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公开(公告)号：KR100486833B1
公开(公告)日：2005-04-29
申请号：KR1020020053793
申请日：2002-09-06
Applicant: 한국기계연구원
IPC: G01M99/00
Abstract: 본 발명은 LPLi 시스템을 장착한 LPG 차량용 연료분사기를 통하여 연료를 분사하고 이를 다시 회수함으로써 연료분사기의 반복적인 분사실험을 할 수 있는 LPLi 차량용 연료분사기의 내구실험 시스템에 관한 것이다.
본 발명에 따른 LPLi 차량용 연료분사기의 내구실험 시스템은, LPG가 액체상태로 저장되어 있는 LPG 봄베(bombe)와; 상기 LPG 봄베의 내부에 설치되어 LPG 연료를 포화증기압 이상으로 가압하여 외부로 이송시키는 LPG 연료펌프와; 상기 LPG 연료펌프와 연료 공급라인을 통하여 연결되어 있어 이로부터 연료를 공급받아 분사구를 통해 연료를 분사하는 연료분사기와; 상기 연료분사기의 분사구와 연결되고 이 분사구로부터 분사되는 연료를 받아 임시 저장하였다가 이 연료를 연료 회수라인을 통해 상기 LPG 봄베로 이송시키는 LPG 연료탱크; 및 상기 연료분사기와 LPG 연료탱크에 연료 이송라인을 통해 연결되어 상기 연료분사기에서 분사되지 않은 연료의 압력을 상기 LPG 연료탱크 압력으로 감압하여 상기 LPG 연료탱크로 이송시키는 레귤레이터(regulator)를 포함한다.-
公开(公告)号：KR1020040023248A
公开(公告)日：2004-03-18
申请号：KR1020020054933
申请日：2002-09-11
Applicant: 한국기계연구원
IPC: F02B23/00
CPC classification number: Y02T10/125
Abstract: PURPOSE: A piston for a medium and heavy duty spark ignition lean burn engine is provided to increase a squish area and secure a sufficient flame area by optimizing a shape of a head part of a piston, thereby securing strong turbulence strength and realizing combustion stability. CONSTITUTION: A piston head part(12) has a bowl type indented part(19) to form a part of a combustion chamber. A ring part(20) has a plurality of ring grooves(21) at predetermined intervals in association with an outer peripheral surface of an upper end of a piston. A compression ring or an oil ring is inserted into each ring groove. A skirt part(23) is formed at a lower end of the piston for receiving a side pressure when the piston reciprocates up and down. A side wall of the bowl type indented part includes a first inclined part(14) inclining downward at a predetermined angle with an upper end surface of the piston head part, a vertical part(16) vertical to the upper end surface of the piston head, and a second inclined part(18) inclining downward at a predetermined angle with the vertical part.
Abstract translation: 目的：提供一种用于中重型火花点火式稀燃燃烧发动机的活塞，通过优化活塞头部的形状来增加挤压面积并确保足够的火焰面积，从而确保强烈的湍流强度并实现燃烧稳定性。 构成：活塞头部分（12）具有碗形凹入部分（19）以形成燃烧室的一部分。 环形部分（20）与活塞的上端的外周表面相关联地以预定间隔具有多个环形槽（21）。 压缩环或油环插入每个环槽。 在活塞的下端形成裙部（23），用于当活塞上下往复运动时接受侧压。 碗型凹入部的侧壁包括与活塞头部的上端面以规定角度向下倾斜的第一倾斜部（14），垂直于活塞头的上端面的垂直部（16） 以及与垂直部分以预定角度向下倾斜的第二倾斜部分（18）。
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公开(公告)号：KR1020040023247A
公开(公告)日：2004-03-18
申请号：KR1020020054932
申请日：2002-09-11
Applicant: 한국기계연구원
IPC: F02M65/00
Abstract: PURPOSE: A leakage test equipment for an LPG high pressure injector in LPG vehicles using an LPLi(Liquid Phase LPG injection) system is provided to easily assemble and disassemble an LPG high pressure injector, and easily exchange main components. CONSTITUTION: A main body(12) has an open space for mounting components in the center of a block, and fuel injection ports(12a,12b) slantingly formed on a pair of external surfaces to be communicated with the open space. An inner housing(25) is installed in the center space of the main body. A needle(29) is installed in the inner housing to be movable up and down by a coil(27) and a core(20). An upper cover(14) and a lower cover(23) are mounted at upper and lower ends of the main body for firmly supporting components of a fuel injector. A bracket(16) is installed at the upper end of the main body for supporting an upper end of the core. A head is installed at the upper end of the core for rotating the head to control a gap between the needle and the core to control elastic force of a spring(34). A plate type head of a pole piece(18) is turned to a position between the needle and the pole piece.
