CN2195623Y - Internal combustion engine - Google Patents

Abstract

The utility model provides an internal combustion engine with double-cavity vanes and axis rotors. The internal combustion engine provided with the axis rotors arranged on a shell is characterized in that the inner of the shell is provided with a distributing cavity, a doing cavity and a rotary air valve respectively communicated with the distributing cavity and the doing cavity. The inner contour lines of the distributing cavity and the doing cavity are respectively composed of a circular arc R1 with a radius gamma and a centre angle alpha 1 >180 DEG, a circular arc R2 with a radius R, a centre angle alpha 2 >90 DEG and one end tangential with the circular arc R1, and a curve segment R3 with both ends smoothly connected with R1 and R2 (R > gamma). The axis rotors of the distributing cavity and the doing cavity are respectively provided with at least two radially sliding vanes. The utility model has the advantages of high energy conversion rate, large output torque and obvious oil saving rate.

Description

Internal combustion engine

The utility model relates to a kind of explosive motor, particularly be a kind of four-stroke double chamber blade shaft rotor IC engine.

At present domestic and international common reciprocating piston explosive motor, must connecting rod the straight reciprocating motion of cylinder piston be transformed to rotatablely moving of bent axle, because parts reciprocation mass effect of inertia, unfavorable high speed operation, cylinder output is little, moment of torsion is little, complex structure, component are many, and manufacture cost is higher.The rotary engine of the dried wankel development of end of the fifties Germany engineer (see the automotive encyclopedia first volume that China Machine Press publishes in June, 1992 second piece 17,3,1 the 341st page) remains in low-speed dynamic and the relatively poor shortcoming of fuel economy.And its piston of rotary engine of German You Genkuer taste invention rotates with variable angular velocity, thereby produces inertial force, and its gear, connecting rod, slider material are required the not wide-scale adoption as yet of high deficiency.Above-mentioned its work done thrust of three kinds of explosive motors is all less than 1.

Publication number is that CN1051071A's " rotary engine " and notification number is that the rotary engine work done of being announced among the CN2113349U " vane rotor engine " is 90 ° at interval, its outburst work done corner is about about 100 °, time of thrust application is short, igniting power frequency height, effect square radius was less when maximum fired, owing to the spill firing chamber must be set on rotor, cause exhaust abundant inadequately.

In view of above reason, the purpose of this utility model is in order to provide a kind of structure simpler, and cost is lower, energy conversion rate is high, economize the double chamber blade shaft rotor IC engine of fuel oil.

Casing is arranged in the utility model, be contained in the axle gyrator on the casing, it is characterized in that being provided with in the casing air distribution cavity that contains suction port, air taking port, the work done cavity that contains suction port, relief opening, the rotary air valve that communicates with air distribution cavity, work done cavity respectively, the inner outline of air distribution cavity, work done cavity are respectively the circular arc of 1＞180 ° of γ, central angle alpha by radius With radius be 2＞90 ° of R's, central angle alpha and an end and circular arc Tangent circular arc

With two ends respectively with circular arc

,

The slick and sly curved section R3 that connects forms, R＞γ, curved section R3 institute is to 2=360 ° of central angle alpha 3+ α 1+ α, there are being at least two sheet leaf the utility model that radially slide along the axle gyrator to contain the non-contact electronic ignition system (referring to Fig. 1, Fig. 2, Fig. 3) that is loaded on the spark plug on the relevant position, firing chamber that is positioned at work done cavity on the casing in addition on the opposite position that is arranged in air distribution cavity, work done cavity on the axle gyrator respectively, during work, be contained in the slide leaf on the gyrator in work done cavity and the air distribution cavity.Under centrifugal action, can in rotation, produce transfiguration along inner outline radial slippage in work done cavity or the air distribution cavity, air distribution cavity is finished air inlet, compression process, and work done cavity is finished work done, exhaust process, circular arc

The square helix such as also can adopt, increase the square radius.

