CN203796404U

CN203796404U - Novel engine

Info

Publication number: CN203796404U
Application number: CN201420132710.5U
Authority: CN
Inventors: 袁政
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-21
Filing date: 2014-03-21
Publication date: 2014-08-27
Anticipated expiration: 2024-03-21

Abstract

A novel engine comprises a stator, a cylinder, pistons and an elastic element. Piston grooves are arranged in the periphery of the stator, the cylinder sleeves the stator and is matched with the stator in a pivoted manner, an inner cylinder wall intercepted from optional radial sections of the cylinder forms a closed contour line, the top end of the contour line forms an upper dead center while the bottom end forms a lower dead center, gradient curves are formed between positions from the upper dead center to the lower dead center as well as from the lower dead center to the upper dead center, and the gradient curves include a gradient opening section and a gradient closing section which are connected in sequence; two combustion chambers arranged side by side are arranged on the cylinder, each combustion chamber is provided with an ignition plug and an oil nozzle inside; the pistons are pivoted in the piston grooves, one ends of the pistons are pivoted inside the piston grooves while the other ends form pressure surfaces, and the elastic element is used for jacking the pistons outwardly. The novel engine is small in size; with a complicated air distribution mechanism in need of being provided with a timing gear, a camshaft, a rocker, an air valve and the like, the engine is simplified in structure, and maintenance is facilitated.

Description

New work engine

Technical field

The utility model relates to a kind of motor, specifically a kind of new work engine.

Background technique

Traditional motor is conventional engine, and its compression stroke, combustion stroke and expansion stroke are all to carry out in single cylinder, therefore, just causes it to have the too much defect of kinetic energy rejection, thereby is difficult to realize High Rotation Speed, and output power is relatively low.In addition, traditional reciprocating-piston engine in the course of the work, between piston and bent axle, produce larger interaction force, this just requires piston and bent axle to have higher intensity, therefore, the size that need to increase piston, bent axle and cylinder body makes up the defect of its strength deficiency, and this just causes the volume of whole motor relatively large.

General rotary engine can overcome the above-mentioned defect of reciprocating-piston engine, but, all there is the problems such as complex structure, burning and blast efficiency are low in current rotary engine, as disclosed rotary engine in the publication number patent documentation that is CN101133236, its structure is comparatively complicated, exists and is difficult to maintenance and the high defect of cost.In addition, also there is the deficiency that rate of combustion is lower in current rotary engine, and this is too long and narrow due to the chamber that its rotary piston coordinates with inboard wall of cylinder block often, and in blast process, producing pressurized gas, to act on the loss of epitrochanterian instantaneous thrust acting relatively large.

In sum, reducing under the prerequisite of motor volume, simplifying the structure of motor, the efficiency of raising engine combustion is current problem in urgent need to solve.

Model utility content

For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of motor, and it can effectively improve combustion efficiency, and have advantages of simple in structure, volume is little.

For achieving the above object, the utility model adopts following technological scheme:

New work engine, comprises,

Stator, the radius of this stator is r; The periphery of stator is provided with piston groove;

Be socketed in stator outside and coordinate with stator in the mode of pivot joint, the central axis of cylinder body and the central axes of stator, the inboard wall of cylinder block of any radial cross section intercepting of cylinder body all forms the profile line of a sealing, the tip portion of this profile line forms a top dead center, bottom forms a lower dead center, distance between top dead center and lower dead center and the central shaft of cylinder body is r, top dead center is to lower dead center, lower dead center to all forming a gradual change camber line between top dead center, in the clockwise direction, gradual change camber line comprises the gradually section of opening that is linked in sequence and the section of closing gradually; On cylinder body, be provided with two firing chambers that are arranged side by side, in firing chamber, be provided with spark plug and oil nozzle, the both sides that are positioned at top dead center on cylinder body are respectively arranged with an air intlet that firing chamber and inner chamber of cylinder block are communicated with and the combustion gas mouth of charging, air intlet and combustion gas charge mouth in the clockwise direction order arrange; The both sides that are positioned at lower dead center on cylinder body are respectively arranged with outlet pipe and the suction tude being communicated with the inner chamber of cylinder body, and outlet pipe and suction tude in the clockwise direction order are arranged;

Be arranged on the piston in piston groove, one end of piston is articulated in piston groove, the other end forms a compression face, cylinder body rotates counterclockwise and just makes piston to cross combustion gas while charging mouthful, compression face is over against the combustion gas mouth of charging, and the outboard end of compression face forms a laminating end with the airtight laminating of inwall of cylinder body;

Be arranged on the elastic element between piston and stator, the elastic stress of this elastic element for providing one piston compression face one end is pressed towards close inboard wall of cylinder block top.

