专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5073753A Hydrocarbon flame ionization detector 失效
标题翻译：油烟气离子检测器
公开(公告)号：US5073753A
公开(公告)日：1991-12-17
申请号：US460869
申请日：1990-02-01
申请人： Nicholas Collings , Steven Dinsdale , Jonathan Willey
发明人： Nicholas Collings , Steven Dinsdale , Jonathan Willey
IPC分类号： G01N27/62
CPC分类号： G01N27/626
摘要： A flame ionization detector comprises a housing forming a flame chamber for burning a mixture of hydrogen, oxidant and a sample gas. The flame chamber includes: a nozzle in which the sample gas and hydrogen are intimately mixed prior to injection, an igniter for igniting the gas emitted from the nozzle, inlets for hydrogen and oxidant, and an exhaust outlet through which the burnt gases are removed. A collector electrode is electrically insulated from the housing of the flame chamber. The nozzle and flame chamber housing are electrically grounded, and the collector electrode is maintained at a predetermined potential relative to ground. A pre-chamber is disposed adjacent to the flame chamber to provide a substantially constant pressure input of the sample gas to the nozzle.
摘要翻译： PCT No.PCT / GB88 / 00618 Sec。 371日期1990年2月1日 102（e）1990年2月1日PCT PCT。1988年7月28日PCT公布。第WO89 / 01149号公报日期：1989年2月9日。火焰离子化检测器包括形成用于燃烧氢气，氧化剂和样品气体的混合物的火焰室的壳体。火焰室包括：喷嘴，其中样品气体和氢气在注射之前紧密混合，喷嘴点燃点火器，用于点燃从喷嘴排出的气体，用于氢气和氧化剂的入口，以及排出出口，通过该排气口排出燃烧气体。集电极与火焰室的壳体电绝缘。喷嘴和火焰室壳体电接地，并且集电极相对于地保持在预定电位。预燃室邻近火焰室设置，以提供样品气体对喷嘴的基本恒定的压力输入。

2. 发明授权

US5425233A Operation of an internal combustion engine 失效
标题翻译：内燃机的运行
公开(公告)号：US5425233A
公开(公告)日：1995-06-20
申请号：US162210
申请日：1993-12-10
申请人： Thomas T. Ma , Nicholas Collings
发明人： Thomas T. Ma , Nicholas Collings
IPC分类号： F01N3/20 , F01N3/22 , F01N3/28 , F01N13/02 , F02D41/14
CPC分类号： F01N3/222 , F01N13/0097 , F01N3/204 , F01N3/22 , F01N3/2882 , F02D41/1454 , Y02T10/26
摘要： A method is described for reducing the total emissions during cold starts from an engine burning a hydrocarbon fuel and having an afterburner arranged upstream of a catalytic converter. The method comprises the steps of:(i) adding an excess of fuel to the engine combustible charge and adding air to the engine exhaust gases immediately after the engine has first fired to assure the presence in the exhaust/air mixture of sufficient concentrations of hydrogen and oxygen to permit the resulting exhaust/air mixture to be ignitable and to burn with a steady flame in the afterburner while the latter is at a temperature close to the ambient temperature, and(ii) igniting the exhaust/air mixture in the afterburner immediately after the engine has first fired.In the preferred embodiment of the invention, the excess fuel and/or the additional air are regulated after ignition has occurred in the afterburner to maintain a steady flame in the afterburner until at least part of the matrix of the catalytic converter has reached its light off temperature.
摘要翻译： PCT No.PCT / GB92 / 01035 Sec。 371日期：1993年12月10日 102（e）日期1993年12月10日PCT Filed 1991年6月10日PCT Pub。第WO92 / 22734号公报日期为1992年12月23日。描述了一种用于在发动机燃烧碳氢燃料的发动机的冷启动期间减少总排放并且具有布置在催化转化器上游的加力燃烧器的方法。该方法包括以下步骤：（i）在发动机首次燃烧之后立即向发动机可燃燃料添加多余的燃料并向发动机废气中添加空气，以确保排气/空气混合物中存在足够浓度的氢气和氧气，使得所产生的排气/空气混合物可点燃并在后燃器中以稳定的火焰燃烧，同时后者处于接近环境温度的温度，和（ii）立即点燃加力燃烧器中的排气/空气混合物发动机先发射后。在本发明的优选实施例中，在加力燃烧器中发生点火之后调节过量燃料和/或附加空气，以在后燃器中保持稳定的火焰，直到催化转化器的基体的至少部分已经达到其光照温度。

3. 发明授权

US06828794B2 Electrostatic particle measurement 有权
公开(公告)号：US06828794B2
公开(公告)日：2004-12-07
申请号：US10280176
申请日：2002-10-24
申请人： Kingsley St John Reavell , Nicholas Collings
发明人： Kingsley St John Reavell , Nicholas Collings
IPC分类号： G01N2766
CPC分类号： G01N15/0266 , B03C3/017 , B03C3/06 , B03C3/41 , B03C3/49 , B03C2201/08
摘要： An electrostatic instrument for measuring particle concentrations and possibly sizes in aerosols, such as an Electrostatic Low Pressure Impactor or Differential Mobility Analyser suffers from errors which limit the useful response bandwidth of the device. The invention minimises or eliminates these transient errors which are caused by changing particle concentrations in the aerosol. A system may be added to an otherwise conventional instrument to compensate for the transient effects based on a model of the charge production mechanism. Alternatively, a screening electrode placed over the sense electrodes in the instrument, and held at controlled electrical potential difference, is added to the instrument to eliminate the effect. A third embodiment adds compensating electrodes which provide a direct measurement of the transient effect which can be subtracted from the signal.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式