Abstract translation: 目的：提供使用LPLi（液相LPG注射）系统的液化石油气车辆LPG高压喷油器的泄漏测试设备，以轻松组装和拆卸LPG高压喷油器，并可轻松更换主要部件。 构成：主体（12）具有用于将部件安装在块的中心的开放空间，以及倾斜地形成在一对外表面上以与开放空间连通的燃料喷射口（12a，12b）。 内壳体（25）安装在主体的中心空间中。 针（29）安装在内壳体中，可由线圈（27）和芯（20）上下移动。 在主体的上端和下端安装上盖（14）和下盖（23），用于牢固地支撑燃料喷射器的部件。 支架（16）安装在主体的上端，用于支撑芯的上端。 头部安装在芯的上端，用于旋转头以控制针和芯之间的间隙，以控制弹簧（34）的弹力。 极片（18）的板式头部转动到针和极片之间的位置。
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公开(公告)号：KR1020160006072A
公开(公告)日：2016-01-18
申请号：KR1020140085471
申请日：2014-07-08
Applicant: 한국기계연구원
Abstract: 질소산화물농도를이용한차량엔진의출력향상제어방법이개시된다. 질소산화물농도를이용한차량엔진의출력향상제어방법은, (a) 차량의배기가스에포함된질소산화물의설정된범위에서, 상기배기가스의발열량을도출하고, 도출된발열량값을엔진 ECU에입력하는단계와, (b) 차량에설치된질소산화물센서를이용하여배기가스에포함된질소산화물의량을측정하는단계와, (c) 상기 (b) 단계에서측정된질소산화물의측정량이설정된기준량이상으로확인되면, 엔진 ECU의제어에의해엔진에공급되는공급연료량을설정된비율로감소시키도록제어하는단계와, (d) 상기 (b) 단계에서측정된질소산화물의측정량이설정된기준량미만으로확인되면, 엔진 ECU의제어에의해엔진에공급되는공급연료량을설정된비율로증가시키도록제어하는단계를포함한다.
Abstract translation: 公开了通过使用氮氧化物的浓度来控制和改善车辆发动机的输出的方法。 该方法包括：在排气中的氮氧化物的设定温度范围内导出车辆废气的热值的步骤（a），将得到的热值输入发动机ECU; 通过使用安装在车辆中的氮氧化物传感器来测量废气中包含的氮氧化物的量的步骤（b）; 在步骤（b）中测量的氮氧化物的量，在发动机ECU的控制下控制供给到发动机的燃料供给量的步骤（c），以减小设定比例的供给量， 不小于设定的参考量; 以及步骤（d），其在发动机ECU的控制下控制供给发动机的燃料供应量，以在步骤（b）测量的氮氧化物的量增加设定比例的供给量， ，小于设定的参考量。
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公开(公告)号：KR101477741B1
公开(公告)日：2014-12-30
申请号：KR1020130040324
申请日：2013-04-12
Applicant: 한국기계연구원
CPC classification number: Y02A30/274 , Y02T10/16
Abstract: 냉매를압축하여유출하는압축기, 상기압축기에서유출된냉매를유입받아일을한 후냉매를유출하는팽창기, 상기팽창기에서유출된냉매를응축시켜상기압축기로제공하는응축기를포함하며, 상기압축기, 상기팽창기, 및상기응축기를통해순환하는냉매를이용하여엔진으로부터배출되는배기가스와냉각수에포함된열을회수하는엔진폐열회수장치에있어서, 제1압축기로부터유출되는냉매(이하, ‘제1냉매’라고함)와, 상기응축기로유입되기전의냉매(이하, ‘제2냉매’라고함)를유입받아서로열교환시킨후 배출하는제1재생열교환기; 를포함하는엔진폐열회수장치가개시된다.