One end of piston groove forms a sliding wall being slidably matched with compression face, and one end relative with sliding wall forms a pivot end, piston groove outside form one with the diapire of piston groove over against and opening portion for supplying piston to produce; On piston with compression face over against one end form one and be articulated in pivot end inner rotation end.

The internal surface of piston, the diapire of piston groove and sliding wall surround Yi Ge inner cavity chamber jointly, are provided with Yi Jiang inner cavity chamber and inner chamber of cylinder block conducting intercommunicating pore on piston.

On cylinder body, be provided with outer vent and inner vent, this outer vent is used for the inner chamber of cylinder body and external environment connect, and when inner cavity chamber turns to inner vent, inner vent is by inner cavity chamber and external environment connect.

In the clockwise direction, the angle that on stator, any point turns to its immediate inner vent from top dead center or lower dead center is θ 1,30≤θ 1≤70; In the clockwise direction, on stator, any point is θ 2,30≤θ 2≤90 from the angle of its immediate outer vent of top dead center or lower dead center rotation.

The charge mouthful rotary timing valve at place of one combustion gas that is positioned at two firing chambers is also installed on cylinder body, this rotary timing valve comprises the pin-joint part being rotationally connected with cylinder body, and be uniformly distributed in a plurality of the first occlusion parts of charging mouthful for blocking combustion gas in periphery, pin-joint part, be uniformly distributed in periphery, pin-joint part for a plurality of second occlusion parts of shutoff air intlet, the second occlusion part and the circumferencial direction of the first occlusion part in pin-joint part stagger mutually, between two first adjacent occlusion parts, form first opening portion, between two second adjacent occlusion parts, form second opening portion, when one of them first occlusion part blocks one of them combustion gas while charging mouthful, first opening part relative with this first occlusion part in another combustion gas charge mouthful and inner chamber of cylinder block between, in same firing chamber, the first occlusion part blocks combustion gas while charging mouthful, and the second opening portion is dodged air intlet.

The beneficial effects of the utility model are:

Than traditional conventional engine, in the situation that power is suitable, volume of the present utility model obviously dwindles, compare existing motor, the utility model is without the complicated distribution device such as timing gear, camshaft, rocking arm, valve is set, simplified the structure of motor, for ease of maintenaince maintenance.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is sectional view of the present utility model;

Fig. 3 is the zoomed-in view at A place in Fig. 2;

Fig. 4 is the inner surface contour schematic diagram of cylinder body in Fig. 1;

Fig. 5 is the structural representation of the rotary timing valve of the utility model.

Embodiment

Below, by reference to the accompanying drawings and embodiment, the utility model is described further:

As Fig. 1, 2, shown in 3, for a kind of motor of the present utility model, it comprises cylinder body 10, stator 20, and six pistons 30 and elastic element, wherein, the inwall of the cylinder body 10 of any radial cross section intercepting of cylinder body 10 all forms the profile line of a sealing, the tip portion of this profile line forms a top dead center a, bottom forms a lower dead center b, distance between top dead center a and lower dead center b and the central shaft of cylinder body 10 is r, top dead center a is to lower dead center b, lower dead center b is to all forming a gradual change camber line between top dead center a, be camber line ab, camber line ba is gradual change camber line, its the two shape is consistent, on camber line ab, there is a summit c, on camber line ba, there is a summit d, wherein, in the clockwise direction, camber line ac is the section of opening gradually, the distance that is the central shaft o of itself and cylinder body increases gradually, in the clockwise direction, camber line cb is the section of closing gradually, and the distance of the central shaft o of itself and cylinder body reduces gradually, and same, camber line bd is gradually the open section consistent with camber line ac shape, and camber line da is gradually the close section consistent with camber line cb shape.

On cylinder body 10, be provided with two firing chambers that are arranged side by side 12, in firing chamber 12, be provided with spark plug 123 and oil nozzle 122, the both sides that are positioned at top dead center a on cylinder body 10 are respectively arranged with an air intlet 121 that firing chamber 12 and cylinder body 10 inner chambers are communicated with and combustion gas and charge mouthfuls 124, air intlet 121 and combustion gas charge mouthfuls 124 in the clockwise direction order arrange, be the left side that air intlet 121 is positioned at top dead center a in diagram, charge mouthful 124 right sides that are positioned at top dead center a of combustion gas.

