CN101624936A - Self compression timing gas occupied suspension piston engine - Google Patents
Self compression timing gas occupied suspension piston engine Download PDFInfo
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- CN101624936A CN101624936A CN200910162557A CN200910162557A CN101624936A CN 101624936 A CN101624936 A CN 101624936A CN 200910162557 A CN200910162557 A CN 200910162557A CN 200910162557 A CN200910162557 A CN 200910162557A CN 101624936 A CN101624936 A CN 101624936A
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- section
- piston
- cylinder
- gas
- engine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000725 suspension Substances 0.000 title claims abstract description 25
- 230000006835 compression Effects 0.000 title claims abstract description 24
- 238000007906 compression Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 71
- 238000001816 cooling Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001882 dioxygen Inorganic materials 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
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 was born, the efficient sealed of engine chamber was the developer of motor and the most important thing that MANUFACTURER is pursued always.By the setting of oil lubricating piston ring, make slipper seal between piston and the cylinder liner between modern engine piston and the cylinder liner, this structure has increased substantially the sealing of motor really.But because cylinder liner and piston and and piston ring between have the high temperature sliding friction, so piston, piston ring especially the material require of cylinder liner have quite high heat-resistant antifriction performance.For the sealing of keeping engine chamber, persistency, engine life and the cylinder of sealing and the low frictional properties of piston space, cylinder, piston and piston ring just must adopt high abrasion resisting material to make, and adopt machine oil to be lubricated.The existence of machine oil has determined the operating temperature of air cylinder sleeve of engine and piston must remain on reduced levels (modern motor is between 400～500 ℃).This temperature can't improve again in the structure of conventional engines, otherwise the rotten problems such as lubrication, cylinder liner fusing, piston heat waste that lose of machine oil just may occur.Yet, as everyone knows, in order to keep this lower temperature between piston and the cylinder liner, will force cooling to motor, so that the energy of fuel about 30% will enter environment by cylinder sleeve, piston and low-qualityization of cylinder cap outflow acting system, form the little low-quality waste heat of value.In order efficiently to utilize this part appreciable energy, need a kind of novel engine of invention to solve this difficult problem.
Summary of the invention
In order to overcome above-mentioned defective, 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 constitutes, described piston is made as by small bore piston section and large-section piston section and constitutes, described small bore piston section non-contact suspends and is arranged in the described small bore cylinder section, the piston section sealing of described large-section is slidingly arranged in the cylinder section of described large-section, and described large-section piston section is connected with connecting rod or with the engine power output mechanism.
Establishing the cylinder body gas channel on the boundary of described small bore cylinder section and described large-section cylinder section, the described small bore cylinder section or on the cylinder section of described large-section, described cylinder body gas channel directly or indirectly is communicated with gas introduction tube through the timing air control valve.
Described gas introduction tube is communicated with the 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 the 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 begins, and is held open state, closes when aspirating stroke finishes.
On 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 on the cylinder section of described large-section, establish the cylinder seal ring.
Residual volume by changing gap between small bore cylinder section and the small bore piston section, large-section cylinder section is (when the residual volume here is meant that piston is positioned at top dead center, air chamber space between large-section cylinder section and the large-section piston section) and the section between small bore piston section and the large-section piston section poor, can adjust the amount that engine exhaust exists between the internal surface of the outer surface of small bore piston section and small bore cylinder section, with reach reduce motor in expansion stroke in above-mentioned gap the purpose of the amount of formed nitrogen oxide.
In the structure that is provided with the cylinder body gas channel, can be by adjusting the amount that occupy-place gas enters cylinder, thereby adjust intensity of cooling for small bore piston section and small bore cylinder section, and the amount that occupy-place gas exists between the internal surface of outer surface by adjusting small bore piston section and small bore cylinder section, can make motor reach optimum Working.
Because not contact between small bore cylinder section and the small bore piston section, so small bore cylinder section and small bore piston section can be made as cylinder and the piston that is made by exotic material, thereby small bore cylinder section and small bore piston section are worked under quite high temperature, reduce the heat loss of motor acting working medium, improve engine efficiency.Moreover, in structure disclosed in this invention, sealing slip contact-segment is in the non high temperature environment between piston and cylinder, so the linear velocity of piston can increase substantially, promptly can improve the rotating speed of motor, thereby improves the power per liter and the efficient of motor.
