CN102383862A - Piston-type expander with liquid operation structure - Google Patents
Piston-type expander with liquid operation structure Download PDFInfo
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- CN102383862A CN102383862A CN2010102664579A CN201010266457A CN102383862A CN 102383862 A CN102383862 A CN 102383862A CN 2010102664579 A CN2010102664579 A CN 2010102664579A CN 201010266457 A CN201010266457 A CN 201010266457A CN 102383862 A CN102383862 A CN 102383862A
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Abstract
The invention relates to a piston-type expander with a liquid operation structure, which comprises the following parts: a cylinder, a cone top piston, an ejector rod, a clearance sleeve, an inverted trapezoidal gas inlet valve body and a plurality of exhaust liquid holes, wherein the upper end of the cylinder is provided with a cylinder cover; the cone top piston is arranged in a cavity body of the cylinder; the ejector rod is arranged at the top end of the cone top piston; the clearance sleeve is arranged at the junction of the cylinder and the cylinder cover; a through hole is arranged along the longitudinal axis of the clearance sleeve; the diameter of the through hole is greater than the outer diameter of the ejector rod; the shape of the lower surface of the clearance sleeve is in fit with the shape of the conical surface of the upper end of the cone top piston; a clearance is formed by the space between the lower surface of the clearance sleeve and the conical surface of the upper end of the cone top piston; the lower end of the inverted trapezoidal gas inlet valve body is arranged in the through hole on the clearance sleeve; a spring is arranged between the gas inlet valve body and the side wall of the cylinder cover; the exhaust liquid holes are arranged at the positions on the side wall of the cylinder, which correspond to bottom dead centers of the cone top piston along the radial direction; and the side wall of the cylinder cover is provided with a gas inlet. Due to the adoption of the piston-type expander with the liquid operation structure, most of liquid in the cylinder can be drained in the one-step exhausting process, the clearance of the cylinder is convenient to regulate, the efficiency loss is reduced, and the hydraulic shock risk is difficult to generate.
Description
Technical field
The present invention relates to piston expansion engine, is a kind of piston expansion engine with the liquid operating structure specifically.
Background technique
Constant entropy expansion can be considered the reverse process of adiabatic compression, so decompressor resembles the compressor that uses conversely very much, both are having the place that much communicates aspect structure and the handling characteristics.
Liquid appears in piston compressor taboo in the course of the work.Because liquid has incompressibility, in case liquid is compressed, will in cylinder, produce " water attack " phenomenon, thereby cause piston connecting bar system to damage.In like manner, piston expansion engine can not allow the generation of " water attack " phenomenon.Therefore in China, present employed piston expansion engine all is not suitable for the occasion that band liquid is operated.
But application at some two phase flow; For example utilize swell refrigeration to come Separation and Recovery alkene, alkane, smart nitrogen and energy in the petrochemical equipment, the operation of band liquid is can hardly be avoided in the cylinder, so; Invent a kind of new structure of piston expansion engine, enable to be necessary with the liquid operation.
The agent structure of traditional gas piston formula decompressor all is vertical, and " piston-cylinder " is vertical to be arranged.That its inlet and outlet are adopted is double-cam valve arrangement (referring to Fig. 1); Inlet and outlet are all accomplished on the top of cylinder 7; Be provided with piston 2 in the cavity of said cylinder 7, the top of cylinder 7 is provided with cylinder head 9, leaves intake duct and air outlet flue between the sidewall of cylinder head 9 and cylinder 7; The cavity at said intake duct and air outlet flue and piston 2 places is communicated with, and is respectively equipped with suction valve 1 and outlet valve 8 with the opening of atmosphere.
When traditional gas piston formula decompressor was worked, connecting rod 3 drove pistons 2 back and forth operation between upper and lower dead point, and connecting rod 3 lower ends are connected with bent axle 5, and bent axle 5 right ends are respectively equipped with intake cam 4 and exhaust cam 6.When piston 2 was positioned at upper dead center, intake cam 4 was opened suction valve 1 (Fig. 1).Piston 2 is descending immediately, and decompressor begins air inlet.When piston 2 went downwards to certain position, intake cam 4 was closed suction valve 1, and decompressor gets into swell refrigeration process (Fig. 2).When piston 2 came downwards to lower dead centre, inflation process finished.Piston 2 anti-bodies upwards carry out compression process (Fig. 3) simultaneously.When piston 2 was up to certain position, exhaust cam 6 was opened outlet valve 8, and decompressor begins exhaust (Fig. 4).When piston 2 was up to upper dead center again, exhaust cam 6 was closed outlet valve 8, and exhaust process finishes (Fig. 5).
