CN103174512A - Two-stroke engine with oil ring - Google Patents
Two-stroke engine with oil ring Download PDFInfo
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- CN103174512A CN103174512A CN2013101051824A CN201310105182A CN103174512A CN 103174512 A CN103174512 A CN 103174512A CN 2013101051824 A CN2013101051824 A CN 2013101051824A CN 201310105182 A CN201310105182 A CN 201310105182A CN 103174512 A CN103174512 A CN 103174512A
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- black box
- piston
- oil
- stroke engine
- oil ring
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- Pistons, Piston Rings, And Cylinders (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a two-stroke engine with an oil ring. The two-stroke engine with the oil ring is provided with at least one air inlet or one air outlet. The two-stroke engine with the oil ring further comprises a seal assembly, wherein the seal assembly is arranged in a gap between a piston and the surface of an air cylinder which surrounds the piston, the piston slides relative to the seal assembly, the seal assembly is arranged on a working surface of the air cylinder, and is used for separating an engine oil chamber from an air control system with the air inlet or the air outlet, and the seal assembly comprises a first component and a second component, wherein the first component is arranged below the working surface to ensure air tightness, and a part of the second component is embedded into the first component to ensure oil tightness. The two-stroke engine with the oil ring has the advantages that when the seal assembly is used, on one side, air can be sealed, and on the other side, lubricating oil can also be controlled, the structure is simple, a complex lubricating process can be avoided, and excessive consumption of engine oil is avoided.
Description
Technical field
The present invention relates to motor, be specifically related to a kind of two stroke engine with oil ring.
Background technique
As everyone knows, a work cycle of two stroke IC engine only needs two strokes, so a work cycle, and bent axle only need turn around.That uses the two-stroke technology has a high-speed small-size petrol engine, and is used for large-scale marine engine.Generally, the fuel of the type motor is supplied with the mixture for fuel oil and machine oil, and wherein machine oil is used for lubricated.Yet having the fuel of two stroke IC engine to supply with is not the mixture of fuel oil and machine oil yet, but the lubricated and consumption of lubricating oil of this type of motor perfect solution without comparison always.
Chinese patent CN1076004A discloses a kind of Two stroke engine, and its uses bearing shell formula crankshaft bearing, and adopts reusable oil lubrication system, and cylinder cap, cylinder body adopt conventional two-stroke model structure, without valve, still rely on piston to control gas port.There is the scavenging pump chamber of a better performances at the piston back.Ventilation is asymmetric scavenging timing, and uses pure air scavenging.Fuel oil is closed at gas port, sprays into cylinder during compression stroke.Have simple in structurely, component increase few, and structure is also without large change.The characteristics such as and performance is higher, and unfailing performance is better, and noxious emission is less.Compare with the application, herewith there is larger difference in the concrete structure of patent.
Chinese patent CN2462077Y discloses the complete separating lubricating system of a kind of two stroke engine, its main body is for having several oil inlet holes on casing wall, from then on machine oil thrown in oil ring on piston in the hole, come lubricating piston-ring and connecting rod small end by the oil duct between oil ring groove and piston pin hole again, left and right bearing and connnecting rod big end are lubricated by oil-collecting disk and oil duct in the bottom.This lubrication system of separating fully: can make machine oil fully autotelic lubricated, Oil Consumption is little, because machine oil is no longer sneaked into participation burning in the firing chamber, so as four stroke engine, the pure gasoline that only burns in cylinder pollutes littlely, can make the two stroke engine exhaust no longer emit blue smoke.There is significantly difference in both on structure and technical problem to be solved.
Summary of the invention
For the problems referred to above that existing two stroke engine exists, the invention provides a kind of complicated lubricated and too high two stroke engine with oil ring of consumption of lubricating oil of avoiding simultaneously.
