CN85105365A - The petrolic cylinder closing oil-saving device of automobile-used side-located gas-gate - Google Patents
The petrolic cylinder closing oil-saving device of automobile-used side-located gas-gate Download PDFInfo
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- CN85105365A CN85105365A CN 85105365 CN85105365A CN85105365A CN 85105365 A CN85105365 A CN 85105365A CN 85105365 CN85105365 CN 85105365 CN 85105365 A CN85105365 A CN 85105365A CN 85105365 A CN85105365 A CN 85105365A
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- cylinder
- valve tappet
- clutch
- steel ball
- gas path
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- 239000000446 fuel Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000000926 separation method Methods 0.000 claims description 17
- 239000000295 fuel oil Substances 0.000 abstract description 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 229930195733 hydrocarbon Natural products 0.000 abstract description 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 29
- 230000005540 biological transmission Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 235000015927 pasta Nutrition 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The petrolic cylinder closing oil-saving device of a kind of automobile-used side-located gas-gate.Under medium and small load condition, this device can be closed partly cylinder, saves fuel oil.This device is made up of valve tappet, fuel level height adjuster of carburetor float chamber and the combination gas path driver of flexible clutch selector, reciprocating clutch.Use device of the present invention can improve the economic performance of dress with the petrolic automobile of side-located gas-gate greatly, significantly reduce carbon monoxide in the discharging, hydrocarbon is to the pollution of atmosphere.The present invention can undergo technological transformation to existing 600,000 the CA-10B automobiles of China, and annual fuel-economizing reaches more than 1,000,000 tons.
Description
The present invention relates to a kind of cylinder closing oil-saving device of motor petrol motor.
For the motor petrol motor, in transport process, often be tending towards medium and small load condition.Therefore, adopt the partial cylinders that kills engine to attract much attention already to save this method of fuel oil.Realization the kill engine method or the device of partial cylinders, existing abroad a lot of patents get the Green Light.In these patents, a class is adopt to cut off Carburetor to the method for engine intake manifold for fuel oil, perhaps stops method for inflammable mixture and realizes the partial cylinders that kills engine.U.S. Pat-4,192 for example, 278, US-4,204,514 and US-4,187,824 etc.Another kind of patent is to adopt a kind of telescopic valve tappet mechanism, replaces the fixing valve tappet of length in the former motor, realizes the partial cylinders that kills engine.Up till now, existing abroad a lot of patents have been done a large amount of improvements to scalable valve tappet design.The employing that for example abroad has is located at cylinder head top with engine cam, between valve rocker and camshaft by having adorned a telescopic mechanism, the valve tappet that has replaced the used fixed length of former motor is realized the cylinder closing oil-saving method of often closing or often opening of the inlet and outlet valve of engine section cylinder.Also there is the way that the adopts scalable valve rocker bearing inlet and outlet valve of realizing killing engine to reach fuel-efficient.Cylinder technology is closed in comprehensive above-mentioned vehicular engine part, all is the cylinder closing oil-saving devices that design at the Overhead valve petrol engine.Such gasoline-saving device can not be directly used in the petrolic cylinder technology that closes of side-located gas-gate fully owing to be subjected to the restriction of side-located gas-gate petrol engine distribution device geometric space.Angle from fuel-saving technique also exists certain problem simultaneously, for example the sort of air intake valve with petrolic a part of cylinder is closed and is made drain tap be in the local cylinder closing oil-saving device of normally open, though drain tap is often opened the resistance that can reduce compression stroke, and the working cylinder waste gas after burning is sucked cylinder in suction stroke, form twice ventilation in work cycle of petrol engine, cause gas exchange loss to increase, reduced oil-saving effect.These devices are after closing cylinder in addition, and carburetor bowl fuel head is not made matching treatment, and carburetor throat degree of vacuum is reduced, and influence bubble level, thereby are difficult to reduce significantly oil consumption.
The objective of the invention is specially at the side-located gas-gate petrol engine, design a kind of valve tappet and flexible clutch selector of reciprocating clutch, realization is closed fully to the intake ﹠ exhaust valves door of the partial cylinders of motor, the close fit of fuel level height adjuster of carburetor float chamber is in addition reduced the motor petrol engine consumption significantly and is reduced the pollution for atmosphere of carbon monoxide in the discharging, hydrocarbon.