Being arranged on the above-mentioned casing has the separate space that contains the gas-entered passageway that communicates with air distribution cavity between work done cavity and air distribution cavity, rotary air valve can communicate with the gas-entered passageway on the middle separate space (referring to Fig. 1), increases area of contact, increases rigidity and working life.

Above-mentioned curved section R3 is involute section (referring to Fig. 2, Fig. 3), also can be parabolic segment or other curved section.

Above-mentioned circular arc ,

With curved section R3 right central angle: α 1=188 °, α 2=138 °, α 3=34 ° (referring to Fig. 3) helps work done.

The exhaust connectivity slot that communicates with relief opening is arranged on the above-mentioned work done cavity inwall, the arc length of its connectivity slot is not more than 160 ° (referring to Fig. 2, Figure 12～Figure 14) from work done cavity Minimum Area counterclockwise direction institute to central angle alpha 4, can be between 120 °～160 °, after the promotion of the outburst combustion gas in work done cavity blade shaft rotor is opened the exhaust connectivity slot, gas after the expansion overflows in the atmosphere through connectivity slot under overbottom pressure, under less back pressure waste gas is totally entered in the atmosphere.

In the above-mentioned rotary air valve cavity is arranged, symmetry has air taking port on cavity body, symmetry air taking port institute is 40～70 ° to central angle alpha 5+ α 6 sums, rotary air valve equates with axle gyrator angular velocity, the air inlet connectivity slot that communicates with air taking port is arranged (referring to Fig. 7 on work done cavity, Fig. 8), the shared central angle sum of twice symmetry air taking port equals the sheet leaf turns over suction port formation firing chamber in work done cavity angle on the rotary air valve, when the air taking port of rotary air valve goes to work done cavity suction port and air inlet connectivity slot when opening, mixed gas is compressed into the firing chamber, produce bidirection air intake, and then minimizing intake resistance, save many reciprocating parts of the distribution device on the existing reciprocating piston machine and made complicated camshaft, simplified mechanism, when rotary air valve is closed, plug ignition in the work done cavity, the outburst combustion gas promotes blade shaft rotor rotation work done, its thrust is along the tangent direction of circle, forever perpendicular to the center of circle.

Above-mentioned axle gyrator is made up of preceding spindle nose, intermediate journal, the back spindle nose of concentric, adopting coupling fastening is three fulcrum solid of rotation (referring to Fig. 4), the structural rigidity, the technology capability that help whole axle gyrator, turning effort power is evenly distributed, improve functional reliability, long service life.

Radially sheet leaf on the above-mentioned axle gyrator that is arranged in air distribution cavity, work done cavity is respectively two (referring to Fig. 2, Figure 10～Figure 14).

Also has the fire signal dish that rotates simultaneously with rotary air valve in the above-mentioned non-contact electronic ignition system, centrifugal ignition advancer, have two bars grooves in 180 ° of symmetries of fire signal dish periphery, hollow sting one end can move along fire signal dish circumference, be contained on the fixed support with hollow sting the other end all-in-one-piece hollow shaft and concentric with the fire signal dish, sensing head is loaded on hollow sting and is positioned on signal panel one end, at the hollow shaft the other end vacuum advancer is housed, be connected to draw outside the casing in the cavity of lead on hollow sting and hollow shaft on the sensing head and be connected (referring to Figure 14 with the electronic ignition element, Figure 15), hollow sting and hollow shaft are driven to move with commercially available centrifugal ignition advancer along the periphery of fire signal dish by commercially available vacuum advancer realizes premature ignition, make motor of the present invention be in optimum igniting constantly, complete machine is only used a spark plug, the employed distributor of prior art is not set, thereby simplified the ignition system structure, improved reliability and oil-saving rate.

