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公开(公告)号：US09261057B2
公开(公告)日：2016-02-16
申请号：US13670675
申请日：2012-11-07
CPC分类号： F02M33/04 , F02D29/02 , F02D41/004 , F02M25/0809 , F02M25/0836 , F02M25/0854 , F02M25/089
摘要： Methods and systems are provided for purging a multi-port canister into an engine intake. Air is circulated through the canister and a resulting purge air is directed to an intake passage upstream of a throttle in engine configured with a throttle body. An amount of fresh intake air received at the intake passage is corresponding decreased.
摘要翻译： 提供的方法和系统用于将多端口罐排入发动机进气口。 空气通过罐循环，并且所产生的吹扫空气被引导到配置有节气门体的发动机中的节气门上游的进气通道。 在进气通道处接收的新鲜进气量相应减少。
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公开(公告)号：US20150021407A1
公开(公告)日：2015-01-22
申请号：US13944762
申请日：2013-07-17
CPC分类号： B60K15/03006 , B01D53/04 , B60K15/04 , F02M25/08 , F02M25/0854
摘要： A vapor storage device is provided. The vapor storage device includes a diffuser plate positioned on an axis of an inlet port and comprising one or more openings extending through the plate from a leading edge to a trailing edge and a dome coupled to the inlet port of the device and the diffuser plate, where the dome includes side walls spaced away from the diffuser plate.
摘要翻译： 提供蒸汽存储装置。 蒸气存储装置包括位于入口端口的轴线上的扩散板，包括从前缘到后缘延伸穿过板的一个或多个开口和连接到装置的入口端口和扩散板的圆顶， 其中圆顶包括与扩散板间隔开的侧壁。
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公开(公告)号：US10221784B2
公开(公告)日：2019-03-05
申请号：US15791856
申请日：2017-10-24
摘要： Methods and systems are provided for improving the efficiency of canister purge completion. Based on engine operating conditions, a canister is purged to a compressor inlet or a throttle outlet. During purging conditions, as canister loads change, a purge flow through the canister is varied so that a fixed preselected portion of total engine fueling is delivered as fuel vapors.
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公开(公告)号：US09797322B2
公开(公告)日：2017-10-24
申请号：US14252665
申请日：2014-04-14
CPC分类号： F02D41/004 , F02B37/16 , F02D41/0002 , F02D41/0042 , F02D2009/024 , F02D2250/41 , F02M25/0836 , F02M25/089 , F02M35/10157 , F02M35/10222 , Y02T10/144
摘要： Methods and systems are provided for improving the efficiency of canister purge completion. Based on engine operating conditions, a canister is purged to a compressor inlet or a throttle outlet. During purging conditions, as canister loads change, a purge flow through the canister is varied so that a fixed preselected portion of total engine fueling is delivered as fuel vapors.
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公开(公告)号：US09518539B2
公开(公告)日：2016-12-13
申请号：US14275453
申请日：2014-05-12
IPC分类号： F02M25/08
CPC分类号： F02M25/089 , F02M25/08 , F02M2025/0881
摘要： A method, comprising: purging fuel vapors from a fuel vapor canister and/or a fuel vapor bleed element to an engine intake with air routed through a transmission bellhousing. In this way, purge air may be warmed by heat generated in the transmission bellhousing during engine operation, thereby increasing desorption efficiency and reducing bleed emissions. Further, purge air may be pressurized in the transmission bellhousing to allow purging operations irrespective of intake manifold vacuum.
摘要翻译： 一种方法，包括：将燃料蒸汽从燃料蒸汽罐和/或燃料蒸汽排出元件吹送到发动机进气口，空气通过传输装置引导。 以这种方式，在发动机运转期间，吹扫空气可以通过传输装置中产生的热量加热，从而增加解吸效率和减少排放。 而且，无论进气歧管真空如何，吹扫空气都可以在传送装置中加压以允许吹扫操作。
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公开(公告)号：US20140123961A1
公开(公告)日：2014-05-08
申请号：US13670675
申请日：2012-11-07
IPC分类号： F02M33/04
CPC分类号： F02M33/04 , F02D29/02 , F02D41/004 , F02M25/0809 , F02M25/0836 , F02M25/0854 , F02M25/089
摘要： Methods and systems are provided for purging a multi-port canister into an engine intake. Air is circulated through the canister and a resulting purge air is directed to an intake passage upstream of a throttle in engine configured with a throttle body. An amount of fresh intake air received at the intake passage is corresponding decreased.