The petrolic cylinder closing oil-saving device of automobile-used side-located gas-gate is formed by the valve tappet of reciprocating clutch, flexible clutch selector, combination gas path driver with the fuel level height adjuster of carburetor float chamber that tail-off partial cylinders working state is complementary.The valve tappet of reciprocating clutch is made up of hollow valve tappet, separation mandrel, three above steel balls, separation sleeve and pressure springs.The through hole of dividing equally circumference that cooperates with steel ball more than three is arranged on a certain section on its hollow valve tappet, its hole face is engaged by cylndrical surface and spherical calotte and forms, it separates on the mandrel also the vertical garden arc guide groove of dividing equally garden week that cooperates with steel ball more than three, at the guide groove position of separating on a certain section of mandrel the sphere pit that cooperates with steel ball is arranged.Steel ball more than three is contained in the through hole on the hollow valve tappet wall respectively, and steel ball all spills with respect to the inside and outside wall of hollow valve tappet.Steel ball spills part on hollow valve tappet inwall can block the pressure spring that is placed on hollow tappet bottom, otherwise, pressure spring has again keeps the fixation that steel ball is positioned at above-mentioned through hole, simultaneously steel ball spills part and also will cooperate with the guide groove of the separation mandrel that be contained in hollow valve tappet inside on the inwall of hollow valve tappet, make separate mandrel can be steadily in the hollow valve tappet, freely move up and down.Flexible clutch selector is made up of fixed spring stent, springs, torque spring, U-shaped shift fork, transmission shaft, transmission tooth sector.When if the U-shaped shift fork of flexible clutch selector applies downward active force to being enclosed within separation sleeve on the hollow valve tappet, the separation mandrel that is contained in the hollow tappet can be subjected to the downward active force of cylinder valve spring, separate mandrel and do downward motion, and compression is contained in the pressure spring of hollow tappet bottom, in the process that this moves downward, be applied in downward active force separation sleeve can with half leak the steel ball more than three on hollow valve tappet outer wall be pressed into separate on the mandrel with the same number of sphere pit of steel ball in, like this, separate mandrel and rely on steel ball to present mutual locking state, make the valve tappet of reciprocating clutch become the fixing solid lifter of length with the hollow valve tappet.Along with engine cam rotates, the valve tappet of reciprocating clutch moves up and down, and finishes the normal switching of cylinder valve, promptly opens the cylinder state.If the separation sleeve that is enclosed within on the hollow tappet is subjected to the active force that the U-shaped shift fork makes progress in the flexible clutch selector, separation sleeve will be along the hollow tappet segment distance that moves up, make separate mandrel is in locking state with the hollow valve tappet steel ball the pressure spring of hollow tappet bottom and cylinder valve spring to the acting in conjunction that separates mandrel under, steel ball is pushed back hollow tappet outer wall again be the position that partly spills, hollow like this tappet presents releasing orientation with separating mandrel, has realized the scalable function of the valve tappet of reciprocating clutch.Along with engine cam rotates, during this telescopic valve tappet moves upward,, make valve be in closed condition owing to be installed in the strength of the strength of the pressure spring bottom the hollow tappet less than the cylinder valve spring, promptly close the cylinder state.Like this, as long as drive the pairing flexible clutch selector of one or several cylinder intake and exhaust valve selectively, just can make the inlet and outlet valve of these cylinders be in buttoned-up status.For the float level that makes Carburetor can adapt to the requirement of closed portion cylinder engine working state, the present invention is provided with fuel level height adjuster of carburetor float chamber.It is made up of minitype pneumatic clutch release slave cylinder, lever, minitype pneumatic clutch release slave cylinder support, lever dolly and adjusting screw.Its effect is to operate under the working state of closing two or more cylinders when motor, combination gas path driver will send pressurized air to the minitype pneumatic clutch release slave cylinder, the piston that promotes the minitype pneumatic clutch release slave cylinder moves upward, lift on the free end of this piston with lever, thereby will be positioned on the adjusting screw on the lever and draw certain altitude, the corresponding decline certain altitude of the float of Carburetor, this closes the fuel head of cylinder state thereby make the float chamber pasta drop to adaptation.When motor is in when cutting out a cylinder or not closing the cylinder state, combination gas path driver no longer provides pressurized air to the minitype pneumatic clutch release slave cylinder, in Carburetor, be enclosed within the spring action on the adjusting screw, push away under the adjusting screw, and drive lever decline, again the piston in the minitype pneumatic clutch release slave cylinder is pushed back original