CN100460638C

CN100460638C - Engines

Info

Publication number: CN100460638C
Application number: CNB2006100907902A
Authority: CN
Inventors: 陈永清; 陈志杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-30
Filing date: 2006-06-30
Publication date: 2009-02-11
Anticipated expiration: 2026-06-30
Also published as: CN101096925A

Abstract

The invention discloses an engine, which is characterized by the following: constructing facing type piston with body piston and casing piston; placing the facing type piston in cylinder; covering the facing piston out of the body piston; pivoting to heart-shaped groove on the two sides of bent axle in bent axle box through the two sides brace; generating upper and lower stroke interlock with the body piston; constructing the engine. This invention possesses high power, small volume and simple structure, which is a great breakthrough in the developing history of engine.

Description

Engine

Technical field

The present invention is relevant with the two stroke IC engine structure, and particularly a kind of engine is that the instantaneous explosion power of fuel is converted to flexible circular linear motion, is achieved with traction overcoat piston.

Background technique

Internal-combustion engine (engine) is a main flow with two strokes and four-journey generally now, is general existing two-stroke engine organigram referring to Fig. 1 please, and its cylinder block 10 both sides relatively respectively are provided with suction port 11 and relief opening 12; One piston 13 is provided with the piston ring 14 of close only effect and is installed with in cylinder block 10 inside; One connecting rod, 15 1 ends articulate a pin 16 and wear knot in piston 13 inside, and described connecting rod 15 the other ends are articulated on the cylinder block 10 bottom crankcases 17 interior set bent axles 18; When the oil gas of piston 13 in cylinder block 10 inner upward stroke summit compressed mixed, spark plug 19 is lighted the oil gas of compressed mixed and is exploded, piston 13 can be promoted to down stroke, output power by bent axle 18, and piston 13 to down stroke to relief opening 12 positions belows, the waste gas of combustion explosion just can be discharged, discharging moment at waste gas can be in the precompressed of relief opening 12 generation venturi effect and crankcase, make cylinder block 10 tops be negative pressure state, can suck the oil gas that mixes by suction port 11 (being provided with one-way cock), this moment, piston 13 utilized connecting rod 15, the rotating power of bent axle 18 produces upward stroke and promotes, and the oil gas of compressed mixed and igniting blast once more.Hence one can see that, and two-stroke engine has economic benefits such as simple structure, power loss is little, horsepower is big, because piston 13 upper and lower strokes are the events through set relatively suction port 11 in cylinder block 10 both sides and relief opening 12, can't be in crankcase 17 internal reservoir lubricating oils, need lubricate based on machinery action, therefore the two-stroke engine structure need add lubricating oil in gasoline, when burning, can produce lubricant film, incomplete combustion be arranged, just cause toxic emission not to be inconsistent the pollution problem of environmental protection eventually and show.The present invention is how to make two-stroke engine more can reach low its research and development purpose that is desirably polluting and improve horsepower of toxic emission.

Summary of the invention

Therefore, main purpose of the present invention is to provide a kind of engine, the present invention is based on two-stroke engine, one overcoat piston is nested with in main body piston outside, described overcoat piston articulates in the set heart-shaped groove in bent axle both sides with two side pull-rods, can produce with the main body piston, the down stroke interlock, can become flexible circular linear interlock to the power-converting of instancy of combustion blast, in order to substitute the numerous and diverse air valve structure of four-journey engine, and set up in overcoat piston and main body piston skirt and to block ring, cooperate precompressed single current in the crankcase to air flue, just can be with the lubrication mode of four-journey, solve the shortcoming that two-stroke engine will add lubricating oil in the gasoline combustion since the dawn of human civilization.

Another purpose of the present invention is to provide a kind of engine, the described overcoat piston that is nested with in main body piston outside, but the set heart-shaped groove angle in mat bent axle both sides changes, what make can block the oil gas that mixes in the cylinder to the relative inlet and outlet mouth premature closure in cylinder block both sides and leak, and the increase cylinder intake air quantity, improve compression and recently increase horsepower.