摘要翻译： 提供的方法和系统用于将多端口罐排入发动机进气口。 空气通过罐循环，并且所产生的吹扫空气被引导到配置有节气门体的发动机中的节气门上游的进气通道。 在进气通道处接收的新鲜进气量相应减少。
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公开(公告)号：US20170226967A1
公开(公告)日：2017-08-10
申请号：US15016061
申请日：2016-02-04
IPC分类号： F02M25/08
CPC分类号： F02M25/0818 , B60K15/035 , B60K15/03504 , B60K2015/03217 , B60K2015/03514 , B60K2015/03566 , B60Y2400/306
摘要： Methods and systems are provided for conducting an engine off natural vacuum test in a vehicle in order to indicate the presence or absence of undesired evaporative emissions. In one example, a vehicle fuel system and evaporative emissions system are sealed from atmosphere, and responsive to a pressure increase below an expected threshold, the fuel system and evaporative emissions system are actively pressurized via circulating hot engine coolant to a heater core and blowing hot air through the vehicle cabin to the fuel system via a three way ventilation valve in the rear of the vehicle. In this way, false failures of EONV test procedures due to environmental factors and vehicle operator drive habits may be reduced, and unnecessary engine service may be avoided.
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公开(公告)号：US09359966B2
公开(公告)日：2016-06-07
申请号：US14581529
申请日：2014-12-23
CPC分类号： F02D41/004 , F02D19/0621 , F02D41/003 , F02D41/0032 , F02M25/0836 , F02M25/0854 , F02M25/0872 , F02M25/089
摘要： A method for operating a fuel system is disclosed. The method includes sequentially purging fuel vapors from each of a plurality of regions of a canister. Purging a region includes opening an air inlet valve associated with that region and maintaining air inlet valves associated with each other region closed to direct fuel vapors to at least one purge outlet.
摘要翻译： 公开了一种操作燃料系统的方法。 该方法包括从罐的多个区域中的每一个顺序地清除燃料蒸汽。 吹扫区域包括打开与该区域相关联的进气阀，并且保持与彼此相邻的区域相关联的进气阀，以将燃料蒸气引导至至少一个吹扫出口。
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公开(公告)号：US20150322901A1
公开(公告)日：2015-11-12
申请号：US14275453
申请日：2014-05-12
IPC分类号： F02M25/08
CPC分类号： F02M25/089 , F02M25/08 , F02M2025/0881
摘要： A method, comprising: purging fuel vapors from a fuel vapor canister and/or a fuel vapor bleed element to an engine intake with air routed through a transmission bellhousing. In this way, purge air may be warmed by heat generated in the transmission bellhousing during engine operation, thereby increasing desorption efficiency and reducing bleed emissions. Further, purge air may be pressurized in the transmission bellhousing to allow purging operations irrespective of intake manifold vacuum.
摘要翻译： 一种方法，包括：将燃料蒸汽从燃料蒸汽罐和/或燃料蒸汽排出元件吹送到发动机进气口，空气通过传输装置引导。 以这种方式，在发动机运转期间，吹扫空气可以通过传输装置中产生的热量加热，从而增加解吸效率和减少排放。 而且，无论进气歧管真空如何，吹扫空气都可以在传送装置中加压以允许吹扫操作。
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公开(公告)号：US10060393B2
公开(公告)日：2018-08-28
申请号：US13764624
申请日：2013-02-11
IPC分类号： F02M33/04 , F02M25/08 , F02M35/10 , F02D19/06 , F02D41/00 , F02D9/02 , F02M26/71 , F02M26/05 , F02M26/06
CPC分类号： F02M25/0836 , F02D9/02 , F02D19/0621 , F02D41/003 , F02D41/0032 , F02D41/0037 , F02D41/004 , F02D41/0042 , F02D41/0045 , F02D41/005 , F02D2009/0213 , F02M25/08 , F02M26/05 , F02M26/06 , F02M26/71 , F02M35/10222
摘要： A purge valve and a fuel vapor management system for use with an engine emission control system are disclosed. The purge valve may include a first inlet for receiving a first flow of air from an air cleaner, a second inlet for receiving a second flow of purge vapors from an evaporative canister, and an outlet directing a controlled mixture of the first and second flows to an engine, upstream of an intake throttle. Relative amounts of the first flow and second flow may be selectively controlled by varying a position of the valve.
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