[go: up one dir, main page]

KR100292867B1 - Intake port of cylinder head - Google Patents

Intake port of cylinder head Download PDF

Info

Publication number
KR100292867B1
KR100292867B1 KR1019970043482A KR19970043482A KR100292867B1 KR 100292867 B1 KR100292867 B1 KR 100292867B1 KR 1019970043482 A KR1019970043482 A KR 1019970043482A KR 19970043482 A KR19970043482 A KR 19970043482A KR 100292867 B1 KR100292867 B1 KR 100292867B1
Authority
KR
South Korea
Prior art keywords
port
intake port
steel plate
cylinder head
intake
Prior art date
Application number
KR1019970043482A
Other languages
Korean (ko)
Other versions
KR19990020043A (en
Inventor
김규환
Original Assignee
이계안
현대자동차주식회사
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 이계안, 현대자동차주식회사 filed Critical 이계안
Priority to KR1019970043482A priority Critical patent/KR100292867B1/en
Publication of KR19990020043A publication Critical patent/KR19990020043A/en
Application granted granted Critical
Publication of KR100292867B1 publication Critical patent/KR100292867B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/08—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/10—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of charging or scavenging apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
    • F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
    • F02M29/06—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like generating whirling motion of mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: An intake port of a cylinder head is provided to prevent a wetting phenomenon, to finely form fuel and to reduce HC contained in exhaust gas by manufacturing the intake port by inserting a thin steel plate into a front end of a division wall. CONSTITUTION: An intake port(10) positioned between an intake manifold(11) and a combustion chamber(12) of a cylinder head. The intake port(10) includes a partition wall(15) dividing the first port(13) and the second port(14). A steel plate(19) is provided at a front end of the intake port(10). Both side ends of the steel plate(19) are fixedly inserted into a wall, and a rear end of the steel plate(19) is fixedly inserted into the partition wall(15). A hole(20) is formed at a front end of the steel plate(19). The first port(13) is communicated with the second port(14) through the hole(20).

Description

실린더 헤드의 흡기 포트Intake port of the cylinder head

본 발명은 실린더 헤드의 흡기 포트에 관한 것으로서, 더욱 상세하게는 흡기 매니폴드와 실린더 헤드 사이에 설치되는 흡기 포트의 분할벽 선단부에 얇은 스틸 플레이트를 삽입하여 종전과 같이 인젝터에서 분사되는 연료의 상당량이 분할벽의 두꺼운 선단부에 묻어서 젖는 위팅(Wetting) 현상을 방지할 수 있도록 함으로써, 연료의 미립화를 촉진시킬 수 있고 배기가스 중의 탄화수소(HC)를 저감시킬 수 있도록 한 실린더 헤드의 흡기 포트에 관한 것이다.The present invention relates to an intake port of a cylinder head, and more particularly, a considerable amount of fuel injected from an injector by inserting a thin steel plate at the distal end of the inlet port provided between the intake manifold and the cylinder head. The present invention relates to an intake port of a cylinder head capable of preventing the wet wetting phenomenon by being buried in the thick tip of the dividing wall, thereby promoting fuel atomization and reducing hydrocarbons (HC) in the exhaust gas.

첨부한 도 1은 연소실로 공급되는 연료와 공기의 통로인 종전 흡기 포트의 구조를 보여주고 있다.1 shows the structure of a conventional intake port, which is a passage of fuel and air supplied to a combustion chamber.

상기 흡기 포트(10)는 흡기 매니폴드(11)와 실린더 헤드 내의 연소실(12) 사이에서 플랜지를 통해 연결되며, 흡기 포트(10)의 내부에는 제1포트(13)와 제2포트(14)를 분할하는 분할벽(15)이 형성되어 있다.The intake port 10 is connected through the flange between the intake manifold 11 and the combustion chamber 12 in the cylinder head, and the first port 13 and the second port 14 inside the intake port 10. A dividing wall 15 for dividing is formed.

여기서, 미설명 부호 16은 연료 분사용 인젝터이고, 17은 스로틀 밸브이다.Here, reference numeral 16 is an injector for fuel injection, and 17 is a throttle valve.