The both sides that are positioned at lower dead center b on cylinder body 10 are respectively arranged with outlet pipe 14 and the suction tude 13 being communicated with the inner chamber of cylinder body 10, outlet pipe 14 and suction tude 13 in the clockwise direction order are arranged, be the right side that outlet pipe 14 is positioned at lower dead center in diagram, 13 left sides that are positioned at lower dead center b of suction tude.Outlet pipe 14 and suction tude 13 can also be arranged on cylinder body 10 two end part for the end cap of sealed cylinder block 10.

Stator 20 is arranged in the inner chamber of cylinder body 10, it is by a rotating shaft and cylinder body 10 pivot joints, the axle core of rotating shaft overlaps with the central shaft o of above-mentioned cylinder body 10, on stator 20, be fixed with a base 22, above-mentioned rotating shaft is arranged on base top, thereby, cylinder body 10 can be rotated around stator 20, the radius of stator 20 is similarly r; The periphery of stator 20 is provided with six piston grooves 21, and these six piston grooves 21 are around central axis (being the central shaft o of the cylinder body 10) circumference array of stator 20.Six pistons 30 are arranged in six piston grooves 21 one to one, and piston 30 is the piston of shaking the head.Piston 30 is specific as follows with the assembling of piston groove 21: piston 30 one end form a compression face 32, on piston 30 with compression face 32 over against one end form one and rotate end 31, one end of piston groove 21 forms a sliding wall 212 being slidably matched with compression face 32, the other end forms one and sets and pivot joint pivot end 211 in the inner for rotating end 31, the outside of piston groove 21 form one with the diapire 213 of piston groove 21 over against opening portion, this opening portion is for producing from piston groove 21 for piston 30, the outboard end of compression face 32 forms a laminating end 35 with the airtight laminating of inwall of cylinder body 10.Elastic element is one to be arranged in the spring (not shown) of piston groove 21, it is arranged between stator 20 and piston 30, this spring for provide one by piston 30 compression face 32 one end towards the elastic stress of pressing near cylinder body 10 inwalls tops, thereby make airtight cooperation of inwall of laminating end 35 and cylinder body 10.It should be noted that, elastic element of the present utility model can also be other forms, for example can be arranged on the torsion spring between stator 20 and piston 30, the central shaft of torsion spring is consistent with the central axis that piston 30 rotates with respect to stator 20, torsion spring two free ends are connected to respectively on piston 30 and stator 20, and elastic element also can be arranged on the elastic block rubber between piston 30 and stator 20.In a word, as long as elastic element can provide piston 30 elastic stress that outwards press on top.

Cylinder body 10 rotates counterclockwise around stator 20, and make piston 30 just cross combustion gas to charge mouthfuls 124 o'clock, compression face 32 charges mouthfuls 124 over against combustion gas, after the interior air-fuel mixture gas burning expansion of firing chamber 12, just in time compression face 32 is exerted pressure, piston 30 is applied to the moment clockwise rotating, because cylinder body 10 rotates with respect to piston 30 and stator 20, therefore, when combustion gas is expanded, the instantaneous increase of air pressure in the enclosed space that compression face 32 and cylinder body 10 inwalls of stator 20, piston 30 form, thus cylinder body 10 is rotated counterclockwise.

In the situation that cylinder body 10 rotates, piston 30 can produce under the effect of spring from piston groove 21, when the inwall compressing that is subject to cylinder body 10, piston 30 can be towards the interior rotation of piston groove 21, piston 30 is consistent with the shape of piston groove 21, that is, and and in cylinder body 10 rotation processes, when piston 30 is positioned at top dead center a or lower dead center b place, because top dead center a equates with the radius of stator 20 with the radius of the inboard wall of cylinder block at lower dead center b place, now, piston 30 is contained in piston groove 21 completely.

In order to ensure piston 30, can from piston groove 21, produce or by the inwall of cylinder body 10, be pushed back piston groove 21 smoothly smoothly; on piston 30, be provided with an intercommunicating pore 36; this intercommunicating pore 36 is extended to the outer surface 34 of piston 30 by the internal surface 33 of piston 30; the internal surface 33 of piston 30, the diapire 213 of piston groove 21 and sliding wall 212 surround Yi Ge inner cavity chamber jointly; intercommunicating pore 36Jiang Gai inner cavity chamber is communicated with the inner chamber of cylinder body 10; thereby make the pressure of inner cavity chamber and the chamber pressure of cylinder body 10 remain consistent; thus, can not affect the radial wobble of piston 30.

