CN2191287Y - Curve rotor engine - Google Patents

Abstract

The utility model relates to a curve rotor engine. The existing reciprocating engines have low heat efficiency, and triangle rotor engine engines have high cost and short service life. A working cylinder of the curve rotor engine is divided into two parts-a compression cylinder and an outbreak cylinder. An eccentric compression rotor is arranged inside the compression cylinder, and the inner wall of the compression cylinder is provided with an elastic gate valve, a gas inlet and an exhaust valve; an outbreak rotor whose side wall is provided with a curved groove and a gas distributing hole is arranged inside the outbreak cylinder, and the inner wall of the outbreak cylinder is provided with an elastic gate valve, a recessed combustion chamber and an exhaust port. The curve rotor engine has simple structure, easy fabrication, low cost, long service life, and low noise, and the outbreak force of combustion gas can always and effectively acts on the periphery of the rotors, which enhances the efficiency of thermal conversion.

Description

Curve rotor engine

The utility model belongs to a kind of explosive motor.

Each work cycle of existing reciprocating-piston engine is by air-breathing, compression, burning-expansion, four strokes of exhaust constitute, power stroke wherein burns-is expanded to, in this stroke, the swelling pressure that produce behind the mixture combustion act on piston head and promote piston by the work done of connecting rod driving bent axle, the swelling pressure are constantly maximum after mixed gas is lighted, piston is near the top dead center, this moment, effective arm of force of bent axle was bordering on minimum, can't produce than high pulling torque, when the maximum moment of effective arm of force of bent axle, the descending suitable distance of piston, volume of cylinder increases a lot, and the swelling pressure are die-offed, and can not get equally than high pulling torque, promptly arrive the highest turning radius and the asynchronism(-nization) step that produces pressure maximum, so cause thermal conversion efficiency low.The reciprocating inertial force of critical piece such as its piston rod has limited the physical dimension of piston diameter and crank throw in addition, thereby index such as power per cylinder is difficult to further improve, because square being directly proportional of inertial force and angular velocity of rotation, the raising of rotating speed also is restricted again.The cylinder body of the rotary polygonal piston engine that occurred in nearly 20 years is divided into three chambeies by three-apexed rotor, during work, three chambeies are in air-breathing respectively, compression, three kinds of states of burning expand, pressure difference between three chambeies is very big, be difficult for sealing, and rotor does complicated planetary motion on eccentric shaft, serious vibration, and noise is big, cylinder body is prone to early stage chatter mark, life-span is short, is difficult for making the cost height, low-speed performance is poor, it also exists the outburst swelling pressure and work done effective radius not to reach maximum value simultaneously simultaneously, has influenced the raising of hot merit conversion efficiency, so there is not large development in recent years.

The utility model aims to provide a kind of curred rotor engine, this engine structure is simple, be easy to processing, the outburst swelling pressure can act on rotor maximum radius place all the time, thereby obtain bigger output torque, improve its thermal efficiency, have simultaneously that power is big, volume is little, in light weight, noise is little, the life-span is a long advantage.

The technical solution that realizes above-mentioned purpose is: this motor includes working cylinder, main shaft, igniter, firing chamber and support, fastening, sealed member, it is characterized in that: described working cylinder is divided into compression cylinder 1 and outburst cylinder 21 two-part that same central axis is provided with, its cylinder body is cylindrical shape, be provided with and pass the main shaft 2 relatively-stationary eccentric shafts 9 of outburst cylinder 21 in the compression cylinder 1, relative fixed has cylindrical compression rotor 8 on the eccentric shaft, the diameter of compression rotor is less than the inner chamber of cylinder block diameter and greater than the inner chamber of cylinder block radius, its size should guarantee to make the compression rotor periphery tangent with the cylinder body circle tube inner wall, have on the compression cylinder inwall bus to flashboard slot 5, flashboard 4 one sides are withstood on the spring 6 that is embedded at the bottom of the flashboard slot, one side is withstood the sidewall of compression rotor 8, initial from flashboard, along the compression rotor sense of rotation one suction port 7 that communicates with the Carburetor interface is set on the compression cylinder inwall earlier, the segment distance of being separated by is provided with a unidirectional gas outlet valve 3 again, relative fixed has the cylindrical outburst rotor 18 that is slidingly matched with inboard wall of cylinder block on the main shaft 2 in the described outburst cylinder body 21, on the outburst rotor sidewall vertically generatrix direction have the recessed curvilinear groove 19 that can be sealed by inboard wall of cylinder block, the curvilinear groove recess is the slick and sly cambered surface that connects, groove both sides cambered surface is connected with the rotor cylindrical side wall is slick and sly separately, outburst cylinder 21 madial wall Up Highway UHWs are to having flashboard slot 24, flashboard 22 1 sides withstand on the spring 23 at the bottom of the embedding flashboard slot, one side is withstood the outer side wall of outburst rotor, press the rotor sense of rotation, be provided with recessed firing chamber 25 on the outburst cylinder body madial wall less than curvilinear groove 19 width after flashboard slot, be provided with the spark plug 26 that links to each other with described igniter in the firing chamber, after the firing chamber, be separated by and also be provided with relief opening 29 on the outburst cylinder side wall of a segment distance, the outburst rotor sidewall be provided with communicate with the unidirectional gas outlet valve of compression cylinder and rotary course in can aim at the air distribution port 27 of firing chamber, outburst rotor upper curve groove is located according to the work phase place with the relative position between air distribution port and inboard wall of cylinder block upper combustion chamber and the relief opening.