position simultaneously.Along with pushing of adjusting screw, carburetor bowl fuel head goes back up to again and adapts to the desired fuel head of engine behavior this moment.As driving mechanism combination gas path driver of the present invention, formed by one group of two-way pneumatic clutch release slave cylinder, one group of rocking arm, one group of driving gear, one group of transmission shaft, the logical element of gas circuit of one group of Electromagnetic Drive, gas path plate, snorkel.Its effect is the logical element of gas circuit of Electromagnetic Drive, pressurized air is sent into selected two-way pneumatic clutch release slave cylinder by gas path plate and snorkel, and the piston of two-way pneumatic clutch release slave cylinder upwards boosted, driving rocking arm and driving gear turns an angle to counterclockwise direction together, this driving gear will turn an angle to clockwise direction with the gear in the flexible clutch selector of its interlock, by the transmission shaft in the flexible clutch selector, torque spring, to lift on the U-shaped shift fork in the flexible clutch selector, the separation sleeve that the U-shaped shift fork will drive in the valve tappet of reciprocating clutch is upwards slided, and reaches the purpose of closing cylinder.Otherwise, the logical element of gas circuit of Electromagnetic Drive is sent into selected two-way pneumatic clutch release slave cylinder with pressurized air by gas path plate and other tracheae, piston in the two-way pneumatic clutch release slave cylinder is pushed back to the origin-location, turn an angle to clockwise direction together thereby drive rocking arm and driving gear, this driving gear will turn an angle to counterclockwise direction with the gear in the elastic clutch of its interlock again.Same by transmission shaft, torque spring in the flexible clutch selector U-shaped shift fork in the flexible clutch selector is pressed down, the U-shaped shift fork will drive separation sleeve in the valve tappet of reciprocating clutch to lower slider, reach out the purpose of cylinder.
The present invention has following characteristics: cylinder closing oil-saving device of the present invention is to be specifically designed to the petrolic cylinder closing oil-saving device of automobile-used side-located gas-gate.At the petrolic distribution device geometric space of side-located gas-gate situation, this gasoline-saving device of designing is simple and reasonable, and installation and maintenance are convenient, and are reliable, are easy to large-scale popularization.Steel ball in the valve tappet of reciprocating clutch is that employing face contacts with separating mandrel with the hollow valve tappet, makes to contact part stress with steel ball and reduce, and has prolonged the working life of the main mechanical parts of gasoline-saving device greatly.Cylinder closing oil-saving device of the present invention, owing to adopted the fuel level height adjuster of carburetor float chamber of coupling closed portion cylinder engine working state, compare with the gasoline-saving device of independent employing closed portion cylinder, further improved the oil-saving effect of cylinder closing oil-saving device, made the fuel saving ratio of this gasoline-saving device can reach 12～30%.One is used the test data of this cylinder closing oil-saving device as shown in the table:
The combination gas path driver of cylinder closing oil-saving device of the present invention is reasonable in design, makes this cylinder closing oil-saving device be suitable for automatic control, also greatly reduces the manufacture cost of automatic controller simultaneously.The present invention can select to close one or more cylinders, and can carry out step by step, and so not only power ramp up is little, and it is steady to close the cylinder switch transition, and owing to make the engine output excursion big, this gasoline-saving device has practicability widely.
1 to 5 represented embodiment describes the present invention below in conjunction with accompanying drawing.
Accompanying drawing 1 is in the valve tappet sectional view of the reciprocating clutch of locking state.1-engine air valve rod wherein, screw is adjusted in the 2-valve clearance, the 3-steel ball, the 4-separation sleeve, 5-separates mandrel, 6-hollow valve tappet, 7-pressure spring, 8-tappet support.
Accompanying drawing 2 is in the valve tappet sectional view of the reciprocating clutch of releasing orientation.Its each Part No. is identical with accompanying drawing 1.
Accompanying drawing 3, the valve tappet of reciprocating clutch, the ssembly drawing of transmission shaft in flexible clutch selector and the combination gas path driver and transmission tooth sector.Wherein the valve tappet parts of reciprocating clutch are: 1-hollow valve tappet, 2-separates mandrel, 3-steel ball, 4-separation sleeve, 5-pressure spring.The parts that belong to flexible clutch selector are: 6-U type shift fork, 7-springs, 8-transmission shaft, 9-torque spring, 11-transmission tooth sector.The parts that belong to combination gas path driver are: 10-transmission tooth sector, 12-axle.
Accompanying drawing 4, the combination gas path driver ssembly drawing.Piston in the 1-two-way pneumatic clutch release slave cylinder wherein, 2-two-way pneumatic clutch release slave cylinder, 3-rocking arm, 4-transmission tooth sector, 5-axle, 10, the 6-gas path plate, 7, the logical element of gas circuit of 12-Electromagnetic Drive, 8,9, the 11-snorkel.
