CN201991605U

CN201991605U - Gasoline engine with eccentric rotor

Info

Publication number: CN201991605U
Application number: CN2011200480481U
Authority: CN
Inventors: 黄德中
Original assignee: University of Shaoxing
Current assignee: University of Shaoxing
Priority date: 2011-02-25
Filing date: 2011-02-25
Publication date: 2011-09-28
Anticipated expiration: 2021-02-25

Abstract

The utility model discloses a gasoline engine with an eccentric rotor, comprising a stator, the rotor, a gas inlet hole, a gas exhaust hole, an electric control gasoline nozzle and a spark plug, wherein the cross section of an inner cavity of the stator is circular; the cross section of the rotor is circular; the distance at which the axis of the rotor deviates from that of the stator along the horizontal direction is e; the periphery of the rotor is provided with at least 8 through grooves which are uniformly distributed; each through groove is internally provided with a rectangular blade; when the rotor is in a rotating state along the clockwise direction, the top ends of the blades are contacted with the inner wall of the stator by the action of the centrifugal force; the two sides of the blades and the two ends of the rotor are respectively contacted with the two ends of the stator, so that sealed gas chambers with the quantity being equal to that of the through grooves are formed; the gas exhaust hole and the gas inlet hole are respectively arranged on an end cover at the left area under the inner cavity of the stator and on the end cove at the left area on the inner cavity of the stator; and the electric control gasoline nozzle and the spark plug are respectively positioned on the end cover at the left and lower area of the inner cavity of the stator. Compared with the prior art, the gasoline engine has the advantages that the thermodynamic efficiency is high, the production cost is low, the structure is simple and the service life is long.

Description

The eccentric rotor petrol engine

Technical field

The novel explosive motor that relates to of this use, especially a kind of eccentric rotor petrol engine.

Background technique

Traditional piston type petrol engine, continuous acceleration-deceleration is wanted in the to-and-fro motion in cylinder of its piston, and this structure not only influences its mechanical efficiency, and vibrations are bigger.

At present, a kind of novel rotary polygonal piston engine appears.The same with reciprocating engine, rotary polygonal piston engine also is the pressure that utilizes air, fuel mixture burning to produce.Different is, in reciprocating engine, the pressure that burning produces is kept in the cylinder, order about piston motion, connecting rod and bent axle are converted to the to-and-fro motion of piston and rotatablely move, and in rotary engine, the pressure that burning produces is kept in the closed chamber that stator inner wall and triangular rotor (be used for replacing in this motor piston) constitute.Described rotary polygonal piston engine mainly comprises: the stator that inner chamber is substantially oblong-shaped, the top at each angle of three-apexed rotor---this three-apexed rotor contacts with the inwall slipper seal of described stator, the both sides of this three-apexed rotor contact with the two ends slipper seal of stator respectively, thereby constitute three independently sealed air chamber, the fuel supply system ignition system of unifying.Four parts of combustion process comprise: air inlet, compression, burning and exhaust.When rotor moves in stator, the volume of three air chambers that are made of rotor will change.This variation can produce a kind of pumping action.Air inlet: the circulation charging stage, in that time that suction port is connected air chamber, the volume of air chamber was near its minimum value when passing through suction port from rotor apex.When rotor turns over suction port, the volume of air chamber will increase, thereby air, fuel mixture are sucked air chamber.When the summit of air chamber during through suction port, this air chamber is promptly sealed, then and begin compression.Compression: when rotor continued to move in stator, it is littler that the volume of air chamber can become, and then pressurized air, fuel mixture, and when the face of rotor forwarded the spark plug place to, the volume of air chamber was once more near minimum, and this is the starting point of burning.Burning: when spark ignitor air, fuel mixture, can produce pressure rapidly, drive rotor motion, the pressure of burning can drive rotor and move along the direction that the air chamber volume increases, combustion gas continue to expand, and promote rotor and produce power, pass through relief opening once more until the summit of rotor.Exhaust: when the process relief opening of the summit of rotor, high-pressure combustion gas can be discharged in the venting gas appliance, when rotor continues motion, air chamber begins compression, forces remainder of exhaust gas to be discharged, when the air chamber volume near hour, the summit of rotor will be through suction port, and whole circulation begins once more.