The technological scheme that the present invention adopts for achieving the above object is:
A kind of two stroke engine with oil ring, at least be provided with a suction port or relief opening, wherein, comprise black box, described black box is located at piston and around in the gap between the cylinder surface around it, described piston slides with respect to described black box, described black box is arranged in cylinder bearing surface to separate engine oil chamber and the gas control system with suction port or relief opening, and described black box comprises is located at the second element that guarantees bubble-tight the first element under described working surface and be partially submerged into described the first element assurance oil-tightness.
Above-mentioned two stroke engine with oil ring, wherein, be installed on dividing plate on described impeller, described the first element can be the U-shaped structure, described the second element is positioned in described U-shaped structure by elastic member, and described U-shaped structure comprises the first vertical bar and the second vertical bar, and described the first vertical bar is longer than described the second vertical bar, described the first vertical bar is arranged as towards the firing chamber direction, and described the second vertical bar is arranged as towards engine oil chamber.
Above-mentioned two stroke engine with oil ring, wherein, described black box can be located on the cylindricality periphery of described piston, and the sliding space of described black box can be set to less than 10 millimeters from suction port or relief opening.
Above-mentioned two stroke engine with oil ring, wherein, described piston has two piston rings, described black box and at least one described piston ring be arranged in engine oil chamber and have suction port or the gas control system of relief opening between, the range of movement of described piston ring is no more than described black box.
Above-mentioned two stroke engine with oil ring, wherein, described piston and described black box contacted zone and the neighboring area applying coating that surpasses described black box are with the wear prevention of reducing friction.
Above-mentioned two stroke engine with oil ring, wherein, the part that described the second element exceeds described the second vertical bar extends on described piston, and described the second element is provided with floating region near the inboard of described the first vertical bar.
Above-mentioned two stroke engine with oil ring, wherein, described elastic member is a spring shackle, described spring shackle described the first element of extruding and described the second element.
Above-mentioned two stroke engine with oil ring, wherein, described piston ring when described piston B.D.C position and the interval between described black box can be set to less than or equal to 5 millimeters.
Owing to having adopted above-mentioned technology, the good effect that technique scheme compared with prior art has is:
Use such black box, on the one hand can sealing gas, can control lubricant oil again on the other hand; Relatively simple for structure, can avoid complicated greasing, prevented that consumption of lubricating oil is too high.
Description of drawings
Fig. 1 is first embodiment's schematic diagram of the seal component architecture of a kind of two stroke engine with oil ring of the present invention;
Fig. 2 is second embodiment's schematic diagram of the seal component architecture of a kind of two stroke engine with oil ring of the present invention;
Fig. 3 be a kind of two stroke engine with oil ring of the present invention black box first arrange schematic diagram;
Fig. 4 is that second of the two kinds of black boies that are provided with of a kind of two stroke engine with oil ring of the present invention are arranged schematic diagram;
Fig. 5 is the layout schematic diagram of black box of the double piston engine of a kind of two stroke engine with oil ring of the present invention;
Fig. 6 be a kind of two stroke engine with oil ring of the present invention black box the 3rd arrange schematic diagram;
Fig. 7 is first element of black box of a kind of two stroke engine with oil ring of the present invention and the connection diagram of the second element.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as limiting to the invention.
First embodiment's schematic diagram of the black box of a kind of two stroke engine with oil ring of the present invention as shown in Figure 1, the otch of the otch opposite working 2 of the piston 1 of two stroke IC engine.Black box 3 is arranged on working surface 2.Black box 3 comprises the first element 4, the second element 5 and three element 6.The first element 4 is as gas seal.The second element 5 is realized oil-tightness, and the second element 5 has floating region 7.Three element 6 is embedded in the second element 5, and is connected to each other.The second element 5 surrounds three element 6 fully.
Further, the second element 5 as indicated by dashed line, at least part of opening fully makes three element 6 well be inserted in the second element 5.Three element 6 can arrange a spring element, and it is pressed into and is fixed in otch in three element 6.The shape of this otch has the locking effect of anticreep.In the first element 4 that the second element 5 is embedded in.The first element 4 has a space, and its shape and the second element 5 are complementary.The first element 4 can be U-shaped or L shaped.
