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公开(公告)号：KR101009370B1
公开(公告)日：2011-01-19
申请号：KR1020080095785
申请日：2008-09-30
Applicant: 한국기계연구원
CPC classification number: Y02E10/74 , Y02P70/523
Abstract: 본 발명은 풍력을 이용하여 압전체로부터 생성되는 전기 에너지를 회수하는 풍력을 이용한 압전 발전기에 관한 것이다.
이를 위한 본 발명의 풍력을 이용한 압전 발전기는 압전체에 기계적 자극을 가하여 압전체로부터 생성되는 전기 에너지를 회수하는 압전 발전기에 있어서, 지지축과, 상기 지지축 상부에 베어링 결합된 회전축과, 상기 회전축의 외주연에 돌출 형성되어 풍력에 의해 상기 회전축을 회전시키는 회전날개와, 상기 지지축의 상부에 구비된 지지대와, 상기 지지대에 방사형으로 배치된 다수의 압전체, 및 상기 회전축의 외주연에 상기 각 압전체와 밀착되게 구비되는 타격날개를 포함한다.
풍력, 압전체, 회전날개, 타격 날개, 전기에너지-
公开(公告)号：KR1020100036524A
公开(公告)日：2010-04-08
申请号：KR1020080095785
申请日：2008-09-30
Applicant: 한국기계연구원
CPC classification number: Y02E10/74 , Y02P70/523 , H02N2/185 , F03D7/0244 , F03D9/25 , Y02E10/725
Abstract: PURPOSE: A piezoelectric generator is provided to economically obtain electric energy by applying a mechanical stimulus to a piezoelectric element. CONSTITUTION: A rotary shaft(3) is combined on a support shaft(1) by a bearing. A rotating wing is formed on the outer circumference of the rotary shaft. The rotating wing rotates the rotary shaft by the wind power. A support stand(2) is arranged on the support shaft. The support stand comprises an upper frame, a lower frame, and a pair of piezoelectric holders. The pair of piezoelectric holders are combined between the upper frame and the lower frame. A plurality of piezoelectric elements(4) is radially arranged on the support stand. A blow wing(5) is formed on the outer circumference of the rotary shaft to contact with each piezoelectric element.
Abstract translation: 目的：提供压电发生器，通过对压电元件施加机械刺激来经济地获得电能。 构成：旋转轴（3）通过轴承组合在支撑轴（1）上。 旋转翼形成在旋转轴的外周上。 旋转翼通过风力使旋转轴旋转。 在支撑轴上设置支撑架（2）。 支撑架包括上框架，下框架和一对压电保持器。 一对压电保持器组合在上框架和下框架之间。 多个压电元件（4）径向布置在支撑架上。 在旋转轴的外周上形成吹风翼（5），以与每个压电元件接触。
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公开(公告)号：KR1020100022379A
公开(公告)日：2010-03-02
申请号：KR1020080081026
申请日：2008-08-19
Applicant: 한국기계연구원
IPC: F16K5/06
CPC classification number: B81C1/00095 , B33Y80/00 , B81B2207/056 , B81B2207/07 , B82Y30/00 , Y10T428/24479 , Y10T428/24851
Abstract: PURPOSE: A high pressure ball valve within a double seat ring and a relief valve is provided to enhance air-tightness by pressing an opening and closing ball using the pressing force of spring and fluid. CONSTITUTION: A high pressure ball valve within a double seat ring and a relief valve comprises a seat assembly(30) accepted to both sides of a ball valve body(1). The seat assembly comprises a first seat ring, an elastic sheet ring, a second seat ring, a main spring, a plurality of sheet O-rings and a pilot part. The first seat ring is driven between a ball valve body and an opening and closing ball(10). The second seat ring is driven between the ball valve body and the opening and closing ball. The main spring is installed between the ball valve body and the rear side of the first seat ring. The pilot part is connected to the rear side of the second seat ring and passes through the first seat ring.
