[특허]Variable valve actuating apparatus for internal combustion engine

[미국특허] Variable valve actuating apparatus for internal combustion engine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01L-001/34
출원번호	US-0076172 (2008-03-14)
등록번호	US8061311 (2011-11-07)
우선권정보	JP-2007-007-112559(2007-04-23)
발명자 / 주소	Nakamura, Makoto
출원인 / 주소	Hitachi, Ltd.
대리인 / 주소	Foley & Lardner LLP
인용정보	피인용 횟수 : 7 인용 특허 : 18

초록 ▼

A variable valve actuating apparatus for an internal combustion engine includes an intake valve operating angle varying mechanism, an intake valve timing varying mechanism, and an exhaust valve timing varying mechanism. Before startup of the engine, the intake valve operating angle varying mechanism holds an intake valve operating angle at an intermediate value, the intake valve timing varying mechanism holds intake valve opening and closing timings most advanced, and the exhaust valve timing varying mechanism holds exhaust valve opening and closing timings most retarded.

대표청구항 ▼

What is claimed is: 1. A variable valve actuating apparatus for an internal combustion engine, comprising:an intake valve operating angle varying mechanism arranged to vary an intake valve operating angle of the internal combustion engine, and to hold an intake valve closing timing of the internal combustion engine at or near bottom dead center, before startup of the internal combustion engine;an exhaust valve timing varying mechanism arranged to vary an exhaust valve opening timing and an exhaust valve closing timing of the internal combustion engine, while holding constant an exhaust valve operating angle of the internal combustion engine, and to hold the exhaust valve opening timing and the exhaust valve closing timing retarded by a predetermined amount from respective predetermined most advanced timings such that a predetermined valve overlap between intake valve and exhaust valve is produced before the startup of the internal combustion engine; anda controller comprising a section configured to:perform a first operation before the startup of the internal combustion engine after a stop of the internal combustion engine, wherein the first operation comprises:setting the intake valve operating angle varying mechanism in a default position to hold the intake valve closing timing of the internal combustion engine at or near bottom dead center; andsetting the exhaust valve timing varying mechanism in a default position to hold the exhaust valve opening timing and the exhaust valve closing timing retarded by the predetermined amount from the respective predetermined most advanced timings such that the predetermined valve overlap between the intake valve and the exhaust valve is produced; andperform a second operation at the startup of the internal combustion engine, wherein the second operation comprises:determining whether or not the intake valve operating angle varying mechanism and the exhaust valve timing varying mechanism are in their respective default positions;outputting a control signal such that the intake valve operating angle varying mechanism and the exhaust valve timing varying mechanism move to their respective default positions, in response to a determination that the intake valve operating angle varying mechanism and the exhaust valve timing varying mechanism are not in their respective default positions; andoutputting a control signal such that the internal combustion engine starts combustion by a fuel injector and an ignition device, in response to a determination that the intake valve operating angle varying mechanism and the exhaust valve timing varying mechanism are in their respective default positions.

이 특허에 인용된 특허 (18) 인용/피인용 타임라인 분석

Shimizu, Hirokazu, Apparatus and method for controlling variable valve in internal combustion engine.
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Okamoto, Naoki, Apparatus for and method of controlling motion mechanism.
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Yoshiki Koichi,JPX ; Tsujii Keiji,JPX, Control device of an internal combustion engine.
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Takemura,Shinichi; Sugiyama,Takanobu; Ishizaki,Shin; Hiyoshi,Ryosuke; Arinaga,Tsuyoshi, Intake valve control apparatus and method for an internal combustion engine.
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Koseki, Takahisa; Oshimi, Youichi; Nagaishi, Hatsuo, Internal exhaust gas recirculation amount estimation system of internal combustion engines.
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Hartmann,Dirk, Method for operating an internal combustion engine having a plurality of cylinder banks.
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Hara,Seinosuke; Nakamura,Makoto, Valve operating apparatus of internal combustion engine.
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Kanada,Yoji; Komazawa,Osamu, Valve timing control apparatus for internal combustion engine.
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Suga,Seiji; Tsukada,Tomoya; Yoshida,Hidekazu, Valve timing control apparatus for internal combustion engine.
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Miyakoshi,Ryo; Machida,Kenichi; Watanabe,Masahiko; Kobayashi,Yoshiyuki, Valve timing control apparatus for internal combustion engine and control method thereof.
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Todo, Tamotsu; Watanabe, Masahiko, Valve timing control device of internal combustion engine.
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Nakamura, Makoto; Ichinosawa, Yoshinori; Tsukada, Tomoya; Hara, Seinosuke; Murakami, Tomoyuki, Variable valve actuating apparatus for internal combustion engine.
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Shindou,Shigeki, Variable valve actuating system and method.
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Suga, Seiji; Tsukada, Tomoya, Variable valve timing control apparatus of internal combustion engine.
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Suga,Seiji; Tsukada,Tomoya, Variable valve timing control apparatus of internal combustion engine.
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Suga,Seiji; Tsukada,Tomoya, Variable valve timing control apparatus of internal combustion engine.
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Yoshida,Takashi; Sukegawa,Yoshihiro, Variable valve type internal combustion engine and control method thereof.
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Nakamura, Makoto; Takemura, Shinichi, Variable-valve-actuation apparatus for internal combustion engine.
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이 특허를 인용한 특허 (7) 인용/피인용 타임라인 분석

Ito, Tomoki; Watanabe, Satoshi, Engine fuel injection control apparatus.
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Hamamoto, Takayuki; Tominaga, Kensuke; Yoshioka, Youko, Internal combustion engine.
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Pappenheimer, Andreas; Sommermann, Andreas, Method for cold-start pre-warming of a pressure-charged internal combustion engine and/or of an exhaust gas aftertreatment device.
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Oe, Shuhei; Andou, Hiroya; Yamada, Jun; Tanaka, Takehiro; Moriya, Yoshihito, Valve timing control apparatus.
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Nakamura, Makoto, Variable valve actuating apparatus for internal combustion engine, and controller for variable valve actuating apparatus.
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Ito, Hisaki; Ogawa, Takashi, Variable valve device of internal combustion engine.
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Rotter, Terrence M.; Bruso, Kevin C.; Lewis, Steven P., Variable valve timing apparatus and internal combustion engine incorporating the same.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Variable valve actuating apparatus for internal combustion engine 원문보기