Slipper seal contact between large-section cylinder section and the large-section piston section not only seals among the present invention, also plays the role of positioning, and guarantees not contact, do not collide between small bore cylinder section and the small bore piston section.
Disclosed motor not only can be used for two stroke engine, four stroke engine, miller cycle motor among the present invention, can also be used for " thermomechanics miller cycle motor ".So-called " thermomechanics miller cycle motor " is meant by adjusting fresh air and staying the ratio of the waste gas in the cylinder, does work volume greater than admission space and be implemented in to wait in the two-stroke engine.That strokes such as what is called are meant is air-breathing, in the process of compression, acting and four strokes of exhaust, the piston motion distance all equates.
The position that non-contact suspension of the present invention is provided with the non-contact suspension setting that is meant between the cylinder and piston neither comes in contact and keeps quite little gap.
Occupy-place gas source among the present invention refers to no oxygen body source or Poor oxygen gas source.The 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 generations such as boiler), also can be the source of water vapor of utilizing engine exhaust heat to produce.The Poor oxygen gas source can be the exhaust gas source that motor produces.The occupy-place gas source can cover a gas source or cover a gas source for nothing.
Among the present invention, there is air chamber 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, aspirating stroke at motor, the 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 the cylinder body gas channel; Compression stroke at motor, the timing air control valve is closed always, the volume of air chamber reduces along with moving constantly on the piston, occupies the space between the internal surface of the outer surface of engine piston and cylinder after the occupy-place gas in the air chamber is compressed, and makes fresh air can't enter above-mentioned space; At the expansion stroke of motor,, thereby reduce the generation of harmful gas (as nitrogen oxide) because the space between the internal surface of the outer surface of engine piston and cylinder is by occupy-place gas comprises certificate.
In addition, occupy-place gas is in the process in the space of the internal surface formation of outer surface that enters into small bore piston section from the cylinder body gas channel and small bore cylinder section, can be in the firing chamber the heat of near cylinder the cylinder body gas channel and piston pump again, the heat of cooling remains in the acting system, improved the utilization ratio of heat, and, waste the energy for unnecessary heat is forced to be dispersed in the atmosphere for the parts that cool off mutual motion unlike conventional engines.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 is not influenced by the size in above-mentioned space can and remain unchanged relatively, charge in the above-mentioned space owing to occupy-place gas simultaneously, play the effect that increases the firing chamber gaseous mass, not only can not reduce the acting ability of motor, can strengthen the acting ability of motor on the contrary.
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 that engine piston and cylinder liner can not only seal but also do not wear and tear, and can significantly improve the thermal efficiency under the condition of high temperature.
3, because the occupy-place effect of occupy-place gas--be the space that occupy-place gas has occupied cylinder inner wall and piston outer wall formation,, also do not produce nitrogen oxide, good environmental protection in this space even under High Temperature High Pressure.
4, occupy-place gas is in the process in the space of the internal surface formation of outer surface that enters into engine piston from the cylinder body gas channel and cylinder, can be in the top and firing chamber of cylinder and piston near the heat of cylinder and piston cylinder body gas channel pump again, the heat of cooling remains in the acting system, when cooling action is played at cylinder and piston seal slide-and-guide position, improved the utilization ratio of heat.
