CN100443706C - Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons - Google Patents

Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons Download PDF

Info

Publication number
CN100443706C
CN100443706C CNB2006101358086A CN200610135808A CN100443706C CN 100443706 C CN100443706 C CN 100443706C CN B2006101358086 A CNB2006101358086 A CN B2006101358086A CN 200610135808 A CN200610135808 A CN 200610135808A CN 100443706 C CN100443706 C CN 100443706C
Authority
CN
China
Prior art keywords
oscillating
piston
cylinder
working cylinder
working
Prior art date
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.)
Expired - Fee Related
Application number
CNB2006101358086A
Other languages
Chinese (zh)
Other versions
CN1959081A (en
Inventor
谈诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CNB2006101358086A priority Critical patent/CN100443706C/en
Publication of CN1959081A publication Critical patent/CN1959081A/en
Application granted granted Critical
Publication of CN100443706C publication Critical patent/CN100443706C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

An internal combustion engine of two or multiple cylinder four-stroke type prepared by series-connecting single or multiple swing pistons can be suitably used as various types of internal combustion engines. The energy -saving is most important feature of prepared engine and small structure in only 0.2-0.1 outline volume of internal combustion engine with similar power capacity is another important feature of prepared engine.

Description

Single or multiple oscillating-piston series connection is two cylinder or multicylinder four-stroke explosive motor
Technical field
Single or multiple oscillating-piston series connection belongs to F01C9/00 according to International Patent Classification (IPC), F02B53/00, F02B53/04 for two cylinder or multicylinder four-stroke explosive motor.
Background technique
The present invention is that the inventor declared on August 16th, 2006, denomination of invention is " an integrated type super-large displacement ultrahigh pressure piston series connection multiple cylinder multiple level swing piston compressor ", number of patent application: 200610115894.4 follow-up invention, the two part main structure has close part, but working principle and technical characteristics are entirely different, and the present invention is to higher level development on the basis of last invention.Invention is that the inventor lasts 36 years (1970 to 2006), development on the basis of seven patents of oneself declaring, and the advantage of these patents of invention collection has formed the perfect invention of a success.
These patents are:
1, two-stroke strokes oscillating piston internal combustion engine.Chinese patent, the patent No.: 85100486.5.Obtain second the show of inventions silver medal in the whole nation, obtain the international and new technology exhibition excellent prize of the first.
2, strokes oscillating piston internal combustion engine---four cylinder engine.Chinese patent, the patent No.: 87107720.5, participate in the international show of inventions in first Beijing, can go up interview and group photo that the inventor is subjected to the party and state leaders.
3, strokes oscillating piston internal combustion engine.U. S. Patent, the patent No.: US4884532 obtains the prize of the 15 Geneva world inventions exhibition copper, obtains the 14 the world inventions exhibition in USA New York silver medal.
4, fully closed seal device for swing piston IC engine.Chinese patent, the patent No.: 94105413.6.
5, swing piston compressor.Chinese patent, the patent No.: ZL96247057.0.
6, swing piston compressor end surface sealing device, application on May 15th, 2006 patent of invention, number of patent application: 200610082248.2.
7, integrated type super-large displacement ultrahigh pressure piston series connection multiple cylinder multiple level swing piston compressor was declared patent of invention, number of patent application on August 16th, 2006: 200610115894.4.
The present invention has different working principles and structure with the two-stroke strokes oscillating piston internal combustion engine on prior art, and the present invention is a four stroke engine, and the former is a two stroke engine.U. S. Patent is similarly two-stroke internal combustion engine.
The present invention and strokes oscillating piston internal combustion engine---four cylinder engine has diverse structural type, and oscillating-piston of the present invention and cylinder body constitute two working cylinders, and oscillating-piston of four cylinder engine and cylinder body constitute four working cylinders.
The present invention is development on the basis of 1974 and secondary in 1996 success pratice in real machine, is another successful type.
Summary of the invention
Single or multiple oscillating-piston series connection is two cylinder or multicylinder four-stroke explosive motor, can adopt single oscillating-piston and cylinder body to constitute two cylinder, also can adopt a plurality of oscillating-pistons and cylinder body to constitute multi-cylinder (the cylinder number is the diploidy number of oscillating-piston number), drive by same bent axle [1], crank [13], connecting rod [2], each crank, connecting rod drive an oscillating-piston [3], constitute two working cylinders.
The present invention can realize the middle low power four stroke engine, also can realize the superpower four stroke engine.The present invention adopts four stroke engine, and Economy can be first of the various motors, meets contemporary requirements of saving energy.Because this kind engine mechanical efficiency is higher than other motors, quartastroke engine work cycle, internal efficiency are again the highest in each motor, thereby effective efficiency can be first of the various motors.