If in the swell refrigeration process, gas has condensed fluid to separate out, and then liquid receives gravity effect to be deposited in piston 2 tops.When inflation process finished, these liquid were in low level with piston, and liquid just accumulates in the below of cylinder.After reverse procedure (compression) beginning, piston is operation upwards, and liquid is also up thereupon.After outlet valve 8 was opened, the hydrops of piston upper end was understood some body disturbance and by discrete and carry discharge secretly by gas of being bullied.But, can't quantitatively control, so still can remain in the cylinder by some liquid because this discharge opeing mode has very strong randomness.Along with " expansion-compression " process is carried out again and again, hydrops just maybe be more and more many in the cylinder, until the generation of " water attack " phenomenon.So the structure of traditional gas piston formula decompressor double-cam valve is not suitable for the operation of band liquid.
In addition, piston 2 moves back and forth in cylinder 7, and when walking to upper dead center position, piston tip and cylinder head must be possessed certain clearance, bumps to avoid both.This gap is called as clearance 10 (referring to Fig. 5).Though remaining gas is also participated in compression again and again and is expanded the not external all the time acting of this part gas in the clearance 10.Therefore, the existence of clearance 10 has caused loss in efficiency.In order to reduce the loss in efficiency that clearance causes, all abide by the as far as possible little principle of clearance during compressor design, so the axial height of clearance all is controlled in the 2mm usually.For decompressor, this principle also is suitable for, and the clearance of traditional gas piston formula decompressor is also smaller.But when decompressor was used for the two phase flow operation, too small clearance but was easy to generate the risk of " water attack ".
Summary of the invention
To the defective that exists in the existing technology; The object of the present invention is to provide a kind of piston expansion engine with the liquid operating structure; Can the most liquid in the cylinder be discharged in an exhaust process; Adjustment is convenient in the clearance of cylinder, has reduced loss in efficiency, and is not easy to produce the risk of " water attack ".
For reaching above purpose, the technological scheme that the present invention takes is:
A kind of piston expansion engine with the liquid operating structure is characterized in that, comprises with lower component:
Vertex of a cone piston 13 is located in the cavity of cylinder 7, and its outer surface is set with some piston rings 12;
Overlap 11 longitudinal axis along clearance and be provided with a through hole, the diameter of through hole is greater than the external diameter of push rod 15,
11 lower surface indents are overlapped in clearance, and it is trapezoidal that concave surface is, and with the conical surface shape adaptation of vertex of a cone piston 13 upper ends, the space between the two constitutes clearance 10;
Air inlet valve body 14 is trapezoidal, is positioned at cylinder head 9, and air inlet valve body 14 lower ends place the through hole on the clearance cover 11, is provided with spring 17 between air inlet valve body 14 and cylinder head 9 sidewalls;
On the cylinder corresponding 7 sidewalls with the lower dead centre of vertex of a cone piston 13, radially be provided with plurality of rows gas-liquid hole 16,
On the sidewall of cylinder head 9, be provided with suction port.
On the basis of technique scheme, the lower edge in exhaust liquid hole 16 and height such as piston lower dead centre grade.
On the basis of technique scheme, the perforate mode in exhaust liquid hole 16 is the hoop slotted hole.
On the basis of technique scheme, cylinder 7 diameter 120mm, vertex of a cone piston 13 stroke 100mm;
Overlap the diameter 45mm of the through hole that 11 longitudinal axis are provided with along clearance, push rod 15 diameter 20mm, push rod 15 are threaded with vertex of a cone piston 13 and realize that ejector rob axis is to height adjustment range 20mm;
Exhaust liquid hole 16 hole axial height 8mm, perforate hoop total length is 158mm.
On the basis of technique scheme, outside cylinder 7 and cylinder head 9, be provided with lagging 18.
On the basis of technique scheme, cylinder 7 lower ends are connected with stuffing box 19, and stuffing box 19 lower ends are connected with crankcase 22,
Be provided with bent axle 5 in the crankcase 22,
One end of bent axle 5 passes crankcase 22 backs and is connected with belt pulley 23,
Connecting rod 3 lower ends are connected with bent axle 5, and the upper end is connected with piston rod 24 lower ends through cross jointing 21, and piston rod 24 upper ends are connected with vertex of a cone piston 13,
Be filled with frizing and stuffing box packing 20 in the gap between piston rod 24 and stuffing box 19 inlets.