또한, 상기 흡기 포트(10)의 일측에는 배기가스가 배출되는 통로인 배기 포트(18)가 갖추어져 있다.In addition, one side of the intake port 10 is provided with an exhaust port 18 that is a passage through which exhaust gas is discharged.

따라서, 흡기 매니폴드(11)를 통해서 유입되는 공기와 인젝터(16)에서 분사되는 연료는 흡기 포트(10)에서 섞여 미립화 된 혼합기 상태로 연소실(12)로 공급되고, 연소실(12)에 유입된 혼합기는 점화 플러그의 착화에 의해 연소되며, 연소된 배기가스는 배기 포트(18)를 통해 빠져 나가게 된다.Therefore, the air introduced through the intake manifold 11 and the fuel injected from the injector 16 are mixed in the intake port 10 and supplied to the combustion chamber 12 in an atomized mixer state, and introduced into the combustion chamber 12. The mixer is combusted by ignition of the spark plug, and the combusted exhaust gas exits through the exhaust port 18.

그러나, 흡기 포트(10)에 있는 분할벽(15)을 주조로 성형시, 그 선단부의 두께를 최대한 얇게 성형한다 해도 현재의 공법상 최소 3㎜ 정도로 두껍게 성형되므로, 인젝터(16)에서 분사되는 연료가 비교적 두꺼운 분할벽(15)의 선단부에 묻으면서 젖게 되는 위팅 현상이 일어나는 문제가 있다.However, at the time of molding the partition wall 15 in the intake port 10 by casting, even if the tip portion is formed as thin as possible, the fuel injected from the injector 16 is formed as thick as at least 3 mm in the current method. There is a problem that the witting phenomenon that gets wet while being buried in the tip portion of the partition wall 15 is relatively thick.

이러한, 위팅 현상은 연료의 미립화를 저해하고, 또 배기가스 중의 탄화수소 증가를 초래하게 되므로, 이에 대한 대책이 필요한 실정이다.Such a wiping phenomenon inhibits atomization of fuel and increases hydrocarbons in exhaust gas, and thus, a countermeasure is required.

따라서, 본 발명은 이와 같은 점을 감안하여 안출한 것으로서, 흡기 매니폴드와 실린더 헤드 사이에 설치되는 흡기 포트의 주조 성형시 분할벽의 선단부에 얇은 스틸 플레이트를 삽입하는 방법으로 흡기 포트를 제작함으로써, 종전과 같이 인젝터에서 분사되는 연료의 상당량이 분할벽의 두꺼운 선단부에 묻어서 젖는 위팅(Wetting) 현상을 방지할 수 있으며, 이에 따라 연료의 미립화를 촉진시킬 수 있고 배기가스 중의 탄화수소(HC)를 저감시킬 수 있도록 한 실린더 헤드의 흡기 포트를 제공하는데 그 안출의 목적이 있는 것이다.Accordingly, the present invention has been made in view of the above, and by manufacturing a intake port by inserting a thin steel plate at the tip of the dividing wall during casting molding of the intake port provided between the intake manifold and the cylinder head, As before, a significant amount of fuel injected from the injector may be buried in the thick tip of the dividing wall to prevent wet wetting, thereby promoting atomization of the fuel and reducing hydrocarbon (HC) in the exhaust gas. It is to provide an intake port of one cylinder head so that the purpose of the settling.

제1도는 종래의 흡기 포트를 개략적으로 나타내는 단면도.1 is a cross-sectional view schematically showing a conventional intake port.

제2도는 본 발명의 흡기 포트를 개략적으로 나타내는 단면도.2 is a cross-sectional view schematically showing the intake port of the present invention.