The working principle of this motor is: in compression cylinder 1, compression rotor 8 on the eccentric shaft and the cavity between the inboard wall of cylinder block are divided into 2 parts by flashboard 4, rotation along with eccentric shaft 9, compression rotor 8 rolls along inboard wall of cylinder block, also constantly changed by the separated two-part cavity volume of flashboard thereupon, fuel vapor enters in the cylinder body cavity by the suction port on the cylinder side wall from the Carburetor interface, after compression rotor rolls across this suction port, compression rotor to the cavity between the flashboard seals after being about to air inlet, and constantly compress this cavity gas with the rolling of rotor, after reaching certain pressure, compressed gas is gone out from unidirectional gas outlet valve 3 and is entered the outburst cylinder, be compressed under the situation at an above-mentioned cavity, another cavity then enters combustion gas from suction port 7, compression rotor constantly rolls, and promptly constantly repeats air-breathing, compression, the process of exhaust provides compressed gas to the outburst cylinder.In outburst cylinder 21, (Fig. 2 a) when the air distribution port 27 that communicates with the unidirectional gas outlet valve of compression cylinder on its sidewall is aimed at firing chamber 25 in the outburst rotor rotation process, the high pressure mixing combustion gas enters the firing chamber, rotor is rotated further, air distribution port is by cylinder side wall sealing back (Fig. 2 b), igniter passes through plug ignition, mixed gas takes fire, when the outburst rotor forwards curvilinear groove aligning firing chamber recessed on its sidewall to (Fig. 2 c), mixed gas enters sensible combustion period, temperature is hurried to be increased, the hurried expansion of gas, produce the outburst high pressure, this pressure acts on the curvilinear groove one side cambered surface, rotor is produced a circumferential thrust, and its rear portion of curvilinear groove opposite side cambered surface is blocked with high pressure air by flashboard and is isolated, bear explosive force by flashboard, so rotor will rotate along a direction, along with flashboard slides along the curvilinear groove cambered surface, the curvilinear groove cavity that is filled with the outburst combustion gas increases gradually, pressure reduces, when forwarding the position of curvilinear groove aligning relief opening to (Fig. 2 d), charging volume has reached maximum in the curvilinear groove, and pressure is minimum, waste gas is discharged from relief opening, finishes a work cycle.

This motor is divided into compression cylinder and outburst cylinder two-part with clutch release slave cylinder, cylinder body is cylindrical shape, rotor is cylindrical, easy processing, and critical piece is for simply rotatablely moving, vibrate little, noise is little, and the life-span is long, and this machine air inlet, compression and outburst, exhaust place the inter-sync of two-part cylinder body to carry out respectively, strengthened effective work done corner, its combustion gas explosive force acts on rotor periphery all the time simultaneously, can obtain maximum rotary arm, has effectively utilized explosive force, improved the thermal efficiency, entire machine is simple in structure, and cost is low, and is in light weight, volume is little, and output power is big.The mode of the compressed gas of this machine compression rotor rolling simultaneously also can reduce vibration and component wear, increases the service life.

Description of drawings:

Fig. 1, the utility model compression cylinder embodiment cross-sectional structure schematic representation.

A, Single disc compression cylinder

1: compression cylinder 2: main shaft 3: unidirectional gas outlet valve

4: flashboard 5: flashboard slot 6: spring

7: suction port 8: compression rotor 9: eccentric shaft

B, symmetric double flashboard compression cylinder

10,15: suction port 11,14: flashboard 12,13: unidirectional gas outlet valve

Fig. 2, the utility model outburst cylinder example structure and different station schematic representation.