The piston expansion engine of band liquid operating structure of the present invention can be discharged the most liquid in the cylinder in an exhaust process, adjustment is convenient in the clearance of cylinder, has reduced loss in efficiency, and is not easy to produce the risk of " water attack ".
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 is air inlet (exhaust finishes) schematic representation of traditional gas piston formula decompressor structure;
Fig. 2 is traditional gas piston formula decompressor expansion of structure (air inlet finishes) schematic representation;
Fig. 3 is compression (expansion finishes) schematic representation of traditional gas piston formula decompressor structure;
Fig. 4 is exhaust (compression finishes) schematic representation of traditional gas piston formula decompressor structure;
Fig. 5 is the exhaust of the traditional gas piston formula decompressor structure schematic representation that finishes;
Fig. 6 is the piston expansion engine inlet and outlet valve arrangement exhaust process figure of band liquid operating structure;
Fig. 7 is the piston expansion engine inlet and outlet valve arrangement compression process figure of band liquid operating structure;
Fig. 8 is the piston expansion engine inlet and outlet valve arrangement intake process figure of band liquid operating structure.
Fig. 9 is the piston expansion engine structural representation (upper dead center, bent axle changes 0 °) of vertical twin-tub single valve band liquid operating structure
Diagram 10 is the A-A view of Fig. 9.
Figure 11 is the piston expansion engine structural representation (bent axle changes 90 °) of vertical twin-tub single valve band liquid operating structure
Figure 12 is the B-B view of Figure 11.
Figure 13 is the piston expansion engine structural representation (bent axle changes 135 °) of vertical twin-tub single valve band liquid operating structure
Figure 14 is the C-C view of Figure 13.
Figure 15 is the piston expansion engine structural representation (lower dead centre, bent axle changes 180 °) of vertical twin-tub single valve band liquid operating structure
Figure 16 is the D-D view of Figure 15.
Reference character:
1, suction valve; 2, piston; 3, connecting rod; 4, intake cam; 5, bent axle; 6, exhaust cam; 7, cylinder; 8, outlet valve; 9, cylinder head; 10, clearance;
11, clearance cover; 12, piston ring; 13, vertex of a cone piston; 14, air inlet valve body; 15, push rod; 16, exhaust liquid hole; 17, spring; 18, lagging; 19, stuffing box; 20, frizing and stuffing box packing; 21, cross jointing; 22, crankcase; 23, belt pulley; 24, piston rod.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
The piston expansion engine of band liquid operating structure of the present invention has at first changed the mode of structure that conventional piston formula decompressor adopts cam valve, exhaust from bottom to top (liquid).Make exhaust become smooth and easy, do not stay the dead angle, so that can the most liquid in the cylinder be discharged in an exhaust process.
Secondly, make the clearance of cylinder be convenient to adjustment, and be not easy to produce the risk of " water attack ".For reducing to produce " water attack " thus risk, the present invention will keep bigger clearance.But because the difference of gas component, expansion ratio and other condition in the various separating technologies all can make the band liquid measure in the cylinder different, and the raffinate amount that still might be stored in after the exhaust in the cylinder is also different thereupon.Therefore want to be convenient to adjustment with the clearance of the piston expansion engine of liquid operating structure, to adapt to different needs.
The present invention generally is controlled at clearance and accounts for 10%～30% of cylinder internal volume, and this machine requires with relief opening pressure reduction is arranged outward in the cylinder, utilizes pressure reduction to discharge gas in the jar and liquid, and pressure reduction is wanted >=0.1Mpa.Adopt this structure can make the working medium liquid content unrestricted, even all be that liquid is also out of question.Can reach 70%～90% through the discharge capacity of adjusting each each stroke of duty parameter in the real work.
Raffinate amount in the accurate Calculation cylinder is difficult theoretically, so reasonably clearance must be definite through testing.Obviously, the method for adjusting clearance through the physical dimension that changes cylinder head 9 is cumbersome.Therefore, need set up a kind of new structure, make the adjustment of clearance not only convenient but also help the on-the-spot operation of device.
The piston expansion engine of band liquid operating structure of the present invention; Its structure and working procedure comprise shown in Fig. 6～16: connecting rod 3, bent axle 5, cylinder 7, cylinder head 9, clearance cover 11, piston ring 12, vertex of a cone piston 13, air inlet valve body 14, push rod 15, exhaust liquid hole 16, spring 17, lagging 18, stuffing box 19, frizing and stuffing box packing 20, cross jointing 21, crankcase 22, belt pulley 23, piston rod 24.