제3도는 본 발명에 따른 흡기 포트 및 스틸 플레이트의 사시도.3 is a perspective view of an intake port and a steel plate according to the present invention.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

10 : 흡기 포트 11 : 흡기 매니폴드10 Intake port 11 Intake manifold

12 : 연소실 13 : 제1포트12 combustion chamber 13 first port

14 : 제2포트 15 : 분할벽14: second port 15: partition wall

16 : 인젝터 17 : 스로틀 밸브16: injector 17: throttle valve

18 : 배기 포트 19 : 스틸 플레이트18: exhaust port 19: steel plate

20 : 홀 21 : 절곡부20: hole 21: bend

이하, 첨부한 도면을 참조하여 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 흡기 매니폴드(11)와 실린더 헤드 내의 연소실(12) 사이에서 플랜지를 통해 연결되고, 내부에는 제1포트(13)와 제2포트(14)를 분할하는 분할벽(15)을 포함하고 있는 흡기 포트(10)에 있어서, 상기 흡기 포트(10)의 선단부에는 양단은 벽면에 삽입 고정되는 동시에 후단은 분할벽(15) 끝에 삽입 고정되는 스틸 플레이트(19)가 구비되어 분할벽(15)의 기능을 수행할 수 있도록 된 것이 특징이다.The present invention comprises a partition wall 15 connected between the intake manifold 11 and the combustion chamber 12 in the cylinder head via a flange and dividing the first port 13 and the second port 14 therein. In the intake port 10, the front end portion of the intake port 10 is provided with a steel plate 19 having both ends inserted and fixed to the wall surface and a rear end inserted and fixed to the end of the dividing wall 15. It is characterized by being able to perform the function of).

특히, 상기 스틸 플레이트(19)의 앞쪽 끝에는 제1포트(13)와 제2포트(14)를 서로 통하게 하는 홀(20)이 형성된 것을 특징으로 한다.In particular, the front end of the steel plate 19 is characterized in that the hole 20 through which the first port 13 and the second port 14 pass through each other is formed.

이를 좀더 상세히 설명하면 다음과 같다.This will be described in more detail as follows.

도 2는 본 발명에 따른 흡기 포트의 내부 구조를 보여주는 단면도이고, 도 3은 본 발명에 따른 흡기 포트 및 스틸 플레이트를 보여주는 사시도이다.2 is a cross-sectional view showing the internal structure of the intake port according to the present invention, Figure 3 is a perspective view showing an intake port and a steel plate according to the present invention.

미도시된 공기 청정기와 연결되는 흡기 매니폴드(11)와 실린더 헤드 내의 연소실(12)에 연결되는 흡기 포트(10)가 플랜지 결합되어 있고, 상기 흡기 포트(10)의 중앙에는 제1포트(13)와 제2포트(14)를 분할하는 분할벽(15)이 흡기 포트(10)의 길이방향을 따라 길게 입설되어 있다.An intake manifold 11 connected to an air cleaner not shown and an intake port 10 connected to the combustion chamber 12 in the cylinder head are flanged, and a first port 13 is located at the center of the intake port 10. ) And the dividing wall 15 for dividing the second port 14 are formed long along the longitudinal direction of the intake port 10.

그리고, 흡기 매니폴드(11)의 단부에는 연료를 분사하는 인젝터(16)가 설치되어 있고, 흡기 매니폴드(11)의 한쪽 흡기 통로에는 가속 페달의 조작에 대응되게 작동되어서 흡입되는 공기량을 조절하게 되는 스로틀 밸브(17)가 설치되어 있으며, 실린더 헤드 내의 연소실(12)에는 연료 연소시 발생된 배기가스가 배출되도록 배기포트(18)가 연결되어 있다.An injector 16 for injecting fuel is provided at an end of the intake manifold 11, and one intake passage of the intake manifold 11 is operated in correspondence with the operation of the accelerator pedal to adjust the amount of intake air. A throttle valve 17 is provided, and an exhaust port 18 is connected to the combustion chamber 12 in the cylinder head so that the exhaust gas generated during fuel combustion is discharged.

또한, 흡기 포트(10)의 입구측 선단부에는 약 1~2㎜ 정도의 두께를 갖는 스틸 플레이트(19)가 일체 설치되어 있고, 스틸 플레이트(19)의 앞쪽 끝에는 제1포트(13)와 제3포트(14)가 관통되게 하는 홀(20)이 형성되어 있다.In addition, a steel plate 19 having a thickness of about 1 to 2 mm is integrally provided at the inlet side tip portion of the intake port 10, and the first end 13 and the third port are provided at the front ends of the steel plate 19. A hole 20 is formed through which the port 14 passes.