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Patent Agency Ranking66.发明授权고체 암모늄염 반응기, 그 제어방법 및 고체 암모늄염과 선택적 환원촉매를 이용한 질소산화물 정화시스템 有权固体盐酸盐的反应器及其控制方法及使用固体盐酸盐和选择性催化还原催化剂的NO x排放净化系统
公开(公告)号：KR101436936B1
公开(公告)日：2014-09-03
申请号：KR1020130064971
申请日：2013-06-05
Applicant: 한국기계연구원
CPC classification number: B01J19/24 , B01D53/90 , B01D53/9418 , B01D53/9431 , B01D53/9495 , B01D2251/2062 , B01J19/0006 , B01J2219/00058 , B01J2219/00087 , B01J2219/00132 , B01J2219/00162 , B01J2219/24 , F01N3/2066 , F01N3/208 , F01N5/02 , F01N2610/02 , F01N2610/06 , F01N2610/10 , F01N2610/12 , F01N2610/1406 , F01N2900/1808 , F01N2900/1811 , G05B15/02 , Y02T10/24
Abstract: The present invention relates to a technology that reduces nitrogen oxide (NOx), harmful gas discharged from an internal combustion engine or a burner. According to the present invention, solid ammonium salt is placed in a reactor; the solid ammonium salt is changed into ammonia by pyrolizing the ammonium salt using engine cooling water, exhaust gas, or an electrical heater that are installed in the reactor; and ammonia is sprayed by a pressure valve and a dosing valve so as to reduce nitrogen oxide remaining in an vent pipe using a selective reduction catalyst. A first chamber and a second chamber of the reactor are formed to be separated; the temperature of the first chamber is quickly increased up to the temperature at which solid ammonium salt can be pyrolized. Therefore, during initial start-up, nitrogen oxide can be quickly reduced; consumption of energy needed to heat the reactor can be reduced.
Abstract translation: 本发明涉及减少氮氧化物（NOx），从内燃机或燃烧器排出的有害气体的技术。 根据本发明，将固体铵盐置于反应器中; 通过使用安装在反应器中的发动机冷却水，废气或电加热器，通过热处理铵盐将固体铵盐变成氨; 并且通过压力阀和计量阀喷射氨，以便使用选择性还原催化剂减少排放管中残留的氮氧化物。 反应器的第一室和第二室被形成为分离; 第一室的温度迅速升高至固体铵盐可被热解的温度。 因此，在初始启动期间，可以快速降低氮氧化物; 可以减少加热反应器所需的能量消耗。
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公开(公告)号：KR1020140020410A
公开(公告)日：2014-02-19
申请号：KR1020120086661
申请日：2012-08-08
Applicant: 한국기계연구원
Abstract: The present invention relates to a side spraying type spraying nozzle for preventing an injector from being frozen. More particularly, the side spraying type spraying nozzle for preventing an injector from being frozen enables to increase the efficiency of an engine by preventing the fuel outputting part of the spraying nozzle from being frozen by controlling outer air having moisture not to be in contact with sprayed LPG fuel and to minimize the damage to a fuel supplying part and the defects of engine operation due to the shortage of fuel supply caused by the frozen of an existing hot air flue by having a penetration hole spraying fuel at the side of the hot air flue, wherein the penetration hole is slantly formed at the inside of the hot air flue for smoothly delivering the fuel.