Adopt four oscillating-piston eight cylinder four-stroke motors for large-scale or super-huge motor suggestion, this kind engine structure is simple, and peak output can reach more than 100,000 horsepowers, meets the requirement of large-scale power station, boats and ships, 30 ton oil tankers and luxury passenger steamer.Mid power can be suitable for the requirement of power station, locomotive, medium and small-scale vessel.
Adopt this kind motor, stable working, noise is little, and output torque is even, and starting performance is good, and outer molded capacity can be 1/5th to 1/10th of available engine, and manufacture cost is the closely reduction of several times also.
Four oscillating-pistons, eight cylinder four-stroke motors, as shown in Figure 2, mark four oscillating-pistons with [Q], [R], [S], [T], head and the tail two oscillating-pistons [Q], [T] swing synchronously, middle two oscillating-pistons [R], [S] swing synchronously, when [Q], [T] clockwise swing synchronously, [R], [S] be counter-clockwise swing synchronously, bent axle revolution half way around, swaying direction of piston change.Adopt the inertial force and the inertia couple of above motion mode entire mechanism can accomplish complete equilibrium.
As shown in Figure 2: [Q] oscillating-piston and cylinder body form [A], [B] two working cylinders, [R] oscillating-piston and cylinder body form [C], [D] two working cylinders, [S] oscillating-piston and cylinder body form [E], [F] two working cylinders, and [T] oscillating-piston and cylinder body form [G], [H] two working cylinders.[A] cylinder air inlet when oscillating-piston [Q] clockwise direction is put, the exhaust of [B] cylinder.[C] cylinder exhaust when oscillating-piston [R] is counterclockwise swung, the air inlet of [D] cylinder.When oscillating-piston [S] is counterclockwise swung, [E] cylinder air compression, [F] cylinder combustion gas expansion working, when oscillating-piston [T] clockwise direction is swung, [G] cylinder combustion gas expansion working, [H] cylinder air compression.
Therefore: the compression work at this working stroke [E] cylinder is directly paid by the expansion work of [F] cylinder by oscillating-piston [S], does not need to transmit by connecting rod, bent axle.The compression work of [H] cylinder is directly paid by the expansion work of [G] cylinder by oscillating-piston [T] equally, does not need to transmit by connecting rod, bent axle.Significantly reduce the power loss of intermediary agency like this, improved mechanical efficiency greatly.
Turn over a week at bent axle, during the 3rd stroke, oscillating-piston [Q] clockwise direction swing once more, cylinder [B] air compression, cylinder [A] combustion gas is expanded, and cylinder [B] compression work is directly transmitted by oscillating-piston [Q] by cylinder [A] expansion work.Same oscillating-piston [R] is done swing counterclockwise once more, cylinder [C] air compression, and cylinder [D] combustion gas is expanded, and cylinder [C] compression work is directly directly transmitted by oscillating-piston [R] by cylinder [D] expansion work.So also significantly reduce the power loss of intermediary agency, improved mechanical efficiency greatly.
Oscillating-piston plays the effect that is similar to the flywheel storage device again, come the maximum force of balanced gas with maximum inertia force, again energy is progressively discharged subsequently, the stressed of piston and connecting rod bearing, crankshaft crank bearing reduced greatly, can reduce by 2.5 times approximately, reduce mechanical wear, improved working efficiency.
Oscillating-piston [3] is used sliding supported condition, because the support of Sealing, piston is suspended among the cylinder body, does not directly contact with cylinder body and rubs, and greatly reduces mechanical friction loss, has improved mechanical efficiency.Do not resemble not only piston directly friction in cylinder of Reciprocating engine, and piston bounces laterally in cylinder, produces horizontal slapping noise.
The present invention adopts cylinder body, cylinder cap, support, each crankshaft crank drives an oscillating-piston and two working cylinders of cylinder body formation through connecting rod, simplifies the structure greatly, and whole layout is the compactness of ten minutes again, thereby can accomplish little external dimension, low-cost and send big power.
The patent of invention that the present invention can adopt the inventor to declare on May 15th, 2006: swing piston compressor end surface sealing device, number of patent application: 200610082248.2, as end face seal of the present invention, can guarantee the sealing that motor is good.
The present invention to little, in, big all kinds of motors all can be suitable for, mini engine can adopt petrol engine, diesel engine, natural gas engine, can adopt diesel engine and heavy oil engine for big-block engine.
Description of drawings
See Fig. 1, Fig. 2
Fig. 1. single or multiple oscillating-piston series connection is two cylinder or multicylinder four-stroke internal combustion engine motor drawing in side sectional elevation.
Fig. 2. a plurality of oscillating-piston series connection are multicylinder four-stroke explosive motor schematic perspective view.
Be four oscillating-pistons [3] arranged in series shown in the figure, oscillating-piston use respectively again [Q], [R], [S], [T] gives mark, and each piston forms two cylinders, and cylinder [A], [C], [E], [G] are at the oscillating-piston pin On one side, [B], [D], [F], [H] are at the another side of oscillating-piston pin. Each cylinder is four-stroke-cycle worker independently Make cylinder, control the switching of every cylinder inlet and exhaust valve, the punctual gear of camshaft and bent axle by camshaft [9] and cam Gearratio is 2: 1, and bent axle turns to two and turns to, and camshaft is goed around.