Further, three element 6 is applied on the second element 5 for generation of active force, guarantees that the second element 5 is fixed in the first element 4 on the one hand, on the other hand, is extruded on piston 1 by the second element 5, makes three element 6 also can produce active force.The layout of the second element 5 makes it in the first element 4, relative movement occur.In addition, the first element 4 is arranged in groove 27, makes it also can produce relative movement with working surface 2.
Further, by the space 8 that forms between the groove 27 of the first element 4 and outer surface, the gas pressure of firing chamber 13 can act on the first element 4.Can there be the pressure loss on the first element 4.The second element 5 produces less than the pressure in firing chamber 13.By being connected to engine oil chamber, particularly crankcase 16, can produce less crushing.Effectively the force action of gas pressure is to the first element 4, and can be delivered on piston 1 by the cooperation of the plus or minus between corresponding first element 4 and the second element 5.Coating 9 is arranged on piston 1, the durability that this can reduce wearing and tearing and increase black box 3, coating 9 can be the slicker solder coating, graphite coating, phosphate coating, nickel coating, plastic layer, iron-based coating, and ceramic coating, and can provide difform coating along piston skirt.
Further, black box 3 may be according to different situations concrete surface configuration change and the contacting of coating 9.Therefore, such shape can provide a zone, falls by the friction break-in in the running-in test process.Namely at the two stroke IC engine that starts for the first time, along working surface 2 or along the outer surface of piston 1 separately.This coating can be used for working surface with wear prevention.In addition, such break-in also can accurately be satisfied the suitable tolerance of each independent internal-combustion engine.
Further, first element 4 has the first vertical bar 10 and the second vertical bar 11.The first long vertical bar 10 is arranged in 13 directions towards the firing chamber, and the second shorter vertical bar 11 is positioned at the direction towards engine oil chamber.By this way, the first vertical bar 10 produces tightness with described the second element 5.In floating region 7, same configuration is used on the direction of firing chamber 13.By this way, the first vertical bar 10 that passes through on the one hand and the machine oil between coating 9 can be collected; On the other hand, in fact floating region 7 leads to the second element 5 and rotates, and therefore three element 6 compresses coating 9 more closely, thereby has improved tightness.
Second embodiment's schematic diagram of the black box of a kind of two stroke engine with oil ring of the present invention has as shown in Figure 2 shown the black box 3 of another kind of structure.Here, the second element 5 is embedded in the first element 4 fully, with the first element 4, two same long vertical bars is arranged.The first element 4 and the second element 5 that shape is complementary cooperatively interact to be fixed together.As the second element 5, the first element 4 has partly plastic deformation, is with flexible.Have at least one to be resilient in these two constituent elements, at least a portion is regional need to be fully flexible.This need to guarantee by selecting suitable material.In addition, the first element 4 also can be used to carry out heat transmission from piston-cylinder.This needs the first element 4 to select the good material of thermal conductivity.Can embed heat-resistant conductive material.This material can be wire or similar material.Connect the first element 4 and the second element 5, the three element 6 are rotated motion by Spielpassung, similar rotatablely moving quoted by all elements.For this reason, the outer surface of the first element 4 is at least part of is circular more to be conducive to motion.
First of the black box of a kind of two stroke engine with oil ring of the present invention arrange schematic diagram as shown in Figure 3, air supplies to firing chamber 13 by suction port 12.Gas of combustion is by relief opening 14 13 interior discharges from the firing chamber.Black box 3 is arranged in suction port 12 in this structure and the below of relief opening 14.Piston 1 can have one or more piston ring (not shown), this layout make these lower dead center when zone can touch black box 3 above working surface 2.According to shown in structure, a kind of two stroke IC engine with horizontal scavenging system might be provided, have the crankcase 16 that seals by the black box 3 that is arranged in working surface 2.
