CN101975106A

CN101975106A - Rotary piston type internal-combustion engine

Info

Publication number: CN101975106A
Application number: CN2010102103875A
Authority: CN
Inventors: 孟庆达
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-28
Filing date: 2010-06-28
Publication date: 2011-02-16

Abstract

The invention relates to a rotary piston type internal-combustion engine, comprising a cylinder body; wherein the cylinder body is internally provided with a combustion chamber and a working chamber which is communicated with the combustion chamber by virtue of a through hole as well as an energy exchange assembly which is arranged on the cylinder body and is stretched from the combustion chamber to the working chamber, and the working chamber is internally provided with a rotary piston limited by an output shaft. The combustion chamber and the working chamber are separate and are mutually communicated, so that working medium in the combustion chamber can enter into the working chamber according to the preset direction, and a force in the same direction can be generated to do work to the rotary piston, so that the internal-combustion engine in the structure has good economic performance and dynamic performance.

Description

The rotary-piston type explosive motor

Technical field

The present invention relates to a kind of explosive motor, specifically relate to a kind of rotary-piston type explosive motor.

Background technique

The quality of the performance of explosive motor depends primarily on its economic performance and power performance, and wherein, economic performance is that what of certain power time institute consume fuel mean engine produce, and its significant parameter is the thermal efficiency and specific fuel consumption; Power performance is meant the power that explosive motor produces and the size of moment of torsion in conversion process of energy, significant parameter is power and moment of torsion.

Reciprocating internal combustion engine comprises cylinder body and is arranged on the interior reciprocating piston of this cylinder body.The explosive motor work cycle of this kind structure is made up of processes such as air inlet, compression, burning, expansion and exhausts, and in these processes, having only inflation process is the process of externally doing work, and other process is not all done work, but same consumed energy.This shows, above-mentioned reciprocating internal combustion engine, from its economic performance, because of piston in a cycle period, have only 21% stroke to be in the acting state, and have 79% stroke to be in the blocking state of non-acting, so the economic performance of the explosive motor of this kind intermittent type acting is very poor; Simultaneously, because of the piston of straight reciprocating motion when arriving top dead center or lower dead center, still can keep former motion state, want to make piston to change original moving direction, will overcome the power that former moving direction produces at least, and the power of this power and the direction of doing work is opposite, have only and piston is applied enough big power just can make its acting, and applied force comprises and overcoming and acting direction opposite power, is the resistance of resistance acting, and then can influences its economic performance and power performance; In addition, piston does not possess the energy storage condition during doing work, each acting all has fixing tripping force, this tripping force is set at the top dead center in the reciprocating stroke, and top dead center is the minimum angle of crankshaft-link rod vertical central, the position of its resistance maximum is to overcome maximum resistance must apply excessive kinetic energy to piston, and unnecessary kinetic energy can not be recovered utilization, so this also is the Another reason that influences its economic performance and power performance.

No matter rotary-piston type explosive motor of the prior art is internal combustion type, compression-ignited, swing type, or the explosive motor of Mazda triangle body rotor, its rotary-piston all is installed in the firing chamber, the energy that is produced after the fuel combustion is directly acted on the piston, with driven plunger rotation acting.Though the rotary-piston type explosive motor has comparatively ideal economic performance and power performance, but only under quasi-static state, could realize best thermal technology's conversion efficiency owing to participate in the material temperature of acting, piston is directly installed in the firing chamber, because inflammable mixture moment burning, can't make working medium reach maximum temperature simultaneously, the temperature difference of its generation can seriously influence the economic performance and the power performance of explosive motor; Be multidirectional because of the expansive force that working medium produced after the fuel combustion simultaneously, and these expansive forces only are only the power of driven plunger acting along the power of piston tangent direction, the power of other direction can become the counteragent of the power acting that hinders acting, and then influences the economic performance and the power performance of explosive motor; In addition, owing to directly rotary-piston is done work after the fuel combustion, even if come the rotating speed of control piston by the amount of combustion fuel each time, the also non-constant of the performance of its low speed causes the Motor Vehicle that this kind explosive motor is installed not switch to operating condition voluntarily under vehicle stop state, must be by the external force eccentric rotation axis, just can make its starting, so the explosive motor of this low power performance only is applicable to high-revolving Motor Vehicle and supporting use such as goes straight up to that its Applicable scope has certain limitation.Another main problem is, existing rotary-piston type explosive motor also can need to add many appurtenances, and then cause its structure and complex manufacturing technology, the raising of fabricating cost because of problems such as intake and exhaust difficulties except that economic performance and power performance are undesirable.