Abstract translation: 目的：提供双座环内的高压球阀和安全阀，以通过弹簧和流体的压力按压开闭球来提高气密性。 构成：双座环内的高压球阀和安全阀包括接受球阀体（1）两侧的座组件（30）。 座椅组件包括第一座圈，弹性片环，第二座环，主弹簧，多个片O形环和导向部。 第一座圈在球阀体和开闭球（10）之间被驱动。 第二座圈在球阀体和开闭球之间被驱动。 主弹簧安装在球阀阀体与第一阀座环的后侧之间。 导向部分连接到第二座环的后侧并穿过第一座环。
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公开(公告)号：KR1020090064913A
公开(公告)日：2009-06-22
申请号：KR1020070132290
申请日：2007-12-17
Abstract: A low-noise expansion valve is provided to continuously flow a high-pressure refrigerant in an inlet line, a valve room and an outlet line according to tilted faces respectively formed at a valve room and a poppet valve head to prevent noise due to cavitation caused by sudden change of flow line. A low-noise expansion valve(1) includes a can(10), a valve body(20), a positioner body(30), a poppet valve(40), a bellows(50) and an O-ring(60). The can includes a ring-shaped protrusion for reducing noise and vibration generated therein. The valve body is combined with the lower part of the can. The valve body includes an O-ring for sealing up a valve room. The O-ring is interposed between an upper body(21) and a lower body(22). The positioner body includes a positioner holder(31), a positioner(32), an inner groove(33) and a protrusion(34). The poppet valve includes a poppet valve rod(41) and a poppet valve head(42). A top end fixing ring(51) of the bellows is fixed to a stepped face formed at the inner side of the top of the lower body.
Abstract translation: 提供了一种低噪声膨胀阀，用于根据分别形成在阀室和提升阀头处的倾斜面连续流过入口管线，阀室和出口管路中的高压制冷剂，以防止由于气蚀引起的噪音 流线突然变化。 低噪声膨胀阀（1）包括罐（10），阀体（20），定位器主体（30），提升阀（40），波纹管（50）和O形环（60） 。 该罐包括用于减少其中产生的噪音和振动的环形突起。 阀体与罐体的下部组合。 阀体包括用于密封阀室的O形环。 O形环插入在上体（21）和下体（22）之间。 定位器本体包括定位器保持器（31），定位器（32），内槽（33）和突起（34）。 提升阀包括提升阀杆（41）和提升阀头（42）。 波纹管的顶端固定环（51）固定在形成在下体顶部内侧的台阶面上。
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公开(公告)号：KR100836227B1
公开(公告)日：2008-06-09
申请号：KR1020070022976
申请日：2007-03-08
Applicant: 한국기계연구원
Abstract: A method for modulating pulse width for the pressure control of an electro-pneumatic regulator is provided to reduce the operation number and time of intake and exhaust valves by driving the inhalation and exhaust valves based on a saturation function value. A real pressure value is calculated in a pressure sensor(50). A value to subtract the real pressure value from a target pressure value is inputted to a PID(Proportional Integral Derivative) controller(10) as an input value and then the input value is outputted as an output value through the PID controller. The output value is calculated as a value between -1 and 1 through a saturation function(20). The calculated value is converted into a PWM(Pulse Width Modulation) output time so that intake and exhaust valves are driven when the sign of the saturation function is + and -. According to the driving of inhalation and exhaust valves, pressure of an electro-pneumatic regulator(40) is controlled and then an output value of the pressure sensor is generated.