This novel rotary polygonal piston engine is compared with traditional piston type petrol engine, has the following advantages: moving parts still less, thereby its reliability is higher; More smooth and easy, all parts all continue rotation along a direction in the rotary engine, do not need to change direction tempestuously the piston in conventional engines.But also there is following defective at present in this structure: the one, and thermodynamic efficiency is lower, and it is compared with reciprocating engine, and therefore the compression ratio of firing chamber is lower, than reciprocating engine oil consumption more, and can not make high power engine; The 2nd, the cost of production height, the structure more complicated of its three-apexed rotor is difficult for processing and assembling.Exactly because there are these defectives in it, cause rotary polygonal piston engine up to the present also not by popularization and application.

Use novel content

The novel purpose of this use is: a kind of thermodynamic efficiency height is provided, and cost of production is low, the eccentric rotor petrol engine of simple in structure and long service life.

For achieving the above object, the novel following technical proposals of taking of this use:

This uses novel a kind of eccentric rotor petrol engine, comprise that the inner chamber cross section is circular stator, the cross section that is arranged on described bore of stator is circular rotor, inlet hole and exhaust port with open and close control mechanism, electric-controlled gasoline nozzle and spark plug, the axis of described rotor and the parallel axes of stator, the distance that the rotor axis along continuous straight runs departs from the stator axle center left is e, output shaft along the axis of rotor through rotor two ends and be supported in by two bearings on the end cap at stator two ends; Described rotor week the body upper edge circumferentially offer at least 8 uniform grooves, described groove vertically with the parallel axes of rotor, in each described groove, be equipped with a rectangular blade, groove and blade are slidingly matched; Be rotated in a clockwise direction under the state at described rotor, described blade pass is crossed its top of action of centrifugal force and is contacted with the inwall of described stator, described blade both sides, two ends of rotor respectively with two end in contact of stator, constitute the sealed air chamber that quantity equates with described groove quantity; Take back on the described end cap in zone in the below that described exhaust port is located at bore of stator, its along the angle of circumferential two-end-point and rotor axis greater than the angle a between two adjacent blades, less than 2a; Take back on the described end cap in zone in the top that described inlet hole is located at bore of stator, its along the angle of circumferential two-end-point and rotor axis greater than a, less than 2a; Described electric-controlled gasoline nozzle and spark plug all are positioned on the described end cap in zone, left bottom of bore of stator, and the angle that the line from both centers separately to rotor axis is constituted with vertical curve respectively is all less than a.

Described groove is 8, or 12, or 16.

The bottom of described groove communicates with pressure gas source.

Between the bottom of the bottom land of described groove and blade, be provided with spring.

Described e poor greater than zero, less than bore of stator diameter and root diameter; On described output shaft, be provided with flywheel.

Compared with prior art, the novel beneficial effect of this use is: owing to adopt technique scheme, the cross section of cross section of rotor and bore of stator is circle, the axis of described rotor and the parallel axes of stator, rotor axis departs from the stator axle center, and (setting sub 1 intracavity diameter is D, the diameter of rotor 2 is d, then the span of deviation distance e is: 0＜e＜D-d), at circumferential uniform at least 8 blades in rotor week body upper edge, constitute the sealed air chamber that quantity equates with described blade quantity, this structure, the advantage that had both had rotary polygonal piston engine, move smooth and easy, the reliability height, it is lower to have overcome the rotary polygonal piston engine thermodynamic efficiency again, the defective that cost of production is high.Round rotor and stator, structure is simpler than three-apexed rotor, and processing cost is low; The employing of blade, the size that can dwindle rotor greatly, and it is convenient to change blade, does not have bent axle and distribution device, has further reduced production and operating cost; Sealed air chamber quantity increases, thereby operation is more smooth and easy, shakes forr a short time, and component are not fragile, longer service life; By adjusting the eccentric distance of rotor and stator, can improve the compression ratio of sealed air chamber greatly, improve thermodynamic efficiency, can make high power engine.