On cylinder body 10, be provided with two outer vents 15 and two inner vents 16, outer vent 15 is for by the inner chamber of cylinder body 10 and external environment connect; In engine working process, when above-mentioned inner cavity chamber turns to inner vent 16, inner vent 16Jiang inner cavity chamber and external environment connect.

The inner vent 16 corresponding with top dead center a and the particular location of outer vent 15 are as follows: in the clockwise direction, the angle that on stator 20, any point turns to its immediate inner vent from top dead center or lower dead center with respect to cylinder body 10 is θ 1,30≤θ 1≤70, be shown in Fig. 3, the center of circle e of inner vent 16, the angle between straight line oe and straight line oa is above-mentioned θ 1.In the clockwise direction, the angle that on stator, any point turns to its immediate outer vent from top dead center or lower dead center with respect to cylinder body 10 is θ 2,30≤θ 2≤90, shown in Fig. 3, the center of circle f of outer vent 15, the angle between straight line of and straight line oa is above-mentioned θ 2.The inner vent 16 corresponding with lower dead center b and the position of outer vent 15 and the position relationship between lower dead center b are same as described above, do not do repeat specification here.

In conjunction with Fig. 4, the charge rotary timing valve 125 at mouthful 124 places of one combustion gas that is positioned at two firing chambers 12 is also installed on cylinder body 10, this rotary timing valve 125 comprises the pin-joint part 1251 being rotationally connected with cylinder body 10, and be uniformly distributed in 1251 peripheries, pin-joint part for blocking charge a plurality of the first occlusion parts 1252 of mouthfuls 124 of combustion gas, be uniformly distributed in 1251 peripheries, pin-joint part for a plurality of second occlusion parts 1254 of shutoff air intlet 121, 1251 circumferencial direction staggers mutually in pin-joint part for the second occlusion part 1254 and the first occlusion part 1252, between two first adjacent occlusion parts 1252, form first opening portion 1253, between two second adjacent occlusion parts 1254, form second opening portion 1255, when one of them first occlusion part 1252 blocks one of them combustion gas, charge mouthfuls 124 time, first opening portion 1253 relative with this first occlusion part 1252 another combustion gas charge mouthfuls 124 and cylinder body 10 inner chambers between, in same firing chamber 12, the first occlusion part 1252 blocks combustion gas charges mouthfuls 124 o'clock, and the second opening portion 1255 is dodged air intlet 121.

In the utility model working procedure, cylinder body 10 rotates counterclockwise, and while just making piston 30 turn over top dead center a, one of them firing chamber 12 internal explosion acting, piston 30 is applied to the moment clockwise rotating, cylinder body 10 is applied to counterclockwise moment of rotation, cylinder body 10 is rotated further, this piston 30 starts the waste gas producing after extruding burning, and waste gas is drained into external environment from outer vent 15 and inner vent 16, after having done work in above-mentioned firing chamber, the firing chamber 12 that rotary timing valve 125 completes above-mentioned acting is closed, by air intlet 121 to this inner input compressed-air in firing chamber 12, prepare blast acting next time, simultaneously, cylinder body 10 rotates, while making next piston 30 just cross top dead center a, the combustion gas of another firing chamber 12 is charged and mouthfuls 124 is opened, the moment that these firing chamber 12 internal explosion actings produce continues to put on this next one piston 30, and continue cylinder body 10 to apply the moment rotating counterclockwise,

When cylinder body 10 turns to piston 30 near the position of lower dead center b, the waste gas that blast acting produces all drains only via outlet pipe 14, when this piston 30 continues to cross lower dead center b, the volume of the chamber surrounding due to this piston 30 and cylinder body 10 and stator 20 increases gradually, therefore, air enters into this chamber via suction tude 13, when piston 30 is crossed summit d, the volume of this chamber dwindling gradually, the air being inhaled into is compressed, and finally through air intlet 121, be extruded in corresponding firing chamber 12, the in the situation that of every rotation one circle of cylinder body 10, six equal pressurizeds of piston 30 once, that is to say, the every rotation of cylinder body 10 one week, each firing chamber 12 is all to cylinder body 10 acting three times, therefore, the utility model is in the every rotation of cylinder body 10 in the situation that of one week, can continuous doing work six times, thereby improved greatly the efficiency of motor.

