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公开(公告)号：KR1020140057025A
公开(公告)日：2014-05-12
申请号：KR1020120123619
申请日：2012-11-02
CPC classification number: F02M39/00 , F02D19/022 , F02M21/0212 , F02M21/0239 , F02M21/0245 , F02M21/0275 , Y02T10/32
Abstract: The present invention relates to an LPG direct injecting system directly injecting LPG to a combustion chamber of an engine. According to an embodiment of the present invention, the LPG direct injecting system comprises an engine receiving fluid LPG in a combustion engine; an injector arranged to directly inject the LPG to the combustion chamber of the engine; a high pressure fuel pump supplying the high pressure LPG to the injector; a fuel tank in which the LPG supplied to the engine is stored; a regulator device which receives LPG from the fuel tank, stably adjusts the pressure of the received LPG, and transfers LPG with the predetermined pressure to the high pressure fuel pump; a fuel supplying line which connects the fuel tank, the regulator device, the high pressure fuel pump, and the injector in order so as to supply the LPG stored in the fuel tank to the engine; and a fuel return line returning, to the fuel tank, the LPG remaining after pumped in the high pressure fuel pump.
Abstract translation: 本发明涉及将LPG直接喷射到发动机的燃烧室的LPG直接喷射系统。 根据本发明的实施例，LPG直接喷射系统包括在内燃机中接收流体LPG的发动机; 喷射器，其布置成将LPG直接喷射到发动机的燃烧室; 向喷射器供应高压LPG的高压燃料泵; 储存供给发动机的液化石油气的燃料箱; 从燃料箱接收LPG的调节装置稳定地调节接收的LPG的压力，并将LPG以预定的压力传送到高压燃料泵; 燃料供给管路，其连接燃料箱，调压装置，高压燃料泵和喷射器，以便将储存在燃料箱中的液化石油气供给发动机; 以及在泵送到高压燃料泵中之后将剩余的LPG返回到燃料箱的燃料返回管路。
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公开(公告)号：KR101261833B1
公开(公告)日：2013-05-08
申请号：KR1020100126023
申请日：2010-12-10
Applicant: (주)모토닉
CPC classification number: Y02T10/32
Abstract: 본발명은직접분사엘피아이시스템에관한것으로, 봄베에내장된액체상태의엘피지연료를엔진의연소실내부로직접분사하는직접분사엘피아이시스템에있어서, 상기봄베내부에내장되어상기연료를펌핑하여엔진쪽으로공급하는연료펌프, 상기연료펌프에의해펌핑되어공급되는연료중에서일부를고압으로가압하고나머지연료를상기봄베로회수하는연료회수라인에전달하는고압펌프, 상기고압펌프에연결되어고압으로가압된연료가충진되는딜리버리파이프, 상기딜리버리파이프에연결되며고압으로충진된액체상태의연료를상기연소실내부로직접분사하는인젝터및 상기엔진의목표 RPM에기초하여상기고압펌프로부터가압된연료를연소실내부에직접분사하도록상기인젝터의구동을제어하는중앙처리유닛을포함하는구성을마련한다. 상기와같은직접분사엘피아이시스템을이용하는것에의해, 본발명은연료펌프의지속적인펌핑동작에의해고압펌프로공급되는연료중에서일부를고압으로가압하여딜리버리파이프로공급하고, 나머지연료를고압펌프의저압부로부터봄베로회수하도록하여봄베내부의열평형을유지시켜봄베내부의연료온도상승으로인한엘피지연료의기화를방지한다.