During the utility model work, sheet leaf in the air distribution cavity produces transfiguration in air distribution cavity, suck working mixture, when the sheet leaf of symmetry plane compresses the mixed gas that has sucked when next breathing process begins, the gas-entered passageway of compressed mixed gas separate space in air taking port enters is to the rotary air valve cavity, enter or stop to enter work done cavity through the switching of the rotary air valve suction port by work done cavity, when the sheet leaf in the air distribution cavity is compressed to when opening air taking port (compression end), rotary air valve is promptly closed, mixed gas no longer enters work done cavity and finishes air inlet and compression process, when rotary air valve is closed, plug ignition, the outburst combustion gas promotes blade shaft rotor rotation work done, and its thrust is along the tangent direction of circle, forever perpendicular to the center of circle.Axle gyrator work done rear panel leaf is rotated further, Exhaust Open, and waste gas is discharged outside the casing by relief opening through the exhaust connectivity slot.From then on can find out that air distribution cavity produces air inlet, compression process, work done cavity produces work done, exhaust process, so the utility model is equivalent to the four-stroke piston inner combustion engine.

Compare with existing explosive motor, the utlity model has following advantage:

1, wankel three-apexed rotor piston engine in the prior art is during work done thrust to 2/3 effective travel, its piston will produce the thrust face opposite with the piston sense of rotation about 1/3, the rotation of obstruction piston has consumed useful work, also is one of unstable idle factor; It is to consume outburst to make power itself and the motion superposition of generation that the KURZ rotary engine is born the reaction thrust piston, its piston is with the rotation of angle speed, thereby generation inertial force, to propose specific (special) requirements to its gear, crank, connecting rod, slider, be subjected to same restriction with the reciprocating piston explosive motor.

Publication number is that CN1051071A's " rotary engine " and notification number is that the general character of C2113349U " vane rotor engine " is single chamber, work done is spaced apart 90 °, outburst work done corner is about 100 °, the impetus time is short, the explosive force that equates, the momentum of acquisition is little, and these two kinds of schemes all must be provided with the spill firing chamber on rotor, thereby maximum when firing the square radius little, exhaust is abundant inadequately.

Define according to the constant force work done: W=FSCOS θ, the reciprocating piston explosive motor has in the situation that maximum explosive force produces: when θ=0 outburst thrust consistent with the piston motion direction, COS θ=1, this time moment arm is zero, inactivity is exported; When θ＜90 °, W=FSCOS θ; When θ=180 °, inertial force is opposite with piston motion direction (bent axle turns to), COS θ=-1, and inertial force hinders bent axle and rotates, and has consumed useful work, and a week produces twice.

The double chamber blade shaft rotor motor of the utility model design, θ=90 °.Sin θ=1, the outburst Driving force is along the tangent direction of circle, forever perpendicular to the center of circle.In addition, the time of thrust application is long, accounts for 160 ° at central angle at least, the energy conversion rate height, and output torque is big, and the oil-saving rate is remarkable;

2, simple in structure, easy to manufacture, cost is low, and volume is little, and is in light weight;

3, exhaust process is long, and little, the dry sound of back pressure is little, exhaust is abundant;

4, adopt the combination coaxial gyrator, no reciprocation mass (except the sheet leaf) helps high-speed rotation;

5, using scope is wide, can be widely used in fields such as industry, agricultural, traffic, national defence.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing

Fig. 1 is the utility model structural representation

Fig. 2 is a sheet leaf work done situation schematic representation in the work done cavity

Fig. 3 is the interior profile schematic representation of work done cavity, air distribution cavity

Fig. 4 is an axle gyrator composite structure schematic representation

Fig. 5 is the rotary air valve structural representation

Fig. 6 is the left view of Fig. 5

Fig. 7 is in opening state and work done cavity suction port mutual alignment figure for rotary air valve.

