CN206111338U - Vary voltage scaling's wankel engine - Google Patents

Abstract

The utility model discloses a vary voltage scaling's wankel engine comprises cycloid shape cylinder body, three lobe rotor, variable volume recess and reset spring at least, the variable volume recess includes cell body, vallecular cavity, slider and small volume baffle at least, air impact journey and compression stroke are inhaled in proper order to the engine during operation, and when the rotor changeed to minimum working chamber department, oil -gas mixture was lighted, and the acting of gas inflation promotes the three lobe rotor and rotates, working stroke accomplishes, and the exhaust valve is opened, gets into exhaust stroke, then go on breathing in the second time, compression, acting and exhaust stroke, the operation is repeated and cycled in this way. In working stroke, the high -speed rotation of gas promotion rotor, slider production in the centrifugal force messenger recess of production and rotor motion opposite direction's removal, the recess volume that the messenger encloses changes, displacement because of slider under the different rotational speeds produces is different, and the volume of recess is different to lead to the engine to have higher pressure scaling under the slow -speed of revolution, have lower pressure scaling under high rotational speed.

Description

A kind of Wankel engine of Ratios

Technical field

The invention belongs to technical field of engines, is related to Wankel engine, and in particular to a kind of Wang Ke of Ratios That electromotor.

Background technology

Rotary engine（Rotary Engine）It is by German's Fei Jiashi wankels（Felix Wankel, 1902- 1988）Invented, therefore also known as Wankel engine (Wankel Engine), he on the basis of the achievement in research for summarizing forefathers, Some key technical problems for such as sealing are solved, the rotary engine with practicality has been succeeded in developing.Rotary engine Air-breathing, compression, acting, exhaust stroke are completed using three-apexed rotor rotary motion, with traditional conventional engine Linear motion is far different.

Wankel engine depends on the bulbs of pressure that air gas burning is produced with conventional reciprocating formula electromotor To obtain rotatory force, but in reciprocating engine, generation pushes down on piston in the bulbs of pressure of piston top surface, machinery Power is passed to connecting rod, drives crank rotation.For rotary engine, the bulbs of pressure act on the side of rotor, so as to by triangle Push the center of eccentric shaft in one of three faces of shape rotor.This motion is carried out under the power effect of two component, and one refers to To the centripetal force at output shaft center, another is the circumferential force for making output shaft rotation.

The rotor of Wankel engine is for each revolution with regard to ignition expansion working three times, and general four-stroke engine rotation The ability that takes two turns work done once, therefore with very high power-to-volume ratio.Further, since the axial operation characteristic of Wankel engine, it is not Accurate crankshaft counterbalance is needed just to reach very high rotating speed.Whole electromotor only has two rotatable parts, eliminates general four More than 20 movable parts such as the inlet and outlet valve of Stroke Engine, valve spring, camshaft, engine structure are greatly simplified, The probability for breaking down also is greatly reduced.In addition to advantage more than, the advantage of Wankel engine also includes small volume, weight Gently, centre of gravity, shake it is little etc..

Although Wankel engine has the outstanding advantages that conventional reciprocating formula piston engine does not have, similarly deposit In the defect of some protrusions.It is that oil consumption is high first, exhaust emissions is exceeded, and this is in mainly due to Wankel engine combustor Irregular sleeve configuration, flame propagation path are longer, incomplete combustion, cause fuel oil and consumption of lubricating oil to increase.Additionally, wankel Moment of torsion under low engine speeds is little, starts to walk powerless；Another serious defect is that Wankel engine is because the original of structure Cause, compression ratio are difficult to improve, and can only use spark ignition type, it is impossible to compression-ignited, i.e., can not make fuel using diesel oil.Although Mazda is public Department once increased single turbine supercharging to Wankel engine and wait device with twin turbocharged, but simply improve output, And it is appropriate reduce exhaust emissions, but have very big gap with reciprocating engine.This external-rotor engine also has Sealing strip is easy to wear, the problems such as cylinder body processing difficulties.

The defect of traditional Wankel engine for more than, this utility model develop a kind of wankel of Ratios Electromotor.By the rotor structure for improving electromotor, the fixed volume groove on rotor is changed to into variable volume groove；In acting Stroke stage, high-temperature high-pressure fuel gas drive rotor high-speed rotation, the centrifugal force of generation make the slide block in groove produce and rotor fortune Dynamic movement in opposite direction, makes the groove volume that slide block is surrounded with groove change；Due to suffered by different rotating speeds sliding block Centrifugal force is different, and the displacement of generation is different, causes the volume of variable volume groove different, so that the compression ratio of electromotor is continuous Variable, with the change of compression ratio, the expansion ratio of electromotor also respective change can make burning more abundant, so that under low speed Torque output and the thermal efficiency of electromotor be improved.

