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公开(公告)号:WO2015155359A9
公开(公告)日:2015-12-23
申请号:PCT/EP2015057910
申请日:2015-04-10
申请人: REPSOL SA , AVL LIST GMBH
CPC分类号: F02M21/0212 , F02D13/0261 , F02D19/024 , F02D19/029 , F02D41/0027 , F02D41/0087 , F02D41/126 , F02D41/401 , F02D2041/389 , F02D2200/0602 , F02D2200/0606 , F02M21/0245 , F02M21/0275 , F02M21/0287 , F02P5/15 , Y02T10/18 , Y02T10/32 , Y02T10/44 , Y02T10/46
摘要: The invention relates to a liquefied petroleum gas direct injection engine (100) comprising at least one cylinder comprising a combustion chamber (1) having a spark plug (2), one or more intake valve or valves (4) and one or more exhaust valve or valves (5). The LPG engine (100) further comprises at least one injector (6) for injecting liquefied petroleum gas in liquid state directly into the combustion chamber, the LPG being injected at a pre-established pressure value; a high pressure pump (9) for feeding pressurized liquefied petroleum gas to at least one injector (6); and an electronic control unit (13) configured to operate the at least one injector (6) for injecting the LPG during a specific injection time period or periods such that a predefined target mass of liquefied petroleum gas is injected, and between 360 º BTDC and 60 º BTDC of the engine cycle. The invention also refers to a control method of a liquefied petroleum gas direct injection engine (100).
摘要翻译: 本发明涉及一种液化石油气直接喷射发动机(100),其包括至少一个气缸,其包括具有火花塞(2)的燃烧室(1),一个或多个进气阀或阀(4)和一个或多个排气阀 或阀(5)。 液化石油气发动机(100)还包括至少一个用于将处于液态的液化石油气直接喷入燃烧室的喷射器(6),所述LPG以预定的压力值被注入; 用于将加压的液化石油气供给到至少一个喷射器(6)的高压泵(9); 以及电子控制单元(13),其被配置为操作所述至少一个喷射器(6),用于在特定喷射时间段期间喷射LPG,或者使得注入液化石油气的预定目标质量的时间段以及360°BTDC和 发动机循环的60ºBTDC。 本发明还涉及一种液化石油气直喷发动机(100)的控制方法。