CN2883693Y

CN2883693Y - Rotary I.C. engine

Info

Publication number: CN2883693Y
Application number: CNU2005201078230U
Authority: CN
Inventors: 庞乐钧
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-01
Filing date: 2005-06-01
Publication date: 2007-03-28
Anticipated expiration: 2015-06-01

Abstract

The utility model discloses a rotary internal-combustion engine, comprising a circular sectioned cylinder composed of two same semicircular sectioned circular cylinders; wherein, two rotors are arranged on the cylinder, and four pistons equipped with piston rings which are similar to the reciprocal internal-combustion engine are arranged on the rotors. Two rotor shafts are fixed on the two rotors respectively in vertical. A non-circle gear similar to ellipse-shaped gear is arranged on each of the two rotor shafts. The non-circle gears are meshed with two eccentric gears arranged on the same power output shaft in an opposite direction. Every period the rotor is rotated, namely doing work four times, which equals to the amount doing work which is a reciprocal four-stroke eight-cylinder internal-combustion engine crankshaft is rotated a period. The rotary internal-combustion engine has no air valve or crankshaft link mechanism, but is equipped with a plurality of spark plugs or nozzles and inlets and outlets, and can combine groups of cylinder bodies. Compared with the prior reciprocal eight-cylinder internal-combustion engine, the utility model has parts less than over 60%, and the weight, volume and manufacturing cost are decreased by more than 40%.

Description

Rotary combustion engine

Technical field

The utility model relates to a kind of internal-combustion engine, particularly relates to a kind of rotary combustion engine.

Background technique

Existing reciprocating type two-stroke internal-combustion engine fuel consumption is big, the thermal efficiency is low, pollution is big.Quartastroke engine air inlet and exhaust valve system complex, wasted work are big, piston, piston ring and cylinder body are in the side Frotteurism all the time, make cylinder body lose circle easily, increase friction and increased the difficulty of the loss and the sealing of power, but also because of being subjected to the influence of firing chamber cylinder top bit area, can not make the too big too much of air inlet and exhaust valve setting, it is too many that spark plug and oil nozzle can not be provided with, thereby the performance of further raising internal-combustion engine is very restricted.

The to-and-fro motion of their complicated crank linkage mechanisms and piston has simultaneously not only consumed a large amount of power, and because the wearing and tearing that the inertia of its compound movement has strengthened each stressed member dynamic load and bearing, the vibrations of motor have also been increased, having a strong impact on the raising of rotating speed, its mechanical loss power has reached 74%-80% (seeing the composition of 38 pages of chapter 2 first segments of " engine performance develops skill " book mechanical loss).Existing rotary polygonal piston engine is big because of its difficulty of processing, and diaphragm seal (being equivalent to the piston ring on the reciprocating engine) and its lubrication problem and oil consumption and exhaust gas discharging problem are difficult to reach shuttle effect (171 pages of 3.3.2 rotary polygonal piston engines of " extraordinary engine principles and structure " book).

Existing instantaneously variable capacitance angular-difference type rotor engine (application number 00123952, X publication number CN1349038A), it two mutually between the rotor of fork dress and the sealing problem between body be difficult to solve, the principle output power of its two groups of noncircular gears and thumb wheel mechanism is limited or at all can't work done.

Summary of the invention

The purpose of this utility model is a kind of rotary combustion engine that provides for the cylinder piston mechanism that improves existing reciprocating internal combustion engine and distribution device and its crankshaft ﹠ connecting.

The utility model provides a kind of rotary combustion engine, and it comprises fuel supply system, cooling system, lubrication system, ignition system and cylinder piston system etc., it is characterized in that:

This rotary combustion engine comprises that one is that the cross section that semicircular circular cylinder is formed is circular circular cylinder by two identical cross sections, two rotors are installed in cylinder body, four pistons that are similar on the existing reciprocating internal combustion engine are separately fixed on the two ends of two rotors, described piston is an arc, on this piston, following two faces all are solid, on this piston, piston ring is installed, two roots rotor axles are vertically fixed on respectively on two rotors, two similar oval-shaped noncircular gears are installed in respectively on the two roots rotor axles, also be provided with two eccentricity gears, described two eccentricity gears are installed on the same power output shaft in the opposite direction, the girth of described noncircular gear is the twice of described eccentricity gear, two noncircular gears mesh with two eccentricity gears respectively, thereby constitute two gear pairs, two-piston rotates to the position of volume minimum on cylinder, the position that is the outer corner difference minimum is provided with spark plug or oil nozzle, is provided with suction port and relief opening in the corresponding position of spark plug.