The content of the invention

Technical problem to be solved in the utility model is to provide a kind of Wankel engine of Ratios, by electromotor Groove on three-apexed rotor is designed to variable volume groove, with the cavity volume of change burning room, makes compression ratio in whole rotating speed In the range of continuous variable, under the slow-speed of revolution be high compression ratio, under high rotating speed be low compression ratio；By adjusting the spacing of rotor top shoe Device, can adjust the minimum compression ratio of rotary engine, is allowed to adapt to the burning needs of pluralities of fuel.

A kind of Wankel engine of Ratios, at least by variable on cycloidal cylinder body, three-apexed rotor, three-apexed rotor Volume groove and back-moving spring composition；Characterized in that, variable volume groove at least includes cell body, vallecular cavity, slide block and minimum appearance Product baffle plate；Described variable volume groove is provided with to the recessed slideway in both sides；Described slide block includes two slide bars, described cunning The symmetrical top for being distributed in slide block of bar, slide bar are mounted in slideway；Slide block passes through slide bar free movement in cell body；Described Back-moving spring one end is fixed in vallecular cavity, and the other end is connected together with slide block；Described vallecular cavity is located at the tail of variable volume groove End, under three-apexed rotor convex surface；When electromotor works, intake stroke and compression stroke are carried out successively, when rotor goes to most At little working chamber, i.e., corresponding to the top dead centre of piston reciprocating electromotor, gas mixture is ignited, combustion gas expansion work, promotes Three-apexed rotor is rotated；As expansion stroke is completed, exhaust valve is opened, and into exhaust stroke, then carries out second air-breathing, pressure Contracting, acting and exhaust stroke, so move in circles；In expansion stroke, high-temperature high-pressure fuel gas promote three-apexed rotor to turn at a high speed Dynamic, the centrifugal force of generation makes the slide block in groove produce and rotor motion movement in opposite direction, makes what slide block and cell body were surrounded Groove volume changes；As the centrifugal force suffered by different rotating speeds sliding block is different, the displacement of generation is different, causes groove Volume is different, has higher compression ratio at the low rotational speed so as to cause electromotor, has relatively low compression ratio at high speed.

Described slide block top is provided with radial direction gas port.

Described slide bar is cylinder.

Described back-moving spring is compression spring；During stationary rotor, the elastic force that back-moving spring is produced makes slide block in minimum At volume baffle plate.

Described minimum volume baffle plate is located at 30% to 90% place of variable volume groove maximum volume, i.e. slide block is parked in minimum When at volume baffle plate, exposed groove volume is the 30% to 90% of groove maximum volume.

Further, the four of the length no more than cell body clear span that described minimum volume baffle plate is stretched out to cell body center/ One, the total length of two pieces of baffle plates is not more than 1/2nd of cell body clear span.

The beneficial effects of the utility model are：1, the compression ratio of electromotor can continuously change with the change of rotating speed, improve Effective thermal efficiency of the electromotor from underload to high load capacity in whole working range, reduces oil consumption, reduces discharge；2, significantly improve The moment of torsion of electromotor under the slow-speed of revolution, makes automobile or other dynamic power machine startings stronger, accelerates more fast；3, the pass of Ratios Key member-variable volume groove, part are few, easy to process, reliable.4, for supercharging h type engine h, Ratios technology The defect of turbo lag can be overcome, the advantage of supercharging technology can be given full play to.

Description of the drawings

Fig. 1 is Wankel engine internal structure schematic diagram of the present utility model.

Fig. 2 is the three-apexed rotor structural representation with variable volume groove.

Fig. 3 is the amplification profile in A-A faces in Fig. 2.

Fig. 4 is the top view of variable volume groove.

Specific embodiment

This utility model is described in further detail below in conjunction with drawings and Examples.

A kind of Wankel engine of Ratios as Figure 1-4, at least by cycloidal cylinder body 1, three-apexed rotor 2, can Capacity groove 3 and back-moving spring 4 are constituted；Variable volume groove 3 at least include cell body 31, vallecular cavity 32, slideway 33, slide block 34, Minimum volume baffle plate 35；Afterbody of the vallecular cavity 32 in variable volume groove 3；Minimum volume baffle plate 35 is located at variable volume groove 3 At the 70% of maximum volume, i.e., when slide block 34 is parked at minimum volume baffle plate 35, exposed groove volume is groove maximum volume 70%；Minimum volume baffle plate 35 is embedded on cell body 31 by interference fit；Minimum volume baffle plate 35 is stretched out to 31 center of cell body Length be 1/8th of 31 clear span of cell body, a quarter of the total length for stretching out of two pieces of baffle plates 35 for 31 clear span of cell body； There is cylindrical slide bar 341 34 top both sides of slide block, and slide bar 341 is mounted in slideway 33；34 top of slide block is provided with radial direction gas port 342；Slide block 34 is slided in slideway 33 so as to free-moving in cell body 31 by slide bar 341；One end of back-moving spring 4 It is fixed in vallecular cavity 32, the other end is connected together with slide block 34；Back-moving spring 4 is compression spring；During stationary rotor, slide block 34 because The elastic force of back-moving spring 4 is parked at minimum volume baffle plate 35；The connection of electromotor other parts and install according to traditional wankel The mode of electromotor is carried out.