The piston expansion engine of band liquid operating structure of the present invention, as shown in Figure 6, comprise with lower component:
Vertex of a cone piston 13 is located in the cavity of cylinder 7, and its outer surface is set with at least one piston ring 12, also can be set with some piston rings 12 at vertex of a cone piston 13 outer surfaces; Vertex of a cone piston 13 can move up and down in the cavity of cylinder 7, and piston ring 12 is with the clearance seal between vertex of a cone piston 13 and cylinder 7 wall bodies;
Push rod 15 is located at the top of vertex of a cone piston 13, is threaded with vertex of a cone piston 13 (referring to Fig. 8);
Clearance overlaps 11, is located at the joint of cylinder 7 and cylinder head 9, and upper half part is positioned at cylinder head 9, and lower half portion is positioned at cylinder 7 cavitys,
The conical surface shape adaptation of 11 lower surfaces and vertex of a cone piston 13 upper ends is overlapped in clearance, and the space between the two constitutes clearance 10 (referring to Fig. 7); For example: 11 lower surface indents are overlapped in clearance, and concave surface is trapezoidal (in particular, being that the concave surface of lower surface was trapezoidal after 11 longitudinal profiles were overlapped in clearance), with the conical surface shape adaptation of vertex of a cone piston 13 upper ends,
Air inlet valve body 14, longitudinal cross-section are trapezoidal, are positioned at cylinder head 9, and air inlet valve body 14 lower ends place the through hole on the clearance cover 11, are provided with spring 17 between air inlet valve body 14 and cylinder head 9 sidewalls; The shape of air inlet valve body 14 also can be the Any shape that is suitable for actual use condition,
On the cylinder corresponding 7 sidewalls with the lower dead centre of vertex of a cone piston 13, radially be provided with plurality of rows gas-liquid hole 16,
On the sidewall of cylinder head 9, be provided with suction port.
The agent structure of the piston expansion engine of band liquid operating structure is vertical, and exhaust liquid hole 16 is arranged on the below of cylinder, i.e. the lower dead centre place (Fig. 6) of piston.Make the direction of exhaust (liquid) consistent with the direction of gas expansion and liquid sedimentation.Thereby overcome the weakness that traditional gas piston formula decompressor expands, the structure discharge opeing of upwards exhaust has some setbacks downwards.Exhaust liquid hole 16, vertex of a cone piston 13 and piston ring 12 have constituted guiding valve.
The lower edge in exhaust liquid hole 16 and height such as piston lower dead centre grade, when the piston expansion engine of band liquid operating structure got into exhaust phase, piston slided into 16 regions, exhaust liquid hole, and the gas (liquid) in the cylinder is discharged through exhaust liquid hole 16.When the anti-body of piston upwards broke away from 16 regions, exhaust liquid hole, because the seal action of piston ring 12, the passage of exhaust was closed, and the piston expansion engine exhaust phase of band liquid operating structure finishes.
The end face of vertex of a cone piston 13 is cone table shape, has eliminated the dead angle of exhaust (liquid), helps the discharge of gas-liquid, and liquid flow to exhaust liquid hole 16 naturally and from exhaust liquid hole 16, discharges outside the cylinder 7 along the end face that is cone table shape.
Air inlet valve body 14 and clearance cover 11 have constituted the suction valve of " built-in jacking valve " form; When vertex of a cone piston 13 goes upward to " specified position " (referring to Fig. 7); The push rod 15 of piston upper end is with air inlet valve body 14 jack-up, and the piston expansion engine of band liquid operating structure begins air inlet.When vertex of a cone piston 13 goes upward to upper dead center (Fig. 8), it is maximum that the open degree of suction valve reaches.When backward stroke of the piston was downward, air inlet valve body 14 relied on spring 17 to reset.When vertex of a cone piston 13 came downwards to " specified position ", suction valve cut out." specified position " that suction valve opens and closes can be set through the height of adjustable diameter and screw adjusting push rod 15.
Because " built-in jacking valve " just opened gas-entered passageway before the piston arrives upper dead center, so up although piston still continues, gas in the countercylinder or liquid have not constituted and have compressed.Therefore this measure is equivalent to original clearance 10 is enlarged, thereby has avoided the generation of " water attack " phenomenon.And " specified position " that jacking valve is opened is big more with the distance of piston upper dead center, and the nargin of taking precautions against " water attack " is just big more.Therefore can change clearance volume through adjustment push rod height, take precautions against effectively " water attack ".Though also can reach same purpose through changing cam.But from satisfying the needs that multiple condition band liquid expands, obviously the means of " adjustable diameter and screw adjusting push rod height " than change cam more convenient, more help execute-in-place with the piston expansion engine of liquid operating structure.
