Abstract:
PURPOSE: A junction box for a vehicle is provided to reduce the manufacturing cost and volume of a board by integrating a fuse, a relay, a communication control unit, and a connector in the single board. CONSTITUTION: A junction box for a vehicle comprises a PCB(Printed Circuit Board,100) and a cover. A fuse, a relay and a communication control unit are mounted in the PCB. A first and a second connector are located on the top and bottom of the PCB. The cover covers up the PCB with the fuse and the first and second connectors exposed.
Abstract:
PURPOSE: A measuring system of a turbo charger is provided to easily determine howling according to an operation state by installing a vibration sensor in a compressor of a turbocharger. CONSTITUTION: A measuring system of a turbo charger includes a vibration sensor(150) and a controller(170). The vibration sensor is installed in one side of the compressor(120). The controller calculates the frequency value detected in the vibration sensor and extracts the noise and vibration property of the turbo charger.
Abstract:
PURPOSE: A turbocharger noise control apparatus and method in a diesel engine is provided to secure degree of freedom of vanes in a turbocharger by reducing the fuel amount based on the preset delay time. CONSTITUTION: A turbocharger noise control apparatus in a diesel engine comprises an engine RPM detection unit(10) which detects the engine rpm from a phase change of a crank shaft or cam shaft, an acceleration pedal detection unit(20) which detects the displacement of an acceleration pedal, a memory unit(40) which sets a table of fuel amounts according to engine rpm, a control unit(30) which determines a delay time and inclination for jetting a virtual fuel amount, and an injection device(50) which performs fuel injection according to the control of the control unit.
Abstract:
본 발명에 의한 정션 박스는, 퓨즈, 릴레이 및 통신 제어부가 실장되고, 상하측 표면에 각기 제 1 커넥터부 및 제 2 커넥터부가 위치하는 PCB부; 및 상기 PCB부를 커버하되, 상기 퓨즈와 상기 제 1 커넥터부 및 제 2 커넥터부를 노출시키는 커버부;를 포함하여 구성된다. 본 발명에 의한 정션 박스는, 퓨즈, 릴레이, 통신 제어부 및 커넥터를 단일의 보드 내에서 형성하여 보드의 제작 단가를 줄이고, 사이즈와 무게 또한 감소시킬 수 있으며, 외부 전자 모듈과의 통신을 원활히 수행할 수 있다는 장점이 있다. 정션 박스, 퓨즈, 릴레이, 통신 제어부, 전자 모듈
Abstract:
An air pulsation noise measuring method of a turbocharger is provided to predict the noise of a vehicle accurately by measuring the air pulsation noise to 160,000 RPM. An air pulsation noise measuring method of a turbocharger having a turbine and a compressor which are connected with the same axis comprises a step of inducing the air to the turbine with an air supply device, and a step of performing a test while controlling the speed of the turbocharger over 160,000 RPM with a turbine inlet side flow control valve. As a pressure regulator electric valve installed at the compressor exit side is gradually closed, the pressure difference between the turbine and the compressor is reduced.
Abstract:
구멍뚫기, 뚫려진 구멍의 다듬기, 보다 크거나 보다 작은 구멍을 뚫는 작업등을 행함에 있어서, 가공 사이클 타임을 초과하는 공정이 있는 경우, 더블 사이클 가공공정을 추가시켜 가공시간을 단축시키기 위한 수단으로서, 공작물을 로딩시키는 단계와, 로딩된 공작물을 가공 스테이션으로 이동시키기 위하여 이송부재를 상승시키는 단계와, 상승된 이송부재를 직선이동시켜 가공물이 이동되도록 하는 단계와, 이동후 이송부재를 후강시키는 단계와, 가공물을 가공하는 단계를 포함하여 이루어지는 다기능 전용 공작기계의 공작물 이송방법을 제공한다.
Abstract:
PURPOSE: A tool shank automatic cleaning device and a machining center including the same are provided to detect a rotational path of a tool holder by using a sensing unit and to automatically clean a shank unit of the tool holder when an abnormal path is generated. CONSTITUTION: A tool shank automatic cleaning device (100) for a machining center comprises a sensing unit (10) and a clamping unit (30). The sensing unit is mounted on one side of a housing and senses a rotational path of a tool holder (3). The clamping unit is mounted on the other side of the housing and the tool holder is selectively clamped. A spindle assembly (1) is separated from the clamped tool holder in the clamping unit. The tool shank automatic cleaning device cleans the shank unit of the tool holder with the cleaning water sprayed from the spindle assembly.