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公开(公告)号：KR101048656B1
公开(公告)日：2011-07-12
申请号：KR1020090105006
申请日：2009-11-02
Applicant: (주)모토닉
CPC classification number: Y02T10/32
Abstract: 본 발명은 가스차량용 엘피아이 시스템에서 외장형 연료펌프 내부의 액체상태 및 기체상태의 연료를 엔진에 공급할 수 있는 외장형 연료펌프에 관한 것으로, 봄베로부터 공급되는 연료를 펌핑하도록 하부에 편심 구동부가 형성된 샤프트를 회전시키는 모터부, 상기 편심 구동부의 회전운동을 이용하여 연료를 펌핑하는 펌프부 및 상기 펌프부의 외부를 차폐하고, 상기 봄베로부터 공급되는 연료를 내부의 챔버실로 유입시키는 연료유입구가 형성된 펌프챔버를 포함하고, 상기 펌프부는 복수의 챔버를 포함하되, 상기 챔버 중에서 일부는 상기 챔버실로부터 기체상태의 연료를 흡입하는 기상 흡입구를 구비하고 나머지는 액체상태의 연료를 흡입하는 액상 흡입구를 구비하는 구성을 마련한다.
상기와 같은 외장형 연료펌프를 이용하는 것에 의해, 액상 흡입구 및 기상 흡입구를 통해 액체상태 및 기체상태의 연료를 엔진에 원활하게 공급하여, 기상층을 감소시킴으로써 기상층과 액상층 사이의 연료 유면이 저하되면서 연료공급을 방해하는 현상을 제거하여 엔진 부조를 감소시킬 수 있다.
엘피아이, 외장형 연료펌프, 기상층, 연료공급, 액상 흡입구, 기상 흡입구-
公开(公告)号：KR1020140106764A
公开(公告)日：2014-09-04
申请号：KR1020130017525
申请日：2013-02-19
Applicant: (주)모토닉
CPC classification number: Y02T10/32 , F02M21/0245 , F02M21/0239 , F02M21/0242 , F02M21/0275 , F02M37/0052 , F02M37/10
Abstract: The present invention relates to a high-pressure fuel pump for a direct injection type LPI (low-pressure injection) system which includes a body having an outlet and a collection port on the lateral surface; a bracket joined to the bottom of the body and including an inner suction means generating force for sucking fuel; a damper unit including an inlet on one side, joined to the top of the body, and reducing the pulsation of the sucked fuel; and a flow-rate control valve joined to one side of the body and controlling a supply and discharge pressure of the fuel. By using the high-pressure fuel pump for the direct injection type LPI system, an effect of generating high pressure by rapidly collecting LPG fuel including air bubbles generated by the vaporization of the LPG fuel due to heat, which is generated by the operation of a fuel flow valve, in a cylinder and then sufficiently pressing the rest of the LPG fuel at a preset high pressure is obtained.
Abstract translation: 本发明涉及一种用于直喷式LPI（低压喷射）系统的高压燃料泵，其包括在侧面具有出口和收集口的主体; 连接到所述主体的底部并且包括产生用于吸入燃料的力的内部抽吸装置的支架; 阻尼器单元，其包括一侧的入口，接合到主体的顶部，并减少吸入的燃料的脉动; 以及与本体的一侧连接并控制燃料的供给和排出压力的流量控制阀。 通过使用用于直接喷射式LPI系统的高压燃料泵，通过快速收集LPG燃料产生高压的效果，LPG燃料包括由于由于热量而产生的LPG燃料的蒸发而产生的气泡 燃料流量阀在气缸中，然后以预设的高压充分按压其余的LPG燃料。
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公开(公告)号：KR101383751B1
公开(公告)日：2014-04-17
申请号：KR1020120145807
申请日：2012-12-13
Applicant: (주)모토닉
CPC classification number: F02D19/0613 , F02D19/0647 , F02D41/0025 , Y02T10/32 , Y02T10/36
