CN102877935A

CN102877935A - Three-stroke sliding vane type rotary engine

Info

Publication number: CN102877935A
Application number: CN2012104289914A
Authority: CN
Inventors: 王福成
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-01
Filing date: 2012-11-01
Publication date: 2013-01-16

Abstract

The invention discloses a three-stroke sliding vane type rotary engine. The characteristic of the three-stroke sliding vane type rotary engine is to abandon the old working pattern of absorbing pressure and discharging by an internal combustion engine in the past; a brand-new working cycle only includes three strokes which are air exchange, compression and acting respectively. The engine effectively overcomes the shortcomings of the existing common two-stroke and four-stroke engines and a wankel engine, such as low mechanical efficiency, large dynamic differential vibration, large noise, short service life, large size, heavy weight, more spare parts, high cost, and high technique requirement, so that the effective utilization rate of the fuel is effectively improved. The dynamic balance of the rotor piston is good and the operation is stable. The three-stroke sliding vane type rotary engine is not provided with an air distribution system, so that problems of complex valve timing and valve route of the distribution structure and vibration noise are radically solved; as integrating advantages of various engines into one, the three-stroke sliding vane type rotary engine is a typical environment-friendly engine with small size, high efficiency, and low oil consumption; under the situation that the world today faces the energy crisis, the three-stroke sliding vane type rotary engine is a power device capable of saving energy source quite effectively to replace replace the existing common engine.

Description

Three stroke sliding blade formula rotary engine

Technical field

The invention belongs to technical field of internal combustion engines, relate to a kind of rotary engine, especially sliding rotary engine.It is characterized in that engine operational cycle only has the rotary engine of three strokes, more particularly is three stroke sliding blade formula rotary engine of a kind of complete machine machine and part brand-new design.

Background technique

Existing conventional common civilian military power unit automobile-used peculiar to vessel mainly is as main take reciprocating piston type four-stroke and two-cycle engine.Next also has a kind of well-known Wankel RC configuration to claim again miller cycle engine and the four-stroke sliding blade formula rotary engine of volume production not yet, although they improve so far through technological improvement for many years, appoint so to exist various defectives and fail to solve, roughly be summarized as follows: 1. Wankel engine: the life-span is short, oil consumption is high, sealing is difficult, during the slow-speed of revolution little, the spark clearance of moment of torsion leap up gas, fuel combustion travel of flame propagation length is long, thermal loss is large, energy conversion efficiency is low; 2. reciprocating piston type two-cycle engine: tail gas pollution is serious, oil consumption is high, working life is short; 3. multiple piston four stroke engine: the air gate distribution complex structure, the many costs of part are large, the discontinuous noise of intake and exhaust large, crankshaft-link rod inertia shakes very difficult balance, the huger heaviness of volume; 4. although four-stroke sliding blade formula rotary engine does not have complicated cam valve train and connecting rod to efficiently solve problems such as having shaken noise, but because oval cylinder is adopted in four stroke cycle work, the rotor radial groove sealing blade that rotates a circle in cylinder slides up and down 2 times, and the aggravation of rotor radial groove sealing blade sliding frequency galling is short working life.

Above motor also have a common shortcoming be exactly air inlet deficiency, exhaust not to the utmost, the fuel effective rate of utilization is low, the fuel availability of common petrol engine diesel engine all is no more than 40%, 60% energy is all by the heat of tail gas, mechanical friction, and the serial reason such as incomplete combustion consumes.

Summary of the invention

The many places deficiency that the object of the invention exists in order to overcome above-mentioned internal-combustion engine commonly used keeps its advantage, has proposed a kind of energy-efficient three stroke sliding blade formula rotary engine that integrate multiple advantage through repeatedly improving the brand-new design of learning from other's strong points to offset one's weaknesses.

No matter reciprocating piston type four stroke engine or Wankel engine rotary engine work cycle is four-stroke, this light just is not difficult to distinguish from title, it is the stroke of acting that four strokes of four stroke engine in the past only have a stroke, other three strokes are all served for this expansion stroke, the reciprocating piston type four stroke engine is exactly most typical example, 720 ° of crankshaft rotating are namely finished a work cycle 2 weeks, the angle of wherein doing work only has 180 °, acting angle ratio only accounts for 25% of whole circulation, and the rotation of other three strokes 75% all is to serve for this expansion stroke of 25%.And some meeting of the energy that 25% expansion stroke produces be consumed by the rotation of other three strokes 75%.The motor that has proposed a kind of brand-new mode of operation in order to reduce these three unnecessary energy losses of stroke of the air-breathing compression of exhaust is three stroke work cycle motors.That is to say the exhaust stroke of quartastroke engine and aspirating stroke be concentrated in the stroke and carry out synchronously, change the ventilation stroke into, three strokes of three stroke sliding blade formula rotary engine are respectively: ventilation, compression, acting.

