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1. 发明公开

EP2912293A4 FUEL SYSTEM PROTECTION IN A MULTI-FUEL ENGINE 有权转让
标题翻译：燃油系统保护对于多燃料发动机
公开(公告)号：EP2912293A4
公开(公告)日：2016-07-27
申请号：EP13848907
申请日：2013-10-22
申请人： WESTPORT POWER INC , GM GLOBAL TECH OPERATIONS INC
发明人： DUNN MARK E , WU NING , ZHANG DEHONG , BZYMEK RAYMOND , MARRIOTT CRAIG , COWGILL JOSHUA , MOSCHEROSCH BEN
IPC分类号： F02D19/08 , F02D19/02 , F02D19/06 , F02D41/00 , F02D41/22 , F02D41/38 , F02M43/00
CPC分类号： F02D19/0689 , F02D19/024 , F02D19/0613 , F02D19/0642 , F02D19/0692 , F02D19/081 , F02D19/084 , F02D41/0025 , F02D41/0027 , F02D41/008 , F02D41/221 , F02D2041/389 , F02M43/00 , Y02T10/32 , Y02T10/36 , Y02T10/40
摘要： A method that protects a direct injection fuel injector in a multi-fuel engine comprises selectively operating the engine with at least one of a directly injected fuel introduced through the direct injection fuel injector and a second fuel. When fuelling the multi-fuel engine with the second fuel, a fuel system protection technique is selectively commanded when one or more adverse conditions, such as the direct injection fuel injector requiring cooling, is determined to exist. The fuel system protection technique comprises (a) suspending fuelling with the second fuel and injecting the directly injected fuel for a first predetermined number of engine cycles, and (b) switching back to fuelling the multi-fuel engine with the second fuel for a second predetermined number of engine cycles. The first and second predetermined number of engine cycles are selected to keep torque disturbances below a predetermined threshold value.

2. 发明公开

EP2861852A4 FUEL SYSTEM PROTECTION IN A MULTI-FUEL SYSTEM INTERNAL COMBUSTION ENGINE 有权转让
标题翻译：在EINEM VERBRENNUNGSMOTOR MIT EINEM系统中的KRAFTSTOFFSYSTEMSCHUTZ MEHREREN BRENNSTOFFEN
公开(公告)号：EP2861852A4
公开(公告)日：2016-03-09
申请号：EP13804568
申请日：2013-06-13
申请人： WESTPORT POWER INC , GM GLOBAL TECH OPERATIONS INC
发明人： BZYMEK RAYMOND , DUNN MARK E , WU NING , ZHANG DEHONG , MARRIOTT CRAIG , COWGILL JOSHUA , MOSCHEROSCH BEN
IPC分类号： F02D19/06 , F02D19/08 , F02D41/00 , F02D41/30
CPC分类号： F02D19/0626 , F02B17/005 , F02D19/061 , F02D19/0615 , F02D19/0623 , F02D19/0631 , F02D19/0647 , F02D19/0689 , F02D19/0692 , F02D19/081 , F02D19/10 , F02D41/0025 , F02D41/0027 , F02M43/00 , Y02T10/36
摘要： A technique for fuel system protection for an internal combustion engine includes introducing a directly injected fuel into a combustion chamber through a direct fuel injector, introducing a fumigated fuel upstream of an intake valve, selectively operating the internal combustion engine with at least one of the directly injected fuel and the fumigated fuel, determining a temperature of the direct fuel injector as a first function of engine operating parameters, and performing a temperature mitigation technique when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value.
摘要翻译：一种用于内燃机的燃料系统保护的技术包括将直接喷射的燃料通过直接燃料喷射器引入燃烧室，在进气门的上游引入熏蒸燃料，选择性地操作内燃机，其中至少一个直接喷射喷射燃料和熏蒸燃料，确定直接燃料喷射器的温度作为发动机工作参数的第一功能，并且当温度升高到高于第一预定值以使得温度保持在第二预定值以下时执行温度降低技术。