Second of the two kinds of black boies that are provided with of a kind of two stroke engine with oil ring of the present invention are arranged schematic diagram as shown in Figure 4., arranged an overflow ducts 15 here, can flow into engine oil chamber (being shown as an otch) or enter crankcase 16 from this passage waste gas.At piston 1, a piston ring is housed, and working surface 2 have two black boies 3, is respectively the first black box 31 and the second black box 32.The first black box 31 disposes two ports, and the second black box 32 is arranged between suction port 12 and relief opening 14.In this mode, it can guarantee to provide an extra seal action, thereby prevents from scurrying into relief opening 14 from the gas that the suction port 12 of two stroke IC engine enters.Perhaps also can only arrange in the first black box 31 and the second black box 32.In addition, piston 1 is by wrist pin 23 sealings of connecting rod 22.
The layout schematic diagram of the black box of the double piston engine of a kind of two stroke engine with oil ring of the present invention as shown in Figure 5, firing chamber 13 is defined as between first piston 24 and the second piston 25.Therefore, as shown in the figure, when opening, suction port 12 and air outlet 14 carry out blow down.Piston sleeve 17 is arranged on working surface 2, which is provided with black box 3, be arranged in corresponding groove 18 the insides.Piston sleeve 17 tightens to cylinder, therefore can adjust its position.For example, black box 3 also can change the position with respect to top dead center or lower dead center.Two piston rings are housed on first piston 24, are respectively first piston ring 33 and the second piston ring 34.By the layout of these or piston ring, can form with respect to another sealing of cylinder bearing face 2.
The 3rd of the black box of a kind of two stroke engine with oil ring of the present invention the arrange schematic diagram as shown in Figure 6, black box 3 be arranged in relief opening 14 and suction port 12 below.Piston ring is arranged in the below of black box 3, and these piston rings are disposed in enough places far away, piston skirt below, otherwise touch black box 3.
The first element of the black box of a kind of two stroke engine with oil ring of the present invention and the connection diagram of the second element as shown in Figure 7, working surface 2 is formed by first portion 20 and second portion 21.The layout of first portion 20 and second portion 21 makes them relative to each other to move.Black box 3 can be arranged between these two parts.Be divided into first portion 20 and second portion 21 by working surface 2, black box 3 can reach a complete totally enclosed effect.Particularly, the continuous gap that can eliminate black box is arranged.First portion 20 and second portion 21 use screw threads connect together.This makes, and on the one hand, between first portion 20 and second portion 21, enough retention forces is arranged.On the other hand, this tightness requirement that is threaded and satisfies regulation.
The above only is preferred embodiment of the present invention, not thereby limits claim of the present invention, so the equivalent structure that all utilizations specification of the present invention and diagramatic content are made changes, all is included in protection scope of the present invention.
Claims (8)
1. two stroke engine with oil ring, at least be provided with a suction port or relief opening, it is characterized in that, comprise black box, described black box is located at piston and around in the gap between the cylinder surface around it, described piston slides with respect to described black box, described black box is arranged in cylinder bearing surface to separate engine oil chamber and the gas control system with suction port or relief opening, described black box comprises is located at the second element that guarantees bubble-tight the first element under described working surface and be partially submerged into described the first element assurance oil-tightness.
2. as claimed in claim 1 with the two stroke engine of oil ring, it is characterized in that, described the first element can be the U-shaped structure, described the second element is positioned in described U-shaped structure by elastic member, described U-shaped structure comprises the first vertical bar and the second vertical bar, described the first vertical bar is longer than described the second vertical bar, and described the first vertical bar is arranged as towards the firing chamber direction, and described the second vertical bar is arranged as towards engine oil chamber.
3. as claimed in claim 1 with the two stroke engine of oil ring, it is characterized in that, described black box can be located on the cylindricality periphery of described piston, and the sliding space of described black box can be set to less than 10 millimeters from suction port or relief opening.