Summary of the invention

The purpose of this invention is to provide the rotary-piston type explosive motor that a kind of utilization solves the interior mode that can be converted into mechanical energy to greatest extent of working medium problems such as economic performance and power performance be undesirable.

Rotary-piston type explosive motor proposed by the invention comprises cylinder body, the work chamber that in this cylinder body, is provided with the firing chamber and is connected by through hole with the firing chamber, and be installed on the cylinder body and extend to the energy interchange assembly of work chamber from the firing chamber, the rotary-piston that is limited by output shaft is installed in the described work chamber.

Also be provided with in the described cylinder body and allow cooling chamber and the intake tunnel that with cooling chamber be connected and the exhalant canal of cooling water around the outer loop of firing chamber and work chamber.

Described firing chamber is provided with through hole towards the direction of work chamber, and work chamber is provided with the inclination groove that is connected with this through hole, and makes the outer side of this inclination groove and the inwall smooth connection of work chamber.Also be provided with the gas exhaust piping that is used for exhaust emissions in the described work chamber.

Be provided with the dynamic pressure chamber that radially caves inward at the position of straight line and be provided with the spacing groove of straight shape to work chamber's direction in the described cylinder body and with through hole, to spacing groove, the energy interchange assembly is installed at the dynamic pressure chamber from through hole.

It is indoor that described energy interchange assembly comprises that an end extend into dynamic pressure cavity, and the other end extends to plunger in the work chamber through spacing groove, and the spherical valve that is used to seal or open through hole is installed on this plunger.It is indoor that described energy interchange assembly comprises that an end extend into dynamic pressure cavity, the other end extends to position, firing chamber and end and first plunger of balance set and an end and first plunger are installed are slidingly connected, second plunger that the other end is fixedlyed connected with spherical valve, and one end fixedly connected with spherical valve, the other end extends to the 3rd plunger in the work chamber through spacing groove.

The indoor pressure spring that the pushing tow plunger or first plunger are installed of described dynamic pressure cavity.Also be provided with the balance channel that dynamic pressure chamber and work chamber are interconnected on the described cylinder body.

Described rotor is provided with 2 to 8 chutes, and an acting slide plate is installed in each chute.

The structure that rotary-piston type explosive motor proposed by the invention adopts the firing chamber to separate and be connected with work chamber, can make the working medium in the firing chamber enter work chamber according to predetermined direction, and can produce unidirectional power rotary-piston is done work, so the economic performance and the power performance of the explosive motor of this kind structure are very good; Be subjected to rotary-piston and the two-way control of working medium because of the energy interchange assembly simultaneously, the speed of its energy interchange can arbitrarily be adjusted, thereby makes this explosive motor have good slow-speed of revolution performance; In addition, the acting slide plate of installing on the rotary-piston can skid off in chute when its acting of needs automatically, when not needing its acting, can slide back automatically in the chute, can dwindle the volume of rotary-piston, can increase the moment of rotation of rotary-piston again, improve the economic performance and the power performance of explosive motor.

Description of drawings

Accompanying drawing 1 is an embodiment's of a rotary-piston type explosive motor proposed by the invention surface structure schematic representation;

Accompanying drawing 2 be among Fig. 1 cylinder body A-A to cross-sectional view;

Firing chamber cylinder body 1A-A is to cross-sectional view among accompanying drawing 3 Fig. 1.

Embodiment

Referring to Fig. 1, this figure provides an embodiment's of rotary-piston type explosive motor proposed by the invention overall appearance structure.This explosive motor comprises cylinder body and fuel supply system 3, and wherein, cylinder body comprises firing chamber cylinder body 1 and work chamber's cylinder body 2.

