CN101624936B - Self compression timing gas occupied suspension piston engine - Google Patents
Self compression timing gas occupied suspension piston engine Download PDFInfo
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- CN101624936B CN101624936B CN200910162557.4A CN200910162557A CN101624936B CN 101624936 B CN101624936 B CN 101624936B CN 200910162557 A CN200910162557 A CN 200910162557A CN 101624936 B CN101624936 B CN 101624936B
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Abstract
The invention discloses a self compression timing gas occupied suspension piston engine, which comprises a cylinder and a piston, wherein the cylinder is formed by a small-section cylinder section and a large-section cylinder section; the piston is formed by a small-section piston section and a large-section piston section; the small-section piston section is arranged in the small-section cylinder section in a non-contact suspension way; the large-section piston section is arranged in the large-section cylinder section in a sealing and sliding way; and the large-section piston section is connected with a connecting rod or a power output mechanism of the engine. The self compression timing gas occupied suspension piston engine can realize the sealing without abrasion in high-temperature state of the engine piston and the cylinder, improve the thermal efficiency and reduce the consumption of fuels while reducing nitric oxide.
Description
Technical field
The present invention relates to engine art.
Background technique
Since motor is born, the efficient sealed of engine chamber is the developer of motor and the most important thing that MANUFACTURER is pursued always.Between Modern Engine piston and cylinder liner, by the setting of oil lubricating piston ring, make slipper seal between piston and cylinder liner, this structure has increased substantially the sealing of motor really.But due to cylinder liner and piston and and piston ring between there is high temperature sliding friction, so piston, piston ring especially the material require of cylinder liner there is quite high heat-resistant antifriction performance.In order to maintain the low frictional properties of the sealing of engine chamber, the persistency of sealing, engine life and cylinder and piston space, cylinder, piston and rings just must adopt high abrasion resisting material to make, and adopt machine oil to be lubricated.The existence of machine oil has determined that the operating temperature of air cylinder sleeve of engine and piston must remain on reduced levels (Modern Engine is between 400～500 ℃).In the structure of conventional engines, this temperature cannot improve again, otherwise just may occur the rotten problems such as lubrication, cylinder liner fusing, piston heat waste that lose of machine oil.Yet, as everyone knows, in order to maintain this lower temperature between piston and cylinder liner, will force motor cooling, so that the energy of fuel 30% left and right will flow out acting system entered environment by cylinder sleeve, piston and low-qualityization of cylinder cap, form the little low-quality waste heat of value.In order efficiently to utilize this part appreciable energy, need to invent a kind of novel motor and solve this difficult problem.
Summary of the invention
In order to overcome above-mentioned defect, the invention discloses a kind of self compression timing gas occupied suspension piston engine.The object of the present invention is achieved like this:
A kind of self compression timing gas occupied suspension piston engine, comprise cylinder and piston, described cylinder is made as by small bore cylinder section and large-section cylinder section and forms, described piston is made as by small bore piston section and large-section piston section and forms, described small bore piston section non-contact suspends and is arranged in described small bore cylinder section, the piston section sealing of described large-section is slidably arranged in the cylinder section of described large-section, and described large-section piston section is connected with connecting rod or with engine power output mechanism; In the boundary of described small bore cylinder section and described large-section cylinder section, described small bore cylinder section or in the cylinder section of described large-section, establish cylinder body gas channel, described cylinder body gas channel is directly or indirectly communicated with gas introduction tube through timing air control valve.
Described gas introduction tube is communicated with occupy-place gas source.
Described occupy-place gas source is made as source nitrogen, source of water vapor or Poor oxygen gas source.
Described cylinder body gas channel is communicated with pressure balancing tank through timing air control valve, and described pressure balancing tank is communicated with described gas introduction tube.
Described gas introduction tube is communicated with the air outlet flue of motor.
Described timing air control valve is opened when described engine exhaust strokes starts, and is held open state, until aspirating stroke is closed while finishing.
In the cylinder section of described large-section, establish cooling jacket.
Described timing air control valve is made as electromagnetic type, mechanical type or hydraulic type.
At described large-section piston Duan Shangshe piston packing ring, and/or establish cylinder seal ring in the cylinder section of described large-section.
