled into valve cage 3, and valve cage 3 interior unnecessary lubricant oil are sucked back accumulator 1 by forward return port 8 by strong negative pressure.Lubricant oil in the accumulator 1 sucks by the first inlet port 9 that is in the pasta below, is sucked crankshaft room 2 by the first one-way valve 44, the first oil-feed path 12 by the strong negative pressure of piston 34 up formation.Mixed gas in the accumulator 1 is by being in the second inlet port 10, the 3rd inlet port 11 of pasta top simultaneously, minute two-way enters crankshaft room 2, leads up to the second inlet port 10, the first one-way valve 44, the first oil suction path 12 to be sucked crankshaft room 2 by the strong negative pressure of piston 34 up formation; Another road is sucked crankshaft room 2 by the second oil suction path 13 by the strong negative pressure of piston 34 up formation by the 3rd inlet port 11, the second one-way valve 45.Rotation at crankshaft-link rod assembly 35 converts mist of oil to.
Bent axle continues rotation, piston 34 is moved down into the process of lower dead center 42 by top dead center 43, in crankshaft room's 2 interior formation malleations, the second one-way valve 45 in the first one-way valve 44 in the first oil inlet passage 12 and the second oil inlet passage 13 is closed, the one-way valve 5 that leads to valve cage 3 is opened, and the mist of oil in the crankshaft room 2 enters valve cage 3 by the passage 7 that oils under strong pressure.Part mist of oil in the valve cage 3 enters cam chamber 37 by tappet chamber 30 under pressure.The unnecessary escape gas of cam chamber 37 enters centrifuge mechanism 17 under pressure.Through the separation of centrifuge mechanism 17 rotations, separated oil droplet returns cam chamber 37, and the waste gas of separated mistake enters air filter chamber 4.
In the time of engine shutdown, cam chamber 37 residual lubricant oil flow back to accumulator 1 by cam chamber drainback passage 46, and valve cage 3 residual lubricant oil return accumulator 1 by forward return port 8 and way to cycle oil 7.
When the work of motor side direction and air filter 4 down the time, as shown in Figure 7.When piston 34 lower limbs went upward to the first filler opening 15, the second filler opening 16 position from lower dead center 42 positions, the engine operation principle was the same with forward work, no longer repeats at this.
Bent axle continues rotation, piston 34 lower limbs are from the first filler opening 16, the second filler opening 15 goes upward to top dead center 43 position processes, the second one-way valve 45 that is arranged on the first one-way valve 44 on the first oil-feed path 12 and is arranged on the second oil-feed path 13 is opened simultaneously, the first inlet port 9 on the flexible pipe 40 is in the pasta top at this moment, the 3rd inlet port 11 on the second oil-feed path 13 is in the pasta top, the second inlet port 10 on the first oil-feed path 12 is in the pasta below, and lubricant oil is by the second inlet port 10, the first one-way valve 44 and the first oil suction path 12 are sucked crankshaft room 2 by the strong negative pressure of piston 34 up formation.Mixed gas is leaded up to the 3rd inlet port 11, the second one-way valve 45 and the second oil-feed path 13, and another road is sucked crankshaft room 2 by the first inlet port 9, flexible pipe 40, the first one-way valve 44 and the first oil suction path 12 by the strong negative pressure of piston 34 up formation.Guaranteed that can be drawn onto oil when this direction work also can suck mist of oil simultaneously, the lubricant oil that is inhaled into crankshaft room 2 is converted to mist of oil by the motion of crankshaft-link rod assembly 35 and piston 34.Valve cage 3 interior residual lubricant oil and lubricant mist are under strong negative pressure, by being arranged on valve cage 3 interior front, rear, left and right four directions following at least one spill port 20, way to cycle oil 7 sucked back accumulators 1, the sucked back valve cage 3 of cam chamber 37 interior unnecessary mist of oils, centrifuge mechanism 17 interior fresh airs and be rotated the lubricant oil of separating and be inhaled into cam chamber 37.Fresh air in the air filter 4 is inhaled into centrifuge mechanism 17, because centrifuge mechanism 17 is in cam chamber 37 inside than the neutral position, so can realize rotating separation lubricant oil and gas at arbitrary orientation.
Bent axle continues rotation, and piston 34 comes downwards to lower dead center 42 processes by top dead center 43, and is the same with the work of motor forward, no longer repeats at this.