Abstract: The present invention relates to a control method of a bi-fuel feed system. The control method includes the steps of inspecting a set state of a mode switch when an engine starts; proceeding to a gasoline driving mode or a liquid petroleum gas (LPG) driving mode based on the inspected result; directly injecting a gasoline fuel into a combustion chamber of the engine by driving the gasoline driving unit in the gasoline driving mode to drive the engine; and injecting the LPG fuel into the air sucked via an intake manifold by driving an LPG supply unit in the LPG driving mode to drive the engine using the mixed gas. Therefore, in case where the fuel injection types are different from each other, such as the direct injection type gasoline fuel supply system and the LPG fuel supply system, it is possible to exactly supply the gas fuel into the engine of the vehicle by calculating injection point and injection time of the LPG fuel based on the injector driving signal of the gasoline fuel supply system. [Reference numerals] (11) Gasoline tank; (21) Fuel pump; (31) Electronic control unit; (32) Gas fuel electronic control unit; (33) Fuel control driver; (AA) Fuel rail pressure signal; (BB) Cut solenoid valve control signal; (CC) LPG pressure & temperature detection signal; (DD) Second injector control signal; (EE,GG) Injector driving signal; (FF) High-pressure valve contol signal; (HH) Ignition plug driving
Abstract translation: 本发明涉及双燃料供给系统的控制方法。 控制方法包括以下步骤：当发动机起动时检查模式开关的设定状态; 根据检查结果进行汽油驾驶模式或液化石油气（LPG）驾驶模式; 通过以汽油驾驶模式驱动汽油驱动单元直接将汽油燃料喷射到发动机的燃烧室中以驱动发动机; 并且通过在LPG驱动模式下驱动LPG供应单元将LPG燃料注入到经由进气歧管吸入的空气中，以使用混合气体来驱动发动机。 因此，在燃料喷射类型彼此不同的情况下，例如直接喷射型汽油燃料供给系统和LPG燃料供给系统，可以通过计算喷射将气体燃料精确地供给到车辆的发动机中 基于汽油燃料供给系统的喷射器驱动信号，LPG燃料的点和喷射时间。 （附图标记）（11）汽油罐; （21）燃油泵; （31）电子控制单元; （32）燃气电控单元; （33）燃油控制司机; （AA）燃油轨压力信号; （BB）切断电磁阀控制信号; （CC）LPG压力和温度检测信号; （DD）第二喷油器控制信号; （EE，GG）喷油器驱动信号; （FF）高压阀门信号; （HH）点火塞驱动
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Patent Agency Ranking
公开(公告)号：KR1020140001432A
公开(公告)日：2014-01-07
申请号：KR1020120068984
申请日：2012-06-27
Applicant: (주)모토닉
CPC classification number: Y02T10/125 , Y02T10/32 , F02M21/0275 , F02M21/0245 , F02M37/0029 , F02M37/0041 , F02M37/0052
Abstract: The present invention relates to a direct injection LPI system including: a fuel pump which pumps and supplies fuel to an engine by being installed inside a cylinder; a high pressure pump which pressurizes a part of the fuel pumped and supplied by the fuel pump at high pressure and delivers remaining fuel to a fuel collecting line in order to collect the fuel in the cylinder; a delivery pipe which is connected to the high pressure pump and is filled with the fuel pressurized by the high pressure; an injector which is connected to the delivery pipe and directly injects the fuel of liquid state filled by the high pressure to the inside of a combustion chamber; an electronic control unit which controls the driving of the injector in order to directly inject the fuel pressurized by the high pressure pump to the inside of the combustion chamber based on the target RPM of the engine; and a bypass line which circulates the fuel filled in the delivery pipe to the front end of the high pressure pump of the fuel supply line. By using the direct injection LPI system like the forementioned, the present invention prevents an engine abnormality and a start-off which are caused by vaporization of LPG fuel by circulating fuel supplied to the delivery pipe with the high pressure pump through the bypass line. [Reference numerals] (18) Motor controller
