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1. 发明申请

WO2006130526A3 GRADIENT DENSITY DEPTH FILTRATION SYSTEM 审中-公开
标题翻译：梯度深度过滤系统
公开(公告)号：WO2006130526A3
公开(公告)日：2007-10-25
申请号：PCT/US2006020662
申请日：2006-05-30
申请人： FLEETGUARD INC , DICKERSON DAVID P , MONNIN MICHAEL J , RICKLE GARY L , BORER MARK A , STUART JAMES O , VELU YOGESHWAR K , HABERKAMP WILLIAM C , GRABER JULIE ANNE
发明人： DICKERSON DAVID P , MONNIN MICHAEL J , RICKLE GARY L , BORER MARK A , STUART JAMES O , VELU YOGESHWAR K , HABERKAMP WILLIAM C , GRABER JULIE ANNE
IPC分类号： B01D39/00
CPC分类号： B01D39/1623 , B01D2201/188
摘要： An apparatus, system and method to provide increasingly fine gradient density depth filtration of a fluid (114). The apparatus may include a melt-blown filtration assembly (112) having varying densities of melt-blown microfilaments (204, 206, 208) fabricated from acetal or other substantially dimensionally stable thermoplastic. The apparatus thus facilitates efficient filtration by providing a gradient density depth filtration system (112) compatible with various fuels, coolants, and other forms of a fluid.
摘要翻译：提供流体（114）越来越细的梯度密度深度过滤的装置，系统和方法。该设备可以包括具有由缩醛或其它基本上尺寸稳定的热塑性塑料制成的熔喷微丝（204,206,208）不同密度的熔喷过滤组件（112）。因此，该装置通过提供与各种燃料，冷却剂和其它形式的流体相容的梯度密度深度过滤系统（112）来促进有效的过滤。

2. 发明申请

WO2008067364A3 APPARATUS, SYSTEM, AND METHOD FOR MAXIMIZING ULTRAFINE MELTBLOWN FIBER ATTENUATION 审中-公开
标题翻译：用于最大化超细麻纤维衰减的装置，系统和方法
公开(公告)号：WO2008067364A3
公开(公告)日：2008-07-24
申请号：PCT/US2007085738
申请日：2007-11-28
申请人： CUMMINS FILTRATION IP INC , HERMAN PETER K , STUART JAMES O , VELU YOGESHWAR K
发明人： HERMAN PETER K , STUART JAMES O , VELU YOGESHWAR K
IPC分类号： D01D5/00 , D01D10/00
CPC分类号： D01D4/025
摘要： An apparatus, system and method to maximize ultrafine meltblown fiber attenuation. The nozzle apparatus (108) includes a polymer streaming channel (400), at least one gas delivery channel (202), a restricted throat area (406), and a bounded expansion area (306). In some embodiments, the nozzle (108) comprises a two-dimensional converging-diverging Laval nozzle geometry. The gas delivery channels (202) may provide the gas under a pressure exceeding critical pressure, such that the gas achieves supersonic speeds at the restricted throat area (406). The bounded expansion area (306) may stabilize such supersonic speeds, thus maximizing ultrafine meltblown fiber attenuation while minimizing the formation of fly and other defects.
摘要翻译：一种使超细熔喷纤维衰减最大化的装置，系统和方法。喷嘴装置（108）包括聚合物流动通道（400），至少一个气体输送通道（202），受限制的喉部区域（406）和有界扩张区域（306）。在一些实施例中，喷嘴（108）包括二维会聚 - 发散拉瓦尔喷嘴几何形状。气体输送通道（202）可以在超过临界压力的压力下提供气体，使得气体在受限制的喉部区域（406）实现超音速。有界展开区域（306）可以稳定这种超音速，从而使超细熔喷纤维的衰减最大化，同时使蝇和其他缺陷的形成最小化。

3. 发明申请

WO2010077718A2 FILTERS FOR SELECTIVE REMOVAL OF LARGE PARTICLES FROM PARTICLE SLURRIES 审中-公开
标题翻译：从颗粒物中选择性去除大颗粒的过滤器
公开(公告)号：WO2010077718A2
公开(公告)日：2010-07-08
申请号：PCT/US2009067272
申请日：2009-12-09
申请人： DU PONT , VELU YOGESHWAR K , COMPTON TIMOTHY FREDERICK
发明人： VELU YOGESHWAR K , COMPTON TIMOTHY FREDERICK
IPC分类号： B01D37/00 , B01D29/46
CPC分类号： B01D39/1623 , B01D2239/025
摘要： A method for removing the high particle size tail of the particle size distribution of a slurry while leaving desirable smaller particles in the slurry. The method involves providing a filter media having a first and second side and being formed of at least one sheet of a fabric that has at least one layer comprising polymeric fibers having a mean number average fiber diameter of less than 1000 nm. A slurry stream is then supplied to one face of the fabric. The stream has a multiplicity of particle sizes comprising a first set of particles of maximum dimension less than 0.1 microns and a second set of particles of maximum individual dimension of greater than 0.45 microns to the first side of said filter media. The slurry stream is passed through said filter media to the second side thereof whereby at least a portion of the larger particles in the slurry are retained on the first side of said media. The filtration efficiency of the fabric towards the first set of particles is less than 0.05 and the filtration efficiency towards the second set of particles is greater than 0.8.
摘要翻译：一种用于除去浆料的粒度分布的高粒度尾部的方法，同时在浆料中留下期望的较小颗粒。该方法包括提供具有第一和第二侧的过滤介质，并且由至少一层织物形成，所述至少一层织物具有至少一层包含平均纤维直径小于1000nm的聚合物纤维。然后将浆料流供应到织物的一个面。流具有多个粒度，其包括最大尺寸小于0.1微米的第一组粒子和大于0.45微米的最大个体尺寸的第二组粒子至所述过滤介质的第一侧。浆料流通过所述过滤介质到其第二侧，其中浆料中的较大颗粒的至少一部分保留在所述介质的第一侧上。织物朝向第一组颗粒的过滤效率小于0.05，并且朝向第二组颗粒的过滤效率大于0.8。

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