Another object of the present invention is to provide a kind of engine, oil pump lubricating parts and replacement Carburetor that one oil supply system can utilize the set heart-shaped groove in bent axle both sides to be driven, oil mass that can the standard proportions of ingredients is each quantitatively to be extruded, cooperate an one-way valve to prevent that oil mass from refluxing, regulation and control through unidirectional pressure regulator valve can unidirectionally flow into fuel oil again, but superpressure oil return again increases and decreases each fuel delivery, then can fuel oil is stable by nozzle direct cylinder injection internal combustion, replace the disappearance of traditional Carburetor and electrospray fuel feeding.

Still a further object of the present invention is to provide a kind of engine, the first rank cylinder diameter of described overcoat piston and cylinder block has all designed the wave-like type edge, the engageable wave interface that becomes when both contact, so that in the upper and lower stroke interlock of main body piston and overcoat piston, the piston ring of main body piston can smooth and easyly enter or shift out the chamber of overcoat piston, unlikely Ka Gou.

To achieve these goals, the invention provides a kind of engine, wherein: be equipped with the shell type piston that is constituted by main body piston, overcoat piston in the cylinder block, described overcoat piston is to be nested with in main body piston outside, and be articulated in the set heart-shaped groove in bent axle both sides in the crankcase of cylinder block bottom with two side pull-rods, produce upper and lower stroke interlock with the main body piston; It is characterized in that: the cylinder diameter in the cylinder block is a two-step shape, have big or small cylinder diameter difference, and the interface of overcoat piston and the cylinder first rank cylinder diameter is wavy.

Further preferably, wherein the main body piston of shell type piston or overcoat piston skirt have additional and prevent that lubricating oil from blocking ring by what the inlet and outlet mouth leaked.

Further preferably, wherein to establish the heart-shaped groove that can drive the upper and lower stroke of overcoat piston be to be formed by connecting by large and small annular ditch groove in the bent axle both sides.

Further preferably, wherein the set heart-shaped groove in bent axle both sides is depression form or protrusion form, or is the concavo-convex form of taking turns.

Further preferably, wherein cylinder block bottom crankcase communicates to separated air flue with a single current, controls the air inlet gas flow by described single current to separated air flue.

Further preferably, wherein crankcase interior gas in cylinder block bottom enters cylinder or enters cylinder again through deriving crankcase to separated air flue via single current.

Further preferably, wherein also have the in-cylinder direct injection oil supply system, it is made of oil pump, one-way valve, unidirectional modulating valve, and the oil pump power of oil supply system is given birth to by the set heart-shaped groove rotating band movable property in bent axle both sides in the crankcase of cylinder block bottom.

Description of drawings

Fig. 1 is known two-stroke engine organigram;

Fig. 2 is engine configuration schematic representation of the present invention (compression, an ignition location);

Fig. 3 is engine configuration schematic representation of the present invention (instant of detonation, the main body piston is in advance to down stroke);

Fig. 4 is engine configuration schematic representation of the present invention (exhaust, air inlet position);

Fig. 5 is engine configuration schematic representation of the present invention (an overcoat piston closes inlet and outlet mouth, and main body piston upward stroke preparation compression);

Fig. 6 is the side direction view of shell type piston of the present invention and bent axle pivot joint;

Fig. 7 is the forward view of shell type piston of the present invention and bent axle pivot joint;

Fig. 8 is the sectional view of shell type piston of the present invention combination;

Fig. 9 is the unidirectional separated air flue subsection-inlet of a present invention flow schematic diagram;

Figure 10 is the unidirectional separated air flue subsection-inlet of a present invention flow schematic diagram;

Figure 11 is an in-cylinder direct injection oil supply system schematic representation of the present invention;

Figure 12 is the oil pump systems schematic representation of lubricating parts of the present invention;

Figure 13 is the be connected organigram of overcoat piston of the present invention with the cylinder block first rank cylinder diameter;

Figure 14 is connected the schematic representation of the piston ring effect of structure and main body piston for Figure 13.