여기서, 상기 스틸 플레이트(19)는 실린더 헤드 및 흡기 포트(10)의 주조 성형시 일체 삽입되어 함께 주조 성형되며, 이때 스틸 플레이트(19)의 양단 절곡부(21)가 흡기 포트(10)의 양쪽 벽면에 삽입되는 동시에 뒷쪽 끝이 분할벽(15)의 선단부에 삽입됨에 따라 스틸 플레이트(19)는 흡기 포트(10)의 주조 성형 완료와 동시에 일체형으로 설치될 수 있게 된다.Here, the steel plate 19 is integrally inserted and cast together when the cylinder head and the intake port 10 are formed by casting, wherein both ends of the steel plate 19 are formed at both ends of the intake port 10. As the rear end is inserted into the front end of the dividing wall 15 while being inserted into the wall surface, the steel plate 19 can be integrally installed at the same time as the casting molding of the intake port 10 is completed.

이와 같이 구성된 본 발명의 작용효과를 설명하면 다음과 같다.Referring to the effects of the present invention configured as described above are as follows.

먼저, 연소실(12)에는 한쪽 흡입 통로를 통해 유입되는 공기와, 가속 페달의 작동에 대응되게 개폐되는 스로틀 밸브(7)에 의해 유입량이 조절되는 공기가 유입되어지는 한편, 인젝터(16)에서 분사되는 연료가 유입되게 된다.First, the air flowing into one of the combustion chambers 12 is introduced into the combustion chamber 12, and the air whose inflow amount is controlled by the throttle valve 7 which is opened and closed in response to the operation of the accelerator pedal is introduced, while the injector 16 is injected. The fuel to be introduced.

이때, 유입되는 공기와 분사되는 연료는 미립화 상태로 혼합되어 연소실(12)에 유입되게 된다.At this time, the incoming air and the injected fuel are mixed in an atomized state and introduced into the combustion chamber 12.

여기서, 인젝터(16)에서 분사되는 연료는 분할벽(15)의 선단부에 있는 스틸 플레이트(19)를 사이에 두고 제1포트(13)와 제2포트(14)로 균형있게 분할되고, 미립화 된 상태에서 공기와 혼합되어 연소실(12)로 유입되어질 수 있게 되며, 이때의 스틸 플레이트(19)는 그 두께가 얇기 때문에 연료가 묻어서 젖는 위팅 현상이 일어나지 않게 되므로, 종전 위팅 현상으로 인해 연료의 미립화가 저해되는 문제를 방지할 수 있게 되며, 더 나아가 배기가스 중에 포함되어 있는 탄화수소의 양을 현저하게 격감시킬 수 있게 된다.Here, the fuel injected from the injector 16 is divided into the first port 13 and the second port 14 in a balanced manner, with the steel plate 19 at the distal end of the dividing wall 15, and atomized. In the state it can be mixed with the air to be introduced into the combustion chamber 12, the steel plate 19 at this time is because the thickness of the fuel is buried because the wet witting phenomenon does not occur, the atomization of the fuel due to the previous wit phenomenon The problem of being inhibited can be prevented, and further, the amount of hydrocarbon contained in the exhaust gas can be significantly reduced.

이상에서와 같이 본 발명은 흡기 포트의 분할벽 선단부에 스틸 플레이트를 설치하여 이것이 분할벽의 역할을 할 수 있도록 함으로써, 연소효율 향상과 배기가스 저감의 효과를 기대할 수 있는 장점이 있는 것이다.As described above, the present invention is provided with a steel plate at the tip of the partition wall of the intake port so that this can serve as a partition wall, thereby improving the combustion efficiency and reducing the exhaust gas.