As seen from Figure 2, synchronously swing of head and the tail two oscillating-pistons [Q], [T], middle two oscillating-pistons [R], [S] Synchronously swing. When the crankshaft rotating of position shown in Figure 2, [A] cylinder air intake valve is opened in cam control, and [A] cylinder advances Gas; [B] cylinder drain tap, the exhaust of [B] cylinder are opened in cam control; [C] cylinder drain tap, [C] are opened in cam control The cylinder exhaust; [D] cylinder air intake valve, the air inlet of [D] cylinder are opened in cam control. At this moment [E], [F], [G], [H] four The intake and exhaust valve of individual working cylinder all is in closed condition, and [E] cylinder carries out air compressing at this moment, the combustion gas of [F] cylinder The external work done of expanding, the combustion gas of [G] cylinder external work done of expanding, [H] cylinder air compressing.
Shown in figure: the 1-bent axle, the 2-connecting rod, the 3-oscillating-piston is used respectively again [Q], [R], [S], [T] Give mark, 4-oscillating-piston central shaft, 5-combined cylinder-block-crankcase unit, 6-integral cylinder head, 7-monoblock type Support, 8-inlet and exhaust valve, 9-camshaft and intake and exhaust cam, 10-cooling water channel, 11-radial seal Bar, 12-piston pin, 13-crank axle.
Universal machine tools are adopted in processing as seen from the figure, and boring machine, lathe, planer, milling machine, grinding machine just can be finished and add The worker, this processing than reciprocating engine is simply many.
With punctual and cross the transmission of crowded teeth wheel, the design of cam profile need guarantee that each cylinder advances between camshaft and bent axle Exhaust unimpeded, and reduce restriction loss and noise in the gas flow process, according to the variation of gas chamber volume, Valve all has aperture and the circulation area that adapts. Air valve structure is analogous to the air valve structure of reciprocating engine, Make by technology of the high strength heat resistant steel.
Swing piston compressor overall installation step is seen Fig. 2.
1, bent axle [1] device is in monoblock type support [7].
2, a plurality of oscillating-pistons [3] are loaded onto radially and edge face sealing member, by central shaft [4] combined cylinder-block-crankcase unit of packing into [5] in.
3, the little head bearing of connecting rod [2] and oscillating-piston [3] piston pin [12] are slidingly connected, connecting rod [2] bottom-end bearing and Bent axle [1] crank axle [13] is slidingly connected. Combined cylinder-block-crankcase unit this moment [5] rises and is hung in directly over the monoblock type support [7], Remain with the space of people's operation, also can be helped by manipulator the operation of staff this moment. Connecting rod installs, and is whole Body formula cylinder body [5] and support [7] tighten up by alignment pin and screw nut.
4, be installed into exhaust valve [8] in the integral cylinder head [6], lifting integral cylinder head [6], and combined cylinder-block-crankcase unit [5], By alignment pin, screw nut tightens up.
5, be installed at integral cylinder head [6], the parts such as exhaust valve [8], conduit, spring, locking member, peace The systems such as dress camshaft [9], rocking arm, push rod. Punctual gear is installed on the camshaft.
6, at bent axle [1] front end punctual gear, flywheel, shaft coupling are installed, install in bent axle [1] rear end fuel pump, The auxiliary equipment such as lubricating oil pump, water pump.
7, between bent axle and the punctual gear of camshaft, carrier gear can be installed on the body front end face.
Oscillating-piston two cylinder or multicylinder four-stroke explosive motor can adopt exhaust-driven turbo-charger exhaust-gas turbo charger that air inlet is carried out Supercharging.
The seal arrangement of each oscillating-piston adopts the inventor to design structure in the swing piston compressor end surface sealing device of declaring voluntarily, application for a patent for invention number: 200610082248.2.
Specific embodiments
Making single oscillation piston duplex cylinder compressor at present, major parameter is 3.8 liters of every cylinder working volumes, 7.6 liters of twin-tub swept volumes.Pressure of inspiration(Pi): atmospheric exhaust pressure 8 kgf/centimetres 2, 980 rev/mins of rotating speeds, piston border line speed 5.8 meter/second, cylinder water-cooling, the piston oil cooling can be finished prototype fabrication and Test Identification in 2006.Redesign cylinder head on this basis, improve compression ratio and compression pressure, just can be engaged in the Design and Machining of oscillating-piston two cylinder four stroke engine, can implement petrol engine, natural gas engine earlier, develop to the diesel engine direction then, and develop to four oscillating-piston multi-cylinder high power engine directions from single oscillating-piston.
Declared the binomial patent of invention prior to the present invention in 2006: 1. swing piston compressor end surface sealing device, application for a patent for invention number: 20061002248.2.2. integrated type super-large displacement ultrahigh pressure piston series connection multiple cylinder multiple level swing piston compressor, number of patent application: 200610115894.4, be the invention that the present invention goes ahead of the rest, for the invention process is laid a good foundation." integrated type super-large displacement ultrahigh pressure piston series connection multiple cylinder multiple level swing piston compressor " and " single or multiple oscillating-piston series connection is two cylinder or multicylinder four-stroke explosive motor " can be described as sister's invention, can lay a sheet of world in international power field.