4. as claimed in claim 1 with the two stroke engine of oil ring, it is characterized in that, described piston has two piston rings, described black box and at least one described piston ring be arranged in engine oil chamber and have suction port or the gas control system of relief opening between, the range of movement of described piston ring is no more than described black box.
5. as claimed in claim 1 with the two stroke engine of oil ring, it is characterized in that, described piston and described black box contacted zone and the neighboring area applying coating that surpasses described black box are with the wear prevention of reducing friction.
6. as claimed in claim 2 with the two stroke engine of oil ring, it is characterized in that, the part that described the second element exceeds described the second vertical bar extends on described piston, and described the second element is provided with floating region near the inboard of described the first vertical bar.
7. as claimed in claim 2 with the two stroke engine of oil ring, it is characterized in that, described elastic member is a spring shackle, described spring shackle described the first element of extruding and described the second element.
8. as claimed in claim 4 with the two stroke engine of oil ring, it is characterized in that, described piston ring when described piston B.D.C position and the interval between described black box can be set to less than or equal to 5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101051824A CN103174512A (en) | 2013-03-28 | 2013-03-28 | Two-stroke engine with oil ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101051824A CN103174512A (en) | 2013-03-28 | 2013-03-28 | Two-stroke engine with oil ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103174512A true CN103174512A (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101051824A Pending CN103174512A (en) | 2013-03-28 | 2013-03-28 | Two-stroke engine with oil ring |
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| Country | Link |
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| CN (1) | CN103174512A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527343A (en) * | 2013-09-22 | 2014-01-22 | 安徽中鼎动力有限公司 | Arranging method of piston oil rings of engine |
| WO2023173188A1 (en) | 2022-03-14 | 2023-09-21 | Mote Soares Marco Antonio | Two-stroke engine, lubrication device and cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1379041A (en) * | 1921-05-24 | Oswald s | ||
| CN1076004A (en) * | 1992-03-04 | 1993-09-08 | 马真理 | Two-stroke engine |
| DE19806175A1 (en) * | 1997-02-01 | 1998-08-13 | Dancho Zochev Dipl Ing Donkov | Internal combustion engine |
| DE19904002A1 (en) * | 1999-02-02 | 2000-08-17 | Udo Wagener | Two-stroke internal combustion engine, with closed crankcase and hollow pistons forming air charge precompression chamber |
| CN2462077Y (en) * | 2000-09-28 | 2001-11-28 | 李静 | Wholly separating lubricating system of two-stroke engine |
| US20070125323A1 (en) * | 2005-12-07 | 2007-06-07 | Peter Hofbauer | Two-stroke internal combustion engine with oil ring |
-
2013
- 2013-03-28 CN CN2013101051824A patent/CN103174512A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1379041A (en) * | 1921-05-24 | Oswald s | ||
| CN1076004A (en) * | 1992-03-04 | 1993-09-08 | 马真理 | Two-stroke engine |
| DE19806175A1 (en) * | 1997-02-01 | 1998-08-13 | Dancho Zochev Dipl Ing Donkov | Internal combustion engine |
| DE19904002A1 (en) * | 1999-02-02 | 2000-08-17 | Udo Wagener | Two-stroke internal combustion engine, with closed crankcase and hollow pistons forming air charge precompression chamber |
| CN2462077Y (en) * | 2000-09-28 | 2001-11-28 | 李静 | Wholly separating lubricating system of two-stroke engine |
| US20070125323A1 (en) * | 2005-12-07 | 2007-06-07 | Peter Hofbauer | Two-stroke internal combustion engine with oil ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527343A (en) * | 2013-09-22 | 2014-01-22 | 安徽中鼎动力有限公司 | Arranging method of piston oil rings of engine |
| WO2023173188A1 (en) | 2022-03-14 | 2023-09-21 | Mote Soares Marco Antonio | Two-stroke engine, lubrication device and cylinder |
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Application publication date: 20130626 |