Abstract translation: 本发明涉及一种直接喷射LPI系统，包括：燃料泵，其通过安装在气缸内而将燃料泵送到发动机; 高压泵，其对由燃料泵在高压下泵送并供应的燃料的一部分进行加压，并将剩余的燃料输送到燃料收集管线，以便收集气缸中的燃料; 输送管，其连接到高压泵并且填充有被高压加压的燃料; 喷射器，其连接到输送管，并将通过高压填充的液态燃料直接喷射到燃烧室的内部; 电子控制单元，其控制喷射器的驱动，以便基于发动机的目标RPM直接将由高压泵加压的燃料喷射到燃烧室的内部; 以及将填充在输送管中的燃料循环到燃料供给管路的高压泵的前端的旁通管路。 通过使用如前所述的直接喷射LPI系统，本发明通过使通过旁通管线的高压泵循环供给到输送管的燃料来防止由LPG燃料的汽化引起的发动机异常和起动。 （附图标记）（18）电机控制器
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公开(公告)号：KR101199326B1
公开(公告)日：2012-11-09
申请号：KR1020110023181
申请日：2011-03-16
Applicant: (주)모토닉
IPC: B60K15/03 , B60K15/067
Abstract: 본 발명은 가스연료차량용 연료탱크 및 그의 연료충전방법에 관한 것으로, 충격 또는 진동으로부터 내부에 저장된 가스 연료를 보호하도록 강제의 고압용기로 형성되는 봄베 및 상기 봄베 내부에 미리 설정된 압력을 형성하도록 주입되는 압력 형성 가스를 포함하고, 상기 압력 형성가스는 가스 연료의 최초 주입 전에 주입되는 구성을 마련한다.
상기와 같은 가스연료차량용 연료탱크 및 그의 연료충전방법을 이용하는 것에 의해, 본 발명은 봄베 내부에 압력 형성 가스를 주입하여 일정한 압력을 형성함에 따라, 겨울철 저온상태에서 LPG 연료의 압력이 떨어지더라도 압력 형성 가스에 의해 형성된 압력에 의해 액체 상태의 LPG 연료를 원활하게 엔진으로 공급한다.-
公开(公告)号：KR1020120103834A
公开(公告)日：2012-09-20
申请号：KR1020110021710
申请日：2011-03-11
Applicant: (주)모토닉
Inventor： 이원길
CPC classification number: Y02T10/32 , F02M21/0254 , F02D41/042 , F02M21/0236 , F02M21/0275 , F02M37/0023 , F02M37/0058
Abstract: PURPOSE: A direct LPI system and a control method thereof are provided to smoothly supply LPG to an engine by preventing the cavitation. CONSTITUTION: A direct LPI system(10) comprises a fuel pump(12), a fuel supply line(S), a high pressure pump(14), a delivery pipe(15), an injector(I), a fuel recovery line(R), and a return cut solenoid valve(19). The fuel pump is embedded in a bomb(11), and pumps fuel. The fuel supply line supplies the pumped fuel to an engine. The high pressure pump pressurizes the fuel supplied through the fuel supply line at high pressure. The delivery pipe is filled with high pressure fuel. The injector directly injects the fuel filled in the delivery pipe to a combustion chamber of the engine. The fuel recovery line recovers some fuel supplied to the high pressure pump. The return cut solenoid valve selectively opens and closes the fuel recovery line based on the operation of the engine. [Reference numerals] (18) Motor controller
Abstract translation: 目的：提供直接LPI系统及其控制方法，以通过防止空化来平稳地向发动机提供LPG。 构成：直接LPI系统（10）包括燃料泵（12），燃料供应管线（S），高压泵（14），输送管（15），喷射器（I），燃料回收管线 （R）和回流电磁阀（19）。 燃油泵嵌入一个炸弹（11），并泵送燃料。 燃料供应管路将泵送的燃料供应给发动机。 高压泵在高压下对通过燃料供应管线供应的燃料加压。 输送管内装有高压燃料。 喷射器将填充在输送管中的燃料直接喷射到发动机的燃烧室。 燃油回收线回收供应给高压泵的一些燃料。 回程电磁阀基于发动机的操作选择性地打开和关闭燃料回收管线。 （附图标记）（18）电机控制器
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公开(公告)号：KR1020120103833A
公开(公告)日：2012-09-20