Description of reference numerals: 10 cylinder block; The 10A first rank cylinder diameter; The 10B second rank cylinder diameter; 11 suction ports; 12 relief openings; 13 pistons; 14 piston rings; 15 connecting rods; 16 pins; 17 crankcases; 171 lubricated machine shaddocks; 18 bent axles; 19 spark plugs; 20 main body pistons; 21 piston rings; 22 block ring; 30 overcoat pistons; 31 chambers; 32 piston rings; 33 block ring; 34 draw-bar seats; 35 pull bars; 36 slide guides wheel; 41 big annular ditch grooves; The little annular ditch groove of 42A; The little ring-type flute of 42B; 43 groove low spots; 50 single currents are to separated air flue; 51 closures; 52 first one-way valves; 53 second one-way valves; 54 the 3rd one-way valves; 55 oil nozzles; 56 Carburetors; 60 oil pumps; 61 gasoline lines; 62 one-way valves; 621 valve bodies; 622 pressure springs; 623 valve ports; 624 gaps; 63 unidirectional modulating valve; 631 gasoline are gone into oil pipe; 632 valve rods; 633 valve bodies; 634 valve lever clearances; 635 valve body gaps; 636 voltage regulation screws; 70 oil pumps; 71 in line check valve mouths; 72 fuel-displaced check-valve port; 80 wave nibs; 81 wave concave edges; 82 wavy interfaces.

Embodiment

For to purpose of the present invention, feature and effect, have and further understand and approval, lift a preferred embodiment and cooperate graphic being described as follows.

Please referring to Fig. 2 to Fig. 8, organigram for engine of the present invention, mainly utilize and be equipped with in the cylinder block 10 by main body piston 20, the shell type piston structure that overcoat piston 30 is constituted, described shell type piston structure is in cylinder block 10 inner starts, during down stroke, overcoat piston 30 can be to the set relatively suction port 11 in cylinder block 10 both sides, relief opening 12 opening and closing of fault, in order to provide the function that only leaks extremely to the lubricating oil 171 that stores in the crankcase 17, just can need in gasoline, to add lubricating oil in order to overcome two-stroke engine with the lubrication mode of four-journey engine, and can promote the toxic emission cleanliness, and the present invention is characterised in that; The main body piston 20 as shown in Figure 8, and the top is embedded with the close piston ring 21 that ends effect, and the skirt section is provided with blocking of close only effect and encircles 22; Overcoat piston 30, inside are made as the upper and lower chamber 31 of perforation, and its top is embedded with the close piston ring 32 that ends effect, and the skirt section is embedded with blocking of close only effect and encircles 33; Main body piston 20 is that to be nested with in overcoat piston 30 chambers 31 be can upper and lower start; One connecting rod, 15, one ends articulate a pin 16 and wear knot on main body piston 20, and the other end is articulated on the cylinder block 10 bottom crankcases 17 interior set bent axles 18; And relative both sides, bottom, overcoat piston 30 skirt section respectively are provided with a draw-bar seat 34 and can articulate for pull bar 35 1 ends, and pull bar 35 the other ends are articulated with slide guide wheel 36, pull bar 35 is to take knot with described slide guide wheel 36 led by it in the set heart-shaped groove in bent axle 18 both sides, produces upper and lower stroke and can promote overcoat piston 30; Described heart-shaped groove is the annular ditch groove that is arranged with in bent axle 18 both sides, it is for the depression form or protrude form, or be the concavo-convex form of taking turns, one one side of something for big annular ditch groove 41 is and bent axle 18 concentrics, it is in addition half of then to be formed with two two little

