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公开(公告)号:US09447797B2
公开(公告)日:2016-09-20
申请号:US14004737
申请日:2011-03-15
申请人: Dhinesh Sangiah , Paul Guerrier , Gary Powers
发明人: Dhinesh Sangiah , Paul Guerrier , Gary Powers
IPC分类号: F16K31/00 , F15B13/043 , F16K31/363 , B21D53/00 , H01L41/09
CPC分类号: F15B13/043 , B21D53/00 , F15B13/0436 , F16K31/006 , F16K31/363 , H01L41/094 , Y10T29/49405 , Y10T137/2322
摘要: A servovalve pilot stage (100) comprises a piezoelectric actuator (130) joined to a flow guide (132) and feedback wire (136) for connection to a main stage spool valve. The flow guide (132) and the piezoelectric actuator (130) may be integral.
摘要翻译: 伺服阀先导级(100)包括接合到导流器(132)的压电致动器(130)和用于连接到主级滑阀的反馈线(136)。 流动引导件(132)和压电致动器(130)可以是一体的。
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公开(公告)号:US20140042346A1
公开(公告)日:2014-02-13
申请号:US14004737
申请日:2011-03-15
申请人: Dhinesh Sangiah , Paul Guerrier , Gary Powers
发明人: Dhinesh Sangiah , Paul Guerrier , Gary Powers
IPC分类号: F15B13/043 , B21D53/00
CPC分类号: F15B13/043 , B21D53/00 , F15B13/0436 , F16K31/006 , F16K31/363 , H01L41/094 , Y10T29/49405 , Y10T137/2322
摘要: A servovalve pilot stage (100) comprises a piezoelectric actuator (130) joined to a flow guide (132) and feedback wire (136) for connection to a main stage spool valve.The flow guide (132) and the piezoelectric actuator (130) may be integral.
摘要翻译: 伺服阀先导级(100)包括接合到导流器(132)的压电致动器(130)和用于连接到主级滑阀的反馈线(136)。 流动引导件(132)和压电致动器(130)可以是一体的。
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公开(公告)号:US07100364B2
公开(公告)日:2006-09-05
申请号:US10633117
申请日:2003-08-01
IPC分类号: F01N3/00
CPC分类号: F01N9/005 , F02D41/0295 , F02D41/1402 , F02D41/1439 , F02D41/1446 , F02D41/1454 , F02D41/1475 , F02D41/1479 , F02D41/2454 , F02D2041/1433 , F02D2200/0814 , Y02T10/47
摘要: This invention relates to an apparatus for controlling the air-fuel ratio demanded by a fuel controller in order to maintain optimum performance of a catalytic converter. Provided is an open loop fuel controller comprising a detector arranged down stream of a catalyst for detecting rich breakthrough; a catalyst model having an estimator for estimating a stored oxygen level in the catalyst; a comparator for comparing an estimated stored oxygen level with a plurality of predetermined thresholds; demand adjusting means for adjusting an air fuel ratio demand in dependence upon a received signal from said comparator and upon a received signal from said detector. A method of open loop fuel control is also provided.
摘要翻译: 本发明涉及一种用于控制由燃料控制器要求的空燃比以便维持催化转化器的最佳性能的装置。 提供了一种开环燃料控制器,其包括设置在催化剂下游的检测器,用于检测丰富的突破; 催化剂模型,其具有用于估计催化剂中存储的氧气水平的估计器; 比较器,用于将估计存储的氧气水平与多个预定阈值进行比较; 需求调节装置,用于根据来自所述比较器的接收信号和来自所述检测器的接收信号来调整空燃比要求。 还提供了开环燃料控制的方法。
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