中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1018 records (took 0.027 seconds)

    ELECTROMAGNETIC VALVE ACTUATOR
    251.
    发明公开
    ELECTROMAGNETIC VALVE ACTUATOR 失效
    电磁阀执行器

    公开(公告)号：EP0406443A4

    公开(公告)日：1991-06-05

    申请号：EP90901025

    申请日：1990-07-18

    Applicant: ISUZU CERAMICS RESEARCH INSTITUTE CO., LTD.

    Inventor： KAWAMURA, HIDEO 13-5, OKADA 8-CHOME

    IPC: F01L9/04 ,  F02D13/02 ,  F16K31/06 ,  H01F7/16

    CPC classification number: F01L9/04 ,  F01L2201/00 ,  F02D13/0203 ,  F02D13/0253 ,  F02D2041/001 ,  H01F7/1638 ,  Y02T10/18

    Abstract: A valve actuator to open and close the intake and exhaust valves of an engine utilizing the electromagnetic force generated by an electromagnet. A reciprocally moving magnetic pole (6) is coupled to an intake or exhaust valve (9), an upper fixed magnetic pole (3a) is provided to be opposed to an end in the reciprocating direction of the moving magnetic pole (6), an intermediate fixed magnetic pole (3b) is provided to be opposed to one end of the moving magnetic pole (6) and to the upper fixed magnetic pole (3a), and a first tip-fixed magnetic pole (3c) is provided to be opposed to the other end of the moving magnetic pole (6). The intake or exhaust valve (9) is opened by the repelling force that acts between the upper fixed magnetic pole (3a) and one end of the moving magnetic pole (6). Being contiguous to the upper fixed magnetic pole (3a), furthermore, a second tip-fixed magnetic pole (3d) is provided to be opposed to the other end of the moving magnetic pole (6), and the intake or exhaust valve (9) is closed by the attracting force acting between the upper fixed magnetic pole (3a) and one end of the moving magnetic pole (6) that results from the magnetic flux passing through the second tip-fixed magnetic pole (3d). By changing the times for exciting the magnetic poles, therefore, the timings can be controlled to open and close the intake or exhaust valve (9).

    Abstract translation: 一种阀门致动器，利用电磁铁产生的电磁力打开和关闭发动机的进气门和排气门。 往复移动磁极（6）连接到进气或排气阀（9），上部固定磁极（3a）设置成与移动磁极（6）的往复方向的端部相对， 中间固定磁极（3b）设置成与移动磁极（6）的一端和上部固定磁极（3a）相对，并且第一端头固定磁极（3c）设置成相对 到移动磁极（6）的另一端。 通过作用在上部固定磁极（3a）和移动磁极（6）的一端之间的排斥力，进气阀或排气阀（9）打开。 此外，与上部固定磁极（3a）邻接，并且与移动磁极（6）的另一端相对地设置第二尖端固定磁极（3d），并且进气阀或排气阀 ）通过作用于上部固定磁极（3a）和移动磁极（6）的一端之间的作用于通过第二尖端固定磁极（3d）的磁通的吸引力而闭合。 因此，通过改变励磁磁极的时间，可以控制定时来打开和关闭进气阀或排气阀（9）。

    Cycle changeable engine
    252.
    发明公开
    Cycle changeable engine 失效
    Brennkraftmaschine mit variablem Zyklus。

    公开(公告)号：EP0397359A2

    公开(公告)日：1990-11-14

    申请号：EP90304613.4

    申请日：1990-04-27

    Applicant: Isuzu Motors Limited

    Inventor： Kawamura, Hideo

    IPC: F02D13/02 ,  F01L9/04 ,  F02B69/06

    CPC classification number: F02D13/0203 ,  F01L9/04 ,  F01L2201/00 ,  F02B1/04 ,  F02B3/06 ,  F02B69/06 ,  F02B75/02 ,  F02B2075/025 ,  F02B2075/027 ,  F02D13/0253 ,  F02D13/0257 ,  F02D13/028 ,  F02D39/00 ,  F02D2041/001 ,  F02F1/22 ,  Y02T10/18 ,  Y10S123/07

    Abstract: A cycle changeable engine includes first intake valves (1) for a four-cycle operation which are disposed in intake ports (11) formed in a cylinder head (3), exhaust valves (2) disposed in exhaust ports (22), second intake valves (5) for a two-cycle operation, disposed in intake ports (9) formed at the lower part of a cylinder (6), and an electromagnetic valve driving device (10) for opening and closing each of the valves by electro­magnetic force. The engine includes also a controller (15) which actuates either the first or second intake valves for opening and closing with the others being kept closed in response to a detection signal from detection means for detecting the number of revolutions or load of the engine, and changes the operational condition of the engine to the two-cycle or four-cycle operation. In this manner the engine is operated in the two-cycle operation at a low speed revolution of the engine to improve an output torque and is operated in the four-cycle operation at a high speed revolution of the engine to reduce fuel consumption, to improve mean effective pressure and volume efficiency and to reduce noise.