Claims (2)

흡기 매니폴드(11)와 실린더 헤드상의 연소실(12) 사이에서 플랜지를 통해 연결되고, 내부에는 제1포트(13)와 제2포트(14)를 분할하는 분할벽(15)을 포함하고 있는 흡기 포트(10)에 있어서, 상기 흡기 포트(10)의 선단부에는 양단은 벽면에 삽입 고정되는 동시에 후단은 분할벽(15) 끝에 삽입 고정되는 스틸 플레이트(19)가 구비되어 분할벽(15)의 기능을 수행할 수 있도록 된 것을 특징으로 하는 실린더 헤드의 흡기 포트.Intake is connected between the intake manifold 11 and the combustion chamber 12 on the cylinder head via a flange, and includes a partition wall 15 that divides the first port 13 and the second port 14 therein. In the port 10, the front end portion of the intake port 10 is provided with a steel plate 19, both ends of which are inserted and fixed to the wall surface and the rear end is inserted and fixed to the end of the dividing wall 15 to function as the dividing wall 15. Intake port of the cylinder head, characterized in that capable of performing. 제1항에 있어서, 상기 스틸 플레이트(19)의 앞쪽 끝에는 제1포트(13)와 제2포트(14)를 서로 통하게 하는 홀(20)이 형성된 것을 특징으로 하는 실린더 헤드의 흡기 포트.The intake port of a cylinder head according to claim 1, characterized in that a hole (20) is formed at the front end of the steel plate (19) to allow the first port (13) and the second port (14) to pass through each other.
KR1019970043482A 1997-08-30 1997-08-30 Intake port of cylinder head KR100292867B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970043482A KR100292867B1 (en) 1997-08-30 1997-08-30 Intake port of cylinder head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970043482A KR100292867B1 (en) 1997-08-30 1997-08-30 Intake port of cylinder head

Publications (2)

Publication Number Publication Date
KR19990020043A KR19990020043A (en) 1999-03-25
KR100292867B1 true KR100292867B1 (en) 2001-09-17

Family

ID=37526373

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970043482A KR100292867B1 (en) 1997-08-30 1997-08-30 Intake port of cylinder head

Country Status (1)

Country Link
KR (1) KR100292867B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160004008U (en) 2015-05-13 2016-11-23 우형욱 The partition easy to carry and install

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100587802B1 (en) * 2002-10-09 2006-06-12 현대자동차주식회사 Gasket with dividing wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160004008U (en) 2015-05-13 2016-11-23 우형욱 The partition easy to carry and install

Also Published As

Publication number Publication date
KR19990020043A (en) 1999-03-25

Similar Documents

Publication Publication Date Title
JPH076395B2 (en) Internal combustion engine intake system
KR100292867B1 (en) Intake port of cylinder head
JP2605777Y2 (en) Engine intake system
JPH08135455A (en) Intake control device for engine
JPH09317476A (en) Cylinder fuel injection type engine
JP3303619B2 (en) Fuel supply device for internal combustion engine
JP2976601B2 (en) Intake system for fuel injection type internal combustion engine
KR100231339B1 (en) Gasoline engine of car
JPH05223040A (en) Intake device for engine
JP3047211B2 (en) Diesel engine swirl chamber combustion chamber
JP2594992Y2 (en) Engine intake system
JP2890972B2 (en) Fuel injection device for internal combustion engine
JP3198688B2 (en) Internal combustion engine
KR100633403B1 (en) Adapter device for injectors to prevent wall wetting
KR200157599Y1 (en) Intake port wall with hole
JP2523564Y2 (en) Intake device for internal combustion engine
KR100489085B1 (en) intake manifold system for engine of vehicles
JPS59702B2 (en) Intake system for fuel-injected internal combustion engines
JPH0861190A (en) Fuel injection type engine
JP3392907B2 (en) Intake device for 4-cycle internal combustion engine
JPS6327094Y2 (en)
JPH0654108B2 (en) Engine intake system
JPH09291868A (en) Fuel injection-type multiple-cylinder engine
KR20000042275A (en) Eddy current control valve for suction port of automobile engine
KR19980036456U (en) Direct injection head structure of vehicle

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19970830

PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19970830

Comment text: Request for Examination of Application

PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20000224

Patent event code: PE09021S01D

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 20001228

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20010327

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20010328

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee