公开(公告)号：US10316953B2

公开(公告)日：2019-06-11

申请号：US15379636

申请日：2016-12-15

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Ying-Che Weng ,  Teng-Yuan Wu ,  Jer-Lin Huang ,  Jyh-Nan Ho ,  Chun-Hsiang Yang

IPC: F16H57/04 ,  F16H57/00 ,  F16H57/021 ,  F16J15/447

Abstract: An assembly of a lubrication system for fluid machinery includes a transmission shaft, an oil-injection insulating ring and a labyrinth ring. The transmission shaft defines axially power and passive sides. The power side includes a body unit having first and second bearings. The oil-injection insulating ring located between the first and second bearings sleeves the transmission shaft and connects a fuel-supply looping having outer and inner rings. The outer ring has at least one first hole communicatively connected with the fuel-supply looping. The labyrinth ring having first and second axial ends has outer diameters tapering from the second axial end to the first axial end. The first and second axial ends face the power and passive sides, respectively. A circumference of the labyrinth ring includes circular grooves to form a circumferential step-like structure. The labyrinth ring sleeves the transmission shaft and is embedded into the body unit.

公开(公告)号：US10215784B1

公开(公告)日：2019-02-26

申请号：US15832942

申请日：2017-12-06

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chun-Han Chen ,  Chun-Hsiang Yang ,  Yung-Jen Cheng ,  Ming-Fa Tsai ,  Ying-Che Weng

IPC: H02M5/42 ,  H02M5/45 ,  H02P21/02 ,  G01R21/133 ,  H03L7/08 ,  G01R25/00 ,  H02P23/00 ,  H02P23/14

Abstract: A measuring system, during a measurement process thereof, uses a phase-locked loop mechanism of a stator phase voltage and a stator phase current of a three-phase AC motor to effectively remove harmonics and to sense and obtain the amplitude effective values of the phase voltage and the phase current of the three-phase AC motor and the phase difference between the phase voltage and phase current. Therefore, the measuring apparatus is capable of quickly and accurately calculating the input power of the motor without having to measure the parameters of the motor.

公开(公告)号：US09893669B2

公开(公告)日：2018-02-13

申请号：US14815385

申请日：2015-07-31

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chun-Hsiang Yang ,  Yung-Ren Cheng ,  Chin-Hung Kuo

IPC: H02P27/04 ,  H02P27/06 ,  H02P23/14 ,  G01R31/34

CPC classification number: H02P27/06 ,  G01R31/343 ,  H02P23/14 ,  Y02P80/116

Abstract: The present invention discloses a motor efficiency analysis method for motor inverter. The method can be performed via a real-time motor operation efficiency display device. Based on the measured primary current signal and the voltage provided by the driving device, the device can estimate related data, such as the real-time efficiency, rotational speed, torque and stator resistance, by means of several algorithms. Besides, the device is designed to be applied to most motors; therefore, users can manage the efficiency of all motors of the factory without the need to stop the machines or the manufacturing process.