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1.发明公开
公开(公告)号：EP1269003A1
公开(公告)日：2003-01-02
申请号：EP01921070.7
申请日：2001-04-04
发明人： DOUVILLE, Bradley, D. , NOBLE, Stephen, Duncan , BAKER, S., Michael , TRAN, Minh , TOUCHETTE, Alain, M., J.
CPC分类号： F02D19/10 , F02D19/0678 , F02D19/0684 , F02D19/0689 , F02D19/0694 , F02M21/0251 , F02M21/0263 , F02M43/00 , F02M43/04 , F02M47/046 , F02M61/16 , Y02T10/32 , Y02T10/36
摘要： A dynamic fluid sealing system for a fuel injection valve (180) employs sealing-fluid to separate a gaseous fuel and a second fluid in the fuel injection valve, thereby preventing leakage of the gaseous fuel into the second fluid. A pressure-balancing system (100), which includes a pressure-balancing device (110, 111), reduces the pressure differential between the sealing-fluid and the gaseous fuel used in the injection valve. At the same time, the pressure balancing system dynamically balances the sealing-fluid pressure such that the sealing-fluid pressure is equal to or slightly greater than the pressure of the gaseous fuel within the injection valve. The pressure differential between the gaseous fuel and the sealing-fluid may be maintained throughout the operating range of engine speeds, engine loads, and fuel cut-off conditions so as to prevent leakage of compressible gaseous fuel into the second fluid. The reduced pressure differential between the gaseous fuel and the sealing-fluid also reduces leakage of sealing-fluid into the gaseous fuel.
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公开(公告)号：EP1030971B1
公开(公告)日：2004-07-14
申请号：EP98954086.9
申请日：1998-11-06
CPC分类号： F04B25/02 , F04B15/08 , Y10S417/901
摘要： This invention relates to a medium and high pressure liquid natural gas fuel system for internal combustion engines and for other cryogenic systems. A cryogenic pump comprising: (a) a vessel for containing compressed gas and liquid; (b) a first chamber in said vessel with an inlet therein for receiving gas and liquid; (c) a second chamber communicating with said first chamber for receiving and dispelling gas and liquid; (d) a third chamber communicating with said second chamber for receiving and dispelling gas and liquid; (e) a reciprocating means separating said first, second and third chambers from one another and for drawing and compressing gas and liquid in any one of the first, second and third chambers; (f) one-way inlet means for enabling gas and liquid to pass into the first chamber; (g) one-way means between said first and second chambers for enabling gas and liquid to pass from said first chamber to said second chamber; (h) one-way means for enabling gas and liquid to return from the second chamber to the first chamber; (i) one-way means between said second and third chambers for enabling gas and liquid to be passed from said second chamber to said third chamber; and (j) one-way means for enabling gas and liquid to be expelled from said third chamber to the exterior of the vessel. The invention also relates to a single action suction and double action discharge pump which can be readily removed from a confined space.
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公开(公告)号：EP1490624A1
公开(公告)日：2004-12-29
申请号：EP03709511.4
申请日：2003-04-02
CPC分类号： F17C6/00 , F17C1/00 , F17C2201/0109 , F17C2201/0166 , F17C2201/0171 , F17C2201/056 , F17C2203/0617 , F17C2205/0149 , F17C2205/035 , F17C2205/0352 , F17C2221/011 , F17C2221/012 , F17C2221/014 , F17C2221/017 , F17C2221/033 , F17C2221/035 , F17C2223/0161 , F17C2223/033 , F17C2227/0121 , F17C2227/0135 , F17C2227/0339 , F17C2227/04 , F17C2250/043 , F17C2250/0443 , F17C2250/0495 , F17C2250/0636 , F17C2250/0694 , F17C2250/075 , F17C2260/022 , F17C2260/044 , F17C2270/0168 , Y02E60/321
摘要： The storage tank for cryogenic liquids incorporates an ullage vessel that provides for an ullage space. The ullage vessel is in communication through an ullage line to a fill line that provides cryogen to a cryogen space. The junction where the ullage line and fill line meet is of a certain cross-sectional area. Downstream of the junction within the fill line, measured in reference to the direction of cryogen flow during a coruse of filling the cryogen space, is of a greater cross-sectional area than is the case at the junction. This creates a pressure reduction at the junction during a course of filling that causes a net flow of material from the ullage space over the course of filling. Once the cryogen tank is liquid full causing cryogen to be redirected down the ullage line, the smaller cross-sectional area of the ullage line compared to the fill line causes a reduction in flow of cryogen which is detected by the fill pump causing filling to stop providing the ullage space. A means of draining the ullage vessel prior to and during filling of the storage tank is provided.