The beneficial effect that rotary combustion engine of the present utility model is compared with prior art had is described as follows:

(1) rotary combustion engine of the present utility model does not have special air valve system, so can save certain power.

(2) all novel rotary internal combustion machine rotors of this reality whenever rotate a circle and do work four times, this needs eight cylinder reciprocating four-stroke ic machine crankshafts to rotate the amount of work in a week, that is to say that circular cylinder work done of rotary combustion engine of the present utility model just equals the quartastroke engine of eight cylinders.

(3) owing to do not have complicated heavy crankshaft ﹠ connecting and valve train, the structure of whirler is relatively simply many, part is few, volume is little, in light weight, power per liter is high, weight/power ratio is little, with compare with cylinder diameter eight cylinder four-stroke reciprocating engines, the number of spare parts of whirler characteristic has been lacked more than 60%, weight and volume is approximately also little more than 40%, so simplified manufacturing process greatly and saved manufacture cost.

(4) this whirler does not have the vibration that the reciprocating bad inertia of crankshaft rod system, air valve system and piston causes, the inertia that it produced has all obtained good utilization, under any rotating speed, all can accomplish good balance, so help increasing substantially of rotating speed.

(5) piston of this whirler and cylinder not friction fully, the phenomenon that does not more have piston, piston ring and cylinder body side on the reciprocating engine to rub can not strengthen frictional loss and seal difficulty because of the side friction makes cylinder lose circle because of the side friction; More there is rotary combustion engine piston of the present utility model to have the interface of one to two road piston ring can be arranged on 26 the insides, piston ring joint place on the rotor-end, as shown in Figure 2, thereby can solves the problem of piston ring joint gas leakage.

(6) during each piston motion of this whirler simultaneously making two kinds of merits, expand and exhaust; Air inlet and compression are all finished simultaneously by a piston, shown in Figure 11,12,13, so the friction of piston ring and cylinder body has just lacked 50%, have saved a large amount of power.

(7) rotary combustion engine of the present utility model can be provided with a plurality of portings in the intake and exhaust position, each gross area of suction port and relief opening reaches even greater than the area of cylinder diameter, this will reduce gas exchange loss greatly, improves the air inlet charge, what waste gas was also arranged is faster cleaner, has also saved power simultaneously.

(8),, make the faster more complete of mixture combustion so more convenient suction port is designed to help form the shape of the eddy current of mixture combustion because of rotary combustion engine suction port of the present utility model does not have air valve.

(9) rotary combustion engine of the present utility model can also be provided with a plurality of spark plugs or oil nozzle, makes that flame travel is shorter, velocity of combustion is faster, so also more help lean-burn quick burning The Application of Technology.

(10) rotary combustion engine of the present utility model is all the time a special air inlet of cylinder position and a compression of not heating through combustion gas, so at the bottom of the fresh air temperature of inspiration, density is big, help improving compression ratio, improves combustion efficiency.

(11) rotary combustion engine of the present utility model does not have special firing chamber, so there is not the negative effect that brings because of combustion-chamber deposit.

Description of drawings

Fig. 1 is the side view of rotor;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is that the F of Fig. 4 is to side view;

Fig. 4 is the side view of piston;

Fig. 5 is the plan view of Fig. 4;

Fig. 6 is the plan view of belt cylinder body;

Fig. 7 is the sectional view of the E-E among Fig. 6;

Fig. 8 is the assembling schematic representation of noncircular gear and eccentricity gear and cylinder body;

Fig. 9 be among Fig. 8 M--M to cut-open view of final assembly;

Figure 10 is the assembling of piston and noncircular gear and eccentricity gear and the schematic representation that cuts open local cylinder body;

Figure 11, Figure 12, Figure 13 are piston schematic representation during work done in cylinder.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is done further detailed description.