Accompanying drawing 5, the fuel level height adjuster of carburetor float chamber ssembly drawing.Piston in the 1-minitype pneumatic clutch release slave cylinder wherein, 2-minitype pneumatic clutch release slave cylinder, 3-lever, 4-lever fixed support, 5-adjusting screw, 6-spring, 7-float support, 8-minitype pneumatic clutch release slave cylinder fixed support, 9-snorkel.
Cylinder closing oil-saving device of the present invention, closing partly, cylinder with the course of action of opening buttoned-up part cylinder is: if realize closing two cylinders, it at first is the gas path plate 6 in the combination gas path driver (accompanying drawing 4), pressurized air in the snorkel 8 is sent into snorkel 11, and continue to be fed into two-way pneumatic clutch release slave cylinder 1.Because compressed-air actuated effect upwards boosts piston 2, drive rocking arm 3 together with axle 5 and transmission tooth sector 4 by piston 2, inhour is rotated several angle.Transmission tooth sector 4 in the accompanying drawing 4 is same parts with transmission tooth sector 10 in the accompanying drawing 3.Therefore see to be exactly that transmission tooth sector 10 is when rotating from accompanying drawing 3, to drive transmission tooth sector 11 and transmission shaft 8 turns an angle together along clockwise direction, the rotation of transmission shaft 8, by torque spring 9, springs 7 upwards lifts U-shaped shift fork 6, in the process that the U-shaped shift fork upwards lifts, will drive separation sleeve 4 segment distance that moves upward simultaneously.Then from accompanying drawing 1, steel ball 3 is under the acting in conjunction of pressure spring 7, separation mandrel 5, be depressed into to be and partly spill position (as shown in Figure 2) at hollow valve tappet outer wall, hereto, be in releasing orientation owing to separate mandrel 5 and hollow valve tappet 6, so the valve tappet of reciprocating clutch has had scalable function.When the valve tappet of reciprocating clutch moved up and down with the camshaft rotation, the rigidity of the pressure spring 7 in hollow valve tappet 6 made the cylinder valve be in closed condition less than the rigidity of cylinder valve spring like this.In actual device, the rotation of the transmission shaft 8 in the accompanying drawing 3 is four U-shaped shift forks that drive flexible clutch selector simultaneously, these four U-shaped shift forks corresponding again the valve tappet of four reciprocating clutch of inlet and outlet door of two cylinders.So should being two cylinders, above-mentioned cylinder closed condition is in closed condition, the requirement of two cylinders of so just having realized killing engine.On the contrary, if make above-mentioned two cylinders of closing be in out the cylinder working state again, the gas path plate 10 in the combination gas path driver (accompanying drawing 4) then, pressurized air in the snorkel 8 is sent into snorkel 9, and continuing to be fed into two-way working cylinder 1, gas path plate 6 stops to provide pressurized air to snorkel 11 simultaneously.Send into the pressurized air of two-way pneumatic clutch release slave cylinder 1 by snorkel 9, make cylinder piston 2 push back original position downwards, the original pressurized air that is in the cylinder piston bottom will be along snorkel 11, and the bleeder port in the logical element of gas circuit 12 of the Electromagnetic Drive on gas path plate 6 is discharged.The above-mentioned part that closes in the cylinder course of action, after a series of reversing motion, from accompanying drawing 2, separation sleeve 4 is pressed into as shown in Figure 1 position to steel ball 3 in doing the process that moves downward, and hollow valve tappet 6 is in locking state with separating mandrels 5.The valve tappet of reciprocating clutch just becomes the rigidity valve tappet like this, and rotates with camshaft, moves up and down, and has realized that valve normally opens and closes in opening the cylinder working state, promptly opens the cylinder state.The same with the above-mentioned situation of closing two cylinders, be two buttoned-up cylinders to be opened be out the cylinder state at this moment.This has just finished the present invention and has closed partly cylinder and whole course of action of opening buttoned-up part cylinder.Above-mentioned close two cylinder operation processes in, gas path plate 6 in the accompanying drawing 4, be installed on the gas path plate 6 by an end, the other end is installed in the snorkel on the minitype pneumatic clutch release slave cylinder 19 in the accompanying drawing 5, equally the pressurized air in the snorkel 8 is sent into the minitype pneumatic clutch release slave cylinder in the accompanying drawing 5.Pressurized air upwards boosts piston 2, by lever 3, adjusting screw 5 is upwards lifted certain altitude, and move on the drive carburettor float support, with spring 6 compressions, make the carburetor bowl pasta drop to the desired fuel head of the engine behavior of closing two cylinders.On the contrary, in the process that buttoned-up two cylinders are opened, the gas path plate 6 in the accompanying drawing 4 stops that snorkel 9 provides pressurized air in accompanying drawing 5.Under the effect of compressed spring 6, adjusting screw 5 is pushed, and drive lever 3, piston 2, float support 7 drops to the origin-location together.And the original pressurized air that is in piston 2 bottoms is through snorkel 9, get back to gas path plate 6 discharge of the bleeder port in the logical element of gas circuit 12 of Electromagnetic Drive then in the accompanying drawing 4, so just make the carburetor bowl pasta go back up to the desired fuel head of engine behavior that cylinder is all opened in adaptation.