16: flashboard 17,25: firing chamber 18: the outburst rotor

19,28: curvilinear groove 20,29: relief opening 21: the outburst cylinder

22: flashboard 23: spring 24: flashboard slot

26: spark plug 27,27 ': air distribution port

Fig. 3, the utility model embodiment overall structure schematic representation.

30: Carburetor interface 31: air intake passage 32: suction port

33: compression cylinder 34: compression rotor 35: preceding dividing plate

36: positioning ring 37: compression cylinder 38: eccentric shaft

39: rear bulkhead 40: outburst cylinder 41: outlet pipe

42: relief opening 43: curvilinear groove 44: rear end cover

45: outburst rotor 46: main shaft 47: flange

48: oil seal ring 49: firing chamber 50: spark plug

51: air distribution port 52: pressure fixing valve 53: unidirectional gas outlet valve

54: gas storage chamber 55: unidirectional gas outlet valve 56: seal ring

57: eccentric shaft 58: starting melon 59: belt pulley

60: distribution mechanism 61: front cover

Compression cylinder and outburst cylinder cross-sectional structure schematic representation among Fig. 4, Fig. 3.

65,68: compression cylinder flashboard slot 66,67: compression cylinder flashboard

69,73: outburst cylinder flashboard slot 70,74: outburst cylinder flashboard

71,43: curvilinear groove 72: pipeline

75,55: the unidirectional gas outlet valve of compression cylinder

Fig. 5, the utility model embodiment break out the rotor structure schematic representation.

80,81: curvilinear groove

The utility model is described in further detail below in conjunction with embodiment:

As shown in Figure 3, Figure 4, the compression cylinder 33,37 that the compression cylinder of present embodiment is coaxial by 2 and air flue is in parallel is formed, first compression cylinder 33 front portions are provided with front cover 61, first with dividing plate 35 before being provided with between second compression cylinder, second compression cylinder 37 is with being provided with rear bulkhead 39 between the outburst cylinder 40, and outburst cylinder 40 rear portions are provided with rear end cover 44, and above-mentioned several parts are fixed as one by the stud bolt series connection, all adopt positioning ring 36 location to connect simultaneously between the adjacent component, to guarantee concentricity.

Coaxial eccentric shaft 38, the 57 relative central axis that are positioned at two compression cylinders differ 180 ° and eccentricly are provided with and are an one-piece element, connect with the main shaft 46 usefulness spline pair Spielpassung of passing the outburst cylinder, eccentric shaft, main shaft are by front cover, rear bulkhead, rear end cover bearings.The main shaft portion that the eccentric shaft front end stretches out front cover is provided with starting melon 58 and belt pulley 59, and the end that rear end cover is stretched out at the main shaft rear portion is equipped with flange 47, in order to outputting power.

Front cover is provided with Carburetor interface 30, with be located at the outer field air intake passage 31 of two compression cylinders and communicate, suction port 32 on two compression cylinders communicates with air intake passage, also be provided with the gas storage chamber 54 of sealing at two compression cylinder skins, this gas storage chamber communicates with the unidirectional gas outlet valve 53,55 of two compression cylinders, simultaneously be located at rear bulkhead on pressure fixing valve 52 communicate, the pressure fixing valve delivery outlet is located at can be aimed on the rear bulkhead on the position of breaking out air distribution hole 51 on the rotor.

Being separated by on the compression cylinder inwall 180 ° is symmetrical arranged two flashboards 11,14, and by the rotor sense of rotation respectively on the inboard wall of cylinder block behind the two shoe brake plates correspondence be provided with two groups of aforesaid suction ports 10 with unidirectional gas outlet valve 12 and suction port 15 with unidirectional gas outlet valve 13.Simultaneously the compression cylinder inwall is provided with cushions, with enhanced leaktightness, reduces noise, and the flashboard that symmetry is set can make equilibrium of couples, running steadily, noise vibration is little, the also comparable Single disc raising efficient 60% of calming the anger.