Fig. 9～16 are a specific embodiment, and it is the piston expansion engine of the vertical twin-tub single valve band liquid operating structure of employing technological scheme according to the invention.Like Fig. 9, shown in 10, outside cylinder 7 and cylinder head 9, be provided with lagging 18, cylinder 7 lower ends are connected with stuffing box 19,
Be provided with bent axle 5 in the crankcase 22,
One end of bent axle 5 passes crankcase 22 backs and is connected with belt pulley 23,
Be filled with frizing and stuffing box packing 20 in the gap between piston rod 24 and stuffing box 19 inlets.
The characteristic of the piston expansion engine of vertical twin-tub single valve band liquid operating structure is shown in this specific embodiment:
Constitute in each parts of " built-in jacking valve " of piston expansion engine of vertical twin-tub single valve band liquid operating structure; The through hole that overlaps 11 longitudinal axis settings along clearance is a valve port; Valve port diameter 45mm; Push rod 15 diameter 20mm, push rod 15 are threaded with vertex of a cone piston 13 and realize that ejector rob axis is to height adjustment range 20mm.
Constitute in each parts of " guiding valve " of piston expansion engine of vertical twin-tub single valve band liquid operating structure, the perforate mode in exhaust liquid hole 16 is the hoop slotted hole, hole axial height 8mm, and perforate hoop total length is 158mm.
The maximum difference of the present invention and traditional vertical twin-tub gas piston formula decompressor mainly contains 4 points:
1, exhaust liquid hole 16 is arranged on the below of cylinder 7, has overcome the weakness that traditional gas piston formula decompressor expands, the structure discharge opeing of upwards exhaust has some setbacks downwards, thereby liquid is discharged smoothly.
2, adopt guiding valve to replace the cam outlet valve of traditional gas piston formula decompressor, on the cylinder wall hoop, open several exhaust liquid holes 16 exactly, height such as the lower edge in hole and piston lower dead centre.When decompressor entering exhaust phase, piston slides into 16 zones, exhaust liquid hole, and the gas (liquid) in the cylinder is discharged through many exhaust liquid hole 16.When the anti-body of piston upwards broke away from 16 zones, exhaust liquid hole, because the seal action of piston ring, the passage of exhaust was closed, and the decompressor exhaust phase finishes, and adopted such principle to make the basic emptying of liquid in the cylinder.
3, cone table shape being made in the upper end of piston becomes vertex of a cone piston 13, and vertex of a cone piston has been eliminated exhaust (liquid) dead angle that traditional gas piston formula decompressor adopts flat head piston to produce, and is more conducive to the discharge of gas-liquid.
4, big clearance is promptly through changing the cam suction valve into " built-in jacking valve ".Because " built-in jacking valve " just opened gas-entered passageway before the piston arrives upper dead center, so up although piston still continues, gas in the countercylinder or liquid have not constituted and have compressed.Therefore this measure " phenomenon be equivalent to original clearance 10 is enlarged, thereby avoided the generation of traditional gas piston formula decompressor " water attack " phenomenon.
Owing to adopted above four measures to make the piston expansion engine of band liquid operating structure of the present invention become the field that a kind of brand-new vertical twin-tub piston expansion engine can be applied in two phase flow fully.As utilizing swell refrigeration to come Separation and Recovery alkene, alkane, smart nitrogen and energy etc. in the petrochemical equipment, this is that traditional gas piston formula decompressor can not be accomplished.
Claims (6)
1. the piston expansion engine with the liquid operating structure is characterized in that, comprises with lower component:
Cylinder (7), its upper end is provided with cylinder head (9);
Vertex of a cone piston (13) is located in the cavity of cylinder (7), and its outer surface is set with at least one (12);
Push rod (15) is located at the top of vertex of a cone piston (13), is threaded with vertex of a cone piston (13);
Clearance cover (11) is located at the joint of cylinder (7) and cylinder head (9),
Be provided with a through hole along clearance cover (11) longitudinal axis, the diameter of through hole is greater than the external diameter of push rod (15),
The conical surface shape adaptation of clearance cover (11) lower surface and vertex of a cone piston (13) upper end, the space between the two constitutes clearance (10);
Air inlet valve body (14) is positioned at cylinder head (9), and air inlet valve body (14) lower end places the through hole on the clearance cover (11), is provided with spring (17) between air inlet valve body (14) and cylinder head (9) sidewall;
On cylinder (7) sidewall corresponding with the lower dead centre of vertex of a cone piston (13), radially be provided with plurality of rows gas-liquid hole (16),
On the sidewall of cylinder head (9), be provided with suction port.