When the work of motor side direction and silencing apparatus 29 down the time, as shown in Figure 8, when piston 34 lower limbs went upward to the first filler opening 16, the second filler opening 15 position from lower dead center 42 positions, motor was the same with forward work, no longer repeats at this.
Bent axle continues rotation, and piston 34 lower limbs go upward to top dead center 43 position processes from the first filler opening 16, the second filler opening 15, is arranged on the first one-way valve 44 on the first oil-feed path 12 and the second one-way valve 45 that is arranged on the second oil-feed path 13 and opens.The first inlet port 9 on the oil inlet hose 40 is in the pasta below at this moment, the 3rd inlet port 11 on the second oil-feed path 13 is in the pasta below, the second inlet port 10 is in the pasta top, lubricant oil is leaded up to the 3rd inlet port 11, the second one-way valve 45 and the second oil suction path 13, and another road is sucked crankshaft room 2 by the first inlet port 9, flexible pipe 40, the first one-way valve 44 and the first oil-feed path 12 by the strong negative pressure of piston 34 up formation.Mixed gas is sucked crankshaft room 2 by the second inlet port 10, the first one-way valve 44 and the first oil-feed path 12 by the strong negative pressure of piston 34 up formation, guaranteed that can be drawn onto oil when this direction work also can suck mist of oil simultaneously, the lubricant oil that is inhaled into crankshaft room 2 is converted to mist of oil by the motion of crankshaft-link rod assembly 35 and piston 34.Valve cage 3 interior residual lubricant oil and mist of oil are under strong negative pressure, by being arranged on valve cage 3 interior front, rear, left and right four directions following at least one spill port 20, way to cycle oil 7 sucked back accumulators 1, the sucked back valve cage 3 of cam chamber 37 interior unnecessary mist of oils, centrifuge mechanism 17 interior fresh airs and be rotated the lubricant oil of separating and be inhaled into cam chamber 37, the fresh airs in the air filter 4 are inhaled into centrifuge mechanism 17; Because centrifuge mechanism 17 is in cam chamber 37 inside than the neutral position, so can realize rotating separation lubricant oil and gas at arbitrary orientation.
Bent axle continues rotation, and piston 34 comes downwards to lower dead center 42 processes by top dead center 43, and is the same with the work of motor forward, no longer repeats at this.
When the work of motor side direction and clutch mechanism 28 down the time, as shown in figure 10, when piston 34 lower limbs went upward to the first filler opening 16, the second filler opening 15 position from lower dead center 42 positions, motor was the same with forward work, no longer repeats at this.
Bent axle continues rotation, piston 34 lower limbs are from the first filler opening 16, the second filler opening 15 goes upward to top dead center 43 position processes, the second one-way valve 45 that is arranged on the first one-way valve 44 on the first oil-feed path 12 and is arranged on the second oil-feed path 13 is opened, the first inlet port 9 is in the pasta below on the oil inlet hose 40 at this moment, the 3rd inlet port 11 that is arranged on the second oil-feed path 13 is in the pasta top, the second inlet port 10 is in the pasta top, lubricant oil is by the first inlet port 9, the first one-way valve 44 and the first oil suction path 12 are sucked crankshaft room 2 by the strong negative pressure of piston 34 up formation, mixed gas divides two-way to enter crankshaft room 2, lead up to the second inlet port 10, the first one-way valve 44 and the first oil-feed path 12 are sucked crankshaft room 2 by the strong negative pressure of piston 34 up formation, another road is by the 3rd inlet port 11, the second one-way valve 45 and the second oil-feed path 13 are sucked crankshaft room 2 by the strong negative pressure of piston 34 up formation, guaranteed that can be drawn onto oil when this direction work also can suck mist of oil simultaneously, the lubricant oil that is inhaled into crankshaft room 2 is converted to mist of oil by the motion of crankshaft-link rod assembly 35 and piston 34.Valve cage 3 interior residual lubricant oil and lubricant mist are under strong negative pressure, by be arranged on valve cage 3 interior before, after, left, at least one spill port 20 of right four direction lower position and way to cycle oil 7 sucked back accumulators 1, the sucked back valve cage 3 of cam chamber 37 interior unnecessary mist of oils, centrifuge mechanism 17 interior fresh airs and the lubricant oil that is separated are inhaled into cam chamber 37, fresh air in the air filter chamber 4 is inhaled into centrifuge mechanism 17, because centrifuge mechanism 17 is in cam chamber 37 inside than the neutral position, so can realize rotating separation lubricant oil and gas at arbitrary orientation.
