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公开(公告)号：US07963277B2
公开(公告)日：2011-06-21
申请号：US12147037
申请日：2008-06-26
IPC分类号： F02M25/07
CPC分类号： F02M26/55
摘要： An exhaust gas recirculation system has an EGR valve disposed in an EGR duct connecting an engine intake and exhaust. A diaphragm of said EGR valve is actuated via vacuum from the engine intake, the application of the vacuum is controlled via an electronic valve regulator (EVR). The EVR is provided a fixed signal to cause it to be fully open when it is determined that the engine is about to encounter a condition in which there is insufficient vacuum to open the EGR valve. The EVR is provided a variable signal during other operating conditions in which there is sufficient vacuum to open the EGR valve.
摘要翻译： 排气再循环系统具有设置在连接发动机进气和排气的EGR管道中的EGR阀。 所述EGR阀的隔膜通过来自发动机进气口的真空致动，通过电子阀调节器（EVR）控制真空的施加。 当确定发动机即将遇到没有足够的真空来打开EGR阀的状况时，EVR被提供固定信号以使其完全打开。 EVR在其中具有足够的真空以打开EGR阀的其它操作条件下被提供可变信号。
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公开(公告)号：US20090320811A1
公开(公告)日：2009-12-31
申请号：US12147037
申请日：2008-06-26
CPC分类号： F02M26/55
摘要： An exhaust gas recirculation system has an EGR valve disposed in an EGR duct connecting an engine intake and exhaust. A diaphragm of said EGR valve is actuated via vacuum from the engine intake, the application of the vacuum is controlled via an electronic valve regulator (EVR). The EVR is provided a fixed signal to cause it to be fully open when it is determined that the engine is about to encounter a condition in which there is insufficient vacuum to open the EGR valve. The EVR is provided a variable signal during other operating conditions in which there is sufficient vacuum to open the EGR valve.
摘要翻译： 排气再循环系统具有设置在连接发动机进气和排气的EGR管道中的EGR阀。 所述EGR阀的隔膜通过来自发动机进气口的真空致动，通过电子阀调节器（EVR）控制真空的施加。 当确定发动机即将遇到没有足够的真空来打开EGR阀的状况时，EVR被提供固定信号以使其完全打开。 EVR在其中具有足够的真空以打开EGR阀的其它操作条件下被提供可变信号。
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公开(公告)号：US07762242B2
公开(公告)日：2010-07-27
申请号：US12134275
申请日：2008-06-06
摘要： A system and method for controlling a multiple cylinder internal combustion engine include a mechanically operated exhaust gas recirculation valve having a spring-biased pintle with a surface area sized to generate a spring-opposing force to open a valve chamber entrance when an exhaust pressure differential exceeds a first threshold to allow exhaust gas to flow toward an intake and to close a valve chamber exit spaced from the chamber entrance to block exhaust gas flowing to the intake when the pressure differential exceeds a second threshold. The valve operates to limit or block external EGR flow at low load such as during starting and idle as well as at wide-open throttle while metering EGR flow for mid-to-high loads.
摘要翻译： 用于控制多缸内燃机的系统和方法包括机械操作的废气再循环阀，其具有弹簧偏置枢栓，其表面积的尺寸被设计成当排气压力差超过时产生弹簧相反的力以打开阀室入口 允许废气朝向进气口流动并且关闭与腔室入口间隔开的阀室出口的第一阈值，以阻止当压差超过第二阈值时流入进气口的排气。 该阀用于限制或阻止低负载时的外部EGR流量，例如在起动和空转期间以及在宽敞的节流阀处，同时计量中至高负载的EGR流量。
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公开(公告)号：US20090019851A1
公开(公告)日：2009-01-22
申请号：US11780066
申请日：2007-07-19
IPC分类号： F02B47/08
摘要： A system and method for controlling EGR of an internal combustion engine is presented. The system is capable of controlling EGR over a wide range of flow rates.
摘要翻译： 提出了一种用于控制内燃机的EGR的系统和方法。 该系统能够在较宽的流量范围内控制EGR。
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公开(公告)号：US08042528B2
公开(公告)日：2011-10-25
申请号：US12533576
申请日：2009-07-31
CPC分类号： F02D41/0072 , F02D41/1448 , F02D41/2451 , F02D41/2464 , F02D2041/141 , F02D2200/0406 , F02M26/23 , F02M26/35 , F02M26/47 , Y02T10/47
摘要： A system and method for controlling an internal combustion engine having an EGR valve determine a base valve position to deliver a target flow using a stored map and adjust the base position in response to differential pressure across an orifice in the EGR flow to move the valve to a position different from the base position to provide the target flow.
摘要翻译： 用于控制具有EGR阀的内燃机的系统和方法确定基座阀位置以使用存储的映射传送目标流，并且响应于EGR流中的孔口上的压差来调节基座位置，以将阀移动到 与基座位置不同的位置以提供目标流。
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公开(公告)号：US20110023847A1
公开(公告)日：2011-02-03
申请号：US12533576
申请日：2009-07-31
CPC分类号： F02D41/0072 , F02D41/1448 , F02D41/2451 , F02D41/2464 , F02D2041/141 , F02D2200/0406 , F02M26/23 , F02M26/35 , F02M26/47 , Y02T10/47
摘要： A system and method for controlling an internal combustion engine having an EGR valve determine a base valve position to deliver a target flow using a stored map and adjust the base position in response to differential pressure across an orifice in the EGR flow to move the valve to a position different from the base position to provide the target flow.
摘要翻译： 用于控制具有EGR阀的内燃机的系统和方法确定基座阀位置以使用存储的映射传送目标流，并且响应于EGR流中的孔口上的压差来调节基座位置，以将阀移动到 与基座位置不同的位置以提供目标流。
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公开(公告)号：US07743757B2
公开(公告)日：2010-06-29
申请号：US11780066
申请日：2007-07-19
IPC分类号： F02B47/08
摘要： A system and method for controlling EGR of an internal combustion engine is presented. The system is capable of controlling EGR over a wide range of flow rates.
摘要翻译： 提出了一种用于控制内燃机的EGR的系统和方法。 该系统能够在较宽的流量范围内控制EGR。
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公开(公告)号：US20090301447A1
公开(公告)日：2009-12-10
申请号：US12134275
申请日：2008-06-06
IPC分类号： F02M25/07
摘要： A system and method for controlling a multiple cylinder internal combustion engine include a mechanically operated exhaust gas recirculation valve having a spring-biased pintle with a surface area sized to generate a spring-opposing force to open a valve chamber entrance when an exhaust pressure differential exceeds a first threshold to allow exhaust gas to flow toward an intake and to close a valve chamber exit spaced from the chamber entrance to block exhaust gas flowing to the intake when the pressure differential exceeds a second threshold. The valve operates to limit or block external EGR flow at low load such as during starting and idle as well as at wide-open throttle while metering EGR flow for mid-to-high loads.
摘要翻译： 用于控制多缸内燃机的系统和方法包括机械操作的废气再循环阀，其具有弹簧偏置枢栓，其表面积的尺寸设计成当排气压力差超过时产生弹簧相反的力以打开阀室入口 允许废气朝向进气口流动并且关闭与腔室入口间隔开的阀室出口的第一阈值，以阻止当压差超过第二阈值时流入进气口的排气。 该阀用于限制或阻止低负载时的外部EGR流量，例如在起动和空转期间以及在宽敞的节流阀处，同时计量中至高负载的EGR流量。
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