Rotary combustion engine of the present utility model comprises that one is that the cross section that semicircular belt cylinder 2,12 is formed is circular belt cylinder by two identical cross sections, shown in Fig. 6,7,9.Two identical rotors 4,5 are housed, shown in Fig. 1,2,9 in cylinder body.The two sides of rotor 4,5 and the corresponding position of cylinder body are provided with seal groove 28, and shown in Fig. 2,6,7,9, the seal ring (not shown) is equipped with in seal groove the inside.

Also be provided with four identical pistons 3, shown in Fig. 3,4,5, be separately fixed on the two ends of two rotors 4,5, hole 24 on the piston is contained on the rotor-end, piston pin hole 23 and the piston pin hole 22 on the rotor-end on the piston are concentric, use with reciprocating internal combustion engine on identical wrist pin or bolt.Four pistons 3 are installed on the interior same level of cylinder, shown in Fig. 2,3,4,10,11, be equipped with on the piston with piston ring (not shown) identical on the reciprocating engine, the centre has the interface of one to two road ring can be arranged on 26 the insides, piston ring joint place of rotor-end, as shown in Figure 2.

Piston ring can pass through the lubricating system that rotor shaft, rotor adopt the forced draught discontinuous with lubricated between cylinder body and two rotors, both during piston whereabouts porting the way to pressure be lubricated.Piston can be set to arc, and upper and lower two faces of piston all are solid, shown in Fig. 3,4,5.Also be provided with two roots rotor axles 6,7, be vertically fixed on axis hole 27 the insides of two rotors 4,5 respectively, the noncircular gear 8,9 of two similar ellipses is installed in respectively on the two roots rotor axles 6,7, as Fig. 8, shown in Figure 9.

The schematic representation of local cylinder body is cutd open in the assembling of noncircular gear and eccentricity gear and piston, as shown in figure 10.

Also be provided with a power output shaft 13 in addition, two eccentric gears 10,11 that identical installation direction is opposite be housed, on the output shaft 13 as Fig. 8, shown in Figure 9.Two eccentricity gears 10,11 adopt prior art to carry out counterweigh and handle.Two eccentricity gears 10,11 mesh respectively with two noncircular gears 8,9 and constitute two gear pairs, as Fig. 8, shown in Figure 10.The girth of noncircular gear is the twice of eccentricity gear, and the noncircular gear of eccentricity gear and its conjugation designs with prior art according to specific requirement.

Two bearings 14,15 are housed on the power output shaft 13.On the two roots rotor axles 6,7 four bearings 16,17,18,19 are housed respectively, they are separately fixed on the body, as shown in Figure 9.In addition in the position of outer corner difference minimum between two-piston on the cylinder, promptly the center position hour of the volume between two-piston is provided with spark plug or oil nozzle 25, is provided with suction port 20 and relief opening 21 in the position of spark plug 25 correspondences, as Fig. 8, shown in Figure 11.

Except that above the setting, rotary combustion engine of the present utility model also is provided with fuel supply system, lubrication system, cooling system and ignition system etc., and these systems are identical with existing reciprocating internal combustion engine basically.

The work done principle of rotary combustion engine of the present utility model is such: thus to be effect with two noncircular gears and two eccentricity gear outer corner differences change by the volume between the rotating speed official post piston of two rotors finishes air inlet, the work done program that compression, burning expansion, exhaust one link up for it.

