KR890010397A - 밸브장치 - Google Patents

밸브장치 Download PDF

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Publication number
KR890010397A
KR890010397A KR1019880016317A KR880016317A KR890010397A KR 890010397 A KR890010397 A KR 890010397A KR 1019880016317 A KR1019880016317 A KR 1019880016317A KR 880016317 A KR880016317 A KR 880016317A KR 890010397 A KR890010397 A KR 890010397A
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KR
South Korea
Prior art keywords
valve
exhaust
internal combustion
combustion engine
timing
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KR1019880016317A
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English (en)
Inventor
사토시 다께야마
야스오 마츠모도
Original Assignee
구메 유다까
닛산지도오샤 가부시기가이샤
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Priority claimed from JP18704487U external-priority patent/JPH0191006U/ja
Priority claimed from JP19025787U external-priority patent/JPH0193311U/ja
Priority claimed from JP31719087A external-priority patent/JPH01159417A/ja
Application filed by 구메 유다까, 닛산지도오샤 가부시기가이샤 filed Critical 구메 유다까
Publication of KR890010397A publication Critical patent/KR890010397A/ko

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0203—Variable control of intake and exhaust valves
    • F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
    • F02D13/0219—Variable control of intake and exhaust valves changing the valve timing only by shifting the phase, i.e. the opening periods of the valves are constant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
    • F01L13/0026—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio by means of an eccentric
    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/08—Modifying distribution valve timing for charging purposes
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0242—Variable control of the exhaust valves only
    • F02D13/0246—Variable control of the exhaust valves only changing valve lift or valve lift and timing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0242—Variable control of the exhaust valves only
    • F02D13/0249—Variable control of the exhaust valves only changing the valve timing only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0257—Independent control of two or more intake or exhaust valves respectively, i.e. one of two intake valves remains closed or is opened partially while the other is fully opened
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0261—Controlling the valve overlap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L2001/188—Fulcrums at upper surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • F01L2800/06—Timing or lift different for valves of same cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/032—Electric motors
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D2013/0296—Changing the valve lift only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

내용 없음

Description

밸브장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 본 발명의 일시예에 의한 밸브 개폐타이밍도.
제 2 도는 제 1 도의 실시예에 사용되는 배기밸브의 동작캠축의 측면도.
제 3 도는 제 1 도의 실시예와 종래예와의 배기통로내의 압력파를 비교하였을 경우의 변화량의 크기를 설명하는 도면.
제 4 도는 제 1 도의 실시예와 종래예와의 배기포오트압력을 비교하였을 경우의 변화량의 크기를 설명하는 도면.

Claims (14)