When Fig. 8 is in closed condition for rotary air valve and work done cavity suction port position view

Fig. 9 sucks the working mixture phase diagram for air distribution cavity

Figure 10 is next breathing process phase diagram for air distribution cavity enters

Figure 11 is in compression phase diagram at the end for air distribution cavity symmetry dough sheet leaf

Figure 12 fires the phase diagram of outbreak merit for spark plug in the work done cavity

Figure 13 is the phase diagram of sheet leaf when being in the igniting work done again for 180 ° of symmetry plane in the rotation in the work done cavity

Figure 14 is exhaust end of a period phase diagram in the work done cavity

Figure 15 is a non-contact electronic ignition system part-structure schematic representation

Figure 16 is the left view of Figure 15

Referring to Fig. 1, the front cover 2 that connects successively through coupling is arranged in the casing 1, contain the work done cavity 5 of suction port 3 and relief opening 4, contain the middle separate space 7 of gas-entered passageway 6, the air distribution cavity 10 of the air taking port 9 that contains suction port 8 and communicate with gas-entered passageway 6 on the middle separate space 7, rear end cover 11.Axle gyrator 12 stretches in the casing 1 and stretches out at it gear 13 is housed on the chassis end.The rotary air valve 14 that communicates with gas-entered passageway 6 on the middle separate space is being housed on the work done cavity 5.The timing gear 15 that the number of teeth that is meshed with the gear of axle on the gyrator equates is housed, so the angular velocity of rotary air valve equates with a gyrator angular velocity on the rotary air valve 14.

Fig. 3 is the inner outline schematic representation of work done cavity and air distribution cavity.In rectangular coordinates system, be the center of circle with the coordinate center O promptly, γ is that radius is made circular arc at 1,2,3 quadrants

, above the Y-axis be with e the center of circle, R be radius below Y-axis with

The tangent circular arc of doing In 1,4 quadrants, be the center of circle again with O, γ be radius do involute section R3 that circle does for basic circle and

1 He

Be connected at 1 quadrant, R=9.5cm, γ=8cm, e=1.5cm, α 1=188 °, α 2=138 °, α 3=34 °,

Also can adopt equidistant helix.

Referring to Fig. 4, the middle axle journal 16 corresponding to middle separate space place in the axle gyrator 12 is a separate structure, adopts centering key 17 to be connected with bolt.Preceding spindle nose 18, back spindle nose 19 adopt bolts 20,21 to be anchored on middle 16 leaf channel openings of axle journal termination.Before spindle nose, middle axle journal, back spindle nose concentric and form three fulcrum solid of rotation.

Referring to Fig. 5, Fig. 6, cavity 22 is arranged on the rotary air valve 14, there is twice air taking port 23,24 to be symmetrical on the valve wall and and communicates with cavity 22, it is 40～70 ° that the twice air taking port is opened pairing central angle alpha 5+ α 6 sums.The angular velocity of rotary air valve equates that with the axle gyrator the shared central angle sum of twice air taking port equals the interior sheet leaf of work done cavity and turns over the angle that suction port forms the firing chamber.

Referring to Fig. 7, Fig. 8, the air inlet connectivity slot 25 that in work done cavity 5, communicates with suction port 3 in addition, minimizing intake resistance, the air inflow that increases.Fig. 7 represents that rotary air valve is in opening state, the air taking port of compressed mixed gas on rotary air valve and the situation that the suction port 3 on the work done cavity 5 and air inlet connectivity slot 25 are two-way when entering the firing chamber, the situation when Fig. 8 represents that rotary air valve is in closed condition.

Referring to Fig. 2, Figure 12-Figure 14, in work done cavity 5, radially slide sheet leaf 26 in the corresponding radial position of a gyrator, two radially slide 26 on sheet leaf is equipped with radial spring 27, has inclined-plane slope angle 28 to play curve transition in the termination of sheet leaf and weakens the effect strong to the chamber wall pressure of sheet leaf with reduction centrifugal force.Work done cavity is provided with the exhaust connectivity slot 29 that communicates with relief opening 4.It is between 120～160 ° that connectivity slot length accounts for central angle alpha 4 from Minimum Area.After outburst combustion gas promotion blade shaft rotor was opened connectivity slot 29, the gas that expanded overflowed in the atmosphere through connectivity slot under overbottom pressure.When going to as shown in Figure 2 Minimum Area, sheet leaf in the work done cavity under less back pressure, waste gas is totally entered in the atmosphere.Fig. 2 represents that rotary air valve closes, and firing chamber 30 forms, and spark plug 32 igniting produce the situation perpendicular to the work done thrust in the center of circle in the non-contact electronic ignition system 31.