申请号：KR1020110021709
申请日：2011-03-11
Applicant: (주)모토닉
CPC classification number: Y02T10/32 , F02M21/0245 , F02D19/0607 , F02D19/0628 , F02M21/0275 , F02M37/0058
Abstract: PURPOSE: A direct LPI system and a control method thereof are provided to prevent fuel from becoming vaporized in a fuel supply process by constantly maintaining pre-set pressure. CONSTITUTION: A direct LPI system(10) comprises a fuel pump(12), a regulator(16), a high pressure pump(14), a delivery pipe(15), and an injector(I). The fuel pump is embedded in a bomb(11), and supplies fuel to an engine(E). The regulator maintains the fuel pumped by the fuel pump at pre-set pressure. The high pressure pump pressurizes the fuel at high pressure. The delivery pipe is connected to the high pressure pump, and filled with high pressure fuel. The injector is connected to the delivery pipe, and directly injects high-pressure fuel in a liquid state to a combustion chamber. [Reference numerals] (18) Motor controller
Abstract translation: 目的：提供直接LPI系统及其控制方法，以通过不断维持预设压力来防止燃料在燃料供应过程中蒸发。 构成：直接LPI系统（10）包括燃料泵（12），调节器（16），高压泵（14），输送管（15）和喷射器（I）。 燃料泵嵌入炸弹（11）中，并将燃料供应给发动机（E）。 调节器将燃油泵泵送的燃料保持在预设的压力。 高压泵在高压下对燃料加压。 输送管连接到高压泵，并充满高压燃料。 注射器连接到输送管，并且将液态的高压燃料直接喷射到燃烧室。 （附图标记）（18）电机控制器
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公开(公告)号：KR1020120090212A
公开(公告)日：2012-08-17
申请号：KR1020110010513
申请日：2011-02-07
Applicant: (주)모토닉
CPC classification number: Y02T10/32 , Y02T10/36 , F02D19/0602 , F02D19/0647 , F02D19/0681 , F02D41/0025 , F02M21/0212
Abstract: PURPOSE: A fuel supply control apparatus for vehicles with both gasoline and LPG and a control method thereof are provided to properly maintain a level of liquid fuels in a bomb by directly collecting the fuels from a low pressure part to the bomb. CONSTITUTION: A fuel supply control apparatus for vehicles with both gasoline and LPG comprises a LPG supply unit(20). The LPG supply unit comprises a LPG supply line(LS), a LPG recovery line(LR), a pressure regulator(25), a bypass line(B), and a first shutoff valve(27). The LPG supply line supplies LPG fuels in a bomb to a high pressure pump(30). The LPG recovery line recovers the some LPG supplied to the high pressure pump to the bomb. The pressure regulator reduces the pressure of the LPG fuels recovered to the bomb. The bypass line bypasses the fuels having vapor to the bomb. The first shutoff valve is opened and closed to bypass the fuels having vapor to the bomb when restarting an engine.
Abstract translation: 目的：提供具有汽油和液化石油气的车辆的燃料供应控制装置及其控制方法，以通过将燃料从低压部分直接收集到炸弹来适当地保持在炸弹中的液体燃料的水平。 构成：用于具有汽油和LPG的车辆的燃料供应控制装置包括LPG供应单元（20）。 LPG供应单元包括LPG供应管线（LS），LPG回收管线（LR），压力调节器（25），旁通管线（B）和第一截止阀（27）。 液化石油气供应线将一个炸弹中的LPG燃料提供给高压泵（30）。 液化石油气回收线回收了向高压泵供应的一些液化石油气。 压力调节器降低了回收到炸弹中的LPG燃料的压力。 旁路管路绕过具有蒸气的燃料到炸弹。 当重新启动发动机时，第一个截止阀被打开和关闭以绕过具有蒸气的燃料。
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