Claims (3)

1, a kind of single or multiple oscillating-piston series connection is two cylinder or multicylinder four-stroke oscillating-piston motor, it is characterized in that: with four oscillating-piston eight cylinders is the standard type structure, with first oscillating-piston (Q), second oscillating-piston (R), the 3rd oscillating-piston (S), four oscillating-pistons of the 4th oscillating-piston (T) mark, head and the tail two oscillating-pistons, first oscillating-pistons (Q), the 4th oscillating-piston (T) is swing in the same way synchronously, middle two oscillating-pistons, second oscillating-pistons (R), the 3rd oscillating-piston (S) is swing in the same way synchronously, as first oscillating-piston (Q), when the 4th oscillating-piston (T) is swung synchronously clockwise, second oscillating-piston (R), the 3rd oscillating-piston (S) is counter-clockwise swing synchronously, bent axle revolution half way around, swaying direction of oscillating-piston change.
2, described a kind of single or multiple oscillating-piston series connection is two cylinder or multicylinder four-stroke explosive motor according to claim 1, it is characterized in that: four oscillating-pistons form eight cylinders that work alone, first working cylinder (A), second working cylinder (B), the 3rd working cylinder (C), the 4th working cylinder (D), the 5th working cylinder (E), the 6th working cylinder (F), the 7th working cylinder (G), the 8th working cylinder (H), every cylinder is by the work of four-stroke working principle, control the switching of each cylinder inlet and exhaust valve (8) by cam, each cylinder is pressed air inlet at each stroke, new air pressure contracts, spark ignitor or oil jetting combustion, expansion working, waste gas is discharged and is finished whole circulation, cam control is when first oscillating-piston (Q) clockwise direction is swung, first working cylinder (A) air inlet, second working cylinder (B) exhaust; Second oscillating-piston this moment (R) is swing counterclockwise, the 3rd working cylinder (C) exhaust, the 4th working cylinder (D) air inlet; The 3rd oscillating-piston (S) swing counterclockwise simultaneously, the 5th working cylinder (E) air compression, the 6th working cylinder (F) combustion gas expansion working; The 4th oscillating-piston (T) clockwise direction swing simultaneously, the 7th working cylinder (G) combustion gas expansion working, the 8th working cylinder (H) air compression, the compression work of the 5th working cylinder (E) is paid by the expansion work of the 6th working cylinder (F) by the 3rd swing (S) in this working stroke; The compression work of same the 8th working cylinder (H) is paid by the expansion work of the 7th working cylinder (G) by the 4th oscillating-piston (T), does not all need to transmit by connecting rod, bent axle, has significantly reduced the power loss of intermediary agency, has improved mechanical efficiency greatly.
3, a kind of single or multiple oscillating-piston series connection according to claim 1 is two cylinder or multicylinder four-stroke explosive motor, it is characterized in that: with the circulation of cam (9), inlet and exhaust valve (8) control gaseous, valve and cam design need guarantee the requirement of strength under the highpressure, and need to guarantee charging into fast and discharging of gas, reduce restriction loss and reduce noise.
CNB2006101358086A 2006-10-07 2006-10-07 Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons Expired - Fee Related CN100443706C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006101358086A CN100443706C (en) 2006-10-07 2006-10-07 Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006101358086A CN100443706C (en) 2006-10-07 2006-10-07 Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons

Publications (2)

Publication Number Publication Date
CN1959081A CN1959081A (en) 2007-05-09
CN100443706C true CN100443706C (en) 2008-12-17

Family

ID=38070919

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006101358086A Expired - Fee Related CN100443706C (en) 2006-10-07 2006-10-07 Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons

Country Status (1)

Country Link
CN (1) CN100443706C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949303A (en) * 2010-08-19 2011-01-19 谈磊 Gas engine of shaking piston
CN102213139A (en) * 2011-05-07 2011-10-12 苗军 Double-rotating-blade swinging type engine
CN102192001A (en) * 2011-05-07 2011-09-21 苗军 Rotating vane oscillating engine
CN113074211B (en) * 2021-03-25 2022-10-04 天津大学 Frequency-dependent passive intelligent variable damping control device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423710A (en) * 1981-11-09 1984-01-03 Williams Robert H High compression rotary engine
CN85100486B (en) * 1985-04-01 1988-10-26 谈诚 The two-stroke strokes oscillating piston internal combustion engine
CN1032057A (en) * 1988-10-04 1989-03-29 谈诚 Multi-cylinder integral assembly four strokes oscillating piston internal combustion engine
CN1005007B (en) * 1985-04-01 1989-08-16 谈诚 Internal-combustion engine with swing piston-four-cylinder engine
CN1041228C (en) * 1994-05-14 1998-12-16 谈诚 Fully closed seal device for swing piston IC engine
CN1280647A (en) * 1997-12-02 2001-01-17 哈尤创新股份公司 Pendulum piston motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423710A (en) * 1981-11-09 1984-01-03 Williams Robert H High compression rotary engine
CN85100486B (en) * 1985-04-01 1988-10-26 谈诚 The two-stroke strokes oscillating piston internal combustion engine
CN1005007B (en) * 1985-04-01 1989-08-16 谈诚 Internal-combustion engine with swing piston-four-cylinder engine
CN1032057A (en) * 1988-10-04 1989-03-29 谈诚 Multi-cylinder integral assembly four strokes oscillating piston internal combustion engine
CN1041228C (en) * 1994-05-14 1998-12-16 谈诚 Fully closed seal device for swing piston IC engine
CN1280647A (en) * 1997-12-02 2001-01-17 哈尤创新股份公司 Pendulum piston motor

Also Published As

Publication number Publication date
CN1959081A (en) 2007-05-09

Similar Documents

Publication Publication Date Title
CN1221731C (en) Split four stroke cycle IC engine
US20030070635A1 (en) Split four stroke engine
JP6330048B2 (en) Internal combustion engine
CN204827655U (en) Planetary gear train engine drive mechanism
US8499728B2 (en) Cylinder linkage method for a multi-cylinder internal-combustion engine and a multicylinder linkage compound internalcombustion engine
CN100443706C (en) Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons
WO1999006682A2 (en) Supercharged internal combustion compound engine
CN103821612A (en) Magnetic drive engine energy transmission system
US6021746A (en) arc-piston engine
CN101270688B (en) Piston rotor internal combustion engine
CN101608574A (en) CZD differential speed type reciprocating IC engine
CN201137519Y (en) Differential reciprocating-piston internal-combustion engines
EP0662192B1 (en) An internal combustion engine
CN114508414A (en) Internal combustion engine system
CN211314379U (en) Novel two-stroke engine unit
CN201723302U (en) Gas storage type returning internal combustion engine
CN113482771B (en) Split-cylinder four-stroke free piston generator and working method
CN213270064U (en) Double-cylinder supercharging device of engine
CN203822459U (en) Magnetic drive engine energy transfer system
CN201635834U (en) Gasoline-diesel dual-use volume-increasing energy-saving engine
RU2116509C1 (en) Engine-compressor
CN1614213A (en) Improvement of Otto cycle, Diesel cycle and Atkinson cycle
CN205936808U (en) Novel accumbency two -stroke -cycle engine
CN102135032A (en) Reciprocating two-stroke internal combustion engine with dual-surface piston arc-shaped cylinder
CN113047953A (en) Single-piston type internal combustion linear generator with two-stage compression expansion cycle

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
DD01 Delivery of document by public notice
DD01 Delivery of document by public notice

Addressee: Tan Cheng

Document name: Notification to Pay the Fees

DD01 Delivery of document by public notice
DD01 Delivery of document by public notice

Addressee: Tan Cheng

Document name: Notice of amendment

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081217

Termination date: 20181007