[특허]Electromechanical valve actuator beginning of stroke damper

Electromechanical valve actuator beginning of stroke damper 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01L-009/02 F01L-009/00
출원번호	US-0929969 (2004-08-30)
등록번호	US-7255073 (2007-08-14)
발명자 / 주소	Hopper,Mark L. Swales,Shawn H.
출원인 / 주소	Visteon Global Technologies, Inc.
대리인 / 주소	Dickinson Wright PLLC
인용정보	피인용 횟수 : 0 인용 특허 : 23

초록 ▼

An electromechanical valve actuator having a beginning of stroke damper to damp the impact between the armature stem and the valve stem as the valve is opened. The beginning of stroke damper includes an armature stem defining a stem passage and a valve stem including a lash compensator defining a cavity communicating with the stem passage. An oil pocket may be provided within the cavity to absorb the impact of the armature stem before the armature stem contacts the valve stem as the valve is opened. The lash compensator is configured so that the cavity has a discharge rate sufficient to ensure that the cavity completely drains at approximately the time the engine valve reaches the full open position.

대표청구항 ▼

What is claimed is: 1. A beginning of stroke damper for an electromechanical valve actuator comprising: an armature stem; a valve stem; a stem passage defined by one of said armature stem and said valve stem; a lash compensator defining a cavity, said cavity being in constant fluid communication with said stem passage and wherein said lash compensator is coupled to one of said valve stem and said armature stem, said lash compensator further including an annular sleeve and wherein said annular sleeve and the other of said valve stem and said armature stem define said cavity; and a stem plug coupled to said one stem having said stem passage, said stem plug defining a fluid passage communicating with said stem passage. 2. The beginning of stroke damper of claim 1 further including an annular gap, wherein said fluid passage has a maximum fluid passage supply rate and wherein said annular gap has a maximum fluid discharge rate, said maximum fluid discharge rate being approximately equal to or greater than said maximum fluid supply rate. 3. A beginning of stroke damper for an electromechanical valve actuator comprising: an armature stem; a valve stem; a stem passage defined by one of said armature stem and said valve stem; a lash compensator defining a cavity, said cavity being in constant fluid communication with said stem passage and wherein said lash compensator is coupled to one of said valve stem and said armature stem, said lash compensator further including an annular sleeve and wherein said annular sleeve and the other of said valve stem and said armature stem define said cavity, and wherein said annular sleeve and said other stem define an annular gap therebetween. 4. The beginning of stroke damper of claim 3 wherein said stem passage has a maximum stem passage supply rate and wherein said annular gap has a maximum fluid discharge rate, said maximum fluid discharge rate being approximately equal to or greater than said maximum stem passage supply rate. 5. A beginning of stroke damper for an electromechanical valve actuator comprising: an armature stem; a valve stern; a stem passage defined by said armature stem, and wherein said armature stem and said stem passage pass through an armature plate; and a lash compensator defining a cavity, said cavity being in constant fluid communication with said stem passage. 6. A beginning of stroke damper for an electromechanical valve actuator comprising: an armature stem; a valve stem; a stem passage defined by one of said armature stem and said valve stem; a lash compensator defining a cavity, said cavity being in constant fluid communication with said stem passage; and an annular gap between said lash compensator and one of said valve stem and said armature stem, said annular gap being in fluid communication with said stem passage and said cavity.

이 특허에 인용된 특허 (23)

Altdorf Joachim,DEX ; Schebitz Michael,DEX ; Hartmann Ernst-Siegfried,DEX ; Schwaderlapp Thomas,DEX ; Wahnschaffe Jurgen,DEX, Coupling device for connecting an electromagnetic actuator with a component driven thereby.
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Ableitner Erich (Remseck DEX), Cup tappet with hydraulic play compensation device.
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Mezger Hans (Freiberg DEX) Knneker Reinhard (Mnsheim DEX) Esch Hans-Joachim (Heimsheim DEX), Device for actuating a fuel-exchange poppet valve of a reciprocating internal-combustion engine.
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Thomas Stolk DE; Alexander von Gaisberg DE, Device for operating a gas exchange valve of an internal combustion engine.
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Schwegler, Roland; Stolk, Thomas; Stubel, Dirk; Von Gaisbert, Alexander, Device for operating a gas shuttle valve by means of an electromagnetic actuator.
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Gramann Matthias,DEX ; Nagel Michael,DEX ; Rockl Thomas,DEX ; Wilczek Rudolf,DEX, Electromagnetic actuator.
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Lohse Enno,DEX ; Muller Ulrich,DEX, Electromagnetic actuator for a cylinder valve including an integrated valve lash adjuster.
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Lange Holger,DEX ; Schebitz Michael,DEX, Electromagnetic actuator for an engine valve, including an integrated valve slack adjuster.
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Marcello Cristiani IT; Massimo Marchioni IT; Nicola Morelli IT, Electromagnetic actuator for the actuation of the valves of an internal combustion engine.
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Marchioni, Massimo; Morelli, Nicola, Electromagnetic actuator for the actuation of the valves of an internal combustion engine with recovery of mechanical play.
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Marcello Cristiani IT; Domenico Cannone IT; Nicola Morelli IT, Electromagnetic actuator for the control of the valves of an internal combustion engine.
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Schebitz Michael,DEX, Electromagnetic cylinder valve actuator having a valve lash adjuster.
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Leiber, Heinz, Electromagnetic drive.
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Leiber Heinz,DEX, Electromagnetic drive mechanism.
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Atsushi Umemoto JP; Kenji Abe JP; Yoshinori Onohara JP; Kouichi Ikoma JP, Electromagnetic driving valve of internal combustion engine.
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Bauer, Erwin; Hoerl-Liegl, Albert; Loebbering, Ferdinand; Loidl, Stefan, Electromagnetic multiple actuator.
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Morinigo Fernando B. ; Goldstein Carmi ; Bulgatz Dennis, Hinged armature electromagnetically actuated valve.
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Engelhardt Helmut,DEX ; Schmidt Dieter,DEX, Hydraulic clearance compensation element for valve control units of internal-combustion engines.
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Calogero Fiaccabrino FR, Method and device for electromagnetic valve actuating.
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Nicola Di Lieto IT; Gilberto Burgio IT; Roberto Flora IT, Method for the control of electromagnetic actuators for the actuation of intake and exhaust valves in internal combustion engines.
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Lin, Yingjie; Rodriguez, Lorenzo Guadalupe, Soft-landing plunger for use in a control valve.
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Shouji Katsumata JP; Yoshihiro Iwashita JP; Isao Matsumoto JP; Masaaki Tanaka JP; Keiji Yoeda JP; Hideyuki Nishida JP, Solenoid valve device.
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Komatsu Yasuyuki,JPX ; Hatano Harumi,JPX ; Ikoma Kouichi,JPX ; Nakamura Minoru,JPX, Valve operating system in internal combustion engine.
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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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Electromechanical valve actuator beginning of stroke damper 원문보기

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Electromechanical valve actuator beginning of stroke damper 원문보기

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