Abstract translation: 提供一种用于调节电动气动调节器的压力控制的脉冲宽度的方法，以通过基于饱和函数值驱动吸入和排气阀来减少进气门和排气门的操作次数和时间。 在压力传感器（50）中计算出实际压力值。 将从目标压力值中减去实际压力值的值作为输入值输入到PID（比例积分微分）控制器（10），然后通过PID控制器输出输出值作为输出值。 输出值通过饱和函数（20）计算为-1和1之间的值。 计算值被转换为PWM（脉宽调制）输出时间，以便当饱和功能的符号为+和 - 时驱动进气阀和排气阀。 根据吸入和排气阀的驱动，控制电动气动调节器（40）的压力，然后产生压力传感器的输出值。
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Patent Agency Ranking
公开(公告)号：KR100821987B1
公开(公告)日：2008-04-15
申请号：KR1020070012319
申请日：2007-02-06
Applicant: 한국기계연구원
IPC: G05D16/00
Abstract: A pressure regulator using a piezoelectric actuator is provided to extend the lifespan of the pressure regulator by freely controlling the fluid pressure. Two pilot valves(40,50) are fixed at an upper portion of a regulator body(20) to control input and output of fluid. The fluid is inputted to an input port(21) formed at a lower portion of the regulator body and outputted to an output port(24) via a valve chamber(23) according to the open of a pressure valve(22). The pressure valve is operated under the control of a diaphragm(30). An input fluid path which is used for inputting the fluid to the pilot valve, is connected to the input port so as to drive the diaphragm. A diaphragm supplying fluid path which supplies the fluid from the pilot valve to a diaphragm chamber, is formed oppositely to a diaphragm exhausting fluid path at an upper portion of the diaphragm chamber. An exhausting unit(29) exhausts the fluid generated from the pilot valve.
Abstract translation: 提供使用压电致动器的压力调节器，以通过自由地控制流体压力来延长压力调节器的寿命。 两个先导阀（40,50）固定在调节器主体（20）的上部，以控制流体的输入和输出。 流体被输入到形成在调节器主体的下部的输入口（21），并且经由阀室（23）根据压力阀（22）的开口输出到输出口（24）。 压力阀在隔膜（30）的控制下操作。 用于将流体输入到先导阀的输入流体路径连接到输入端口以驱动隔膜。 将来自先导阀的流体供应到隔膜室的隔膜供给流体路径形成为与隔膜室的上部处的隔膜排出流体路径相反。 排气单元（29）排出从先导阀产生的流体。
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公开(公告)号：KR100735115B1
公开(公告)日：2007-07-06
申请号：KR1020060037765
申请日：2006-04-26
Applicant: 한국기계연구원
IPC: B22D23/00
Abstract: A metal-jet unit is provided to accurately control discharge of molten metal by accurately adjusting a gap between a plunger and an orifice of a nozzle, and an internal pressure of a melting furnace, and improve molding accuracy and completeness of a three-dimensional optional shaped body by accurately controlling discharge of the molten metal. A metal-jet unit(1) comprises: a melting furnace(10) which produces molten metal, and has a nozzle(17) formed on a lower portion thereof; a material feeding part(20) for feeding a metal powder material into the melting furnace; an actuator(30) having a plunger(31) for pressing the molten metal to the nozzle; an oscillation part for finely oscillating the actuator; a gap adjusting unit(41) for adjusting a gap between the plunger and the nozzle; and a pressure adjusting unit for maintaining an internal pressure of the melting furnace to a preset pressure, wherein the nozzle includes a plunger moving part in which the plunger is vertically slidingly received, a molten metal pressing part formed in the form of a downward step height on the bottom center of the plunger moving part, and an orifice(18) formed on the bottom center of the molten metal pressing part such that the orifice faces the outside, and wherein the plunger has a discharge pressing part which is formed on a lower part thereof and projected in a step height shape corresponding to the molten metal pressing part and the orifice, and of which a lower portion is formed as a plane.