2. the piston expansion engine of band liquid operating structure as claimed in claim 1 is characterized in that: the lower edge in exhaust liquid hole (16) and height such as piston lower dead centre grade.
3. the piston expansion engine of band liquid operating structure as claimed in claim 1 is characterized in that: the perforate mode in exhaust liquid hole (16) is the hoop slotted hole.
4. the piston expansion engine of band liquid operating structure as claimed in claim 1 is characterized in that: cylinder (7) diameter 120mm, vertex of a cone piston (13) stroke 100mm;
The diameter 45mm of the through hole that is provided with along clearance cover (11) longitudinal axis, push rod (15) diameter 20mm, push rod (15) and vertex of a cone piston (13) are threaded the realization ejector rob axis to height adjustment range 20mm;
Exhaust liquid hole (16) hole axial height 8mm, perforate hoop total length is 158mm.
5. like the piston expansion engine of claim 1 or 2 or 3 or 4 described band liquid operating structures, it is characterized in that: outside cylinder (7) and cylinder head (9), be provided with lagging (18).
6. like the piston expansion engine of claim 1 or 2 or 3 or 4 described band liquid operating structures, it is characterized in that: cylinder (7) lower end is connected with stuffing box (19), and stuffing box (19) lower end is connected with crankcase (22),
Be provided with bent axle (5) in the crankcase (22),
One end of bent axle (5) passes crankcase (22) back and is connected with belt pulley (23),
Connecting rod (3) lower end is connected with bent axle (5), and the upper end is connected with piston rod (24) lower end through cross jointing (21), and piston rod (24) upper end is connected with vertex of a cone piston (13),
Be filled with frizing and stuffing box packing (20) in the gap between piston rod 24 and stuffing box 19 inlets.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010266457 CN102383862B (en) | 2010-08-30 | 2010-08-30 | Piston-type expander with liquid operation structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010266457 CN102383862B (en) | 2010-08-30 | 2010-08-30 | Piston-type expander with liquid operation structure |
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| CN102383862A true CN102383862A (en) | 2012-03-21 |
| CN102383862B CN102383862B (en) | 2013-02-06 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US791368A (en) * | 1903-08-31 | 1905-05-30 | M & P Co | Fluid motor or meter. |
| US3910160A (en) * | 1974-11-01 | 1975-10-07 | William J Divine | Uniflow steam engine |
| CN1064916A (en) * | 1991-08-23 | 1992-09-30 | 郝成武 | Gas-filled two-stroke internal combustion engine |
| CN2130928Y (en) * | 1992-03-04 | 1993-04-28 | 马真理 | Two-stroke engine |
| US5806403A (en) * | 1990-01-04 | 1998-09-15 | Johnston; Barry | Multicylinder self-starting uniflow engine |
| CN1673537A (en) * | 2004-03-22 | 2005-09-28 | 梁嘉麟 | 'Non-clearance' efficient design scheme for crankshaft driving piston reciprocating compressor |
| CN101319629A (en) * | 2007-06-07 | 2008-12-10 | 汉吉龙 | Engine with double-exhaustion pipe line structure |
-
2010
- 2010-08-30 CN CN 201010266457 patent/CN102383862B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US791368A (en) * | 1903-08-31 | 1905-05-30 | M & P Co | Fluid motor or meter. |
| US3910160A (en) * | 1974-11-01 | 1975-10-07 | William J Divine | Uniflow steam engine |
| US5806403A (en) * | 1990-01-04 | 1998-09-15 | Johnston; Barry | Multicylinder self-starting uniflow engine |
| CN1064916A (en) * | 1991-08-23 | 1992-09-30 | 郝成武 | Gas-filled two-stroke internal combustion engine |
| CN2130928Y (en) * | 1992-03-04 | 1993-04-28 | 马真理 | Two-stroke engine |
| CN1673537A (en) * | 2004-03-22 | 2005-09-28 | 梁嘉麟 | 'Non-clearance' efficient design scheme for crankshaft driving piston reciprocating compressor |
| CN101319629A (en) * | 2007-06-07 | 2008-12-10 | 汉吉龙 | Engine with double-exhaustion pipe line structure |
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