Flashboard slot 65,68 and 69,73 bottoms in present embodiment compression cylinder and the outburst cylinder all show by pipeline 72(Fig. 4 dotted line) communicate with unidirectional gas outlet valve, start and just withstand flashboard by spring, in servicely make flashboard withstand rotor by pressurized gas, so that flashboard adapts to the operating mode of beating at a high speed, guarantee to be adjacent at any time rotor, improve sealing effect.Flashboard all is to form with multilayer monolithic stack combinations simultaneously, be filled with oil film between monolithic layer, when flashboard slided on the rotor curved surface like this, multilayer tablet can form stepped with the different curvature of curved surface naturally, has increased area of contact, improved sealing, the interlayer oil film then can form good lubricated and air-proof condition, and after the flashboard layering, every layer of quality is little, the inertia of beating is little, helps improving rotating speed and life-span.

The outburst rotor 45 sidewalls 180 ° of central axis of being separated by are provided with two curvilinear grooves 19 at generatrix direction symmetrically in the present embodiment outburst cylinder, 28(referring to Fig. 2 a), on inboard wall of cylinder block, be separated by 180 ° simultaneously and be symmetrical arranged two flashboards 16,22, press the rotor sense of rotation, respectively on the inboard wall of cylinder block behind two shoe brakes, 2 plates correspondence be provided with two groups of aforesaid firing chambers 25 with relief opening 29 and firing chamber 17 with relief opening 20, the 180 ° of correspondences of also being separated by on the outburst rotor sidewall are provided with 2 aforesaid air distribution holes 27,27 ', setting also can reach equilibrium of couples like this, running steadily, the purpose that vibrating noise is little has strengthened outburst thrust simultaneously.

As shown in Figure 5, above-mentioned curvilinear groove intrados cross-section curve is one section slick and sly camber line by the circumscribed positions of two circles that face toward rotor sense of rotation one side

The same section helical line that radius of curvature is cumulative Slyness is formed by connecting,

The same helical line of head end

Afterbody is all identical with the outburst rotor radius with outburst rotor sidewall tangent circle slip and helical line tail end radius of curvature.Adopting helical line is that this part also can adopt involute or cycloid for the ease of processing.Above-mentioned curve is that to make curvilinear groove face toward a side of sense of rotation darker, opposite side shoals gradually, can make the outburst initial stage obtain bigger work done face like this, obtain bigger circumferential thrust, along with the rotor rotation, the interior charging volume of curved slot increases pressure gradually and reduces gradually, owing to slow down the speed that pressure falls, can make full use of pressure of explosion, improve the thermal efficiency.

Present embodiment is one section open curve groove (see figure 5) in the middle of outburst rotor sidewall bus, and the convex portion that does not open at two ends can seal to groove together with sidewall.

Be equipped with in this engine rotor and can guarantee good lubricating to the oily passage of rotary part fuel feeding, rear bulkhead and outburst cylinder body, rear end cover is equipped with the water channel of hollow, and with the circulating water heat radiation, exhaust side is provided with the temperature adjustment air flue, heats up rapidly during in order to cold-starting.Rotor end-face is with being equipped with sealing material between abutting end lid and the dividing plate.

Can be when this machine starts with starting the melon manual cranking, also useable electric moter drives the main shaft startup, and during startup, compressed gas enters the gas storage chamber 54 of sealing, after waiting to reach setting pressure, promptly opens pressure fixing valve 52 automatically and enters the outburst cylinder, begins to run well.

Be several the index contrasts of present embodiment below with Reciprocating engine:

The Reciprocating engine curred rotor engine

Rotating speed (rev/min) 4000～6,000 6000

Oil consumption (gram/horsepower-hour) 205～220 180

Mean effective pressure (kgf/centimetre ²) 8～10 16

Power per liter (horsepower/liter) 40～60 100

Weight/power ratio (kilogram/horsepower) 1～2 1.7

Claims (9)