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公开(公告)号：EP1030971A1
公开(公告)日：2000-08-30
申请号：EP98954086.9
申请日：1998-11-06
CPC分类号： F04B25/02 , F04B15/08 , Y10S417/901
摘要： This invention relates to a medium and high pressure liquid natural gas fuel system for internal combustion engines and for other cryogenic systems. A cryogenic pump comprising: (a) a vessel for containing compressed gas and liquid; (b) a first chamber in said vessel with an inlet therein for receiving gas and liquid; (c) a second chamber communicating with said first chamber for receiving and dispelling gas and liquid; (d) a third chamber communicating with said second chamber for receiving and dispelling gas and liquid; (e) a reciprocating means separating said first, second and third chambers from one another and for drawing and compressing gas and liquid in any one of the first, second and third chambers; (f) one-way inlet means for enabling gas and liquid to pass into the first chamber; (g) one-way means between said first and second chambers for enabling gas and liquid to pass from said first chamber to said second chamber; (h) one-way means for enabling gas and liquid to return from the second chamber to the first chamber; (i) one-way means between said second and third chambers for enabling gas and liquid to be passed from said second chamber to said third chamber; and (j) one-way means for enabling gas and liquid to be expelled from said third chamber to the exterior of the vessel. The invention also relates to a single action suction and double action discharge pump which can be readily removed from a confined space.
摘要翻译： 本发明涉及用于内燃机和其它低温系统的中压和高压液体天然气燃料系统。 一种低温泵，包括：（a）用于容纳压缩气体和液体的容器; （b）所述容器中的第一室，其中具有用于接收气体和液体的入口; （c）与所述第一室连通以接收和驱散气体和液体的第二室; （d）与所述第二室连通以接收和驱散气体和液体的第三室; （e）将所述第一，第二和第三腔室彼此分开并用于在第一，第二和第三腔室中的任何一个腔室中抽吸和压缩气体和液体的往复装置; （f）单向进口装置，用于使气体和液体进入第一腔室; （g）所述第一和第二室之间的单向装置，用于使气体和液体能够从所述第一室流到所述第二室; （h）使气体和液体从第二室返回第一室的单向装置; （i）所述第二和第三腔室之间的单向装置，用于使气体和液体能够从所述第二腔室流到所述第三腔室; 和（j）用于使气体和液体能够从所述第三腔室排出到所述容器外部的单向装置。 本发明还涉及可以容易地从有限空间移除的单作用吸力双作用排放泵。
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5.发明授权
公开(公告)号：EP1269003B1
公开(公告)日：2006-03-22
申请号：EP01921070.7
申请日：2001-04-04
发明人： DOUVILLE, Bradley, D. , NOBLE, Stephen, Duncan , BAKER, S., Michael , TRAN, Minh , TOUCHETTE, Alain, M., J.
CPC分类号： F02D19/10 , F02D19/0678 , F02D19/0684 , F02D19/0689 , F02D19/0694 , F02M21/0251 , F02M21/0263 , F02M43/00 , F02M43/04 , F02M47/046 , F02M61/16 , Y02T10/32 , Y02T10/36
摘要： A dynamic fluid sealing system for a fuel injection valve (180) employs sealing-fluid to separate a gaseous fuel and a second fluid in the fuel injection valve, thereby preventing leakage of the gaseous fuel into the second fluid. A pressure-balancing system (100), which includes a pressure-balancing device (110, 111), reduces the pressure differential between the sealing-fluid and the gaseous fuel used in the injection valve. At the same time, the pressure balancing system dynamically balances the sealing-fluid pressure such that the sealing-fluid pressure is equal to or slightly greater than the pressure of the gaseous fuel within the injection valve. The pressure differential between the gaseous fuel and the sealing-fluid may be maintained throughout the operating range of engine speeds, engine loads, and fuel cut-off conditions so as to prevent leakage of compressible gaseous fuel into the second fluid. The reduced pressure differential between the gaseous fuel and the sealing-fluid also reduces leakage of sealing-fluid into the gaseous fuel.
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公开(公告)号：EP1461524A1
公开(公告)日：2004-09-29
申请号：EP02803727.3
申请日：2002-11-27
发明人： BROOK, Thomas, Currie , BRENNAN, Daniel, James, Hubbert , LEBLANC, Valerie, Nadia , NOBLE, Stephen, Duncan
CPC分类号： F02M21/0245 , F02D19/022 , F02M21/0221 , F02M21/06 , Y02T10/32
摘要： This invention relates to an apparatus for pressurizing a fluid and delivering a gas comprising a pump, an accumulator and a heater such that the pump pressurizes a quantity fluid received from a fluid store and delivers that pressurized fluid to an accumulator. The accumulator then delivers a quantity of the pressurized fluid to a heater that, in turn, warms the fluid to a gas within a specified temperature and pressure range to be delivered to the end user as required. The invention further relates to a method of delivering a gas at a desired pressure and temperature wherein a quantity of fluid is received, pressurized and stored as a fluid in an accumulator storage vessel at a desired pressure. The fluid is then delivered from the accumulator to a heater where it is warmed and delivered to the end user as a gas at specified temperature and pressure.
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