annular ditch groove

42A, 42B with bent axle 18 different axle center, is formed with the groove low spot 43 in close bent axle 18 axle center between two little annular ditch groove 42A, the 42B mouth; And cylinder block 10 inner one-tenth second order forms, the first rank cylinder diameter 10A equals main body piston 20 external diameters, and the second rank cylinder diameter 10B equals overcoat piston 30 external diameters, and suction port 11, the relief opening 12 of cylinder block 10 relative both sides then is located on the second rank cylinder diameter 10B; As Fig. 2, Fig. 6, shown in Figure 7, in this position, bent axle 18 upwards is pushed into main body piston 20 in the first rank cylinder diameter 10A of cylinder block 10 by connecting rod 15, the piston ring 21 close oil gas that end compressed mixed that main body piston 20 is embedded with its top, the set heart-shaped groove in bent axle 18 both sides this moment then withstands the slide guide wheel 36 of pull bar 35 with big annular ditch groove 41 positions, make pull bar 35 overcoat piston 30 be remained on the cylinder diameter 10B summit, second rank of cylinder block 10, with its top, the piston ring 32 that the skirt section embedding is appropriate, blocking ring 33 is positioned at into, relief opening 11, on 12, only cut off the lubricating oil 171 of storage in the crankcase 17 by advancing down,, relief opening 11,12 leak; As shown in Figure 3, in this position, spark plug 19 is lighted the oil gas blast of compressed mixed main body piston 20 is sunk to overcoat piston 30 chambers 31 to the down stroke promotion, promptly the main body piston 20 to down stroke promotes bent axle 18 turns counterclockwise 90 degree with connecting rod 15, the pull bar 35 that this moment, overcoat piston 30 both sides articulated, its slide guide wheel 36 still is positioned at the big annular ditch groove 41 of heart-shaped groove, therefore not can with main body piston 20 interlocks, still be positioned at sealing inlet and

outlet mouth

11,12 positions; As shown in Figure 4, continue to promote bent axle 18 turns counterclockwise 180 degree with connecting rod 15 at this position main body piston 20 to down stroke, the pull bar 35 that this moment, overcoat piston 30 both sides articulated, its slide guide wheel 36 enters the groove low spot 43 that is positioned at heart-shaped groove via the little annular ditch groove 42B of a side, pull bar 35 just stretchy overcoat piston 30 and with main body piston 20 synchronous interlocks to down stroke, open inlet and

outlet mouth

11,12; As shown in Figure 5, in this position, bent axle 18 continues turn counterclockwise to about 270 degree, just can promote main body piston 20, overcoat piston 30 synchronous interlock upward strokes and enter the cylinder diameter 10B summit, second rank of cylinder block 10, overcoat piston 30 is once more with 11,12 sealings of inlet and outlet mouth, until being returned to position shown in Figure 2, bent axle 18 is finished once rotation (360 deg), makes main body piston 20 oil gas of upward stroke compressed mixed once more; Narration is to learning, the shell type piston structure that is constituted by main body piston 20 and overcoat piston 30, be to block the lubricating oil 171 that is stored in crankcase 17 to release by inlet and

outlet mouth

11,12, can solve two-stroke engine and need in gasoline, cause the pollution from exhaust emission problem by the interpolation lubricating oil with the lubrication mode of four-journey; Moreover, can change by the set angle that is constituted by big annular ditch groove 41 and two little

annular ditch groove

42A, 42B in bent axle 18 both sides, make relative inlet and

outlet mouth

11,12 premature closures in 30 pairs of cylinder block 10 both sides of overcoat piston, blocking the oil gas that mixes in the cylinder block 10 leaks, and utilize the start of overcoat piston 30 to increase air inflow, improve compression ratio and increase the horsepower effect.