The top of firing chamber cylinder body 1 is equipped with timing switch 11, and both sides are respectively arranged with ignition mechanism 12 and feed the interior fuel jet orifice 14 in firing chamber 13 (referring to Fig. 2 or Fig. 3).Timing switch 11 wherein is parts that control ignition device 12 opens or closes, because of both all belong to prior art, so do not provide concrete structure among the figure; Work chamber's cylinder body 2 has an output shaft 21 and gas exhaust piping 22 from seeing in appearance, and oil hole 23, and gas exhaust piping 22 can press waste gas to discharge on the band in work chamber's cylinder body 2; Fuel supply system 3 has a pneumatics pump 31 and is used to drive the turbine retaining depressor 32 of pneumatics pump 31 work, the input end of this pneumatics pump 31 is connected with turbine retaining depressor 32, its output terminal is equipped with air inlet pipeline 33, and these air inlet pipeline 33 the other ends insert in the fuel jet orifice 14 that is provided with on the firing chamber 13.Free combustion mixer 34 also is installed on air inlet pipeline 33, and sky combustion mixer 34 is provided with fuel inlet 35.In the turbine retaining depressor 32 turbine (not providing concrete structure among the figure) is installed, turbine retaining depressor 32 is when work, gas exhaust piping 22 is that tail gas is drawn with the compressed gas in the work chamber 2, the pressure that utilizes tail gas with the turbine drives rotation after, the discharge pipe 36 of tail gas through having baffler 38 discharged, and the turbine shaft 37 of turbine retaining depressor 32 flows to pneumatics pump 31 with rotatory force.Eccentric wheel (not providing concrete structure among the figure) is installed in the pneumatics pump 31, the turbine shaft 37 of rotation drives eccentric wheel and rotates, thereby the piston in the pneumatics pump 31 is moved up and down, when the piston in the pneumatics pump 31 moves up, air can be pressed into air inlet pipeline 33, air is through sky combustion mixer 34 and after the fuel mix that fuel inlet 35 enters, again in fuel jet orifice 14 sprays into firing chamber 13.

Referring to Fig. 2 and Fig. 3, these two accompanying drawings provide an embodiment's of rotary-piston type explosive motor cylinder body proposed by the invention surface structure.Be provided with the firing chamber 13 that an outward appearance is elliptical cylinder-shape in the firing chamber cylinder body 1 in the cylinder body, timing switch 11 is installed above firing chamber cylinder body 1, both sides are respectively arranged with the fuel jet orifice 14 in ignition mechanism 12 and the feeding firing chamber 13, thereunder are provided with through hole 15.

Be provided with the work chamber 23 that is similar to cylinder in work chamber's cylinder body 2, in work chamber 23 output shaft 21 is installed, rotary-piston 24 is installed on output shaft 21, this rotary-piston 24 is microscler cylindrical bodys, on its cylinder and with firing chamber 13 in through hole 15 corresponding positions or connect whole cylinder and be provided with three grooves that cave inward 25 equally spacedly, in cylindrical body, be provided with three equally spacedly and axially connect whole cylindrical chute 26, and an acting slide plate 27 is installed in each chute 26.Above-mentioned groove 25 and/or chute 26 also can be provided with a plurality of, as 2 to 8 grooves 25 and/or chute 26 are set.Gas exhaust piping 22 is installed in work chamber's cylinder body 2, and gas exhaust piping 22 can press the band in work chamber's cylinder body 2 waste gas or tail gas to discharge.Through hole 15 in the firing chamber 13 is provided with the inclination groove 28 that is connected with this through hole 15 towards the direction setting of work chamber 23 in the work chamber 23, and makes the outer side 281 of this inclination groove 28 and the inwall smooth connection of work chamber 23.Keep in balance for making the temperature in firing chamber 13 and the work chamber 23, in cylinder body, also be provided with cooling chamber 5, this cooling chamber 5 is around firing chamber 13 and work chamber 23, also be provided with intake tunnel 51 and exhalant canal 52 on the top of cooling chamber 5, cooling water or fluid can enter cooling chamber 5 through intake tunnel 51, discharge through exhalant canal 52 then, to realize that the circulation cooling is realized in firing chamber 13 and work chamber 23.