Doing work respectively three times in each firing chamber 12, because stator 20 of the present utility model is at every rotation one circle, does work six times, therefore, can improve greatly the efficiency of motor.In technique scheme, also can increase firing chamber 12 is set at b place, cylinder body lower end, make each piston 30 of motor of the present utility model all do work twice in the situation that cylinder body rotates one week, further improve the volume-power ratio of this motor.

Model utility people is by contrasting discovery with existing reciprocating-piston engine:

1, because piston of the present utility model no longer bears, promote the push and draw force that bent axle rotates, the structure of piston is simplified greatly, the requirement of strength of piston material is reduced greatly, and the vibration of whole mechanism in operation process is little, noise is little.

2, the utility model structure is simple in structure and volume is little, easy-maintaining, easily maintenance, and be beneficial to automobile engine nacelle and carry out the improvement of other associated components and the layout of other useful mechanisms.The utility model piston structure is simple, size is little, and cost is low, easily changes.

3, power is exported equilibrium, is compacted: at working stroke, when beginning explosive force is large, the stressed sectional area of piston is little; Acting latter end explosive force hour piston lifting surface area is large, so just makes power output balanced; The every rotation of the utility model cylinder body one week, continuous doing work six times, an expansion stroke is when acting end, and next new expansion stroke just in time starts.

4, conventional engine, moving in order to improve, often adopt the way that increases number of cylinders, but when number of cylinders increases, mechanical friction loss is increasing, another, because increasing with number of cylinders, connecting rod quantity also increases, and causes bent axle more and more longer, has increased the harsh requirement of the antitorque coefficient of bent axle to crankshaft material.And the utility model power is just exported very homogeneous, the problems referred to above that do not exist reciprocating-piston engine to exist.

5, conventional reciprocating reciprocating engine, in air inlet---compression stage is subject to the larger resistance of calming the anger, and compression ratio is larger, and the negative work that compression stage consumes is larger.And the utility model is in air inlet---compression stage, piston is just being met the sectional area of calming the anger turning to and is also being reduced gradually, therefore whole gas pressuring stroke, the suffered resistance of calming the anger of piston is little, the merit of calming the anger of consumption is few, thereby has improved effective output torque and effective output.

The resistance of 6, the utility model air inlet---compression stroke is little, and therefore, its efficiency when low, medium speed (below 3000 revs/min) is apparently higher than conventional engine.Therefore, the utility model is more suitable in car urban traffic situation.

8, traditional reciprocating-piston engine need to arrange a set of oil spout---ignition mechanism in each cylinder, and the utility model only need to arrange oil spout near cylinder ends---and ignition mechanism, has reduced the maintenance cost in manufacture cost and use.

In addition, model utility people also compares the utility model and existing triangle motor, finds the utlity model has following characteristic:

1, a high major reason of triangle engine consumption: make a normal to its rotor end-face from center of rotation, at working stroke, normal both sides are subject to the gaseous-pressure of contrary rotation direction, thereby, considerable part effective power is cancelled, and the utility model does not exist this problem.

2, the piston head of existing triangle motor is sharp stupefied shape, can only arrange a Stamping Steel Ribbon, and its sealing effect is poor, and piston head of the present utility model can design to such an extent that circle is flat, can arrange many Stamping Steel Ribbons, and sealing effect is better.

3, the admission space that the utility model inner cavity chamber, outer chamber add up to is large, can realize the compression ratio more much higher than wankel engine, more effectively improves fuel efficiency and power output.

4, the driving mode (tooth is than 3:1) of triangle motor gearwheel band small gear, its moment of torsion is reduced greatly, and the utility model is just the opposite, and the common reciprocating-piston engine of torque ratio is obviously large, and torque ratio triangle motor is more much bigger.

5, the utility model, without eccentric structure is set, can reduce cylinder body impact force to stator in rotation process, thereby reduces the vibration of motor.

6, the piston of triangle motor and driving gear connect together, if need to change piston, with high costs, the utility model piston structure is simple, size is little, and cost is low, easily change.

7, wankel engine air inlet---compression stroke, it is just meeting the sectional area large (sectional area of calming the anger than reciprocating-piston engine is also large) of calming the anger turning to, thereby wankel engine air inlet---compression stroke kinetic energy (power, moment of torsion) loss is large, and this motor is because of air inlet---the resistance of compression stroke is little, thereby kinetic energy (power, moment of torsion) loss ratio triangle motor is significantly little.