Residual volume by changing gap between small bore cylinder section and small bore piston section, large-section cylinder section is (when the residual volume here refers to that piston is positioned at top dead center, air chamber space between large-section cylinder section and large-section piston section) section and between small bore piston section and large-section piston section is poor, can adjust the amount that engine exhaust exists between the outer surface of small bore piston section and the internal surface of small bore cylinder section, with reach reduce motor in expansion stroke in above-mentioned gap the object of the amount of formed nitrogen oxide.
In being provided with the structure of cylinder body gas channel, the amount that can enter cylinder by adjusting occupy-place gas, thereby adjust the intensity of cooling for small bore piston section and small bore cylinder section, and by adjusting the amount that between the outer surface of small bore piston section and the internal surface of small bore cylinder section, occupy-place gas exists, can make motor reach optimum Working.
Due to not contact between small bore cylinder section and small bore piston section, so small bore cylinder section and small bore piston section can be made as to cylinder and the piston being made by exotic material, thereby small bore cylinder section and small bore piston section are worked at quite high temperature, the heat loss that reduces motor acting working medium, improves engine efficiency.Moreover, in structure disclosed in this invention, between piston and cylinder, seal slip contact-segment in non high temperature environment, so the linear velocity of piston can increase substantially, can improve the rotating speed of motor, thereby improve power per liter and the efficiency of motor.
In the present invention, slipper seal contact between large-section cylinder section and large-section piston section, not only seals, and also plays the role of positioning, and guarantees not contact, do not collide between small bore cylinder section and small bore piston section.
In the present invention, disclosed motor not only can be for two stroke engine, four stroke engine, miller cycle engine, can also be for " thermomechanics miller cycle engine ".So-called " thermomechanics miller cycle engine " refers to by adjusting fresh air and the ratio of staying the waste gas in cylinder, and realize the volume that does work in waiting two-stroke engine, is greater than admission space.So-called grade in the process that stroke refers to air-breathing, compression, acting and four strokes of exhaust, piston movement distance all equates.
The position that non-contact suspension of the present invention arranges the non-contact suspension setting referring between cylinder and piston neither comes in contact and maintains quite little gap.
Occupy-place gas source in the present invention refers to no oxygen body source or Poor oxygen gas source.No oxygen body source can be source nitrogen or source of water vapor, and wherein, source of water vapor refers to external source of water vapor (as the water vapour of the generations such as boiler), can be also the source of water vapor of utilizing engine exhaust heat to produce.Poor oxygen gas source can be the exhaust gas source that motor produces.Occupy-place gas source can or cover a gas source for occupy-place gas source with no pressure.
In the present invention, between the boundary of the boundary of described small bore cylinder section and described large-section cylinder section and small bore piston section and described large-section piston section, there is air chamber, aspirating stroke at motor, timing air control valve is opened always, the volume of air chamber is along with the continuous increase of moving down of piston, and occupy-place gas enters air chamber through cylinder body gas channel; Compression stroke at motor, timing air control valve is closed always, the volume of air chamber is along with moving constantly and reduce on piston, after occupy-place gas in air chamber is compressed, occupies the space between the outer surface of engine piston and the internal surface of cylinder, makes fresh air cannot enter above-mentioned space; At the expansion stroke of motor, because the space between the outer surface of engine piston and the internal surface of cylinder is occupied by occupy-place gas, thus the generation of minimizing harmful gas (as nitrogen oxide).
In addition, occupy-place gas is entering into the process in the space of the outer surface of small bore piston section and the formation of the internal surface of small bore cylinder section from cylinder body gas channel, can be the heat of near cylinder cylinder body gas channel and piston again pump in firing chamber, cooling heat remains in acting system, improved the utilization ratio of heat, and unlike conventional engines, for unnecessary heat is forced to be dispersed in atmosphere for the parts of cooling mutual motion, waste the energy.And, because the occupy-place effect of occupy-place gas, fresh air can not be squeezed into above-mentioned space, the volume of firing chamber can not be subject to the size in above-mentioned space affect and relatively remain unchanged, simultaneously because occupy-place gas is filled with in above-mentioned space, play the effect that increases firing chamber gaseous mass, not only can not reduce the acting ability of motor, can strengthen on the contrary the acting ability of motor.
The present invention has following actively useful effect:
1, the present invention is simple in structure, is convenient to machining, and cost is low.
2, the present invention can realize engine piston and cylinder liner can not only seal but also do not wear and tear under the condition of high temperature, can significantly improve the thermal efficiency.