And 360 ° of a plurality of firing chambers of peritrochanteric of three stroke sliding blade formula rotary engine rotor one all motors continuous circulation acting of brand-new mode of operation, for single firing chamber 360 ° of actings of three stroke sliding blade formula rotary engine rotors once, the acting frequency is that 2 times of the reciprocating piston four stroke engine and acting angle maximum can reach 180 ° of acting angle ratios and account for 50%.The energy consumption that same acting has once but reduced the machine operation of a circle has also reduced by a mechanical wear of enclosing simultaneously, has increased the life-span of motor.

Description of drawings

Figure of abstract

Figure of description Fig. 1: engine structure front view

Figure of description Fig. 2: engine structure right elevation

Figure of description Fig. 3: firing chamber spark plug oil nozzle Local map

Figure of description Fig. 4: ventilation stroke air off gas exchange principle schematic diagram

Accompanying drawing part symbol note: 1. 13. end caps, 14. waste gas air outlets, sparking-plug electrode seat 2. oil nozzle 3. sparking-plug electrodes, 4. cooling water channel 5. end cap fixed bolt holes, 6. cylinder body 7. blades, 8. air inlet 9. rotor bodys, 10. rotor main shaft bearing 11. rotor main shafts, 12. firing chambers, 15. air-strainer 16. are forced air inlet system 17. bafflers

Embodiment

Three stroke sliding blade formula rotary engine mainly contain following part and form shown in Figure of description: air inlet system assembly, rotor assembly, stator assembly, engine signal collection control assembly form.Rotor assembly is by rotor body 9, blade 7, rotor main shaft 11 consists of, there are a plurality of radial groove blades 7 can in groove, be free to slide by spring supporting on the rotor body, blade 7 cuts open rotor 9 average marks with stator combination and forms the evenly relatively independent again firing chamber 12 of sealing of a plurality of sizes, the volume of rotor firing chamber continuously changes when engine operation, blade 7 is free to slide the sealing that cooperates cylinder block to finish each independent combustion chamber in epitrochanterian radial groove, there is the space between concave shape and the cylinder wall to form the firing chamber on the rotor between every adjacent 2 blades, sparking-plug electrode 3 (centre electrode that is equivalent to conventional ignition plug) is installed in the middle of the firing chamber; Stator assembly comprises cylinder 6 and the cylinder left and right sides end cap 13 of closed circle arc, main shaft bearing 10 is housed on the left and right sides end cap 13, cooling water channel 4 is arranged in the cylinder wall, sparking-plug electrode seat 1 (lateral electrode that is equivalent to conventional ignition plug) and oil nozzle 2 are housed, sparking-plug electrode seat 1 and oil nozzle 2 and the cylinder inner wall concordant installation in surface on the cylinder wall.Rotor main shaft in bearing off-centre is installed in the cylinder stator on the left and right end cap, left and right sides end cap two survey have suction port be used for fresh air with relief opening and discard between exchange.Between stator rotor and the blade seal arrangement is arranged.Engine signal collection control assembly is made of sensor and ECU.

Three stroke sliding blade formula rotary engine working principles

When starting drive drives motor, rotor (9) beginning is rotated (shown in Figure 1 such as Figure of description) around rotor main shaft (11) counterclockwise, force simultaneously air inlet system (15) to be started working and constantly compress into fresh air from engine intake (8), when rotor rotates each firing chamber can be successively through the suction port (8) of motor and relief opening (14) such as 12 positions of Figure of description hour hands shown in Figure 1, when firing chamber during through the suction port (8) of motor and relief opening (14), the space of each firing chamber (12) can be successively not section compressed into ozone from suction port (7) and filled, the fresh air that the waste gas of while firing chamber (12) is pressed into is extruded from relief opening (14), finish the ventilation stroke, gas exchange process air and waste gas flow direction is such as (Figure of description Fig. 2) and (Figure of description is shown in Figure 4).Rotor (9) continues to rotate around rotor main shaft (11) and enters compression stroke, and firing chamber (12) forward approximately 6 positions of clock to, until the combustion chamber volume compression variation finishes to hour compression stroke.Oil nozzle (2) sprayed into the high pressure pulverized fuel in advance in the firing chamber before compression stroke finishes, at this moment the sparking-plug electrode (3) that is installed in firing chamber (12) has approached the sparking-plug electrode seat (1) that is installed on the cylinder body (6) and has reached suitable ignition angle and state detail such as (Figure of description is shown in Figure 3), and then electrion igniting between sparking-plug electrode (3) and the sparking-plug electrode seat (1), concrete advance angle of injection degree and ignition angle are by the different operating conditions of ECU according to motor.Plug ignition, the inflammable mixture of lighting burns rapidly and produces the combustion gas of High Temperature High Pressure, this moment, expansion stroke began, the effect that the firing chamber is subject to the high-temperature high-pressure fuel gas expansive force makes rotor be subject to continuously variation and an equidirectional rotating force, make rotor accelerate the rotation acting, the bags is gradually continuous to become large continuously, until maximum, expansion stroke finishes during about 12 positions of hour hands.Rotor this moment rotating 360 degrees, this firing chamber continues will to repeat to enter the ventilation stroke again below the rotation, because peritrochanteric has a plurality of firing chambers, at this moment next firing chamber has also begun acting, do not need the rotating speed of help motor of external force and the normal operation that inertia has been enough to keep self, motor is so stable acting of repetitive cycling continuously.Because motor does not have gas distribution system, compress into fresh air by mechanical forced and extrude simultaneously the problem that waste gas has fundamentally solved valve timing and valve stroke, and saved air-breathing and 2 strokes of exhaust, become the ventilation stroke.So be referred to as three-stroke engine.