Referring to Fig. 9～Figure 11, also be symmetrically arranged with in the air distribution cavity 10 and be loaded on two on the gyrator and radially slide sheet leaf 33, in the shape that radially slides sheet leaf 33 and the work done cavity to radially slide sheet leaf 26 identical.

Referring to Fig. 2, Fig. 9～Figure 19, in air distribution cavity or the rotation of work done cavity axis gyrator, action of centrifugal force makes the sheet leaf along inner outline slippage transfiguration.The feature that combustion chamber volume forms among the present invention is the formed space of angle that sheet leaf clockwise direction in 1 quadrant as shown in Figure 3 turns in the work done cavity, and the size of its compression ratio depends on that the ratio that sheet leaf in this space and the air distribution cavity turns over the admission space of generation is 1: between～26.Present embodiment axis gyrator radius is 6.5cm, and work done cavity, air distribution cavity are axially thick to be 5cm, and so just obtaining the square radius is 0.08M(mean value), discharge capacity is 1.5 liters motor, is equivalent to the reciprocating-piston engine of four cylinders.

Fig. 9-Figure 14 is the utility model four-stroke fundamental diagram.The sheet leaf is distinguished with black and white among the figure, and mixed gas is used Expression, compressed mixed gas is used

Expression, the gas after the expansion is used

Expression, function is made in igniting

Expression.

Referring to Fig. 9, sheet leaf 33 on the axle gyrator in the air distribution cavity 10 is in rotation, air distribution cavity 10 internal volumes increase, suck working mixture from suction port 8, Figure 10, proceed next breathing process after the sheet leaf rotates through 180 °, Figure 11 represents that the sheet leaf in the air distribution cavity compresses the working mixture that has sucked in air-breathing, and the sheet leaf of symmetry plane is in the position that compression ends.

Referring to Figure 12, expression is when the sheet leaf 26 in the work done cavity 5 is in when turning over 30 formation of 40～70 ° of after-burners after opening suction port, rotary air valve 14 is closed, and is lighted the outburst work done by the compressed mixed gas that the two-way air taking port on the rotary air valve 23,24 enters by spark plug 32.During Figure 13 represents to rotate the sheet leaf 26 of symmetry plane through 180 ° be in again the igniting work done in.Figure 14 represents that the gas that will expand in the below of sheet leaf is discharged through relief opening when lighting a fire the work done rotation once more, and the sheet leaf of its symmetry plane is in through the zonule emptying.

Referring to Figure 15,16, be contained in the fire signal dish 34 on the timing gear 15, commercially available centrifugal ignition advancer 35 in the non-contact electronic ignition system 31 in addition, have two bars grooves 36 in 180 ° of symmetries of fire signal dish 34 peripheries, hollow sting 37 1 ends can move along the signal panel circumference, are contained on the fixed support 39 with hollow sting 37 the other end all-in-one-piece hollow shafts 38 and concentric with signal panel 34.Sensing head 40 is loaded on hollow sting 37 1 ends, at the hollow shaft the other end commercially available vacuum advancer 41 is housed.Two leads one are terminated on the sensing head 40 and the other end passes hollow sting is connected with spark coil 42 with commercially available switch amplifier element with hollow shaft.Hollow sting and hollow shaft are driven to move with centrifugal ignition advancer 35 along the periphery of signal panel by vacuum advancer 41 realizes premature ignition, makes motor of the present invention be in optimum igniting constantly.