Claims (6)
1, the petrolic cylinder closing oil-saving device of a kind of automobile-used side-located gas-gate is characterized in that it is by flexible clutch selector, and the valve tappet of reciprocating clutch, fuel level height adjuster of carburetor float chamber and combination gas path driver are formed.
2, device according to claim 1 is characterized in that described flexible clutch selector is made up of fixed support, springs, torque spring and U-shaped shift fork.
3, device according to claim 1 is characterized in that the valve tappet of described reciprocating clutch is made up of hollow valve tappet, separation mandrel, steel ball, separation sleeve and pressure spring.
4, device according to claim 1, it is characterized in that having in the valve tappet of described reciprocating clutch the steel ball more than three, the through hole of dividing equally circumference that cooperates with steel ball more than three is arranged on a certain section on its hollow valve tappet, its hole face is engaged by cylndrical surface and spherical calotte and forms, it separates on the mandrel also the vertical garden arc guide groove of dividing equally circumference that cooperates with steel ball more than three, at the guide groove position of separating on a certain transverse section of mandrel the sphere pit that cooperates with steel ball is arranged.
5, device according to claim 1 is characterized in that described fuel level height adjuster of carburetor float chamber is made up of minitype pneumatic clutch release slave cylinder, minitype pneumatic clutch release slave cylinder support, lever, lever dolly and adjusting screw.
6, device according to claim 1 is characterized in that described combination gas path driver is made up of the logical element of gas circuit of one group of Electromagnetic Drive, one group of two-way pneumatic clutch release slave cylinder and gas path plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85105365A CN85105365B (en) | 1985-07-14 | 1985-07-14 | Fuel conserving device by cutting-out individual cylinders for the side-valve gasolene engine in an automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85105365A CN85105365B (en) | 1985-07-14 | 1985-07-14 | Fuel conserving device by cutting-out individual cylinders for the side-valve gasolene engine in an automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85105365A true CN85105365A (en) | 1985-09-10 |
| CN85105365B CN85105365B (en) | 1985-09-10 |
Family
ID=4794430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85105365A Expired CN85105365B (en) | 1985-07-14 | 1985-07-14 | Fuel conserving device by cutting-out individual cylinders for the side-valve gasolene engine in an automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85105365B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266955A (en) * | 2013-04-19 | 2013-08-28 | 牛刚学 | Method and device for separated operation of cylinders of multi-cylinder internal combustion engine |
| US9719386B2 (en) | 2013-01-31 | 2017-08-01 | Tenneco Automotive Operating Company Inc. | Multi-lobed soot blower |
| CN112230501A (en) * | 2020-10-20 | 2021-01-15 | 广州创营科技有限公司 | 360-degree holographic projection device |
-
1985
- 1985-07-14 CN CN85105365A patent/CN85105365B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9719386B2 (en) | 2013-01-31 | 2017-08-01 | Tenneco Automotive Operating Company Inc. | Multi-lobed soot blower |
| CN103266955A (en) * | 2013-04-19 | 2013-08-28 | 牛刚学 | Method and device for separated operation of cylinders of multi-cylinder internal combustion engine |
| CN103266955B (en) * | 2013-04-19 | 2017-02-22 | 牛刚学 | Method and device for separated operation of cylinders of multi-cylinder internal combustion engine |
| CN112230501A (en) * | 2020-10-20 | 2021-01-15 | 广州创营科技有限公司 | 360-degree holographic projection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85105365B (en) | 1985-09-10 |
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Correction item: Inventor Correct: Zhang En... False: Zhang si... Page: 16 Correction item: Inventor Correct: Zhang En... False: Zhang si... Page: 26 |
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Free format text: CORRECT FROM: (INVENTOR)ZHANG SI TO: ZHANG EN |