Comprehensively the above is relatively having following plurality of advantages with other motor with discharge capacity:

Compare the wearing and tearing that reduce engine running sliding friction area and distance, reduced motor with reciprocating piston type four-stroke multi-cylinder engine, increased motor working application time ratio, the time that has reduced radiation loss, heat diffusion area and heat-dissipating distance.

The ratio of the compression and expansion of three stroke sliding blade formula rotary engine motivations is flexible design as required.

The pressure of tail gas brings resistance can for the running of motor, and the energy of High Temperature High Pressure tail gas can develop preferably, can effectively improve engine efficiency.

Do not have that cam rocker arm gas distribution structure and crankshaft eccentric balance weight mechanism have that operation vibrations are little, noise is little, volume is little, machine part is few, simple and compact for structure, low cost of manufacture, mechanical efficiency is high, oil consumption is low, power per liter is large, reliability is high, the life-span is long, little, lightweight with power lower rotor part motor volume, center of gravity is low.

The transformation of energy utilization ratio is high, 360 ° of continuously uninterrupted overlapping actings of a plurality of firing chambers, and uniform and stable, the good dynamic balance of load output operates steadily, and dynamic response is fast, and the little noise of operation vibrations is little.Can satisfy the power plant of ship requirement, be particularly suitable for doing the power plant of sport car, this conventional engine can only solve by increasing number of cylinders.

Because between each firing chamber certain pressure is arranged, adjacent chamber pressure is that cascade increases progressively the variation of successively decreasing, blade two sides partial pressure is cancelled out each other.Can play the each other effect of auxiliary seal of leaf, and greatly reduce the load of blade.

The middle interior recess in each firing chamber is installed sparking-plug electrode on the rotor, has guaranteed that each igniting of each firing chamber is in the optimum igniting position, and the sheet firing chamber of middle interior recess and the formation of stator inner arc surface is conducive to spreading of flame, sufficient combustion.

Three stroke sliding blade formula rotary engine are because what adopt is that the closed circle arc cylinder rotary slide plate that rotates a circle up and down reciprocatingly slides once.And adopt four-stroke sliding blade formula rotary engine rotor one all slide plates of elliptical cylinder up and down reciprocatingly to slide twice, have by contrast that the sliding blade motion frequency is little to only have half of four-stroke sliding blade formula rotary engine.

Air inflow is sufficient, and suction pressure is higher than greatly barometric pressure, and ventilation thoroughly fully, can drain all combustion tail gas

This motor is because cylinder is crossed cylinder wall distal-most end and most proximal end to-and-fro motion once close to whenever rotate a circle each blade 1 time of round rotor rotor, and the four-stroke sliding blade formula rotary engine of the oval cylinder of tool is because be oval cylinder, and rotor whenever rotates a circle each blade 2 times through twice of cylinder wall distal-most end and most proximal end to-and-fro motion.Have by contrast the blade movement frequency little, shake littlely, sliding distance is short, and the life-span is long, because only have three strokes with obtaining the discharge capacity and the power that are more greatly in the volume situation.

Unique blemish in an otherwise perfect thing be exactly that to seal relative conventional engines complicated a little, but in the epoch of this development in science and technology, add that practice and problem are not to be difficult to solve, feasibility is very high, a lot of minor issues are perfect to solve this.Its advantage is far longer than shortcoming by contrast, also does through the adjustment change compression ratio of suitable part and function and can do diesel engine and Alcohol engines, becomes multifuel engine.The world will face energy source machine really at present, and it is on the very important motor of future development impact.

Claims

1. a stroke sliding rotary engine is characterized in that the motor operation finishes a complete work cycle and only have three strokes, is respectively: ventilation stroke, compression stroke, expansion stroke.

2. cylinder mainly is connected to form closed circle arc cylinder by circular arc and the curve closure that seamlessly transits, and covers in the cylinder two side ends and to be provided with porting.

3. during engine running, air inlet system is constantly compressed into fresh air to each through firing chamber of suction port from suction port, simultaneously waste gas is constantly extruded the displacement that realizes ventilation stroke fresh air and waste gas from relief opening.

4. this engine rotor blade that rotates a circle slides up and down once in the radial groove of peritrochanteric.

5. a circle is provided with three at least with upper combustion chamber on rotor of this motor.

6. place's indent in the middle of the epitrochanterian firing chamber, and the fiery device of setting up an office.