Bent axle continues rotation, and piston 34 comes downwards to lower dead center 42 processes by top dead center 43, and is the same with the work of motor forward, no longer repeats at this.
When the work of motor side direction and hand-pulling starting mechanism 27 down the time, as shown in figure 11, the working principle of motor and the work of above-mentioned motor side direction and clutch mechanism 28 working principle down the time is identical, no longer repeats at this.
When motor inversion work, as shown in Figure 9, when piston 34 lower limbs went upward to the first filler opening 16, the second filler opening 15 position from lower dead center 42 positions, motor was the same with forward work, no longer repeats at this.
Bent axle continues rotation, piston 34 lower limbs are from the first filler opening 16, the second filler opening 15 goes upward to top dead center 43 position processes, the second one-way valve 45 that is arranged on the first one-way valve 44 on the first oil-feed path 12 and is arranged on the second oil-feed path 13 is opened simultaneously, the first inlet port 9 on the oil inlet hose 40 is in the pasta top at this moment, the 3rd inlet port 11 on the second oil-feed path 13 is in the pasta below, the second inlet port 10 is in the pasta below, wherein one road lubricant oil is by the 3rd inlet port 11, the second one-way valve 45 and the second oil suction path 13 are sucked crankshaft room 2 by the strong negative pressure of piston 34 up formation, another road lubricant oil is by the second inlet port 10, the first one-way valve 44 and the first oil-feed path 12 are sucked crankshaft room 2 by the strong negative pressure of piston 34 up formation, mixed gas is by the first inlet port 9, the first one-way valve 44 and the first oil-feed path 12 are sucked crankshaft room 2 by the strong negative pressure of piston 34 up formation, guaranteed that can be drawn onto oil when this direction work also can suck mist of oil simultaneously, the lubricant oil that is inhaled into crankshaft room 2 is converted to mist of oil by the motion of crankshaft-link rod assembly 35 and piston 34, valve cage 3 interior residual lubricant oil and lubricant mist are under strong negative pressure, by being arranged at least one inversion spill port 19 of valve cage 3 interior lower positions, way to cycle oil 7 sucked back accumulators 1, the sucked back valve cage 3 of cam chamber 37 interior unnecessary mist of oils, centrifuge mechanism 17 interior fresh airs and the lubricant oil that is separated are inhaled into cam chamber 37, fresh air in the air filter chamber 4 is inhaled into centrifuge mechanism 17, because centrifuge mechanism 17 is in cam chamber 37 inside than the neutral position, so can realize rotating separation lubricant oil and gas at arbitrary orientation.
Bent axle continues rotation, and piston 34 comes downwards to lower dead center 42 processes by top dead center 43, and is the same with the work of motor forward, no longer repeats at this.
Claims (4)
1. hand four stroke engine lubrication system, comprise the accumulator (1) that drain pan (32) and lower box (31) form, the crankshaft room (2) that lower box (31) and upper box (33) form, the valve cage (3) that upper box (33) and cylinder head cover (36) form, the cam chamber (37) that upper box (33) and cam chamber cap (38) form, connect the tappet chamber (30) between valve cage (3) and the cam chamber (37), it is characterized in that: described upper lower box (33,31) the both sides correspondence is provided with the first and second oil-feed paths (12 that are communicated with accumulator (1) and crankshaft room (2), 13), the first and second oil-feed paths (12,13) upper correspondence is provided with the first and second one-way valves (44,45), be connected with the flexible pipe (40) that is attached on the drain pan (32) on the first oil-feed path (12), flexible pipe (40) head is provided with the first inlet port (9), the first oil-feed path (12) is provided with the second inlet port (10), and the second oil-feed path (13) is provided with the 3rd inlet port (11).
2. hand four stroke engine lubrication system according to claim 1, it is characterized in that: be provided with the path that oils (6) between described crankshaft room (2) and the valve cage (3), the path (6) that oils is provided with one-way valve (5), be provided with way to cycle oil (7) between valve cage (3) and the accumulator (1), be provided with the 3rd oil-feed path (14) between cam chamber (37) and the crankshaft room (2), be provided with cam chamber way to cycle oil (46) between cam chamber (37) and the accumulator (1).
