[특허]Automotive four-cycle engine

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02B-047/08 F01L-001/34
출원번호	US-0073278 (2002-02-13)
우선권정보	JP-0037526 (2001-02-14)
발명자 / 주소	Hitomi, Mitsuo Matsushita, Yasushi Ohba, Tadashige
출원인 / 주소	Mazda Motor Corporation
대리인 / 주소	Nixon Peabody LLP
인용정보	피인용 횟수 : 35 인용 특허 : 5

초록 ▼

A four-cycle engine is provided with valve timing adjusters for adjusting opening and closing timing an and an exhaust valve. In medium- to high-speed ranges in medium- to high-load regions of the engine, a closing point (ExC) of the exhaust valve defined as a point of transfer from an acceleration

A four-cycle engine is provided with valve timing adjusters for adjusting opening and closing timing an and an exhaust valve. In medium- to high-speed ranges in medium- to high-load regions of the engine, a closing point (ExC) of the exhaust valve defined as a point of transfer from an acceleration portion to a constant speed portion on its valve lift characteristics curve is set to a point a specific period before an intake top dead center, and an opening point (InO) of the intake valve defined as a point of transfer from a constant speed portion to an acceleration portion on its valve lift characteristics curve is set to a point after the intake top dead center. In addition, the period from the closing point (ExC) of the exhaust valve to the opening point (InO) of the intake valve is made longer in the medium-speed range than in the high-speed range in the medium- to high-load regions of the engine.

대표청구항 ▼

A four-cycle engine is provided with valve timing adjusters for adjusting opening and closing timing an and an exhaust valve. In medium- to high-speed ranges in medium- to high-load regions of the engine, a closing point (ExC) of the exhaust valve defined as a point of transfer from an acceleration

A four-cycle engine is provided with valve timing adjusters for adjusting opening and closing timing an and an exhaust valve. In medium- to high-speed ranges in medium- to high-load regions of the engine, a closing point (ExC) of the exhaust valve defined as a point of transfer from an acceleration portion to a constant speed portion on its valve lift characteristics curve is set to a point a specific period before an intake top dead center, and an opening point (InO) of the intake valve defined as a point of transfer from a constant speed portion to an acceleration portion on its valve lift characteristics curve is set to a point after the intake top dead center. In addition, the period from the closing point (ExC) of the exhaust valve to the opening point (InO) of the intake valve is made longer in the medium-speed range than in the high-speed range in the medium- to high-load regions of the engine. e connecting element is substantially circular. 16. The method of claim 11 wherein said main line has means for adjusting the length of said line. 17. The method of claim 11 wherein each of said at least two animal tethers has means for adjusting the length of said tether. 18. The method of claim 11 wherein each of said at least two animal tethers has a swivel means at each of their said distal ends. 19. The method of claims 11 wherein each of said at least two animal tethers has a snap hook each of their said distal ends for engaging in animal collar. 20. The method of claim 11 wherein said main line has at its proximate end a means for selectively receiving a human hand there through.

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이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

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A62	인명구조; 소방(사다리 E06C)
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[미국특허] Automotive four-cycle engine 원문보기

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[미국특허] Automotive four-cycle engine 원문보기

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