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1. 发明授权

US5063736A Particulate filter trap load regeneration system 失效
标题翻译：颗粒过滤器负载再生系统
公开(公告)号：US5063736A
公开(公告)日：1991-11-12
申请号：US388675
申请日：1989-08-02
申请人： Walter J. Hough , Paul R. Miller
发明人： Walter J. Hough , Paul R. Miller
IPC分类号： F01N3/02 , F01N1/08 , F01N3/023 , F01N3/025 , F01N3/032 , F01N3/033 , F01N9/00 , F02D41/02 , F02D41/38
CPC分类号： F01N3/023 , F01N1/084 , F01N3/025 , F01N3/032 , F01N3/0335 , F01N9/002 , F02D41/029 , F02D41/38 , F01N2230/02 , F01N2330/06 , F02D2200/0812 , Y02T10/47 , Y10S55/30
摘要： A particulate filter trap regeneration system and control mechanism is disclosed including a downstream vent tube section across which a pressure signal is derived as an analog of the exhaust gas stream velocity flowing through the particulate trap. A novel particulate loading parameter formula is disclosed by which the maximum acceptable pressure drop across a loaded particulate trap may be calculated and related to exhaust gas flow through the trap in order to determine when particulate trap regeneration should commence. In one embodiment, a vent tube equipped with a venturi throat for increasing the accuracy of the pressure signal indicative of exhaust gas stream velocity is disclosed along with representative dimensional parameters.

2. 发明授权

US4165763A Valve construction 失效
标题翻译：阀门结构
公开(公告)号：US4165763A
公开(公告)日：1979-08-28
申请号：US803431
申请日：1977-06-06
申请人： Walter J. Hough
发明人： Walter J. Hough
IPC分类号： F16K11/085
CPC分类号： F16K11/085 , Y10T137/86823 , Y10T137/86871 , Y10T137/86879
摘要： A valve construction is provided for use in controlling fluid flow to a plurality of intake passageways. The valve construction is particularly suitable for use in an internal combustion engine to control the flow of exhaust gases to a turbocharger, the latter having a plurality of intake passageways communicating with the turbine section thereof. The valve construction includes a housing having an inlet for the engine exhaust gases and an outlet communicating with the intake passageways. Disposed within the housing and intermediate the inlet and outlet thereof is an adjustable valve piece which is adapted to be moved to selected positions of adjustment relative to said housing. When the valve piece is in a first selected position, exhaust gases flow through the housing to a first predetermined number of intake passageways. When the valve piece is adjusted to a second selected position, exhaust gases flow through the housing to a second predetermined number of intake passageways. The first predetermined number is of greater magnitude than the second predetermined number.
摘要翻译：提供阀结构用于控制流向多个进气通道的流体。阀结构特别适用于内燃机，以控制排气到涡轮增压器的流动，后者具有与其涡轮段连通的多个进气通道。阀结构包括具有用于发动机废气的入口和与进气通道连通的出口的壳体。设置在壳体内并在其入口和出口之间的中心是可调节的阀片，其适于相对于所述壳体移动到选定的调节位置。当阀片处于第一选定位置时，废气流过壳体至第一预定数量的进气通道。当阀片被调节到第二选定位置时，废气流过壳体到第二预定数量的进气通道。第一预定数量比第二预定数量大。

3. 发明授权

US06474319B1 Filter system for the removal of hydrocarbon deposits from a cooled exhaust gas recirculating engine 有权
标题翻译：用于从冷却的废气再循环发动机中去除烃沉积物的过滤系统
公开(公告)号：US06474319B1
公开(公告)日：2002-11-05
申请号：US09690495
申请日：2000-10-17
申请人： Walter J. Hough , Cheng G. Li , Ying Zhou
发明人： Walter J. Hough , Cheng G. Li , Ying Zhou
IPC分类号： F02M2507
CPC分类号： F02M26/35 , F02M26/23
摘要： The present invention relates to a method and apparatus for removing hydrocarbons from the exhaust stream of a diesel engine prior to cooling the exhaust for recycling through the intake manifold. A filter is used to remove hydrocarbon combustion products, including particulate matter, from the exhaust at a point after the exhaust gasses leave the exhaust manifold and before the exhaust gasses enter an exhaust gas cooler. Reduction of the hydrocarbon levels in the exhaust gasses slows or prevents buildup of hydrocarbon residue downstream of the filter, such as in the exhaust gas cooler, reducing the frequency of the requirement for cleaning or replacing the filter and effectively extending the life of the exhaust system.
摘要翻译：本发明涉及一种用于在冷却排气以通过进气歧管再循环之前从柴油发动机的排气流中除去碳氢化合物的方法和装置。过滤器用于在废气离开排气歧管之后并且在废气进入排气冷却器之前的一个点处从排气中除去烃燃烧产物，包括颗粒物质。减少废气中的烃含量减慢或防止过滤器下游的烃残余物积聚，例如在排气冷却器中，降低清洗或更换过滤器的要求的频率，并有效延长排气系统的使用寿命。

4. 发明授权

US4993452A Low pressure check valve 失效
标题翻译：低压止回阀
公开(公告)号：US4993452A
公开(公告)日：1991-02-19
申请号：US455260
申请日：1989-12-22
申请人： Walter J. Hough
发明人： Walter J. Hough
IPC分类号： F01N3/025 , F16K15/14
CPC分类号： F01N3/025 , F16K15/147 , Y10T137/7857 , Y10T137/7883 , Y10T137/7886
摘要： An exhaust gas aftertreatment system having an air supply system is disclosed and includes an air feeding pump for selectively creating a flow of air through a flow passage which directs the flow of air to a regeneration system. A check valve is provided including a valve element having a circular base portion surrounding and supported by the flow passage, a flexing portion extending from the circular base portion and converging to form a diametrically extending tip, and a diametrical slit formed in the tip. Also, a support structure is positioned to extend into the valve element to a position adjacent the tip for supporting the flexing portion such that the valve element permits the flow of air from the air feeding pump in one direction and prevents the flow of exhaust gas in an opposite direction with the support structure preventing the valve element from collapsing when the air feeding pump is inoperable.
摘要翻译：公开了一种具有空气供应系统的排气后处理系统，并且包括空气供给泵，用于选择性地通过将空气流引导到再生系统的流动通道产生空气流。提供了一种止回阀，包括：阀元件，其具有围绕流动通道并由所述流动通道支撑的圆形基部;弯曲部分，其从所述圆形基部延伸并会聚以形成径向延伸的尖端;以及在所述尖端中形成的直径狭缝。此外，支撑结构被定位成延伸到阀元件到与尖端相邻的位置以支撑弯曲部分，使得阀元件允许来自空气供给泵的空气在一个方向上流动并且防止排气的流动与支撑结构相反的方向防止当空气供给泵不可操作时阀元件塌陷。

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