3, because the occupy-place effect of occupy-place gas-be occupy-place gas has occupied the space that cylinder inner wall and piston outer wall form, even under High Temperature High Pressure, in this space, do not produce nitrogen oxide, good environmental protection yet.
4, occupy-place gas is entering into the process in the space of the outer surface of engine piston and the formation of the internal surface of cylinder from cylinder body gas channel, can be near the heat of cylinder and piston cylinder body gas channel again pump in the top and firing chamber of cylinder and piston, cooling heat remains in acting system, when cooling action is played in cylinder and piston seal slide-and-guide position, improved the utilization ratio of heat.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of self compression timing gas occupied suspension piston engine provided by the invention;
Fig. 2 has increased the structural representation of cylinder body gas channel on the basis of Fig. 1;
Fig. 3 is that in Fig. 2, piston is positioned at the structural representation between top dead center and lower dead center;
Fig. 4 has increased the structural representation of pressure balancing tank on the basis of Fig. 2;
Fig. 5 is the structural representation that gas introduction tube is communicated with the air outlet flue of motor on the basis of Fig. 4;
Fig. 6 is the structural representation that has increased pressure balancing tank control valve on the basis of Fig. 5.
Accompanying drawing number
1. cylinder 101. small bore cylinder section 102. large-section cylinder section
2. piston 201. small bore piston section 202. large-section piston sections
3. the air outlet flue 4. connecting rod 5. timing air control valves of motor
6. pressure balancing tank 7. cylinder body gas channel 8. cooling jackets
10. pressure balancing tank control valve 11. gas introduction tube 12. piston packing rings
13. cylinder seal rings
Embodiment
Self compression timing gas occupied suspension piston engine as depicted in figs. 1 and 2, comprise cylinder 1 and piston 2, described cylinder 1 is made as by small bore cylinder section 101 and large-section cylinder section 102 and forms, described piston 2 is made as by small bore piston section 201 and large-section piston section 202 and forms, described small bore piston section 201 non-contacts suspend and are arranged in described small bore cylinder section 101, piston section 202 sealings in described large-section are slidably arranged in described large-section cylinder section 102, described large-section piston section 202 is connected with connecting rod 4 or with engine power output mechanism, in described large-section cylinder section 102, establish cooling jacket 8, described cooling jacket 8 is for forcing cooling to large-section cylinder section 102, in described large-section piston section 202, establish piston packing ring 12, in described large-section cylinder section 102, establish cylinder seal ring 13.
Self compression timing gas occupied suspension piston engine as shown in Figure 3, on the basis of the motor shown in Fig. 1, in the boundary of described small bore cylinder section 101 and described large-section cylinder section 102, described small bore cylinder section 101 or in described large-section cylinder section 102, establish cylinder body gas channel 7, described cylinder body gas channel 7 is directly or indirectly communicated with gas introduction tube 11 through timing air control valve 5.Described timing air control valve 5 is opened when described engine exhaust strokes starts, and is held open state, until aspirating stroke is closed while finishing.Described timing air control valve 5 can be made as electromagnetic type, mechanical type or hydraulic type.In addition, cylinder body gas channel 7 also can be arranged in described small bore cylinder section 101 or in described large-section cylinder section 102.
Self compression timing gas occupied suspension piston engine as shown in Figure 4, on the basis of the motor shown in Fig. 3, increased pressure balancing tank 6, described cylinder body gas channel 7 is communicated with pressure balancing tank 6 through timing air control valve 5, and described pressure balancing tank 6 is communicated with described gas introduction tube 11.
Self compression timing gas occupied suspension piston engine as shown in Figure 5, is on the basis of the motor shown in Fig. 4, and described gas introduction tube 11 is communicated with the air outlet flue 3 of motor.
Self compression timing gas occupied suspension piston engine as shown in Figure 6, on the basis of the motor shown in Fig. 5, on gas introduction tube 11, increased pressure balancing tank control valve 10, when can starting in the exhaust stroke of motor, opens described pressure balancing tank control valve 10, when exhaust stroke finishes, close, can avoid like this waste gas of storage in pressure balancing tank 6 via the air outlet flue 3 of motor, to discharge again.