The driving principle of the Ratios Wankel engine provided by the embodiment of the present invention and existing Wankel engine It is identical, i.e., when electromotor works, intake stroke and compression stroke are carried out successively, when rotor is gone at minimum working chamber（Correspondence In the top dead centre of piston reciprocating electromotor）, gas mixture is ignited, combustion gas expansion work, promotes three-apexed rotor 2 to rotate；With Expansion stroke to complete, exhaust valve is opened, into exhaust stroke, then carry out second air-breathing, compression, acting and aerofluxuss punching Journey, so moves in circles；The characteristics of Ratios Wankel engine in the present embodiment, is, in expansion stroke, high temperature High-pressure gas promote the centrifugal force of 2 high-speed rotation of three-apexed rotor, generation to make the generation of slide block 34 contrary with 2 direction of motion of three-apexed rotor Movement, make the groove volume that slide block 34 is surrounded with cell body 31 change, due to the centrifugation suffered by different rotating speeds sliding block 34 Power is different, and the displacement of generation is different, causes the volume of variable volume groove 3 different, so that the compression ratio of electromotor continuously may be used Become；There is higher compression ratio at the low rotational speed, at high speeds with relatively low compression ratio.

It one of preferred embodiment, is in order that those skilled in the art more fully understands this that above example is Invention, is not to be construed as the restriction to rights protection scope of the present invention, conversely, for the common scientific research personnel of this area, The change or adjustment of any unsubstantiality that all utilization this utility model are carried out, all should fall into this utility model claims Within protection domain.

Claims (6)

1. a kind of Wankel engine of Ratios, at least by the variable capacity on cycloidal cylinder body, three-apexed rotor, three-apexed rotor Product groove and back-moving spring composition；It is characterized in that, variable volume groove at least includes cell body, vallecular cavity, slide block and minimum volume Baffle plate；Described variable volume groove is provided with to the recessed slideway in both sides；Described slide block includes two slide bars, described slide bar The symmetrical top for being distributed in slide block, slide bar are mounted in slideway；Slide block passes through slide bar free movement in cell body；Described answers Position spring one end is fixed in vallecular cavity, and the other end is connected together with slide block；Described vallecular cavity is located at the tail end of variable volume groove, Under three-apexed rotor convex surface；When electromotor works, intake stroke and compression stroke are carried out successively, when rotor goes to most unskilled labourer Make at chamber, i.e., corresponding to the top dead centre of piston reciprocating electromotor, gas mixture is ignited, combustion gas expansion work, promote triangle Rotor is rotated；As expansion stroke is completed, exhaust valve is opened, and into exhaust stroke, is then carried out second air-breathing, is compressed, does Work(and exhaust stroke, so move in circles；In expansion stroke, high-temperature high-pressure fuel gas promote three-apexed rotor high-speed rotation, produce Centrifugal force slide block in groove is produced and rotor motion movement in opposite direction, the groove volume for making slide block surround with cell body Change；As the centrifugal force suffered by different rotating speeds sliding block is different, the displacement of generation is different, causes the volume of groove not Together, so as to cause electromotor to have higher compression ratio at the low rotational speed, there is relatively low compression ratio at high speed.

2. according to a kind of Wankel engine of the Ratios described in claim 1, it is characterised in that：Described slide block top It is provided with radial direction gas port.

3. according to a kind of Wankel engine of the Ratios described in claim 1, it is characterised in that：Described slide bar is circle Cylindricality.

4. according to a kind of Wankel engine of the Ratios described in claim 1, it is characterised in that：Described back-moving spring It is compression spring；During stationary rotor, the elastic force that back-moving spring is produced makes slide block at minimum volume baffle plate.

5. according to a kind of Wankel engine of the Ratios described in claim 4, it is characterised in that：Described minimum volume Baffle plate is located at 30% to 90% place of variable volume groove maximum volume, i.e., when slide block is parked at minimum volume baffle plate, exposed is recessed Groove volume for groove maximum volume 30% to 90%.

6. according to a kind of Wankel engine of the Ratios described in claim 5, it is characterised in that：Described minimum volume Baffle plate is not more than a quarter of cell body clear span to the length that cell body center is stretched out, and the total length no more than cell body of two pieces of baffle plates is net Wide 1/2nd.