CN1006319B - Rotary piston engine with ring cylinder - Google Patents

Abstract

The present invention relates to a differential rotary-piston internal-combustion engine whose cylinder is fixed and seal lines are continuous. A hollow cylindrical case with a radial sealing component and an end surface seal components is arranged at the centre of the short barrel-shaped cylinder. Four pistons with handles extend from the case and are reamed at an energy dissipating sleeve, and the pistons divide the cylinder into four work chambers. Four eccentric shafts which are installed at the case and rotate around a stationary gear are respectively connected with the handles of the pistons via connecting rods, and the gear of the eccentric shaft passes torque to a main shaft. The case breaks out four or eight times per revolution, the machine has decelerating effect and is especially suitable for situation of reducing the speed, and other uses are the same with an ordinary internal-combustion engine.

Description

Rotary piston engine with ring cylinder

The present invention is a kind of differential rotary piston engine.

Be reciprocating piston type now with motor, complex structure, weight/power ratio is big.The rate of fuel consumption height, power per liter is low.Though some the differential speed type motors in the development can address these problems both at home and abroad, cause gas leakage owing to potted line is discontinuous; Have for making potted line continuously have to allow the cylinder block rotation, this all brings certain influence to use, adjustment and performance, fails practical application.

Task of the present invention is to make a kind of internal-combustion engine that can overcome above-mentioned shortcoming.It is simple in structure, and potted line is continuous, and power per liter is big, and rate of fuel consumption is low, and volume is little in light weight.

Above-mentioned task is achieved by the following technical solution (referring to Fig. 1 to Fig. 6).Motor mainly is made up of cylinder body 1, cylinder cap 2, piston 3, casing 4, main shaft 10, connecting rod 11, eccentric shaft 18, planetary pinion 20, fixed gear 21 etc.Cylinder body is short cylinder shape, and tangent exhaust outlet is arranged, and spark plug is housed.The cylinder body two ends are cylinder cap, and an end cylinder cap has suction port, and an end cylinder cap has gas-entered passageway.Casing is the cylindrical hollow part, is positioned at cylinder body central authorities, and it is circular that cylinder is formed.Four pistons place in the circular cylinder, constitute four working rooms, the cylinder of the suitable two-stroke conventional engines in each working room.Is sliding bearing in the middle of the casing, in have main shaft 10 to pass through.The casing two ends have four to (or two pairs) rolling bearing, four (or two) being installed respectively with the eccentric shaft 18 of four (or two) cylindrical gearss, and link block 5 and end face seal bar 6 are arranged.Apex seal 7 is arranged on the casing cylndrical surface, and uniform four oblong openings that stud with oil seal ring 19.Piston fuses with a handle 8 that rotates around main shaft separately, and handle 8 is swung in above-mentioned oblong openings in rotation.Mixed gas is from the suction port on the cylinder cap, after the cooling vent 9 on the piston, gas-entered passageway on the other end cylinder cap enter cylinder, finish a thermodynamic cycle, and the tangent exhaust outlet on cylinder body is discharged again.The major part of piston handle 8 is loaded on the power that the disappears sleeve 16 that is enclosed within on the main shaft, and this sleeve is used to eliminate the centrifugal force that piston assembly acts on main shaft.Connecting rod 11 1 ends connect with the bearing pin 17 of piston centre, and the other end connects with the eccentric journal of eccentric shaft 18.Two (or one) planetary pinions 20 of eccentric shaft outer end mesh and are arranged symmetrically in around this fixed gear with fixed gear 21, and control piston is done differential motion.2(casing revolution work 4 times) or 1 the gear ratio of planetary pinion and fixed gear is 1:: 4(casing revolution work 8 times); Respective gears engagement on middle two (or one) cylindrical gearss of eccentric shaft and the main shaft outputs power.By changing mainshaft gear and the eccentric shaft gear ratio of grinding tooth wheel mutually, can change the velocity ratio of casing (also being piston) and main shaft.

Main feature of the present invention is: be mounted with a cylindrical hollow casing around main shaft in cylinder body, its sidewall and cylinder body surround a circular cylinder jointly, described piston is placed in this circular cylinder, handle, eccentric shaft, bar linkage structure is placed in the casing and with casing and rotates, on casing sidewall, be evenly distributed with four oblong openings that oil seal ring 19 is housed corresponding to the piston mounting point, handle 8 passes this and is opened on piston and links to each other and can swing therein, two link blocks 5 are equipped with in the position that the casing end face is positioned at the both sides, firing chamber, respectively carry diaphragm seal 7, end face seal bar 6 is housed between two link blocks, described piston inner side surface posts sealing plate 12 and two sealing angle beads 13, springs 14 is housed in the middle of two Stamping Steel Ribbons, Stamping Steel Ribbon 15 is equipped with at the piston two ends, above-mentioned Stamping Steel Ribbon, sheet, plate constitutes the continuous potted line of cross section for " protruding " font jointly.