Claims (9)

1, double chamber blade shaft rotor IC engine, comprise casing (1), be contained in the axle gyrator (12) on the casing (1), it is characterized in that described casing (1) is provided with the air distribution cavity (10) that contains suction port (8), air taking port (9), the work done cavity (5) that contains suction port (3), relief opening (4), the rotary air valve (14) that communicates with air distribution cavity (10), work done cavity (5) respectively, the inner outline of air distribution cavity (10), work done cavity (5) are respectively the circular arc of 1＞180 ° of γ, central angle alpha by radius

With radius be the circular arc of 2＞90 ° of R, central angle alpha

With two ends respectively with circular arc

,

The slick and sly curved section R3 that connects forms, R＞γ, curved section R3 institute is to 2=360 ° of central angle alpha 3+ α 1+ α, have respectively on air distribution cavity (10), work done cavity (5) relevant position along axle gyrator (12) radially slide at least two sheet leaf (33,26) radially being positioned on the axle gyrator (12), be provided with in the described motor and contain the non-contact electronic ignition system (31) that is loaded on the spark plug (32) on the relevant position, firing chamber (30) that is positioned at work done cavity (5) on the casing (1).

2, double chamber blade shaft rotor IC engine as claimed in claim 1, it is characterized in that being arranged on the described casing (1) separate space (7) that contains gas-entered passageway (6) arranged between work done cavity (5) and air distribution cavity (10), rotary air valve (14) can with middle separate space (7) on gas-entered passageway (6) communicate.

3, double chamber blade shaft rotor IC engine as claimed in claim 1 is characterized in that described curved section R3 is the involute section.

4, double chamber blade shaft rotor IC engine as claimed in claim 1 is characterized in that described circular arc

,

With curved section R3 right central angle alpha 1=188 °, α 2=138 °, α 3=34 °.

5, double chamber blade shaft rotor IC engine as claimed in claim 1, it is characterized in that having on described work done cavity (5) inwall and exhaust connectivity slot (29) that relief opening (4) communicates, the arc length of its exhaust connectivity slot (29) is not more than 160 ° from work done cavity (5) Minimum Area counterclockwise direction to central angle alpha 4.

6, double chamber blade shaft rotor IC engine as claimed in claim 1, it is characterized in that cavity (22) is arranged in the described rotary air valve (14), symmetry has air taking port (23,24) on cavity body, symmetry air taking port (23,24) institute is 40～70 ° to central angle alpha 5+ α 6 sums, rotary air valve (14) and axle gyrator (12) angular velocity equate that the air inlet connectivity slot (25) that communicates with suction port (3) is arranged on work done cavity (5).

7, double chamber blade shaft rotor IC engine as claimed in claim 1 is characterized in that described axle gyrator (12) is made up of preceding spindle nose (18), middle axle journal (16), back spindle nose (19), and adopting coupling fastening is three fulcrum solid of rotation.

8, double chamber blade shaft rotor IC engine as claimed in claim 1 is characterized in that the described radially sheet leaf (33,26) of axle on the gyrator that is arranged in air distribution cavity (10), work done cavity (5) is respectively two.

9, double chamber blade shaft rotor IC engine as claimed in claim 1, it is characterized in that in the described non-contact electronic ignition system (31) also having and fire signal dish (34) that rotary air valve (14) rotates simultaneously, centrifugal ignition advancer (35), have two bars grooves (36) in 180 ° of symmetries of fire signal dish (34) periphery, hollow sting (37) one ends can move along fire signal dish (34) periphery, be contained in hollow sting (37) the other end all-in-one-piece hollow shaft (38) that fixed support (39) is gone up and concentric with fire signal dish (34), sensing head (40) is loaded on hollow sting (37) and is positioned on fire signal dish (34) one ends, at hollow shaft (38) the other end vacuum advancer (41) is housed, is connected to draw outside the casing (1) in the cavity of lead on hollow sting (37) and hollow shaft (38) on the sensing head (40) and is connected with the electronic ignition element.

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