Abstract:
PURPOSE: A structure of an impeller operating member for a fuel pump is provided to prevent a decrease in the torque of a motor and rotation inability of the motor by curbing an increase in frictional resistance due to foreign materials. CONSTITUTION: A structure of an impeller operating member for a fuel pump comprises an upper case(30), a lower case(10), a chamber, a motor, and a fuel pump. The chamber is formed between the upper case and the lower case. The impeller operating member is coupled to a motor so that an impeller(20) rotates in the chamber. The bottom of the upper case and the top of the lower case are formed as a plane to the rotating shaft of the motor. The top of the impeller forms an upper gap with the bottom of the upper case. The bottom of the impeller is mounted to form a lower gap with the top of the lower case.
Abstract:
PURPOSE: A filter structure imbedded in a reservoir cup for a fuel pump is provided to prevent vapor from a fuel tank from entering an impeller since a first filter with small meshes is arranged to look down. CONSTITUTION: A filter structure imbedded in a reservoir cup for a fuel pump comprises a fuel pump(30), a filter(10), an inlet, and a suction port. The fuel pump and the filter are installed in the reservoir cup, and the reservoir cup is installed in a fuel tank. An inlet is formed on the reservoir cup to receive fuel from the fuel tank. The fuel pump is arranged so that the suction port connected to an impeller looks down. The filter is fixed to under the suction port of the fuel pump. The filter is coupled by first and second filters with different sizes of meshes. The first filter is a nonwoven type.
Abstract:
본 발명은 질소산화물 흡장-환원 촉매에 관한 것이다. 보다 구체적으로, 상기 촉매는 알칼리금속과 Al, 또는 알칼리토금속과 Al을 포함하는 담체; 알칼리금속, 알칼리토금속 또는 희토류 원소의 질소산화물 흡장 원소; 및 Pt, Pd, Ru, Au, Ag, 및 Rh로 이루어진 군에서 선택되는 1 종 이상의 귀금속을 포함한다. 이와 같은 질소산화물 흡장-환원 촉매는 질소산화물 흡장 및 환원 능력이 우수하게 나타나고, 특히 열화 전후 및 황산화 전후에도 흡장 및 환원능력이 우수하게 유지되며, 저온 환경에서도 촉매 활성이 우수하게 나타난다.
Abstract:
PURPOSE: A twin scroll turbine housing for turbochargers is provided to improve castability by distributing thermal stress while equalizing the variation in the sectional area of a flow path. CONSTITUTION: A twin scroll turbine housing(5) for turbochargers comprises two scroll paths, a bypass passage, and a joining part. The two scroll paths is divided by a partition wall(11). The bypass passage is divided by a first partition curtain. . The inner flow path of the joining part is divided through the second partition curtain. The twin scroll turbine housing for the turbochargers is integrally formed with an exhaust manifold through the joining part. The partition wall is tapered toward the front end of the scroll path from the joining part.