    Abstract translation: 循环可变发动机包括设置在形成在气缸盖（3）中的进气口（11）中的用于四循环操作的第一进气门（1），设置在排气口（22）中的排气门（2），第二进气口 设置在形成在气缸（6）的下部的进气口（9）中的用于两循环操作的阀（5）和用于通过电磁力打开和关闭每个阀的电磁阀驱动装置（10） 。 发动机还包括控制器（15），其响应于来自用于检测发动机的转数或负载的检测装置的检测信号而致动第一或第二进气门以打开和关闭其他进气门，其他进气门保持关闭，以及 将发动机的运行状态改变为两个循环或四个循环的运行。 以这种方式，发动机在发动机的低速旋转中以双循环操作操作，以提高输出扭矩，并且在发动机高速旋转的四循环操作中操作以减少燃料消耗，以改善 平均有效压力和体积效率并降低噪音。

    Pneumatic electronic valve actuator
    253.
    发明公开
    Pneumatic electronic valve actuator 失效
    电动机电动机。

    公开(公告)号：EP0328195A2

    公开(公告)日：1989-08-16

    申请号：EP89200227.0

    申请日：1989-02-02

    Applicant: MAGNAVOX ELECTRONIC SYSTEMS COMPANY

    Inventor： Richeson, William Edmond ,  Erickson, Frederick Logan

    IPC: F01L9/02 ,  F01L9/04

    CPC classification number: F02D13/0215 ,  F01L9/026 ,  F01L9/04 ,  F01L13/0005 ,  F01L2201/00 ,  F02D13/0261 ,  F02D13/0269 ,  F02D2013/0296 ,  F02D2041/001 ,  Y02T10/142 ,  Y10T137/86614

    Abstract: A bistable electronically controlled pneumatical­ly powered transducer for use, for example, as a valve mechanism in an internal combustion engine is disclosed. The transducer armature, an engine valve (31), for example, is powered by a pneumatic source and includes pneumatic damping and energy recovery as it nears its destination position. The armature is held in each of its extreme positions by a permanent magnet latching arrangement (39) and is released there­from to be pneumatically driven to the other extreme posi­tion by an electromagnetic arrangement (41) which temporarily neutralizes the permanent magnetic field of the latching arrangement. A multiplicity of engine operating modes are also disclosed including operation of an engine in a six stroke cycle mode, and a unique intake valve timing scheme where the intake valve closure is delayed beyond bottom dead center of its associated cylinder with the delay being greater at lower engine speeds and less at higher engine speeds.

    Abstract translation: 公开了一种用于内燃机中的阀机构的双稳态电控气动换能器。 传感器电枢，例如发动机气门（31）由气动源供电，并且包括当其靠近其目的位置时的气动阻尼和能量回收。 电枢通过永久磁体锁定装置（39）保持在其每个极限位置，并通过电磁装置（41）被释放以便被气动地驱动到另一个极限位置，电磁装置（41）暂时中和锁定装置的永久磁场 。 还公开了多种发动机操作模式，包括以六冲程循环模式运行发动机，以及独特的进气门正时方案，其中进气门关闭延迟超过其关联气缸的下死点，延迟更大 发动机转速更低，发动机转速更高。

    Vehicle system
    255.
    发明授权
    Vehicle system 有权

    公开(公告)号：US12055074B1

    公开(公告)日：2024-08-06

    申请号：US18507667

    申请日：2023-11-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Mark R. Claywell ,  Wesley Rieves Haney ,  Julie Starr

    IPC: F01L1/344 ,  F01L1/053 ,  F01L13/00

    CPC classification number: F01L1/3442 ,  F01L1/053 ,  F01L2013/105 ,  F01L2201/00 ,  F01L2800/11 ,  F01L2800/14 ,  F01L2820/033

    Abstract: A vehicle system includes a vehicle engine, a plurality of intake and exhaust valves coupled to the vehicle engine configured to adjust performance of the vehicle engine, and a camshaft coupled to the plurality of intake and exhaust valves and configured to control timing of the intake and exhaust valves. The vehicle system also includes a camshaft phaser configured to adjust the position of an engine's camshaft. Moreover, the vehicle system includes a vehicle processor. The vehicle processor is configured to store data including vehicle data, and apply increased oil pressure to the camshaft phaser based on vehicle data such that oil pressure is increased at a predetermined vehicle data range of camshaft phaser instability to prevent future camshaft position instability.

    Extended phaser range of authority for reduced effective compression ratio during engine starting
    256.
    发明授权
    Extended phaser range of authority for reduced effective compression ratio during engine starting 有权

    公开(公告)号：US11859520B1

    公开(公告)日：2024-01-02

    申请号：US18189579

    申请日：2023-03-24

    Applicant: FCA US LLC

    Inventor： Andrew L Morris ,  Craig A DeYoung

    IPC: F01L13/08 ,  F01L1/352

    CPC classification number: F01L13/08 ,  F01L1/352 ,  F01L2201/00 ,  F01L2800/01 ,  F01L2800/03

    Abstract: An electronic phaser system configured for use in an engine system is provided. The electronic phaser system comprises an intake camshaft, an electronic phaser and an engine control module (ECM). The intake camshaft has a plurality of camshaft lobes. The electronic phaser couples a gearbox to the intake camshaft. The electronic phaser is configured to rotationally advance the intake camshaft an amount of crank degrees to a desired rotational position. The ECM targets a desired cranking compression ratio based on one of an engine stop request and an engine start request. The ECM converts the desired cranking compression ratio into a camshaft lobe centerline position and commands the electronic phaser to rotate the intake camshaft to the desired rotational position that satisfies the camshaft lobe centerline position to achieve the desired cranking compression ratio. The desired cranking compression ratio is between 5:1 and 6:1.

Patent Agency Ranking