Please referring to Fig. 9, Figure 10, the schematic representation that flows to the separated air flue subsection-inlet for single current of the present invention, described single current is provided with the closure 51 and first one-way valve 52 to the inlet end of separated air flue 50, leading to crankcase 17 then establishes with second one-way valve 53, the 3rd one-way valve 54 and communicates with separated air flue 50, and separated air flue 50 ends are communicated to the suction port 11 of cylinder block 10, and the centre can be provided with oil nozzle 55 or Carburetor 56 in regular turn; Be the volume settings of separated air flue 50 be equal main body piston 20 and overcoat piston 30 in cylinder block 10 the upward stroke summit by aspirated volume in the crankcase 17, as shown in Figure 9, when main body piston 20 and overcoat piston 30 upward strokes (compress, light a fire) to the summit, can in crankcase 17, draw isometric(al) tolerance, air pressure in the crankcase 17 is reduced, just can open second one-way valve 53 separated air flue 50 ambient airs are replenished in the suction separated air flue 50 (X represents); As shown in figure 10, when main body piston 20 and overcoat piston 30 in cylinder block 10 in to down stroke to end point (explode, exhaust), can be to the compression of the air volume in the crankcase 17, just can close first one-way valve 52, second one-way valve 53, and open the 3rd one-way valve 54, lubricated oil gas (O represents) pressurization of the mixing in the crankcase 17 is pushed separated air flue 50 and pushes the ambient air (X represents) that last time is stored in the separated air flue 50 arrive in the cylinder block 10 by suction port 11 via oil nozzle 55 or Carburetor 56; Be that the present invention utilizes first one-way valve 52, second one-way valve 53 and the 3rd one-way valve 54 control air flue air-flow one-way flow, ambient air (X represents) is arranged with crankcase 17 oil gas (O represents) segmentation to be advanced, make oil gas (O represents) circulation in separated air flue 50 and crankcase 17 forever in the crankcase, and ambient air (X represents) can not enter directly to be pushed in the crankcase 17 through oil nozzle 55 or Carburetor 56 and pass through in the suction port 11 arrival cylinder block 10 after entering separated air flue 50.

The in-cylinder direct injection oil supply system of utilizing shell type piston interlock principle to be used for the present invention referring to Figure 11 please, described oil supply system comprises oil pump 60, one-way valve 62, unidirectional modulating valve 63 and is serially connected in therebetween gasoline line 61, described oil pump 60 can be subjected to the heart-shaped groove rotation in bent axle 18 both sides and drive, can gasoline be entered oil pump 60 by going into oil pipe 631 suctions through unidirectional modulating valve 63 with the oil mass of standard proportions of ingredients, pressurize after by in one-way valve 62, the oil nozzle 55 direct cylinder injection bodies via oil pump 60; The valve body 621 of described one-way valve 62 can be subjected to its rear pressure spring 622 and push shutoff valve port 623, stop the gasoline in the oil nozzle 55 end pipelines to reflux, please cooperate referring to A-A figure, valve body 621 4 limits are cut and are provided with four planes, when promoting valve body 621, the quantitative gasoline of oil pump 60 force feeds retreats unlatching valve port 623, gasoline just can be cut the plane clearance of establishing 624 by four limits and pass through, and enters oil nozzle 55 by one-way valve 62 outflows; Described unidirectional pressure regulator valve 63, its front end is provided with a voltage regulation screw 636, side is equiped with a gasoline and goes into oil pipe 631, the rear end is connected with a gasoline line 61 and communicates with oil pump 60, one valve rod 632 is to wear knot in valve body 633, described valve rod 632 is cut with rank, valve body 633 4 limit and is provided with four planes, gasoline with pressure enters unidirectional modulating valve 63 inside by going into oil pipe 631, then can cut the plane clearance of establishing 634 via valve rod 632 4 limits flows, promote valve rod 632 and move forward unlatching, make the unidirectional inflow gasoline line 61 of gasoline in, gasoline in oil pump 60 force feed gasoline lines 61 enters one-way valve 62 as produces the superpressure phenomenon, described superpressure phenomenon then can push back the valve body 623 of unidirectional modulating valve 63 and wear knot valve rod 632 thereon and retreat, make superpressure gasoline cut the plane clearance of establishing 635 and be back to unidirectional modulating valve 63 inside by valve body 633 4 limits, via going into oil pipe 631 oil returns, so just can provide oil nozzle 55 stable more directly to cylinder block 10 ejection institute palpus fuel oils to fuel tank.