1, curred rotor engine, include working cylinder, main shaft, igniter, firing chamber and support, fastening, sealed member, it is characterized in that: described working cylinder is divided into compression cylinder 1 and outburst cylinder 21 two-part that same central axis is provided with, its cylinder body is cylindrical shape, be provided with and pass the main shaft 2 relatively-stationary eccentric shafts 9 of outburst cylinder 21 in the compression cylinder 1, relative fixed has cylindrical compression rotor 8 on the eccentric shaft, the diameter of compression rotor is less than the inner chamber of cylinder block diameter and greater than the inner chamber of cylinder block radius, its size should guarantee to make the compression rotor periphery tangent with the cylinder body circle tube inner wall, have on the compression cylinder inwall bus to flashboard slot 5, flashboard 4 one sides are withstood on the spring 6 that is embedded at the bottom of the flashboard slot, one side is withstood the sidewall of compression rotor 8, initial from flashboard, along the compression rotor sense of rotation one suction port 7 that communicates with the Carburetor interface is set on the compression cylinder inwall earlier, the segment distance of being separated by is provided with a unidirectional gas outlet valve 3 again, relative fixed has the cylindrical outburst rotor 18 that is slidingly matched with inboard wall of cylinder block on the main shaft 2 in the described outburst cylinder body 21, on the outburst rotor sidewall vertically generatrix direction have the recessed curvilinear groove 19 that can be sealed by inboard wall of cylinder block, the curvilinear groove recess is the slick and sly cambered surface that connects, groove both sides cambered surface is connected with the rotor cylindrical side wall is slick and sly separately, outburst cylinder 21 madial wall Up Highway UHWs are to having flashboard slot 24, flashboard 22 1 sides withstand on the spring 23 at the bottom of the embedding flashboard slot, one side is withstood the outer side wall of outburst rotor, press the rotor sense of rotation, be provided with recessed firing chamber 25 on the outburst cylinder body madial wall less than curvilinear groove 19 width after flashboard slot, be provided with the spark plug 26 that links to each other with described igniter in the firing chamber, after the firing chamber, be separated by and also be provided with relief opening 29 on the outburst cylinder side wall of a segment distance, the outburst rotor sidewall be provided with communicate with the unidirectional gas outlet valve of compression cylinder and rotary course in can aim at the air distribution port 27 of firing chamber, outburst rotor upper curve groove is located according to the work phase place with the relative position between air distribution port and inboard wall of cylinder block upper combustion chamber and the relief opening.

2, curred rotor engine as claimed in claim 1, it is characterized in that: being separated by 180 ° on described compression cylinder inwall is symmetrical arranged two described flashboards 11,14, and press the rotor sense of rotation, respectively on the inboard wall of cylinder block behind the two shoe brake plates correspondence be provided with 2 groups of described suction ports 10 with unidirectional gas outlet valve 12 and suction port 15 with unidirectional gas outlet valve 13, the compression cylinder inwall is provided with cushions.

3, curred rotor engine as claimed in claim 1 or 2 is characterized in that: the compression cylinder 33,37 that described compression cylinder is coaxial by 2 and air flue is in parallel is formed, and eccentric shaft 57, the 38 relative central axis that are positioned at two compression cylinders differ 180 ° of eccentric settings.

4, curred rotor engine as claimed in claim 3, it is characterized in that: the outburst rotor sidewall 180 ° of central axis of being separated by are provided with two described curvilinear grooves 19,28 symmetrically in the described outburst cylinder, on inboard wall of cylinder block, be separated by 180 ° two described flashboards 16 and 22 are set, press the rotor sense of rotation, respectively on the inboard wall of cylinder block behind the two shoe brake plates correspondence be provided with two groups of described firing chambers 25 with relief opening 29 and firing chamber 17 with relief opening 20, be separated by on the outburst rotor sidewall 180 ° also correspondence be provided with 2 described air distribution holes 27,27 '.

5, curred rotor engine as claimed in claim 4 is characterized in that: described curvilinear groove intrados cross-section curve is one section slick and sly camber line by the circumscribed positions of two circles that face toward rotor sense of rotation one side

The same section helical line that radius of curvature is cumulative Slyness is formed by connecting,

Head end together Tail end is all identical with the outburst rotor radius with outburst rotor sidewall tangent circle slip and helical line tail end radius of curvature.

6, curred rotor engine as claimed in claim 1 or 2 is characterized in that: described flashboard slot bottom communicates with the unidirectional gas outlet valve output terminal of compression cylinder, and described flashboard is to form with multilayer monolithic stack combinations, is filled with oil film between monolithic layer.

7, curred rotor engine as claimed in claim 3 is characterized in that: described flashboard slot bottom communicates with the unidirectional gas outlet valve output terminal of compression cylinder, and described flashboard is to form with multilayer monolithic stack combinations, is filled with oil film between monolithic layer.

8, curred rotor engine as claimed in claim 4 is characterized in that: described flashboard slot bottom communicates with the unidirectional gas outlet valve output terminal of compression cylinder, and described flashboard is to form with multilayer monolithic stack combinations, is filled with oil film between monolithic layer.

9, curred rotor engine as claimed in claim 5 is characterized in that: described flashboard slot bottom communicates with the unidirectional gas outlet valve output terminal of compression cylinder, and described flashboard is to form with multilayer monolithic stack combinations, is filled with oil film between monolithic layer.

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