Energy interchange assembly 4 is to be used for the working medium in the firing chamber 13 are passed to parts in the work chamber 23.For energy interchange assembly 4 is installed, in firing chamber 13, be provided with the dynamic pressure chamber 41 that radially caves inward, dynamic pressure chamber 41 in firing chamber 13 with through hole 15 point-blank, being provided with the spacing groove 42 of straight shape to work chamber's 23 directions, between spacing groove 42, energy interchange assembly 4 is installed at dynamic pressure chamber 41 from through hole 15.Energy interchange assembly 4 comprises plunger and balance set 43, and spherical valve 45.Wherein, plunger is made up of first plunger 44, second plunger 47 and the 3rd plunger 46.One end of first plunger 44 extend in the dynamic pressure chamber 41, the other end extends to 13 positions, firing chamber and the end is equipped with balance set 43, first plunger 44 is to be made of hollow rod member, one end of second plunger 47 extend in first plunger 44 after passing balance set 43 again, the other end of second plunger 47 is fixedlyed connected with spherical valve 45, the 3rd plunger 46 1 ends are fixedlyed connected with spherical valve 45, and the other end extends in the work chamber 23 through spacing groove 42.Be provided with the end that expansion slot 421, the three plungers 46 extend to expansion slot 421 at spacing groove 42 near an end of work chamber 23 spherical parts 471 is installed.The pressure spring 48 that is used for pushing tow first plunger 44 also is installed in the dynamic pressure chamber 41.In addition, on firing chamber cylinder body 1, also be provided with balance channel 49, balance channel 49 is interconnected dynamic pressure chamber 41 and work chamber 23, when dynamic pressure chamber 41 enters gas particularly during compressed gas in it because of component wear makes, can in delivering gas to work chamber 23, balance channel 49 make energy interchange assembly 4 be in dynamic balance state all the time.

Energy interchange assembly 4 can also adopt other structure, as long as promptly can the working medium transmission just can be made the explosive motor proper functioning by predetermined rule.Adopt a plunger as energy exchange assembly 4, the normal exchange that the spherical valve 45 that is used to seal or open through hole 15 also can be realized energy is installed on this plunger.

Rotary-piston type explosive motor proposed by the invention is when work, at first rotate by motor or other power equipment rotary driving piston 24, when rotary-piston 24 turns to groove 25 with spherical parts 471 contacted positions, spherical valve 45 can be with through hole 15 sealings under plunger drives, and when rotary-piston 24 turns to other position, rotary-piston 24 can be with plunger jack-up, spherical valve 45 and through hole 15 are separated, thereby make working medium flow into work chamber 23 along inclination groove 28, the inertial force that this moment, acting slide plate 27 rotary-pistons 24 on the rotary-piston 24 were produced extends rotary-piston 24, working medium slide plate 27 actings that can promote to do work.

Claims

1. rotary-piston type explosive motor, it is characterized in that: this motor comprises cylinder body, the work chamber that in this cylinder body, is provided with the firing chamber and is connected by through hole with the firing chamber, and be installed on the cylinder body and extend to the energy interchange assembly of work chamber from the firing chamber, the rotary-piston that is limited by output shaft is installed in the described work chamber.

2. motor according to claim 1 is characterized in that: also be provided with in the described cylinder body and allow cooling chamber and the intake tunnel that with cooling chamber be connected and the exhalant canal of cooling water around the outer loop of firing chamber and work chamber.

3. motor according to claim 1, it is characterized in that: described firing chamber is provided with through hole towards the direction of work chamber, work chamber is provided with the inclination groove that is connected with this through hole, and makes the outer side of this inclination groove and the inwall smooth connection of work chamber.

4. motor according to claim 1, it is characterized in that: be provided with the dynamic pressure chamber that radially caves inward at the position of straight line and be provided with the spacing groove of straight shape to work chamber's direction in the described cylinder body and with through hole, to spacing groove, the energy interchange assembly is installed at the dynamic pressure chamber from through hole.

5. motor according to claim 4, it is characterized in that: it is indoor that described energy interchange assembly comprises that an end extend into dynamic pressure cavity, the spacing groove of the other end process extends to the plunger in the work chamber, and the spherical valve that is used to seal or open through hole is installed on this plunger.

6. motor according to claim 4, it is characterized in that: it is indoor that described energy interchange assembly comprises that an end extend into dynamic pressure cavity, the other end extends to position, firing chamber and end and first plunger of balance set and an end and first plunger are installed are slidingly connected, second plunger that the other end is fixedlyed connected with spherical valve, and one end fixedly connected with spherical valve, the other end extends to the 3rd plunger in the work chamber through spacing groove.

7. according to claim 5 or 6 described motors, it is characterized in that: the indoor pressure spring that the pushing tow plunger or first plunger are installed of described dynamic pressure cavity.

8. motor according to claim 4 is characterized in that: also be provided with the balance channel that dynamic pressure chamber and work chamber are interconnected on the described cylinder body.

9. motor according to claim 1 is characterized in that: described rotor is provided with 2 to 8 chutes, and an acting slide plate is installed in each chute.

10. motor according to claim 1 is characterized in that: also be provided with the gas exhaust piping that is used for exhaust emissions in the described work chamber.