3. 发明公开

EP3071822A4 CONTROL SYSTEM FOR A FLEXIBLE FUEL INTERNAL COMBUSTION ENGINE 有权转让
标题翻译： STEUERUNGSSYSTEMFÜREINE BRENNKRAFTMASCHINE MITBRENNSTOFFFLEXIBILITÄT
公开(公告)号：EP3071822A4
公开(公告)日：2017-07-19
申请号：EP14864496
申请日：2014-11-06
申请人： WESTPORT POWER INC
发明人： BZYMEK RAYMOND , CHAMBERS BRIAN M , DUNN MARK E
IPC分类号： F02D41/30 , F02M43/00
CPC分类号： F02D41/0025 , F02D19/061 , F02D19/0644 , F02D19/0647 , F02D19/0689 , F02D19/0692 , F02D19/0694 , F02D19/08 , F02D19/081 , F02D41/0027 , F02D41/26 , F02D41/266 , F02D41/3094 , F02D41/40 , F02D2400/11 , Y02T10/36 , Y02T10/44
摘要： Abstract In previous control systems for engines that fuelled with a conventional fuel and an alternative fuel, a conventional fuel controller controlled fuelling for both fuels. This required extensive modifications to both the conventional fuel controller and an alternative fuel controller. A control system for an engine comprises a first control unit programmed to generate a first pulse width to actuate a first fuel injector to introduce a first fuel; a second control unit programmed to generate a second pulse width to actuate a second fuel injector to introduce a second fuel; and a communication line between the first and second control units. The first control unit determines a total fuel energy amount to be introduced by the first and second fuel injectors. The second control unit determines a first fraction of the total fuel energy amount to be from the first fuel and a second fraction of the total fuel energy amount to be from the second fuel.
摘要翻译：摘要在以前的以传统燃料和替代燃料为燃料的发动机控制系统中，传统的燃料控制器控制两种燃料的燃料供应。这需要对常规燃料控制器和替代燃料控制器进行大量修改。一种用于发动机的控制系统包括：第一控制单元，被编程为产生第一脉冲宽度以致动第一燃料喷射器以引入第一燃料; 第二控制单元，被编程为产生第二脉冲宽度以致动第二燃料喷射器以引入第二燃料; 以及第一和第二控制单元之间的通信线路。第一控制单元确定要由第一和第二燃料喷射器引入的总燃料能量量。第二控制单元将总燃料能量的第一部分确定为来自第一燃料，并将总燃料能量的第二部分确定为来自第二燃料。

4. 发明公开

EP2906799A4 FUEL SYSTEM PROTECTION IN A MULTI-FUEL INTERNAL COMBUSTION ENGINE 有权转让
标题翻译：燃油系统保护与多种燃料内燃机
公开(公告)号：EP2906799A4
公开(公告)日：2016-08-03
申请号：EP13845933
申请日：2013-10-08
申请人： WESTPORT POWER INC
发明人： DUNN MARK E , WU NING , ZHANG DEHONG , KARIMI-SHARIF HAMED , BZYMEK RAYMOND
IPC分类号： F02D19/08 , F02D19/06 , F02D41/00 , F02D41/30 , F02D41/38
CPC分类号： F02D41/3094 , F02D19/061 , F02D19/0623 , F02D19/0647 , F02D19/0689 , F02D19/0692 , F02D19/081 , F02D41/0025 , F02D41/0027 , F02D41/0087 , F02D41/38 , F02D2041/224 , F02D2041/389 , Y02T10/36
摘要： A method of protecting a direct injection fuel injector in a multi-fuel engine, the method includes selectively operating the multi-fuel engine with a directly injected fuel introduced through the direct injection fuel injector and a second fuel; when fuelling the multi-fuel engine with the second fuel, selectively commanding a fuel system protection technique when determining that the direct injection fuel injector requires cooling, an age of directly injected fuel is above a predetermined value, transmission status has changed, an engine shutdown event has occurred and a global positioning system signal indicates an engine shutdown event will occur; wherein the fuel system protection technique includes commanding that the directly injected fuel be a portion of total fuel consumed and reducing quantities of the second fuel that is injected so that total fuel consumed equals a desired amount of fuel measured on an energy basis.

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