Please for utilizing shell type piston interlock principle, the present invention can set up the oil pump systems of a lubricating parts referring to Figure 12, described oil pump systems includes oil pump 70 and in line check valve mouth 71 thereof, fuel-displaced check-valve port 72, and the power of described oil pump 70 can be driven or be driven by the pull bar 35 of overcoat piston 30 by the heart-shaped groove rotation in bent axle 18 both sides.

Please referring to Figure 13, Figure 14, overcoat piston of the present invention is constructed the piston ring relevance schematic representation that reaches with the main body piston with being connected of cylinder block.Chamber 31 tops that are overcoat piston 30 are provided with wave nib 80, join the wave concave edge 81 of answering and be provided with bottom the cylinder block 10 first rank cylinder diameter 10A, when overcoat piston 30 is positioned at cylinder block 10 second rank cylinder diameter 10B dot locations, its set wave nib 80 in chamber 31 tops is to embed engagement in the set wave concave edge 81 in first rank cylinder diameter 10A bottom, just can form wavy interface (as shown in figure 14), on main body piston 20, the down stroke interlock rises in overcoat piston 30 chambers 31 or sinks to, its piston ring 21 is during through the overcoat pistons 30 and the first rank cylinder diameter 10A interface, be to cross between described wavy interface and smooth and easy passing through, so that the piston ring 21 unlikely card ditch phenomenons of main body piston 20.

In sum, engine of the present invention can improve the toxic emission cleanliness factor of two-stroke engine really, and removes The air valve structure that four-journey engine is numerous and diverse, and can increase recently enhancement horsepower output of cylinder intake air quantity raising compression, Can be used again the in-cylinder direct-jet oil supply system and save the plurality of advantages such as carburetor.

Claims

1. engine, be equipped with the shell type piston that is constituted by main body piston, overcoat piston in the cylinder block, described overcoat piston is to be nested with in main body piston outside, and be articulated in the set heart-shaped groove in bent axle both sides in the crankcase of cylinder block bottom with two side pull-rods, produce upper and lower stroke interlock with the main body piston; It is characterized in that: the cylinder diameter in the cylinder block is a two-step shape, have big or small cylinder diameter difference, and the interface of overcoat piston and the cylinder first rank cylinder diameter is wavy.

2. according to the described engine of claim 1, wherein the main body piston of shell type piston or overcoat piston skirt have additional and prevent that lubricating oil from blocking ring by what the inlet and outlet mouth leaked.

3. according to the described engine of claim 1, wherein to establish the heart-shaped groove that can drive the upper and lower stroke of overcoat piston be to be formed by connecting by large and small annular ditch groove in the bent axle both sides.

4. according to the described engine of claim 1, wherein the set heart-shaped groove in bent axle both sides is depression form or protrusion form, or is the concavo-convex form of taking turns.

5. according to the described engine of claim 1, wherein cylinder block bottom crankcase communicates to separated air flue with a single current, controls the air inlet gas flow by described single current to separated air flue.

6. according to the described engine of claim 1, wherein the gas in the crankcase of cylinder block bottom enters cylinder via single current to separated air flue.

7. according to the described engine of claim 1, wherein also has the in-cylinder direct injection oil supply system, it is made of oil pump, one-way valve, unidirectional modulating valve, and the oil pump power of oil supply system is given birth to by the set heart-shaped groove rotating band movable property in bent axle both sides in the crankcase of cylinder block bottom.

8. according to the described engine of claim 1, wherein the gas in the crankcase of cylinder block bottom enters cylinder again through deriving crankcase.