The utility model and existing vane motor are compared, find the utlity model has following characteristic:

1, there is following defect in vane motor: in (1) running, form the fierce wiping of cutting to pieces between the back of the body loin of vane stress and the stupefied limit of support zone, rotor upper end; And blade lower curtate and the formation scraping of rotor respective support portion, so blade easily damages.(2) comparatively thin blade, is difficult to many Stamping Steel Ribbons of reasonable Arrangement, and the utility model motor adopts the piston of shaking the head not deposit above-mentioned problem.

2, compare vane motor, the utility model is because having adopted inside and outside chamber design, and its " cylinder " volume and compression ratio all greatly improve; And under same size, " cylinder " of the present utility model volume is larger, thereby the power under same size, moment of torsion are also much larger.

To one skilled in the art, can make other various corresponding changes and deformation according to technological scheme described above and design, and within these all changes and deformation all should belong to the protection domain of the utility model claim.

Claims

1. new work engine, is characterized in that, comprise,

Be socketed in stator cylinder body outside and that coordinate with stator in the mode of pivot joint, the central axis of cylinder body and the central axes of stator, the inboard wall of cylinder block of any radial cross section intercepting of cylinder body all forms the profile line of a sealing, the tip portion of this profile line forms a top dead center, bottom forms a lower dead center, distance between top dead center and lower dead center and the central shaft of cylinder body is r, top dead center is to lower dead center, lower dead center to all forming a gradual change camber line between top dead center, in the clockwise direction, gradual change camber line comprises the gradually section of opening that is linked in sequence and the section of closing gradually; On cylinder body, be provided with two firing chambers that are arranged side by side, in firing chamber, be provided with spark plug and oil nozzle, the both sides that are positioned at top dead center on cylinder body are respectively arranged with an air intlet that firing chamber and inner chamber of cylinder block are communicated with and the combustion gas mouth of charging, air intlet and combustion gas charge mouth in the clockwise direction order arrange; The both sides that are positioned at lower dead center on cylinder body are respectively arranged with outlet pipe and the suction tude being communicated with the inner chamber of cylinder body, and outlet pipe and suction tude in the clockwise direction order are arranged;

2. new work engine as claimed in claim 1, it is characterized in that, one end of piston groove forms a sliding wall being slidably matched with compression face, and one end relative with sliding wall forms a pivot end, piston groove outside form one with the diapire of piston groove over against and opening portion for supplying piston to produce; On piston with compression face over against one end form one and be articulated in pivot end inner rotation end.

3. new work engine as claimed in claim 2, is characterized in that, the internal surface of piston, the diapire of piston groove and sliding wall surround Yi Ge inner cavity chamber jointly, is provided with Yi Jiang inner cavity chamber and inner chamber of cylinder block conducting intercommunicating pore on piston.

4. new work engine as claimed in claim 3, it is characterized in that, be provided with outer vent and inner vent on cylinder body, this outer vent is used for the inner chamber of cylinder body and external environment connect, when inner cavity chamber turns to inner vent, inner vent is by inner cavity chamber and external environment connect.

5. new work engine as claimed in claim 4, is characterized in that, in the clockwise direction, the angle that on stator, any point turns to its immediate inner vent from top dead center or lower dead center is θ 1,30≤θ 1≤70; In the clockwise direction, on stator, any point is θ 2,30≤θ 2≤90 from the angle of its immediate outer vent of top dead center or lower dead center rotation.

6. new work engine as claimed in claim 1, it is characterized in that, the charge mouthful rotary timing valve at place of one combustion gas that is positioned at two firing chambers is also installed on cylinder body, this rotary timing valve comprises the pin-joint part being rotationally connected with cylinder body, and be uniformly distributed in a plurality of the first occlusion parts of charging mouthful for blocking combustion gas in periphery, pin-joint part, be uniformly distributed in periphery, pin-joint part for a plurality of second occlusion parts of shutoff air intlet, the second occlusion part and the circumferencial direction of the first occlusion part in pin-joint part stagger mutually, between two first adjacent occlusion parts, form first opening portion, between two second adjacent occlusion parts, form second opening portion, when one of them first occlusion part blocks one of them combustion gas while charging mouthful, first opening part relative with this first occlusion part in another combustion gas charge mouthful and inner chamber of cylinder block between, in same firing chamber, the first occlusion part blocks combustion gas while charging mouthful, and the second opening portion is dodged air intlet.