Working principle of the present invention is: four pistons are divided into four working rooms with cylinder, each piston connects an eccentric shaft by connecting rod, when adjacent two off-centre away from the time swept volume increase, realize air inlet or expansion, when adjacent two off-centre are close, realize compression or exhaust.Piston is swung in rotation, and in the swing process, the apex seal of casing slides on the sealing plate of piston, and they constitute continuous seal line all the time with the Stamping Steel Ribbon of piston crown and the Sealing of casing end face.Piston drives eccentric shaft and rotates the work of whenever circling (igniting) 4 times (gear ratio is) around fixed gear at 1: 2 o'clock.The size that how much depends on planetary pinion and fixed gear gear ratio of igniting number of times.The amplitude of moment of torsion increase and decrease depends on mainshaft gear and the eccentric shaft size of grinding tooth gear ratio mutually.

Major advantage of the present invention is: compare with Reciprocating engine, it is simple in structure, no valve mechanism, and weight/power ratio is light, and power per liter is big, and rate of fuel consumption is low; Compare with general differential speed type motor, its cylinder body maintains static, and potted line is continuous all the time; In addition, it also has to slow down and increases torsion effect (but also speedup).

Fig. 1 is the transverse view of basic structure.Fig. 2 is " convex shape potted line " schematic representation.Part 1,15 in addition, 12(13), 7,5,6 constitute and continuous all the time " convex shape potted line " in movement process jointly.

Fig. 3 is the piston set of a band handle.

Fig. 4 is the power sleeve that disappears.

Fig. 5 is that the A-A of Fig. 2 is to amplification.

Fig. 6 is the part of casing, shows the oblong aperture and the apex seal that have the machine oil seal ring.

Fig. 7 is vertical schematic representation of basic structure.

Fig. 8 is based on a kind of variant machine scheme of same design.It is applicable to the occasion that need not reduction of speed (or speedup).Its major character is not have gear on the main shaft, and eccentric shaft does not have corresponding power transmission gear yet.Main shaft is connected with casing by key (or pin).The gaseous-pressure that piston bears drives eccentric shaft around fixed gear revolution or rotation by connecting rod, and the eccentric shaft main journal is installed in the certain radius place of casing in uniform way, so can pass to main shaft to power by casing, power is exported.

Fig. 9 is based on the another variant machine scheme of same inventive concept.Its major character is that casing is installed on the cylinder body rather than on the main shaft, four planetary pinions 20 on four eccentric shafts mesh with the fixed gear in the middle of casing 4 21.Four eccentric diameters of axle (can pass through slide block) slide in the groove 22 of four piston handles (also can connect piston handle and eccentric shaft by connecting rod).

The component names in addition that each numbering is represented in each figure is consistent.

The principle of each system of engine is identical with the principle of triangle rotary engine system basically.

The same ordinary internal combustion engine of purposes of the present invention, but the occasion that the basic scheme particularly suitable slows down in needs, such as helicopter, naval vessel and some engineering machinery, this can save decelerator.

Claims (2)

1, a kind of ring cylinder and rotary piston motor, by the short cylinder shape cylinder body 1 that has tangential gas port, four pistons 3 that are loaded in the cylinder body constitute, the cylinder body center is mounted with a main shaft 10, on cylinder body, one fixed gear 21 is arranged around main shaft, piston fuses with a handle 8 that rotates around main shaft separately, this handle is connected on the eccentric shaft 18 of a planet gear 20 by bearing pin 17 separately by connecting rod 11, planet wheel 20 meshes and is arranged symmetrically in around the said fixing gear with fixed gear 21, the piston of control band handle is done differential motion, it is characterized in that, in cylinder body, be mounted with a cylindrical hollow casing around main shaft, its sidewall and cylinder body surround a circular cylinder jointly, described piston is placed in this circular cylinder, handle, eccentric shaft, bar linkage structure is placed in the casing and with casing and rotates, on casing inwall, be evenly distributed with four oblong openings that oil seal ring 19 is housed corresponding to piston, handle 8 passes this opening and is connected with piston and can swings therein, two link blocks 5 are equipped with in the position that the casing end face is positioned at the both sides, firing chamber, respectively carry apex seal 7, end face seal bar 6 is housed between two link blocks, described piston inner side surface posts sealing plate 12 and two sealing angle beads 13, springs 14 is housed between two Stamping Steel Ribbons, Stamping Steel Ribbon 15 is equipped with at the piston two ends, above-mentioned diaphragm seal, bar, plate constitutes the continuous potted line of cross section for " protruding " font jointly.

2, according to a kind of ring cylinder and rotary piston motor of claim 1, it is characterized in that: described eccentric shaft around the fixed gear rotation, except that be equipped with planetary pinion that this fixing tooth is meshed, deceleration (or speedup) gear that is meshed with power transmission gear on the main shaft also is housed, and main shaft passes through in the bearing of the two end cap central authorities of casing.

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