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公开(公告)号:US08281581B2
公开(公告)日:2012-10-09
申请号:US12254546
申请日:2008-10-20
申请人: Matthew R. Oliver , David S. Young , Cary Wright , Mike Smith
发明人: Matthew R. Oliver , David S. Young , Cary Wright , Mike Smith
IPC分类号: F01N1/00
CPC分类号: F01N13/1805 , F01N2240/20 , F01N2490/06 , F01N2590/08
摘要: An exhaust aftertreatment device has a unitary cast inlet that is configurable to have a 90° or 180° entry of combustion gasses relative to flow through tubular elements housing a diesel oxidization catalyst and a diesel particulate filter. The cast component provides the primary structural support for a tubular element connected to the casting element.
摘要翻译: 排气后处理装置具有一体式铸造入口,其可配置为相对于容纳柴油机氧化催化剂和柴油机微粒过滤器的管状元件流动而具有90°或180°的燃烧气体入口。 铸造组件为连接到铸件的管状元件提供主要的结构支撑。
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公开(公告)号:US20100095660A1
公开(公告)日:2010-04-22
申请号:US12254546
申请日:2008-10-20
申请人: Matthew R. Oliver , David S. Young , Cary Wright , Mike Smith
发明人: Matthew R. Oliver , David S. Young , Cary Wright , Mike Smith
IPC分类号: F01N7/00
CPC分类号: F01N13/1805 , F01N2240/20 , F01N2490/06 , F01N2590/08
摘要: An exhaust aftertreatment device has a unitary cast inlet that is configurable to have a 90° or 180° entry of combustion gasses relative to flow through tubular elements housing a diesel oxidization catalyst and a diesel particulate filter. The cast component provides the primary structural support for a tubular element connected to the casting element.
摘要翻译: 排气后处理装置具有一体式铸造入口,其可配置为相对于容纳柴油机氧化催化剂和柴油机微粒过滤器的管状元件流动而具有90°或180°的燃烧气体入口。 铸造组件为连接到铸件的管状元件提供主要的结构支撑。
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公开(公告)号:US20110133680A1
公开(公告)日:2011-06-09
申请号:US12633003
申请日:2009-12-08
IPC分类号: H02P1/04
CPC分类号: H02P1/04
摘要: The invention relates to a method of control fan speed in a fan speed control system having a cooling fan driven by a motor, a motor driver for driving the motor at a speed corresponding to a fan speed control signal, and an electronic control unit (ECU) for generating the fan speed control signal. The method includes generating a fan speed control signal and communicating the fan speed control signal to the motor driver so that the motor driver drives the motor at a speed corresponding to the fan speed control signal. If the fan speed control signal is at a level below a noisy fan speed range, then the ECU maintains the fan speed control signal below the noisy fan speed range until the ECU commands a fan speed above the noisy fan speed range. If the fan speed control signal is at a level above the noisy fan speed range, then the ECU maintains the fan speed control signal at a level above the noisy fan speed range until the ECU commands a fan speed below the noisy fan speed range. The method may also include generating a minimum fan speed control signal so that the motor driver drives the motor at a lowest speed that will allow the cooling fan to provide a desired cooling effect.
摘要翻译: 本发明涉及一种风扇转速控制系统中控制风扇转速的方法,该风扇转速控制系统具有由电动机驱动的冷却风扇,以与风扇转速控制信号对应的速度驱动电动机的电动机驱动器以及电子控制单元 ),用于产生风扇速度控制信号。 该方法包括产生风扇速度控制信号并将风扇速度控制信号传送到电动机驱动器,使得电动机驱动器以对应于风扇速度控制信号的速度驱动电动机。 如果风扇转速控制信号处于低于噪声风扇转速范围的水平,则ECU将风扇转速控制信号保持在嘈杂风扇转速范围以下,直到ECU将风扇转速高于嘈杂的风扇转速范围。 如果风扇转速控制信号处于高于噪声风扇转速范围的水平,则ECU将风扇转速控制信号保持在高于嘈杂风扇转速范围的水平,直到ECU将风扇转速低于嘈杂的风扇转速范围。 该方法还可以包括产生最小风扇速度控制信号,使得电动机驱动器以最低速度驱动电动机,其将允许冷却风扇提供期望的冷却效果。
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