Abstract translation: 本发明涉及一种用于防止注射器冻结的侧喷式喷嘴。 更具体地，用于防止喷射器冻结的侧喷式喷嘴能够通过防止喷雾器的燃料输出部分通过控制不与喷雾接触的外部空气来冻结而提高发动机的效率 液化石油气燃料，并且由于在现有的热风烟道的冻结引起的燃料供应不足，使燃料供应部分的损坏最小化，并且在热风道侧面喷射燃料的穿透孔 其特征在于，所述贯通孔在所述热风道的内侧倾斜地形成，以平稳地输送所述燃料。
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公开(公告)号：KR1020140011101A
公开(公告)日：2014-01-28
申请号：KR1020120077797
申请日：2012-07-17
Applicant: 한국기계연구원
CPC classification number: Y02T10/128
Abstract: A method for operating a homogeneous charge compression ignition (HCCI) engine is disclosed. The method for operating an HCCI engine comprises: a step (a) of inputting an experimental value about the pressure rise rate of an engine in the operating range of an HCCI engine to an engine control unit; and a step (b) of switching from an HCCI combustion mode to a gasoline ignition operation mode when the pressure rise rate of the engine is at a predetermined level or higher. [Reference numerals] (AA,CC) No; (BB,DD) Yes; (S10) Inputting an experimental value about the pressure rise rate of an engine in the operating range of an HCCI engine; (S20) Engine pressure rise rate of a driving vehicle > 4bar?; (S30) Performing a gasoline ignition operation mode; (S40) Engine control; (S50) Average effective pressure of braking
Abstract translation: 公开了一种用于操作均质充气压缩点火（HCCI）发动机的方法。 用于操作HCCI发动机的方法包括：将在HCCI发动机的操作范围内的发动机的压力上升率的实验值输入到发动机控制单元的步骤（a） 以及当发动机的压力上升率处于预定水平或更高时从HCCI燃烧模式切换到汽油点火运行模式的步骤（b）。 （标号）（AA，CC）否; （BB，DD）是; （S10）在HCCI发动机的运行范围内输入关于发动机的压力上升率的实验值; （S20）驾驶车辆的发动机压力上升速度> 4bar？ （S30）执行汽油点火运转模式; （S40）发动机控制; （S50）制动平均有效压力<7bar？ （S60）执行HCCI操作模式
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公开(公告)号：KR101290775B1
公开(公告)日：2013-07-29
申请号：KR1020120038552
申请日：2012-04-13
Applicant: 한국기계연구원
Abstract: PURPOSE: A combustion control method of a hydrogen fueled engine is provided to prevent abnormal combustion of the hydrogen fueled engine and to operate the hydrogen fueled engine efficiently. CONSTITUTION: A combustion control method of a hydrogen fueled engine comprises the steps of confirming (S10); controlling lean combustion (S20); and injecting the air secondarily (S40). The step of confirming is to confirm whether the hydrogen fueled engine is in a low load condition or in a high load condition. The step of controlling lean combustion is to control the lean combustion of the hydrogen fueled engine in case the hydrogen fueled engine is in a low load condition. The step of injecting the air secondarily is to inject the air into an exhaust port secondarily during valve overlap timing of the hydrogen fueled engine in a condition of a lean combustion that is done by controlling the hydrogen fueled engine, in case hydrogen fueled engine is in a high load condition. [Reference numerals] (AA) High load; (BB) Low load; (S10) Hydrogen engine is in a low load condition or a high load condition?; (S20) Lean combustion control; (S30) Rich combustion control; (S40) Secondary air injection to an exhaust port
Abstract translation: 目的：提供氢燃料发动机的燃烧控制方法，以防止氢燃料发动机的异常燃烧并有效地操作氢燃料发动机。 构成：氢燃料发动机的燃烧控制方法包括以下步骤：（S10）; 控制贫燃（S20）; 并且二次注入空气（S40）。 确认的步骤是确认氢燃料发动机是处于低负载状态还是处于高负载状态。 控制稀燃的步骤是在氢燃料发动机处于低负载状态的情况下控制氢燃料发动机的稀燃。 第二次喷射空气的步骤是在通过控制氢燃料发动机进行的贫燃燃烧的条件下，在氢燃料发动机处于 高负载条件。 （附图标记）（AA）高负载; （BB）低负载; （S10）氢发动机处于低负荷状态或高负荷状态？ （S20）精益燃烧控制; （S30）丰富燃烧控制; （S40）将二次空气喷射到排气口
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