Claims (10)
1. a self compression timing gas occupied suspension piston engine, comprise cylinder (1) and piston (2), it is characterized in that: described cylinder (1) is made as by small bore cylinder section (101) and large-section cylinder section (102) and forms, described piston (2) is made as by small bore piston section (201) and large-section piston section (202) and forms, described small bore piston section (201) non-contact suspends and is arranged in described small bore cylinder section (101), described large-section piston section (202) sealing is slidably arranged in described large-section cylinder section (102), described large-section piston section (202) is connected with engine power output mechanism, boundary, described small bore cylinder section (101) in described small bore cylinder section (101) and described large-section cylinder section (102) above or in described large-section cylinder section (102) are established cylinder body gas channel (7), and described cylinder body gas channel (7) is directly or indirectly communicated with gas introduction tube (11) through timing air control valve (5).
2. a self compression timing gas occupied suspension piston engine, comprise cylinder (1) and piston (2), it is characterized in that: described cylinder (1) is made as by small bore cylinder section (101) and large-section cylinder section (102) and forms, described piston (2) is made as by small bore piston section (201) and large-section piston section (202) and forms, described small bore piston section (201) non-contact suspends and is arranged in described small bore cylinder section (101), described large-section piston section (202) sealing is slidably arranged in described large-section cylinder section (102), described large-section piston section (202) is connected with connecting rod (4), boundary, described small bore cylinder section (101) in described small bore cylinder section (101) and described large-section cylinder section (102) above or in described large-section cylinder section (102) are established cylinder body gas channel (7), and described cylinder body gas channel (7) is directly or indirectly communicated with gas introduction tube (11) through timing air control valve (5).
3. self compression timing gas occupied suspension piston engine as claimed in claim 1 or 2, is characterized in that: described gas introduction tube (11) is communicated with occupy-place gas source.
4. self compression timing gas occupied suspension piston engine as claimed in claim 3, is characterized in that: described occupy-place gas source is made as source nitrogen, source of water vapor or Poor oxygen gas source.
5. self compression timing gas occupied suspension piston engine as claimed in claim 1 or 2, it is characterized in that: described cylinder body gas channel (7) is communicated with pressure balancing tank (6) through described timing air control valve (5), described pressure balancing tank (6) is communicated with described gas introduction tube (11).
6. self compression timing gas occupied suspension piston engine as claimed in claim 1 or 2, is characterized in that: described gas introduction tube (11) is communicated with the air outlet flue (3) of motor.
7. self compression timing gas occupied suspension piston engine as claimed in claim 1 or 2, is characterized in that: described timing air control valve (5) is opened when described engine exhaust strokes starts, and is held open state, until aspirating stroke is closed while finishing.
8. self compression timing gas occupied suspension piston engine as claimed in claim 1 or 2, is characterized in that: described timing air control valve (5) is made as electromagnetic type, mechanical type or hydraulic type.
9. self compression timing gas occupied suspension piston engine as claimed in claim 1 or 2, is characterized in that: in described large-section cylinder section (102), establish cooling jacket (8).
10. self compression timing gas occupied suspension piston engine as claimed in claim 1 or 2, it is characterized in that: in described large-section piston section (202), establish piston packing ring (12), and/or establish cylinder seal ring (13) in described large-section cylinder section (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910162557.4A CN101624936B (en) | 2009-08-03 | 2009-08-03 | Self compression timing gas occupied suspension piston engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910162557.4A CN101624936B (en) | 2009-08-03 | 2009-08-03 | Self compression timing gas occupied suspension piston engine |
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| CN101624936A CN101624936A (en) | 2010-01-13 |
| CN101624936B true CN101624936B (en) | 2014-03-19 |
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| CN200910162557.4A Active CN101624936B (en) | 2009-08-03 | 2009-08-03 | Self compression timing gas occupied suspension piston engine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102644509A (en) * | 2012-06-05 | 2012-08-22 | 江苏田娘农业科技有限公司 | Efficient air cylinder piston power system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1851530A (en) * | 1929-10-02 | 1932-03-29 | Stewart Walter Scott | Internal combustion engine |
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2009
- 2009-08-03 CN CN200910162557.4A patent/CN101624936B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1851530A (en) * | 1929-10-02 | 1932-03-29 | Stewart Walter Scott | Internal combustion engine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-188956A 2006.07.20 |
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Effective date of registration: 20200628 Address after: 215600 No.11 Renmin Road, Leyu Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Zhangjiagang Leyu science and Technology Innovation Park Investment Development Co.,Ltd. Address before: 100101, Beijing, Chaoyang District Beiyuan Road, No. 168, Sheng Sheng building, 24 floor Patentee before: Jin Beibiao |
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