The described blade quantity that this use is novel can be according to the corresponding increase of engine power size, and preferred 8,12 or 16, the multiple of one-tenth 4 increases progressively, such blade quantity, and above-mentioned beneficial effect is better.Preferably on described output shaft, flywheel is set, is used for counterweigh, further eliminate vibrations.

Description of drawings

Fig. 1 is this structural representation that uses novel embodiment.

Fig. 2 is the A-A cross-sectional view of Fig. 1.

Embodiment

As depicted in figs. 1 and 2, this uses novel a kind of eccentric rotor petrol engine, comprise that the inner chamber cross section is circular stator 1, the cross section that is arranged on described stator 1 inner chamber is circular rotor 2, have out, close the inlet hole 5 and the exhaust port 6 of control mechanism, and petrol jet 7, the parallel axes of the axis of described rotor 2 and stator 1, the distance that rotor 2 axle center along continuous straight runs depart from stator 1 axle center left is that to set sub 1 intracavity diameter be D to e(, the diameter of rotor 2 is d, 0＜e＜D-d) then, output shaft 4 along the axis of rotor 2 through rotor 2 two ends and be supported in by two bearings 9 that (this use is novel to preceding on the end cap of stator 1 rear and front end, after, on, down, a left side, right direction is described, all be as the criterion with Fig. 1), on described output shaft 4, be provided with the flywheel 10 that is used for counterweight and rotary balance; Circumferentially offer 8 uniform grooves in described rotor 2 all bodies upper edges, described groove vertically with the parallel axes of rotor 2, in each described groove, be equipped with a rectangular blade 3, groove and blade 3 sealed sliding are movingly; Preferably, in order to increase blade 3 radially outwardly directed power in the groove, bottom land at described groove is provided with pore, described pore is communicated with the external pressure source of the gas through the slip interface by the passage that is opened on the rotor 2, or the one-way valve in being arranged on described passage is communicated with corresponding sealed air chamber; Spring also can be set between the bottom of the bottom land of described groove and blade 3 increase blade 3 radially outwardly directed power in the groove, again further, can offer chamber in blade 3 bottoms, be used for ccontaining described spring, to reduce the shared space of described spring.Be rotated in a clockwise direction under the state at described rotor 2, described blade 3 contacts with the inwall of described stator 1 on its top under the effect of centrifugal force and described pore air pressure (or elastic force of described spring), described blade 3 both sides, rotor 2 two ends respectively with two end in contact of stator, constitute 8 sealed air chamber that quantity equates with described groove quantity; Take back on the rear end cover in zone in the below that described exhaust port 6 is located at stator 1 inner chamber, its along the angle in circumferential two-end-point and rotor 2 axle center greater than 45 degree (angle of adjacent blades 3 is a=360/8=45 degree), less than 90 degree (angle of two groups of adjacent blades 3 is that 2a=90 are spent); Take back on the rear end cover in zone in the top that described inlet hole 5 is located at stator 1 inner chamber, its along the angle in circumferential two-end-point and rotor 2 axle center greater than 45 degree, spend less than 90; Described electric-controlled gasoline nozzle 7 and spark plug 8 all are positioned on the described end cap in zone, left bottom of stator 1 inner chamber, and the angle that the line from both centers separately to rotor 2 axle center is constituted with vertical curve respectively is all less than 45 degree (angle of adjacent blades 3 is a=360/8=45 degree).

In novel each technological scheme of this use, the quantity of described blade 3 also can be set to other quantity more than 8, and preferred 12, or 16.

In novel each technological scheme of this use, spark plug can also be set, be used for more reliable, especially under low temperature environment, light air, gasoline mixture in the sealed air chamber.

Rotated by driven by motor rotor 2 clockwise directions during engine start, after the normal operation, working procedure is as follows:

1, suction stroke: rotor 2 clockwise rotates, under the effect of centrifugal force and described pore air pressure (or elastic force of described spring), blade 3 is overhanging, upper right sealed air chamber strengthens gradually, form vacuum, described open and close control mechanism control inlet hole 5 is opened, and through inlet hole 5 suction seal air chambers, engine output shaft turns over 90 degree to air by suction tude 11.