1개의 실린더에 복수의 배기밸브를 가진 내연기관용 밸브장치에 있어서, 위상차를 가진 블로우다운 압력을 발생하여 밸브타이밍으로 배기밸브가 열리도록 구동하는 수단을 갖춘 것을 특징으로 하는 밸브장치.
1개의 실린더에 복수의 배기밸브를 가진 내연기관용 밸브장치에 있어서, 서로 다른 시간에 상기 배기밸브가 완전히 닫혀지도록 밸브타이밍으로 상기 배기밸브를 구동하는 수단을 갖춘 것을 특징으로 하는 밸브장치.
제 2 항에 있어서, 상기 내연기관은 1개의 실린더에 2개의 배기밸브로 구성되며, 상기 배기밸브의 닫힘 동작은 같은 속도로 행하는 것을 특징으로 하는 밸브장치.
제 3 항에 있어서, 상기 배기밸브는 상기 내연기관의 흡기밸브와 함께 밸브겹침을 행하는 것을 특징으로 하는 밸브장치.
제 2 항에 있어서, 상기 내연기관은 1개의 실린더에 3개의 배기밸브를 가지고 상기 배기밸브의 닫힘동작은 서로 다른 속도로 행하는 것을 특징으로 하는 밸브장치.
제 5 항에 있어서, 상기 배기밸브는 상기 내연기관의 흡기밸브와 함께 밸브겹침을 행하는 것을 특징으로 하는 밸브장치.
1개의 실린더에 복수의 배기밸브를 가진 내연기관용 밸브장치에 있어서, 상기 배기밸브가 동시에 개폐하고, 서로 다른 밸브양정량을 발생하도록 밸브타이밍으로 상기 배기밸브를 구동하는 수단을 갖춘 것을 특징으로 하는 밸브장치.
제 8 항에 있어서, 상기 배기밸브는 상기 내연기관의 흡기밸브와 함께 밸브겹침을 행하는 것을 특징으로 하는 밸브장치.
1개의 실린더에 복수의 배기밸브를 가진 내연기관용 밸브장치에 있어서, 가변상태 타이밍으로 상기 배기밸브를 구동하는 수단과, 상기 내연기관의 작동변화에 상기 상대타이밍이 변화하도록 상기 구동수단을 제어하는 수단을 갖춘 것을 특징으로 하는 밸브장치.
1개의 실린더에 2개의 배기밸브를 가진 내연기관용 밸브장치에 있어서, 고정밸브타이밍 및 양정량으로 상기 배기밸브중 하나를 구동하는 제 1 구동수단과, 가변밸브타이밍 및 양정량으로 상기 배기밸브의 다른 하나를 구동하는 제2 구동수단과, 상기 내연기관의 동작변화량에 따라서 상기 다른 배기밸브의 상기 밸브타이밍을 변화시키도록 상기 제 2 구동수단을 제어하는 제어수단을 갖춘 것을 특징으로 하는 밸브장치.
제10항에 있어서, 상기 고정밸브타이밍 및 양정량은 내연기관의 상기 하나의 배기밸브와 흡기밸브의 제1 밸브겹침을 행하고 상기 제어수단은 상기 내연기관의 고속회전영역에서 상기 하나의 배기밸브와 함께 동일한 밸브타아밍 및 양정량으로 상기 제 2 구동수단을 구동해서 상기 다른 배기밸브를 구동하고, 제 2 밸브타이밍 및 양정량은 상기 하나의 배기밸브가 열리고 나서 상기 다른 배기밸브를 열고 상기 하나의 배기밸브가 닫히기 직전에 상기 다른 배기밸브를 닫으며 상기 하나의 배기밸브의 최대밸브 양정량보다 작게해서 상기 내연기관의 중간속도·고부하 영역에서 상기 흡기밸브가 열리기 전에 상기 다른 배기밸브를 완전히 닫고, 제1, 제2 밸브타이밍 및 양정량 사이의 대체로 중간에 있는 제 3 밸브타이밍 및 양정량은 상기 내연기관의 중간속도·고부하영역외에서 상기 엔진의 낮은 중간속도 동작시에 소정의 밸브겹침을 행하는 것을 특징으로 하는 밸브장치.
제11항에 있어서, 상기 내연기관의 상기 중간속도 고부하영역은 불로우다운압력에 기인하는 출력토오크의 하강을 발생하는 상기 내연기관의 동작영역에 대응하는 것을 특징으로 하는 밸브장치.
제10항에 있어서, 상기 고정밸브타이밍 및 양정량은 내연기관의 상기 하나의 배기밸브와 흡기밸브의 제 1 밸브겹침을 행하고, 상기 제어수단은 상기 내연기관의 고속회전영역에서 상기 하나의 배기밸브와 함께 동일한 밸브타이밍 및 양정량으로 상기 제 2 구동수단을 구동해서 상기 다른 배기밸브를 구동하고, 제 2 밸브타아밍 및 양정량은 상기 하나의 배기밸브가 열리고 나서 상기 다른 배기밸브를 열고 상기 하나의 배기밸브가 닫히기 직전에 상기 다른 배기밸브를 닫으며 상기 하나의 배기밸브의 최대밸브양정량 보다 작게해서 상기 내연기관의 특정 중간속도·고부하영역에서 상기 흡기밸브가 열리기전에 상기 다른 배기밸브를 완전히 닫고, 제1, 제2 밸브타이밍 및 양정량 사이의 대체로 중간에 있는 제 3 밸브타이밍 및 양정량은 내연기관의 상기 특정 중간속도·고부하영역외에서 상기 엔진의 낮은 중간속도 동작시에 소정의 밸브겹침을 행하는 것을 특징으로 하는 밸브장치.
제13항에 있어서, 상기 내연기관의 상기 특정 중간속도 고부하영역은 불로우다운압력에 기인하는 출력토오크의 하강을 발생하는 상기 내연기관의 동작영역에 대응하는 것을 특징으로 하는 밸브장치.
※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880016317A 1987-12-05 1988-12-08 밸브장치 KR890010397A (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP?62-317190 1987-12-05
JP18704487U JPH0191006U (ko) 1987-12-08 1987-12-08
JP?62-187044 1987-12-08
JP19025787U JPH0193311U (ko) 1987-12-15 1987-12-15
JP?62-190257 1987-12-15
JP31719087A JPH01159417A (ja) 1987-12-15 1987-12-15 内燃機関の弁装置

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Also Published As

Publication number Publication date
DE3875593D1 (de) 1992-12-03
DE3875593T2 (de) 1993-03-11
EP0319956B1 (en) 1992-10-28
US4964375A (en) 1990-10-23
EP0319956A1 (en) 1989-06-14

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