公开(公告)号：US06511052B1

公开(公告)日：2003-01-28

申请号：US09369803

申请日：1999-08-06

申请人： Mark Christopher Tonkin ,  Mark Andrew Young ,  Mark Elden Schuchardt

发明人： Mark Christopher Tonkin ,  Mark Andrew Young ,  Mark Elden Schuchardt

IPC分类号： B01D4700

CPC分类号： H01M8/04119 ,  F02M25/0224 ,  F02M25/028 ,  H01M8/04156 ,  H01M2300/0082 ,  Y02T10/121 ,  Y02T10/16

摘要： Water vapor is introduced into an inlet air stream (16) of an engine (12), for example, by a pervaporation process through a non-porous hydrophilic membrane (18). A water reservoir (20), which can contain contaminated water, provides a vapor pressure gradient across the hydrophilic membrane (18) into the inlet air stream (16), while the rate of delivery of the water vapor to a cylinder (38-40) is self-regulated by the rate of flow of air across the membrane. The hydrophilic membrane (18) therefore also filters the water from the water reservoir (20) to an extent that pure water vapor is provided to the air inlet stream (16). Delivery of water vapor can nevertheless be controlled using a hood (26) that slides over the hydrophilic membrane to limit its exposed surface area. Alternatively, water vapor is introduced into one or more of the gas streams of a fuel cell by separating the gas stream from the wet exhaust gas stream by a hydrophilic membrane such that moisture passes across the membrane to moisten the gas stream and thereby prevent drying out of the proton exchange membrane.

公开(公告)号：US07611792B2

公开(公告)日：2009-11-03

申请号：US10253246

申请日：2002-09-24

申请人： Mark Christopher Tonkin ,  Mark Andrew Young ,  Mark Elden Schuchardt

发明人： Mark Christopher Tonkin ,  Mark Andrew Young ,  Mark Elden Schuchardt

IPC分类号： H01M8/04 ,  B01D47/00

CPC分类号： H01M8/04119 ,  F02M25/0224 ,  F02M25/028 ,  H01M8/04156 ,  H01M2300/0082 ,  Y02T10/121 ,  Y02T10/16

摘要： Water vapor is introduced into an inlet air stream (16) of an engine (12), for example, by a pervaporation process through a non-porous hydrophilic membrane (18). A water reservoir (20), which can contain contaminated water, provides a vapor pressure gradient across the hydrophilic membrane (18) into the inlet air stream (16), while the rate of delivery of the water vapor to a cylinder (38-40) is self-regulated by the rate of flow of air across the membrane. The hydrophilic membrane (18) therefore also filters the water from the water reservoir (20) to an extent that pure water vapor is provided to the air inlet stream (16). Delivery of water vapor can nevertheless be controlled using a hood (26) that slides over the hydrophilic membrane to limit its exposed surface area. Alternatively, water vapor is introduced into one or more of the gas streams of a fuel cell by separating the gas stream from the wet exhaust gas stream by a hydrophilic membrane such that moisture passes across the membrane to moisten the gas stream and thereby prevent drying out of the proton exchange membrane.

摘要翻译： 例如，通过非渗透亲水膜（18）的渗透蒸发过程将水蒸气引入发动机（12）的入口空气流（16）。 可以含有污染水的储水器（20）提供穿过亲水膜（18）进入入口空气流（16）的蒸汽压力梯度，同时将水蒸气输送到气缸（38-40 ）通过隔膜的空气流量自行调节。 因此，亲水膜（18）也将来自储水器（20）的水过滤到向进气流（16）提供纯水蒸气的程度。 可以使用在亲水膜上滑动以限制其暴露的表面积的罩（26）来控制水蒸气的输送。 或者，通过用亲水膜分离来自湿排气流的气流，将水蒸气引入燃料电池的一个或多个气流，使得水分通过膜以润湿气流，从而防止干燥 的质子交换膜。