Abstract translation: 提供一种金属喷射单元，通过精确调节柱塞和喷嘴的孔口之间的间隙以及熔化炉的内部压力来精确地控制熔融金属的排出，并且提高三维可选的成型精度和完整性 通过精确地控制熔融金属的排出， 一种金属喷射装置（1），包括：产生熔融金属的熔化炉（10），其下部形成有喷嘴（17） 用于将金属粉末材料供给到熔化炉中的材料供给部件（20） 致动器（30），其具有用于将熔融金属挤压到喷嘴的柱塞（31） 振荡部分，用于使致动器微振荡; 间隙调节单元（41），用于调节柱塞和喷嘴之间的间隙; 以及压力调节单元，其用于将所述熔化炉的内部压力保持在预定压力，其中，所述喷嘴包括：活塞移动部，所述活塞被垂直滑动地容纳在所述活塞移动部中;熔融金属按压部，所述熔融金属按压部形成为向下台阶高度 在所述柱塞移动部分的底部中心上，以及形成在所述熔融金属按压部分的底部中心上的孔口（18），使得所述孔口面向外部，并且其中，所述柱塞具有排出按压部分，所述排出按压部分形成在下部 并且以与熔融金属压制部和孔对应的台阶高度形状突出，并且其下部形成为平面。
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公开(公告)号：KR100522056B1
公开(公告)日：2005-10-18
申请号：KR1020020014067
申请日：2002-03-15
IPC: F15B15/00
Abstract: 본 발명은 서보액튜에이터 메니폴드에 관한 것으로, 그 목적은 직선운동을 하는 유압실린더에 있어서, 실린더 튜브에 접하는 서보액튜에이터의 마찰을 최소화하여 유압실린더의 스틱슬립 현상을 줄여 저속운동 특성을 향상시키는 것과, 오염에 의하여 서보밸브가 손상되는 것을 방지하여 서보밸브뿐만 아니라 유압실린더의 장수명 및 고신뢰성 확보를 위한 메니폴드를 제공하는데 있다.
본 발명의 구성은 서보 밸브, 메니폴드, 서보액튜에이터로 구성되어 유체의 흐름을 제어하는 유압실리더 장치에 있어서, 상기 서보밸브와 서보액튜에이터 사이에 직렬로 배열된, 서보밸브가 장착된 제 1단 메니폴드와 그 하부에 위치한 씰 및 통상의 결합수단으로 결합된 주압력 공급라인이 가공된 제 2단 메니폴드로 구성하여 유체의 흐름을 제어하도록 구성한 것을 특징으로 한다.-
公开(公告)号：KR100260006B1
公开(公告)日：2000-10-02
申请号：KR1019970032857
申请日：1997-07-15
Applicant: 한국기계연구원
IPC: F16K17/00
Abstract: PURPOSE: A reduction valve is provided to control the pressure of a hydraulic source to secondary control pressure by using the sectional area of a pin inserted into a spool and to use a small solenoid in proportion to the hydraulic area of the pin. CONSTITUTION: A pressure pin(12) is inserted into a spool(2) to obtain a repulsive force proportional to the power of a solenoid. Secondary control pressure is controlled at the equilibrium spot between the repulsive force of the pressure pin and the force of the solenoid. A first spool land(14) and a second spool land(15) are processed in the spool and in a sleeve while a primary sleeve land(16) and a secondary sleeve land(17) are processed to linearize the flux characteristics of a valve. Thereby, the linear and secondary control pressure is controlled conveniently in proportion to the force of the solenoid. An orifice(13) is processed at the front end of the pressure pin to control the gradient of the secondary control pressure. Then, the diameter of the orifice from the same solenoid is changed to decrease overpressure or to enhance response. In addition, various control target value including the secondary control pressure is obtained by the variable sectional area of the pressure pin.
Abstract translation: 目的：提供减压阀，通过使用插入阀芯的销的截面积和与销的液压面积成比例的小螺线管，将液压源的压力控制为次级控制压力。 构成：压力销（12）插入阀芯（2）中以获得与螺线管的功率成比例的排斥力。 二次控制压力控制在压力销的排斥力与螺线管的力之间的平衡点处。 在主轴套（16）和次套筒平台（17）被加工成在阀芯和套筒中处理第一滑动平台（14）和第二滑轮架（15），以使阀的通量特性线性化 。 因此，线性和二次控制压力方便地与螺线管的力成比例地控制。 在压力销的前端处处理孔（13），以控制二级控制压力的梯度。 然后，改变来自同一螺线管的孔口的直径以降低超压或增强响应。 此外，通过压力销的可变截面面积获得包括二次控制压力的各种控制目标值。
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