2, compression stroke: rotor 2 is rotated further clockwise, and when the sealed air chamber of suction air forwarded stator 1 inner chamber lower right area to, volume reduced gradually, produce high temperature and high pressure gas, in this process, described open and close control mechanism control exhaust port 6 is closed, and engine output shaft turns over 90 degree.

3, working stroke, rotor 2 is rotated further clockwise, after stator 1 inner chamber left end point was crossed by the sealed air chamber of generation high temperature and high pressure gas, the gasoline mouth sprayed 7 gasoline, made the burning of High Temperature High Pressure gasoline mixture body, volumetric expansion, the direction that promotion rotor 2 enlarges towards volume is that clockwise direction rotates, engine output, and two adjacent blades are because overhanging, sealed air chamber strengthens gradually, and engine output shaft turns over 90 degree.

4, exhaust stroke: rotor 2 is rotated further clockwise, sealed air chamber's two adjacent blades after the burning are subjected in the effect withdrawal rotor of stator inner wall face, because shrinking the sealing air chamber reduces gradually, gas was discharged through outlet pipe 12 by exhaust port 6 after generation pressure will burn in the air chamber of zone, stator 1 inner chamber lower-left, engine output shaft turns over 90 degree, in this process, described open and close control mechanism control exhaust port 6 is closed, is controlled inlet hole 5 and closes, and finishes a work cycle.

Because of being symmetrically distributed, the suffered radial force of rotor and bearing balances each other substantially, makes the life-span of engine shaft and bearing long, and noise is low, and motor does not have bent axle and intake and exhaust distribution device.Motor is whenever goed around and is finished 2 thermal processions.

Claims

1. eccentric rotor petrol engine, comprise that the inner chamber cross section is circular stator (1), the cross section that is arranged on described stator (1) inner chamber is circular rotor (2), have out, close the inlet hole (5) and the exhaust port (6) of control mechanism, electric-controlled gasoline nozzle (7) and spark plug (8), it is characterized in that: the parallel axes of the axis of described rotor (2) and stator (1), the distance that rotor (2) axle center along continuous straight runs departs from stator (1) axle center left is e, output shaft (4) along the axis of rotor (2) through rotor (2) two ends and be supported on the end cap at stator (1) two ends by two bearings (9); Circumferentially offer at least 8 uniform grooves in all bodies of described rotor (2) upper edge, described groove vertically with the parallel axes of rotor (2), in each described groove, be equipped with a rectangular blade (3), groove and blade (3) are slidingly matched; Be rotated in a clockwise direction under the state at described rotor (2), described blade (3) contacts with the inwall of described stator (1) by its top of action of centrifugal force, described blade (3) both sides, rotor (2) two ends respectively with two end in contact of stator, constitute the sealed air chamber that quantity equates with described groove quantity; Take back on the described end cap in zone in the below that described exhaust port (6) is located at stator (1) inner chamber, its along the angle in circumferential two-end-point and rotor (2) axle center greater than the angle a between two adjacent blades (3), less than 2a; Take back on the described end cap in zone in the top that described inlet hole (5) is located at stator (1) inner chamber, its along the angle in circumferential two-end-point and rotor (2) axle center greater than a, less than 2a; Described electric-controlled gasoline nozzle (7) and spark plug (8) all are positioned on the described end cap in zone, left bottom of stator (1) inner chamber, and the angle that is constituted with vertical curve respectively to the line in rotor (2) axle center from both centers separately is all less than a.

2. eccentric rotor petrol engine according to claim 1 is characterized in that: described groove is 8, or 12, or 16.

3. eccentric rotor petrol engine according to claim 2 is characterized in that: the bottom of described groove communicates with pressure gas source.

4. eccentric rotor petrol engine according to claim 2 is characterized in that: be provided with spring between the bottom of the bottom land of described groove and blade (3).

5. want 1 to 4 described any eccentric rotor petrol engine according to right, it is characterized in that: described e poor greater than zero, less than stator (1) intracavity diameter and rotor (2) diameter; On described output shaft (4), be provided with flywheel (10).