Description of drawings
Fig. 1 is the structural representation of a kind of self compression timing gas occupied suspension piston engine provided by the invention;
Fig. 2 is the structural representation that has increased the cylinder body gas channel on the basis of Fig. 1;
Fig. 3 is that piston is positioned at structural representation between top dead center and lower dead center among Fig. 2;
Fig. 4 is the structural representation that has increased 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 the 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 sections 202. large-section piston sections
3. the air outlet flue 4. connecting rods 5. timing air control valves of motor
6. pressure balancing tank 7. cylinder body gas channels 8. cooling jackets
10. pressure balancing tank control valve 11. gas introduction tubes 12. piston packing rings
13. cylinder seal ring
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 constitutes, described piston 2 is made as by small bore piston section 201 and large-section piston section 202 and constitutes, described small bore piston section 201 non-contacts suspend and are arranged in the described small bore cylinder section 101, piston section 202 sealings in described large-section are slidingly arranged in the described large-section cylinder section 102, described large-section piston section 202 is connected with connecting rod 4 or with the engine power output mechanism, on described large-section cylinder section 102, establish cooling jacket 8, described cooling jacket 8 is used for large-section cylinder section 102 is forced cooling, on described large-section piston section 202, establish piston packing ring 12, on described large-section cylinder section 102, establish cylinder seal ring 13.
Self compression timing gas occupied suspension piston engine as shown in Figure 3, be on the basis of motor shown in Figure 1, establishing cylinder body gas channel 7 on the boundary of described small bore cylinder section 101 and described large-section cylinder section 102, the described small bore cylinder section 101 or on the described large-section cylinder section 102, described cylinder body gas channel 7 directly or indirectly is 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 begins, and is held open state, closes when aspirating stroke finishes.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 on the described small bore cylinder section 101 or on the described large-section cylinder section 102.
Self compression timing gas occupied suspension piston engine as shown in Figure 4, be on the basis of motor shown in Figure 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 motor shown in Figure 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, be on the basis of motor shown in Figure 5, on gas introduction tube 11, increased pressure balancing tank control valve 10, when can beginning in the exhaust stroke of motor, opens described pressure balancing tank control valve 10, when exhaust stroke finishes, close, can avoid the waste gas of storage in the pressure balancing tank 6 to discharge via the air outlet flue 3 of motor again like this.
Claims (10)
1, a kind of 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 constitutes, described piston (2) is made as by small bore piston section (201) and large-section piston section (202) and constitutes, described small bore piston section (201) non-contact suspends and is arranged in the described small bore cylinder section (101), described large-section piston section (202) sealing is slidingly arranged in the described large-section cylinder section (102), and described large-section piston section (202) is connected with connecting rod (4) or with the engine power output mechanism.
2, self compression timing gas occupied suspension piston engine according to claim 1, it is characterized in that: boundary, described small bore cylinder section (101) in described small bore cylinder section (101) and described large-section cylinder section (102) upward or on the described large-section cylinder section (102) are established cylinder body gas channel (7), and described cylinder body gas channel (7) directly or indirectly is communicated with gas introduction tube (11) through timing air control valve (5).
3, as self compression timing gas occupied suspension piston engine as described in the claim 2, it is characterized in that: described gas introduction tube (11) is communicated with the occupy-place gas source.
4, as self compression timing gas occupied suspension piston engine as described in the claim 3, it is characterized in that: described occupy-place gas source is made as source nitrogen, source of water vapor or Poor oxygen gas source.
5, as self compression timing gas occupied suspension piston engine as described in the claim 2, it is characterized in that: 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).
6, as self compression timing gas occupied suspension piston engine as described in the claim 2, it is characterized in that: described gas introduction tube (11) is communicated with the air outlet flue (3) of motor.
7, as self compression timing gas occupied suspension piston engine as described in the claim 2, it is characterized in that: described timing air control valve (5) is opened when described engine exhaust strokes begins, and is held open state, closes when aspirating stroke finishes.
8, as self compression timing gas occupied suspension piston engine as described in the claim 2, it 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 according to claim 1 is characterized in that: establish cooling jacket (8) on described large-section cylinder section (102).
10, self compression timing gas occupied suspension piston engine according to claim 1 is characterized in that: establish piston packing ring (12) on described large-section piston section (202), and/or establish cylinder seal ring (13) on 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101624936A true CN101624936A (en) | 2010-01-13 |
| CN101624936B CN101624936B (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910162557.4A Active CN101624936B (en) | 2009-08-03 | 2009-08-03 | Self compression timing gas occupied suspension piston engine |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (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
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
|---|---|
| CN101624936B (en) | 2014-03-19 |
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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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| TR01 | Transfer of patent right |