Its program as shown in figure 11, inflammable gas has compressed and has finished between this moment piston A, B, begin the work done of lighting a fire, this moment, same epitrochanterian piston B and D quickened to rotate by doing clockwise, and the noncircular gear on the same roots rotor axle by eccentricity gear to the torque of power output shaft also in gradually quick increase.Eccentricity gear by rotor shaft and noncircular gear and at the uniform velocity rotation is by the power output shaft output power simultaneously; Same epitrochanterian piston A and C rotate by doing clockwise to slow down, and the noncircular gear on the same roots rotor axle also reduces the torque on the power output shaft gradually by eccentricity gear.Compress air inlet between D, C, exhaust between B, C between piston A, D simultaneously.

When each piston went to as Figure 12, piston A and C were the slowest, and B and D are the fastest, the speed difference of two rotors is than maximum too, this moment noncircular gear and the residing situation of eccentricity gear as shown in Figure 8, noncircular gear 8 and piston B, D are coaxial among the figure, noncircular gear 9 and piston A, C are coaxial.This moment, piston B was also maximum by the torque that noncircular gear 8 and 10 pairs of power output shafts of eccentricity gear produce, and this moment, piston A and C began to quicken, and B and D reduce speed now.

When piston goes to as Figure 13, finish expansion working between piston A, B one time, finish once compression between A, D, finish an air inlet between D, C, finish an exhaust between B, C, this moment, each piston space was finished an exhaust, air inlet, compression, burning work done process simultaneously.Like this, when piston whenever rotates a circle, as shown in figure 11, when piston A goes to same position again, finish four work done circulations altogether, this needs four-stroke eight cylinder IC engine bent axles to rotate the circulation of doing in a week.

Speed difference at the preferred range inner carrier is better more than big more its performance, and it is by the design decision of eccentricity gear and noncircular gear, also can strengthen by the way that changes and increase noncircular gear and eccentricity gear group differential than and improve service behaviour.Can also make up with many groups cylinder body and supporting with it transmission shaft and gear, so that bigger power output to be provided.

Structure of the present utility model can be provided with two or more portings, to reduce gas exchange loss, improves the air inlet charge.Two or more spark plugs or oil nozzle can also be set, so that the combustible gas burning is faster, more complete.

Claims

1, a kind of rotary combustion engine, it comprises fuel supply system, cooling system, lubrication system, ignition system and cylinder piston system etc., it is characterized in that:

This rotary combustion engine comprises that one is semicircular circular cylinder (2 by two identical cross sections, 12) cross section of Zu Chenging is circular circular cylinder, two rotors (4 are installed in cylinder body, 5), four pistons (3) that are similar on the existing reciprocating internal combustion engine are separately fixed at two rotors (4,5) on the two ends, described piston (3) is an arc, on this piston, following two faces all are solid, on this piston, piston ring is installed, two roots rotor axles (6,7) be vertically fixed on two rotors (4 respectively, 5) on, two similar oval-shaped noncircular gears (8,9) be installed in two roots rotor axles (6 respectively, 7) on, also be provided with two eccentricity gears (10,11), described two eccentricity gears (10,11) be installed in the opposite direction on the same power output shaft (13), described noncircular gear (8,9) girth is the twice of described eccentricity gear (10,11), two noncircular gears (8,9) respectively with two eccentricity gears (10,11) engagement, thus constitute two gear pairs, and two-piston rotates to the position of volume minimum on cylinder, the position that is the outer corner difference minimum is provided with spark plug or oil nozzle (25), is provided with suction port (20) and relief opening (21) in the corresponding position of spark plug.

2, rotary combustion engine as claimed in claim 1 is characterized in that: be provided with two or more spark plugs or oil nozzle.

3, rotary combustion engine as claimed in claim 1 is characterized in that: be provided with two or more suction ports and relief opening.

4, rotary combustion engine as claimed in claim 1 is characterized in that: described piston (3) can be arranged on the interface of middle one to two road piston ring the inside at the piston ring joint place (26) on the rotor-end.

5, rotary combustion engine as claimed in claim 1 is characterized in that: described internal-combustion engine can improve service behaviour by the way that changes and increase noncircular gear and eccentricity gear group.

6, rotary combustion engine as claimed in claim 1 is characterized in that: described internal-combustion engine can make up with many groups cylinder body and supporting with it transmission shaft and gear, with the bigger power of output.