3. hand four stroke engine lubrication system according to claim 2, it is characterized in that: described valve cage (3) bottom is provided with a forward spill port (8) that communicates with way to cycle oil (7) at least, cylinder head cover (36) is provided with the annular oil-return groove (26) that communicates with way to cycle oil (7), cylinder head cover (36) all around four direction all is provided with a side spill port (20) that communicates with annular oil-return groove (26) at least, and the top of cylinder head cover (36) is provided with an inversion spill port (19) that communicates with way to cycle oil (7) at least.
4. according to claim 2 or 3 described hand four stroke engine lubrication systems, it is characterized in that: camshaft (39) is installed in the described cam chamber (37), camshaft (39) is provided with centrifuge mechanism (17), this mechanism comprises separation housing (25), fixed cover (21), filter screen (23), separate in the housing (25) and be provided with hollow cavity, filter screen (23) is installed in this hollow cavity, fixed cover (21) is fixed on the inner ring that separates housing (25) and is assemblied on the camshaft (39), the outer ring of separating housing (25) is provided with the radial outward admission mouth (22) that communicates with this hollow cavity, the inner ring that separates housing (25), fixed cover (21) and camshaft (39) are provided with the centrifugal outlet passageway (24) that communicates with this hollow cavity, and centrifugal outlet passageway (24) is connected with air filter (4) by breathing path (41).
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110385313 CN102418575B (en) | 2011-11-29 | 2011-11-29 | Handheld four-travel engine lubrication system |
| PCT/CN2011/085122 WO2013078749A1 (en) | 2011-11-29 | 2011-12-31 | Handheld four-stroke engine lubricating system |
| KR1020137032622A KR101512925B1 (en) | 2011-11-29 | 2011-12-31 | Handheld four-stroke engine lubricating system |
| EP11876459.6A EP2787184B1 (en) | 2011-11-29 | 2011-12-31 | Handheld four-stroke engine lubricating system |
| ES11876459.6T ES2617590T3 (en) | 2011-11-29 | 2011-12-31 | Lubrication system of a manual four-stroke engine |
| US14/430,552 US9714592B2 (en) | 2011-11-29 | 2011-12-31 | Handheld four-stroke engine lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110385313 CN102418575B (en) | 2011-11-29 | 2011-11-29 | Handheld four-travel engine lubrication system |
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| Publication Number | Publication Date |
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| CN102418575A CN102418575A (en) | 2012-04-18 |
| CN102418575B true CN102418575B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110385313 Active CN102418575B (en) | 2011-11-29 | 2011-11-29 | Handheld four-travel engine lubrication system |
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| JP2018096233A (en) * | 2016-12-09 | 2018-06-21 | 本田技研工業株式会社 | Internal combustion engine |
| CN109108376B (en) * | 2017-06-22 | 2022-03-01 | 罗伯特·博世有限公司 | Oil tank for a hand-held power tool and hand-held power tool having an oil tank |
| CN111271175A (en) * | 2020-02-10 | 2020-06-12 | 永康市兴虎动力机械有限公司 | Portable four-stroke gasoline engine of hand-held type multipurpose |
| CN111305926B (en) * | 2020-02-19 | 2020-12-18 | 重庆鼎工机电有限公司 | General engine capable of meeting use of large inclination angle |
| CN112212201B (en) * | 2020-10-13 | 2021-11-26 | 大庆立发装备制造有限公司 | Automobile lubricating oil recovery device with automatic suction function |
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| JP3749614B2 (en) * | 1998-03-27 | 2006-03-01 | 石川島芝浦機械株式会社 | 4-cycle engine oil supply system |
| CN2649780Y (en) * | 2003-08-29 | 2004-10-20 | 胡济荣 | Small-sized four-stroke general petrol engine with fog lubrication |
| TW200905065A (en) * | 2007-07-17 | 2009-02-01 | Si-Liang Lin | Engine lubrication loop device |
| CN202370610U (en) * | 2011-11-29 | 2012-08-08 | 星月集团有限公司 | Handheld four-stroke engine lubricating system |
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2011
- 2011-11-29 CN CN 201110385313 patent/CN102418575B/en active Active
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